./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ppp--ppp_async.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef469ef5-0aa9-4472-9f4e-0a94fdca4c28/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef469ef5-0aa9-4472-9f4e-0a94fdca4c28/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef469ef5-0aa9-4472-9f4e-0a94fdca4c28/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef469ef5-0aa9-4472-9f4e-0a94fdca4c28/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ppp--ppp_async.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef469ef5-0aa9-4472-9f4e-0a94fdca4c28/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef469ef5-0aa9-4472-9f4e-0a94fdca4c28/bin/uautomizer-verify-aQ6SnzHsRB --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 f78e25bf76e2d1d395e5e41868c5ddb628a36f1efdf095bb509ea6a3a366617b --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-27 20:18:30,654 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-27 20:18:30,799 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef469ef5-0aa9-4472-9f4e-0a94fdca4c28/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-27 20:18:30,807 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-27 20:18:30,807 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-27 20:18:30,856 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-27 20:18:30,857 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-27 20:18:30,857 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-27 20:18:30,858 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-27 20:18:30,859 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-27 20:18:30,859 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-27 20:18:30,859 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-27 20:18:30,860 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-27 20:18:30,860 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-27 20:18:30,860 INFO L153 SettingsManager]: * Use SBE=true [2024-11-27 20:18:30,861 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-27 20:18:30,862 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-27 20:18:30,863 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-27 20:18:30,863 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-27 20:18:30,863 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-27 20:18:30,863 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-27 20:18:30,863 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-27 20:18:30,863 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-27 20:18:30,864 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-27 20:18:30,864 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-27 20:18:30,864 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-27 20:18:30,864 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 20:18:30,864 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 20:18:30,864 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 20:18:30,864 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 20:18:30,864 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-27 20:18:30,865 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 20:18:30,865 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 20:18:30,865 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 20:18:30,865 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 20:18:30,865 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-27 20:18:30,865 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-27 20:18:30,865 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-27 20:18:30,865 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-27 20:18:30,865 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-27 20:18:30,865 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-27 20:18:30,866 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-27 20:18:30,866 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-27 20:18:30,866 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-27 20:18:30,866 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-27 20:18:30,866 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef469ef5-0aa9-4472-9f4e-0a94fdca4c28/bin/uautomizer-verify-aQ6SnzHsRB 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 -> f78e25bf76e2d1d395e5e41868c5ddb628a36f1efdf095bb509ea6a3a366617b [2024-11-27 20:18:31,229 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-27 20:18:31,240 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-27 20:18:31,243 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-27 20:18:31,244 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-27 20:18:31,245 INFO L274 PluginConnector]: CDTParser initialized [2024-11-27 20:18:31,246 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef469ef5-0aa9-4472-9f4e-0a94fdca4c28/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ppp--ppp_async.ko-entry_point.cil.out.i [2024-11-27 20:18:35,012 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef469ef5-0aa9-4472-9f4e-0a94fdca4c28/bin/uautomizer-verify-aQ6SnzHsRB/data/82ba9e0ab/f90daa79b1504c6fab88bdc219c0b746/FLAGfcb310bd7 [2024-11-27 20:18:35,856 INFO L384 CDTParser]: Found 1 translation units. [2024-11-27 20:18:35,857 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef469ef5-0aa9-4472-9f4e-0a94fdca4c28/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ppp--ppp_async.ko-entry_point.cil.out.i [2024-11-27 20:18:35,918 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef469ef5-0aa9-4472-9f4e-0a94fdca4c28/bin/uautomizer-verify-aQ6SnzHsRB/data/82ba9e0ab/f90daa79b1504c6fab88bdc219c0b746/FLAGfcb310bd7 [2024-11-27 20:18:35,944 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef469ef5-0aa9-4472-9f4e-0a94fdca4c28/bin/uautomizer-verify-aQ6SnzHsRB/data/82ba9e0ab/f90daa79b1504c6fab88bdc219c0b746 [2024-11-27 20:18:35,948 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-27 20:18:35,950 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-27 20:18:35,953 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-27 20:18:35,953 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-27 20:18:35,958 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-27 20:18:35,959 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 08:18:35" (1/1) ... [2024-11-27 20:18:35,960 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c0f767a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:18:35, skipping insertion in model container [2024-11-27 20:18:35,960 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 08:18:35" (1/1) ... [2024-11-27 20:18:36,090 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-27 20:18:37,343 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef469ef5-0aa9-4472-9f4e-0a94fdca4c28/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ppp--ppp_async.ko-entry_point.cil.out.i[162928,162941] [2024-11-27 20:18:38,012 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 20:18:38,039 INFO L200 MainTranslator]: Completed pre-run [2024-11-27 20:18:38,207 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; bts %1,%0": "+m" (*((long volatile *)addr)): "Ir" (nr): "memory"); [5282] [2024-11-27 20:18:38,210 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; btr %1,%0": "+m" (*((long volatile *)addr)): "Ir" (nr)); [5289] [2024-11-27 20:18:38,212 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; bts %2, %0; setc %1": "+m" (*addr), "=qm" (c): "Ir" (nr): "memory"); [5297-5298] [2024-11-27 20:18:38,214 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; btr %2, %0; setc %1": "+m" (*addr), "=qm" (c): "Ir" (nr): "memory"); [5306-5307] [2024-11-27 20:18:38,215 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("bswapl %0": "=r" (val): "0" (val)); [5320] [2024-11-27 20:18:38,221 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; incl %0": "+m" (v->counter)); [5383] [2024-11-27 20:18:38,223 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; decl %0; sete %1": "+m" (v->counter), "=qm" (c): : "memory"); [5391-5392] [2024-11-27 20:18:38,252 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef469ef5-0aa9-4472-9f4e-0a94fdca4c28/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ppp--ppp_async.ko-entry_point.cil.out.i[162928,162941] [2024-11-27 20:18:38,294 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_1": "=a" (__ret_pu): "0" (__pu_val), "c" (p): "ebx"); [5963] [2024-11-27 20:18:38,295 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_2": "=a" (__ret_pu): "0" (__pu_val), "c" (p): "ebx"); [5966] [2024-11-27 20:18:38,298 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_4": "=a" (__ret_pu): "0" (__pu_val), "c" (p): "ebx"); [5969] [2024-11-27 20:18:38,299 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_8": "=a" (__ret_pu): "0" (__pu_val), "c" (p): "ebx"); [5972] [2024-11-27 20:18:38,299 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_X": "=a" (__ret_pu): "0" (__pu_val), "c" (p): "ebx"); [5975] [2024-11-27 20:18:38,300 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_1": "=a" (__ret_pu___0): "0" (__pu_val___0), "c" (p): "ebx"); [5991-5992] [2024-11-27 20:18:38,300 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_2": "=a" (__ret_pu___0): "0" (__pu_val___0), "c" (p): "ebx"); [5995-5996] [2024-11-27 20:18:38,300 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_4": "=a" (__ret_pu___0): "0" (__pu_val___0), "c" (p): "ebx"); [5999-6000] [2024-11-27 20:18:38,300 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_8": "=a" (__ret_pu___0): "0" (__pu_val___0), "c" (p): "ebx"); [6003-6004] [2024-11-27 20:18:38,301 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_X": "=a" (__ret_pu___0): "0" (__pu_val___0), "c" (p): "ebx"); [6007-6008] [2024-11-27 20:18:38,302 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_1": "=a" (__ret_pu___1): "0" (__pu_val___1), "c" (p): "ebx"); [6031-6032] [2024-11-27 20:18:38,304 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_2": "=a" (__ret_pu___1): "0" (__pu_val___1), "c" (p): "ebx"); [6035-6036] [2024-11-27 20:18:38,305 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_4": "=a" (__ret_pu___1): "0" (__pu_val___1), "c" (p): "ebx"); [6039-6040] [2024-11-27 20:18:38,305 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_8": "=a" (__ret_pu___1): "0" (__pu_val___1), "c" (p): "ebx"); [6043-6044] [2024-11-27 20:18:38,306 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_X": "=a" (__ret_pu___1): "0" (__pu_val___1), "c" (p): "ebx"); [6047-6048] [2024-11-27 20:18:38,313 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_1": "=a" (__ret_pu): "0" (__pu_val), "c" (p): "ebx"); [6176] [2024-11-27 20:18:38,313 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_2": "=a" (__ret_pu): "0" (__pu_val), "c" (p): "ebx"); [6179] [2024-11-27 20:18:38,314 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_4": "=a" (__ret_pu): "0" (__pu_val), "c" (p): "ebx"); [6182] [2024-11-27 20:18:38,314 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_8": "=a" (__ret_pu): "0" (__pu_val), "c" (p): "ebx"); [6185] [2024-11-27 20:18:38,314 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_X": "=a" (__ret_pu): "0" (__pu_val), "c" (p): "ebx"); [6188] [2024-11-27 20:18:38,315 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __get_user_%P3": "=a" (__ret_gu), "=r" (__val_gu): "0" (p), "i" (4UL)); [6200-6201] [2024-11-27 20:18:38,316 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_1": "=a" (__ret_pu___0): "0" (__pu_val___0), "c" ((u32 *)argp): "ebx"); [6218-6219] [2024-11-27 20:18:38,319 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_2": "=a" (__ret_pu___0): "0" (__pu_val___0), "c" ((u32 *)argp): "ebx"); [6222-6223] [2024-11-27 20:18:38,320 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_4": "=a" (__ret_pu___0): "0" (__pu_val___0), "c" ((u32 *)argp): "ebx"); [6226-6227] [2024-11-27 20:18:38,320 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_8": "=a" (__ret_pu___0): "0" (__pu_val___0), "c" ((u32 *)argp): "ebx"); [6230-6231] [2024-11-27 20:18:38,320 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_X": "=a" (__ret_pu___0): "0" (__pu_val___0), "c" ((u32 *)argp): "ebx"); [6234-6235] [2024-11-27 20:18:38,321 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __get_user_%P3": "=a" (__ret_gu___0), "=r" (__val_gu___0): "0" ((u32 *)argp), "i" (4UL)); [6247-6248] [2024-11-27 20:18:38,322 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_1": "=a" (__ret_pu___1): "0" (__pu_val___1), "c" ((u32 *)argp): "ebx"); [6261-6262] [2024-11-27 20:18:38,323 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_2": "=a" (__ret_pu___1): "0" (__pu_val___1), "c" ((u32 *)argp): "ebx"); [6265-6266] [2024-11-27 20:18:38,323 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_4": "=a" (__ret_pu___1): "0" (__pu_val___1), "c" ((u32 *)argp): "ebx"); [6269-6270] [2024-11-27 20:18:38,323 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_8": "=a" (__ret_pu___1): "0" (__pu_val___1), "c" ((u32 *)argp): "ebx"); [6273-6274] [2024-11-27 20:18:38,324 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_X": "=a" (__ret_pu___1): "0" (__pu_val___1), "c" ((u32 *)argp): "ebx"); [6277-6278] [2024-11-27 20:18:38,324 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __get_user_%P3": "=a" (__ret_gu___1), "=r" (__val_gu___1): "0" ((u32 *)argp), "i" (4UL)); [6290-6291] [2024-11-27 20:18:38,328 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_1": "=a" (__ret_pu___2): "0" (__pu_val___2), "c" (p): "ebx"); [6328-6329] [2024-11-27 20:18:38,329 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_2": "=a" (__ret_pu___2): "0" (__pu_val___2), "c" (p): "ebx"); [6332-6333] [2024-11-27 20:18:38,330 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_4": "=a" (__ret_pu___2): "0" (__pu_val___2), "c" (p): "ebx"); [6336-6337] [2024-11-27 20:18:38,331 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_8": "=a" (__ret_pu___2): "0" (__pu_val___2), "c" (p): "ebx"); [6340-6341] [2024-11-27 20:18:38,331 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_X": "=a" (__ret_pu___2): "0" (__pu_val___2), "c" (p): "ebx"); [6344-6345] [2024-11-27 20:18:38,332 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __get_user_%P3": "=a" (__ret_gu___2), "=r" (__val_gu___2): "0" (p), "i" (4UL)); [6357-6358] [2024-11-27 20:18:38,474 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 20:18:38,626 INFO L204 MainTranslator]: Completed translation [2024-11-27 20:18:38,628 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:18:38 WrapperNode [2024-11-27 20:18:38,629 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-27 20:18:38,631 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-27 20:18:38,631 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-27 20:18:38,632 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-27 20:18:38,643 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:18:38" (1/1) ... [2024-11-27 20:18:38,714 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:18:38" (1/1) ... [2024-11-27 20:18:38,867 INFO L138 Inliner]: procedures = 180, calls = 596, calls flagged for inlining = 99, calls inlined = 93, statements flattened = 2727 [2024-11-27 20:18:38,867 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-27 20:18:38,868 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-27 20:18:38,868 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-27 20:18:38,870 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-27 20:18:38,882 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:18:38" (1/1) ... [2024-11-27 20:18:38,883 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:18:38" (1/1) ... [2024-11-27 20:18:38,910 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:18:38" (1/1) ... [2024-11-27 20:18:39,449 INFO L175 MemorySlicer]: Split 317 memory accesses to 7 slices as follows [2, 1, 20, 229, 28, 13, 24]. 72 percent of accesses are in the largest equivalence class. The 23 initializations are split as follows [2, 0, 15, 6, 0, 0, 0]. The 152 writes are split as follows [0, 0, 2, 100, 13, 13, 24]. [2024-11-27 20:18:39,449 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:18:38" (1/1) ... [2024-11-27 20:18:39,449 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:18:38" (1/1) ... [2024-11-27 20:18:39,567 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:18:38" (1/1) ... [2024-11-27 20:18:39,573 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:18:38" (1/1) ... [2024-11-27 20:18:39,606 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:18:38" (1/1) ... [2024-11-27 20:18:39,639 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:18:38" (1/1) ... [2024-11-27 20:18:39,656 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:18:38" (1/1) ... [2024-11-27 20:18:39,697 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-27 20:18:39,700 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-27 20:18:39,700 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-27 20:18:39,700 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-27 20:18:39,702 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:18:38" (1/1) ... [2024-11-27 20:18:39,713 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 20:18:39,731 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef469ef5-0aa9-4472-9f4e-0a94fdca4c28/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:18:39,751 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef469ef5-0aa9-4472-9f4e-0a94fdca4c28/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-27 20:18:39,758 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef469ef5-0aa9-4472-9f4e-0a94fdca4c28/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-27 20:18:39,796 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2024-11-27 20:18:39,796 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2024-11-27 20:18:39,796 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-11-27 20:18:39,796 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-11-27 20:18:39,796 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-11-27 20:18:39,796 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-11-27 20:18:39,796 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2024-11-27 20:18:39,797 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2024-11-27 20:18:39,797 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2024-11-27 20:18:39,797 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_async_push [2024-11-27 20:18:39,797 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_async_push [2024-11-27 20:18:39,797 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2024-11-27 20:18:39,797 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2024-11-27 20:18:39,797 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#0 [2024-11-27 20:18:39,797 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#1 [2024-11-27 20:18:39,797 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#2 [2024-11-27 20:18:39,797 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#3 [2024-11-27 20:18:39,797 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#4 [2024-11-27 20:18:39,797 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#5 [2024-11-27 20:18:39,798 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#6 [2024-11-27 20:18:39,798 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-11-27 20:18:39,798 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-11-27 20:18:39,798 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-11-27 20:18:39,798 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-11-27 20:18:39,798 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-11-27 20:18:39,798 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2024-11-27 20:18:39,798 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2024-11-27 20:18:39,798 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2024-11-27 20:18:39,798 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2024-11-27 20:18:39,798 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-27 20:18:39,798 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-27 20:18:39,799 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-27 20:18:39,799 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-27 20:18:39,799 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-27 20:18:39,799 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-27 20:18:39,799 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-11-27 20:18:39,799 INFO L130 BoogieDeclarations]: Found specification of procedure crc_ccitt_byte [2024-11-27 20:18:39,799 INFO L138 BoogieDeclarations]: Found implementation of procedure crc_ccitt_byte [2024-11-27 20:18:39,799 INFO L130 BoogieDeclarations]: Found specification of procedure ap_put [2024-11-27 20:18:39,799 INFO L138 BoogieDeclarations]: Found implementation of procedure ap_put [2024-11-27 20:18:39,799 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_output_wakeup [2024-11-27 20:18:39,799 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_output_wakeup [2024-11-27 20:18:39,799 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#0 [2024-11-27 20:18:39,800 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#1 [2024-11-27 20:18:39,800 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#2 [2024-11-27 20:18:39,800 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#3 [2024-11-27 20:18:39,800 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#4 [2024-11-27 20:18:39,800 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#5 [2024-11-27 20:18:39,800 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#6 [2024-11-27 20:18:39,801 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#0 [2024-11-27 20:18:39,801 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#1 [2024-11-27 20:18:39,802 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#2 [2024-11-27 20:18:39,802 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#3 [2024-11-27 20:18:39,802 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#4 [2024-11-27 20:18:39,802 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#5 [2024-11-27 20:18:39,802 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#6 [2024-11-27 20:18:39,802 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free [2024-11-27 20:18:39,803 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free [2024-11-27 20:18:39,803 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2024-11-27 20:18:39,804 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2024-11-27 20:18:39,804 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_asynctty_hangup [2024-11-27 20:18:39,804 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_asynctty_hangup [2024-11-27 20:18:39,804 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2024-11-27 20:18:39,804 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2024-11-27 20:18:39,804 INFO L130 BoogieDeclarations]: Found specification of procedure skb_trim [2024-11-27 20:18:39,805 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_trim [2024-11-27 20:18:39,805 INFO L130 BoogieDeclarations]: Found specification of procedure get_unaligned_be16 [2024-11-27 20:18:39,805 INFO L138 BoogieDeclarations]: Found implementation of procedure get_unaligned_be16 [2024-11-27 20:18:39,805 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_alloc [2024-11-27 20:18:39,805 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_alloc [2024-11-27 20:18:39,805 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2024-11-27 20:18:39,805 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2024-11-27 20:18:39,805 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-27 20:18:39,805 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-27 20:18:39,805 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-27 20:18:39,806 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-27 20:18:39,806 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-27 20:18:39,806 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-27 20:18:39,806 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-11-27 20:18:39,806 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2024-11-27 20:18:39,806 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2024-11-27 20:18:39,806 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2024-11-27 20:18:39,806 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2024-11-27 20:18:39,806 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2024-11-27 20:18:39,807 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2024-11-27 20:18:39,807 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-27 20:18:39,807 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-27 20:18:39,807 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_asynctty_close [2024-11-27 20:18:39,807 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_asynctty_close [2024-11-27 20:18:39,807 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-27 20:18:39,807 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_asynctty_poll [2024-11-27 20:18:39,807 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_asynctty_poll [2024-11-27 20:18:39,807 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2024-11-27 20:18:39,807 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2024-11-27 20:18:39,807 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2024-11-27 20:18:39,807 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2024-11-27 20:18:39,807 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-27 20:18:39,808 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-27 20:18:39,808 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-27 20:18:39,808 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-27 20:18:39,808 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-27 20:18:39,808 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-27 20:18:39,808 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-27 20:18:39,808 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-11-27 20:18:39,808 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2024-11-27 20:18:39,808 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2024-11-27 20:18:39,808 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2024-11-27 20:18:39,808 INFO L130 BoogieDeclarations]: Found specification of procedure ap_get [2024-11-27 20:18:39,808 INFO L138 BoogieDeclarations]: Found implementation of procedure ap_get [2024-11-27 20:18:39,808 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_schedule [2024-11-27 20:18:39,808 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_schedule [2024-11-27 20:18:39,808 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-27 20:18:39,809 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-27 20:18:39,809 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-27 20:18:39,809 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-27 20:18:39,809 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-27 20:18:39,809 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-11-27 20:18:39,809 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2024-11-27 20:18:39,809 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_remove [2024-11-27 20:18:39,809 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_remove [2024-11-27 20:18:39,809 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec_and_test [2024-11-27 20:18:39,809 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec_and_test [2024-11-27 20:18:39,809 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-27 20:18:39,809 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-27 20:18:39,809 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-27 20:18:39,809 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-27 20:18:39,809 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-27 20:18:39,809 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-11-27 20:18:39,810 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-11-27 20:18:39,810 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2024-11-27 20:18:39,810 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2024-11-27 20:18:39,810 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2024-11-27 20:18:39,810 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2024-11-27 20:18:39,810 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2024-11-27 20:18:39,810 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2024-11-27 20:18:39,813 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2024-11-27 20:18:39,813 INFO L130 BoogieDeclarations]: Found specification of procedure async_lcp_peek [2024-11-27 20:18:39,813 INFO L138 BoogieDeclarations]: Found implementation of procedure async_lcp_peek [2024-11-27 20:18:39,814 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-27 20:18:39,814 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-27 20:18:39,814 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-27 20:18:39,814 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-27 20:18:39,814 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-27 20:18:39,814 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-27 20:18:39,814 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-27 20:18:39,814 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_bh [2024-11-27 20:18:39,814 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_bh [2024-11-27 20:18:39,814 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#0 [2024-11-27 20:18:39,814 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#1 [2024-11-27 20:18:39,814 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#2 [2024-11-27 20:18:39,814 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#3 [2024-11-27 20:18:39,815 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#4 [2024-11-27 20:18:39,815 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#5 [2024-11-27 20:18:39,815 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#6 [2024-11-27 20:18:39,815 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2024-11-27 20:18:39,815 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2024-11-27 20:18:39,815 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2024-11-27 20:18:39,815 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2024-11-27 20:18:39,815 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-27 20:18:39,815 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-27 20:18:39,815 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_asynctty_ioctl [2024-11-27 20:18:39,815 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_asynctty_ioctl [2024-11-27 20:18:39,815 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_bh [2024-11-27 20:18:39,815 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_bh [2024-11-27 20:18:40,601 INFO L234 CfgBuilder]: Building ICFG [2024-11-27 20:18:40,606 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-27 20:18:41,507 INFO L727 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2024-11-27 20:18:53,035 INFO L? ?]: Removed 1325 outVars from TransFormulas that were not future-live. [2024-11-27 20:18:53,035 INFO L283 CfgBuilder]: Performing block encoding [2024-11-27 20:18:53,095 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-27 20:18:53,096 INFO L312 CfgBuilder]: Removed 6 assume(true) statements. [2024-11-27 20:18:53,096 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 08:18:53 BoogieIcfgContainer [2024-11-27 20:18:53,096 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-27 20:18:53,102 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-27 20:18:53,102 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-27 20:18:53,116 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-27 20:18:53,116 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.11 08:18:35" (1/3) ... [2024-11-27 20:18:53,117 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4fb3136 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 08:18:53, skipping insertion in model container [2024-11-27 20:18:53,117 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:18:38" (2/3) ... [2024-11-27 20:18:53,119 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4fb3136 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 08:18:53, skipping insertion in model container [2024-11-27 20:18:53,120 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 08:18:53" (3/3) ... [2024-11-27 20:18:53,123 INFO L128 eAbstractionObserver]: Analyzing ICFG 205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ppp--ppp_async.ko-entry_point.cil.out.i [2024-11-27 20:18:53,145 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-27 20:18:53,148 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ppp--ppp_async.ko-entry_point.cil.out.i that has 45 procedures, 894 locations, 1 initial locations, 17 loop locations, and 1 error locations. [2024-11-27 20:18:53,279 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-27 20:18:53,299 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;@6a5c27a2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-27 20:18:53,299 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-27 20:18:53,311 INFO L276 IsEmpty]: Start isEmpty. Operand has 863 states, 705 states have (on average 1.4567375886524823) internal successors, (1027), 719 states have internal predecessors, (1027), 119 states have call successors, (119), 38 states have call predecessors, (119), 37 states have return successors, (115), 115 states have call predecessors, (115), 115 states have call successors, (115) [2024-11-27 20:18:53,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-11-27 20:18:53,331 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:18:53,332 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:18:53,333 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:18:53,341 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:18:53,342 INFO L85 PathProgramCache]: Analyzing trace with hash 59603649, now seen corresponding path program 1 times [2024-11-27 20:18:53,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:18:53,353 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1255281448] [2024-11-27 20:18:53,354 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:18:53,354 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:18:54,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:18:54,688 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2024-11-27 20:18:54,689 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:18:54,690 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1255281448] [2024-11-27 20:18:54,691 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1255281448] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:18:54,691 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:18:54,692 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 20:18:54,694 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [108916005] [2024-11-27 20:18:54,695 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:18:54,701 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 20:18:54,702 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:18:54,727 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 20:18:54,729 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:18:54,736 INFO L87 Difference]: Start difference. First operand has 863 states, 705 states have (on average 1.4567375886524823) internal successors, (1027), 719 states have internal predecessors, (1027), 119 states have call successors, (119), 38 states have call predecessors, (119), 37 states have return successors, (115), 115 states have call predecessors, (115), 115 states have call successors, (115) Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2024-11-27 20:18:58,770 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 20:18:59,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:18:59,108 INFO L93 Difference]: Finished difference Result 2530 states and 3761 transitions. [2024-11-27 20:18:59,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:18:59,111 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 78 [2024-11-27 20:18:59,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:18:59,159 INFO L225 Difference]: With dead ends: 2530 [2024-11-27 20:18:59,160 INFO L226 Difference]: Without dead ends: 1656 [2024-11-27 20:18:59,170 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:18:59,177 INFO L435 NwaCegarLoop]: 1252 mSDtfsCounter, 1176 mSDsluCounter, 1224 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1176 SdHoareTripleChecker+Valid, 2476 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2024-11-27 20:18:59,178 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1176 Valid, 2476 Invalid, 15 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 11 Invalid, 1 Unknown, 0 Unchecked, 4.1s Time] [2024-11-27 20:18:59,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1656 states. [2024-11-27 20:18:59,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1656 to 1656. [2024-11-27 20:18:59,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1656 states, 1368 states have (on average 1.4371345029239766) internal successors, (1966), 1384 states have internal predecessors, (1966), 215 states have call successors, (215), 73 states have call predecessors, (215), 72 states have return successors, (214), 214 states have call predecessors, (214), 214 states have call successors, (214) [2024-11-27 20:18:59,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1656 states to 1656 states and 2395 transitions. [2024-11-27 20:18:59,541 INFO L78 Accepts]: Start accepts. Automaton has 1656 states and 2395 transitions. Word has length 78 [2024-11-27 20:18:59,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:18:59,542 INFO L471 AbstractCegarLoop]: Abstraction has 1656 states and 2395 transitions. [2024-11-27 20:18:59,542 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2024-11-27 20:18:59,544 INFO L276 IsEmpty]: Start isEmpty. Operand 1656 states and 2395 transitions. [2024-11-27 20:18:59,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-11-27 20:18:59,552 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:18:59,553 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:18:59,553 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-27 20:18:59,553 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:18:59,554 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:18:59,554 INFO L85 PathProgramCache]: Analyzing trace with hash 777731715, now seen corresponding path program 1 times [2024-11-27 20:18:59,554 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:18:59,554 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [176812222] [2024-11-27 20:18:59,554 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:18:59,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:18:59,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:19:00,386 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2024-11-27 20:19:00,387 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:19:00,387 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [176812222] [2024-11-27 20:19:00,387 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [176812222] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:19:00,387 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:19:00,387 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-27 20:19:00,388 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [450327230] [2024-11-27 20:19:00,388 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:19:00,389 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 20:19:00,390 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:19:00,390 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 20:19:00,390 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-27 20:19:00,391 INFO L87 Difference]: Start difference. First operand 1656 states and 2395 transitions. Second operand has 5 states, 5 states have (on average 6.8) internal successors, (34), 5 states have internal predecessors, (34), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2024-11-27 20:19:00,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:19:00,814 INFO L93 Difference]: Finished difference Result 4917 states and 7147 transitions. [2024-11-27 20:19:00,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 20:19:00,815 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.8) internal successors, (34), 5 states have internal predecessors, (34), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 82 [2024-11-27 20:19:00,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:19:00,853 INFO L225 Difference]: With dead ends: 4917 [2024-11-27 20:19:00,854 INFO L226 Difference]: Without dead ends: 3277 [2024-11-27 20:19:00,865 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-27 20:19:00,867 INFO L435 NwaCegarLoop]: 1228 mSDtfsCounter, 1208 mSDsluCounter, 3646 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1208 SdHoareTripleChecker+Valid, 4874 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 20:19:00,867 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1208 Valid, 4874 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 20:19:00,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3277 states. [2024-11-27 20:19:01,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3277 to 3271. [2024-11-27 20:19:01,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3271 states, 2708 states have (on average 1.4387001477104875) internal successors, (3896), 2740 states have internal predecessors, (3896), 418 states have call successors, (418), 145 states have call predecessors, (418), 144 states have return successors, (447), 417 states have call predecessors, (447), 417 states have call successors, (447) [2024-11-27 20:19:01,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3271 states to 3271 states and 4761 transitions. [2024-11-27 20:19:01,136 INFO L78 Accepts]: Start accepts. Automaton has 3271 states and 4761 transitions. Word has length 82 [2024-11-27 20:19:01,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:19:01,138 INFO L471 AbstractCegarLoop]: Abstraction has 3271 states and 4761 transitions. [2024-11-27 20:19:01,138 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.8) internal successors, (34), 5 states have internal predecessors, (34), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2024-11-27 20:19:01,139 INFO L276 IsEmpty]: Start isEmpty. Operand 3271 states and 4761 transitions. [2024-11-27 20:19:01,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-11-27 20:19:01,163 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:19:01,163 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:19:01,164 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-27 20:19:01,165 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:19:01,165 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:19:01,165 INFO L85 PathProgramCache]: Analyzing trace with hash -242979804, now seen corresponding path program 1 times [2024-11-27 20:19:01,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:19:01,166 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [663767804] [2024-11-27 20:19:01,166 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:19:01,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:19:01,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:19:01,645 INFO L134 CoverageAnalysis]: Checked inductivity of 191 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 189 trivial. 0 not checked. [2024-11-27 20:19:01,647 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:19:01,648 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [663767804] [2024-11-27 20:19:01,648 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [663767804] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:19:01,648 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:19:01,648 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 20:19:01,648 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [718706842] [2024-11-27 20:19:01,648 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:19:01,649 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 20:19:01,649 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:19:01,650 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 20:19:01,650 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:19:01,650 INFO L87 Difference]: Start difference. First operand 3271 states and 4761 transitions. Second operand has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-27 20:19:02,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:19:02,091 INFO L93 Difference]: Finished difference Result 8156 states and 11874 transitions. [2024-11-27 20:19:02,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:19:02,092 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 137 [2024-11-27 20:19:02,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:19:02,139 INFO L225 Difference]: With dead ends: 8156 [2024-11-27 20:19:02,139 INFO L226 Difference]: Without dead ends: 4909 [2024-11-27 20:19:02,154 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:19:02,158 INFO L435 NwaCegarLoop]: 1240 mSDtfsCounter, 649 mSDsluCounter, 1158 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 649 SdHoareTripleChecker+Valid, 2398 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 20:19:02,159 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [649 Valid, 2398 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 20:19:02,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4909 states. [2024-11-27 20:19:02,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4909 to 4897. [2024-11-27 20:19:02,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4897 states, 4072 states have (on average 1.4447445972495088) internal successors, (5883), 4115 states have internal predecessors, (5883), 605 states have call successors, (605), 220 states have call predecessors, (605), 219 states have return successors, (644), 601 states have call predecessors, (644), 604 states have call successors, (644) [2024-11-27 20:19:02,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4897 states to 4897 states and 7132 transitions. [2024-11-27 20:19:02,566 INFO L78 Accepts]: Start accepts. Automaton has 4897 states and 7132 transitions. Word has length 137 [2024-11-27 20:19:02,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:19:02,568 INFO L471 AbstractCegarLoop]: Abstraction has 4897 states and 7132 transitions. [2024-11-27 20:19:02,569 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-27 20:19:02,569 INFO L276 IsEmpty]: Start isEmpty. Operand 4897 states and 7132 transitions. [2024-11-27 20:19:02,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2024-11-27 20:19:02,590 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:19:02,591 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:19:02,591 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-27 20:19:02,591 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:19:02,592 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:19:02,592 INFO L85 PathProgramCache]: Analyzing trace with hash 203576361, now seen corresponding path program 1 times [2024-11-27 20:19:02,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:19:02,592 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1898945487] [2024-11-27 20:19:02,592 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:19:02,592 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:19:02,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:19:03,035 INFO L134 CoverageAnalysis]: Checked inductivity of 201 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 198 trivial. 0 not checked. [2024-11-27 20:19:03,038 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:19:03,038 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1898945487] [2024-11-27 20:19:03,038 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1898945487] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:19:03,038 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:19:03,039 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 20:19:03,039 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [722306045] [2024-11-27 20:19:03,039 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:19:03,039 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 20:19:03,040 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:19:03,043 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 20:19:03,043 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:19:03,044 INFO L87 Difference]: Start difference. First operand 4897 states and 7132 transitions. Second operand has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2024-11-27 20:19:03,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:19:03,433 INFO L93 Difference]: Finished difference Result 11990 states and 17348 transitions. [2024-11-27 20:19:03,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:19:03,434 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 167 [2024-11-27 20:19:03,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:19:03,487 INFO L225 Difference]: With dead ends: 11990 [2024-11-27 20:19:03,488 INFO L226 Difference]: Without dead ends: 7117 [2024-11-27 20:19:03,505 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:19:03,508 INFO L435 NwaCegarLoop]: 1828 mSDtfsCounter, 786 mSDsluCounter, 1188 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 786 SdHoareTripleChecker+Valid, 3016 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 20:19:03,508 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [786 Valid, 3016 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 20:19:03,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7117 states. [2024-11-27 20:19:03,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7117 to 7103. [2024-11-27 20:19:03,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7103 states, 5908 states have (on average 1.4341570751523358) internal successors, (8473), 5976 states have internal predecessors, (8473), 847 states have call successors, (847), 348 states have call predecessors, (847), 347 states have return successors, (908), 842 states have call predecessors, (908), 846 states have call successors, (908) [2024-11-27 20:19:03,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7103 states to 7103 states and 10228 transitions. [2024-11-27 20:19:03,922 INFO L78 Accepts]: Start accepts. Automaton has 7103 states and 10228 transitions. Word has length 167 [2024-11-27 20:19:03,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:19:03,923 INFO L471 AbstractCegarLoop]: Abstraction has 7103 states and 10228 transitions. [2024-11-27 20:19:03,923 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2024-11-27 20:19:03,924 INFO L276 IsEmpty]: Start isEmpty. Operand 7103 states and 10228 transitions. [2024-11-27 20:19:03,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-11-27 20:19:03,941 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:19:03,941 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:19:03,941 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-27 20:19:03,942 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:19:03,943 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:19:03,943 INFO L85 PathProgramCache]: Analyzing trace with hash -1328529767, now seen corresponding path program 1 times [2024-11-27 20:19:03,943 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:19:03,943 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [329688017] [2024-11-27 20:19:03,943 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:19:03,943 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:19:04,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:19:04,486 INFO L134 CoverageAnalysis]: Checked inductivity of 282 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 273 trivial. 0 not checked. [2024-11-27 20:19:04,486 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:19:04,486 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [329688017] [2024-11-27 20:19:04,486 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [329688017] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:19:04,486 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:19:04,487 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 20:19:04,487 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [807591744] [2024-11-27 20:19:04,487 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:19:04,488 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 20:19:04,488 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:19:04,489 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 20:19:04,489 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:19:04,489 INFO L87 Difference]: Start difference. First operand 7103 states and 10228 transitions. Second operand has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 3 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-27 20:19:08,507 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 20:19:09,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:19:09,040 INFO L93 Difference]: Finished difference Result 17151 states and 24652 transitions. [2024-11-27 20:19:09,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:19:09,041 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 3 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 160 [2024-11-27 20:19:09,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:19:09,116 INFO L225 Difference]: With dead ends: 17151 [2024-11-27 20:19:09,116 INFO L226 Difference]: Without dead ends: 10083 [2024-11-27 20:19:09,143 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:19:09,143 INFO L435 NwaCegarLoop]: 1276 mSDtfsCounter, 855 mSDsluCounter, 1130 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 20 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 855 SdHoareTripleChecker+Valid, 2406 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2024-11-27 20:19:09,144 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [855 Valid, 2406 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 44 Invalid, 1 Unknown, 0 Unchecked, 4.2s Time] [2024-11-27 20:19:09,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10083 states. [2024-11-27 20:19:09,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10083 to 10059. [2024-11-27 20:19:09,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10059 states, 8342 states have (on average 1.4266362982498202) internal successors, (11901), 8436 states have internal predecessors, (11901), 1175 states have call successors, (1175), 542 states have call predecessors, (1175), 541 states have return successors, (1264), 1168 states have call predecessors, (1264), 1174 states have call successors, (1264) [2024-11-27 20:19:09,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10059 states to 10059 states and 14340 transitions. [2024-11-27 20:19:09,809 INFO L78 Accepts]: Start accepts. Automaton has 10059 states and 14340 transitions. Word has length 160 [2024-11-27 20:19:09,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:19:09,810 INFO L471 AbstractCegarLoop]: Abstraction has 10059 states and 14340 transitions. [2024-11-27 20:19:09,810 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 3 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-27 20:19:09,810 INFO L276 IsEmpty]: Start isEmpty. Operand 10059 states and 14340 transitions. [2024-11-27 20:19:09,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2024-11-27 20:19:09,830 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:19:09,831 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:19:09,831 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-27 20:19:09,831 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:19:09,831 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:19:09,832 INFO L85 PathProgramCache]: Analyzing trace with hash -1211068245, now seen corresponding path program 1 times [2024-11-27 20:19:09,832 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:19:09,832 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1028767322] [2024-11-27 20:19:09,832 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:19:09,832 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:19:10,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:19:10,242 INFO L134 CoverageAnalysis]: Checked inductivity of 282 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 269 trivial. 0 not checked. [2024-11-27 20:19:10,242 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:19:10,242 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1028767322] [2024-11-27 20:19:10,243 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1028767322] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:19:10,243 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:19:10,243 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 20:19:10,243 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1480313417] [2024-11-27 20:19:10,243 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:19:10,244 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 20:19:10,244 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:19:10,245 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 20:19:10,245 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:19:10,245 INFO L87 Difference]: Start difference. First operand 10059 states and 14340 transitions. Second operand has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2024-11-27 20:19:10,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:19:10,677 INFO L93 Difference]: Finished difference Result 15116 states and 21695 transitions. [2024-11-27 20:19:10,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:19:10,678 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 165 [2024-11-27 20:19:10,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:19:10,773 INFO L225 Difference]: With dead ends: 15116 [2024-11-27 20:19:10,773 INFO L226 Difference]: Without dead ends: 10079 [2024-11-27 20:19:10,802 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:19:10,807 INFO L435 NwaCegarLoop]: 1230 mSDtfsCounter, 3 mSDsluCounter, 1223 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 2453 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 20:19:10,807 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 2453 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 20:19:10,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10079 states. [2024-11-27 20:19:11,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10079 to 10079. [2024-11-27 20:19:11,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10079 states, 8362 states have (on average 1.4256158813680937) internal successors, (11921), 8456 states have internal predecessors, (11921), 1175 states have call successors, (1175), 542 states have call predecessors, (1175), 541 states have return successors, (1264), 1168 states have call predecessors, (1264), 1174 states have call successors, (1264) [2024-11-27 20:19:11,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10079 states to 10079 states and 14360 transitions. [2024-11-27 20:19:11,464 INFO L78 Accepts]: Start accepts. Automaton has 10079 states and 14360 transitions. Word has length 165 [2024-11-27 20:19:11,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:19:11,468 INFO L471 AbstractCegarLoop]: Abstraction has 10079 states and 14360 transitions. [2024-11-27 20:19:11,469 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2024-11-27 20:19:11,469 INFO L276 IsEmpty]: Start isEmpty. Operand 10079 states and 14360 transitions. [2024-11-27 20:19:11,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2024-11-27 20:19:11,490 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:19:11,490 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:19:11,490 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-27 20:19:11,491 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:19:11,491 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:19:11,491 INFO L85 PathProgramCache]: Analyzing trace with hash -581951830, now seen corresponding path program 1 times [2024-11-27 20:19:11,492 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:19:11,492 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1101849058] [2024-11-27 20:19:11,492 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:19:11,492 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:19:11,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:19:12,949 INFO L134 CoverageAnalysis]: Checked inductivity of 282 backedges. 8 proven. 6 refuted. 0 times theorem prover too weak. 268 trivial. 0 not checked. [2024-11-27 20:19:12,949 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:19:12,949 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1101849058] [2024-11-27 20:19:12,950 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1101849058] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:19:12,950 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1846426759] [2024-11-27 20:19:12,950 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:19:12,950 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:19:12,950 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef469ef5-0aa9-4472-9f4e-0a94fdca4c28/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:19:12,954 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef469ef5-0aa9-4472-9f4e-0a94fdca4c28/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:19:12,956 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef469ef5-0aa9-4472-9f4e-0a94fdca4c28/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-27 20:19:14,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:19:14,089 INFO L256 TraceCheckSpWp]: Trace formula consists of 1306 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-27 20:19:14,101 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:19:14,558 INFO L134 CoverageAnalysis]: Checked inductivity of 282 backedges. 88 proven. 5 refuted. 0 times theorem prover too weak. 189 trivial. 0 not checked. [2024-11-27 20:19:14,561 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:19:16,767 INFO L134 CoverageAnalysis]: Checked inductivity of 282 backedges. 12 proven. 1 refuted. 0 times theorem prover too weak. 269 trivial. 0 not checked. [2024-11-27 20:19:16,768 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1846426759] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:19:16,768 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 20:19:16,768 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 6, 6] total 15 [2024-11-27 20:19:16,768 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1357049860] [2024-11-27 20:19:16,769 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 20:19:16,769 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-27 20:19:16,770 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:19:16,770 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-27 20:19:16,771 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=151, Unknown=0, NotChecked=0, Total=210 [2024-11-27 20:19:16,771 INFO L87 Difference]: Start difference. First operand 10079 states and 14360 transitions. Second operand has 15 states, 15 states have (on average 11.466666666666667) internal successors, (172), 14 states have internal predecessors, (172), 9 states have call successors, (38), 7 states have call predecessors, (38), 7 states have return successors, (38), 9 states have call predecessors, (38), 8 states have call successors, (38) [2024-11-27 20:19:20,785 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 [] [2024-11-27 20:19:24,789 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 20:19:28,795 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 20:19:32,811 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 20:19:36,817 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 20:19:40,824 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 [] [2024-11-27 20:19:50,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:19:50,990 INFO L93 Difference]: Finished difference Result 28364 states and 40884 transitions. [2024-11-27 20:19:50,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-27 20:19:50,991 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 11.466666666666667) internal successors, (172), 14 states have internal predecessors, (172), 9 states have call successors, (38), 7 states have call predecessors, (38), 7 states have return successors, (38), 9 states have call predecessors, (38), 8 states have call successors, (38) Word has length 167 [2024-11-27 20:19:50,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:19:51,096 INFO L225 Difference]: With dead ends: 28364 [2024-11-27 20:19:51,096 INFO L226 Difference]: Without dead ends: 18320 [2024-11-27 20:19:51,140 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 363 GetRequests, 335 SyntacticMatches, 5 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 171 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=169, Invalid=431, Unknown=0, NotChecked=0, Total=600 [2024-11-27 20:19:51,140 INFO L435 NwaCegarLoop]: 1347 mSDtfsCounter, 3971 mSDsluCounter, 10307 mSDsCounter, 0 mSdLazyCounter, 4604 mSolverCounterSat, 690 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 31.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4115 SdHoareTripleChecker+Valid, 11654 SdHoareTripleChecker+Invalid, 5300 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 690 IncrementalHoareTripleChecker+Valid, 4604 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 32.9s IncrementalHoareTripleChecker+Time [2024-11-27 20:19:51,141 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4115 Valid, 11654 Invalid, 5300 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [690 Valid, 4604 Invalid, 6 Unknown, 0 Unchecked, 32.9s Time] [2024-11-27 20:19:51,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18320 states. [2024-11-27 20:19:51,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18320 to 17984. [2024-11-27 20:19:52,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17984 states, 14934 states have (on average 1.428686219365207) internal successors, (21336), 15134 states have internal predecessors, (21336), 2111 states have call successors, (2111), 913 states have call predecessors, (2111), 938 states have return successors, (2340), 2094 states have call predecessors, (2340), 2110 states have call successors, (2340) [2024-11-27 20:19:52,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17984 states to 17984 states and 25787 transitions. [2024-11-27 20:19:52,104 INFO L78 Accepts]: Start accepts. Automaton has 17984 states and 25787 transitions. Word has length 167 [2024-11-27 20:19:52,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:19:52,105 INFO L471 AbstractCegarLoop]: Abstraction has 17984 states and 25787 transitions. [2024-11-27 20:19:52,106 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 11.466666666666667) internal successors, (172), 14 states have internal predecessors, (172), 9 states have call successors, (38), 7 states have call predecessors, (38), 7 states have return successors, (38), 9 states have call predecessors, (38), 8 states have call successors, (38) [2024-11-27 20:19:52,106 INFO L276 IsEmpty]: Start isEmpty. Operand 17984 states and 25787 transitions. [2024-11-27 20:19:52,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2024-11-27 20:19:52,132 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:19:52,132 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:19:52,148 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef469ef5-0aa9-4472-9f4e-0a94fdca4c28/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-27 20:19:52,336 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef469ef5-0aa9-4472-9f4e-0a94fdca4c28/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2024-11-27 20:19:52,337 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:19:52,338 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:19:52,338 INFO L85 PathProgramCache]: Analyzing trace with hash -911605097, now seen corresponding path program 1 times [2024-11-27 20:19:52,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:19:52,338 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [853713598] [2024-11-27 20:19:52,338 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:19:52,338 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:19:52,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:19:53,091 INFO L134 CoverageAnalysis]: Checked inductivity of 334 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 316 trivial. 0 not checked. [2024-11-27 20:19:53,092 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:19:53,092 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [853713598] [2024-11-27 20:19:53,092 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [853713598] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:19:53,092 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:19:53,093 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-27 20:19:53,093 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [643376448] [2024-11-27 20:19:53,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:19:53,094 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 20:19:53,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:19:53,094 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 20:19:53,095 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 20:19:53,095 INFO L87 Difference]: Start difference. First operand 17984 states and 25787 transitions. Second operand has 4 states, 4 states have (on average 31.0) internal successors, (124), 4 states have internal predecessors, (124), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-27 20:19:57,111 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 [] [2024-11-27 20:19:58,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:19:58,153 INFO L93 Difference]: Finished difference Result 42003 states and 59996 transitions. [2024-11-27 20:19:58,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 20:19:58,154 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 31.0) internal successors, (124), 4 states have internal predecessors, (124), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 201 [2024-11-27 20:19:58,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:19:58,294 INFO L225 Difference]: With dead ends: 42003 [2024-11-27 20:19:58,295 INFO L226 Difference]: Without dead ends: 24054 [2024-11-27 20:19:58,350 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-27 20:19:58,350 INFO L435 NwaCegarLoop]: 2098 mSDtfsCounter, 870 mSDsluCounter, 3317 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 870 SdHoareTripleChecker+Valid, 5415 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2024-11-27 20:19:58,493 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [870 Valid, 5415 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 1 Unknown, 0 Unchecked, 4.1s Time] [2024-11-27 20:19:58,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24054 states. [2024-11-27 20:19:59,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24054 to 18008. [2024-11-27 20:19:59,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18008 states, 14958 states have (on average 1.4279983955074207) internal successors, (21360), 15158 states have internal predecessors, (21360), 2111 states have call successors, (2111), 913 states have call predecessors, (2111), 938 states have return successors, (2340), 2094 states have call predecessors, (2340), 2110 states have call successors, (2340) [2024-11-27 20:19:59,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18008 states to 18008 states and 25811 transitions. [2024-11-27 20:19:59,479 INFO L78 Accepts]: Start accepts. Automaton has 18008 states and 25811 transitions. Word has length 201 [2024-11-27 20:19:59,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:19:59,479 INFO L471 AbstractCegarLoop]: Abstraction has 18008 states and 25811 transitions. [2024-11-27 20:19:59,480 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.0) internal successors, (124), 4 states have internal predecessors, (124), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-27 20:19:59,480 INFO L276 IsEmpty]: Start isEmpty. Operand 18008 states and 25811 transitions. [2024-11-27 20:19:59,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2024-11-27 20:19:59,505 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:19:59,505 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:19:59,505 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-27 20:19:59,506 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:19:59,506 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:19:59,506 INFO L85 PathProgramCache]: Analyzing trace with hash 175438238, now seen corresponding path program 1 times [2024-11-27 20:19:59,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:19:59,506 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2081915704] [2024-11-27 20:19:59,507 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:19:59,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:19:59,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:20:00,028 INFO L134 CoverageAnalysis]: Checked inductivity of 334 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2024-11-27 20:20:00,029 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:20:00,029 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2081915704] [2024-11-27 20:20:00,029 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2081915704] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:20:00,029 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:20:00,029 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 20:20:00,029 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1217129845] [2024-11-27 20:20:00,029 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:20:00,030 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 20:20:00,030 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:20:00,031 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 20:20:00,031 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:20:00,031 INFO L87 Difference]: Start difference. First operand 18008 states and 25811 transitions. Second operand has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2024-11-27 20:20:00,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:20:00,618 INFO L93 Difference]: Finished difference Result 35993 states and 51601 transitions. [2024-11-27 20:20:00,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:20:00,619 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 214 [2024-11-27 20:20:00,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:20:00,718 INFO L225 Difference]: With dead ends: 35993 [2024-11-27 20:20:00,718 INFO L226 Difference]: Without dead ends: 18020 [2024-11-27 20:20:00,764 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:20:00,765 INFO L435 NwaCegarLoop]: 1230 mSDtfsCounter, 0 mSDsluCounter, 1224 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2454 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 20:20:00,765 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2454 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 20:20:00,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18020 states. [2024-11-27 20:20:01,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18020 to 18020. [2024-11-27 20:20:01,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18020 states, 14970 states have (on average 1.4276553106212424) internal successors, (21372), 15170 states have internal predecessors, (21372), 2111 states have call successors, (2111), 913 states have call predecessors, (2111), 938 states have return successors, (2340), 2094 states have call predecessors, (2340), 2110 states have call successors, (2340) [2024-11-27 20:20:01,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18020 states to 18020 states and 25823 transitions. [2024-11-27 20:20:01,721 INFO L78 Accepts]: Start accepts. Automaton has 18020 states and 25823 transitions. Word has length 214 [2024-11-27 20:20:01,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:20:01,722 INFO L471 AbstractCegarLoop]: Abstraction has 18020 states and 25823 transitions. [2024-11-27 20:20:01,722 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2024-11-27 20:20:01,723 INFO L276 IsEmpty]: Start isEmpty. Operand 18020 states and 25823 transitions. [2024-11-27 20:20:01,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2024-11-27 20:20:01,748 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:20:01,749 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:20:01,749 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-27 20:20:01,749 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:20:01,750 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:20:01,750 INFO L85 PathProgramCache]: Analyzing trace with hash 592834844, now seen corresponding path program 1 times [2024-11-27 20:20:01,750 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:20:01,750 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1354784784] [2024-11-27 20:20:01,750 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:20:01,750 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:20:02,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:20:02,850 INFO L134 CoverageAnalysis]: Checked inductivity of 334 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 301 trivial. 0 not checked. [2024-11-27 20:20:02,850 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:20:02,850 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1354784784] [2024-11-27 20:20:02,851 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1354784784] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:20:02,851 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:20:02,851 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-27 20:20:02,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1628732644] [2024-11-27 20:20:02,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:20:02,852 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 20:20:02,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:20:02,853 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 20:20:02,854 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-27 20:20:02,854 INFO L87 Difference]: Start difference. First operand 18020 states and 25823 transitions. Second operand has 5 states, 5 states have (on average 26.0) internal successors, (130), 4 states have internal predecessors, (130), 2 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (20), 3 states have call predecessors, (20), 2 states have call successors, (20) [2024-11-27 20:20:03,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:20:03,784 INFO L93 Difference]: Finished difference Result 36067 states and 51714 transitions. [2024-11-27 20:20:03,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 20:20:03,785 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.0) internal successors, (130), 4 states have internal predecessors, (130), 2 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (20), 3 states have call predecessors, (20), 2 states have call successors, (20) Word has length 214 [2024-11-27 20:20:03,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:20:03,890 INFO L225 Difference]: With dead ends: 36067 [2024-11-27 20:20:03,890 INFO L226 Difference]: Without dead ends: 18082 [2024-11-27 20:20:03,938 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-27 20:20:03,939 INFO L435 NwaCegarLoop]: 1229 mSDtfsCounter, 0 mSDsluCounter, 3682 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 4911 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 20:20:03,940 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 4911 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 20:20:03,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18082 states. [2024-11-27 20:20:04,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18082 to 18068. [2024-11-27 20:20:04,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18068 states, 15006 states have (on average 1.4266293482606958) internal successors, (21408), 15206 states have internal predecessors, (21408), 2111 states have call successors, (2111), 913 states have call predecessors, (2111), 950 states have return successors, (2355), 2106 states have call predecessors, (2355), 2110 states have call successors, (2355) [2024-11-27 20:20:04,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18068 states to 18068 states and 25874 transitions. [2024-11-27 20:20:04,870 INFO L78 Accepts]: Start accepts. Automaton has 18068 states and 25874 transitions. Word has length 214 [2024-11-27 20:20:04,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:20:04,871 INFO L471 AbstractCegarLoop]: Abstraction has 18068 states and 25874 transitions. [2024-11-27 20:20:04,872 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.0) internal successors, (130), 4 states have internal predecessors, (130), 2 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (20), 3 states have call predecessors, (20), 2 states have call successors, (20) [2024-11-27 20:20:04,873 INFO L276 IsEmpty]: Start isEmpty. Operand 18068 states and 25874 transitions. [2024-11-27 20:20:04,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2024-11-27 20:20:04,899 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:20:04,900 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 12, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:20:04,901 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-27 20:20:04,902 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:20:04,902 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:20:04,903 INFO L85 PathProgramCache]: Analyzing trace with hash 624067007, now seen corresponding path program 1 times [2024-11-27 20:20:04,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:20:04,904 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1663483656] [2024-11-27 20:20:04,904 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:20:04,904 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:20:05,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:20:05,623 INFO L134 CoverageAnalysis]: Checked inductivity of 334 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 316 trivial. 0 not checked. [2024-11-27 20:20:05,623 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:20:05,623 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1663483656] [2024-11-27 20:20:05,623 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1663483656] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:20:05,623 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1247370949] [2024-11-27 20:20:05,623 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:20:05,624 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:20:05,624 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef469ef5-0aa9-4472-9f4e-0a94fdca4c28/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:20:05,628 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef469ef5-0aa9-4472-9f4e-0a94fdca4c28/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:20:05,633 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef469ef5-0aa9-4472-9f4e-0a94fdca4c28/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-27 20:20:06,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:20:06,848 INFO L256 TraceCheckSpWp]: Trace formula consists of 1620 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-27 20:20:06,873 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:20:06,983 INFO L134 CoverageAnalysis]: Checked inductivity of 334 backedges. 66 proven. 0 refuted. 0 times theorem prover too weak. 268 trivial. 0 not checked. [2024-11-27 20:20:06,987 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 20:20:06,987 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1247370949] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:20:06,988 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 20:20:06,988 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2024-11-27 20:20:06,988 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [522684255] [2024-11-27 20:20:06,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:20:06,989 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 20:20:06,989 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:20:06,990 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 20:20:06,990 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-27 20:20:06,990 INFO L87 Difference]: Start difference. First operand 18068 states and 25874 transitions. Second operand has 5 states, 5 states have (on average 28.6) internal successors, (143), 5 states have internal predecessors, (143), 3 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2024-11-27 20:20:11,007 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 20:20:11,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:20:11,959 INFO L93 Difference]: Finished difference Result 42207 states and 60206 transitions. [2024-11-27 20:20:11,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-27 20:20:11,959 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.6) internal successors, (143), 5 states have internal predecessors, (143), 3 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) Word has length 221 [2024-11-27 20:20:11,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:20:12,102 INFO L225 Difference]: With dead ends: 42207 [2024-11-27 20:20:12,103 INFO L226 Difference]: Without dead ends: 24174 [2024-11-27 20:20:12,153 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 226 GetRequests, 219 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-27 20:20:12,154 INFO L435 NwaCegarLoop]: 2089 mSDtfsCounter, 881 mSDsluCounter, 5333 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 887 SdHoareTripleChecker+Valid, 7422 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2024-11-27 20:20:12,154 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [887 Valid, 7422 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 46 Invalid, 1 Unknown, 0 Unchecked, 4.1s Time] [2024-11-27 20:20:12,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24174 states. [2024-11-27 20:20:13,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24174 to 18080. [2024-11-27 20:20:13,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18080 states, 15018 states have (on average 1.4262884538553735) internal successors, (21420), 15206 states have internal predecessors, (21420), 2111 states have call successors, (2111), 913 states have call predecessors, (2111), 950 states have return successors, (2355), 2106 states have call predecessors, (2355), 2110 states have call successors, (2355) [2024-11-27 20:20:13,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18080 states to 18080 states and 25886 transitions. [2024-11-27 20:20:13,158 INFO L78 Accepts]: Start accepts. Automaton has 18080 states and 25886 transitions. Word has length 221 [2024-11-27 20:20:13,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:20:13,160 INFO L471 AbstractCegarLoop]: Abstraction has 18080 states and 25886 transitions. [2024-11-27 20:20:13,160 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.6) internal successors, (143), 5 states have internal predecessors, (143), 3 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2024-11-27 20:20:13,161 INFO L276 IsEmpty]: Start isEmpty. Operand 18080 states and 25886 transitions. [2024-11-27 20:20:13,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 260 [2024-11-27 20:20:13,187 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:20:13,187 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 12, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:20:13,204 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef469ef5-0aa9-4472-9f4e-0a94fdca4c28/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-27 20:20:13,387 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef469ef5-0aa9-4472-9f4e-0a94fdca4c28/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:20:13,388 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:20:13,389 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:20:13,389 INFO L85 PathProgramCache]: Analyzing trace with hash 1288932074, now seen corresponding path program 1 times [2024-11-27 20:20:13,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:20:13,390 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [100794010] [2024-11-27 20:20:13,390 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:20:13,390 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:20:14,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:20:14,674 INFO L134 CoverageAnalysis]: Checked inductivity of 361 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 343 trivial. 0 not checked. [2024-11-27 20:20:14,674 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:20:14,674 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [100794010] [2024-11-27 20:20:14,675 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [100794010] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:20:14,675 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1857387960] [2024-11-27 20:20:14,675 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:20:14,675 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:20:14,675 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef469ef5-0aa9-4472-9f4e-0a94fdca4c28/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:20:14,678 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef469ef5-0aa9-4472-9f4e-0a94fdca4c28/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:20:14,682 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef469ef5-0aa9-4472-9f4e-0a94fdca4c28/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-27 20:20:16,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:20:16,618 INFO L256 TraceCheckSpWp]: Trace formula consists of 2364 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-27 20:20:16,631 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:20:17,248 INFO L134 CoverageAnalysis]: Checked inductivity of 361 backedges. 155 proven. 0 refuted. 0 times theorem prover too weak. 206 trivial. 0 not checked. [2024-11-27 20:20:17,249 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 20:20:17,249 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1857387960] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:20:17,249 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 20:20:17,250 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 5 [2024-11-27 20:20:17,252 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [254644621] [2024-11-27 20:20:17,252 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:20:17,253 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 20:20:17,253 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:20:17,254 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 20:20:17,255 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-27 20:20:17,256 INFO L87 Difference]: Start difference. First operand 18080 states and 25886 transitions. Second operand has 4 states, 4 states have (on average 41.0) internal successors, (164), 4 states have internal predecessors, (164), 4 states have call successors, (28), 4 states have call predecessors, (28), 3 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) [2024-11-27 20:20:21,279 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 [] [2024-11-27 20:20:22,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:20:22,595 INFO L93 Difference]: Finished difference Result 24218 states and 34424 transitions. [2024-11-27 20:20:22,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 20:20:22,596 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 41.0) internal successors, (164), 4 states have internal predecessors, (164), 4 states have call successors, (28), 4 states have call predecessors, (28), 3 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) Word has length 259 [2024-11-27 20:20:22,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:20:22,721 INFO L225 Difference]: With dead ends: 24218 [2024-11-27 20:20:22,722 INFO L226 Difference]: Without dead ends: 24180 [2024-11-27 20:20:22,737 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 262 GetRequests, 259 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-27 20:20:22,738 INFO L435 NwaCegarLoop]: 2075 mSDtfsCounter, 2165 mSDsluCounter, 725 mSDsCounter, 0 mSdLazyCounter, 187 mSolverCounterSat, 43 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2165 SdHoareTripleChecker+Valid, 2800 SdHoareTripleChecker+Invalid, 231 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 187 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2024-11-27 20:20:22,738 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2165 Valid, 2800 Invalid, 231 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 187 Invalid, 1 Unknown, 0 Unchecked, 4.7s Time] [2024-11-27 20:20:22,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24180 states. [2024-11-27 20:20:24,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24180 to 22474. [2024-11-27 20:20:24,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22474 states, 18610 states have (on average 1.4186996238581409) internal successors, (26402), 18838 states have internal predecessors, (26402), 2657 states have call successors, (2657), 1159 states have call predecessors, (2657), 1206 states have return successors, (2989), 2656 states have call predecessors, (2989), 2656 states have call successors, (2989) [2024-11-27 20:20:24,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22474 states to 22474 states and 32048 transitions. [2024-11-27 20:20:24,490 INFO L78 Accepts]: Start accepts. Automaton has 22474 states and 32048 transitions. Word has length 259 [2024-11-27 20:20:24,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:20:24,493 INFO L471 AbstractCegarLoop]: Abstraction has 22474 states and 32048 transitions. [2024-11-27 20:20:24,493 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 41.0) internal successors, (164), 4 states have internal predecessors, (164), 4 states have call successors, (28), 4 states have call predecessors, (28), 3 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) [2024-11-27 20:20:24,493 INFO L276 IsEmpty]: Start isEmpty. Operand 22474 states and 32048 transitions. [2024-11-27 20:20:24,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2024-11-27 20:20:24,511 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:20:24,511 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 12, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:20:24,528 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef469ef5-0aa9-4472-9f4e-0a94fdca4c28/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-27 20:20:24,715 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef469ef5-0aa9-4472-9f4e-0a94fdca4c28/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:20:24,716 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:20:24,716 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:20:24,716 INFO L85 PathProgramCache]: Analyzing trace with hash 1213927980, now seen corresponding path program 1 times [2024-11-27 20:20:24,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:20:24,716 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [675736039] [2024-11-27 20:20:24,716 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:20:24,717 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:20:25,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:20:25,579 INFO L134 CoverageAnalysis]: Checked inductivity of 369 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 352 trivial. 0 not checked. [2024-11-27 20:20:25,580 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:20:25,580 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [675736039] [2024-11-27 20:20:25,580 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [675736039] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:20:25,580 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:20:25,580 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 20:20:25,582 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [578698547] [2024-11-27 20:20:25,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:20:25,583 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 20:20:25,584 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:20:25,584 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 20:20:25,585 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:20:25,586 INFO L87 Difference]: Start difference. First operand 22474 states and 32048 transitions. Second operand has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 3 states have internal predecessors, (154), 3 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2024-11-27 20:20:29,600 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 [] [2024-11-27 20:20:30,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:20:30,052 INFO L93 Difference]: Finished difference Result 33585 states and 47928 transitions. [2024-11-27 20:20:30,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:20:30,053 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 3 states have internal predecessors, (154), 3 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 263 [2024-11-27 20:20:30,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:20:30,102 INFO L225 Difference]: With dead ends: 33585 [2024-11-27 20:20:30,102 INFO L226 Difference]: Without dead ends: 9496 [2024-11-27 20:20:30,152 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:20:30,153 INFO L435 NwaCegarLoop]: 1258 mSDtfsCounter, 1084 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1084 SdHoareTripleChecker+Valid, 1335 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2024-11-27 20:20:30,153 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1084 Valid, 1335 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 1 Unknown, 0 Unchecked, 4.0s Time] [2024-11-27 20:20:30,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9496 states. [2024-11-27 20:20:30,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9496 to 9496. [2024-11-27 20:20:30,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9496 states, 7826 states have (on average 1.4081267569639662) internal successors, (11020), 7924 states have internal predecessors, (11020), 1135 states have call successors, (1135), 512 states have call predecessors, (1135), 534 states have return successors, (1282), 1140 states have call predecessors, (1282), 1134 states have call successors, (1282) [2024-11-27 20:20:30,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9496 states to 9496 states and 13437 transitions. [2024-11-27 20:20:30,834 INFO L78 Accepts]: Start accepts. Automaton has 9496 states and 13437 transitions. Word has length 263 [2024-11-27 20:20:30,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:20:30,835 INFO L471 AbstractCegarLoop]: Abstraction has 9496 states and 13437 transitions. [2024-11-27 20:20:30,835 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 3 states have internal predecessors, (154), 3 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2024-11-27 20:20:30,836 INFO L276 IsEmpty]: Start isEmpty. Operand 9496 states and 13437 transitions. [2024-11-27 20:20:30,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 277 [2024-11-27 20:20:30,848 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:20:30,848 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 12, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:20:30,849 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-27 20:20:30,849 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:20:30,849 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:20:30,850 INFO L85 PathProgramCache]: Analyzing trace with hash -1294997322, now seen corresponding path program 1 times [2024-11-27 20:20:30,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:20:30,850 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [601287624] [2024-11-27 20:20:30,850 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:20:30,850 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:20:31,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:20:33,561 INFO L134 CoverageAnalysis]: Checked inductivity of 381 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 353 trivial. 0 not checked. [2024-11-27 20:20:33,561 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:20:33,562 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [601287624] [2024-11-27 20:20:33,562 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [601287624] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:20:33,562 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:20:33,562 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-27 20:20:33,562 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1093340952] [2024-11-27 20:20:33,562 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:20:33,563 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-27 20:20:33,563 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:20:33,564 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-27 20:20:33,565 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-27 20:20:33,566 INFO L87 Difference]: Start difference. First operand 9496 states and 13437 transitions. Second operand has 8 states, 8 states have (on average 20.625) internal successors, (165), 7 states have internal predecessors, (165), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (28), 3 states have call predecessors, (28), 2 states have call successors, (28) [2024-11-27 20:20:37,917 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 [] [2024-11-27 20:20:38,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:20:38,432 INFO L93 Difference]: Finished difference Result 18988 states and 26866 transitions. [2024-11-27 20:20:38,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-27 20:20:38,433 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 20.625) internal successors, (165), 7 states have internal predecessors, (165), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (28), 3 states have call predecessors, (28), 2 states have call successors, (28) Word has length 276 [2024-11-27 20:20:38,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:20:38,497 INFO L225 Difference]: With dead ends: 18988 [2024-11-27 20:20:38,497 INFO L226 Difference]: Without dead ends: 9578 [2024-11-27 20:20:38,527 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-27 20:20:38,528 INFO L435 NwaCegarLoop]: 1224 mSDtfsCounter, 0 mSDsluCounter, 7328 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 8552 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2024-11-27 20:20:38,529 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 8552 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 49 Invalid, 1 Unknown, 0 Unchecked, 4.2s Time] [2024-11-27 20:20:38,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9578 states. [2024-11-27 20:20:39,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9578 to 9566. [2024-11-27 20:20:39,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9566 states, 7886 states have (on average 1.405021557189957) internal successors, (11080), 7984 states have internal predecessors, (11080), 1135 states have call successors, (1135), 512 states have call predecessors, (1135), 544 states have return successors, (1292), 1150 states have call predecessors, (1292), 1134 states have call successors, (1292) [2024-11-27 20:20:39,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9566 states to 9566 states and 13507 transitions. [2024-11-27 20:20:39,230 INFO L78 Accepts]: Start accepts. Automaton has 9566 states and 13507 transitions. Word has length 276 [2024-11-27 20:20:39,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:20:39,231 INFO L471 AbstractCegarLoop]: Abstraction has 9566 states and 13507 transitions. [2024-11-27 20:20:39,231 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 20.625) internal successors, (165), 7 states have internal predecessors, (165), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (28), 3 states have call predecessors, (28), 2 states have call successors, (28) [2024-11-27 20:20:39,231 INFO L276 IsEmpty]: Start isEmpty. Operand 9566 states and 13507 transitions. [2024-11-27 20:20:39,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 283 [2024-11-27 20:20:39,239 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:20:39,240 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 12, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:20:39,240 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-27 20:20:39,241 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:20:39,241 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:20:39,241 INFO L85 PathProgramCache]: Analyzing trace with hash -843353815, now seen corresponding path program 1 times [2024-11-27 20:20:39,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:20:39,241 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2013333462] [2024-11-27 20:20:39,242 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:20:39,242 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:20:39,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:20:40,393 INFO L134 CoverageAnalysis]: Checked inductivity of 385 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 358 trivial. 0 not checked. [2024-11-27 20:20:40,393 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:20:40,394 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2013333462] [2024-11-27 20:20:40,394 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2013333462] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:20:40,394 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:20:40,394 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-27 20:20:40,394 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [25659187] [2024-11-27 20:20:40,394 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:20:40,395 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 20:20:40,395 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:20:40,396 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 20:20:40,396 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 20:20:40,396 INFO L87 Difference]: Start difference. First operand 9566 states and 13507 transitions. Second operand has 4 states, 4 states have (on average 41.25) internal successors, (165), 4 states have internal predecessors, (165), 2 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2024-11-27 20:20:40,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:20:40,794 INFO L93 Difference]: Finished difference Result 19058 states and 26926 transitions. [2024-11-27 20:20:40,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 20:20:40,794 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 41.25) internal successors, (165), 4 states have internal predecessors, (165), 2 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) Word has length 282 [2024-11-27 20:20:40,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:20:40,837 INFO L225 Difference]: With dead ends: 19058 [2024-11-27 20:20:40,837 INFO L226 Difference]: Without dead ends: 9578 [2024-11-27 20:20:40,861 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 20:20:40,862 INFO L435 NwaCegarLoop]: 1226 mSDtfsCounter, 1 mSDsluCounter, 2442 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 3668 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 20:20:40,862 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 3668 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 20:20:40,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9578 states. [2024-11-27 20:20:41,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9578 to 9578. [2024-11-27 20:20:41,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9578 states, 7898 states have (on average 1.4044061787794377) internal successors, (11092), 7996 states have internal predecessors, (11092), 1135 states have call successors, (1135), 512 states have call predecessors, (1135), 544 states have return successors, (1292), 1150 states have call predecessors, (1292), 1134 states have call successors, (1292) [2024-11-27 20:20:41,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9578 states to 9578 states and 13519 transitions. [2024-11-27 20:20:41,524 INFO L78 Accepts]: Start accepts. Automaton has 9578 states and 13519 transitions. Word has length 282 [2024-11-27 20:20:41,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:20:41,525 INFO L471 AbstractCegarLoop]: Abstraction has 9578 states and 13519 transitions. [2024-11-27 20:20:41,525 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 41.25) internal successors, (165), 4 states have internal predecessors, (165), 2 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2024-11-27 20:20:41,525 INFO L276 IsEmpty]: Start isEmpty. Operand 9578 states and 13519 transitions. [2024-11-27 20:20:41,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 284 [2024-11-27 20:20:41,534 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:20:41,534 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 12, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:20:41,536 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-27 20:20:41,536 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:20:41,537 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:20:41,537 INFO L85 PathProgramCache]: Analyzing trace with hash -2036519164, now seen corresponding path program 1 times [2024-11-27 20:20:41,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:20:41,537 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [294407507] [2024-11-27 20:20:41,538 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:20:41,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:20:42,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:20:42,546 INFO L134 CoverageAnalysis]: Checked inductivity of 385 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 357 trivial. 0 not checked. [2024-11-27 20:20:42,546 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:20:42,546 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [294407507] [2024-11-27 20:20:42,546 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [294407507] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:20:42,546 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:20:42,546 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 20:20:42,546 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1414905666] [2024-11-27 20:20:42,546 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:20:42,548 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 20:20:42,548 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:20:42,549 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 20:20:42,549 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:20:42,550 INFO L87 Difference]: Start difference. First operand 9578 states and 13519 transitions. Second operand has 3 states, 3 states have (on average 55.666666666666664) internal successors, (167), 3 states have internal predecessors, (167), 2 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2024-11-27 20:20:43,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:20:43,079 INFO L93 Difference]: Finished difference Result 19070 states and 26932 transitions. [2024-11-27 20:20:43,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:20:43,080 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.666666666666664) internal successors, (167), 3 states have internal predecessors, (167), 2 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) Word has length 283 [2024-11-27 20:20:43,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:20:43,138 INFO L225 Difference]: With dead ends: 19070 [2024-11-27 20:20:43,138 INFO L226 Difference]: Without dead ends: 9578 [2024-11-27 20:20:43,163 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:20:43,163 INFO L435 NwaCegarLoop]: 1226 mSDtfsCounter, 2 mSDsluCounter, 1223 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 2449 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 20:20:43,164 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 2449 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 20:20:43,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9578 states. [2024-11-27 20:20:43,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9578 to 9578. [2024-11-27 20:20:43,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9578 states, 7898 states have (on average 1.4031400354520132) internal successors, (11082), 7996 states have internal predecessors, (11082), 1135 states have call successors, (1135), 512 states have call predecessors, (1135), 544 states have return successors, (1292), 1150 states have call predecessors, (1292), 1134 states have call successors, (1292) [2024-11-27 20:20:43,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9578 states to 9578 states and 13509 transitions. [2024-11-27 20:20:43,739 INFO L78 Accepts]: Start accepts. Automaton has 9578 states and 13509 transitions. Word has length 283 [2024-11-27 20:20:43,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:20:43,740 INFO L471 AbstractCegarLoop]: Abstraction has 9578 states and 13509 transitions. [2024-11-27 20:20:43,740 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.666666666666664) internal successors, (167), 3 states have internal predecessors, (167), 2 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2024-11-27 20:20:43,741 INFO L276 IsEmpty]: Start isEmpty. Operand 9578 states and 13509 transitions. [2024-11-27 20:20:43,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 286 [2024-11-27 20:20:43,749 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:20:43,750 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 12, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:20:43,750 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-27 20:20:43,750 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:20:43,752 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:20:43,752 INFO L85 PathProgramCache]: Analyzing trace with hash -1686728889, now seen corresponding path program 1 times [2024-11-27 20:20:43,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:20:43,753 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [683974194] [2024-11-27 20:20:43,753 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:20:43,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:20:44,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:20:46,198 INFO L134 CoverageAnalysis]: Checked inductivity of 385 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 358 trivial. 0 not checked. [2024-11-27 20:20:46,199 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:20:46,199 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [683974194] [2024-11-27 20:20:46,200 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [683974194] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:20:46,200 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:20:46,201 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-27 20:20:46,201 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1375349177] [2024-11-27 20:20:46,201 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:20:46,202 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 20:20:46,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:20:46,203 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 20:20:46,204 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-27 20:20:46,204 INFO L87 Difference]: Start difference. First operand 9578 states and 13509 transitions. Second operand has 6 states, 6 states have (on average 28.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (29), 3 states have call predecessors, (29), 2 states have call successors, (29) [2024-11-27 20:20:47,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:20:47,157 INFO L93 Difference]: Finished difference Result 19146 states and 27006 transitions. [2024-11-27 20:20:47,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 20:20:47,158 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 28.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (29), 3 states have call predecessors, (29), 2 states have call successors, (29) Word has length 285 [2024-11-27 20:20:47,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:20:47,206 INFO L225 Difference]: With dead ends: 19146 [2024-11-27 20:20:47,207 INFO L226 Difference]: Without dead ends: 9654 [2024-11-27 20:20:47,225 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-27 20:20:47,226 INFO L435 NwaCegarLoop]: 1225 mSDtfsCounter, 0 mSDsluCounter, 4888 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6113 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 20:20:47,227 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 6113 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 20:20:47,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9654 states. [2024-11-27 20:20:47,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9654 to 9614. [2024-11-27 20:20:47,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9614 states, 7928 states have (on average 1.401614530776993) internal successors, (11112), 8026 states have internal predecessors, (11112), 1135 states have call successors, (1135), 512 states have call predecessors, (1135), 550 states have return successors, (1310), 1156 states have call predecessors, (1310), 1134 states have call successors, (1310) [2024-11-27 20:20:47,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9614 states to 9614 states and 13557 transitions. [2024-11-27 20:20:47,655 INFO L78 Accepts]: Start accepts. Automaton has 9614 states and 13557 transitions. Word has length 285 [2024-11-27 20:20:47,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:20:47,656 INFO L471 AbstractCegarLoop]: Abstraction has 9614 states and 13557 transitions. [2024-11-27 20:20:47,656 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 28.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (29), 3 states have call predecessors, (29), 2 states have call successors, (29) [2024-11-27 20:20:47,656 INFO L276 IsEmpty]: Start isEmpty. Operand 9614 states and 13557 transitions. [2024-11-27 20:20:47,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 287 [2024-11-27 20:20:47,665 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:20:47,666 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 12, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:20:47,666 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-27 20:20:47,666 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:20:47,667 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:20:47,667 INFO L85 PathProgramCache]: Analyzing trace with hash -1772095749, now seen corresponding path program 1 times [2024-11-27 20:20:47,667 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:20:47,667 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1666221868] [2024-11-27 20:20:47,667 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:20:47,667 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:20:48,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:20:50,937 INFO L134 CoverageAnalysis]: Checked inductivity of 385 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 331 trivial. 0 not checked. [2024-11-27 20:20:50,937 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:20:50,938 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1666221868] [2024-11-27 20:20:50,938 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1666221868] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:20:50,938 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:20:50,938 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-27 20:20:50,938 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [102292009] [2024-11-27 20:20:50,938 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:20:50,939 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-27 20:20:50,939 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:20:50,940 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-27 20:20:50,941 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2024-11-27 20:20:50,941 INFO L87 Difference]: Start difference. First operand 9614 states and 13557 transitions. Second operand has 14 states, 13 states have (on average 13.307692307692308) internal successors, (173), 11 states have internal predecessors, (173), 3 states have call successors, (30), 2 states have call predecessors, (30), 4 states have return successors, (29), 5 states have call predecessors, (29), 3 states have call successors, (29) [2024-11-27 20:20:51,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:20:51,827 INFO L93 Difference]: Finished difference Result 19778 states and 27995 transitions. [2024-11-27 20:20:51,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-27 20:20:51,828 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 13.307692307692308) internal successors, (173), 11 states have internal predecessors, (173), 3 states have call successors, (30), 2 states have call predecessors, (30), 4 states have return successors, (29), 5 states have call predecessors, (29), 3 states have call successors, (29) Word has length 286 [2024-11-27 20:20:51,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:20:51,883 INFO L225 Difference]: With dead ends: 19778 [2024-11-27 20:20:51,884 INFO L226 Difference]: Without dead ends: 10250 [2024-11-27 20:20:51,908 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2024-11-27 20:20:51,909 INFO L435 NwaCegarLoop]: 1378 mSDtfsCounter, 139 mSDsluCounter, 16359 mSDsCounter, 0 mSdLazyCounter, 201 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 17737 SdHoareTripleChecker+Invalid, 202 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 201 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-27 20:20:51,909 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [147 Valid, 17737 Invalid, 202 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 201 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-27 20:20:51,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10250 states. [2024-11-27 20:20:52,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10250 to 9644. [2024-11-27 20:20:52,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9644 states, 7952 states have (on average 1.3996478873239437) internal successors, (11130), 8050 states have internal predecessors, (11130), 1135 states have call successors, (1135), 512 states have call predecessors, (1135), 556 states have return successors, (1316), 1162 states have call predecessors, (1316), 1134 states have call successors, (1316) [2024-11-27 20:20:52,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9644 states to 9644 states and 13581 transitions. [2024-11-27 20:20:52,481 INFO L78 Accepts]: Start accepts. Automaton has 9644 states and 13581 transitions. Word has length 286 [2024-11-27 20:20:52,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:20:52,482 INFO L471 AbstractCegarLoop]: Abstraction has 9644 states and 13581 transitions. [2024-11-27 20:20:52,482 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 13.307692307692308) internal successors, (173), 11 states have internal predecessors, (173), 3 states have call successors, (30), 2 states have call predecessors, (30), 4 states have return successors, (29), 5 states have call predecessors, (29), 3 states have call successors, (29) [2024-11-27 20:20:52,482 INFO L276 IsEmpty]: Start isEmpty. Operand 9644 states and 13581 transitions. [2024-11-27 20:20:52,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 291 [2024-11-27 20:20:52,491 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:20:52,491 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 12, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:20:52,492 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-27 20:20:52,492 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:20:52,492 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:20:52,493 INFO L85 PathProgramCache]: Analyzing trace with hash 1866824968, now seen corresponding path program 1 times [2024-11-27 20:20:52,493 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:20:52,493 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1019549480] [2024-11-27 20:20:52,493 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:20:52,493 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:20:53,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:20:57,286 INFO L134 CoverageAnalysis]: Checked inductivity of 385 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 334 trivial. 0 not checked. [2024-11-27 20:20:57,286 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:20:57,286 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1019549480] [2024-11-27 20:20:57,287 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1019549480] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:20:57,287 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:20:57,287 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-11-27 20:20:57,287 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1355474613] [2024-11-27 20:20:57,287 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:20:57,288 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-27 20:20:57,288 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:20:57,289 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-27 20:20:57,289 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=207, Unknown=0, NotChecked=0, Total=240 [2024-11-27 20:20:57,289 INFO L87 Difference]: Start difference. First operand 9644 states and 13581 transitions. Second operand has 16 states, 16 states have (on average 11.0) internal successors, (176), 14 states have internal predecessors, (176), 3 states have call successors, (29), 2 states have call predecessors, (29), 3 states have return successors, (28), 5 states have call predecessors, (28), 3 states have call successors, (28) [2024-11-27 20:21:01,304 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 20:21:05,307 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 20:21:09,313 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 20:21:13,316 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 20:21:17,321 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 20:21:21,324 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 20:21:25,331 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 20:21:29,335 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 20:21:33,341 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 20:21:37,347 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 20:21:41,351 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 20:21:45,355 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 20:21:51,806 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 20:21:55,825 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 20:21:59,830 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 20:22:03,837 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 20:22:07,850 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 20:22:11,858 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 20:22:15,865 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 20:22:19,872 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 20:22:23,878 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 20:22:27,885 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 20:22:31,893 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 20:22:35,900 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 20:22:37,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:22:37,715 INFO L93 Difference]: Finished difference Result 19304 states and 27209 transitions. [2024-11-27 20:22:37,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-27 20:22:37,716 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 11.0) internal successors, (176), 14 states have internal predecessors, (176), 3 states have call successors, (29), 2 states have call predecessors, (29), 3 states have return successors, (28), 5 states have call predecessors, (28), 3 states have call successors, (28) Word has length 290 [2024-11-27 20:22:37,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:22:37,763 INFO L225 Difference]: With dead ends: 19304 [2024-11-27 20:22:37,763 INFO L226 Difference]: Without dead ends: 9746 [2024-11-27 20:22:37,787 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2024-11-27 20:22:37,788 INFO L435 NwaCegarLoop]: 1246 mSDtfsCounter, 29 mSDsluCounter, 12365 mSDsCounter, 0 mSdLazyCounter, 1519 mSolverCounterSat, 0 mSolverCounterUnsat, 24 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 99.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 13611 SdHoareTripleChecker+Invalid, 1543 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1519 IncrementalHoareTripleChecker+Invalid, 24 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 99.8s IncrementalHoareTripleChecker+Time [2024-11-27 20:22:37,788 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 13611 Invalid, 1543 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 1519 Invalid, 24 Unknown, 0 Unchecked, 99.8s Time] [2024-11-27 20:22:37,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9746 states. [2024-11-27 20:22:38,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9746 to 9674. [2024-11-27 20:22:38,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9674 states, 7982 states have (on average 1.3988975194186921) internal successors, (11166), 8080 states have internal predecessors, (11166), 1135 states have call successors, (1135), 512 states have call predecessors, (1135), 556 states have return successors, (1316), 1162 states have call predecessors, (1316), 1134 states have call successors, (1316) [2024-11-27 20:22:38,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9674 states to 9674 states and 13617 transitions. [2024-11-27 20:22:38,357 INFO L78 Accepts]: Start accepts. Automaton has 9674 states and 13617 transitions. Word has length 290 [2024-11-27 20:22:38,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:22:38,358 INFO L471 AbstractCegarLoop]: Abstraction has 9674 states and 13617 transitions. [2024-11-27 20:22:38,358 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 11.0) internal successors, (176), 14 states have internal predecessors, (176), 3 states have call successors, (29), 2 states have call predecessors, (29), 3 states have return successors, (28), 5 states have call predecessors, (28), 3 states have call successors, (28) [2024-11-27 20:22:38,358 INFO L276 IsEmpty]: Start isEmpty. Operand 9674 states and 13617 transitions. [2024-11-27 20:22:38,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 291 [2024-11-27 20:22:38,366 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:22:38,367 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 12, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:22:38,367 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-27 20:22:38,367 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:22:38,367 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:22:38,367 INFO L85 PathProgramCache]: Analyzing trace with hash -1552123322, now seen corresponding path program 1 times [2024-11-27 20:22:38,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:22:38,368 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [800205766] [2024-11-27 20:22:38,368 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:22:38,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:22:39,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:22:45,057 INFO L134 CoverageAnalysis]: Checked inductivity of 385 backedges. 86 proven. 0 refuted. 0 times theorem prover too weak. 299 trivial. 0 not checked. [2024-11-27 20:22:45,057 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:22:45,057 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [800205766] [2024-11-27 20:22:45,057 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [800205766] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:22:45,057 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:22:45,058 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [32] imperfect sequences [] total 32 [2024-11-27 20:22:45,058 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2066913657] [2024-11-27 20:22:45,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:22:45,058 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2024-11-27 20:22:45,059 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:22:45,059 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2024-11-27 20:22:45,060 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=916, Unknown=0, NotChecked=0, Total=992 [2024-11-27 20:22:45,060 INFO L87 Difference]: Start difference. First operand 9674 states and 13617 transitions. Second operand has 32 states, 31 states have (on average 6.032258064516129) internal successors, (187), 27 states have internal predecessors, (187), 9 states have call successors, (29), 2 states have call predecessors, (29), 6 states have return successors, (28), 11 states have call predecessors, (28), 9 states have call successors, (28) [2024-11-27 20:22:49,072 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 20:22:53,076 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 20:22:57,084 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 20:23:01,088 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 20:23:05,093 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 20:23:09,102 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 20:23:13,106 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 20:23:17,109 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 20:23:21,111 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 20:23:25,118 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 20:23:29,121 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 20:23:33,127 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 20:23:37,134 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 20:23:41,139 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 20:23:45,142 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 20:23:49,148 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 20:23:53,157 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 20:23:57,159 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 20:24:01,166 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 20:24:05,171 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 20:24:13,710 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 20:24:17,715 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 20:24:21,721 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 20:24:25,726 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 20:24:29,731 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 20:24:33,737 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 20:24:37,744 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 20:24:41,754 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 20:24:45,760 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 20:24:49,770 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 20:24:53,780 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 20:24:57,784 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 20:25:01,794 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 20:25:05,800 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 20:25:09,806 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 20:25:13,822 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 20:25:17,827 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 20:25:21,837 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 20:25:25,843 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 20:25:29,851 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 20:25:33,858 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 20:25:37,863 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 20:25:41,867 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 20:25:45,874 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 20:25:49,884 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 20:25:53,891 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 20:25:57,899 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 20:26:01,903 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 20:26:11,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:26:11,332 INFO L93 Difference]: Finished difference Result 26538 states and 37338 transitions. [2024-11-27 20:26:11,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2024-11-27 20:26:11,333 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 31 states have (on average 6.032258064516129) internal successors, (187), 27 states have internal predecessors, (187), 9 states have call successors, (29), 2 states have call predecessors, (29), 6 states have return successors, (28), 11 states have call predecessors, (28), 9 states have call successors, (28) Word has length 290 [2024-11-27 20:26:11,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:26:11,404 INFO L225 Difference]: With dead ends: 26538 [2024-11-27 20:26:11,404 INFO L226 Difference]: Without dead ends: 16950 [2024-11-27 20:26:11,426 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1433 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=377, Invalid=5629, Unknown=0, NotChecked=0, Total=6006 [2024-11-27 20:26:11,426 INFO L435 NwaCegarLoop]: 1783 mSDtfsCounter, 3191 mSDsluCounter, 39098 mSDsCounter, 0 mSdLazyCounter, 7487 mSolverCounterSat, 149 mSolverCounterUnsat, 48 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 202.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3213 SdHoareTripleChecker+Valid, 40881 SdHoareTripleChecker+Invalid, 7684 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 149 IncrementalHoareTripleChecker+Valid, 7487 IncrementalHoareTripleChecker+Invalid, 48 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 203.4s IncrementalHoareTripleChecker+Time [2024-11-27 20:26:11,426 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3213 Valid, 40881 Invalid, 7684 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [149 Valid, 7487 Invalid, 48 Unknown, 0 Unchecked, 203.4s Time] [2024-11-27 20:26:11,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16950 states. [2024-11-27 20:26:11,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16950 to 16158. [2024-11-27 20:26:11,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16158 states, 13337 states have (on average 1.4041388618130015) internal successors, (18727), 13535 states have internal predecessors, (18727), 1862 states have call successors, (1862), 872 states have call predecessors, (1862), 958 states have return successors, (2225), 1873 states have call predecessors, (2225), 1861 states have call successors, (2225) [2024-11-27 20:26:12,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16158 states to 16158 states and 22814 transitions. [2024-11-27 20:26:12,055 INFO L78 Accepts]: Start accepts. Automaton has 16158 states and 22814 transitions. Word has length 290 [2024-11-27 20:26:12,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:26:12,056 INFO L471 AbstractCegarLoop]: Abstraction has 16158 states and 22814 transitions. [2024-11-27 20:26:12,056 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 31 states have (on average 6.032258064516129) internal successors, (187), 27 states have internal predecessors, (187), 9 states have call successors, (29), 2 states have call predecessors, (29), 6 states have return successors, (28), 11 states have call predecessors, (28), 9 states have call successors, (28) [2024-11-27 20:26:12,056 INFO L276 IsEmpty]: Start isEmpty. Operand 16158 states and 22814 transitions. [2024-11-27 20:26:12,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 292 [2024-11-27 20:26:12,070 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:26:12,071 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 12, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:26:12,071 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-27 20:26:12,071 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:26:12,072 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:26:12,072 INFO L85 PathProgramCache]: Analyzing trace with hash -91727737, now seen corresponding path program 1 times [2024-11-27 20:26:12,072 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:26:12,072 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [778920536] [2024-11-27 20:26:12,072 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:26:12,072 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:26:12,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:26:17,553 INFO L134 CoverageAnalysis]: Checked inductivity of 385 backedges. 77 proven. 20 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2024-11-27 20:26:17,554 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:26:17,554 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [778920536] [2024-11-27 20:26:17,554 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [778920536] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:26:17,554 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1765097625] [2024-11-27 20:26:17,554 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:26:17,554 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:26:17,554 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef469ef5-0aa9-4472-9f4e-0a94fdca4c28/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:26:17,558 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef469ef5-0aa9-4472-9f4e-0a94fdca4c28/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:26:17,560 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef469ef5-0aa9-4472-9f4e-0a94fdca4c28/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-27 20:26:19,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:26:19,508 INFO L256 TraceCheckSpWp]: Trace formula consists of 2523 conjuncts, 141 conjuncts are in the unsatisfiable core [2024-11-27 20:26:19,523 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:26:21,513 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 1 [2024-11-27 20:26:21,524 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 9 [2024-11-27 20:26:23,629 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 5 [2024-11-27 20:26:23,637 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2024-11-27 20:26:23,908 INFO L349 Elim1Store]: treesize reduction 17, result has 22.7 percent of original size [2024-11-27 20:26:23,908 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 22 [2024-11-27 20:26:23,932 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 20:26:23,933 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2024-11-27 20:26:24,092 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-27 20:26:24,092 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 52 treesize of output 49 [2024-11-27 20:26:24,103 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 20:26:24,104 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 13 [2024-11-27 20:26:24,417 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 5 [2024-11-27 20:26:24,422 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2024-11-27 20:26:24,806 INFO L134 CoverageAnalysis]: Checked inductivity of 385 backedges. 101 proven. 38 refuted. 0 times theorem prover too weak. 246 trivial. 0 not checked. [2024-11-27 20:26:24,807 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:26:25,866 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_6830 (Array Int Int)) (v_ArrVal_6831 (Array Int Int))) (< 0 (mod (let ((.cse0 (+ c_~ppp_ldisc_group1~0.offset 1509))) (+ (select (select (store |c_#memory_$Pointer$#3.base| |c_ULTIMATE.start_ppp_async_input_~ap#1.base| v_ArrVal_6830) c_~ppp_ldisc_group1~0.base) .cse0) (select (select (store |c_#memory_$Pointer$#3.offset| |c_ULTIMATE.start_ppp_async_input_~ap#1.base| v_ArrVal_6831) c_~ppp_ldisc_group1~0.base) .cse0))) 18446744073709551616))) is different from false [2024-11-27 20:26:26,036 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1765097625] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:26:26,036 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 20:26:26,036 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 30] total 50 [2024-11-27 20:26:26,036 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [917595118] [2024-11-27 20:26:26,036 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-27 20:26:26,037 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2024-11-27 20:26:26,037 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:26:26,039 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2024-11-27 20:26:26,040 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=205, Invalid=2768, Unknown=1, NotChecked=106, Total=3080 [2024-11-27 20:26:26,041 INFO L87 Difference]: Start difference. First operand 16158 states and 22814 transitions. Second operand has 50 states, 49 states have (on average 6.63265306122449) internal successors, (325), 44 states have internal predecessors, (325), 16 states have call successors, (45), 6 states have call predecessors, (45), 10 states have return successors, (45), 18 states have call predecessors, (45), 16 states have call successors, (45) [2024-11-27 20:26:30,057 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 20:26:34,060 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 20:26:38,064 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 20:26:42,078 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 20:26:46,090 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 20:26:50,096 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 20:26:54,105 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 20:26:58,115 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 20:27:02,118 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 20:27:06,124 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 20:27:10,129 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 20:27:14,135 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 20:27:18,140 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 20:27:22,146 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 20:27:26,150 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 20:27:30,154 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 20:27:34,158 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 20:27:38,162 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 20:27:42,167 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 20:27:46,175 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 20:27:50,179 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 20:27:54,181 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 20:27:58,187 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 20:28:02,192 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 20:28:06,197 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 20:28:10,204 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 20:28:14,214 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 20:28:18,218 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 20:28:22,220 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 20:28:26,227 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 20:28:30,233 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 20:28:34,237 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 20:28:38,250 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 20:28:42,253 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 20:28:46,259 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 20:28:50,264 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 20:29:16,392 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 20:29:20,403 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 20:29:24,416 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 20:29:28,423 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 20:29:32,432 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 20:29:36,440 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 20:29:40,449 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 20:29:44,456 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 20:29:48,469 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 20:29:52,481 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 20:29:56,487 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 20:30:00,497 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 20:30:04,508 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 20:30:08,519 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 20:30:12,525 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 20:30:16,534 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 20:30:20,547 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 20:30:24,555 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 20:30:28,565 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 20:30:32,580 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 20:30:36,585 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 20:30:40,590 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 20:30:44,601 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 20:30:48,607 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 20:30:52,614 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 20:30:56,624 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 20:31:00,631 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 20:31:04,645 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 20:31:08,656 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 20:31:12,662 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 20:31:16,673 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 20:31:20,681 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 20:31:24,688 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 20:31:28,704 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 20:31:32,711 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 20:31:36,720 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 20:31:40,725 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 20:31:44,732 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 20:31:48,736 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 20:31:52,745 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 20:31:56,763 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 20:32:00,769 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 20:32:04,778 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 20:32:15,659 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 20:32:19,666 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 20:32:23,670 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 20:32:27,676 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []