./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/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 fca748b1 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/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 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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-wip.dd.update-z3-fca748b-m [2024-11-20 11:13:30,406 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-20 11:13:30,464 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-20 11:13:30,468 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-20 11:13:30,469 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-20 11:13:30,501 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-20 11:13:30,501 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-20 11:13:30,502 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-20 11:13:30,502 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-20 11:13:30,503 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-20 11:13:30,503 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-20 11:13:30,504 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-20 11:13:30,504 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-20 11:13:30,504 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-20 11:13:30,504 INFO L153 SettingsManager]: * Use SBE=true [2024-11-20 11:13:30,506 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-20 11:13:30,506 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-20 11:13:30,506 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-20 11:13:30,506 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-20 11:13:30,506 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-20 11:13:30,507 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-20 11:13:30,509 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-20 11:13:30,509 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-20 11:13:30,510 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-20 11:13:30,510 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-20 11:13:30,510 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-20 11:13:30,510 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-20 11:13:30,510 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-20 11:13:30,510 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-20 11:13:30,511 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 11:13:30,511 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-20 11:13:30,511 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-20 11:13:30,511 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-20 11:13:30,511 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-20 11:13:30,511 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-20 11:13:30,511 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-20 11:13:30,511 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-20 11:13:30,512 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-20 11:13:30,512 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-20 11:13:30,512 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:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 389f662f7096bd36438270dc54f296be4073de8eeb864b893c17044d6fb4cc06 [2024-11-20 11:13:30,684 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-20 11:13:30,702 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-20 11:13:30,704 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-20 11:13:30,705 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-20 11:13:30,705 INFO L274 PluginConnector]: CDTParser initialized [2024-11-20 11:13:30,706 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/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 [2024-11-20 11:13:31,922 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-20 11:13:32,319 INFO L384 CDTParser]: Found 1 translation units. [2024-11-20 11:13:32,319 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/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 [2024-11-20 11:13:32,352 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6c5a6c399/1a6641f7556d4403915b52f4f970c9cd/FLAGc68b550c0 [2024-11-20 11:13:32,366 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6c5a6c399/1a6641f7556d4403915b52f4f970c9cd [2024-11-20 11:13:32,368 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-20 11:13:32,370 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-20 11:13:32,373 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-20 11:13:32,373 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-20 11:13:32,377 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-20 11:13:32,378 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:13:32" (1/1) ... [2024-11-20 11:13:32,379 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2a625284 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:13:32, skipping insertion in model container [2024-11-20 11:13:32,379 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:13:32" (1/1) ... [2024-11-20 11:13:32,511 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-20 11:13:33,043 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/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] [2024-11-20 11:13:33,210 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 11:13:33,224 INFO L200 MainTranslator]: Completed pre-run [2024-11-20 11:13:33,304 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] [2024-11-20 11:13:33,340 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] [2024-11-20 11:13:33,340 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] [2024-11-20 11:13:33,341 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] [2024-11-20 11:13:33,346 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] [2024-11-20 11:13:33,346 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] [2024-11-20 11:13:33,364 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/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] [2024-11-20 11:13:33,372 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] [2024-11-20 11:13:33,373 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] [2024-11-20 11:13:33,373 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] [2024-11-20 11:13:33,373 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] [2024-11-20 11:13:33,373 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] [2024-11-20 11:13:33,374 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] [2024-11-20 11:13:33,374 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] [2024-11-20 11:13:33,374 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] [2024-11-20 11:13:33,374 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] [2024-11-20 11:13:33,375 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] [2024-11-20 11:13:33,375 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] [2024-11-20 11:13:33,375 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] [2024-11-20 11:13:33,376 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] [2024-11-20 11:13:33,376 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] [2024-11-20 11:13:33,376 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] [2024-11-20 11:13:33,379 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] [2024-11-20 11:13:33,380 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] [2024-11-20 11:13:33,380 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] [2024-11-20 11:13:33,380 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] [2024-11-20 11:13:33,380 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] [2024-11-20 11:13:33,381 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] [2024-11-20 11:13:33,381 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] [2024-11-20 11:13:33,381 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] [2024-11-20 11:13:33,382 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] [2024-11-20 11:13:33,382 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] [2024-11-20 11:13:33,382 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] [2024-11-20 11:13:33,382 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] [2024-11-20 11:13:33,383 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] [2024-11-20 11:13:33,383 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] [2024-11-20 11:13:33,383 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] [2024-11-20 11:13:33,383 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] [2024-11-20 11:13:33,383 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] [2024-11-20 11:13:33,383 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] [2024-11-20 11:13:33,385 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] [2024-11-20 11:13:33,385 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] [2024-11-20 11:13:33,385 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] [2024-11-20 11:13:33,386 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] [2024-11-20 11:13:33,386 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] [2024-11-20 11:13:33,386 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] [2024-11-20 11:13:33,413 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 11:13:33,466 INFO L204 MainTranslator]: Completed translation [2024-11-20 11:13:33,466 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:13:33 WrapperNode [2024-11-20 11:13:33,467 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-20 11:13:33,467 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-20 11:13:33,468 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-20 11:13:33,468 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-20 11:13:33,474 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:13:33" (1/1) ... [2024-11-20 11:13:33,508 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:13:33" (1/1) ... [2024-11-20 11:13:33,582 INFO L138 Inliner]: procedures = 176, calls = 475, calls flagged for inlining = 92, calls inlined = 85, statements flattened = 1980 [2024-11-20 11:13:33,583 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-20 11:13:33,583 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-20 11:13:33,584 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-20 11:13:33,584 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-20 11:13:33,593 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:13:33" (1/1) ... [2024-11-20 11:13:33,594 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:13:33" (1/1) ... [2024-11-20 11:13:33,605 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:13:33" (1/1) ... [2024-11-20 11:13:33,784 INFO L175 MemorySlicer]: Split 190 memory accesses to 9 slices as follows [2, 1, 120, 24, 20, 2, 7, 1, 13]. 63 percent of accesses are in the largest equivalence class. The 31 initializations are split as follows [2, 1, 10, 0, 15, 2, 0, 1, 0]. The 86 writes are split as follows [0, 0, 41, 24, 2, 0, 6, 0, 13]. [2024-11-20 11:13:33,785 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:13:33" (1/1) ... [2024-11-20 11:13:33,785 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:13:33" (1/1) ... [2024-11-20 11:13:33,833 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:13:33" (1/1) ... [2024-11-20 11:13:33,846 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:13:33" (1/1) ... [2024-11-20 11:13:33,854 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:13:33" (1/1) ... [2024-11-20 11:13:33,866 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:13:33" (1/1) ... [2024-11-20 11:13:33,887 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-20 11:13:33,887 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-20 11:13:33,888 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-20 11:13:33,888 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-20 11:13:33,888 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:13:33" (1/1) ... [2024-11-20 11:13:33,896 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 11:13:33,903 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 11:13:33,919 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-20 11:13:33,922 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-20 11:13:33,956 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2024-11-20 11:13:33,957 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2024-11-20 11:13:33,957 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_alloc_skb_15 [2024-11-20 11:13:33,957 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_alloc_skb_15 [2024-11-20 11:13:33,957 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_sync_poll [2024-11-20 11:13:33,957 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_sync_poll [2024-11-20 11:13:33,957 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-11-20 11:13:33,957 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-11-20 11:13:33,959 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-11-20 11:13:33,959 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-11-20 11:13:33,959 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2024-11-20 11:13:33,959 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2024-11-20 11:13:33,959 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2024-11-20 11:13:33,959 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#7 [2024-11-20 11:13:33,959 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#8 [2024-11-20 11:13:33,960 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2024-11-20 11:13:33,960 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2024-11-20 11:13:33,960 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#0 [2024-11-20 11:13:33,960 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#1 [2024-11-20 11:13:33,960 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#2 [2024-11-20 11:13:33,960 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#3 [2024-11-20 11:13:33,960 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#4 [2024-11-20 11:13:33,961 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#5 [2024-11-20 11:13:33,961 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#6 [2024-11-20 11:13:33,961 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#7 [2024-11-20 11:13:33,961 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#8 [2024-11-20 11:13:33,961 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-11-20 11:13:33,961 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-11-20 11:13:33,961 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-11-20 11:13:33,961 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-11-20 11:13:33,961 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-11-20 11:13:33,961 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2024-11-20 11:13:33,962 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2024-11-20 11:13:33,962 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#7 [2024-11-20 11:13:33,962 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#8 [2024-11-20 11:13:33,962 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2024-11-20 11:13:33,962 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2024-11-20 11:13:33,962 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-20 11:13:33,962 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-20 11:13:33,962 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-20 11:13:33,962 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-20 11:13:33,962 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-20 11:13:33,962 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-20 11:13:33,963 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-11-20 11:13:33,963 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-11-20 11:13:33,963 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2024-11-20 11:13:33,963 INFO L130 BoogieDeclarations]: Found specification of procedure skb_push [2024-11-20 11:13:33,963 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_push [2024-11-20 11:13:33,963 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_output_wakeup [2024-11-20 11:13:33,963 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_output_wakeup [2024-11-20 11:13:33,963 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#0 [2024-11-20 11:13:33,964 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#1 [2024-11-20 11:13:33,964 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#2 [2024-11-20 11:13:33,964 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#3 [2024-11-20 11:13:33,964 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#4 [2024-11-20 11:13:33,964 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#5 [2024-11-20 11:13:33,964 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#6 [2024-11-20 11:13:33,964 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#7 [2024-11-20 11:13:33,964 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#8 [2024-11-20 11:13:33,965 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#0 [2024-11-20 11:13:33,965 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#1 [2024-11-20 11:13:33,965 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#2 [2024-11-20 11:13:33,965 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#3 [2024-11-20 11:13:33,965 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#4 [2024-11-20 11:13:33,965 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#5 [2024-11-20 11:13:33,965 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#6 [2024-11-20 11:13:33,965 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#7 [2024-11-20 11:13:33,965 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#8 [2024-11-20 11:13:33,966 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free [2024-11-20 11:13:33,966 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free [2024-11-20 11:13:33,966 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2024-11-20 11:13:33,966 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2024-11-20 11:13:33,966 INFO L130 BoogieDeclarations]: Found specification of procedure spin_trylock_bh [2024-11-20 11:13:33,966 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_trylock_bh [2024-11-20 11:13:33,966 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2024-11-20 11:13:33,966 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2024-11-20 11:13:33,966 INFO L130 BoogieDeclarations]: Found specification of procedure skb_trim [2024-11-20 11:13:33,966 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_trim [2024-11-20 11:13:33,966 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_alloc [2024-11-20 11:13:33,966 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_alloc [2024-11-20 11:13:33,966 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_synctty_ioctl [2024-11-20 11:13:33,966 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_synctty_ioctl [2024-11-20 11:13:33,966 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2024-11-20 11:13:33,966 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2024-11-20 11:13:33,966 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-20 11:13:33,966 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-20 11:13:33,966 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-20 11:13:33,966 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-20 11:13:33,966 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-20 11:13:33,967 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-20 11:13:33,967 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-11-20 11:13:33,967 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-11-20 11:13:33,967 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2024-11-20 11:13:33,967 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2024-11-20 11:13:33,967 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2024-11-20 11:13:33,967 INFO L130 BoogieDeclarations]: Found specification of procedure skb_pull [2024-11-20 11:13:33,967 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_pull [2024-11-20 11:13:33,967 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_sync_close [2024-11-20 11:13:33,967 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_sync_close [2024-11-20 11:13:33,967 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2024-11-20 11:13:33,967 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2024-11-20 11:13:33,967 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2024-11-20 11:13:33,967 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2024-11-20 11:13:33,967 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_print_buffer [2024-11-20 11:13:33,967 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_print_buffer [2024-11-20 11:13:33,967 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-20 11:13:33,967 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-20 11:13:33,967 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-20 11:13:33,968 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2024-11-20 11:13:33,968 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2024-11-20 11:13:33,968 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2024-11-20 11:13:33,968 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2024-11-20 11:13:33,968 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-20 11:13:33,968 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-20 11:13:33,968 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-20 11:13:33,968 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-20 11:13:33,968 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-20 11:13:33,968 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-20 11:13:33,968 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-11-20 11:13:33,970 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2024-11-20 11:13:33,970 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2024-11-20 11:13:33,970 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#8 [2024-11-20 11:13:33,970 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-20 11:13:33,970 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2024-11-20 11:13:33,970 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2024-11-20 11:13:33,970 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_schedule [2024-11-20 11:13:33,970 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_schedule [2024-11-20 11:13:33,970 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-20 11:13:33,971 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-20 11:13:33,971 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-20 11:13:33,971 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-20 11:13:33,971 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-20 11:13:33,971 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-11-20 11:13:33,971 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2024-11-20 11:13:33,971 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2024-11-20 11:13:33,971 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2024-11-20 11:13:33,972 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_remove [2024-11-20 11:13:33,972 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_remove [2024-11-20 11:13:33,973 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec_and_test [2024-11-20 11:13:33,973 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec_and_test [2024-11-20 11:13:33,973 INFO L130 BoogieDeclarations]: Found specification of procedure sp_put [2024-11-20 11:13:33,973 INFO L138 BoogieDeclarations]: Found implementation of procedure sp_put [2024-11-20 11:13:33,973 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-20 11:13:33,973 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-20 11:13:33,973 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-20 11:13:33,973 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-20 11:13:33,973 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-20 11:13:33,973 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-11-20 11:13:33,973 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-11-20 11:13:33,974 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2024-11-20 11:13:33,974 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2024-11-20 11:13:33,974 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#8 [2024-11-20 11:13:33,974 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_tail [2024-11-20 11:13:33,974 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_tail [2024-11-20 11:13:33,974 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_sync_hangup [2024-11-20 11:13:33,974 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_sync_hangup [2024-11-20 11:13:33,974 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2024-11-20 11:13:33,974 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2024-11-20 11:13:33,975 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2024-11-20 11:13:33,975 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2024-11-20 11:13:33,975 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2024-11-20 11:13:33,975 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2024-11-20 11:13:33,975 INFO L130 BoogieDeclarations]: Found specification of procedure sp_get [2024-11-20 11:13:33,975 INFO L138 BoogieDeclarations]: Found implementation of procedure sp_get [2024-11-20 11:13:33,975 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2024-11-20 11:13:33,975 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2024-11-20 11:13:33,975 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-20 11:13:33,975 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-20 11:13:33,975 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-20 11:13:33,975 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-20 11:13:33,975 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-20 11:13:33,975 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-20 11:13:33,975 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-20 11:13:33,975 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-11-20 11:13:33,975 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-11-20 11:13:33,976 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_bh [2024-11-20 11:13:33,976 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_bh [2024-11-20 11:13:33,976 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#0 [2024-11-20 11:13:33,976 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#1 [2024-11-20 11:13:33,976 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#2 [2024-11-20 11:13:33,976 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#3 [2024-11-20 11:13:33,976 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#4 [2024-11-20 11:13:33,976 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#5 [2024-11-20 11:13:33,977 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#6 [2024-11-20 11:13:33,977 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#7 [2024-11-20 11:13:33,977 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#8 [2024-11-20 11:13:33,977 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2024-11-20 11:13:33,977 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2024-11-20 11:13:33,977 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2024-11-20 11:13:33,978 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2024-11-20 11:13:33,978 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-20 11:13:33,978 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-20 11:13:33,978 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_sync_push [2024-11-20 11:13:33,978 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_sync_push [2024-11-20 11:13:34,318 INFO L238 CfgBuilder]: Building ICFG [2024-11-20 11:13:34,322 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-20 11:13:34,373 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2024-11-20 11:13:39,745 INFO L? ?]: Removed 1116 outVars from TransFormulas that were not future-live. [2024-11-20 11:13:39,745 INFO L287 CfgBuilder]: Performing block encoding [2024-11-20 11:13:39,772 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-20 11:13:39,772 INFO L316 CfgBuilder]: Removed 3 assume(true) statements. [2024-11-20 11:13:39,772 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:13:39 BoogieIcfgContainer [2024-11-20 11:13:39,772 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-20 11:13:39,774 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-20 11:13:39,774 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-20 11:13:39,780 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-20 11:13:39,780 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 11:13:32" (1/3) ... [2024-11-20 11:13:39,781 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62cd14a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:13:39, skipping insertion in model container [2024-11-20 11:13:39,781 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:13:33" (2/3) ... [2024-11-20 11:13:39,781 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62cd14a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:13:39, skipping insertion in model container [2024-11-20 11:13:39,781 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:13:39" (3/3) ... [2024-11-20 11:13:39,782 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 [2024-11-20 11:13:39,794 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-20 11:13:39,794 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-20 11:13:39,860 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-20 11:13:39,866 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;@6e864117, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-20 11:13:39,866 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-20 11:13:39,872 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) [2024-11-20 11:13:39,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-11-20 11:13:39,885 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 11:13:39,885 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] [2024-11-20 11:13:39,886 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 11:13:39,890 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 11:13:39,890 INFO L85 PathProgramCache]: Analyzing trace with hash 1247263065, now seen corresponding path program 1 times [2024-11-20 11:13:39,896 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 11:13:39,897 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [788368279] [2024-11-20 11:13:39,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 11:13:39,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 11:13:40,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:13:40,441 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-20 11:13:40,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:13:40,449 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-20 11:13:40,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:13:40,456 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-20 11:13:40,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:13:40,463 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-20 11:13:40,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:13:40,470 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-20 11:13:40,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:13:40,475 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-20 11:13:40,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:13:40,482 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-20 11:13:40,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:13:40,492 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-20 11:13:40,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:13:40,498 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-20 11:13:40,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:13:40,504 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-20 11:13:40,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:13:40,509 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2024-11-20 11:13:40,511 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 11:13:40,511 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [788368279] [2024-11-20 11:13:40,512 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [788368279] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 11:13:40,512 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 11:13:40,512 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-20 11:13:40,513 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1834542920] [2024-11-20 11:13:40,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 11:13:40,517 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 11:13:40,517 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 11:13:40,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 11:13:40,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 11:13:40,535 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) [2024-11-20 11:13:44,557 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 [] [2024-11-20 11:13:48,563 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 [] [2024-11-20 11:13:49,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 11:13:49,988 INFO L93 Difference]: Finished difference Result 2173 states and 3186 transitions. [2024-11-20 11:13:49,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 11:13:49,990 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 [2024-11-20 11:13:49,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 11:13:50,010 INFO L225 Difference]: With dead ends: 2173 [2024-11-20 11:13:50,011 INFO L226 Difference]: Without dead ends: 1464 [2024-11-20 11:13:50,017 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 [2024-11-20 11:13:50,019 INFO L432 NwaCegarLoop]: 716 mSDtfsCounter, 1335 mSDsluCounter, 1061 mSDsCounter, 0 mSdLazyCounter, 865 mSolverCounterSat, 316 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1432 SdHoareTripleChecker+Valid, 1777 SdHoareTripleChecker+Invalid, 1183 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 316 IncrementalHoareTripleChecker+Valid, 865 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.3s IncrementalHoareTripleChecker+Time [2024-11-20 11:13:50,020 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1432 Valid, 1777 Invalid, 1183 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [316 Valid, 865 Invalid, 2 Unknown, 0 Unchecked, 9.3s Time] [2024-11-20 11:13:50,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1464 states. [2024-11-20 11:13:50,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1464 to 1326. [2024-11-20 11:13:50,126 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) [2024-11-20 11:13:50,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1326 states to 1326 states and 1855 transitions. [2024-11-20 11:13:50,137 INFO L78 Accepts]: Start accepts. Automaton has 1326 states and 1855 transitions. Word has length 78 [2024-11-20 11:13:50,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 11:13:50,138 INFO L471 AbstractCegarLoop]: Abstraction has 1326 states and 1855 transitions. [2024-11-20 11:13:50,138 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) [2024-11-20 11:13:50,138 INFO L276 IsEmpty]: Start isEmpty. Operand 1326 states and 1855 transitions. [2024-11-20 11:13:50,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-11-20 11:13:50,146 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 11:13:50,146 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] [2024-11-20 11:13:50,146 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-20 11:13:50,146 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 11:13:50,147 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 11:13:50,147 INFO L85 PathProgramCache]: Analyzing trace with hash -1079685925, now seen corresponding path program 1 times [2024-11-20 11:13:50,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 11:13:50,147 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [918556296] [2024-11-20 11:13:50,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 11:13:50,148 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 11:13:50,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:13:50,493 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-20 11:13:50,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:13:50,498 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-20 11:13:50,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:13:50,505 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-20 11:13:50,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:13:50,513 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-20 11:13:50,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:13:50,521 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-20 11:13:50,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:13:50,525 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-20 11:13:50,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:13:50,531 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-20 11:13:50,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:13:50,536 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-20 11:13:50,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:13:50,541 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-20 11:13:50,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:13:50,546 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-20 11:13:50,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:13:50,555 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2024-11-20 11:13:50,555 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 11:13:50,556 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [918556296] [2024-11-20 11:13:50,556 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [918556296] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 11:13:50,556 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 11:13:50,556 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-20 11:13:50,556 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1358983443] [2024-11-20 11:13:50,557 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 11:13:50,558 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 11:13:50,558 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 11:13:50,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 11:13:50,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-20 11:13:50,559 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) [2024-11-20 11:13:54,570 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 [] [2024-11-20 11:13:56,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 11:13:56,273 INFO L93 Difference]: Finished difference Result 4203 states and 5995 transitions. [2024-11-20 11:13:56,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-20 11:13:56,273 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 [2024-11-20 11:13:56,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 11:13:56,290 INFO L225 Difference]: With dead ends: 4203 [2024-11-20 11:13:56,291 INFO L226 Difference]: Without dead ends: 2893 [2024-11-20 11:13:56,294 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-20 11:13:56,296 INFO L432 NwaCegarLoop]: 787 mSDtfsCounter, 1362 mSDsluCounter, 2464 mSDsCounter, 0 mSdLazyCounter, 1644 mSolverCounterSat, 305 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1463 SdHoareTripleChecker+Valid, 3251 SdHoareTripleChecker+Invalid, 1950 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 305 IncrementalHoareTripleChecker+Valid, 1644 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2024-11-20 11:13:56,296 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1463 Valid, 3251 Invalid, 1950 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [305 Valid, 1644 Invalid, 1 Unknown, 0 Unchecked, 5.5s Time] [2024-11-20 11:13:56,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2893 states. [2024-11-20 11:13:56,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2893 to 2685. [2024-11-20 11:13:56,395 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) [2024-11-20 11:13:56,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2685 states to 2685 states and 3805 transitions. [2024-11-20 11:13:56,409 INFO L78 Accepts]: Start accepts. Automaton has 2685 states and 3805 transitions. Word has length 82 [2024-11-20 11:13:56,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 11:13:56,410 INFO L471 AbstractCegarLoop]: Abstraction has 2685 states and 3805 transitions. [2024-11-20 11:13:56,410 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) [2024-11-20 11:13:56,410 INFO L276 IsEmpty]: Start isEmpty. Operand 2685 states and 3805 transitions. [2024-11-20 11:13:56,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-11-20 11:13:56,418 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 11:13:56,418 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] [2024-11-20 11:13:56,418 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-20 11:13:56,418 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 11:13:56,419 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 11:13:56,419 INFO L85 PathProgramCache]: Analyzing trace with hash -756578280, now seen corresponding path program 1 times [2024-11-20 11:13:56,419 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 11:13:56,419 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1299196183] [2024-11-20 11:13:56,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 11:13:56,419 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 11:13:56,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:13:56,609 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-20 11:13:56,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:13:56,614 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-20 11:13:56,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:13:56,616 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-20 11:13:56,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:13:56,619 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-20 11:13:56,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:13:56,622 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-20 11:13:56,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:13:56,625 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-20 11:13:56,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:13:56,628 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-20 11:13:56,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:13:56,631 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-20 11:13:56,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:13:56,652 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-20 11:13:56,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:13:56,657 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-20 11:13:56,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:13:56,681 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-20 11:13:56,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:13:56,700 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-20 11:13:56,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:13:56,720 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-20 11:13:56,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:13:56,727 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-20 11:13:56,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:13:56,738 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 11:13:56,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:13:56,744 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2024-11-20 11:13:56,744 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 11:13:56,744 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1299196183] [2024-11-20 11:13:56,744 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1299196183] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 11:13:56,744 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 11:13:56,744 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-20 11:13:56,745 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1728305595] [2024-11-20 11:13:56,745 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 11:13:56,745 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-20 11:13:56,746 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 11:13:56,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-20 11:13:56,746 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-20 11:13:56,747 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) [2024-11-20 11:14:00,756 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-20 11:14:04,760 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-20 11:14:08,772 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-20 11:14:12,778 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-20 11:14:14,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 11:14:14,760 INFO L93 Difference]: Finished difference Result 7559 states and 10766 transitions. [2024-11-20 11:14:14,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-20 11:14:14,760 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 [2024-11-20 11:14:14,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 11:14:14,781 INFO L225 Difference]: With dead ends: 7559 [2024-11-20 11:14:14,781 INFO L226 Difference]: Without dead ends: 4898 [2024-11-20 11:14:14,788 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2024-11-20 11:14:14,789 INFO L432 NwaCegarLoop]: 666 mSDtfsCounter, 1999 mSDsluCounter, 1457 mSDsCounter, 0 mSdLazyCounter, 1308 mSolverCounterSat, 846 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2086 SdHoareTripleChecker+Valid, 2123 SdHoareTripleChecker+Invalid, 2158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 846 IncrementalHoareTripleChecker+Valid, 1308 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.7s IncrementalHoareTripleChecker+Time [2024-11-20 11:14:14,790 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2086 Valid, 2123 Invalid, 2158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [846 Valid, 1308 Invalid, 4 Unknown, 0 Unchecked, 17.7s Time] [2024-11-20 11:14:14,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4898 states. [2024-11-20 11:14:14,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4898 to 4306. [2024-11-20 11:14:14,932 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) [2024-11-20 11:14:14,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4306 states to 4306 states and 6084 transitions. [2024-11-20 11:14:14,950 INFO L78 Accepts]: Start accepts. Automaton has 4306 states and 6084 transitions. Word has length 128 [2024-11-20 11:14:14,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 11:14:14,951 INFO L471 AbstractCegarLoop]: Abstraction has 4306 states and 6084 transitions. [2024-11-20 11:14:14,951 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) [2024-11-20 11:14:14,951 INFO L276 IsEmpty]: Start isEmpty. Operand 4306 states and 6084 transitions. [2024-11-20 11:14:14,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2024-11-20 11:14:14,958 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 11:14:14,958 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] [2024-11-20 11:14:14,958 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-20 11:14:14,959 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 11:14:14,960 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 11:14:14,960 INFO L85 PathProgramCache]: Analyzing trace with hash 15639102, now seen corresponding path program 1 times [2024-11-20 11:14:14,960 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 11:14:14,960 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [346813819] [2024-11-20 11:14:14,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 11:14:14,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 11:14:15,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:14:15,168 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-20 11:14:15,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:14:15,172 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-20 11:14:15,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:14:15,175 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-20 11:14:15,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:14:15,179 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-20 11:14:15,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:14:15,184 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-20 11:14:15,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:14:15,189 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-20 11:14:15,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:14:15,192 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-20 11:14:15,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:14:15,197 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-20 11:14:15,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:14:15,201 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-20 11:14:15,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:14:15,204 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-20 11:14:15,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:14:15,225 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 11:14:15,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:14:15,259 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-20 11:14:15,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:14:15,270 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-20 11:14:15,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:14:15,284 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 11:14:15,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:14:15,289 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-20 11:14:15,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:14:15,296 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-20 11:14:15,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:14:15,299 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-20 11:14:15,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:14:15,303 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2024-11-20 11:14:15,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:14:15,308 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2024-11-20 11:14:15,308 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 11:14:15,308 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [346813819] [2024-11-20 11:14:15,309 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [346813819] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 11:14:15,309 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 11:14:15,309 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-20 11:14:15,309 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1289173296] [2024-11-20 11:14:15,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 11:14:15,309 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 11:14:15,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 11:14:15,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 11:14:15,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-20 11:14:15,310 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) [2024-11-20 11:14:19,324 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-20 11:14:23,326 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-20 11:14:27,330 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 [] [2024-11-20 11:14:29,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 11:14:29,602 INFO L93 Difference]: Finished difference Result 11064 states and 15579 transitions. [2024-11-20 11:14:29,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-20 11:14:29,602 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 [2024-11-20 11:14:29,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 11:14:29,629 INFO L225 Difference]: With dead ends: 11064 [2024-11-20 11:14:29,629 INFO L226 Difference]: Without dead ends: 6782 [2024-11-20 11:14:29,637 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2024-11-20 11:14:29,639 INFO L432 NwaCegarLoop]: 877 mSDtfsCounter, 1241 mSDsluCounter, 2352 mSDsCounter, 0 mSdLazyCounter, 1708 mSolverCounterSat, 439 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1332 SdHoareTripleChecker+Valid, 3229 SdHoareTripleChecker+Invalid, 2150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 439 IncrementalHoareTripleChecker+Valid, 1708 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.0s IncrementalHoareTripleChecker+Time [2024-11-20 11:14:29,641 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1332 Valid, 3229 Invalid, 2150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [439 Valid, 1708 Invalid, 3 Unknown, 0 Unchecked, 14.0s Time] [2024-11-20 11:14:29,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6782 states. [2024-11-20 11:14:29,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6782 to 6044. [2024-11-20 11:14:29,827 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) [2024-11-20 11:14:29,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6044 states to 6044 states and 8413 transitions. [2024-11-20 11:14:29,847 INFO L78 Accepts]: Start accepts. Automaton has 6044 states and 8413 transitions. Word has length 149 [2024-11-20 11:14:29,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 11:14:29,848 INFO L471 AbstractCegarLoop]: Abstraction has 6044 states and 8413 transitions. [2024-11-20 11:14:29,849 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) [2024-11-20 11:14:29,849 INFO L276 IsEmpty]: Start isEmpty. Operand 6044 states and 8413 transitions. [2024-11-20 11:14:29,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-11-20 11:14:29,856 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 11:14:29,857 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] [2024-11-20 11:14:29,857 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-20 11:14:29,857 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 11:14:29,858 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 11:14:29,858 INFO L85 PathProgramCache]: Analyzing trace with hash 1420180406, now seen corresponding path program 1 times [2024-11-20 11:14:29,876 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 11:14:29,876 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1732707585] [2024-11-20 11:14:29,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 11:14:29,876 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 11:14:29,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:14:30,083 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-20 11:14:30,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:14:30,086 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-20 11:14:30,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:14:30,089 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-20 11:14:30,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:14:30,092 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-20 11:14:30,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:14:30,094 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-20 11:14:30,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:14:30,097 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-20 11:14:30,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:14:30,100 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-20 11:14:30,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:14:30,103 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-20 11:14:30,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:14:30,106 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-20 11:14:30,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:14:30,110 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-20 11:14:30,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:14:30,112 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-20 11:14:30,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:14:30,117 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 11:14:30,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:14:30,139 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-20 11:14:30,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:14:30,153 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-20 11:14:30,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:14:30,164 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-20 11:14:30,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:14:30,169 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-20 11:14:30,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:14:30,180 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 11:14:30,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:14:30,184 INFO L134 CoverageAnalysis]: Checked inductivity of 273 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-20 11:14:30,184 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 11:14:30,185 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1732707585] [2024-11-20 11:14:30,185 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1732707585] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 11:14:30,185 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 11:14:30,185 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-20 11:14:30,185 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1966082587] [2024-11-20 11:14:30,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 11:14:30,185 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-20 11:14:30,186 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 11:14:30,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-20 11:14:30,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-20 11:14:30,186 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) [2024-11-20 11:14:34,194 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 [] [2024-11-20 11:14:38,196 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-20 11:14:42,201 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-20 11:14:46,205 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-20 11:14:50,210 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-20 11:14:52,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 11:14:52,719 INFO L93 Difference]: Finished difference Result 16168 states and 22563 transitions. [2024-11-20 11:14:52,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-20 11:14:52,720 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 [2024-11-20 11:14:52,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 11:14:52,764 INFO L225 Difference]: With dead ends: 16168 [2024-11-20 11:14:52,767 INFO L226 Difference]: Without dead ends: 10159 [2024-11-20 11:14:52,783 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2024-11-20 11:14:52,784 INFO L432 NwaCegarLoop]: 681 mSDtfsCounter, 1945 mSDsluCounter, 2297 mSDsCounter, 0 mSdLazyCounter, 1959 mSolverCounterSat, 682 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2025 SdHoareTripleChecker+Valid, 2978 SdHoareTripleChecker+Invalid, 2646 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 682 IncrementalHoareTripleChecker+Valid, 1959 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.1s IncrementalHoareTripleChecker+Time [2024-11-20 11:14:52,784 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2025 Valid, 2978 Invalid, 2646 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [682 Valid, 1959 Invalid, 5 Unknown, 0 Unchecked, 22.1s Time] [2024-11-20 11:14:52,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10159 states. [2024-11-20 11:14:53,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10159 to 8975. [2024-11-20 11:14:53,170 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) [2024-11-20 11:14:53,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8975 states to 8975 states and 12384 transitions. [2024-11-20 11:14:53,199 INFO L78 Accepts]: Start accepts. Automaton has 8975 states and 12384 transitions. Word has length 151 [2024-11-20 11:14:53,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 11:14:53,201 INFO L471 AbstractCegarLoop]: Abstraction has 8975 states and 12384 transitions. [2024-11-20 11:14:53,201 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) [2024-11-20 11:14:53,201 INFO L276 IsEmpty]: Start isEmpty. Operand 8975 states and 12384 transitions. [2024-11-20 11:14:53,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-11-20 11:14:53,211 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 11:14:53,211 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] [2024-11-20 11:14:53,211 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-20 11:14:53,211 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 11:14:53,212 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 11:14:53,212 INFO L85 PathProgramCache]: Analyzing trace with hash -1479340687, now seen corresponding path program 1 times [2024-11-20 11:14:53,212 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 11:14:53,212 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1611531031] [2024-11-20 11:14:53,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 11:14:53,212 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 11:14:53,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:14:53,384 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-20 11:14:53,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:14:53,389 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-20 11:14:53,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:14:53,393 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-20 11:14:53,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:14:53,396 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-20 11:14:53,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:14:53,400 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-20 11:14:53,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:14:53,403 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-20 11:14:53,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:14:53,406 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-20 11:14:53,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:14:53,409 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-20 11:14:53,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:14:53,411 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-20 11:14:53,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:14:53,414 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-20 11:14:53,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:14:53,419 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-20 11:14:53,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:14:53,423 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 11:14:53,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:14:53,441 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-20 11:14:53,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:14:53,459 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-20 11:14:53,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:14:53,474 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-20 11:14:53,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:14:53,485 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-20 11:14:53,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:14:53,528 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-20 11:14:53,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:14:53,547 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 11:14:53,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:14:53,551 INFO L134 CoverageAnalysis]: Checked inductivity of 273 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 266 trivial. 0 not checked. [2024-11-20 11:14:53,551 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 11:14:53,551 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1611531031] [2024-11-20 11:14:53,551 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1611531031] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 11:14:53,552 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 11:14:53,552 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-20 11:14:53,552 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [321851157] [2024-11-20 11:14:53,552 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 11:14:53,552 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-20 11:14:53,552 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 11:14:53,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-20 11:14:53,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-20 11:14:53,553 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) [2024-11-20 11:14:57,560 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-20 11:15:01,568 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-20 11:15:05,572 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 []