/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.use.bitabs.translation true -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/ntdrivers/cdaudio.i.cil-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-19 01:45:35,236 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-19 01:45:35,277 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-19 01:45:35,280 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-19 01:45:35,280 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-19 01:45:35,295 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-19 01:45:35,295 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-19 01:45:35,296 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-19 01:45:35,296 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-19 01:45:35,296 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-19 01:45:35,297 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-19 01:45:35,297 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-19 01:45:35,297 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-19 01:45:35,297 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-19 01:45:35,298 INFO L153 SettingsManager]: * Use SBE=true [2023-12-19 01:45:35,298 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-19 01:45:35,298 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-19 01:45:35,299 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-19 01:45:35,299 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-19 01:45:35,299 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-19 01:45:35,299 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-19 01:45:35,300 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-19 01:45:35,300 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-19 01:45:35,300 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-19 01:45:35,301 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-19 01:45:35,301 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-19 01:45:35,301 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-19 01:45:35,302 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-19 01:45:35,302 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-19 01:45:35,302 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-19 01:45:35,302 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-19 01:45:35,303 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-19 01:45:35,303 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-19 01:45:35,303 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-19 01:45:35,303 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-19 01:45:35,303 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-19 01:45:35,304 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-19 01:45:35,304 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-19 01:45:35,304 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-19 01:45:35,304 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-19 01:45:35,305 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-19 01:45:35,305 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-19 01:45:35,305 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-19 01:45:35,305 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> true [2023-12-19 01:45:35,441 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-19 01:45:35,466 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-19 01:45:35,474 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-19 01:45:35,475 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-19 01:45:35,476 INFO L274 PluginConnector]: CDTParser initialized [2023-12-19 01:45:35,477 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ntdrivers/cdaudio.i.cil-1.c [2023-12-19 01:45:36,817 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-19 01:45:37,320 INFO L384 CDTParser]: Found 1 translation units. [2023-12-19 01:45:37,321 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ntdrivers/cdaudio.i.cil-1.c [2023-12-19 01:45:37,362 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9dbf2f4ea/402fb2a1bc6847588c1bf1d3d42af28f/FLAGa0ef76144 [2023-12-19 01:45:37,379 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9dbf2f4ea/402fb2a1bc6847588c1bf1d3d42af28f [2023-12-19 01:45:37,383 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-19 01:45:37,384 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-19 01:45:37,385 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-19 01:45:37,385 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-19 01:45:37,389 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-19 01:45:37,389 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 01:45:37" (1/1) ... [2023-12-19 01:45:37,390 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4620ab86 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 01:45:37, skipping insertion in model container [2023-12-19 01:45:37,390 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 01:45:37" (1/1) ... [2023-12-19 01:45:37,549 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-19 01:45:38,038 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ntdrivers/cdaudio.i.cil-1.c[90162,90175] [2023-12-19 01:45:38,706 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-19 01:45:38,728 INFO L202 MainTranslator]: Completed pre-run [2023-12-19 01:45:38,735 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma pack(push,8) [13] [2023-12-19 01:45:38,736 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma pack(pop) [14] [2023-12-19 01:45:38,736 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma pack(push,4) [187] [2023-12-19 01:45:38,736 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma pack(pop) [193] [2023-12-19 01:45:38,736 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma pack(push,4) [399] [2023-12-19 01:45:38,737 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma pack(pop) [452] [2023-12-19 01:45:38,737 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma pack(push,1) [471] [2023-12-19 01:45:38,737 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma pack(pop) [472] [2023-12-19 01:45:38,737 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma pack(push,4) [1153] [2023-12-19 01:45:38,737 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma pack(pop) [1326] [2023-12-19 01:45:38,737 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma pack(push,8) [1446] [2023-12-19 01:45:38,737 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma pack(pop) [1447] [2023-12-19 01:45:38,737 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma pack(1) [2284] [2023-12-19 01:45:38,737 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma pack() [2285] [2023-12-19 01:45:38,738 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma pack(push,8) [2626] [2023-12-19 01:45:38,738 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma pack(pop) [2627] [2023-12-19 01:45:38,738 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma pack(push,4) [2630] [2023-12-19 01:45:38,738 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma pack(pop) [2631] [2023-12-19 01:45:38,738 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma pack(push,4) [2632] [2023-12-19 01:45:38,738 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma pack(pop) [2633] [2023-12-19 01:45:38,738 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma pack(push,1) [2634] [2023-12-19 01:45:38,738 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma pack(pop) [2635] [2023-12-19 01:45:38,739 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma pack(push,4) [2642] [2023-12-19 01:45:38,739 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma pack(pop) [2643] [2023-12-19 01:45:38,741 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma warning(push) [2644] [2023-12-19 01:45:38,742 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma warning(disable:4035) [2645] [2023-12-19 01:45:38,742 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma warning(pop) [2646] [2023-12-19 01:45:38,742 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma warning(disable:4103) [2651] [2023-12-19 01:45:38,742 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma warning(disable:4103) [2652] [2023-12-19 01:45:38,742 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma warning(push) [2681] [2023-12-19 01:45:38,742 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma warning(disable:4035) [2682] [2023-12-19 01:45:38,742 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma warning(pop) [2683] [2023-12-19 01:45:38,742 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma warning(disable:4035) [2690] [2023-12-19 01:45:38,743 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma warning(push) [2691] [2023-12-19 01:45:38,743 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma warning(disable:4164) [2692] [2023-12-19 01:45:38,743 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma function(_enable) [2693] [2023-12-19 01:45:38,743 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma function(_disable) [2694] [2023-12-19 01:45:38,743 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma warning(pop) [2695] [2023-12-19 01:45:38,743 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma warning(disable:4103) [2696] [2023-12-19 01:45:38,743 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma warning(disable:4103) [2697] [2023-12-19 01:45:38,743 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma warning(disable:4103) [2698] [2023-12-19 01:45:38,744 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma warning(disable:4103) [2699] [2023-12-19 01:45:38,744 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma warning(disable:4103) [2753] [2023-12-19 01:45:38,744 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma warning(disable:4103) [2754] [2023-12-19 01:45:38,744 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma warning(disable:4200) [2827] [2023-12-19 01:45:38,744 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma warning(default:4200) [2828] [2023-12-19 01:45:38,745 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma warning(disable:4200) [2840] [2023-12-19 01:45:38,745 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma warning(default:4200) [2841] [2023-12-19 01:45:38,745 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma alloc_text(INIT,DriverEntry) [2910] [2023-12-19 01:45:38,745 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma alloc_text(PAGECDNC,CdAudioNECDeviceControl) [2911] [2023-12-19 01:45:38,745 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma alloc_text(PAGECDOT,CdAudioHitachiSendPauseCommand) [2912] [2023-12-19 01:45:38,745 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma alloc_text(PAGECDOT,CdAudioHitachiDeviceControl) [2913] [2023-12-19 01:45:38,745 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma alloc_text(PAGECDOT,CdAudioDenonDeviceControl) [2914] [2023-12-19 01:45:38,745 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma alloc_text(PAGECDNC,CdAudio435DeviceControl) [2915] [2023-12-19 01:45:38,745 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma alloc_text(PAGECDNC,CdAudio535DeviceControl) [2916] [2023-12-19 01:45:38,745 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma alloc_text(PAGECDOT,CdAudioPioneerDeviceControl) [2917] [2023-12-19 01:45:38,746 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma alloc_text(PAGECDNC,CdAudioPan533DeviceControl) [2918] [2023-12-19 01:45:38,746 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma alloc_text(PAGECDOT,CdAudioAtapiDeviceControl) [2919] [2023-12-19 01:45:38,746 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma alloc_text(PAGECDOT,CdAudioLionOpticsDeviceControl) [2920] [2023-12-19 01:45:38,746 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma alloc_text(PAGECDOT,CdAudioHPCdrDeviceControl) [2921] [2023-12-19 01:45:38,746 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma alloc_text(PAGECDOT,HpCdrProcessLastSession) [2922] [2023-12-19 01:45:38,748 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma alloc_text(PAGECDOT,HPCdrCompletion) [2923] [2023-12-19 01:45:38,749 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma warning(push) [7517] [2023-12-19 01:45:38,749 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma warning(disable:4035) [7518] [2023-12-19 01:45:38,749 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma warning(pop) [7519] [2023-12-19 01:45:38,749 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma warning(disable:4103) [7520] [2023-12-19 01:45:38,749 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma warning(disable:4103) [7521] [2023-12-19 01:45:38,749 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma warning(push) [7522] [2023-12-19 01:45:38,749 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma warning(disable:4035) [7523] [2023-12-19 01:45:38,749 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma warning(pop) [7524] [2023-12-19 01:45:38,749 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma warning(disable:4035) [7525] [2023-12-19 01:45:38,750 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma warning(push) [7526] [2023-12-19 01:45:38,750 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma warning(disable:4164) [7527] [2023-12-19 01:45:38,750 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma function(_enable) [7528] [2023-12-19 01:45:38,750 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma function(_disable) [7529] [2023-12-19 01:45:38,750 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma warning(pop) [7530] [2023-12-19 01:45:38,750 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma warning(disable:4103) [7531] [2023-12-19 01:45:38,750 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma warning(disable:4103) [7532] [2023-12-19 01:45:38,750 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma warning(disable:4103) [7533] [2023-12-19 01:45:38,750 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma warning(disable:4103) [7534] [2023-12-19 01:45:38,750 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma warning(disable:4103) [7535] [2023-12-19 01:45:38,750 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma warning(disable:4103) [7536] [2023-12-19 01:45:38,751 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma warning(disable:4200) [7537] [2023-12-19 01:45:38,751 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma warning(default:4200) [7538] [2023-12-19 01:45:38,813 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ntdrivers/cdaudio.i.cil-1.c[90162,90175] [2023-12-19 01:45:39,178 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-19 01:45:39,204 INFO L206 MainTranslator]: Completed translation [2023-12-19 01:45:39,206 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 01:45:39 WrapperNode [2023-12-19 01:45:39,206 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-19 01:45:39,207 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-19 01:45:39,207 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-19 01:45:39,207 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-19 01:45:39,213 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 01:45:39" (1/1) ... [2023-12-19 01:45:39,312 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 01:45:39" (1/1) ... [2023-12-19 01:45:39,414 INFO L138 Inliner]: procedures = 120, calls = 2181, calls flagged for inlining = 23, calls inlined = 19, statements flattened = 2466 [2023-12-19 01:45:39,414 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-19 01:45:39,415 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-19 01:45:39,415 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-19 01:45:39,415 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-19 01:45:39,423 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 01:45:39" (1/1) ... [2023-12-19 01:45:39,423 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 01:45:39" (1/1) ... [2023-12-19 01:45:39,448 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 01:45:39" (1/1) ... [2023-12-19 01:45:39,528 INFO L175 MemorySlicer]: Split 698 memory accesses to 14 slices as follows [2, 1, 20, 7, 2, 115, 4, 1, 13, 113, 1, 111, 224, 84]. 32 percent of accesses are in the largest equivalence class. The 13 initializations are split as follows [2, 0, 0, 7, 0, 0, 4, 0, 0, 0, 0, 0, 0, 0]. The 397 writes are split as follows [0, 1, 4, 0, 0, 11, 0, 0, 12, 112, 0, 86, 118, 53]. [2023-12-19 01:45:39,528 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 01:45:39" (1/1) ... [2023-12-19 01:45:39,528 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 01:45:39" (1/1) ... [2023-12-19 01:45:39,594 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 01:45:39" (1/1) ... [2023-12-19 01:45:39,605 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 01:45:39" (1/1) ... [2023-12-19 01:45:39,618 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 01:45:39" (1/1) ... [2023-12-19 01:45:39,630 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 01:45:39" (1/1) ... [2023-12-19 01:45:39,655 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-19 01:45:39,656 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-19 01:45:39,656 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-19 01:45:39,656 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-19 01:45:39,657 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 01:45:39" (1/1) ... [2023-12-19 01:45:39,740 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-19 01:45:39,748 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 01:45:39,995 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-19 01:45:40,016 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-19 01:45:40,022 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2023-12-19 01:45:40,022 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2023-12-19 01:45:40,023 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2023-12-19 01:45:40,023 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2023-12-19 01:45:40,023 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2023-12-19 01:45:40,023 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2023-12-19 01:45:40,023 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2023-12-19 01:45:40,023 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#7 [2023-12-19 01:45:40,023 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#8 [2023-12-19 01:45:40,023 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#9 [2023-12-19 01:45:40,023 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#10 [2023-12-19 01:45:40,023 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#11 [2023-12-19 01:45:40,023 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#12 [2023-12-19 01:45:40,024 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#13 [2023-12-19 01:45:40,024 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#0 [2023-12-19 01:45:40,024 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#1 [2023-12-19 01:45:40,024 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#2 [2023-12-19 01:45:40,024 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#3 [2023-12-19 01:45:40,024 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#4 [2023-12-19 01:45:40,024 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#5 [2023-12-19 01:45:40,024 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#6 [2023-12-19 01:45:40,024 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#7 [2023-12-19 01:45:40,024 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#8 [2023-12-19 01:45:40,024 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#9 [2023-12-19 01:45:40,024 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#10 [2023-12-19 01:45:40,024 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#11 [2023-12-19 01:45:40,024 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#12 [2023-12-19 01:45:40,025 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#13 [2023-12-19 01:45:40,025 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2023-12-19 01:45:40,025 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2023-12-19 01:45:40,025 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2023-12-19 01:45:40,025 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2023-12-19 01:45:40,025 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2023-12-19 01:45:40,025 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2023-12-19 01:45:40,025 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2023-12-19 01:45:40,026 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#7 [2023-12-19 01:45:40,026 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#8 [2023-12-19 01:45:40,026 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#9 [2023-12-19 01:45:40,026 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#10 [2023-12-19 01:45:40,026 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#11 [2023-12-19 01:45:40,026 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#12 [2023-12-19 01:45:40,026 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#13 [2023-12-19 01:45:40,026 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-12-19 01:45:40,026 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-12-19 01:45:40,026 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2023-12-19 01:45:40,026 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2023-12-19 01:45:40,026 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2023-12-19 01:45:40,026 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2023-12-19 01:45:40,027 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2023-12-19 01:45:40,027 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2023-12-19 01:45:40,027 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2023-12-19 01:45:40,027 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2023-12-19 01:45:40,027 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2023-12-19 01:45:40,027 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#11 [2023-12-19 01:45:40,027 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#12 [2023-12-19 01:45:40,027 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#13 [2023-12-19 01:45:40,027 INFO L130 BoogieDeclarations]: Found specification of procedure errorFn [2023-12-19 01:45:40,027 INFO L138 BoogieDeclarations]: Found implementation of procedure errorFn [2023-12-19 01:45:40,027 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#0 [2023-12-19 01:45:40,027 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#1 [2023-12-19 01:45:40,028 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#2 [2023-12-19 01:45:40,028 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#3 [2023-12-19 01:45:40,028 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#4 [2023-12-19 01:45:40,028 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#5 [2023-12-19 01:45:40,028 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#6 [2023-12-19 01:45:40,029 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#7 [2023-12-19 01:45:40,029 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#8 [2023-12-19 01:45:40,029 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#9 [2023-12-19 01:45:40,029 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#10 [2023-12-19 01:45:40,030 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#11 [2023-12-19 01:45:40,032 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#12 [2023-12-19 01:45:40,032 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#13 [2023-12-19 01:45:40,036 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#0 [2023-12-19 01:45:40,036 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#1 [2023-12-19 01:45:40,036 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#2 [2023-12-19 01:45:40,036 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#3 [2023-12-19 01:45:40,036 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#4 [2023-12-19 01:45:40,036 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#5 [2023-12-19 01:45:40,036 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#6 [2023-12-19 01:45:40,036 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#7 [2023-12-19 01:45:40,036 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#8 [2023-12-19 01:45:40,036 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#9 [2023-12-19 01:45:40,036 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#10 [2023-12-19 01:45:40,037 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#11 [2023-12-19 01:45:40,037 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#12 [2023-12-19 01:45:40,037 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#13 [2023-12-19 01:45:40,037 INFO L130 BoogieDeclarations]: Found specification of procedure MmLockPagableDataSection [2023-12-19 01:45:40,037 INFO L138 BoogieDeclarations]: Found implementation of procedure MmLockPagableDataSection [2023-12-19 01:45:40,037 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-12-19 01:45:40,037 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-12-19 01:45:40,037 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2023-12-19 01:45:40,037 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2023-12-19 01:45:40,037 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2023-12-19 01:45:40,037 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2023-12-19 01:45:40,037 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2023-12-19 01:45:40,037 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2023-12-19 01:45:40,038 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2023-12-19 01:45:40,038 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2023-12-19 01:45:40,038 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2023-12-19 01:45:40,038 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#11 [2023-12-19 01:45:40,038 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#12 [2023-12-19 01:45:40,038 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#13 [2023-12-19 01:45:40,038 INFO L130 BoogieDeclarations]: Found specification of procedure CdAudioIsPlayActive [2023-12-19 01:45:40,038 INFO L138 BoogieDeclarations]: Found implementation of procedure CdAudioIsPlayActive [2023-12-19 01:45:40,038 INFO L130 BoogieDeclarations]: Found specification of procedure IoOpenDeviceRegistryKey [2023-12-19 01:45:40,038 INFO L138 BoogieDeclarations]: Found implementation of procedure IoOpenDeviceRegistryKey [2023-12-19 01:45:40,038 INFO L130 BoogieDeclarations]: Found specification of procedure IofCompleteRequest [2023-12-19 01:45:40,038 INFO L138 BoogieDeclarations]: Found implementation of procedure IofCompleteRequest [2023-12-19 01:45:40,038 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2023-12-19 01:45:40,038 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2023-12-19 01:45:40,038 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2023-12-19 01:45:40,038 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#3 [2023-12-19 01:45:40,038 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#4 [2023-12-19 01:45:40,039 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#5 [2023-12-19 01:45:40,039 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#6 [2023-12-19 01:45:40,039 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#7 [2023-12-19 01:45:40,039 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#8 [2023-12-19 01:45:40,039 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#9 [2023-12-19 01:45:40,039 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#10 [2023-12-19 01:45:40,039 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#11 [2023-12-19 01:45:40,039 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#12 [2023-12-19 01:45:40,039 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#13 [2023-12-19 01:45:40,039 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2023-12-19 01:45:40,039 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2023-12-19 01:45:40,039 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2023-12-19 01:45:40,039 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#3 [2023-12-19 01:45:40,039 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#4 [2023-12-19 01:45:40,039 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#5 [2023-12-19 01:45:40,039 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#6 [2023-12-19 01:45:40,039 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#7 [2023-12-19 01:45:40,039 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#8 [2023-12-19 01:45:40,039 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#9 [2023-12-19 01:45:40,039 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#10 [2023-12-19 01:45:40,039 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#11 [2023-12-19 01:45:40,039 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#12 [2023-12-19 01:45:40,040 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#13 [2023-12-19 01:45:40,040 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_malloc [2023-12-19 01:45:40,040 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_malloc [2023-12-19 01:45:40,040 INFO L130 BoogieDeclarations]: Found specification of procedure IofCallDriver [2023-12-19 01:45:40,040 INFO L138 BoogieDeclarations]: Found implementation of procedure IofCallDriver [2023-12-19 01:45:40,040 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-12-19 01:45:40,040 INFO L130 BoogieDeclarations]: Found specification of procedure ZwClose [2023-12-19 01:45:40,040 INFO L138 BoogieDeclarations]: Found implementation of procedure ZwClose [2023-12-19 01:45:40,040 INFO L130 BoogieDeclarations]: Found specification of procedure SendSrbSynchronous [2023-12-19 01:45:40,040 INFO L138 BoogieDeclarations]: Found implementation of procedure SendSrbSynchronous [2023-12-19 01:45:40,040 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-19 01:45:40,040 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2023-12-19 01:45:40,040 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2023-12-19 01:45:40,040 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2023-12-19 01:45:40,040 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2023-12-19 01:45:40,040 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2023-12-19 01:45:40,040 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2023-12-19 01:45:40,040 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2023-12-19 01:45:40,040 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2023-12-19 01:45:40,040 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#8 [2023-12-19 01:45:40,040 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#9 [2023-12-19 01:45:40,041 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#10 [2023-12-19 01:45:40,041 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#11 [2023-12-19 01:45:40,041 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#12 [2023-12-19 01:45:40,041 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#13 [2023-12-19 01:45:40,041 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-19 01:45:40,041 INFO L130 BoogieDeclarations]: Found specification of procedure stubMoreProcessingRequired [2023-12-19 01:45:40,041 INFO L138 BoogieDeclarations]: Found implementation of procedure stubMoreProcessingRequired [2023-12-19 01:45:40,041 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2023-12-19 01:45:40,041 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2023-12-19 01:45:40,041 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2023-12-19 01:45:40,041 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2023-12-19 01:45:40,041 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2023-12-19 01:45:40,041 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2023-12-19 01:45:40,041 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2023-12-19 01:45:40,041 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2023-12-19 01:45:40,041 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2023-12-19 01:45:40,041 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#9 [2023-12-19 01:45:40,041 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#10 [2023-12-19 01:45:40,041 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#11 [2023-12-19 01:45:40,042 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#12 [2023-12-19 01:45:40,042 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#13 [2023-12-19 01:45:40,042 INFO L130 BoogieDeclarations]: Found specification of procedure KeSetEvent [2023-12-19 01:45:40,042 INFO L138 BoogieDeclarations]: Found implementation of procedure KeSetEvent [2023-12-19 01:45:40,042 INFO L130 BoogieDeclarations]: Found specification of procedure CdAudioSignalCompletion [2023-12-19 01:45:40,042 INFO L138 BoogieDeclarations]: Found implementation of procedure CdAudioSignalCompletion [2023-12-19 01:45:40,042 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-19 01:45:40,042 INFO L130 BoogieDeclarations]: Found specification of procedure KeWaitForSingleObject [2023-12-19 01:45:40,042 INFO L138 BoogieDeclarations]: Found implementation of procedure KeWaitForSingleObject [2023-12-19 01:45:40,042 INFO L130 BoogieDeclarations]: Found specification of procedure HPCdrCompletion [2023-12-19 01:45:40,042 INFO L138 BoogieDeclarations]: Found implementation of procedure HPCdrCompletion [2023-12-19 01:45:40,042 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-19 01:45:40,042 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-12-19 01:45:40,042 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-12-19 01:45:40,042 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-12-19 01:45:40,042 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2023-12-19 01:45:40,042 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2023-12-19 01:45:40,042 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2023-12-19 01:45:40,042 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2023-12-19 01:45:40,042 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2023-12-19 01:45:40,042 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2023-12-19 01:45:40,043 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2023-12-19 01:45:40,045 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2023-12-19 01:45:40,045 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2023-12-19 01:45:40,046 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2023-12-19 01:45:40,046 INFO L130 BoogieDeclarations]: Found specification of procedure CdAudioSendToNextDriver [2023-12-19 01:45:40,046 INFO L138 BoogieDeclarations]: Found implementation of procedure CdAudioSendToNextDriver [2023-12-19 01:45:40,047 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#0 [2023-12-19 01:45:40,047 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#1 [2023-12-19 01:45:40,047 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#2 [2023-12-19 01:45:40,047 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#3 [2023-12-19 01:45:40,047 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#4 [2023-12-19 01:45:40,047 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#5 [2023-12-19 01:45:40,047 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#6 [2023-12-19 01:45:40,047 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#7 [2023-12-19 01:45:40,047 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#8 [2023-12-19 01:45:40,047 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#9 [2023-12-19 01:45:40,047 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#10 [2023-12-19 01:45:40,047 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#11 [2023-12-19 01:45:40,047 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#12 [2023-12-19 01:45:40,047 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#13 [2023-12-19 01:45:40,047 INFO L130 BoogieDeclarations]: Found specification of procedure ExAllocatePoolWithTag [2023-12-19 01:45:40,047 INFO L138 BoogieDeclarations]: Found implementation of procedure ExAllocatePoolWithTag [2023-12-19 01:45:40,047 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-19 01:45:40,047 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-19 01:45:40,047 INFO L130 BoogieDeclarations]: Found specification of procedure CdAudioForwardIrpSynchronous [2023-12-19 01:45:40,047 INFO L138 BoogieDeclarations]: Found implementation of procedure CdAudioForwardIrpSynchronous [2023-12-19 01:45:40,448 INFO L241 CfgBuilder]: Building ICFG [2023-12-19 01:45:40,450 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-19 01:45:40,731 WARN L821 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-12-19 01:45:40,753 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##21: assume !false; [2023-12-19 01:45:40,753 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##20: assume false; [2023-12-19 01:45:40,928 WARN L821 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-12-19 01:45:40,932 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2023-12-19 01:45:40,932 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2023-12-19 01:45:41,069 WARN L821 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-12-19 01:45:41,079 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##16: assume !false; [2023-12-19 01:45:41,079 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##15: assume false; [2023-12-19 01:45:41,618 WARN L821 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-12-19 01:45:41,619 WARN L821 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-12-19 01:45:41,619 WARN L821 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-12-19 01:45:41,624 WARN L821 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-12-19 01:45:41,630 WARN L821 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-12-19 01:45:41,634 WARN L821 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-12-19 01:45:44,427 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##202: assume !false; [2023-12-19 01:45:44,427 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##201: assume false; [2023-12-19 01:45:44,427 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##600: assume !false; [2023-12-19 01:45:44,428 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint L3709: CdAudioPnp_#res#1 := 0; [2023-12-19 01:45:44,428 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##65: assume !false; [2023-12-19 01:45:44,428 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##64: assume false; [2023-12-19 01:45:44,428 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##43: assume !false; [2023-12-19 01:45:44,428 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##42: assume false; [2023-12-19 01:45:44,428 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##32: assume false; [2023-12-19 01:45:44,428 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##33: assume !false; [2023-12-19 01:45:44,428 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##349: assume !false; [2023-12-19 01:45:44,428 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##348: assume false; [2023-12-19 01:45:44,428 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##599: assume false; [2023-12-19 01:45:44,485 INFO L282 CfgBuilder]: Performing block encoding [2023-12-19 01:45:44,589 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-19 01:45:44,589 INFO L309 CfgBuilder]: Removed 6 assume(true) statements. [2023-12-19 01:45:44,590 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 01:45:44 BoogieIcfgContainer [2023-12-19 01:45:44,590 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-19 01:45:44,593 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-19 01:45:44,593 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-19 01:45:44,596 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-19 01:45:44,596 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.12 01:45:37" (1/3) ... [2023-12-19 01:45:44,597 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7adf6a16 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 01:45:44, skipping insertion in model container [2023-12-19 01:45:44,597 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 01:45:39" (2/3) ... [2023-12-19 01:45:44,597 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7adf6a16 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 01:45:44, skipping insertion in model container [2023-12-19 01:45:44,597 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 01:45:44" (3/3) ... [2023-12-19 01:45:44,598 INFO L112 eAbstractionObserver]: Analyzing ICFG cdaudio.i.cil-1.c [2023-12-19 01:45:44,612 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-19 01:45:44,612 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-19 01:45:44,678 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-19 01:45:44,682 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;@67f0810d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-19 01:45:44,682 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-19 01:45:44,714 INFO L276 IsEmpty]: Start isEmpty. Operand has 618 states, 482 states have (on average 1.599585062240664) internal successors, (771), 501 states have internal predecessors, (771), 113 states have call successors, (113), 21 states have call predecessors, (113), 21 states have return successors, (113), 108 states have call predecessors, (113), 113 states have call successors, (113) [2023-12-19 01:45:44,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-12-19 01:45:44,720 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 01:45:44,721 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 01:45:44,721 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 01:45:44,725 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 01:45:44,725 INFO L85 PathProgramCache]: Analyzing trace with hash -1896529435, now seen corresponding path program 1 times [2023-12-19 01:45:44,731 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 01:45:44,731 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1578322862] [2023-12-19 01:45:44,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 01:45:44,731 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 01:45:44,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:45:45,144 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-19 01:45:45,145 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 01:45:45,145 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1578322862] [2023-12-19 01:45:45,146 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1578322862] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 01:45:45,146 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 01:45:45,146 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-19 01:45:45,148 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [340660613] [2023-12-19 01:45:45,148 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 01:45:45,152 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-19 01:45:45,152 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 01:45:45,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-19 01:45:45,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-19 01:45:45,189 INFO L87 Difference]: Start difference. First operand has 618 states, 482 states have (on average 1.599585062240664) internal successors, (771), 501 states have internal predecessors, (771), 113 states have call successors, (113), 21 states have call predecessors, (113), 21 states have return successors, (113), 108 states have call predecessors, (113), 113 states have call successors, (113) Second operand has 2 states, 2 states have (on average 8.0) internal successors, (16), 2 states have internal predecessors, (16), 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) [2023-12-19 01:45:45,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 01:45:45,527 INFO L93 Difference]: Finished difference Result 1233 states and 2039 transitions. [2023-12-19 01:45:45,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-19 01:45:45,530 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 8.0) internal successors, (16), 2 states have internal predecessors, (16), 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 17 [2023-12-19 01:45:45,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 01:45:45,557 INFO L225 Difference]: With dead ends: 1233 [2023-12-19 01:45:45,557 INFO L226 Difference]: Without dead ends: 614 [2023-12-19 01:45:45,569 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-19 01:45:45,578 INFO L413 NwaCegarLoop]: 908 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 908 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-19 01:45:45,580 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 908 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-19 01:45:45,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 614 states. [2023-12-19 01:45:45,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 614 to 614. [2023-12-19 01:45:45,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 614 states, 480 states have (on average 1.5541666666666667) internal successors, (746), 497 states have internal predecessors, (746), 113 states have call successors, (113), 21 states have call predecessors, (113), 20 states have return successors, (97), 97 states have call predecessors, (97), 97 states have call successors, (97) [2023-12-19 01:45:45,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 614 states to 614 states and 956 transitions. [2023-12-19 01:45:45,738 INFO L78 Accepts]: Start accepts. Automaton has 614 states and 956 transitions. Word has length 17 [2023-12-19 01:45:45,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 01:45:45,738 INFO L495 AbstractCegarLoop]: Abstraction has 614 states and 956 transitions. [2023-12-19 01:45:45,738 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 8.0) internal successors, (16), 2 states have internal predecessors, (16), 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) [2023-12-19 01:45:45,739 INFO L276 IsEmpty]: Start isEmpty. Operand 614 states and 956 transitions. [2023-12-19 01:45:45,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-12-19 01:45:45,740 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 01:45:45,740 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 01:45:45,740 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-19 01:45:45,740 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 01:45:45,741 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 01:45:45,741 INFO L85 PathProgramCache]: Analyzing trace with hash 362326001, now seen corresponding path program 1 times [2023-12-19 01:45:45,741 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 01:45:45,741 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2077116419] [2023-12-19 01:45:45,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 01:45:45,741 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 01:45:45,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:45:45,912 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-19 01:45:45,912 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 01:45:45,912 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2077116419] [2023-12-19 01:45:45,912 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2077116419] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 01:45:45,912 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 01:45:45,913 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-19 01:45:45,913 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1072567453] [2023-12-19 01:45:45,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 01:45:45,914 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-19 01:45:45,914 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 01:45:45,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-19 01:45:45,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-19 01:45:45,915 INFO L87 Difference]: Start difference. First operand 614 states and 956 transitions. Second operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 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) [2023-12-19 01:45:46,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 01:45:46,326 INFO L93 Difference]: Finished difference Result 633 states and 981 transitions. [2023-12-19 01:45:46,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-19 01:45:46,327 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 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 17 [2023-12-19 01:45:46,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 01:45:46,331 INFO L225 Difference]: With dead ends: 633 [2023-12-19 01:45:46,331 INFO L226 Difference]: Without dead ends: 614 [2023-12-19 01:45:46,331 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 [2023-12-19 01:45:46,332 INFO L413 NwaCegarLoop]: 898 mSDtfsCounter, 12 mSDsluCounter, 848 mSDsCounter, 0 mSdLazyCounter, 155 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 1746 SdHoareTripleChecker+Invalid, 156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 155 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-19 01:45:46,333 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 1746 Invalid, 156 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 155 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-19 01:45:46,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 614 states. [2023-12-19 01:45:46,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 614 to 614. [2023-12-19 01:45:46,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 614 states, 480 states have (on average 1.5520833333333333) internal successors, (745), 497 states have internal predecessors, (745), 113 states have call successors, (113), 21 states have call predecessors, (113), 20 states have return successors, (97), 97 states have call predecessors, (97), 97 states have call successors, (97) [2023-12-19 01:45:46,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 614 states to 614 states and 955 transitions. [2023-12-19 01:45:46,414 INFO L78 Accepts]: Start accepts. Automaton has 614 states and 955 transitions. Word has length 17 [2023-12-19 01:45:46,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 01:45:46,414 INFO L495 AbstractCegarLoop]: Abstraction has 614 states and 955 transitions. [2023-12-19 01:45:46,415 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 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) [2023-12-19 01:45:46,415 INFO L276 IsEmpty]: Start isEmpty. Operand 614 states and 955 transitions. [2023-12-19 01:45:46,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-12-19 01:45:46,415 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 01:45:46,415 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 01:45:46,415 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-19 01:45:46,416 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 01:45:46,421 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 01:45:46,421 INFO L85 PathProgramCache]: Analyzing trace with hash 1962776435, now seen corresponding path program 1 times [2023-12-19 01:45:46,421 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 01:45:46,422 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [719981354] [2023-12-19 01:45:46,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 01:45:46,422 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 01:45:46,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:45:46,515 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-19 01:45:46,515 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 01:45:46,515 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [719981354] [2023-12-19 01:45:46,515 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [719981354] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 01:45:46,515 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 01:45:46,515 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-19 01:45:46,516 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1853417887] [2023-12-19 01:45:46,516 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 01:45:46,516 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-19 01:45:46,516 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 01:45:46,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-19 01:45:46,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-19 01:45:46,517 INFO L87 Difference]: Start difference. First operand 614 states and 955 transitions. Second operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 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) [2023-12-19 01:45:46,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 01:45:46,929 INFO L93 Difference]: Finished difference Result 1109 states and 1706 transitions. [2023-12-19 01:45:46,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-19 01:45:46,930 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 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 17 [2023-12-19 01:45:46,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 01:45:46,940 INFO L225 Difference]: With dead ends: 1109 [2023-12-19 01:45:46,940 INFO L226 Difference]: Without dead ends: 873 [2023-12-19 01:45:46,941 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 [2023-12-19 01:45:46,958 INFO L413 NwaCegarLoop]: 1166 mSDtfsCounter, 873 mSDsluCounter, 374 mSDsCounter, 0 mSdLazyCounter, 177 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 873 SdHoareTripleChecker+Valid, 1540 SdHoareTripleChecker+Invalid, 192 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 177 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-19 01:45:46,960 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [873 Valid, 1540 Invalid, 192 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 177 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-19 01:45:46,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 873 states. [2023-12-19 01:45:47,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 873 to 854. [2023-12-19 01:45:47,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 854 states, 676 states have (on average 1.529585798816568) internal successors, (1034), 679 states have internal predecessors, (1034), 142 states have call successors, (142), 36 states have call predecessors, (142), 35 states have return successors, (146), 140 states have call predecessors, (146), 130 states have call successors, (146) [2023-12-19 01:45:47,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 854 states to 854 states and 1322 transitions. [2023-12-19 01:45:47,043 INFO L78 Accepts]: Start accepts. Automaton has 854 states and 1322 transitions. Word has length 17 [2023-12-19 01:45:47,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 01:45:47,044 INFO L495 AbstractCegarLoop]: Abstraction has 854 states and 1322 transitions. [2023-12-19 01:45:47,044 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 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) [2023-12-19 01:45:47,044 INFO L276 IsEmpty]: Start isEmpty. Operand 854 states and 1322 transitions. [2023-12-19 01:45:47,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-12-19 01:45:47,048 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 01:45:47,049 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] [2023-12-19 01:45:47,049 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-19 01:45:47,049 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 01:45:47,049 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 01:45:47,049 INFO L85 PathProgramCache]: Analyzing trace with hash 210475337, now seen corresponding path program 1 times [2023-12-19 01:45:47,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 01:45:47,049 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [303218341] [2023-12-19 01:45:47,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 01:45:47,050 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 01:45:47,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:45:47,195 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-19 01:45:47,195 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 01:45:47,195 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [303218341] [2023-12-19 01:45:47,195 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [303218341] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 01:45:47,196 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 01:45:47,196 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-19 01:45:47,196 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1119590497] [2023-12-19 01:45:47,196 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 01:45:47,196 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-19 01:45:47,196 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 01:45:47,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-19 01:45:47,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-19 01:45:47,197 INFO L87 Difference]: Start difference. First operand 854 states and 1322 transitions. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 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) [2023-12-19 01:45:47,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 01:45:47,759 INFO L93 Difference]: Finished difference Result 1855 states and 2915 transitions. [2023-12-19 01:45:47,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-19 01:45:47,760 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 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 23 [2023-12-19 01:45:47,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 01:45:47,771 INFO L225 Difference]: With dead ends: 1855 [2023-12-19 01:45:47,771 INFO L226 Difference]: Without dead ends: 1450 [2023-12-19 01:45:47,775 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 [2023-12-19 01:45:47,780 INFO L413 NwaCegarLoop]: 1411 mSDtfsCounter, 633 mSDsluCounter, 843 mSDsCounter, 0 mSdLazyCounter, 210 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 633 SdHoareTripleChecker+Valid, 2254 SdHoareTripleChecker+Invalid, 214 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 210 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-19 01:45:47,782 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [633 Valid, 2254 Invalid, 214 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 210 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-19 01:45:47,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1450 states. [2023-12-19 01:45:47,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1450 to 1025. [2023-12-19 01:45:47,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1025 states, 802 states have (on average 1.5174563591022443) internal successors, (1217), 804 states have internal predecessors, (1217), 170 states have call successors, (170), 52 states have call predecessors, (170), 52 states have return successors, (217), 170 states have call predecessors, (217), 158 states have call successors, (217) [2023-12-19 01:45:47,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1025 states to 1025 states and 1604 transitions. [2023-12-19 01:45:47,842 INFO L78 Accepts]: Start accepts. Automaton has 1025 states and 1604 transitions. Word has length 23 [2023-12-19 01:45:47,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 01:45:47,842 INFO L495 AbstractCegarLoop]: Abstraction has 1025 states and 1604 transitions. [2023-12-19 01:45:47,842 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 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) [2023-12-19 01:45:47,842 INFO L276 IsEmpty]: Start isEmpty. Operand 1025 states and 1604 transitions. [2023-12-19 01:45:47,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-12-19 01:45:47,843 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 01:45:47,843 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] [2023-12-19 01:45:47,844 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-19 01:45:47,844 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 01:45:47,844 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 01:45:47,844 INFO L85 PathProgramCache]: Analyzing trace with hash -235973841, now seen corresponding path program 1 times [2023-12-19 01:45:47,844 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 01:45:47,844 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1319797604] [2023-12-19 01:45:47,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 01:45:47,845 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 01:45:47,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:45:47,940 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-19 01:45:47,941 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 01:45:47,941 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1319797604] [2023-12-19 01:45:47,941 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1319797604] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 01:45:47,941 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 01:45:47,941 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-19 01:45:47,941 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1383104988] [2023-12-19 01:45:47,941 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 01:45:47,942 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-19 01:45:47,942 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 01:45:47,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-19 01:45:47,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-19 01:45:47,943 INFO L87 Difference]: Start difference. First operand 1025 states and 1604 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 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) [2023-12-19 01:45:48,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 01:45:48,284 INFO L93 Difference]: Finished difference Result 1047 states and 1636 transitions. [2023-12-19 01:45:48,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-19 01:45:48,285 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 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 23 [2023-12-19 01:45:48,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 01:45:48,289 INFO L225 Difference]: With dead ends: 1047 [2023-12-19 01:45:48,289 INFO L226 Difference]: Without dead ends: 1043 [2023-12-19 01:45:48,290 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 [2023-12-19 01:45:48,293 INFO L413 NwaCegarLoop]: 884 mSDtfsCounter, 74 mSDsluCounter, 823 mSDsCounter, 0 mSdLazyCounter, 162 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 1707 SdHoareTripleChecker+Invalid, 165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-19 01:45:48,293 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 1707 Invalid, 165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 162 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-19 01:45:48,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1043 states. [2023-12-19 01:45:48,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1043 to 1022. [2023-12-19 01:45:48,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1022 states, 800 states have (on average 1.51875) internal successors, (1215), 800 states have internal predecessors, (1215), 169 states have call successors, (169), 52 states have call predecessors, (169), 52 states have return successors, (216), 169 states have call predecessors, (216), 157 states have call successors, (216) [2023-12-19 01:45:48,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1022 states to 1022 states and 1600 transitions. [2023-12-19 01:45:48,357 INFO L78 Accepts]: Start accepts. Automaton has 1022 states and 1600 transitions. Word has length 23 [2023-12-19 01:45:48,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 01:45:48,358 INFO L495 AbstractCegarLoop]: Abstraction has 1022 states and 1600 transitions. [2023-12-19 01:45:48,358 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 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) [2023-12-19 01:45:48,359 INFO L276 IsEmpty]: Start isEmpty. Operand 1022 states and 1600 transitions. [2023-12-19 01:45:48,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-12-19 01:45:48,360 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 01:45:48,360 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] [2023-12-19 01:45:48,360 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-19 01:45:48,361 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 01:45:48,361 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 01:45:48,361 INFO L85 PathProgramCache]: Analyzing trace with hash 2057567518, now seen corresponding path program 1 times [2023-12-19 01:45:48,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 01:45:48,361 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1337009987] [2023-12-19 01:45:48,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 01:45:48,362 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 01:45:48,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:45:48,514 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-19 01:45:48,515 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 01:45:48,515 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1337009987] [2023-12-19 01:45:48,515 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1337009987] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 01:45:48,515 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 01:45:48,515 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-19 01:45:48,515 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2127188967] [2023-12-19 01:45:48,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 01:45:48,515 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-19 01:45:48,515 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 01:45:48,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-19 01:45:48,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-19 01:45:48,516 INFO L87 Difference]: Start difference. First operand 1022 states and 1600 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 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) [2023-12-19 01:45:48,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 01:45:48,885 INFO L93 Difference]: Finished difference Result 1615 states and 2487 transitions. [2023-12-19 01:45:48,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-19 01:45:48,886 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 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 24 [2023-12-19 01:45:48,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 01:45:48,891 INFO L225 Difference]: With dead ends: 1615 [2023-12-19 01:45:48,892 INFO L226 Difference]: Without dead ends: 1491 [2023-12-19 01:45:48,893 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 [2023-12-19 01:45:48,893 INFO L413 NwaCegarLoop]: 1097 mSDtfsCounter, 856 mSDsluCounter, 388 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 856 SdHoareTripleChecker+Valid, 1485 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-19 01:45:48,894 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [856 Valid, 1485 Invalid, 97 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-19 01:45:48,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1491 states. [2023-12-19 01:45:48,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1491 to 1459. [2023-12-19 01:45:48,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1459 states, 1146 states have (on average 1.5157068062827226) internal successors, (1737), 1143 states have internal predecessors, (1737), 226 states have call successors, (226), 82 states have call predecessors, (226), 86 states have return successors, (298), 233 states have call predecessors, (298), 218 states have call successors, (298) [2023-12-19 01:45:48,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1459 states to 1459 states and 2261 transitions. [2023-12-19 01:45:48,955 INFO L78 Accepts]: Start accepts. Automaton has 1459 states and 2261 transitions. Word has length 24 [2023-12-19 01:45:48,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 01:45:48,956 INFO L495 AbstractCegarLoop]: Abstraction has 1459 states and 2261 transitions. [2023-12-19 01:45:48,956 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 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) [2023-12-19 01:45:48,956 INFO L276 IsEmpty]: Start isEmpty. Operand 1459 states and 2261 transitions. [2023-12-19 01:45:48,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-12-19 01:45:48,957 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 01:45:48,957 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] [2023-12-19 01:45:48,957 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-19 01:45:48,957 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 01:45:48,958 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 01:45:48,958 INFO L85 PathProgramCache]: Analyzing trace with hash 1990647351, now seen corresponding path program 1 times [2023-12-19 01:45:48,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 01:45:48,958 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [707051617] [2023-12-19 01:45:48,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 01:45:48,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 01:45:48,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:45:49,102 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-19 01:45:49,103 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 01:45:49,103 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [707051617] [2023-12-19 01:45:49,103 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [707051617] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 01:45:49,103 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 01:45:49,103 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-19 01:45:49,103 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [306903171] [2023-12-19 01:45:49,103 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 01:45:49,104 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-19 01:45:49,104 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 01:45:49,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-19 01:45:49,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-19 01:45:49,104 INFO L87 Difference]: Start difference. First operand 1459 states and 2261 transitions. Second operand has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 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) [2023-12-19 01:45:49,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 01:45:49,993 INFO L93 Difference]: Finished difference Result 2648 states and 4136 transitions. [2023-12-19 01:45:49,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-19 01:45:49,994 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 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 24 [2023-12-19 01:45:49,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 01:45:50,001 INFO L225 Difference]: With dead ends: 2648 [2023-12-19 01:45:50,001 INFO L226 Difference]: Without dead ends: 1755 [2023-12-19 01:45:50,004 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 [2023-12-19 01:45:50,005 INFO L413 NwaCegarLoop]: 1101 mSDtfsCounter, 1514 mSDsluCounter, 269 mSDsCounter, 0 mSdLazyCounter, 266 mSolverCounterSat, 316 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1516 SdHoareTripleChecker+Valid, 1370 SdHoareTripleChecker+Invalid, 582 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 316 IncrementalHoareTripleChecker+Valid, 266 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-19 01:45:50,006 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1516 Valid, 1370 Invalid, 582 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [316 Valid, 266 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-19 01:45:50,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1755 states. [2023-12-19 01:45:50,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1755 to 1447. [2023-12-19 01:45:50,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1447 states, 1136 states have (on average 1.5132042253521127) internal successors, (1719), 1133 states have internal predecessors, (1719), 224 states have call successors, (224), 80 states have call predecessors, (224), 86 states have return successors, (294), 233 states have call predecessors, (294), 216 states have call successors, (294) [2023-12-19 01:45:50,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1447 states to 1447 states and 2237 transitions. [2023-12-19 01:45:50,064 INFO L78 Accepts]: Start accepts. Automaton has 1447 states and 2237 transitions. Word has length 24 [2023-12-19 01:45:50,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 01:45:50,064 INFO L495 AbstractCegarLoop]: Abstraction has 1447 states and 2237 transitions. [2023-12-19 01:45:50,064 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 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) [2023-12-19 01:45:50,064 INFO L276 IsEmpty]: Start isEmpty. Operand 1447 states and 2237 transitions. [2023-12-19 01:45:50,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-12-19 01:45:50,067 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 01:45:50,067 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] [2023-12-19 01:45:50,067 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-19 01:45:50,067 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 01:45:50,067 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 01:45:50,067 INFO L85 PathProgramCache]: Analyzing trace with hash 1278842407, now seen corresponding path program 1 times [2023-12-19 01:45:50,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 01:45:50,068 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1743357160] [2023-12-19 01:45:50,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 01:45:50,068 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 01:45:50,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:45:50,226 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-19 01:45:50,226 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 01:45:50,226 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1743357160] [2023-12-19 01:45:50,226 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1743357160] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 01:45:50,226 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 01:45:50,226 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-19 01:45:50,226 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [982265249] [2023-12-19 01:45:50,226 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 01:45:50,227 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-19 01:45:50,227 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 01:45:50,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-19 01:45:50,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-19 01:45:50,227 INFO L87 Difference]: Start difference. First operand 1447 states and 2237 transitions. Second operand has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 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) [2023-12-19 01:45:50,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 01:45:50,865 INFO L93 Difference]: Finished difference Result 1503 states and 2312 transitions. [2023-12-19 01:45:50,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-19 01:45:50,866 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 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 30 [2023-12-19 01:45:50,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 01:45:50,874 INFO L225 Difference]: With dead ends: 1503 [2023-12-19 01:45:50,874 INFO L226 Difference]: Without dead ends: 1464 [2023-12-19 01:45:50,875 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 [2023-12-19 01:45:50,876 INFO L413 NwaCegarLoop]: 855 mSDtfsCounter, 949 mSDsluCounter, 633 mSDsCounter, 0 mSdLazyCounter, 367 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 949 SdHoareTripleChecker+Valid, 1488 SdHoareTripleChecker+Invalid, 383 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 367 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-19 01:45:50,877 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [949 Valid, 1488 Invalid, 383 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 367 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-19 01:45:50,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1464 states. [2023-12-19 01:45:50,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1464 to 1447. [2023-12-19 01:45:50,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1447 states, 1136 states have (on average 1.511443661971831) internal successors, (1717), 1133 states have internal predecessors, (1717), 224 states have call successors, (224), 80 states have call predecessors, (224), 86 states have return successors, (294), 233 states have call predecessors, (294), 216 states have call successors, (294) [2023-12-19 01:45:50,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1447 states to 1447 states and 2235 transitions. [2023-12-19 01:45:50,929 INFO L78 Accepts]: Start accepts. Automaton has 1447 states and 2235 transitions. Word has length 30 [2023-12-19 01:45:50,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 01:45:50,930 INFO L495 AbstractCegarLoop]: Abstraction has 1447 states and 2235 transitions. [2023-12-19 01:45:50,930 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 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) [2023-12-19 01:45:50,930 INFO L276 IsEmpty]: Start isEmpty. Operand 1447 states and 2235 transitions. [2023-12-19 01:45:50,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-12-19 01:45:50,932 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 01:45:50,932 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] [2023-12-19 01:45:50,932 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-19 01:45:50,932 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 01:45:50,933 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 01:45:50,933 INFO L85 PathProgramCache]: Analyzing trace with hash -361631646, now seen corresponding path program 1 times [2023-12-19 01:45:50,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 01:45:50,933 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [579033138] [2023-12-19 01:45:50,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 01:45:50,933 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 01:45:51,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:45:51,126 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-19 01:45:51,126 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 01:45:51,126 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [579033138] [2023-12-19 01:45:51,126 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [579033138] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 01:45:51,126 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 01:45:51,126 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-19 01:45:51,127 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1056748584] [2023-12-19 01:45:51,127 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 01:45:51,128 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-19 01:45:51,128 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 01:45:51,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-19 01:45:51,128 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-19 01:45:51,129 INFO L87 Difference]: Start difference. First operand 1447 states and 2235 transitions. Second operand has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 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) [2023-12-19 01:45:51,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 01:45:51,986 INFO L93 Difference]: Finished difference Result 1733 states and 2665 transitions. [2023-12-19 01:45:51,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-19 01:45:51,987 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 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 32 [2023-12-19 01:45:51,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 01:45:51,993 INFO L225 Difference]: With dead ends: 1733 [2023-12-19 01:45:51,993 INFO L226 Difference]: Without dead ends: 1724 [2023-12-19 01:45:51,994 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 [2023-12-19 01:45:51,994 INFO L413 NwaCegarLoop]: 1155 mSDtfsCounter, 1189 mSDsluCounter, 636 mSDsCounter, 0 mSdLazyCounter, 389 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1189 SdHoareTripleChecker+Valid, 1791 SdHoareTripleChecker+Invalid, 474 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 389 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-19 01:45:51,994 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1189 Valid, 1791 Invalid, 474 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [85 Valid, 389 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-19 01:45:51,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1724 states. [2023-12-19 01:45:52,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1724 to 1481. [2023-12-19 01:45:52,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1481 states, 1167 states have (on average 1.502999143101971) internal successors, (1754), 1157 states have internal predecessors, (1754), 224 states have call successors, (224), 80 states have call predecessors, (224), 89 states have return successors, (305), 243 states have call predecessors, (305), 216 states have call successors, (305) [2023-12-19 01:45:52,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1481 states to 1481 states and 2283 transitions. [2023-12-19 01:45:52,094 INFO L78 Accepts]: Start accepts. Automaton has 1481 states and 2283 transitions. Word has length 32 [2023-12-19 01:45:52,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 01:45:52,094 INFO L495 AbstractCegarLoop]: Abstraction has 1481 states and 2283 transitions. [2023-12-19 01:45:52,094 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 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) [2023-12-19 01:45:52,095 INFO L276 IsEmpty]: Start isEmpty. Operand 1481 states and 2283 transitions. [2023-12-19 01:45:52,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-12-19 01:45:52,096 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 01:45:52,096 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] [2023-12-19 01:45:52,097 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-19 01:45:52,097 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 01:45:52,097 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 01:45:52,097 INFO L85 PathProgramCache]: Analyzing trace with hash -361908476, now seen corresponding path program 1 times [2023-12-19 01:45:52,098 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 01:45:52,098 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1526893391] [2023-12-19 01:45:52,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 01:45:52,098 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 01:45:52,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:45:52,173 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-19 01:45:52,173 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 01:45:52,173 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1526893391] [2023-12-19 01:45:52,173 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1526893391] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 01:45:52,173 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 01:45:52,173 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-19 01:45:52,174 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [999262590] [2023-12-19 01:45:52,174 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 01:45:52,174 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-19 01:45:52,174 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 01:45:52,174 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-19 01:45:52,174 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-19 01:45:52,175 INFO L87 Difference]: Start difference. First operand 1481 states and 2283 transitions. Second operand has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 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) [2023-12-19 01:45:52,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 01:45:52,526 INFO L93 Difference]: Finished difference Result 2050 states and 3137 transitions. [2023-12-19 01:45:52,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-19 01:45:52,527 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 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 32 [2023-12-19 01:45:52,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 01:45:52,535 INFO L225 Difference]: With dead ends: 2050 [2023-12-19 01:45:52,535 INFO L226 Difference]: Without dead ends: 2022 [2023-12-19 01:45:52,536 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 [2023-12-19 01:45:52,536 INFO L413 NwaCegarLoop]: 862 mSDtfsCounter, 905 mSDsluCounter, 339 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 905 SdHoareTripleChecker+Valid, 1201 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-19 01:45:52,537 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [905 Valid, 1201 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-19 01:45:52,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2022 states. [2023-12-19 01:45:52,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2022 to 1990. [2023-12-19 01:45:52,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1990 states, 1566 states have (on average 1.5095785440613028) internal successors, (2364), 1562 states have internal predecessors, (2364), 294 states have call successors, (294), 114 states have call predecessors, (294), 129 states have return successors, (396), 313 states have call predecessors, (396), 286 states have call successors, (396) [2023-12-19 01:45:52,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1990 states to 1990 states and 3054 transitions. [2023-12-19 01:45:52,615 INFO L78 Accepts]: Start accepts. Automaton has 1990 states and 3054 transitions. Word has length 32 [2023-12-19 01:45:52,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 01:45:52,616 INFO L495 AbstractCegarLoop]: Abstraction has 1990 states and 3054 transitions. [2023-12-19 01:45:52,616 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 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) [2023-12-19 01:45:52,616 INFO L276 IsEmpty]: Start isEmpty. Operand 1990 states and 3054 transitions. [2023-12-19 01:45:52,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-12-19 01:45:52,617 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 01:45:52,617 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] [2023-12-19 01:45:52,617 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-12-19 01:45:52,617 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 01:45:52,617 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 01:45:52,618 INFO L85 PathProgramCache]: Analyzing trace with hash -376253385, now seen corresponding path program 1 times [2023-12-19 01:45:52,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 01:45:52,618 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [355635706] [2023-12-19 01:45:52,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 01:45:52,618 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 01:45:52,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:45:52,680 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-19 01:45:52,681 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 01:45:52,681 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [355635706] [2023-12-19 01:45:52,681 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [355635706] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 01:45:52,681 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 01:45:52,681 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-19 01:45:52,681 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1061108344] [2023-12-19 01:45:52,681 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 01:45:52,681 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-19 01:45:52,681 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 01:45:52,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-19 01:45:52,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-19 01:45:52,682 INFO L87 Difference]: Start difference. First operand 1990 states and 3054 transitions. Second operand has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 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) [2023-12-19 01:45:53,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 01:45:53,151 INFO L93 Difference]: Finished difference Result 2482 states and 3801 transitions. [2023-12-19 01:45:53,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-19 01:45:53,152 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 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 32 [2023-12-19 01:45:53,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 01:45:53,161 INFO L225 Difference]: With dead ends: 2482 [2023-12-19 01:45:53,162 INFO L226 Difference]: Without dead ends: 2469 [2023-12-19 01:45:53,163 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 [2023-12-19 01:45:53,163 INFO L413 NwaCegarLoop]: 1141 mSDtfsCounter, 347 mSDsluCounter, 823 mSDsCounter, 0 mSdLazyCounter, 177 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 347 SdHoareTripleChecker+Valid, 1964 SdHoareTripleChecker+Invalid, 180 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 177 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-19 01:45:53,163 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [347 Valid, 1964 Invalid, 180 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 177 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-19 01:45:53,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2469 states. [2023-12-19 01:45:53,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2469 to 1987. [2023-12-19 01:45:53,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1987 states, 1563 states have (on average 1.507997440818938) internal successors, (2357), 1559 states have internal predecessors, (2357), 294 states have call successors, (294), 114 states have call predecessors, (294), 129 states have return successors, (396), 313 states have call predecessors, (396), 286 states have call successors, (396) [2023-12-19 01:45:53,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1987 states to 1987 states and 3047 transitions. [2023-12-19 01:45:53,310 INFO L78 Accepts]: Start accepts. Automaton has 1987 states and 3047 transitions. Word has length 32 [2023-12-19 01:45:53,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 01:45:53,310 INFO L495 AbstractCegarLoop]: Abstraction has 1987 states and 3047 transitions. [2023-12-19 01:45:53,311 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 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) [2023-12-19 01:45:53,311 INFO L276 IsEmpty]: Start isEmpty. Operand 1987 states and 3047 transitions. [2023-12-19 01:45:53,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-12-19 01:45:53,312 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 01:45:53,312 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] [2023-12-19 01:45:53,312 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-12-19 01:45:53,312 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 01:45:53,312 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 01:45:53,312 INFO L85 PathProgramCache]: Analyzing trace with hash 938308919, now seen corresponding path program 1 times [2023-12-19 01:45:53,312 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 01:45:53,313 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [567714577] [2023-12-19 01:45:53,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 01:45:53,313 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 01:45:53,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:45:53,429 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-19 01:45:53,429 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 01:45:53,429 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [567714577] [2023-12-19 01:45:53,429 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [567714577] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 01:45:53,429 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 01:45:53,429 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-19 01:45:53,430 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1492601907] [2023-12-19 01:45:53,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 01:45:53,430 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-19 01:45:53,430 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 01:45:53,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-19 01:45:53,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-19 01:45:53,430 INFO L87 Difference]: Start difference. First operand 1987 states and 3047 transitions. Second operand has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 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) [2023-12-19 01:45:54,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 01:45:54,038 INFO L93 Difference]: Finished difference Result 2015 states and 3077 transitions. [2023-12-19 01:45:54,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-19 01:45:54,039 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 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 32 [2023-12-19 01:45:54,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 01:45:54,045 INFO L225 Difference]: With dead ends: 2015 [2023-12-19 01:45:54,045 INFO L226 Difference]: Without dead ends: 1974 [2023-12-19 01:45:54,046 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 [2023-12-19 01:45:54,047 INFO L413 NwaCegarLoop]: 853 mSDtfsCounter, 928 mSDsluCounter, 633 mSDsCounter, 0 mSdLazyCounter, 348 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 928 SdHoareTripleChecker+Valid, 1486 SdHoareTripleChecker+Invalid, 356 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 348 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-19 01:45:54,047 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [928 Valid, 1486 Invalid, 356 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 348 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-19 01:45:54,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1974 states. [2023-12-19 01:45:54,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1974 to 1972. [2023-12-19 01:45:54,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1972 states, 1550 states have (on average 1.5096774193548388) internal successors, (2340), 1553 states have internal predecessors, (2340), 294 states have call successors, (294), 114 states have call predecessors, (294), 127 states have return successors, (386), 304 states have call predecessors, (386), 286 states have call successors, (386) [2023-12-19 01:45:54,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1972 states to 1972 states and 3020 transitions. [2023-12-19 01:45:54,121 INFO L78 Accepts]: Start accepts. Automaton has 1972 states and 3020 transitions. Word has length 32 [2023-12-19 01:45:54,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 01:45:54,121 INFO L495 AbstractCegarLoop]: Abstraction has 1972 states and 3020 transitions. [2023-12-19 01:45:54,121 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 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) [2023-12-19 01:45:54,121 INFO L276 IsEmpty]: Start isEmpty. Operand 1972 states and 3020 transitions. [2023-12-19 01:45:54,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2023-12-19 01:45:54,122 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 01:45:54,122 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] [2023-12-19 01:45:54,122 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-12-19 01:45:54,122 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 01:45:54,123 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 01:45:54,123 INFO L85 PathProgramCache]: Analyzing trace with hash 1674224074, now seen corresponding path program 1 times [2023-12-19 01:45:54,123 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 01:45:54,123 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1018414569] [2023-12-19 01:45:54,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 01:45:54,123 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 01:45:54,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:45:54,227 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-19 01:45:54,228 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 01:45:54,228 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1018414569] [2023-12-19 01:45:54,228 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1018414569] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 01:45:54,228 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 01:45:54,228 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-19 01:45:54,228 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [99476571] [2023-12-19 01:45:54,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 01:45:54,228 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-19 01:45:54,228 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 01:45:54,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-19 01:45:54,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-19 01:45:54,229 INFO L87 Difference]: Start difference. First operand 1972 states and 3020 transitions. Second operand has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 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) [2023-12-19 01:45:54,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 01:45:54,665 INFO L93 Difference]: Finished difference Result 1984 states and 3032 transitions. [2023-12-19 01:45:54,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-19 01:45:54,666 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 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 33 [2023-12-19 01:45:54,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 01:45:54,672 INFO L225 Difference]: With dead ends: 1984 [2023-12-19 01:45:54,672 INFO L226 Difference]: Without dead ends: 1962 [2023-12-19 01:45:54,673 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-19 01:45:54,673 INFO L413 NwaCegarLoop]: 863 mSDtfsCounter, 1 mSDsluCounter, 1708 mSDsCounter, 0 mSdLazyCounter, 187 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 2571 SdHoareTripleChecker+Invalid, 187 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 187 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-19 01:45:54,673 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 2571 Invalid, 187 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 187 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-19 01:45:54,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1962 states. [2023-12-19 01:45:54,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1962 to 1962. [2023-12-19 01:45:54,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1962 states, 1540 states have (on average 1.511038961038961) internal successors, (2327), 1543 states have internal predecessors, (2327), 294 states have call successors, (294), 114 states have call predecessors, (294), 127 states have return successors, (386), 304 states have call predecessors, (386), 286 states have call successors, (386) [2023-12-19 01:45:54,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1962 states to 1962 states and 3007 transitions. [2023-12-19 01:45:54,745 INFO L78 Accepts]: Start accepts. Automaton has 1962 states and 3007 transitions. Word has length 33 [2023-12-19 01:45:54,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 01:45:54,745 INFO L495 AbstractCegarLoop]: Abstraction has 1962 states and 3007 transitions. [2023-12-19 01:45:54,745 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 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) [2023-12-19 01:45:54,746 INFO L276 IsEmpty]: Start isEmpty. Operand 1962 states and 3007 transitions. [2023-12-19 01:45:54,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2023-12-19 01:45:54,746 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 01:45:54,747 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] [2023-12-19 01:45:54,747 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-12-19 01:45:54,747 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 01:45:54,747 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 01:45:54,747 INFO L85 PathProgramCache]: Analyzing trace with hash 1341426325, now seen corresponding path program 1 times [2023-12-19 01:45:54,747 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 01:45:54,747 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1981775407] [2023-12-19 01:45:54,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 01:45:54,748 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 01:45:54,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:45:54,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-19 01:45:54,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:45:54,976 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-19 01:45:54,976 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 01:45:54,976 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1981775407] [2023-12-19 01:45:54,979 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1981775407] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 01:45:54,980 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 01:45:54,980 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-19 01:45:54,980 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [636107034] [2023-12-19 01:45:54,980 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 01:45:54,980 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-19 01:45:54,980 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 01:45:54,981 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-19 01:45:54,981 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-19 01:45:54,981 INFO L87 Difference]: Start difference. First operand 1962 states and 3007 transitions. Second operand has 5 states, 5 states have (on average 6.6) internal successors, (33), 4 states have internal predecessors, (33), 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) [2023-12-19 01:45:58,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 01:45:58,463 INFO L93 Difference]: Finished difference Result 2734 states and 4125 transitions. [2023-12-19 01:45:58,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-19 01:45:58,464 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 4 states have internal predecessors, (33), 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 39 [2023-12-19 01:45:58,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 01:45:58,469 INFO L225 Difference]: With dead ends: 2734 [2023-12-19 01:45:58,469 INFO L226 Difference]: Without dead ends: 1220 [2023-12-19 01:45:58,472 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 [2023-12-19 01:45:58,472 INFO L413 NwaCegarLoop]: 795 mSDtfsCounter, 792 mSDsluCounter, 1465 mSDsCounter, 0 mSdLazyCounter, 713 mSolverCounterSat, 274 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 797 SdHoareTripleChecker+Valid, 2260 SdHoareTripleChecker+Invalid, 987 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 274 IncrementalHoareTripleChecker+Valid, 713 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2023-12-19 01:45:58,472 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [797 Valid, 2260 Invalid, 987 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [274 Valid, 713 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2023-12-19 01:45:58,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1220 states. [2023-12-19 01:45:58,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1220 to 1102. [2023-12-19 01:45:58,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1102 states, 866 states have (on average 1.497690531177829) internal successors, (1297), 872 states have internal predecessors, (1297), 164 states have call successors, (164), 64 states have call predecessors, (164), 71 states have return successors, (209), 165 states have call predecessors, (209), 156 states have call successors, (209) [2023-12-19 01:45:58,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1102 states to 1102 states and 1670 transitions. [2023-12-19 01:45:58,521 INFO L78 Accepts]: Start accepts. Automaton has 1102 states and 1670 transitions. Word has length 39 [2023-12-19 01:45:58,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 01:45:58,521 INFO L495 AbstractCegarLoop]: Abstraction has 1102 states and 1670 transitions. [2023-12-19 01:45:58,521 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 4 states have internal predecessors, (33), 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) [2023-12-19 01:45:58,521 INFO L276 IsEmpty]: Start isEmpty. Operand 1102 states and 1670 transitions. [2023-12-19 01:45:58,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2023-12-19 01:45:58,522 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 01:45:58,522 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] [2023-12-19 01:45:58,523 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-12-19 01:45:58,523 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 01:45:58,523 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 01:45:58,523 INFO L85 PathProgramCache]: Analyzing trace with hash 1858260703, now seen corresponding path program 1 times [2023-12-19 01:45:58,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 01:45:58,523 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1496312671] [2023-12-19 01:45:58,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 01:45:58,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 01:45:58,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:45:58,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-19 01:45:58,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:45:58,616 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-19 01:45:58,616 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 01:45:58,616 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1496312671] [2023-12-19 01:45:58,616 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1496312671] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 01:45:58,616 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 01:45:58,616 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-19 01:45:58,616 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [246763093] [2023-12-19 01:45:58,616 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 01:45:58,616 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-19 01:45:58,617 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 01:45:58,617 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-19 01:45:58,617 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-19 01:45:58,618 INFO L87 Difference]: Start difference. First operand 1102 states and 1670 transitions. Second operand has 4 states, 4 states have (on average 8.75) internal successors, (35), 3 states have internal predecessors, (35), 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) [2023-12-19 01:46:01,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 01:46:01,172 INFO L93 Difference]: Finished difference Result 1682 states and 2540 transitions. [2023-12-19 01:46:01,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-19 01:46:01,174 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 3 states have internal predecessors, (35), 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) Word has length 40 [2023-12-19 01:46:01,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 01:46:01,195 INFO L225 Difference]: With dead ends: 1682 [2023-12-19 01:46:01,195 INFO L226 Difference]: Without dead ends: 1077 [2023-12-19 01:46:01,198 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 [2023-12-19 01:46:01,201 INFO L413 NwaCegarLoop]: 755 mSDtfsCounter, 906 mSDsluCounter, 489 mSDsCounter, 0 mSdLazyCounter, 346 mSolverCounterSat, 135 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 988 SdHoareTripleChecker+Valid, 1244 SdHoareTripleChecker+Invalid, 481 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 135 IncrementalHoareTripleChecker+Valid, 346 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2023-12-19 01:46:01,201 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [988 Valid, 1244 Invalid, 481 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [135 Valid, 346 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2023-12-19 01:46:01,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1077 states. [2023-12-19 01:46:01,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1077 to 1045. [2023-12-19 01:46:01,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1045 states, 816 states have (on average 1.4901960784313726) internal successors, (1216), 820 states have internal predecessors, (1216), 161 states have call successors, (161), 63 states have call predecessors, (161), 67 states have return successors, (205), 161 states have call predecessors, (205), 155 states have call successors, (205) [2023-12-19 01:46:01,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1045 states to 1045 states and 1582 transitions. [2023-12-19 01:46:01,391 INFO L78 Accepts]: Start accepts. Automaton has 1045 states and 1582 transitions. Word has length 40 [2023-12-19 01:46:01,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 01:46:01,391 INFO L495 AbstractCegarLoop]: Abstraction has 1045 states and 1582 transitions. [2023-12-19 01:46:01,391 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 3 states have internal predecessors, (35), 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) [2023-12-19 01:46:01,391 INFO L276 IsEmpty]: Start isEmpty. Operand 1045 states and 1582 transitions. [2023-12-19 01:46:01,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2023-12-19 01:46:01,393 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 01:46:01,393 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] [2023-12-19 01:46:01,393 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-12-19 01:46:01,393 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 01:46:01,394 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 01:46:01,394 INFO L85 PathProgramCache]: Analyzing trace with hash 1862495518, now seen corresponding path program 1 times [2023-12-19 01:46:01,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 01:46:01,394 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2034005863] [2023-12-19 01:46:01,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 01:46:01,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 01:46:01,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:46:01,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-19 01:46:01,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:46:01,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-12-19 01:46:01,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:46:01,499 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-19 01:46:01,499 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 01:46:01,499 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2034005863] [2023-12-19 01:46:01,500 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2034005863] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 01:46:01,500 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 01:46:01,500 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-19 01:46:01,501 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [81745467] [2023-12-19 01:46:01,501 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 01:46:01,501 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-19 01:46:01,501 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 01:46:01,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-19 01:46:01,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-19 01:46:01,502 INFO L87 Difference]: Start difference. First operand 1045 states and 1582 transitions. Second operand has 5 states, 5 states have (on average 7.2) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-12-19 01:46:03,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 01:46:03,931 INFO L93 Difference]: Finished difference Result 1100 states and 1673 transitions. [2023-12-19 01:46:03,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-19 01:46:03,932 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 41 [2023-12-19 01:46:03,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 01:46:03,935 INFO L225 Difference]: With dead ends: 1100 [2023-12-19 01:46:03,935 INFO L226 Difference]: Without dead ends: 1073 [2023-12-19 01:46:03,936 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-19 01:46:03,936 INFO L413 NwaCegarLoop]: 710 mSDtfsCounter, 309 mSDsluCounter, 1621 mSDsCounter, 0 mSdLazyCounter, 772 mSolverCounterSat, 227 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 313 SdHoareTripleChecker+Valid, 2331 SdHoareTripleChecker+Invalid, 999 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 227 IncrementalHoareTripleChecker+Valid, 772 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2023-12-19 01:46:03,936 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [313 Valid, 2331 Invalid, 999 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [227 Valid, 772 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2023-12-19 01:46:03,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1073 states. [2023-12-19 01:46:03,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1073 to 1013. [2023-12-19 01:46:03,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1013 states, 793 states have (on average 1.4905422446406054) internal successors, (1182), 800 states have internal predecessors, (1182), 156 states have call successors, (156), 58 states have call predecessors, (156), 63 states have return successors, (212), 154 states have call predecessors, (212), 150 states have call successors, (212) [2023-12-19 01:46:03,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1013 states to 1013 states and 1550 transitions. [2023-12-19 01:46:03,986 INFO L78 Accepts]: Start accepts. Automaton has 1013 states and 1550 transitions. Word has length 41 [2023-12-19 01:46:03,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 01:46:03,987 INFO L495 AbstractCegarLoop]: Abstraction has 1013 states and 1550 transitions. [2023-12-19 01:46:03,987 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-12-19 01:46:03,987 INFO L276 IsEmpty]: Start isEmpty. Operand 1013 states and 1550 transitions. [2023-12-19 01:46:03,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2023-12-19 01:46:03,988 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 01:46:03,988 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] [2023-12-19 01:46:03,988 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-12-19 01:46:03,989 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 01:46:03,989 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 01:46:03,989 INFO L85 PathProgramCache]: Analyzing trace with hash 1044847068, now seen corresponding path program 1 times [2023-12-19 01:46:03,989 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 01:46:03,989 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1287289325] [2023-12-19 01:46:03,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 01:46:03,989 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 01:46:04,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:46:04,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-19 01:46:04,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:46:04,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-12-19 01:46:04,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:46:04,078 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-19 01:46:04,078 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 01:46:04,078 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1287289325] [2023-12-19 01:46:04,078 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1287289325] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 01:46:04,078 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 01:46:04,079 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-19 01:46:04,079 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [663461662] [2023-12-19 01:46:04,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 01:46:04,079 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-19 01:46:04,079 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 01:46:04,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-19 01:46:04,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-19 01:46:04,080 INFO L87 Difference]: Start difference. First operand 1013 states and 1550 transitions. Second operand has 5 states, 5 states have (on average 7.2) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-12-19 01:46:06,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 01:46:06,483 INFO L93 Difference]: Finished difference Result 1048 states and 1602 transitions. [2023-12-19 01:46:06,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-19 01:46:06,484 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 41 [2023-12-19 01:46:06,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 01:46:06,487 INFO L225 Difference]: With dead ends: 1048 [2023-12-19 01:46:06,488 INFO L226 Difference]: Without dead ends: 1041 [2023-12-19 01:46:06,488 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-19 01:46:06,488 INFO L413 NwaCegarLoop]: 708 mSDtfsCounter, 284 mSDsluCounter, 1667 mSDsCounter, 0 mSdLazyCounter, 770 mSolverCounterSat, 221 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 286 SdHoareTripleChecker+Valid, 2375 SdHoareTripleChecker+Invalid, 991 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 221 IncrementalHoareTripleChecker+Valid, 770 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2023-12-19 01:46:06,488 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [286 Valid, 2375 Invalid, 991 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [221 Valid, 770 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2023-12-19 01:46:06,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1041 states. [2023-12-19 01:46:06,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1041 to 1024. [2023-12-19 01:46:06,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1024 states, 804 states have (on average 1.486318407960199) internal successors, (1195), 811 states have internal predecessors, (1195), 156 states have call successors, (156), 58 states have call predecessors, (156), 63 states have return successors, (212), 154 states have call predecessors, (212), 150 states have call successors, (212) [2023-12-19 01:46:06,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1024 states to 1024 states and 1563 transitions. [2023-12-19 01:46:06,583 INFO L78 Accepts]: Start accepts. Automaton has 1024 states and 1563 transitions. Word has length 41 [2023-12-19 01:46:06,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 01:46:06,583 INFO L495 AbstractCegarLoop]: Abstraction has 1024 states and 1563 transitions. [2023-12-19 01:46:06,583 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-12-19 01:46:06,583 INFO L276 IsEmpty]: Start isEmpty. Operand 1024 states and 1563 transitions. [2023-12-19 01:46:06,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2023-12-19 01:46:06,585 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 01:46:06,585 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] [2023-12-19 01:46:06,585 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-12-19 01:46:06,585 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 01:46:06,586 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 01:46:06,586 INFO L85 PathProgramCache]: Analyzing trace with hash -1960700314, now seen corresponding path program 1 times [2023-12-19 01:46:06,586 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 01:46:06,586 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2012558222] [2023-12-19 01:46:06,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 01:46:06,586 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 01:46:06,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:46:06,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-19 01:46:06,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:46:06,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-12-19 01:46:06,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:46:06,753 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-19 01:46:06,754 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 01:46:06,754 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2012558222] [2023-12-19 01:46:06,754 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2012558222] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 01:46:06,754 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 01:46:06,754 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-19 01:46:06,754 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [978269680] [2023-12-19 01:46:06,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 01:46:06,755 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-19 01:46:06,755 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 01:46:06,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-19 01:46:06,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-19 01:46:06,755 INFO L87 Difference]: Start difference. First operand 1024 states and 1563 transitions. Second operand has 7 states, 7 states have (on average 5.285714285714286) internal successors, (37), 5 states have internal predecessors, (37), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-12-19 01:46:10,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 01:46:10,195 INFO L93 Difference]: Finished difference Result 1048 states and 1598 transitions. [2023-12-19 01:46:10,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-19 01:46:10,195 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.285714285714286) internal successors, (37), 5 states have internal predecessors, (37), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 42 [2023-12-19 01:46:10,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 01:46:10,199 INFO L225 Difference]: With dead ends: 1048 [2023-12-19 01:46:10,199 INFO L226 Difference]: Without dead ends: 1043 [2023-12-19 01:46:10,199 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=69, Invalid=141, Unknown=0, NotChecked=0, Total=210 [2023-12-19 01:46:10,199 INFO L413 NwaCegarLoop]: 707 mSDtfsCounter, 1117 mSDsluCounter, 2115 mSDsCounter, 0 mSdLazyCounter, 1218 mSolverCounterSat, 267 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1207 SdHoareTripleChecker+Valid, 2822 SdHoareTripleChecker+Invalid, 1485 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 267 IncrementalHoareTripleChecker+Valid, 1218 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2023-12-19 01:46:10,200 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1207 Valid, 2822 Invalid, 1485 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [267 Valid, 1218 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2023-12-19 01:46:10,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1043 states. [2023-12-19 01:46:10,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1043 to 1024. [2023-12-19 01:46:10,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1024 states, 804 states have (on average 1.4850746268656716) internal successors, (1194), 811 states have internal predecessors, (1194), 156 states have call successors, (156), 58 states have call predecessors, (156), 63 states have return successors, (212), 154 states have call predecessors, (212), 150 states have call successors, (212) [2023-12-19 01:46:10,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1024 states to 1024 states and 1562 transitions. [2023-12-19 01:46:10,250 INFO L78 Accepts]: Start accepts. Automaton has 1024 states and 1562 transitions. Word has length 42 [2023-12-19 01:46:10,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 01:46:10,251 INFO L495 AbstractCegarLoop]: Abstraction has 1024 states and 1562 transitions. [2023-12-19 01:46:10,251 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.285714285714286) internal successors, (37), 5 states have internal predecessors, (37), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-12-19 01:46:10,251 INFO L276 IsEmpty]: Start isEmpty. Operand 1024 states and 1562 transitions. [2023-12-19 01:46:10,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2023-12-19 01:46:10,252 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 01:46:10,252 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] [2023-12-19 01:46:10,252 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-12-19 01:46:10,252 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 01:46:10,253 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 01:46:10,253 INFO L85 PathProgramCache]: Analyzing trace with hash -927658210, now seen corresponding path program 1 times [2023-12-19 01:46:10,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 01:46:10,253 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [955607596] [2023-12-19 01:46:10,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 01:46:10,253 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 01:46:10,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:46:10,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-19 01:46:10,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:46:10,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-12-19 01:46:10,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:46:10,361 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-19 01:46:10,362 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 01:46:10,362 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [955607596] [2023-12-19 01:46:10,362 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [955607596] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 01:46:10,362 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 01:46:10,362 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-19 01:46:10,362 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [811352892] [2023-12-19 01:46:10,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 01:46:10,363 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-19 01:46:10,363 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 01:46:10,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-19 01:46:10,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-19 01:46:10,364 INFO L87 Difference]: Start difference. First operand 1024 states and 1562 transitions. Second operand has 5 states, 5 states have (on average 7.6) internal successors, (38), 3 states have internal predecessors, (38), 1 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-12-19 01:46:12,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 01:46:12,566 INFO L93 Difference]: Finished difference Result 2064 states and 3156 transitions. [2023-12-19 01:46:12,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-19 01:46:12,567 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 3 states have internal predecessors, (38), 1 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 43 [2023-12-19 01:46:12,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 01:46:12,571 INFO L225 Difference]: With dead ends: 2064 [2023-12-19 01:46:12,572 INFO L226 Difference]: Without dead ends: 1042 [2023-12-19 01:46:12,574 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-19 01:46:12,574 INFO L413 NwaCegarLoop]: 713 mSDtfsCounter, 258 mSDsluCounter, 1706 mSDsCounter, 0 mSdLazyCounter, 743 mSolverCounterSat, 218 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 260 SdHoareTripleChecker+Valid, 2419 SdHoareTripleChecker+Invalid, 961 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 218 IncrementalHoareTripleChecker+Valid, 743 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2023-12-19 01:46:12,575 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [260 Valid, 2419 Invalid, 961 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [218 Valid, 743 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2023-12-19 01:46:12,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1042 states. [2023-12-19 01:46:12,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1042 to 1027. [2023-12-19 01:46:12,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1027 states, 807 states have (on average 1.483271375464684) internal successors, (1197), 814 states have internal predecessors, (1197), 156 states have call successors, (156), 58 states have call predecessors, (156), 63 states have return successors, (212), 154 states have call predecessors, (212), 150 states have call successors, (212) [2023-12-19 01:46:12,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1027 states to 1027 states and 1565 transitions. [2023-12-19 01:46:12,658 INFO L78 Accepts]: Start accepts. Automaton has 1027 states and 1565 transitions. Word has length 43 [2023-12-19 01:46:12,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 01:46:12,658 INFO L495 AbstractCegarLoop]: Abstraction has 1027 states and 1565 transitions. [2023-12-19 01:46:12,658 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 3 states have internal predecessors, (38), 1 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-12-19 01:46:12,658 INFO L276 IsEmpty]: Start isEmpty. Operand 1027 states and 1565 transitions. [2023-12-19 01:46:12,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2023-12-19 01:46:12,659 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 01:46:12,659 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] [2023-12-19 01:46:12,660 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-12-19 01:46:12,660 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 01:46:12,660 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 01:46:12,660 INFO L85 PathProgramCache]: Analyzing trace with hash 738408431, now seen corresponding path program 1 times [2023-12-19 01:46:12,660 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 01:46:12,660 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1561201035] [2023-12-19 01:46:12,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 01:46:12,660 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 01:46:12,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:46:12,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-19 01:46:12,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:46:12,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-19 01:46:12,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:46:12,797 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-19 01:46:12,797 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 01:46:12,797 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1561201035] [2023-12-19 01:46:12,797 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1561201035] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-19 01:46:12,797 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [156168604] [2023-12-19 01:46:12,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 01:46:12,797 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 01:46:12,798 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 01:46:12,800 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 01:46:12,836 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-19 01:46:13,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:46:13,320 INFO L262 TraceCheckSpWp]: Trace formula consists of 650 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-19 01:46:13,325 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 01:46:13,360 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-19 01:46:13,360 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-19 01:46:13,404 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-19 01:46:13,405 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [156168604] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-19 01:46:13,405 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-19 01:46:13,406 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 4, 4] total 9 [2023-12-19 01:46:13,406 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1814875691] [2023-12-19 01:46:13,406 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-19 01:46:13,407 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-19 01:46:13,407 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 01:46:13,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-19 01:46:13,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2023-12-19 01:46:13,407 INFO L87 Difference]: Start difference. First operand 1027 states and 1565 transitions. Second operand has 9 states, 9 states have (on average 6.666666666666667) internal successors, (60), 7 states have internal predecessors, (60), 1 states have call successors, (7), 4 states have call predecessors, (7), 2 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-12-19 01:46:18,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 01:46:18,713 INFO L93 Difference]: Finished difference Result 2071 states and 3165 transitions. [2023-12-19 01:46:18,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-19 01:46:18,714 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.666666666666667) internal successors, (60), 7 states have internal predecessors, (60), 1 states have call successors, (7), 4 states have call predecessors, (7), 2 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 46 [2023-12-19 01:46:18,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 01:46:18,717 INFO L225 Difference]: With dead ends: 2071 [2023-12-19 01:46:18,717 INFO L226 Difference]: Without dead ends: 1047 [2023-12-19 01:46:18,719 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2023-12-19 01:46:18,723 INFO L413 NwaCegarLoop]: 711 mSDtfsCounter, 262 mSDsluCounter, 4266 mSDsCounter, 0 mSdLazyCounter, 1792 mSolverCounterSat, 227 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 264 SdHoareTripleChecker+Valid, 4977 SdHoareTripleChecker+Invalid, 2019 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 227 IncrementalHoareTripleChecker+Valid, 1792 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2023-12-19 01:46:18,724 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [264 Valid, 4977 Invalid, 2019 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [227 Valid, 1792 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time] [2023-12-19 01:46:18,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1047 states. [2023-12-19 01:46:18,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1047 to 1032. [2023-12-19 01:46:18,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1032 states, 812 states have (on average 1.480295566502463) internal successors, (1202), 819 states have internal predecessors, (1202), 156 states have call successors, (156), 58 states have call predecessors, (156), 63 states have return successors, (212), 154 states have call predecessors, (212), 150 states have call successors, (212) [2023-12-19 01:46:18,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1032 states to 1032 states and 1570 transitions. [2023-12-19 01:46:18,778 INFO L78 Accepts]: Start accepts. Automaton has 1032 states and 1570 transitions. Word has length 46 [2023-12-19 01:46:18,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 01:46:18,779 INFO L495 AbstractCegarLoop]: Abstraction has 1032 states and 1570 transitions. [2023-12-19 01:46:18,779 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.666666666666667) internal successors, (60), 7 states have internal predecessors, (60), 1 states have call successors, (7), 4 states have call predecessors, (7), 2 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-12-19 01:46:18,779 INFO L276 IsEmpty]: Start isEmpty. Operand 1032 states and 1570 transitions. [2023-12-19 01:46:18,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2023-12-19 01:46:18,780 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 01:46:18,780 INFO L195 NwaCegarLoop]: trace histogram [4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 01:46:18,803 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-19 01:46:18,991 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 01:46:18,992 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 01:46:18,992 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 01:46:18,992 INFO L85 PathProgramCache]: Analyzing trace with hash -1544839650, now seen corresponding path program 2 times [2023-12-19 01:46:18,992 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 01:46:18,992 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [924610630] [2023-12-19 01:46:18,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 01:46:18,993 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 01:46:19,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:46:19,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-19 01:46:19,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:46:19,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-12-19 01:46:19,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:46:19,226 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-12-19 01:46:19,227 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 01:46:19,227 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [924610630] [2023-12-19 01:46:19,227 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [924610630] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-19 01:46:19,227 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [254708658] [2023-12-19 01:46:19,227 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-19 01:46:19,227 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 01:46:19,227 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 01:46:19,240 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 01:46:19,241 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-19 01:46:19,676 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-12-19 01:46:19,676 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-19 01:46:19,679 INFO L262 TraceCheckSpWp]: Trace formula consists of 587 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-19 01:46:19,682 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 01:46:19,707 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-12-19 01:46:19,707 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 01:46:19,707 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [254708658] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 01:46:19,707 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-19 01:46:19,707 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 9 [2023-12-19 01:46:19,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [515952840] [2023-12-19 01:46:19,710 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 01:46:19,710 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-19 01:46:19,710 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 01:46:19,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-19 01:46:19,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2023-12-19 01:46:19,711 INFO L87 Difference]: Start difference. First operand 1032 states and 1570 transitions. Second operand has 4 states, 3 states have (on average 13.666666666666666) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2023-12-19 01:46:20,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 01:46:20,140 INFO L93 Difference]: Finished difference Result 1791 states and 2756 transitions. [2023-12-19 01:46:20,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-19 01:46:20,141 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 13.666666666666666) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 51 [2023-12-19 01:46:20,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 01:46:20,144 INFO L225 Difference]: With dead ends: 1791 [2023-12-19 01:46:20,144 INFO L226 Difference]: Without dead ends: 1037 [2023-12-19 01:46:20,146 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2023-12-19 01:46:20,146 INFO L413 NwaCegarLoop]: 842 mSDtfsCounter, 1 mSDsluCounter, 1678 mSDsCounter, 0 mSdLazyCounter, 161 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 2520 SdHoareTripleChecker+Invalid, 165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 161 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-19 01:46:20,147 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 2520 Invalid, 165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 161 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-19 01:46:20,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1037 states. [2023-12-19 01:46:20,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1037 to 1037. [2023-12-19 01:46:20,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1037 states, 817 states have (on average 1.477356181150551) internal successors, (1207), 824 states have internal predecessors, (1207), 156 states have call successors, (156), 58 states have call predecessors, (156), 63 states have return successors, (212), 154 states have call predecessors, (212), 150 states have call successors, (212) [2023-12-19 01:46:20,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1037 states to 1037 states and 1575 transitions. [2023-12-19 01:46:20,195 INFO L78 Accepts]: Start accepts. Automaton has 1037 states and 1575 transitions. Word has length 51 [2023-12-19 01:46:20,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 01:46:20,195 INFO L495 AbstractCegarLoop]: Abstraction has 1037 states and 1575 transitions. [2023-12-19 01:46:20,195 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 13.666666666666666) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2023-12-19 01:46:20,195 INFO L276 IsEmpty]: Start isEmpty. Operand 1037 states and 1575 transitions. [2023-12-19 01:46:20,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2023-12-19 01:46:20,196 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 01:46:20,196 INFO L195 NwaCegarLoop]: trace histogram [4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 01:46:20,204 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-12-19 01:46:20,404 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2023-12-19 01:46:20,404 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 01:46:20,404 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 01:46:20,405 INFO L85 PathProgramCache]: Analyzing trace with hash -881763676, now seen corresponding path program 1 times [2023-12-19 01:46:20,405 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 01:46:20,405 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1628194643] [2023-12-19 01:46:20,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 01:46:20,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 01:46:20,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:46:20,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-12-19 01:46:20,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:46:20,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-12-19 01:46:20,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:46:20,550 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-12-19 01:46:20,550 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 01:46:20,550 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1628194643] [2023-12-19 01:46:20,550 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1628194643] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 01:46:20,550 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 01:46:20,550 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-19 01:46:20,550 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [577745315] [2023-12-19 01:46:20,550 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 01:46:20,550 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-19 01:46:20,551 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 01:46:20,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-19 01:46:20,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-19 01:46:20,551 INFO L87 Difference]: Start difference. First operand 1037 states and 1575 transitions. Second operand has 5 states, 5 states have (on average 8.4) internal successors, (42), 3 states have internal predecessors, (42), 3 states have call successors, (5), 5 states have call predecessors, (5), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-12-19 01:46:24,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 01:46:24,859 INFO L93 Difference]: Finished difference Result 1616 states and 2437 transitions. [2023-12-19 01:46:24,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-19 01:46:24,861 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 3 states have internal predecessors, (42), 3 states have call successors, (5), 5 states have call predecessors, (5), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 54 [2023-12-19 01:46:24,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 01:46:24,865 INFO L225 Difference]: With dead ends: 1616 [2023-12-19 01:46:24,865 INFO L226 Difference]: Without dead ends: 1135 [2023-12-19 01:46:24,866 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-12-19 01:46:24,867 INFO L413 NwaCegarLoop]: 772 mSDtfsCounter, 625 mSDsluCounter, 1491 mSDsCounter, 0 mSdLazyCounter, 768 mSolverCounterSat, 246 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 653 SdHoareTripleChecker+Valid, 2263 SdHoareTripleChecker+Invalid, 1014 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 246 IncrementalHoareTripleChecker+Valid, 768 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2023-12-19 01:46:24,867 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [653 Valid, 2263 Invalid, 1014 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [246 Valid, 768 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2023-12-19 01:46:24,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1135 states. [2023-12-19 01:46:24,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1135 to 1037. [2023-12-19 01:46:24,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1037 states, 817 states have (on average 1.4761321909424725) internal successors, (1206), 824 states have internal predecessors, (1206), 156 states have call successors, (156), 58 states have call predecessors, (156), 63 states have return successors, (212), 154 states have call predecessors, (212), 150 states have call successors, (212) [2023-12-19 01:46:24,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1037 states to 1037 states and 1574 transitions. [2023-12-19 01:46:24,922 INFO L78 Accepts]: Start accepts. Automaton has 1037 states and 1574 transitions. Word has length 54 [2023-12-19 01:46:24,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 01:46:24,922 INFO L495 AbstractCegarLoop]: Abstraction has 1037 states and 1574 transitions. [2023-12-19 01:46:24,923 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 3 states have internal predecessors, (42), 3 states have call successors, (5), 5 states have call predecessors, (5), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-12-19 01:46:24,923 INFO L276 IsEmpty]: Start isEmpty. Operand 1037 states and 1574 transitions. [2023-12-19 01:46:24,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2023-12-19 01:46:24,924 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 01:46:24,924 INFO L195 NwaCegarLoop]: trace histogram [4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 01:46:24,924 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-12-19 01:46:24,924 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 01:46:24,924 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 01:46:24,924 INFO L85 PathProgramCache]: Analyzing trace with hash -1837187951, now seen corresponding path program 1 times [2023-12-19 01:46:24,925 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 01:46:24,926 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1707108496] [2023-12-19 01:46:24,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 01:46:24,926 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 01:46:24,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:46:25,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-12-19 01:46:25,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:46:25,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-19 01:46:25,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:46:25,245 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-12-19 01:46:25,245 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 01:46:25,245 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1707108496] [2023-12-19 01:46:25,245 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1707108496] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 01:46:25,247 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 01:46:25,247 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-12-19 01:46:25,247 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [597600183] [2023-12-19 01:46:25,247 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 01:46:25,247 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-19 01:46:25,248 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 01:46:25,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-19 01:46:25,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2023-12-19 01:46:25,248 INFO L87 Difference]: Start difference. First operand 1037 states and 1574 transitions. Second operand has 11 states, 9 states have (on average 4.777777777777778) internal successors, (43), 7 states have internal predecessors, (43), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-12-19 01:46:31,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 01:46:31,960 INFO L93 Difference]: Finished difference Result 1075 states and 1633 transitions. [2023-12-19 01:46:31,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-19 01:46:31,960 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 4.777777777777778) internal successors, (43), 7 states have internal predecessors, (43), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 53 [2023-12-19 01:46:31,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 01:46:31,964 INFO L225 Difference]: With dead ends: 1075 [2023-12-19 01:46:31,964 INFO L226 Difference]: Without dead ends: 1060 [2023-12-19 01:46:31,965 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2023-12-19 01:46:31,965 INFO L413 NwaCegarLoop]: 754 mSDtfsCounter, 189 mSDsluCounter, 5138 mSDsCounter, 0 mSdLazyCounter, 2171 mSolverCounterSat, 209 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 191 SdHoareTripleChecker+Valid, 5892 SdHoareTripleChecker+Invalid, 2380 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 209 IncrementalHoareTripleChecker+Valid, 2171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2023-12-19 01:46:31,966 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [191 Valid, 5892 Invalid, 2380 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [209 Valid, 2171 Invalid, 0 Unknown, 0 Unchecked, 6.6s Time] [2023-12-19 01:46:31,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1060 states. [2023-12-19 01:46:32,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1060 to 1035. [2023-12-19 01:46:32,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1035 states, 816 states have (on average 1.4754901960784315) internal successors, (1204), 823 states have internal predecessors, (1204), 155 states have call successors, (155), 58 states have call predecessors, (155), 63 states have return successors, (211), 153 states have call predecessors, (211), 149 states have call successors, (211) [2023-12-19 01:46:32,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1035 states to 1035 states and 1570 transitions. [2023-12-19 01:46:32,022 INFO L78 Accepts]: Start accepts. Automaton has 1035 states and 1570 transitions. Word has length 53 [2023-12-19 01:46:32,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 01:46:32,022 INFO L495 AbstractCegarLoop]: Abstraction has 1035 states and 1570 transitions. [2023-12-19 01:46:32,022 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 4.777777777777778) internal successors, (43), 7 states have internal predecessors, (43), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-12-19 01:46:32,023 INFO L276 IsEmpty]: Start isEmpty. Operand 1035 states and 1570 transitions. [2023-12-19 01:46:32,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2023-12-19 01:46:32,024 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 01:46:32,024 INFO L195 NwaCegarLoop]: trace histogram [4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 01:46:32,024 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-12-19 01:46:32,024 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 01:46:32,024 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 01:46:32,024 INFO L85 PathProgramCache]: Analyzing trace with hash -1604969137, now seen corresponding path program 1 times [2023-12-19 01:46:32,024 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 01:46:32,024 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1867155597] [2023-12-19 01:46:32,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 01:46:32,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 01:46:32,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:46:32,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-12-19 01:46:32,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:46:32,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-19 01:46:32,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:46:32,345 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-12-19 01:46:32,346 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 01:46:32,346 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1867155597] [2023-12-19 01:46:32,346 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1867155597] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 01:46:32,346 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 01:46:32,346 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-12-19 01:46:32,346 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1329773567] [2023-12-19 01:46:32,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 01:46:32,346 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-19 01:46:32,347 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 01:46:32,347 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-19 01:46:32,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2023-12-19 01:46:32,347 INFO L87 Difference]: Start difference. First operand 1035 states and 1570 transitions. Second operand has 11 states, 9 states have (on average 4.777777777777778) internal successors, (43), 7 states have internal predecessors, (43), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-12-19 01:46:40,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 01:46:40,031 INFO L93 Difference]: Finished difference Result 1073 states and 1629 transitions. [2023-12-19 01:46:40,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-19 01:46:40,042 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 4.777777777777778) internal successors, (43), 7 states have internal predecessors, (43), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 53 [2023-12-19 01:46:40,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 01:46:40,045 INFO L225 Difference]: With dead ends: 1073 [2023-12-19 01:46:40,045 INFO L226 Difference]: Without dead ends: 1058 [2023-12-19 01:46:40,046 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2023-12-19 01:46:40,046 INFO L413 NwaCegarLoop]: 747 mSDtfsCounter, 199 mSDsluCounter, 5094 mSDsCounter, 0 mSdLazyCounter, 2149 mSolverCounterSat, 207 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 201 SdHoareTripleChecker+Valid, 5841 SdHoareTripleChecker+Invalid, 2356 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 207 IncrementalHoareTripleChecker+Valid, 2149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.6s IncrementalHoareTripleChecker+Time [2023-12-19 01:46:40,046 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [201 Valid, 5841 Invalid, 2356 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [207 Valid, 2149 Invalid, 0 Unknown, 0 Unchecked, 7.6s Time] [2023-12-19 01:46:40,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1058 states. [2023-12-19 01:46:40,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1058 to 1033. [2023-12-19 01:46:40,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1033 states, 815 states have (on average 1.474846625766871) internal successors, (1202), 822 states have internal predecessors, (1202), 154 states have call successors, (154), 58 states have call predecessors, (154), 63 states have return successors, (210), 152 states have call predecessors, (210), 148 states have call successors, (210) [2023-12-19 01:46:40,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1033 states to 1033 states and 1566 transitions. [2023-12-19 01:46:40,143 INFO L78 Accepts]: Start accepts. Automaton has 1033 states and 1566 transitions. Word has length 53 [2023-12-19 01:46:40,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 01:46:40,143 INFO L495 AbstractCegarLoop]: Abstraction has 1033 states and 1566 transitions. [2023-12-19 01:46:40,143 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 4.777777777777778) internal successors, (43), 7 states have internal predecessors, (43), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-12-19 01:46:40,143 INFO L276 IsEmpty]: Start isEmpty. Operand 1033 states and 1566 transitions. [2023-12-19 01:46:40,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2023-12-19 01:46:40,146 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 01:46:40,146 INFO L195 NwaCegarLoop]: trace histogram [4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 01:46:40,146 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2023-12-19 01:46:40,147 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 01:46:40,147 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 01:46:40,147 INFO L85 PathProgramCache]: Analyzing trace with hash -2010666299, now seen corresponding path program 1 times [2023-12-19 01:46:40,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 01:46:40,147 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [245824556] [2023-12-19 01:46:40,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 01:46:40,147 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 01:46:40,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:46:40,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-12-19 01:46:40,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:46:40,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-19 01:46:40,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:46:40,432 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-12-19 01:46:40,432 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 01:46:40,432 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [245824556] [2023-12-19 01:46:40,432 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [245824556] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 01:46:40,432 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 01:46:40,432 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-12-19 01:46:40,432 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1005989072] [2023-12-19 01:46:40,433 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 01:46:40,433 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-19 01:46:40,433 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 01:46:40,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-19 01:46:40,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2023-12-19 01:46:40,433 INFO L87 Difference]: Start difference. First operand 1033 states and 1566 transitions. Second operand has 11 states, 9 states have (on average 4.666666666666667) internal successors, (42), 7 states have internal predecessors, (42), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-12-19 01:46:43,996 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.93s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-19 01:46:50,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 01:46:50,882 INFO L93 Difference]: Finished difference Result 1070 states and 1624 transitions. [2023-12-19 01:46:50,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-19 01:46:50,883 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 4.666666666666667) internal successors, (42), 7 states have internal predecessors, (42), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 52 [2023-12-19 01:46:50,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 01:46:50,885 INFO L225 Difference]: With dead ends: 1070 [2023-12-19 01:46:50,885 INFO L226 Difference]: Without dead ends: 1055 [2023-12-19 01:46:50,886 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2023-12-19 01:46:50,886 INFO L413 NwaCegarLoop]: 743 mSDtfsCounter, 106 mSDsluCounter, 5488 mSDsCounter, 0 mSdLazyCounter, 2454 mSolverCounterSat, 103 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 6231 SdHoareTripleChecker+Invalid, 2557 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 103 IncrementalHoareTripleChecker+Valid, 2454 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.3s IncrementalHoareTripleChecker+Time [2023-12-19 01:46:50,886 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [108 Valid, 6231 Invalid, 2557 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [103 Valid, 2454 Invalid, 0 Unknown, 0 Unchecked, 10.3s Time] [2023-12-19 01:46:50,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1055 states. [2023-12-19 01:46:50,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1055 to 1030. [2023-12-19 01:46:50,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1030 states, 813 states have (on average 1.4747847478474785) internal successors, (1199), 820 states have internal predecessors, (1199), 153 states have call successors, (153), 58 states have call predecessors, (153), 63 states have return successors, (209), 151 states have call predecessors, (209), 147 states have call successors, (209) [2023-12-19 01:46:50,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1030 states to 1030 states and 1561 transitions. [2023-12-19 01:46:50,945 INFO L78 Accepts]: Start accepts. Automaton has 1030 states and 1561 transitions. Word has length 52 [2023-12-19 01:46:50,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 01:46:50,946 INFO L495 AbstractCegarLoop]: Abstraction has 1030 states and 1561 transitions. [2023-12-19 01:46:50,946 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 4.666666666666667) internal successors, (42), 7 states have internal predecessors, (42), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-12-19 01:46:50,946 INFO L276 IsEmpty]: Start isEmpty. Operand 1030 states and 1561 transitions. [2023-12-19 01:46:50,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2023-12-19 01:46:50,947 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 01:46:50,947 INFO L195 NwaCegarLoop]: trace histogram [4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 01:46:50,947 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2023-12-19 01:46:50,947 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 01:46:50,947 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 01:46:50,947 INFO L85 PathProgramCache]: Analyzing trace with hash -517376381, now seen corresponding path program 1 times [2023-12-19 01:46:50,948 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 01:46:50,948 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [109166823] [2023-12-19 01:46:50,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 01:46:50,948 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 01:46:50,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:46:51,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-19 01:46:51,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:46:51,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-19 01:46:51,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:46:51,105 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-19 01:46:51,105 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 01:46:51,105 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [109166823] [2023-12-19 01:46:51,105 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [109166823] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-19 01:46:51,105 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2050331394] [2023-12-19 01:46:51,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 01:46:51,105 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 01:46:51,105 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 01:46:51,106 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 01:46:51,129 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-19 01:46:51,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:46:51,600 INFO L262 TraceCheckSpWp]: Trace formula consists of 770 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-19 01:46:51,603 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 01:46:51,615 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-19 01:46:51,615 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-19 01:46:51,648 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-19 01:46:51,648 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2050331394] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-19 01:46:51,648 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-19 01:46:51,648 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 4, 5] total 11 [2023-12-19 01:46:51,649 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1180134962] [2023-12-19 01:46:51,649 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-19 01:46:51,649 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-19 01:46:51,649 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 01:46:51,649 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-19 01:46:51,649 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2023-12-19 01:46:51,650 INFO L87 Difference]: Start difference. First operand 1030 states and 1561 transitions. Second operand has 11 states, 11 states have (on average 5.181818181818182) internal successors, (57), 9 states have internal predecessors, (57), 1 states have call successors, (7), 4 states have call predecessors, (7), 2 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-12-19 01:46:55,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 01:46:55,119 INFO L93 Difference]: Finished difference Result 2068 states and 3142 transitions. [2023-12-19 01:46:55,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-19 01:46:55,120 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.181818181818182) internal successors, (57), 9 states have internal predecessors, (57), 1 states have call successors, (7), 4 states have call predecessors, (7), 2 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 52 [2023-12-19 01:46:55,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 01:46:55,122 INFO L225 Difference]: With dead ends: 2068 [2023-12-19 01:46:55,122 INFO L226 Difference]: Without dead ends: 1042 [2023-12-19 01:46:55,124 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=126, Unknown=0, NotChecked=0, Total=182 [2023-12-19 01:46:55,125 INFO L413 NwaCegarLoop]: 701 mSDtfsCounter, 259 mSDsluCounter, 2952 mSDsCounter, 0 mSdLazyCounter, 1289 mSolverCounterSat, 244 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 261 SdHoareTripleChecker+Valid, 3653 SdHoareTripleChecker+Invalid, 1533 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 244 IncrementalHoareTripleChecker+Valid, 1289 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2023-12-19 01:46:55,125 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [261 Valid, 3653 Invalid, 1533 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [244 Valid, 1289 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2023-12-19 01:46:55,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1042 states. [2023-12-19 01:46:55,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1042 to 1037. [2023-12-19 01:46:55,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1037 states, 820 states have (on average 1.4707317073170731) internal successors, (1206), 827 states have internal predecessors, (1206), 153 states have call successors, (153), 58 states have call predecessors, (153), 63 states have return successors, (209), 151 states have call predecessors, (209), 147 states have call successors, (209) [2023-12-19 01:46:55,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1037 states to 1037 states and 1568 transitions. [2023-12-19 01:46:55,184 INFO L78 Accepts]: Start accepts. Automaton has 1037 states and 1568 transitions. Word has length 52 [2023-12-19 01:46:55,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 01:46:55,184 INFO L495 AbstractCegarLoop]: Abstraction has 1037 states and 1568 transitions. [2023-12-19 01:46:55,185 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.181818181818182) internal successors, (57), 9 states have internal predecessors, (57), 1 states have call successors, (7), 4 states have call predecessors, (7), 2 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-12-19 01:46:55,185 INFO L276 IsEmpty]: Start isEmpty. Operand 1037 states and 1568 transitions. [2023-12-19 01:46:55,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2023-12-19 01:46:55,186 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 01:46:55,186 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 01:46:55,195 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-12-19 01:46:55,395 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 01:46:55,396 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 01:46:55,396 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 01:46:55,396 INFO L85 PathProgramCache]: Analyzing trace with hash 1154015761, now seen corresponding path program 2 times [2023-12-19 01:46:55,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 01:46:55,396 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [196705503] [2023-12-19 01:46:55,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 01:46:55,397 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 01:46:55,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:46:55,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-19 01:46:55,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:46:55,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-12-19 01:46:55,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:46:55,694 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-12-19 01:46:55,694 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 01:46:55,694 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [196705503] [2023-12-19 01:46:55,694 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [196705503] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-19 01:46:55,695 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1071116679] [2023-12-19 01:46:55,695 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-19 01:46:55,695 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 01:46:55,695 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 01:46:55,714 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 01:46:55,760 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-19 01:46:56,428 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-12-19 01:46:56,428 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-19 01:46:56,434 INFO L262 TraceCheckSpWp]: Trace formula consists of 917 conjuncts, 17 conjunts are in the unsatisfiable core [2023-12-19 01:46:56,437 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 01:46:56,447 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-12-19 01:46:56,447 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-19 01:46:56,512 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2023-12-19 01:46:56,512 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1071116679] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-19 01:46:56,512 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-19 01:46:56,512 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 6, 6] total 15 [2023-12-19 01:46:56,513 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [363785139] [2023-12-19 01:46:56,513 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-19 01:46:56,513 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-12-19 01:46:56,513 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 01:46:56,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-12-19 01:46:56,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2023-12-19 01:46:56,514 INFO L87 Difference]: Start difference. First operand 1037 states and 1568 transitions. Second operand has 15 states, 15 states have (on average 4.6) internal successors, (69), 13 states have internal predecessors, (69), 1 states have call successors, (7), 4 states have call predecessors, (7), 2 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-12-19 01:47:02,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 01:47:02,443 INFO L93 Difference]: Finished difference Result 2089 states and 3174 transitions. [2023-12-19 01:47:02,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-12-19 01:47:02,444 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 4.6) internal successors, (69), 13 states have internal predecessors, (69), 1 states have call successors, (7), 4 states have call predecessors, (7), 2 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 59 [2023-12-19 01:47:02,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 01:47:02,446 INFO L225 Difference]: With dead ends: 2089 [2023-12-19 01:47:02,446 INFO L226 Difference]: Without dead ends: 1060 [2023-12-19 01:47:02,448 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=104, Invalid=238, Unknown=0, NotChecked=0, Total=342 [2023-12-19 01:47:02,448 INFO L413 NwaCegarLoop]: 702 mSDtfsCounter, 256 mSDsluCounter, 4853 mSDsCounter, 0 mSdLazyCounter, 2155 mSolverCounterSat, 254 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 258 SdHoareTripleChecker+Valid, 5555 SdHoareTripleChecker+Invalid, 2409 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 254 IncrementalHoareTripleChecker+Valid, 2155 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2023-12-19 01:47:02,448 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [258 Valid, 5555 Invalid, 2409 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [254 Valid, 2155 Invalid, 0 Unknown, 0 Unchecked, 5.7s Time] [2023-12-19 01:47:02,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1060 states. [2023-12-19 01:47:02,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1060 to 1055. [2023-12-19 01:47:02,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1055 states, 838 states have (on average 1.4606205250596658) internal successors, (1224), 845 states have internal predecessors, (1224), 153 states have call successors, (153), 58 states have call predecessors, (153), 63 states have return successors, (209), 151 states have call predecessors, (209), 147 states have call successors, (209) [2023-12-19 01:47:02,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1055 states to 1055 states and 1586 transitions. [2023-12-19 01:47:02,505 INFO L78 Accepts]: Start accepts. Automaton has 1055 states and 1586 transitions. Word has length 59 [2023-12-19 01:47:02,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 01:47:02,505 INFO L495 AbstractCegarLoop]: Abstraction has 1055 states and 1586 transitions. [2023-12-19 01:47:02,505 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 4.6) internal successors, (69), 13 states have internal predecessors, (69), 1 states have call successors, (7), 4 states have call predecessors, (7), 2 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-12-19 01:47:02,505 INFO L276 IsEmpty]: Start isEmpty. Operand 1055 states and 1586 transitions. [2023-12-19 01:47:02,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2023-12-19 01:47:02,506 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 01:47:02,506 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 01:47:02,526 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-12-19 01:47:02,716 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2023-12-19 01:47:02,716 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 01:47:02,716 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 01:47:02,716 INFO L85 PathProgramCache]: Analyzing trace with hash 248496882, now seen corresponding path program 3 times [2023-12-19 01:47:02,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 01:47:02,717 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [71993735] [2023-12-19 01:47:02,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 01:47:02,717 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 01:47:02,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:47:03,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-12-19 01:47:03,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:47:03,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-12-19 01:47:03,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:47:03,198 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 133 trivial. 0 not checked. [2023-12-19 01:47:03,198 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 01:47:03,198 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [71993735] [2023-12-19 01:47:03,198 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [71993735] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-19 01:47:03,198 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1772222932] [2023-12-19 01:47:03,198 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-12-19 01:47:03,199 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 01:47:03,199 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 01:47:03,214 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 01:47:03,238 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-12-19 01:47:03,871 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-12-19 01:47:03,871 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-19 01:47:03,875 INFO L262 TraceCheckSpWp]: Trace formula consists of 728 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-19 01:47:03,878 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 01:47:03,926 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 198 trivial. 0 not checked. [2023-12-19 01:47:03,927 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-19 01:47:03,997 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 198 trivial. 0 not checked. [2023-12-19 01:47:03,998 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1772222932] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-19 01:47:03,998 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-19 01:47:03,998 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 5, 5] total 22 [2023-12-19 01:47:03,998 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1707404969] [2023-12-19 01:47:03,998 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-19 01:47:03,998 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2023-12-19 01:47:03,998 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 01:47:03,999 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2023-12-19 01:47:03,999 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=401, Unknown=0, NotChecked=0, Total=462 [2023-12-19 01:47:03,999 INFO L87 Difference]: Start difference. First operand 1055 states and 1586 transitions. Second operand has 22 states, 20 states have (on average 3.9) internal successors, (78), 20 states have internal predecessors, (78), 2 states have call successors, (6), 4 states have call predecessors, (6), 4 states have return successors, (5), 1 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-19 01:47:14,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 01:47:14,938 INFO L93 Difference]: Finished difference Result 2125 states and 3211 transitions. [2023-12-19 01:47:14,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2023-12-19 01:47:14,938 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 20 states have (on average 3.9) internal successors, (78), 20 states have internal predecessors, (78), 2 states have call successors, (6), 4 states have call predecessors, (6), 4 states have return successors, (5), 1 states have call predecessors, (5), 2 states have call successors, (5) Word has length 77 [2023-12-19 01:47:14,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 01:47:14,940 INFO L225 Difference]: With dead ends: 2125 [2023-12-19 01:47:14,940 INFO L226 Difference]: Without dead ends: 1077 [2023-12-19 01:47:14,942 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 180 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=150, Invalid=842, Unknown=0, NotChecked=0, Total=992 [2023-12-19 01:47:14,943 INFO L413 NwaCegarLoop]: 700 mSDtfsCounter, 268 mSDsluCounter, 9924 mSDsCounter, 0 mSdLazyCounter, 4644 mSolverCounterSat, 249 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 270 SdHoareTripleChecker+Valid, 10624 SdHoareTripleChecker+Invalid, 4893 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 249 IncrementalHoareTripleChecker+Valid, 4644 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.6s IncrementalHoareTripleChecker+Time [2023-12-19 01:47:14,944 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [270 Valid, 10624 Invalid, 4893 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [249 Valid, 4644 Invalid, 0 Unknown, 0 Unchecked, 10.6s Time] [2023-12-19 01:47:14,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1077 states. [2023-12-19 01:47:15,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1077 to 1072. [2023-12-19 01:47:15,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1072 states, 854 states have (on average 1.455503512880562) internal successors, (1243), 861 states have internal predecessors, (1243), 153 states have call successors, (153), 59 states have call predecessors, (153), 64 states have return successors, (209), 151 states have call predecessors, (209), 147 states have call successors, (209) [2023-12-19 01:47:15,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1072 states to 1072 states and 1605 transitions. [2023-12-19 01:47:15,010 INFO L78 Accepts]: Start accepts. Automaton has 1072 states and 1605 transitions. Word has length 77 [2023-12-19 01:47:15,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 01:47:15,010 INFO L495 AbstractCegarLoop]: Abstraction has 1072 states and 1605 transitions. [2023-12-19 01:47:15,010 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 20 states have (on average 3.9) internal successors, (78), 20 states have internal predecessors, (78), 2 states have call successors, (6), 4 states have call predecessors, (6), 4 states have return successors, (5), 1 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-19 01:47:15,010 INFO L276 IsEmpty]: Start isEmpty. Operand 1072 states and 1605 transitions. [2023-12-19 01:47:15,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2023-12-19 01:47:15,016 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 01:47:15,016 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 01:47:15,037 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-12-19 01:47:15,226 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2023-12-19 01:47:15,226 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 01:47:15,226 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 01:47:15,226 INFO L85 PathProgramCache]: Analyzing trace with hash -1900778022, now seen corresponding path program 1 times [2023-12-19 01:47:15,226 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 01:47:15,226 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1964652782] [2023-12-19 01:47:15,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 01:47:15,227 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 01:47:15,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:47:15,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-12-19 01:47:15,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:47:15,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-12-19 01:47:15,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:47:15,358 INFO L134 CoverageAnalysis]: Checked inductivity of 234 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 234 trivial. 0 not checked. [2023-12-19 01:47:15,358 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 01:47:15,358 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1964652782] [2023-12-19 01:47:15,358 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1964652782] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 01:47:15,358 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 01:47:15,359 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-19 01:47:15,359 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [5933243] [2023-12-19 01:47:15,359 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 01:47:15,359 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-19 01:47:15,359 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 01:47:15,359 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-19 01:47:15,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-19 01:47:15,360 INFO L87 Difference]: Start difference. First operand 1072 states and 1605 transitions. Second operand has 5 states, 5 states have (on average 8.8) internal successors, (44), 3 states have internal predecessors, (44), 3 states have call successors, (4), 4 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-12-19 01:47:19,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 01:47:19,068 INFO L93 Difference]: Finished difference Result 1176 states and 1750 transitions. [2023-12-19 01:47:19,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-19 01:47:19,068 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 3 states have internal predecessors, (44), 3 states have call successors, (4), 4 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 83 [2023-12-19 01:47:19,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 01:47:19,071 INFO L225 Difference]: With dead ends: 1176 [2023-12-19 01:47:19,071 INFO L226 Difference]: Without dead ends: 1114 [2023-12-19 01:47:19,071 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-12-19 01:47:19,072 INFO L413 NwaCegarLoop]: 742 mSDtfsCounter, 890 mSDsluCounter, 1274 mSDsCounter, 0 mSdLazyCounter, 658 mSolverCounterSat, 247 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 968 SdHoareTripleChecker+Valid, 2016 SdHoareTripleChecker+Invalid, 905 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 247 IncrementalHoareTripleChecker+Valid, 658 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2023-12-19 01:47:19,072 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [968 Valid, 2016 Invalid, 905 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [247 Valid, 658 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2023-12-19 01:47:19,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1114 states. [2023-12-19 01:47:19,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1114 to 1063. [2023-12-19 01:47:19,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1063 states, 849 states have (on average 1.4558303886925794) internal successors, (1236), 856 states have internal predecessors, (1236), 151 states have call successors, (151), 57 states have call predecessors, (151), 62 states have return successors, (207), 149 states have call predecessors, (207), 145 states have call successors, (207) [2023-12-19 01:47:19,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1063 states to 1063 states and 1594 transitions. [2023-12-19 01:47:19,186 INFO L78 Accepts]: Start accepts. Automaton has 1063 states and 1594 transitions. Word has length 83 [2023-12-19 01:47:19,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 01:47:19,186 INFO L495 AbstractCegarLoop]: Abstraction has 1063 states and 1594 transitions. [2023-12-19 01:47:19,186 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 3 states have internal predecessors, (44), 3 states have call successors, (4), 4 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-12-19 01:47:19,186 INFO L276 IsEmpty]: Start isEmpty. Operand 1063 states and 1594 transitions. [2023-12-19 01:47:19,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2023-12-19 01:47:19,188 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 01:47:19,188 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 01:47:19,188 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2023-12-19 01:47:19,188 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 01:47:19,189 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 01:47:19,189 INFO L85 PathProgramCache]: Analyzing trace with hash 573445540, now seen corresponding path program 1 times [2023-12-19 01:47:19,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 01:47:19,189 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [511428854] [2023-12-19 01:47:19,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 01:47:19,189 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 01:47:19,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:47:19,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-12-19 01:47:19,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:47:19,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-19 01:47:19,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:47:19,832 INFO L134 CoverageAnalysis]: Checked inductivity of 234 backedges. 0 proven. 78 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2023-12-19 01:47:19,832 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 01:47:19,832 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [511428854] [2023-12-19 01:47:19,832 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [511428854] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-19 01:47:19,832 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1428338621] [2023-12-19 01:47:19,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 01:47:19,833 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 01:47:19,833 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 01:47:19,849 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 01:47:19,869 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-12-19 01:47:20,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:47:20,513 INFO L262 TraceCheckSpWp]: Trace formula consists of 1404 conjuncts, 23 conjunts are in the unsatisfiable core [2023-12-19 01:47:20,515 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 01:47:20,703 INFO L134 CoverageAnalysis]: Checked inductivity of 234 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 234 trivial. 0 not checked. [2023-12-19 01:47:20,703 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 01:47:20,703 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1428338621] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 01:47:20,703 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-19 01:47:20,703 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [17] total 25 [2023-12-19 01:47:20,703 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [932020203] [2023-12-19 01:47:20,703 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 01:47:20,704 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-19 01:47:20,704 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 01:47:20,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-19 01:47:20,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=540, Unknown=0, NotChecked=0, Total=600 [2023-12-19 01:47:20,704 INFO L87 Difference]: Start difference. First operand 1063 states and 1594 transitions. Second operand has 10 states, 8 states have (on average 5.625) internal successors, (45), 8 states have internal predecessors, (45), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-12-19 01:47:21,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 01:47:21,911 INFO L93 Difference]: Finished difference Result 1077 states and 1608 transitions. [2023-12-19 01:47:21,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-19 01:47:21,911 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 5.625) internal successors, (45), 8 states have internal predecessors, (45), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 83 [2023-12-19 01:47:21,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 01:47:21,914 INFO L225 Difference]: With dead ends: 1077 [2023-12-19 01:47:21,914 INFO L226 Difference]: Without dead ends: 1061 [2023-12-19 01:47:21,914 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=72, Invalid=684, Unknown=0, NotChecked=0, Total=756 [2023-12-19 01:47:21,915 INFO L413 NwaCegarLoop]: 837 mSDtfsCounter, 13 mSDsluCounter, 6560 mSDsCounter, 0 mSdLazyCounter, 592 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 7397 SdHoareTripleChecker+Invalid, 595 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 592 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-12-19 01:47:21,915 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 7397 Invalid, 595 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 592 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-12-19 01:47:21,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1061 states. [2023-12-19 01:47:21,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1061 to 1061. [2023-12-19 01:47:21,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1061 states, 848 states have (on average 1.455188679245283) internal successors, (1234), 855 states have internal predecessors, (1234), 150 states have call successors, (150), 57 states have call predecessors, (150), 62 states have return successors, (206), 148 states have call predecessors, (206), 144 states have call successors, (206) [2023-12-19 01:47:21,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1061 states to 1061 states and 1590 transitions. [2023-12-19 01:47:21,976 INFO L78 Accepts]: Start accepts. Automaton has 1061 states and 1590 transitions. Word has length 83 [2023-12-19 01:47:21,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 01:47:21,976 INFO L495 AbstractCegarLoop]: Abstraction has 1061 states and 1590 transitions. [2023-12-19 01:47:21,977 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 8 states have (on average 5.625) internal successors, (45), 8 states have internal predecessors, (45), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-12-19 01:47:21,977 INFO L276 IsEmpty]: Start isEmpty. Operand 1061 states and 1590 transitions. [2023-12-19 01:47:21,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2023-12-19 01:47:21,978 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 01:47:21,978 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 01:47:21,987 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2023-12-19 01:47:22,187 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 01:47:22,187 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 01:47:22,188 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 01:47:22,188 INFO L85 PathProgramCache]: Analyzing trace with hash -304143526, now seen corresponding path program 1 times [2023-12-19 01:47:22,188 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 01:47:22,188 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1570917192] [2023-12-19 01:47:22,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 01:47:22,188 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 01:47:22,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:47:22,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-12-19 01:47:22,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:47:22,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-19 01:47:22,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:47:22,677 INFO L134 CoverageAnalysis]: Checked inductivity of 234 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 234 trivial. 0 not checked. [2023-12-19 01:47:22,677 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 01:47:22,677 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1570917192] [2023-12-19 01:47:22,677 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1570917192] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 01:47:22,677 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 01:47:22,677 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-12-19 01:47:22,677 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1776226303] [2023-12-19 01:47:22,678 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 01:47:22,678 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-19 01:47:22,678 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 01:47:22,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-19 01:47:22,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2023-12-19 01:47:22,678 INFO L87 Difference]: Start difference. First operand 1061 states and 1590 transitions. Second operand has 12 states, 10 states have (on average 4.4) internal successors, (44), 8 states have internal predecessors, (44), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-12-19 01:47:31,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 01:47:31,114 INFO L93 Difference]: Finished difference Result 1099 states and 1649 transitions. [2023-12-19 01:47:31,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-19 01:47:31,115 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 4.4) internal successors, (44), 8 states have internal predecessors, (44), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 82 [2023-12-19 01:47:31,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 01:47:31,117 INFO L225 Difference]: With dead ends: 1099 [2023-12-19 01:47:31,117 INFO L226 Difference]: Without dead ends: 1083 [2023-12-19 01:47:31,118 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2023-12-19 01:47:31,118 INFO L413 NwaCegarLoop]: 735 mSDtfsCounter, 106 mSDsluCounter, 6087 mSDsCounter, 0 mSdLazyCounter, 2685 mSolverCounterSat, 101 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 6822 SdHoareTripleChecker+Invalid, 2786 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 101 IncrementalHoareTripleChecker+Valid, 2685 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.3s IncrementalHoareTripleChecker+Time [2023-12-19 01:47:31,118 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [108 Valid, 6822 Invalid, 2786 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [101 Valid, 2685 Invalid, 0 Unknown, 0 Unchecked, 8.3s Time] [2023-12-19 01:47:31,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1083 states. [2023-12-19 01:47:31,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1083 to 1058. [2023-12-19 01:47:31,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1058 states, 846 states have (on average 1.455082742316785) internal successors, (1231), 853 states have internal predecessors, (1231), 149 states have call successors, (149), 57 states have call predecessors, (149), 62 states have return successors, (205), 147 states have call predecessors, (205), 143 states have call successors, (205) [2023-12-19 01:47:31,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1058 states to 1058 states and 1585 transitions. [2023-12-19 01:47:31,181 INFO L78 Accepts]: Start accepts. Automaton has 1058 states and 1585 transitions. Word has length 82 [2023-12-19 01:47:31,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 01:47:31,181 INFO L495 AbstractCegarLoop]: Abstraction has 1058 states and 1585 transitions. [2023-12-19 01:47:31,181 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 4.4) internal successors, (44), 8 states have internal predecessors, (44), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-12-19 01:47:31,181 INFO L276 IsEmpty]: Start isEmpty. Operand 1058 states and 1585 transitions. [2023-12-19 01:47:31,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2023-12-19 01:47:31,183 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 01:47:31,184 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 01:47:31,184 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2023-12-19 01:47:31,184 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 01:47:31,184 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 01:47:31,184 INFO L85 PathProgramCache]: Analyzing trace with hash -2108428258, now seen corresponding path program 4 times [2023-12-19 01:47:31,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 01:47:31,184 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1032853947] [2023-12-19 01:47:31,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 01:47:31,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 01:47:31,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:47:31,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-12-19 01:47:31,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:47:31,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-12-19 01:47:31,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:47:31,759 INFO L134 CoverageAnalysis]: Checked inductivity of 244 backedges. 0 proven. 78 refuted. 0 times theorem prover too weak. 166 trivial. 0 not checked. [2023-12-19 01:47:31,759 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 01:47:31,759 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1032853947] [2023-12-19 01:47:31,759 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1032853947] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-19 01:47:31,759 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1870341621] [2023-12-19 01:47:31,759 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-12-19 01:47:31,759 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 01:47:31,760 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 01:47:31,776 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 01:47:31,792 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-12-19 01:47:32,488 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-12-19 01:47:32,488 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-19 01:47:32,495 INFO L262 TraceCheckSpWp]: Trace formula consists of 1403 conjuncts, 51 conjunts are in the unsatisfiable core [2023-12-19 01:47:32,498 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 01:47:32,538 INFO L134 CoverageAnalysis]: Checked inductivity of 244 backedges. 0 proven. 128 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2023-12-19 01:47:32,539 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-19 01:47:32,751 INFO L134 CoverageAnalysis]: Checked inductivity of 244 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 234 trivial. 0 not checked. [2023-12-19 01:47:32,751 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1870341621] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-19 01:47:32,751 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-19 01:47:32,752 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 15, 8] total 24 [2023-12-19 01:47:32,754 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1843505908] [2023-12-19 01:47:32,755 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-19 01:47:32,756 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-12-19 01:47:32,756 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 01:47:32,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-12-19 01:47:32,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=489, Unknown=0, NotChecked=0, Total=552 [2023-12-19 01:47:32,757 INFO L87 Difference]: Start difference. First operand 1058 states and 1585 transitions. Second operand has 24 states, 23 states have (on average 4.217391304347826) internal successors, (97), 22 states have internal predecessors, (97), 2 states have call successors, (7), 4 states have call predecessors, (7), 3 states have return successors, (5), 1 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-19 01:47:43,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 01:47:43,313 INFO L93 Difference]: Finished difference Result 2114 states and 3180 transitions. [2023-12-19 01:47:43,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2023-12-19 01:47:43,314 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 4.217391304347826) internal successors, (97), 22 states have internal predecessors, (97), 2 states have call successors, (7), 4 states have call predecessors, (7), 3 states have return successors, (5), 1 states have call predecessors, (5), 2 states have call successors, (5) Word has length 83 [2023-12-19 01:47:43,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 01:47:43,316 INFO L225 Difference]: With dead ends: 2114 [2023-12-19 01:47:43,316 INFO L226 Difference]: Without dead ends: 1068 [2023-12-19 01:47:43,318 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 192 GetRequests, 162 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=139, Invalid=853, Unknown=0, NotChecked=0, Total=992 [2023-12-19 01:47:43,319 INFO L413 NwaCegarLoop]: 692 mSDtfsCounter, 264 mSDsluCounter, 8571 mSDsCounter, 0 mSdLazyCounter, 4280 mSolverCounterSat, 240 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 266 SdHoareTripleChecker+Valid, 9263 SdHoareTripleChecker+Invalid, 4520 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 240 IncrementalHoareTripleChecker+Valid, 4280 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.2s IncrementalHoareTripleChecker+Time [2023-12-19 01:47:43,319 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [266 Valid, 9263 Invalid, 4520 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [240 Valid, 4280 Invalid, 0 Unknown, 0 Unchecked, 10.2s Time] [2023-12-19 01:47:43,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1068 states. [2023-12-19 01:47:43,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1068 to 1063. [2023-12-19 01:47:43,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1063 states, 851 states have (on average 1.4524089306698003) internal successors, (1236), 858 states have internal predecessors, (1236), 149 states have call successors, (149), 57 states have call predecessors, (149), 62 states have return successors, (205), 147 states have call predecessors, (205), 143 states have call successors, (205) [2023-12-19 01:47:43,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1063 states to 1063 states and 1590 transitions. [2023-12-19 01:47:43,415 INFO L78 Accepts]: Start accepts. Automaton has 1063 states and 1590 transitions. Word has length 83 [2023-12-19 01:47:43,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 01:47:43,415 INFO L495 AbstractCegarLoop]: Abstraction has 1063 states and 1590 transitions. [2023-12-19 01:47:43,415 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 4.217391304347826) internal successors, (97), 22 states have internal predecessors, (97), 2 states have call successors, (7), 4 states have call predecessors, (7), 3 states have return successors, (5), 1 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-19 01:47:43,416 INFO L276 IsEmpty]: Start isEmpty. Operand 1063 states and 1590 transitions. [2023-12-19 01:47:43,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2023-12-19 01:47:43,417 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 01:47:43,417 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 01:47:43,428 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-12-19 01:47:43,627 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 01:47:43,627 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 01:47:43,628 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 01:47:43,628 INFO L85 PathProgramCache]: Analyzing trace with hash -197339182, now seen corresponding path program 5 times [2023-12-19 01:47:43,628 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 01:47:43,628 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [12685033] [2023-12-19 01:47:43,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 01:47:43,628 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 01:47:43,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:47:44,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-12-19 01:47:44,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:47:44,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-12-19 01:47:44,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:47:44,164 INFO L134 CoverageAnalysis]: Checked inductivity of 288 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 197 trivial. 0 not checked. [2023-12-19 01:47:44,164 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 01:47:44,164 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [12685033] [2023-12-19 01:47:44,164 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [12685033] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-19 01:47:44,164 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [458896165] [2023-12-19 01:47:44,164 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-12-19 01:47:44,165 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 01:47:44,165 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 01:47:44,166 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 01:47:44,182 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process Received shutdown request... [2023-12-19 02:00:01,909 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-19 02:00:01,919 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-19 02:00:02,939 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 [2023-12-19 02:00:03,109 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forcibly destroying the process [2023-12-19 02:00:03,131 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 137 [2023-12-19 02:00:03,132 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-19 02:00:03,132 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-12-19 02:00:03,132 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2023-12-19 02:00:03,132 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1790670388] [2023-12-19 02:00:03,132 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-12-19 02:00:03,133 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-12-19 02:00:03,133 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 02:00:03,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-12-19 02:00:03,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=260, Unknown=0, NotChecked=0, Total=306 [2023-12-19 02:00:03,134 INFO L87 Difference]: Start difference. First operand 1063 states and 1590 transitions. Second operand has 18 states, 18 states have (on average 3.0) internal successors, (54), 16 states have internal predecessors, (54), 1 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-12-19 02:00:03,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-19 02:00:03,135 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=260, Unknown=0, NotChecked=0, Total=306 [2023-12-19 02:00:03,135 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-19 02:00:03,136 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-19 02:00:03,136 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-19 02:00:03,137 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2023-12-19 02:00:03,138 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was constructing difference of abstraction (1063states) and FLOYD_HOARE automaton (currently 2 states, 18 states before enhancement),while ReachableStatesComputation was computing reachable states (1 states constructed, input type IntersectNwa). [2023-12-19 02:00:03,149 INFO L445 BasicCegarLoop]: Path program histogram: [5, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 02:00:03,151 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-19 02:00:03,152 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.12 02:00:03 BoogieIcfgContainer [2023-12-19 02:00:03,152 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-19 02:00:03,153 INFO L158 Benchmark]: Toolchain (without parser) took 865768.88ms. Allocated memory was 190.8MB in the beginning and 807.4MB in the end (delta: 616.6MB). Free memory was 128.0MB in the beginning and 304.3MB in the end (delta: -176.4MB). Peak memory consumption was 441.3MB. Max. memory is 8.0GB. [2023-12-19 02:00:03,153 INFO L158 Benchmark]: CDTParser took 0.63ms. Allocated memory is still 190.8MB. Free memory is still 149.5MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-19 02:00:03,153 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1820.95ms. Allocated memory was 190.8MB in the beginning and 269.5MB in the end (delta: 78.6MB). Free memory was 127.7MB in the beginning and 173.8MB in the end (delta: -46.1MB). Peak memory consumption was 78.8MB. Max. memory is 8.0GB. [2023-12-19 02:00:03,153 INFO L158 Benchmark]: Boogie Procedure Inliner took 207.41ms. Allocated memory is still 269.5MB. Free memory was 173.8MB in the beginning and 154.0MB in the end (delta: 19.8MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. [2023-12-19 02:00:03,153 INFO L158 Benchmark]: Boogie Preprocessor took 240.27ms. Allocated memory is still 269.5MB. Free memory was 154.0MB in the beginning and 117.8MB in the end (delta: 36.2MB). Peak memory consumption was 35.7MB. Max. memory is 8.0GB. [2023-12-19 02:00:03,153 INFO L158 Benchmark]: RCFGBuilder took 4933.64ms. Allocated memory was 269.5MB in the beginning and 521.1MB in the end (delta: 251.7MB). Free memory was 117.8MB in the beginning and 386.7MB in the end (delta: -268.9MB). Peak memory consumption was 41.5MB. Max. memory is 8.0GB. [2023-12-19 02:00:03,153 INFO L158 Benchmark]: TraceAbstraction took 858558.91ms. Allocated memory was 521.1MB in the beginning and 807.4MB in the end (delta: 286.3MB). Free memory was 386.2MB in the beginning and 304.3MB in the end (delta: 81.8MB). Peak memory consumption was 368.1MB. Max. memory is 8.0GB. [2023-12-19 02:00:03,154 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.63ms. Allocated memory is still 190.8MB. Free memory is still 149.5MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 1820.95ms. Allocated memory was 190.8MB in the beginning and 269.5MB in the end (delta: 78.6MB). Free memory was 127.7MB in the beginning and 173.8MB in the end (delta: -46.1MB). Peak memory consumption was 78.8MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 207.41ms. Allocated memory is still 269.5MB. Free memory was 173.8MB in the beginning and 154.0MB in the end (delta: 19.8MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. * Boogie Preprocessor took 240.27ms. Allocated memory is still 269.5MB. Free memory was 154.0MB in the beginning and 117.8MB in the end (delta: 36.2MB). Peak memory consumption was 35.7MB. Max. memory is 8.0GB. * RCFGBuilder took 4933.64ms. Allocated memory was 269.5MB in the beginning and 521.1MB in the end (delta: 251.7MB). Free memory was 117.8MB in the beginning and 386.7MB in the end (delta: -268.9MB). Peak memory consumption was 41.5MB. Max. memory is 8.0GB. * TraceAbstraction took 858558.91ms. Allocated memory was 521.1MB in the beginning and 807.4MB in the end (delta: 286.3MB). Free memory was 386.2MB in the beginning and 304.3MB in the end (delta: 81.8MB). Peak memory consumption was 368.1MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 13]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma pack(push,8) [13] - GenericResultAtLocation [Line: 14]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma pack(pop) [14] - GenericResultAtLocation [Line: 187]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma pack(push,4) [187] - GenericResultAtLocation [Line: 193]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma pack(pop) [193] - GenericResultAtLocation [Line: 399]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma pack(push,4) [399] - GenericResultAtLocation [Line: 452]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma pack(pop) [452] - GenericResultAtLocation [Line: 471]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma pack(push,1) [471] - GenericResultAtLocation [Line: 472]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma pack(pop) [472] - GenericResultAtLocation [Line: 1153]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma pack(push,4) [1153] - GenericResultAtLocation [Line: 1326]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma pack(pop) [1326] - GenericResultAtLocation [Line: 1446]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma pack(push,8) [1446] - GenericResultAtLocation [Line: 1447]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma pack(pop) [1447] - GenericResultAtLocation [Line: 2284]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma pack(1) [2284] - GenericResultAtLocation [Line: 2285]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma pack() [2285] - GenericResultAtLocation [Line: 2626]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma pack(push,8) [2626] - GenericResultAtLocation [Line: 2627]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma pack(pop) [2627] - GenericResultAtLocation [Line: 2630]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma pack(push,4) [2630] - GenericResultAtLocation [Line: 2631]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma pack(pop) [2631] - GenericResultAtLocation [Line: 2632]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma pack(push,4) [2632] - GenericResultAtLocation [Line: 2633]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma pack(pop) [2633] - GenericResultAtLocation [Line: 2634]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma pack(push,1) [2634] - GenericResultAtLocation [Line: 2635]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma pack(pop) [2635] - GenericResultAtLocation [Line: 2642]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma pack(push,4) [2642] - GenericResultAtLocation [Line: 2643]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma pack(pop) [2643] - GenericResultAtLocation [Line: 2644]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma warning(push) [2644] - GenericResultAtLocation [Line: 2645]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma warning(disable:4035) [2645] - GenericResultAtLocation [Line: 2646]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma warning(pop) [2646] - GenericResultAtLocation [Line: 2651]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma warning(disable:4103) [2651] - GenericResultAtLocation [Line: 2652]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma warning(disable:4103) [2652] - GenericResultAtLocation [Line: 2681]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma warning(push) [2681] - GenericResultAtLocation [Line: 2682]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma warning(disable:4035) [2682] - GenericResultAtLocation [Line: 2683]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma warning(pop) [2683] - GenericResultAtLocation [Line: 2690]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma warning(disable:4035) [2690] - GenericResultAtLocation [Line: 2691]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma warning(push) [2691] - GenericResultAtLocation [Line: 2692]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma warning(disable:4164) [2692] - GenericResultAtLocation [Line: 2693]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma function(_enable) [2693] - GenericResultAtLocation [Line: 2694]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma function(_disable) [2694] - GenericResultAtLocation [Line: 2695]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma warning(pop) [2695] - GenericResultAtLocation [Line: 2696]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma warning(disable:4103) [2696] - GenericResultAtLocation [Line: 2697]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma warning(disable:4103) [2697] - GenericResultAtLocation [Line: 2698]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma warning(disable:4103) [2698] - GenericResultAtLocation [Line: 2699]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma warning(disable:4103) [2699] - GenericResultAtLocation [Line: 2753]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma warning(disable:4103) [2753] - GenericResultAtLocation [Line: 2754]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma warning(disable:4103) [2754] - GenericResultAtLocation [Line: 2827]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma warning(disable:4200) [2827] - GenericResultAtLocation [Line: 2828]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma warning(default:4200) [2828] - GenericResultAtLocation [Line: 2840]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma warning(disable:4200) [2840] - GenericResultAtLocation [Line: 2841]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma warning(default:4200) [2841] - GenericResultAtLocation [Line: 2910]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma alloc_text(INIT,DriverEntry) [2910] - GenericResultAtLocation [Line: 2911]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma alloc_text(PAGECDNC,CdAudioNECDeviceControl) [2911] - GenericResultAtLocation [Line: 2912]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma alloc_text(PAGECDOT,CdAudioHitachiSendPauseCommand) [2912] - GenericResultAtLocation [Line: 2913]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma alloc_text(PAGECDOT,CdAudioHitachiDeviceControl) [2913] - GenericResultAtLocation [Line: 2914]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma alloc_text(PAGECDOT,CdAudioDenonDeviceControl) [2914] - GenericResultAtLocation [Line: 2915]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma alloc_text(PAGECDNC,CdAudio435DeviceControl) [2915] - GenericResultAtLocation [Line: 2916]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma alloc_text(PAGECDNC,CdAudio535DeviceControl) [2916] - GenericResultAtLocation [Line: 2917]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma alloc_text(PAGECDOT,CdAudioPioneerDeviceControl) [2917] - GenericResultAtLocation [Line: 2918]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma alloc_text(PAGECDNC,CdAudioPan533DeviceControl) [2918] - GenericResultAtLocation [Line: 2919]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma alloc_text(PAGECDOT,CdAudioAtapiDeviceControl) [2919] - GenericResultAtLocation [Line: 2920]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma alloc_text(PAGECDOT,CdAudioLionOpticsDeviceControl) [2920] - GenericResultAtLocation [Line: 2921]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma alloc_text(PAGECDOT,CdAudioHPCdrDeviceControl) [2921] - GenericResultAtLocation [Line: 2922]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma alloc_text(PAGECDOT,HpCdrProcessLastSession) [2922] - GenericResultAtLocation [Line: 2923]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma alloc_text(PAGECDOT,HPCdrCompletion) [2923] - GenericResultAtLocation [Line: 7517]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma warning(push) [7517] - GenericResultAtLocation [Line: 7518]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma warning(disable:4035) [7518] - GenericResultAtLocation [Line: 7519]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma warning(pop) [7519] - GenericResultAtLocation [Line: 7520]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma warning(disable:4103) [7520] - GenericResultAtLocation [Line: 7521]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma warning(disable:4103) [7521] - GenericResultAtLocation [Line: 7522]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma warning(push) [7522] - GenericResultAtLocation [Line: 7523]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma warning(disable:4035) [7523] - GenericResultAtLocation [Line: 7524]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma warning(pop) [7524] - GenericResultAtLocation [Line: 7525]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma warning(disable:4035) [7525] - GenericResultAtLocation [Line: 7526]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma warning(push) [7526] - GenericResultAtLocation [Line: 7527]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma warning(disable:4164) [7527] - GenericResultAtLocation [Line: 7528]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma function(_enable) [7528] - GenericResultAtLocation [Line: 7529]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma function(_disable) [7529] - GenericResultAtLocation [Line: 7530]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma warning(pop) [7530] - GenericResultAtLocation [Line: 7531]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma warning(disable:4103) [7531] - GenericResultAtLocation [Line: 7532]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma warning(disable:4103) [7532] - GenericResultAtLocation [Line: 7533]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma warning(disable:4103) [7533] - GenericResultAtLocation [Line: 7534]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma warning(disable:4103) [7534] - GenericResultAtLocation [Line: 7535]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma warning(disable:4103) [7535] - GenericResultAtLocation [Line: 7536]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma warning(disable:4103) [7536] - GenericResultAtLocation [Line: 7537]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma warning(disable:4200) [7537] - GenericResultAtLocation [Line: 7538]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma warning(default:4200) [7538] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 2847]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 2847). Cancelled while NwaCegarLoop was constructing difference of abstraction (1063states) and FLOYD_HOARE automaton (currently 2 states, 18 states before enhancement),while ReachableStatesComputation was computing reachable states (1 states constructed, input type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 46 procedures, 703 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 858.5s, OverallIterations: 33, TraceHistogramMax: 13, PathProgramHistogramMax: 5, EmptinessCheckTime: 0.1s, AutomataDifference: 102.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 15696 SdHoareTripleChecker+Valid, 98.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 15385 mSDsluCounter, 108016 SdHoareTripleChecker+Invalid, 93.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 80756 mSDsCounter, 4142 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 33030 IncrementalHoareTripleChecker+Invalid, 37172 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4142 mSolverCounterUnsat, 27260 mSDtfsCounter, 33030 mSolverCounterSat, 0.4s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1103 GetRequests, 839 SyntacticMatches, 0 SemanticMatches, 264 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 207 ImplicationChecksByTransitivity, 2.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1990occurred in iteration=10, InterpolantAutomatonStates: 247, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 2.5s AutomataMinimizationTime, 32 MinimizatonAttempts, 2126 StatesRemovedByMinimization, 27 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.5s SsaConstructionTime, 1.6s SatisfiabilityAnalysisTime, 6.4s InterpolantComputationTime, 1948 NumberOfCodeBlocks, 1913 NumberOfCodeBlocksAsserted, 43 NumberOfCheckSat, 2220 ConstructedInterpolants, 0 QuantifiedInterpolants, 3681 SizeOfPredicates, 8 NumberOfNonLiveVariables, 6459 ConjunctsInSsa, 121 ConjunctsInUnsatCore, 45 InterpolantComputations, 27 PerfectInterpolantSequences, 2340/2856 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown