./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ntdrivers/cdaudio.i.cil-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cf1a7837 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71ef0209-80f5-48a4-b6ef-42ea5a58c8a7/bin/uautomizer-verify-uTZkv6EMXl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71ef0209-80f5-48a4-b6ef-42ea5a58c8a7/bin/uautomizer-verify-uTZkv6EMXl/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71ef0209-80f5-48a4-b6ef-42ea5a58c8a7/bin/uautomizer-verify-uTZkv6EMXl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71ef0209-80f5-48a4-b6ef-42ea5a58c8a7/bin/uautomizer-verify-uTZkv6EMXl/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ntdrivers/cdaudio.i.cil-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71ef0209-80f5-48a4-b6ef-42ea5a58c8a7/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71ef0209-80f5-48a4-b6ef-42ea5a58c8a7/bin/uautomizer-verify-uTZkv6EMXl --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 32bit --witnessprinter.graph.data.programhash ad0884018313fc350052496ea1071e31a8b2c3997d36767afc87946a21697816 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 02:30:25,873 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 02:30:25,978 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71ef0209-80f5-48a4-b6ef-42ea5a58c8a7/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-12 02:30:25,985 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 02:30:25,985 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 02:30:26,023 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 02:30:26,024 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 02:30:26,025 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 02:30:26,026 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 02:30:26,027 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 02:30:26,028 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-12 02:30:26,028 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-12 02:30:26,029 INFO L153 SettingsManager]: * Use SBE=true [2023-11-12 02:30:26,030 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 02:30:26,030 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 02:30:26,031 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 02:30:26,031 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 02:30:26,032 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 02:30:26,033 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 02:30:26,033 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 02:30:26,034 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 02:30:26,034 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 02:30:26,035 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 02:30:26,035 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 02:30:26,036 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 02:30:26,036 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 02:30:26,037 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-12 02:30:26,037 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 02:30:26,038 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:30:26,038 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 02:30:26,039 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 02:30:26,039 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 02:30:26,040 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-12 02:30:26,040 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 02:30:26,041 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-12 02:30:26,041 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 02:30:26,041 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-12 02:30:26,042 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 02:30:26,042 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-12 02:30:26,043 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71ef0209-80f5-48a4-b6ef-42ea5a58c8a7/bin/uautomizer-verify-uTZkv6EMXl/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71ef0209-80f5-48a4-b6ef-42ea5a58c8a7/bin/uautomizer-verify-uTZkv6EMXl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ad0884018313fc350052496ea1071e31a8b2c3997d36767afc87946a21697816 [2023-11-12 02:30:26,384 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 02:30:26,419 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 02:30:26,422 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 02:30:26,423 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 02:30:26,424 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 02:30:26,425 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71ef0209-80f5-48a4-b6ef-42ea5a58c8a7/bin/uautomizer-verify-uTZkv6EMXl/../../sv-benchmarks/c/ntdrivers/cdaudio.i.cil-1.c [2023-11-12 02:30:29,620 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 02:30:30,211 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 02:30:30,211 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71ef0209-80f5-48a4-b6ef-42ea5a58c8a7/sv-benchmarks/c/ntdrivers/cdaudio.i.cil-1.c [2023-11-12 02:30:30,266 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71ef0209-80f5-48a4-b6ef-42ea5a58c8a7/bin/uautomizer-verify-uTZkv6EMXl/data/dfb4327ea/a047a225afc945feab373ff17d73fea4/FLAG12c23f4a8 [2023-11-12 02:30:30,284 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71ef0209-80f5-48a4-b6ef-42ea5a58c8a7/bin/uautomizer-verify-uTZkv6EMXl/data/dfb4327ea/a047a225afc945feab373ff17d73fea4 [2023-11-12 02:30:30,291 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 02:30:30,292 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 02:30:30,296 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 02:30:30,296 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 02:30:30,302 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 02:30:30,303 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:30:30" (1/1) ... [2023-11-12 02:30:30,304 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@61a8aed0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:30:30, skipping insertion in model container [2023-11-12 02:30:30,304 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:30:30" (1/1) ... [2023-11-12 02:30:30,441 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 02:30:31,216 WARN L240 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_71ef0209-80f5-48a4-b6ef-42ea5a58c8a7/sv-benchmarks/c/ntdrivers/cdaudio.i.cil-1.c[90162,90175] [2023-11-12 02:30:32,024 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:30:32,038 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 02:30:32,048 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma pack(push,8) [13] [2023-11-12 02:30:32,049 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma pack(pop) [14] [2023-11-12 02:30:32,050 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma pack(push,4) [187] [2023-11-12 02:30:32,050 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma pack(pop) [193] [2023-11-12 02:30:32,050 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma pack(push,4) [399] [2023-11-12 02:30:32,050 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma pack(pop) [452] [2023-11-12 02:30:32,051 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma pack(push,1) [471] [2023-11-12 02:30:32,051 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma pack(pop) [472] [2023-11-12 02:30:32,051 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma pack(push,4) [1153] [2023-11-12 02:30:32,051 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma pack(pop) [1326] [2023-11-12 02:30:32,052 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma pack(push,8) [1446] [2023-11-12 02:30:32,052 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma pack(pop) [1447] [2023-11-12 02:30:32,052 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma pack(1) [2284] [2023-11-12 02:30:32,052 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma pack() [2285] [2023-11-12 02:30:32,052 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma pack(push,8) [2626] [2023-11-12 02:30:32,053 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma pack(pop) [2627] [2023-11-12 02:30:32,053 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma pack(push,4) [2630] [2023-11-12 02:30:32,053 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma pack(pop) [2631] [2023-11-12 02:30:32,053 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma pack(push,4) [2632] [2023-11-12 02:30:32,053 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma pack(pop) [2633] [2023-11-12 02:30:32,054 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma pack(push,1) [2634] [2023-11-12 02:30:32,054 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma pack(pop) [2635] [2023-11-12 02:30:32,055 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma pack(push,4) [2642] [2023-11-12 02:30:32,055 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma pack(pop) [2643] [2023-11-12 02:30:32,058 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma warning(push) [2644] [2023-11-12 02:30:32,059 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma warning(disable:4035) [2645] [2023-11-12 02:30:32,059 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma warning(pop) [2646] [2023-11-12 02:30:32,059 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma warning(disable:4103) [2651] [2023-11-12 02:30:32,060 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma warning(disable:4103) [2652] [2023-11-12 02:30:32,060 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma warning(push) [2681] [2023-11-12 02:30:32,060 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma warning(disable:4035) [2682] [2023-11-12 02:30:32,060 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma warning(pop) [2683] [2023-11-12 02:30:32,060 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma warning(disable:4035) [2690] [2023-11-12 02:30:32,061 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma warning(push) [2691] [2023-11-12 02:30:32,061 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma warning(disable:4164) [2692] [2023-11-12 02:30:32,061 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma function(_enable) [2693] [2023-11-12 02:30:32,061 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma function(_disable) [2694] [2023-11-12 02:30:32,062 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma warning(pop) [2695] [2023-11-12 02:30:32,062 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma warning(disable:4103) [2696] [2023-11-12 02:30:32,062 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma warning(disable:4103) [2697] [2023-11-12 02:30:32,063 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma warning(disable:4103) [2698] [2023-11-12 02:30:32,063 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma warning(disable:4103) [2699] [2023-11-12 02:30:32,063 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma warning(disable:4103) [2753] [2023-11-12 02:30:32,063 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma warning(disable:4103) [2754] [2023-11-12 02:30:32,063 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma warning(disable:4200) [2827] [2023-11-12 02:30:32,064 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma warning(default:4200) [2828] [2023-11-12 02:30:32,064 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma warning(disable:4200) [2840] [2023-11-12 02:30:32,065 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma warning(default:4200) [2841] [2023-11-12 02:30:32,065 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma alloc_text(INIT,DriverEntry) [2910] [2023-11-12 02:30:32,065 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma alloc_text(PAGECDNC,CdAudioNECDeviceControl) [2911] [2023-11-12 02:30:32,065 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma alloc_text(PAGECDOT,CdAudioHitachiSendPauseCommand) [2912] [2023-11-12 02:30:32,065 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma alloc_text(PAGECDOT,CdAudioHitachiDeviceControl) [2913] [2023-11-12 02:30:32,066 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma alloc_text(PAGECDOT,CdAudioDenonDeviceControl) [2914] [2023-11-12 02:30:32,066 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma alloc_text(PAGECDNC,CdAudio435DeviceControl) [2915] [2023-11-12 02:30:32,066 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma alloc_text(PAGECDNC,CdAudio535DeviceControl) [2916] [2023-11-12 02:30:32,067 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma alloc_text(PAGECDOT,CdAudioPioneerDeviceControl) [2917] [2023-11-12 02:30:32,067 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma alloc_text(PAGECDNC,CdAudioPan533DeviceControl) [2918] [2023-11-12 02:30:32,068 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma alloc_text(PAGECDOT,CdAudioAtapiDeviceControl) [2919] [2023-11-12 02:30:32,068 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma alloc_text(PAGECDOT,CdAudioLionOpticsDeviceControl) [2920] [2023-11-12 02:30:32,068 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma alloc_text(PAGECDOT,CdAudioHPCdrDeviceControl) [2921] [2023-11-12 02:30:32,068 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma alloc_text(PAGECDOT,HpCdrProcessLastSession) [2922] [2023-11-12 02:30:32,069 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma alloc_text(PAGECDOT,HPCdrCompletion) [2923] [2023-11-12 02:30:32,070 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma warning(push) [7517] [2023-11-12 02:30:32,070 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma warning(disable:4035) [7518] [2023-11-12 02:30:32,070 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma warning(pop) [7519] [2023-11-12 02:30:32,072 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma warning(disable:4103) [7520] [2023-11-12 02:30:32,073 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma warning(disable:4103) [7521] [2023-11-12 02:30:32,073 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma warning(push) [7522] [2023-11-12 02:30:32,073 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma warning(disable:4035) [7523] [2023-11-12 02:30:32,073 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma warning(pop) [7524] [2023-11-12 02:30:32,073 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma warning(disable:4035) [7525] [2023-11-12 02:30:32,074 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma warning(push) [7526] [2023-11-12 02:30:32,074 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma warning(disable:4164) [7527] [2023-11-12 02:30:32,074 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma function(_enable) [7528] [2023-11-12 02:30:32,074 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma function(_disable) [7529] [2023-11-12 02:30:32,074 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma warning(pop) [7530] [2023-11-12 02:30:32,074 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma warning(disable:4103) [7531] [2023-11-12 02:30:32,075 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma warning(disable:4103) [7532] [2023-11-12 02:30:32,075 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma warning(disable:4103) [7533] [2023-11-12 02:30:32,075 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma warning(disable:4103) [7534] [2023-11-12 02:30:32,075 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma warning(disable:4103) [7535] [2023-11-12 02:30:32,075 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma warning(disable:4103) [7536] [2023-11-12 02:30:32,076 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma warning(disable:4200) [7537] [2023-11-12 02:30:32,076 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma warning(default:4200) [7538] [2023-11-12 02:30:32,206 WARN L240 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_71ef0209-80f5-48a4-b6ef-42ea5a58c8a7/sv-benchmarks/c/ntdrivers/cdaudio.i.cil-1.c[90162,90175] [2023-11-12 02:30:32,611 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:30:32,639 WARN L672 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 02:30:32,648 INFO L206 MainTranslator]: Completed translation [2023-11-12 02:30:32,649 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:30:32 WrapperNode [2023-11-12 02:30:32,649 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 02:30:32,650 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 02:30:32,650 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 02:30:32,651 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 02:30:32,659 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:30:32" (1/1) ... [2023-11-12 02:30:32,773 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:30:32" (1/1) ... [2023-11-12 02:30:32,912 INFO L138 Inliner]: procedures = 120, calls = 2195, calls flagged for inlining = 23, calls inlined = 19, statements flattened = 2497 [2023-11-12 02:30:32,913 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 02:30:32,913 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 02:30:32,913 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 02:30:32,914 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 02:30:32,924 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:30:32" (1/1) ... [2023-11-12 02:30:32,924 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:30:32" (1/1) ... [2023-11-12 02:30:32,957 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:30:32" (1/1) ... [2023-11-12 02:30:32,963 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:30:32" (1/1) ... [2023-11-12 02:30:33,118 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:30:32" (1/1) ... [2023-11-12 02:30:33,141 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:30:32" (1/1) ... [2023-11-12 02:30:33,155 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:30:32" (1/1) ... [2023-11-12 02:30:33,192 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:30:32" (1/1) ... [2023-11-12 02:30:33,209 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 02:30:33,210 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 02:30:33,210 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 02:30:33,210 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 02:30:33,211 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:30:32" (1/1) ... [2023-11-12 02:30:33,219 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:30:33,234 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71ef0209-80f5-48a4-b6ef-42ea5a58c8a7/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:30:33,249 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71ef0209-80f5-48a4-b6ef-42ea5a58c8a7/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 02:30:33,280 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71ef0209-80f5-48a4-b6ef-42ea5a58c8a7/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 02:30:33,293 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-12 02:30:33,294 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-12 02:30:33,294 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-12 02:30:33,294 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-12 02:30:33,294 INFO L130 BoogieDeclarations]: Found specification of procedure errorFn [2023-11-12 02:30:33,294 INFO L138 BoogieDeclarations]: Found implementation of procedure errorFn [2023-11-12 02:30:33,295 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-11-12 02:30:33,295 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-11-12 02:30:33,296 INFO L130 BoogieDeclarations]: Found specification of procedure MmLockPagableDataSection [2023-11-12 02:30:33,296 INFO L138 BoogieDeclarations]: Found implementation of procedure MmLockPagableDataSection [2023-11-12 02:30:33,296 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-12 02:30:33,296 INFO L130 BoogieDeclarations]: Found specification of procedure CdAudioIsPlayActive [2023-11-12 02:30:33,296 INFO L138 BoogieDeclarations]: Found implementation of procedure CdAudioIsPlayActive [2023-11-12 02:30:33,296 INFO L130 BoogieDeclarations]: Found specification of procedure IoOpenDeviceRegistryKey [2023-11-12 02:30:33,297 INFO L138 BoogieDeclarations]: Found implementation of procedure IoOpenDeviceRegistryKey [2023-11-12 02:30:33,297 INFO L130 BoogieDeclarations]: Found specification of procedure IofCompleteRequest [2023-11-12 02:30:33,297 INFO L138 BoogieDeclarations]: Found implementation of procedure IofCompleteRequest [2023-11-12 02:30:33,297 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-12 02:30:33,297 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-12 02:30:33,297 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_malloc [2023-11-12 02:30:33,298 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_malloc [2023-11-12 02:30:33,298 INFO L130 BoogieDeclarations]: Found specification of procedure IofCallDriver [2023-11-12 02:30:33,298 INFO L138 BoogieDeclarations]: Found implementation of procedure IofCallDriver [2023-11-12 02:30:33,298 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-12 02:30:33,298 INFO L130 BoogieDeclarations]: Found specification of procedure ZwClose [2023-11-12 02:30:33,298 INFO L138 BoogieDeclarations]: Found implementation of procedure ZwClose [2023-11-12 02:30:33,299 INFO L130 BoogieDeclarations]: Found specification of procedure SendSrbSynchronous [2023-11-12 02:30:33,299 INFO L138 BoogieDeclarations]: Found implementation of procedure SendSrbSynchronous [2023-11-12 02:30:33,299 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 02:30:33,300 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-12 02:30:33,300 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-12 02:30:33,300 INFO L130 BoogieDeclarations]: Found specification of procedure stubMoreProcessingRequired [2023-11-12 02:30:33,300 INFO L138 BoogieDeclarations]: Found implementation of procedure stubMoreProcessingRequired [2023-11-12 02:30:33,300 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2023-11-12 02:30:33,300 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-12 02:30:33,301 INFO L130 BoogieDeclarations]: Found specification of procedure KeSetEvent [2023-11-12 02:30:33,301 INFO L138 BoogieDeclarations]: Found implementation of procedure KeSetEvent [2023-11-12 02:30:33,301 INFO L130 BoogieDeclarations]: Found specification of procedure CdAudioSignalCompletion [2023-11-12 02:30:33,302 INFO L138 BoogieDeclarations]: Found implementation of procedure CdAudioSignalCompletion [2023-11-12 02:30:33,302 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-12 02:30:33,303 INFO L130 BoogieDeclarations]: Found specification of procedure KeWaitForSingleObject [2023-11-12 02:30:33,303 INFO L138 BoogieDeclarations]: Found implementation of procedure KeWaitForSingleObject [2023-11-12 02:30:33,303 INFO L130 BoogieDeclarations]: Found specification of procedure HPCdrCompletion [2023-11-12 02:30:33,304 INFO L138 BoogieDeclarations]: Found implementation of procedure HPCdrCompletion [2023-11-12 02:30:33,304 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 02:30:33,304 INFO L130 BoogieDeclarations]: Found specification of procedure CdAudioSendToNextDriver [2023-11-12 02:30:33,304 INFO L138 BoogieDeclarations]: Found implementation of procedure CdAudioSendToNextDriver [2023-11-12 02:30:33,304 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-12 02:30:33,304 INFO L130 BoogieDeclarations]: Found specification of procedure ExAllocatePoolWithTag [2023-11-12 02:30:33,305 INFO L138 BoogieDeclarations]: Found implementation of procedure ExAllocatePoolWithTag [2023-11-12 02:30:33,305 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 02:30:33,305 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 02:30:33,305 INFO L130 BoogieDeclarations]: Found specification of procedure CdAudioForwardIrpSynchronous [2023-11-12 02:30:33,306 INFO L138 BoogieDeclarations]: Found implementation of procedure CdAudioForwardIrpSynchronous [2023-11-12 02:30:33,807 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 02:30:33,809 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 02:30:34,008 WARN L817 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-11-12 02:30:34,039 INFO L770 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##16: assume !false; [2023-11-12 02:30:34,048 INFO L770 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##15: assume false; [2023-11-12 02:30:34,667 WARN L817 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-11-12 02:30:34,718 INFO L770 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##21: assume !false; [2023-11-12 02:30:34,718 INFO L770 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##20: assume false; [2023-11-12 02:30:34,767 WARN L817 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-11-12 02:30:34,772 WARN L817 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-11-12 02:30:34,777 WARN L817 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-11-12 02:30:34,797 WARN L817 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-11-12 02:30:34,818 WARN L817 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-11-12 02:30:34,826 WARN L817 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-11-12 02:30:45,565 INFO L770 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##202: assume !false; [2023-11-12 02:30:45,565 INFO L770 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##201: assume false; [2023-11-12 02:30:45,566 INFO L770 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##600: assume !false; [2023-11-12 02:30:45,566 INFO L770 $ProcedureCfgBuilder]: dead code at ProgramPoint L3709: CdAudioPnp_#res#1 := 0; [2023-11-12 02:30:45,566 INFO L770 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##65: assume !false; [2023-11-12 02:30:45,566 INFO L770 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##64: assume false; [2023-11-12 02:30:45,566 INFO L770 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##43: assume !false; [2023-11-12 02:30:45,566 INFO L770 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##42: assume false; [2023-11-12 02:30:45,566 INFO L770 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##32: assume false; [2023-11-12 02:30:45,567 INFO L770 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##33: assume !false; [2023-11-12 02:30:45,567 INFO L770 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##349: assume !false; [2023-11-12 02:30:45,567 INFO L770 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##348: assume false; [2023-11-12 02:30:45,567 INFO L770 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##599: assume false; [2023-11-12 02:30:45,623 WARN L817 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-11-12 02:30:45,629 INFO L770 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2023-11-12 02:30:45,629 INFO L770 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2023-11-12 02:30:45,665 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 02:30:45,685 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 02:30:45,685 INFO L302 CfgBuilder]: Removed 6 assume(true) statements. [2023-11-12 02:30:45,689 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:30:45 BoogieIcfgContainer [2023-11-12 02:30:45,690 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 02:30:45,694 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 02:30:45,694 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 02:30:45,698 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 02:30:45,698 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 02:30:30" (1/3) ... [2023-11-12 02:30:45,699 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@524bda66 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:30:45, skipping insertion in model container [2023-11-12 02:30:45,699 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:30:32" (2/3) ... [2023-11-12 02:30:45,701 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@524bda66 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:30:45, skipping insertion in model container [2023-11-12 02:30:45,701 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:30:45" (3/3) ... [2023-11-12 02:30:45,703 INFO L112 eAbstractionObserver]: Analyzing ICFG cdaudio.i.cil-1.c [2023-11-12 02:30:45,724 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 02:30:45,724 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-12 02:30:45,815 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 02:30:45,823 INFO L357 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, mHoare=true, 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;@7e331c68, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-12 02:30:45,823 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-12 02:30:45,834 INFO L276 IsEmpty]: Start isEmpty. Operand has 670 states, 536 states have (on average 1.5354477611940298) internal successors, (823), 555 states have internal predecessors, (823), 113 states have call successors, (113), 19 states have call predecessors, (113), 19 states have return successors, (113), 108 states have call predecessors, (113), 113 states have call successors, (113) [2023-11-12 02:30:45,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-11-12 02:30:45,844 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:30:45,845 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:30:45,845 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:30:45,852 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:30:45,853 INFO L85 PathProgramCache]: Analyzing trace with hash 733970445, now seen corresponding path program 1 times [2023-11-12 02:30:45,862 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:30:45,863 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [229280538] [2023-11-12 02:30:45,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:30:45,864 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:30:46,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:30:46,501 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:30:46,502 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:30:46,502 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [229280538] [2023-11-12 02:30:46,503 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [229280538] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:30:46,503 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:30:46,503 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 02:30:46,505 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1863844739] [2023-11-12 02:30:46,506 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:30:46,510 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 02:30:46,511 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:30:46,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 02:30:46,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:30:46,565 INFO L87 Difference]: Start difference. First operand has 670 states, 536 states have (on average 1.5354477611940298) internal successors, (823), 555 states have internal predecessors, (823), 113 states have call successors, (113), 19 states have call predecessors, (113), 19 states have return successors, (113), 108 states have call predecessors, (113), 113 states have call successors, (113) Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:30:46,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:30:46,981 INFO L93 Difference]: Finished difference Result 1343 states and 2153 transitions. [2023-11-12 02:30:46,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 02:30:46,983 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2023-11-12 02:30:46,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:30:47,007 INFO L225 Difference]: With dead ends: 1343 [2023-11-12 02:30:47,008 INFO L226 Difference]: Without dead ends: 663 [2023-11-12 02:30:47,020 INFO L412 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 [2023-11-12 02:30:47,025 INFO L413 NwaCegarLoop]: 1012 mSDtfsCounter, 20 mSDsluCounter, 951 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 1963 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-12 02:30:47,027 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 1963 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-12 02:30:47,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 663 states. [2023-11-12 02:30:47,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 663 to 663. [2023-11-12 02:30:47,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 663 states, 531 states have (on average 1.4952919020715632) internal successors, (794), 548 states have internal predecessors, (794), 113 states have call successors, (113), 19 states have call predecessors, (113), 18 states have return successors, (97), 97 states have call predecessors, (97), 97 states have call successors, (97) [2023-11-12 02:30:47,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 663 states to 663 states and 1004 transitions. [2023-11-12 02:30:47,144 INFO L78 Accepts]: Start accepts. Automaton has 663 states and 1004 transitions. Word has length 19 [2023-11-12 02:30:47,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:30:47,145 INFO L495 AbstractCegarLoop]: Abstraction has 663 states and 1004 transitions. [2023-11-12 02:30:47,145 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:30:47,145 INFO L276 IsEmpty]: Start isEmpty. Operand 663 states and 1004 transitions. [2023-11-12 02:30:47,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-11-12 02:30:47,147 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:30:47,147 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:30:47,147 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-12 02:30:47,148 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:30:47,148 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:30:47,149 INFO L85 PathProgramCache]: Analyzing trace with hash 411452230, now seen corresponding path program 1 times [2023-11-12 02:30:47,149 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:30:47,149 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [242717616] [2023-11-12 02:30:47,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:30:47,150 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:30:47,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:30:47,297 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:30:47,298 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:30:47,298 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [242717616] [2023-11-12 02:30:47,299 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [242717616] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:30:47,299 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:30:47,299 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 02:30:47,299 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1713862830] [2023-11-12 02:30:47,300 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:30:47,301 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 02:30:47,301 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:30:47,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 02:30:47,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:30:47,303 INFO L87 Difference]: Start difference. First operand 663 states and 1004 transitions. Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:30:47,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:30:47,525 INFO L93 Difference]: Finished difference Result 1188 states and 1785 transitions. [2023-11-12 02:30:47,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 02:30:47,525 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2023-11-12 02:30:47,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:30:47,535 INFO L225 Difference]: With dead ends: 1188 [2023-11-12 02:30:47,535 INFO L226 Difference]: Without dead ends: 941 [2023-11-12 02:30:47,537 INFO L412 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 [2023-11-12 02:30:47,539 INFO L413 NwaCegarLoop]: 1325 mSDtfsCounter, 916 mSDsluCounter, 422 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 916 SdHoareTripleChecker+Valid, 1747 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-12 02:30:47,539 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [916 Valid, 1747 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-12 02:30:47,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 941 states. [2023-11-12 02:30:47,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 941 to 922. [2023-11-12 02:30:47,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 922 states, 747 states have (on average 1.4752342704149932) internal successors, (1102), 750 states have internal predecessors, (1102), 142 states have call successors, (142), 33 states have call predecessors, (142), 32 states have return successors, (146), 140 states have call predecessors, (146), 130 states have call successors, (146) [2023-11-12 02:30:47,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 922 states to 922 states and 1390 transitions. [2023-11-12 02:30:47,607 INFO L78 Accepts]: Start accepts. Automaton has 922 states and 1390 transitions. Word has length 21 [2023-11-12 02:30:47,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:30:47,608 INFO L495 AbstractCegarLoop]: Abstraction has 922 states and 1390 transitions. [2023-11-12 02:30:47,608 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:30:47,608 INFO L276 IsEmpty]: Start isEmpty. Operand 922 states and 1390 transitions. [2023-11-12 02:30:47,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-11-12 02:30:47,611 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:30:47,611 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:30:47,611 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-12 02:30:47,612 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:30:47,612 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:30:47,612 INFO L85 PathProgramCache]: Analyzing trace with hash 1730038143, now seen corresponding path program 1 times [2023-11-12 02:30:47,613 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:30:47,613 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [927146242] [2023-11-12 02:30:47,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:30:47,613 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:30:47,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:30:47,817 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:30:47,818 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:30:47,818 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [927146242] [2023-11-12 02:30:47,818 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [927146242] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:30:47,818 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:30:47,819 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 02:30:47,819 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1083093762] [2023-11-12 02:30:47,819 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:30:47,820 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 02:30:47,820 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:30:47,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 02:30:47,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:30:47,821 INFO L87 Difference]: Start difference. First operand 922 states and 1390 transitions. Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:30:48,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:30:48,055 INFO L93 Difference]: Finished difference Result 1953 states and 3013 transitions. [2023-11-12 02:30:48,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 02:30:48,055 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2023-11-12 02:30:48,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:30:48,070 INFO L225 Difference]: With dead ends: 1953 [2023-11-12 02:30:48,070 INFO L226 Difference]: Without dead ends: 1540 [2023-11-12 02:30:48,073 INFO L412 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 [2023-11-12 02:30:48,074 INFO L413 NwaCegarLoop]: 1553 mSDtfsCounter, 647 mSDsluCounter, 944 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 647 SdHoareTripleChecker+Valid, 2497 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 02:30:48,075 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [647 Valid, 2497 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 02:30:48,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1540 states. [2023-11-12 02:30:48,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1540 to 1096. [2023-11-12 02:30:48,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1096 states, 879 states have (on average 1.465301478953356) internal successors, (1288), 881 states have internal predecessors, (1288), 170 states have call successors, (170), 46 states have call predecessors, (170), 46 states have return successors, (217), 170 states have call predecessors, (217), 158 states have call successors, (217) [2023-11-12 02:30:48,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1096 states to 1096 states and 1675 transitions. [2023-11-12 02:30:48,163 INFO L78 Accepts]: Start accepts. Automaton has 1096 states and 1675 transitions. Word has length 28 [2023-11-12 02:30:48,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:30:48,164 INFO L495 AbstractCegarLoop]: Abstraction has 1096 states and 1675 transitions. [2023-11-12 02:30:48,164 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:30:48,164 INFO L276 IsEmpty]: Start isEmpty. Operand 1096 states and 1675 transitions. [2023-11-12 02:30:48,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-11-12 02:30:48,166 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:30:48,166 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:30:48,167 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-12 02:30:48,167 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:30:48,167 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:30:48,168 INFO L85 PathProgramCache]: Analyzing trace with hash 35308583, now seen corresponding path program 1 times [2023-11-12 02:30:48,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:30:48,168 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1540479846] [2023-11-12 02:30:48,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:30:48,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:30:48,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:30:48,368 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:30:48,369 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:30:48,369 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1540479846] [2023-11-12 02:30:48,369 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1540479846] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:30:48,369 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:30:48,370 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 02:30:48,370 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [926616477] [2023-11-12 02:30:48,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:30:48,371 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 02:30:48,371 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:30:48,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 02:30:48,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:30:48,372 INFO L87 Difference]: Start difference. First operand 1096 states and 1675 transitions. Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:30:48,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:30:48,492 INFO L93 Difference]: Finished difference Result 1758 states and 2641 transitions. [2023-11-12 02:30:48,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 02:30:48,493 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2023-11-12 02:30:48,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:30:48,505 INFO L225 Difference]: With dead ends: 1758 [2023-11-12 02:30:48,505 INFO L226 Difference]: Without dead ends: 1626 [2023-11-12 02:30:48,507 INFO L412 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 [2023-11-12 02:30:48,508 INFO L413 NwaCegarLoop]: 1212 mSDtfsCounter, 905 mSDsluCounter, 424 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 905 SdHoareTripleChecker+Valid, 1636 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-12 02:30:48,509 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [905 Valid, 1636 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 02:30:48,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1626 states. [2023-11-12 02:30:48,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1626 to 1553. [2023-11-12 02:30:48,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1553 states, 1249 states have (on average 1.466773418734988) internal successors, (1832), 1247 states have internal predecessors, (1832), 227 states have call successors, (227), 72 states have call predecessors, (227), 76 states have return successors, (298), 233 states have call predecessors, (298), 218 states have call successors, (298) [2023-11-12 02:30:48,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1553 states to 1553 states and 2357 transitions. [2023-11-12 02:30:48,626 INFO L78 Accepts]: Start accepts. Automaton has 1553 states and 2357 transitions. Word has length 28 [2023-11-12 02:30:48,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:30:48,626 INFO L495 AbstractCegarLoop]: Abstraction has 1553 states and 2357 transitions. [2023-11-12 02:30:48,626 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:30:48,627 INFO L276 IsEmpty]: Start isEmpty. Operand 1553 states and 2357 transitions. [2023-11-12 02:30:48,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2023-11-12 02:30:48,628 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:30:48,628 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:30:48,629 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-12 02:30:48,629 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:30:48,630 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:30:48,630 INFO L85 PathProgramCache]: Analyzing trace with hash 1852318565, now seen corresponding path program 1 times [2023-11-12 02:30:48,630 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:30:48,630 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1697197027] [2023-11-12 02:30:48,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:30:48,631 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:30:48,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:30:48,886 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:30:48,887 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:30:48,887 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1697197027] [2023-11-12 02:30:48,887 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1697197027] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:30:48,887 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:30:48,887 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-12 02:30:48,888 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1394720645] [2023-11-12 02:30:48,888 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:30:48,888 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 02:30:48,889 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:30:48,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 02:30:48,890 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-12 02:30:48,890 INFO L87 Difference]: Start difference. First operand 1553 states and 2357 transitions. Second operand has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:30:49,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:30:49,890 INFO L93 Difference]: Finished difference Result 2812 states and 4303 transitions. [2023-11-12 02:30:49,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-12 02:30:49,891 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2023-11-12 02:30:49,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:30:49,907 INFO L225 Difference]: With dead ends: 2812 [2023-11-12 02:30:49,907 INFO L226 Difference]: Without dead ends: 1863 [2023-11-12 02:30:49,914 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-12 02:30:49,917 INFO L413 NwaCegarLoop]: 1231 mSDtfsCounter, 1603 mSDsluCounter, 322 mSDsCounter, 0 mSdLazyCounter, 174 mSolverCounterSat, 315 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1605 SdHoareTripleChecker+Valid, 1553 SdHoareTripleChecker+Invalid, 489 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 315 IncrementalHoareTripleChecker+Valid, 174 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-12 02:30:49,917 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1605 Valid, 1553 Invalid, 489 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [315 Valid, 174 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-12 02:30:49,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1863 states. [2023-11-12 02:30:50,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1863 to 1541. [2023-11-12 02:30:50,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1541 states, 1239 states have (on average 1.4640839386602098) internal successors, (1814), 1237 states have internal predecessors, (1814), 225 states have call successors, (225), 70 states have call predecessors, (225), 76 states have return successors, (294), 233 states have call predecessors, (294), 216 states have call successors, (294) [2023-11-12 02:30:50,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1541 states to 1541 states and 2333 transitions. [2023-11-12 02:30:50,055 INFO L78 Accepts]: Start accepts. Automaton has 1541 states and 2333 transitions. Word has length 29 [2023-11-12 02:30:50,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:30:50,056 INFO L495 AbstractCegarLoop]: Abstraction has 1541 states and 2333 transitions. [2023-11-12 02:30:50,056 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:30:50,056 INFO L276 IsEmpty]: Start isEmpty. Operand 1541 states and 2333 transitions. [2023-11-12 02:30:50,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-11-12 02:30:50,060 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:30:50,060 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:30:50,061 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-12 02:30:50,061 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:30:50,062 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:30:50,063 INFO L85 PathProgramCache]: Analyzing trace with hash -1520804067, now seen corresponding path program 1 times [2023-11-12 02:30:50,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:30:50,065 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1257385658] [2023-11-12 02:30:50,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:30:50,071 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:30:50,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:30:50,214 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:30:50,214 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:30:50,214 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1257385658] [2023-11-12 02:30:50,214 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1257385658] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:30:50,215 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:30:50,215 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 02:30:50,215 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [674787715] [2023-11-12 02:30:50,215 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:30:50,215 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 02:30:50,216 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:30:50,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 02:30:50,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:30:50,217 INFO L87 Difference]: Start difference. First operand 1541 states and 2333 transitions. Second operand has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:30:50,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:30:50,368 INFO L93 Difference]: Finished difference Result 1544 states and 2335 transitions. [2023-11-12 02:30:50,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 02:30:50,368 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2023-11-12 02:30:50,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:30:50,379 INFO L225 Difference]: With dead ends: 1544 [2023-11-12 02:30:50,379 INFO L226 Difference]: Without dead ends: 1540 [2023-11-12 02:30:50,381 INFO L412 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 [2023-11-12 02:30:50,383 INFO L413 NwaCegarLoop]: 963 mSDtfsCounter, 34 mSDsluCounter, 906 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 1869 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 02:30:50,385 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 1869 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 02:30:50,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1540 states. [2023-11-12 02:30:50,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1540 to 1540. [2023-11-12 02:30:50,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1540 states, 1239 states have (on average 1.4624697336561743) internal successors, (1812), 1236 states have internal predecessors, (1812), 224 states have call successors, (224), 70 states have call predecessors, (224), 76 states have return successors, (294), 233 states have call predecessors, (294), 216 states have call successors, (294) [2023-11-12 02:30:50,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1540 states to 1540 states and 2330 transitions. [2023-11-12 02:30:50,515 INFO L78 Accepts]: Start accepts. Automaton has 1540 states and 2330 transitions. Word has length 28 [2023-11-12 02:30:50,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:30:50,517 INFO L495 AbstractCegarLoop]: Abstraction has 1540 states and 2330 transitions. [2023-11-12 02:30:50,518 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:30:50,518 INFO L276 IsEmpty]: Start isEmpty. Operand 1540 states and 2330 transitions. [2023-11-12 02:30:50,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2023-11-12 02:30:50,521 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:30:50,521 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:30:50,521 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-12 02:30:50,522 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:30:50,522 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:30:50,522 INFO L85 PathProgramCache]: Analyzing trace with hash -381783010, now seen corresponding path program 1 times [2023-11-12 02:30:50,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:30:50,522 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1765587120] [2023-11-12 02:30:50,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:30:50,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:30:50,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:30:50,720 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:30:50,721 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:30:50,721 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1765587120] [2023-11-12 02:30:50,721 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1765587120] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:30:50,721 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:30:50,721 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-12 02:30:50,721 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1526973266] [2023-11-12 02:30:50,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:30:50,722 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 02:30:50,722 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:30:50,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 02:30:50,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-12 02:30:50,723 INFO L87 Difference]: Start difference. First operand 1540 states and 2330 transitions. Second operand has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:30:51,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:30:51,373 INFO L93 Difference]: Finished difference Result 1601 states and 2410 transitions. [2023-11-12 02:30:51,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-12 02:30:51,374 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2023-11-12 02:30:51,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:30:51,390 INFO L225 Difference]: With dead ends: 1601 [2023-11-12 02:30:51,390 INFO L226 Difference]: Without dead ends: 1557 [2023-11-12 02:30:51,391 INFO L412 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 [2023-11-12 02:30:51,396 INFO L413 NwaCegarLoop]: 959 mSDtfsCounter, 1000 mSDsluCounter, 735 mSDsCounter, 0 mSdLazyCounter, 259 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1000 SdHoareTripleChecker+Valid, 1694 SdHoareTripleChecker+Invalid, 275 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 259 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-12 02:30:51,396 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1000 Valid, 1694 Invalid, 275 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 259 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-12 02:30:51,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1557 states. [2023-11-12 02:30:51,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1557 to 1540. [2023-11-12 02:30:51,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1540 states, 1239 states have (on average 1.4608555286521387) internal successors, (1810), 1236 states have internal predecessors, (1810), 224 states have call successors, (224), 70 states have call predecessors, (224), 76 states have return successors, (294), 233 states have call predecessors, (294), 216 states have call successors, (294) [2023-11-12 02:30:51,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1540 states to 1540 states and 2328 transitions. [2023-11-12 02:30:51,537 INFO L78 Accepts]: Start accepts. Automaton has 1540 states and 2328 transitions. Word has length 37 [2023-11-12 02:30:51,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:30:51,538 INFO L495 AbstractCegarLoop]: Abstraction has 1540 states and 2328 transitions. [2023-11-12 02:30:51,538 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:30:51,538 INFO L276 IsEmpty]: Start isEmpty. Operand 1540 states and 2328 transitions. [2023-11-12 02:30:51,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2023-11-12 02:30:51,545 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:30:51,546 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:30:51,546 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-12 02:30:51,546 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:30:51,546 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:30:51,547 INFO L85 PathProgramCache]: Analyzing trace with hash 1692234425, now seen corresponding path program 1 times [2023-11-12 02:30:51,547 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:30:51,547 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1572214902] [2023-11-12 02:30:51,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:30:51,547 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:30:51,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:30:51,796 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:30:51,796 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:30:51,796 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1572214902] [2023-11-12 02:30:51,796 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1572214902] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:30:51,797 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:30:51,797 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-12 02:30:51,797 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1898945968] [2023-11-12 02:30:51,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:30:51,797 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 02:30:51,798 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:30:51,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 02:30:51,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-12 02:30:51,798 INFO L87 Difference]: Start difference. First operand 1540 states and 2328 transitions. Second operand has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:30:52,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:30:52,402 INFO L93 Difference]: Finished difference Result 1591 states and 2393 transitions. [2023-11-12 02:30:52,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-12 02:30:52,403 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2023-11-12 02:30:52,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:30:52,414 INFO L225 Difference]: With dead ends: 1591 [2023-11-12 02:30:52,414 INFO L226 Difference]: Without dead ends: 1519 [2023-11-12 02:30:52,415 INFO L412 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 [2023-11-12 02:30:52,416 INFO L413 NwaCegarLoop]: 958 mSDtfsCounter, 979 mSDsluCounter, 735 mSDsCounter, 0 mSdLazyCounter, 239 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 979 SdHoareTripleChecker+Valid, 1693 SdHoareTripleChecker+Invalid, 247 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 239 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-12 02:30:52,416 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [979 Valid, 1693 Invalid, 247 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 239 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-12 02:30:52,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1519 states. [2023-11-12 02:30:52,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1519 to 1517. [2023-11-12 02:30:52,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1517 states, 1218 states have (on average 1.4655172413793103) internal successors, (1785), 1222 states have internal predecessors, (1785), 224 states have call successors, (224), 70 states have call predecessors, (224), 74 states have return successors, (285), 224 states have call predecessors, (285), 216 states have call successors, (285) [2023-11-12 02:30:52,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1517 states to 1517 states and 2294 transitions. [2023-11-12 02:30:52,553 INFO L78 Accepts]: Start accepts. Automaton has 1517 states and 2294 transitions. Word has length 39 [2023-11-12 02:30:52,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:30:52,553 INFO L495 AbstractCegarLoop]: Abstraction has 1517 states and 2294 transitions. [2023-11-12 02:30:52,553 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:30:52,553 INFO L276 IsEmpty]: Start isEmpty. Operand 1517 states and 2294 transitions. [2023-11-12 02:30:52,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2023-11-12 02:30:52,555 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:30:52,555 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:30:52,555 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-12 02:30:52,555 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:30:52,555 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:30:52,555 INFO L85 PathProgramCache]: Analyzing trace with hash 1118245305, now seen corresponding path program 1 times [2023-11-12 02:30:52,556 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:30:52,556 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1161209312] [2023-11-12 02:30:52,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:30:52,556 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:30:52,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:30:52,820 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:30:52,820 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:30:52,820 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1161209312] [2023-11-12 02:30:52,820 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1161209312] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:30:52,820 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:30:52,821 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-12 02:30:52,821 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [302683766] [2023-11-12 02:30:52,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:30:52,822 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 02:30:52,822 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:30:52,822 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 02:30:52,823 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-12 02:30:52,823 INFO L87 Difference]: Start difference. First operand 1517 states and 2294 transitions. Second operand has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:30:53,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:30:53,680 INFO L93 Difference]: Finished difference Result 1804 states and 2717 transitions. [2023-11-12 02:30:53,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-12 02:30:53,681 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2023-11-12 02:30:53,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:30:53,695 INFO L225 Difference]: With dead ends: 1804 [2023-11-12 02:30:53,696 INFO L226 Difference]: Without dead ends: 1795 [2023-11-12 02:30:53,697 INFO L412 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 [2023-11-12 02:30:53,700 INFO L413 NwaCegarLoop]: 1265 mSDtfsCounter, 1233 mSDsluCounter, 731 mSDsCounter, 0 mSdLazyCounter, 250 mSolverCounterSat, 83 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1242 SdHoareTripleChecker+Valid, 1996 SdHoareTripleChecker+Invalid, 333 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 83 IncrementalHoareTripleChecker+Valid, 250 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-12 02:30:53,700 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1242 Valid, 1996 Invalid, 333 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [83 Valid, 250 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-12 02:30:53,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1795 states. [2023-11-12 02:30:53,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1795 to 1543. [2023-11-12 02:30:53,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1543 states, 1242 states have (on average 1.461352657004831) internal successors, (1815), 1247 states have internal predecessors, (1815), 224 states have call successors, (224), 70 states have call predecessors, (224), 76 states have return successors, (287), 225 states have call predecessors, (287), 216 states have call successors, (287) [2023-11-12 02:30:53,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1543 states to 1543 states and 2326 transitions. [2023-11-12 02:30:53,888 INFO L78 Accepts]: Start accepts. Automaton has 1543 states and 2326 transitions. Word has length 39 [2023-11-12 02:30:53,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:30:53,888 INFO L495 AbstractCegarLoop]: Abstraction has 1543 states and 2326 transitions. [2023-11-12 02:30:53,888 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:30:53,889 INFO L276 IsEmpty]: Start isEmpty. Operand 1543 states and 2326 transitions. [2023-11-12 02:30:53,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2023-11-12 02:30:53,892 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:30:53,893 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:30:53,893 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-12 02:30:53,893 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:30:53,898 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:30:53,899 INFO L85 PathProgramCache]: Analyzing trace with hash 1117968475, now seen corresponding path program 1 times [2023-11-12 02:30:53,899 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:30:53,899 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1096882038] [2023-11-12 02:30:53,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:30:53,900 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:30:53,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:30:54,022 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:30:54,023 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:30:54,023 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1096882038] [2023-11-12 02:30:54,023 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1096882038] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:30:54,023 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:30:54,023 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 02:30:54,024 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [860944311] [2023-11-12 02:30:54,024 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:30:54,024 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 02:30:54,024 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:30:54,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 02:30:54,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:30:54,025 INFO L87 Difference]: Start difference. First operand 1543 states and 2326 transitions. Second operand has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:30:54,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:30:54,183 INFO L93 Difference]: Finished difference Result 2145 states and 3213 transitions. [2023-11-12 02:30:54,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 02:30:54,184 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2023-11-12 02:30:54,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:30:54,201 INFO L225 Difference]: With dead ends: 2145 [2023-11-12 02:30:54,201 INFO L226 Difference]: Without dead ends: 2117 [2023-11-12 02:30:54,203 INFO L412 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 [2023-11-12 02:30:54,204 INFO L413 NwaCegarLoop]: 964 mSDtfsCounter, 951 mSDsluCounter, 373 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 951 SdHoareTripleChecker+Valid, 1337 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-12 02:30:54,205 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [951 Valid, 1337 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 02:30:54,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2117 states. [2023-11-12 02:30:54,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2117 to 2098. [2023-11-12 02:30:54,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2098 states, 1690 states have (on average 1.4615384615384615) internal successors, (2470), 1693 states have internal predecessors, (2470), 294 states have call successors, (294), 100 states have call predecessors, (294), 113 states have return successors, (386), 304 states have call predecessors, (386), 286 states have call successors, (386) [2023-11-12 02:30:54,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2098 states to 2098 states and 3150 transitions. [2023-11-12 02:30:54,429 INFO L78 Accepts]: Start accepts. Automaton has 2098 states and 3150 transitions. Word has length 39 [2023-11-12 02:30:54,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:30:54,430 INFO L495 AbstractCegarLoop]: Abstraction has 2098 states and 3150 transitions. [2023-11-12 02:30:54,430 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:30:54,430 INFO L276 IsEmpty]: Start isEmpty. Operand 2098 states and 3150 transitions. [2023-11-12 02:30:54,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2023-11-12 02:30:54,433 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:30:54,433 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:30:54,433 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-12 02:30:54,434 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:30:54,434 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:30:54,434 INFO L85 PathProgramCache]: Analyzing trace with hash 1103623566, now seen corresponding path program 1 times [2023-11-12 02:30:54,435 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:30:54,435 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1635198956] [2023-11-12 02:30:54,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:30:54,435 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:30:54,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:30:54,595 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:30:54,596 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:30:54,596 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1635198956] [2023-11-12 02:30:54,596 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1635198956] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:30:54,596 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:30:54,596 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 02:30:54,597 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [702772335] [2023-11-12 02:30:54,597 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:30:54,597 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 02:30:54,597 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:30:54,598 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 02:30:54,598 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:30:54,598 INFO L87 Difference]: Start difference. First operand 2098 states and 3150 transitions. Second operand has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:30:54,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:30:54,847 INFO L93 Difference]: Finished difference Result 2608 states and 3915 transitions. [2023-11-12 02:30:54,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 02:30:54,847 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2023-11-12 02:30:54,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:30:54,873 INFO L225 Difference]: With dead ends: 2608 [2023-11-12 02:30:54,873 INFO L226 Difference]: Without dead ends: 2595 [2023-11-12 02:30:54,875 INFO L412 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 [2023-11-12 02:30:54,876 INFO L413 NwaCegarLoop]: 1280 mSDtfsCounter, 363 mSDsluCounter, 895 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 363 SdHoareTripleChecker+Valid, 2175 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 02:30:54,876 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [363 Valid, 2175 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 02:30:54,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2595 states. [2023-11-12 02:30:55,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2595 to 2095. [2023-11-12 02:30:55,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2095 states, 1687 states have (on average 1.4599881446354475) internal successors, (2463), 1690 states have internal predecessors, (2463), 294 states have call successors, (294), 100 states have call predecessors, (294), 113 states have return successors, (386), 304 states have call predecessors, (386), 286 states have call successors, (386) [2023-11-12 02:30:55,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2095 states to 2095 states and 3143 transitions. [2023-11-12 02:30:55,063 INFO L78 Accepts]: Start accepts. Automaton has 2095 states and 3143 transitions. Word has length 39 [2023-11-12 02:30:55,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:30:55,064 INFO L495 AbstractCegarLoop]: Abstraction has 2095 states and 3143 transitions. [2023-11-12 02:30:55,064 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:30:55,065 INFO L276 IsEmpty]: Start isEmpty. Operand 2095 states and 3143 transitions. [2023-11-12 02:30:55,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2023-11-12 02:30:55,067 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:30:55,067 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:30:55,068 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-12 02:30:55,068 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:30:55,068 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:30:55,069 INFO L85 PathProgramCache]: Analyzing trace with hash 305744670, now seen corresponding path program 1 times [2023-11-12 02:30:55,069 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:30:55,069 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1150281182] [2023-11-12 02:30:55,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:30:55,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:30:55,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:30:55,363 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:30:55,363 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:30:55,363 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1150281182] [2023-11-12 02:30:55,363 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1150281182] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:30:55,364 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:30:55,364 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-12 02:30:55,364 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [290982660] [2023-11-12 02:30:55,364 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:30:55,365 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-12 02:30:55,365 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:30:55,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-12 02:30:55,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-12 02:30:55,366 INFO L87 Difference]: Start difference. First operand 2095 states and 3143 transitions. Second operand has 6 states, 6 states have (on average 6.5) internal successors, (39), 6 states have internal predecessors, (39), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:30:55,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:30:55,624 INFO L93 Difference]: Finished difference Result 2107 states and 3155 transitions. [2023-11-12 02:30:55,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-12 02:30:55,624 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 6 states have internal predecessors, (39), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 40 [2023-11-12 02:30:55,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:30:55,640 INFO L225 Difference]: With dead ends: 2107 [2023-11-12 02:30:55,640 INFO L226 Difference]: Without dead ends: 2079 [2023-11-12 02:30:55,643 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2023-11-12 02:30:55,643 INFO L413 NwaCegarLoop]: 965 mSDtfsCounter, 23 mSDsluCounter, 3811 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 4776 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 02:30:55,644 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 4776 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 02:30:55,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2079 states. [2023-11-12 02:30:55,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2079 to 2079. [2023-11-12 02:30:55,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2079 states, 1671 states have (on average 1.4625972471573907) internal successors, (2444), 1674 states have internal predecessors, (2444), 294 states have call successors, (294), 100 states have call predecessors, (294), 113 states have return successors, (386), 304 states have call predecessors, (386), 286 states have call successors, (386) [2023-11-12 02:30:55,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2079 states to 2079 states and 3124 transitions. [2023-11-12 02:30:55,837 INFO L78 Accepts]: Start accepts. Automaton has 2079 states and 3124 transitions. Word has length 40 [2023-11-12 02:30:55,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:30:55,838 INFO L495 AbstractCegarLoop]: Abstraction has 2079 states and 3124 transitions. [2023-11-12 02:30:55,838 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 6 states have internal predecessors, (39), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:30:55,839 INFO L276 IsEmpty]: Start isEmpty. Operand 2079 states and 3124 transitions. [2023-11-12 02:30:55,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2023-11-12 02:30:55,841 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:30:55,842 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:30:55,842 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-12 02:30:55,842 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:30:55,842 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:30:55,843 INFO L85 PathProgramCache]: Analyzing trace with hash 1432531080, now seen corresponding path program 1 times [2023-11-12 02:30:55,843 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:30:55,843 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1018839599] [2023-11-12 02:30:55,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:30:55,844 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:30:55,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:30:56,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-12 02:30:56,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:30:56,119 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:30:56,119 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:30:56,120 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1018839599] [2023-11-12 02:30:56,120 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1018839599] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:30:56,120 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:30:56,120 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-12 02:30:56,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [598114620] [2023-11-12 02:30:56,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:30:56,121 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-12 02:30:56,121 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:30:56,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-12 02:30:56,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-12 02:30:56,124 INFO L87 Difference]: Start difference. First operand 2079 states and 3124 transitions. Second operand has 5 states, 5 states have (on average 7.8) internal successors, (39), 4 states have internal predecessors, (39), 3 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-12 02:30:59,897 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-12 02:31:01,037 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-12 02:31:05,665 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-12 02:31:07,747 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-12 02:31:08,799 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-12 02:31:10,975 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-12 02:31:11,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:31:11,735 INFO L93 Difference]: Finished difference Result 2946 states and 4360 transitions. [2023-11-12 02:31:11,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-12 02:31:11,740 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 4 states have internal predecessors, (39), 3 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 45 [2023-11-12 02:31:11,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:31:11,749 INFO L225 Difference]: With dead ends: 2946 [2023-11-12 02:31:11,750 INFO L226 Difference]: Without dead ends: 1350 [2023-11-12 02:31:11,754 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-12 02:31:11,755 INFO L413 NwaCegarLoop]: 928 mSDtfsCounter, 818 mSDsluCounter, 1683 mSDsCounter, 0 mSdLazyCounter, 567 mSolverCounterSat, 279 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 821 SdHoareTripleChecker+Valid, 2611 SdHoareTripleChecker+Invalid, 849 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 279 IncrementalHoareTripleChecker+Valid, 567 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.4s IncrementalHoareTripleChecker+Time [2023-11-12 02:31:11,755 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [821 Valid, 2611 Invalid, 849 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [279 Valid, 567 Invalid, 3 Unknown, 0 Unchecked, 15.4s Time] [2023-11-12 02:31:11,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1350 states. [2023-11-12 02:31:11,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1350 to 1186. [2023-11-12 02:31:11,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1186 states, 958 states have (on average 1.441544885177453) internal successors, (1381), 964 states have internal predecessors, (1381), 164 states have call successors, (164), 56 states have call predecessors, (164), 63 states have return successors, (209), 165 states have call predecessors, (209), 156 states have call successors, (209) [2023-11-12 02:31:11,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1186 states to 1186 states and 1754 transitions. [2023-11-12 02:31:11,901 INFO L78 Accepts]: Start accepts. Automaton has 1186 states and 1754 transitions. Word has length 45 [2023-11-12 02:31:11,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:31:11,901 INFO L495 AbstractCegarLoop]: Abstraction has 1186 states and 1754 transitions. [2023-11-12 02:31:11,902 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 4 states have internal predecessors, (39), 3 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-12 02:31:11,902 INFO L276 IsEmpty]: Start isEmpty. Operand 1186 states and 1754 transitions. [2023-11-12 02:31:11,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2023-11-12 02:31:11,905 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:31:11,905 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:31:11,905 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-11-12 02:31:11,906 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:31:11,907 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:31:11,907 INFO L85 PathProgramCache]: Analyzing trace with hash -1340371225, now seen corresponding path program 1 times [2023-11-12 02:31:11,907 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:31:11,907 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [192877875] [2023-11-12 02:31:11,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:31:11,908 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:31:11,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:31:12,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-11-12 02:31:12,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:31:12,140 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:31:12,141 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:31:12,141 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [192877875] [2023-11-12 02:31:12,141 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [192877875] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:31:12,142 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:31:12,142 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-12 02:31:12,142 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1019175123] [2023-11-12 02:31:12,142 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:31:12,143 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 02:31:12,143 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:31:12,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 02:31:12,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-12 02:31:12,144 INFO L87 Difference]: Start difference. First operand 1186 states and 1754 transitions. Second operand has 4 states, 4 states have (on average 10.25) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-12 02:31:16,325 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.94s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-12 02:31:20,300 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []