./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/ntdrivers/cdaudio.i.cil-1.c --full-output --preprocessor.use.memory.slicer true --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6ae2ee47 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/ntdrivers/cdaudio.i.cil-1.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ad0884018313fc350052496ea1071e31a8b2c3997d36767afc87946a21697816 --preprocessor.use.memory.slicer true --- Real Ultimate output --- This is Ultimate 0.2.3-dev-6ae2ee4-m [2023-11-22 18:18:20,699 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-22 18:18:20,766 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-22 18:18:20,770 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-22 18:18:20,771 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-22 18:18:20,792 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-22 18:18:20,793 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-22 18:18:20,793 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-22 18:18:20,794 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-22 18:18:20,797 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-22 18:18:20,797 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-22 18:18:20,797 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-22 18:18:20,798 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-22 18:18:20,799 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-22 18:18:20,799 INFO L153 SettingsManager]: * Use SBE=true [2023-11-22 18:18:20,799 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-22 18:18:20,800 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-22 18:18:20,800 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-22 18:18:20,800 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-22 18:18:20,800 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-22 18:18:20,800 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-22 18:18:20,801 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-22 18:18:20,801 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-22 18:18:20,801 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-22 18:18:20,802 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-22 18:18:20,802 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-22 18:18:20,802 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-22 18:18:20,803 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-22 18:18:20,803 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-22 18:18:20,803 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-22 18:18:20,804 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-22 18:18:20,804 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-22 18:18:20,804 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-22 18:18:20,804 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-22 18:18:20,805 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-22 18:18:20,805 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-22 18:18:20,805 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-22 18:18:20,805 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-22 18:18:20,805 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-22 18:18:20,805 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-22 18:18:20,806 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-22 18:18:20,806 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-22 18:18:20,806 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ad0884018313fc350052496ea1071e31a8b2c3997d36767afc87946a21697816 Applying setting for plugin de.uni_freiburg.informatik.ultimate.boogie.preprocessor: Use memory slicer -> true [2023-11-22 18:18:21,000 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-22 18:18:21,024 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-22 18:18:21,026 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-22 18:18:21,027 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-22 18:18:21,027 INFO L274 PluginConnector]: CDTParser initialized [2023-11-22 18:18:21,028 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ntdrivers/cdaudio.i.cil-1.c [2023-11-22 18:18:22,086 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-22 18:18:22,531 INFO L384 CDTParser]: Found 1 translation units. [2023-11-22 18:18:22,532 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ntdrivers/cdaudio.i.cil-1.c [2023-11-22 18:18:22,570 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/77cf2e5be/1db6b905e1484909add3a5c8569d3df0/FLAG365cc1f5a [2023-11-22 18:18:22,581 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/77cf2e5be/1db6b905e1484909add3a5c8569d3df0 [2023-11-22 18:18:22,583 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-22 18:18:22,584 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-22 18:18:22,586 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-22 18:18:22,586 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-22 18:18:22,590 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-22 18:18:22,590 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 06:18:22" (1/1) ... [2023-11-22 18:18:22,591 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@10e4394d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:18:22, skipping insertion in model container [2023-11-22 18:18:22,591 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 06:18:22" (1/1) ... [2023-11-22 18:18:22,688 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-22 18:18:23,163 WARN L240 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] [2023-11-22 18:18:23,679 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-22 18:18:23,691 INFO L202 MainTranslator]: Completed pre-run [2023-11-22 18:18:23,698 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma pack(push,8) [13] [2023-11-22 18:18:23,699 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma pack(pop) [14] [2023-11-22 18:18:23,699 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma pack(push,4) [187] [2023-11-22 18:18:23,699 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma pack(pop) [193] [2023-11-22 18:18:23,699 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma pack(push,4) [399] [2023-11-22 18:18:23,699 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma pack(pop) [452] [2023-11-22 18:18:23,699 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma pack(push,1) [471] [2023-11-22 18:18:23,700 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma pack(pop) [472] [2023-11-22 18:18:23,700 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma pack(push,4) [1153] [2023-11-22 18:18:23,700 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma pack(pop) [1326] [2023-11-22 18:18:23,700 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma pack(push,8) [1446] [2023-11-22 18:18:23,700 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma pack(pop) [1447] [2023-11-22 18:18:23,700 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma pack(1) [2284] [2023-11-22 18:18:23,700 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma pack() [2285] [2023-11-22 18:18:23,701 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma pack(push,8) [2626] [2023-11-22 18:18:23,701 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma pack(pop) [2627] [2023-11-22 18:18:23,701 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma pack(push,4) [2630] [2023-11-22 18:18:23,701 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma pack(pop) [2631] [2023-11-22 18:18:23,701 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma pack(push,4) [2632] [2023-11-22 18:18:23,701 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma pack(pop) [2633] [2023-11-22 18:18:23,701 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma pack(push,1) [2634] [2023-11-22 18:18:23,701 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma pack(pop) [2635] [2023-11-22 18:18:23,702 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma pack(push,4) [2642] [2023-11-22 18:18:23,702 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma pack(pop) [2643] [2023-11-22 18:18:23,704 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma warning(push) [2644] [2023-11-22 18:18:23,705 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma warning(disable:4035) [2645] [2023-11-22 18:18:23,705 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma warning(pop) [2646] [2023-11-22 18:18:23,705 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma warning(disable:4103) [2651] [2023-11-22 18:18:23,705 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma warning(disable:4103) [2652] [2023-11-22 18:18:23,705 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma warning(push) [2681] [2023-11-22 18:18:23,705 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma warning(disable:4035) [2682] [2023-11-22 18:18:23,705 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma warning(pop) [2683] [2023-11-22 18:18:23,706 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma warning(disable:4035) [2690] [2023-11-22 18:18:23,706 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma warning(push) [2691] [2023-11-22 18:18:23,706 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma warning(disable:4164) [2692] [2023-11-22 18:18:23,706 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma function(_enable) [2693] [2023-11-22 18:18:23,706 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma function(_disable) [2694] [2023-11-22 18:18:23,707 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma warning(pop) [2695] [2023-11-22 18:18:23,707 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma warning(disable:4103) [2696] [2023-11-22 18:18:23,707 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma warning(disable:4103) [2697] [2023-11-22 18:18:23,707 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma warning(disable:4103) [2698] [2023-11-22 18:18:23,707 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma warning(disable:4103) [2699] [2023-11-22 18:18:23,708 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma warning(disable:4103) [2753] [2023-11-22 18:18:23,708 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma warning(disable:4103) [2754] [2023-11-22 18:18:23,708 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma warning(disable:4200) [2827] [2023-11-22 18:18:23,708 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma warning(default:4200) [2828] [2023-11-22 18:18:23,708 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma warning(disable:4200) [2840] [2023-11-22 18:18:23,708 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma warning(default:4200) [2841] [2023-11-22 18:18:23,708 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma alloc_text(INIT,DriverEntry) [2910] [2023-11-22 18:18:23,709 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma alloc_text(PAGECDNC,CdAudioNECDeviceControl) [2911] [2023-11-22 18:18:23,709 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma alloc_text(PAGECDOT,CdAudioHitachiSendPauseCommand) [2912] [2023-11-22 18:18:23,709 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma alloc_text(PAGECDOT,CdAudioHitachiDeviceControl) [2913] [2023-11-22 18:18:23,709 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma alloc_text(PAGECDOT,CdAudioDenonDeviceControl) [2914] [2023-11-22 18:18:23,709 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma alloc_text(PAGECDNC,CdAudio435DeviceControl) [2915] [2023-11-22 18:18:23,710 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma alloc_text(PAGECDNC,CdAudio535DeviceControl) [2916] [2023-11-22 18:18:23,710 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma alloc_text(PAGECDOT,CdAudioPioneerDeviceControl) [2917] [2023-11-22 18:18:23,710 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma alloc_text(PAGECDNC,CdAudioPan533DeviceControl) [2918] [2023-11-22 18:18:23,710 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma alloc_text(PAGECDOT,CdAudioAtapiDeviceControl) [2919] [2023-11-22 18:18:23,710 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma alloc_text(PAGECDOT,CdAudioLionOpticsDeviceControl) [2920] [2023-11-22 18:18:23,711 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma alloc_text(PAGECDOT,CdAudioHPCdrDeviceControl) [2921] [2023-11-22 18:18:23,711 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma alloc_text(PAGECDOT,HpCdrProcessLastSession) [2922] [2023-11-22 18:18:23,711 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma alloc_text(PAGECDOT,HPCdrCompletion) [2923] [2023-11-22 18:18:23,712 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma warning(push) [7517] [2023-11-22 18:18:23,712 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma warning(disable:4035) [7518] [2023-11-22 18:18:23,713 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma warning(pop) [7519] [2023-11-22 18:18:23,713 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma warning(disable:4103) [7520] [2023-11-22 18:18:23,713 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma warning(disable:4103) [7521] [2023-11-22 18:18:23,713 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma warning(push) [7522] [2023-11-22 18:18:23,713 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma warning(disable:4035) [7523] [2023-11-22 18:18:23,713 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma warning(pop) [7524] [2023-11-22 18:18:23,713 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma warning(disable:4035) [7525] [2023-11-22 18:18:23,714 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma warning(push) [7526] [2023-11-22 18:18:23,714 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma warning(disable:4164) [7527] [2023-11-22 18:18:23,714 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma function(_enable) [7528] [2023-11-22 18:18:23,714 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma function(_disable) [7529] [2023-11-22 18:18:23,714 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma warning(pop) [7530] [2023-11-22 18:18:23,714 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma warning(disable:4103) [7531] [2023-11-22 18:18:23,714 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma warning(disable:4103) [7532] [2023-11-22 18:18:23,714 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma warning(disable:4103) [7533] [2023-11-22 18:18:23,715 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma warning(disable:4103) [7534] [2023-11-22 18:18:23,715 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma warning(disable:4103) [7535] [2023-11-22 18:18:23,715 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma warning(disable:4103) [7536] [2023-11-22 18:18:23,715 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma warning(disable:4200) [7537] [2023-11-22 18:18:23,715 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma warning(default:4200) [7538] [2023-11-22 18:18:23,799 WARN L240 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] [2023-11-22 18:18:24,026 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-22 18:18:24,041 WARN L675 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-22 18:18:24,047 INFO L206 MainTranslator]: Completed translation [2023-11-22 18:18:24,047 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:18:24 WrapperNode [2023-11-22 18:18:24,048 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-22 18:18:24,048 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-22 18:18:24,048 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-22 18:18:24,049 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-22 18:18:24,053 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:18:24" (1/1) ... [2023-11-22 18:18:24,118 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:18:24" (1/1) ... [2023-11-22 18:18:24,203 INFO L138 Inliner]: procedures = 120, calls = 2195, calls flagged for inlining = 23, calls inlined = 19, statements flattened = 2497 [2023-11-22 18:18:24,203 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-22 18:18:24,204 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-22 18:18:24,204 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-22 18:18:24,204 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-22 18:18:24,212 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:18:24" (1/1) ... [2023-11-22 18:18:24,212 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:18:24" (1/1) ... [2023-11-22 18:18:24,221 INFO L184 PluginConnector]: Executing the observer HeapSplitter from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:18:24" (1/1) ... [2023-11-22 18:18:24,282 INFO L189 HeapSplitter]: Split 698 memory accesses to 17 slices as follows [2, 1, 0, 1, 7, 224, 111, 13, 0, 113, 84, 4, 115, 2, 20, 0, 1] [2023-11-22 18:18:24,282 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:18:24" (1/1) ... [2023-11-22 18:18:24,283 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:18:24" (1/1) ... [2023-11-22 18:18:24,337 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:18:24" (1/1) ... [2023-11-22 18:18:24,347 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:18:24" (1/1) ... [2023-11-22 18:18:24,397 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:18:24" (1/1) ... [2023-11-22 18:18:24,409 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:18:24" (1/1) ... [2023-11-22 18:18:24,439 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-22 18:18:24,439 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-22 18:18:24,440 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-22 18:18:24,440 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-22 18:18:24,440 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:18:24" (1/1) ... [2023-11-22 18:18:24,444 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-22 18:18:24,451 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-22 18:18:24,463 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-22 18:18:24,479 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-22 18:18:24,496 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2023-11-22 18:18:24,496 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2023-11-22 18:18:24,497 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2023-11-22 18:18:24,497 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2023-11-22 18:18:24,497 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2023-11-22 18:18:24,497 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2023-11-22 18:18:24,497 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2023-11-22 18:18:24,497 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#7 [2023-11-22 18:18:24,497 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#8 [2023-11-22 18:18:24,497 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#9 [2023-11-22 18:18:24,497 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#10 [2023-11-22 18:18:24,497 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#11 [2023-11-22 18:18:24,498 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#12 [2023-11-22 18:18:24,498 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#13 [2023-11-22 18:18:24,498 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#14 [2023-11-22 18:18:24,498 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#15 [2023-11-22 18:18:24,498 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#16 [2023-11-22 18:18:24,498 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#0 [2023-11-22 18:18:24,498 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#1 [2023-11-22 18:18:24,498 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#2 [2023-11-22 18:18:24,498 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#3 [2023-11-22 18:18:24,499 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#4 [2023-11-22 18:18:24,499 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#5 [2023-11-22 18:18:24,499 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#6 [2023-11-22 18:18:24,499 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#7 [2023-11-22 18:18:24,499 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#8 [2023-11-22 18:18:24,499 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#9 [2023-11-22 18:18:24,499 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#10 [2023-11-22 18:18:24,499 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#11 [2023-11-22 18:18:24,499 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#12 [2023-11-22 18:18:24,500 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#13 [2023-11-22 18:18:24,500 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#14 [2023-11-22 18:18:24,500 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#15 [2023-11-22 18:18:24,500 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#16 [2023-11-22 18:18:24,500 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2023-11-22 18:18:24,500 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2023-11-22 18:18:24,500 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2023-11-22 18:18:24,500 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2023-11-22 18:18:24,500 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2023-11-22 18:18:24,501 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2023-11-22 18:18:24,501 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2023-11-22 18:18:24,501 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#7 [2023-11-22 18:18:24,501 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#8 [2023-11-22 18:18:24,501 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#9 [2023-11-22 18:18:24,501 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#10 [2023-11-22 18:18:24,501 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#11 [2023-11-22 18:18:24,501 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#12 [2023-11-22 18:18:24,501 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#13 [2023-11-22 18:18:24,502 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#14 [2023-11-22 18:18:24,502 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#15 [2023-11-22 18:18:24,502 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#16 [2023-11-22 18:18:24,502 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-11-22 18:18:24,502 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-11-22 18:18:24,502 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2023-11-22 18:18:24,502 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2023-11-22 18:18:24,502 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2023-11-22 18:18:24,502 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2023-11-22 18:18:24,502 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2023-11-22 18:18:24,503 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2023-11-22 18:18:24,503 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2023-11-22 18:18:24,503 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2023-11-22 18:18:24,503 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2023-11-22 18:18:24,503 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#11 [2023-11-22 18:18:24,503 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#12 [2023-11-22 18:18:24,503 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#13 [2023-11-22 18:18:24,503 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#14 [2023-11-22 18:18:24,503 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#15 [2023-11-22 18:18:24,504 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#16 [2023-11-22 18:18:24,504 INFO L130 BoogieDeclarations]: Found specification of procedure errorFn [2023-11-22 18:18:24,504 INFO L138 BoogieDeclarations]: Found implementation of procedure errorFn [2023-11-22 18:18:24,504 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#0 [2023-11-22 18:18:24,504 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#1 [2023-11-22 18:18:24,504 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#2 [2023-11-22 18:18:24,504 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#3 [2023-11-22 18:18:24,504 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#4 [2023-11-22 18:18:24,504 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#5 [2023-11-22 18:18:24,505 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#6 [2023-11-22 18:18:24,505 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#7 [2023-11-22 18:18:24,505 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#8 [2023-11-22 18:18:24,505 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#9 [2023-11-22 18:18:24,505 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#10 [2023-11-22 18:18:24,505 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#11 [2023-11-22 18:18:24,505 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#12 [2023-11-22 18:18:24,505 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#13 [2023-11-22 18:18:24,505 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#14 [2023-11-22 18:18:24,505 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#15 [2023-11-22 18:18:24,506 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#16 [2023-11-22 18:18:24,506 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#0 [2023-11-22 18:18:24,506 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#1 [2023-11-22 18:18:24,506 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#2 [2023-11-22 18:18:24,506 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#3 [2023-11-22 18:18:24,506 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#4 [2023-11-22 18:18:24,506 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#5 [2023-11-22 18:18:24,506 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#6 [2023-11-22 18:18:24,506 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#7 [2023-11-22 18:18:24,507 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#8 [2023-11-22 18:18:24,507 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#9 [2023-11-22 18:18:24,507 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#10 [2023-11-22 18:18:24,507 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#11 [2023-11-22 18:18:24,507 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#12 [2023-11-22 18:18:24,507 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#13 [2023-11-22 18:18:24,507 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#14 [2023-11-22 18:18:24,507 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#15 [2023-11-22 18:18:24,508 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#16 [2023-11-22 18:18:24,508 INFO L130 BoogieDeclarations]: Found specification of procedure MmLockPagableDataSection [2023-11-22 18:18:24,508 INFO L138 BoogieDeclarations]: Found implementation of procedure MmLockPagableDataSection [2023-11-22 18:18:24,508 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-11-22 18:18:24,508 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-11-22 18:18:24,508 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2023-11-22 18:18:24,508 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2023-11-22 18:18:24,508 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2023-11-22 18:18:24,508 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2023-11-22 18:18:24,509 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2023-11-22 18:18:24,509 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2023-11-22 18:18:24,509 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2023-11-22 18:18:24,509 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2023-11-22 18:18:24,509 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2023-11-22 18:18:24,509 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#11 [2023-11-22 18:18:24,509 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#12 [2023-11-22 18:18:24,509 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#13 [2023-11-22 18:18:24,509 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#14 [2023-11-22 18:18:24,509 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#15 [2023-11-22 18:18:24,510 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#16 [2023-11-22 18:18:24,510 INFO L130 BoogieDeclarations]: Found specification of procedure CdAudioIsPlayActive [2023-11-22 18:18:24,510 INFO L138 BoogieDeclarations]: Found implementation of procedure CdAudioIsPlayActive [2023-11-22 18:18:24,510 INFO L130 BoogieDeclarations]: Found specification of procedure IoOpenDeviceRegistryKey [2023-11-22 18:18:24,510 INFO L138 BoogieDeclarations]: Found implementation of procedure IoOpenDeviceRegistryKey [2023-11-22 18:18:24,510 INFO L130 BoogieDeclarations]: Found specification of procedure IofCompleteRequest [2023-11-22 18:18:24,510 INFO L138 BoogieDeclarations]: Found implementation of procedure IofCompleteRequest [2023-11-22 18:18:24,510 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2023-11-22 18:18:24,510 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2023-11-22 18:18:24,511 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2023-11-22 18:18:24,511 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#3 [2023-11-22 18:18:24,511 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#4 [2023-11-22 18:18:24,511 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#5 [2023-11-22 18:18:24,511 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#6 [2023-11-22 18:18:24,511 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#7 [2023-11-22 18:18:24,511 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#8 [2023-11-22 18:18:24,511 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#9 [2023-11-22 18:18:24,511 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#10 [2023-11-22 18:18:24,512 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#11 [2023-11-22 18:18:24,512 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#12 [2023-11-22 18:18:24,512 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#13 [2023-11-22 18:18:24,512 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#14 [2023-11-22 18:18:24,512 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#15 [2023-11-22 18:18:24,512 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#16 [2023-11-22 18:18:24,512 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2023-11-22 18:18:24,512 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2023-11-22 18:18:24,512 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2023-11-22 18:18:24,513 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#3 [2023-11-22 18:18:24,513 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#4 [2023-11-22 18:18:24,513 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#5 [2023-11-22 18:18:24,513 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#6 [2023-11-22 18:18:24,513 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#7 [2023-11-22 18:18:24,513 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#8 [2023-11-22 18:18:24,513 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#9 [2023-11-22 18:18:24,513 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#10 [2023-11-22 18:18:24,513 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#11 [2023-11-22 18:18:24,514 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#12 [2023-11-22 18:18:24,514 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#13 [2023-11-22 18:18:24,514 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#14 [2023-11-22 18:18:24,514 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#15 [2023-11-22 18:18:24,514 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#16 [2023-11-22 18:18:24,514 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_malloc [2023-11-22 18:18:24,514 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_malloc [2023-11-22 18:18:24,514 INFO L130 BoogieDeclarations]: Found specification of procedure IofCallDriver [2023-11-22 18:18:24,514 INFO L138 BoogieDeclarations]: Found implementation of procedure IofCallDriver [2023-11-22 18:18:24,515 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-22 18:18:24,515 INFO L130 BoogieDeclarations]: Found specification of procedure ZwClose [2023-11-22 18:18:24,515 INFO L138 BoogieDeclarations]: Found implementation of procedure ZwClose [2023-11-22 18:18:24,515 INFO L130 BoogieDeclarations]: Found specification of procedure SendSrbSynchronous [2023-11-22 18:18:24,515 INFO L138 BoogieDeclarations]: Found implementation of procedure SendSrbSynchronous [2023-11-22 18:18:24,515 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-22 18:18:24,515 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2023-11-22 18:18:24,515 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2023-11-22 18:18:24,515 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2023-11-22 18:18:24,515 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2023-11-22 18:18:24,516 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2023-11-22 18:18:24,516 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2023-11-22 18:18:24,516 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2023-11-22 18:18:24,516 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2023-11-22 18:18:24,516 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#8 [2023-11-22 18:18:24,516 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#9 [2023-11-22 18:18:24,516 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#10 [2023-11-22 18:18:24,516 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#11 [2023-11-22 18:18:24,516 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#12 [2023-11-22 18:18:24,517 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#13 [2023-11-22 18:18:24,517 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#14 [2023-11-22 18:18:24,517 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#15 [2023-11-22 18:18:24,517 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#16 [2023-11-22 18:18:24,517 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-22 18:18:24,517 INFO L130 BoogieDeclarations]: Found specification of procedure stubMoreProcessingRequired [2023-11-22 18:18:24,517 INFO L138 BoogieDeclarations]: Found implementation of procedure stubMoreProcessingRequired [2023-11-22 18:18:24,517 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2023-11-22 18:18:24,518 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2023-11-22 18:18:24,518 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2023-11-22 18:18:24,518 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2023-11-22 18:18:24,518 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2023-11-22 18:18:24,518 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2023-11-22 18:18:24,518 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2023-11-22 18:18:24,518 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2023-11-22 18:18:24,518 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2023-11-22 18:18:24,518 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2023-11-22 18:18:24,519 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#9 [2023-11-22 18:18:24,519 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#10 [2023-11-22 18:18:24,519 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#11 [2023-11-22 18:18:24,519 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#12 [2023-11-22 18:18:24,519 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#13 [2023-11-22 18:18:24,519 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#14 [2023-11-22 18:18:24,519 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#15 [2023-11-22 18:18:24,519 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#16 [2023-11-22 18:18:24,519 INFO L130 BoogieDeclarations]: Found specification of procedure KeSetEvent [2023-11-22 18:18:24,519 INFO L138 BoogieDeclarations]: Found implementation of procedure KeSetEvent [2023-11-22 18:18:24,520 INFO L130 BoogieDeclarations]: Found specification of procedure CdAudioSignalCompletion [2023-11-22 18:18:24,520 INFO L138 BoogieDeclarations]: Found implementation of procedure CdAudioSignalCompletion [2023-11-22 18:18:24,520 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-22 18:18:24,520 INFO L130 BoogieDeclarations]: Found specification of procedure KeWaitForSingleObject [2023-11-22 18:18:24,520 INFO L138 BoogieDeclarations]: Found implementation of procedure KeWaitForSingleObject [2023-11-22 18:18:24,520 INFO L130 BoogieDeclarations]: Found specification of procedure HPCdrCompletion [2023-11-22 18:18:24,520 INFO L138 BoogieDeclarations]: Found implementation of procedure HPCdrCompletion [2023-11-22 18:18:24,520 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-22 18:18:24,520 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-22 18:18:24,520 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-11-22 18:18:24,521 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-11-22 18:18:24,521 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2023-11-22 18:18:24,521 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2023-11-22 18:18:24,521 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2023-11-22 18:18:24,521 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2023-11-22 18:18:24,521 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2023-11-22 18:18:24,521 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2023-11-22 18:18:24,521 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2023-11-22 18:18:24,521 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2023-11-22 18:18:24,522 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2023-11-22 18:18:24,522 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2023-11-22 18:18:24,522 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2023-11-22 18:18:24,522 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2023-11-22 18:18:24,522 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#16 [2023-11-22 18:18:24,522 INFO L130 BoogieDeclarations]: Found specification of procedure CdAudioSendToNextDriver [2023-11-22 18:18:24,522 INFO L138 BoogieDeclarations]: Found implementation of procedure CdAudioSendToNextDriver [2023-11-22 18:18:24,522 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#0 [2023-11-22 18:18:24,522 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#1 [2023-11-22 18:18:24,522 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#2 [2023-11-22 18:18:24,523 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#3 [2023-11-22 18:18:24,523 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#4 [2023-11-22 18:18:24,523 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#5 [2023-11-22 18:18:24,523 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#6 [2023-11-22 18:18:24,523 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#7 [2023-11-22 18:18:24,523 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#8 [2023-11-22 18:18:24,523 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#9 [2023-11-22 18:18:24,523 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#10 [2023-11-22 18:18:24,523 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#11 [2023-11-22 18:18:24,523 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#12 [2023-11-22 18:18:24,524 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#13 [2023-11-22 18:18:24,524 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#14 [2023-11-22 18:18:24,524 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#15 [2023-11-22 18:18:24,524 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#16 [2023-11-22 18:18:24,524 INFO L130 BoogieDeclarations]: Found specification of procedure ExAllocatePoolWithTag [2023-11-22 18:18:24,524 INFO L138 BoogieDeclarations]: Found implementation of procedure ExAllocatePoolWithTag [2023-11-22 18:18:24,524 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-22 18:18:24,524 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-22 18:18:24,524 INFO L130 BoogieDeclarations]: Found specification of procedure CdAudioForwardIrpSynchronous [2023-11-22 18:18:24,524 INFO L138 BoogieDeclarations]: Found implementation of procedure CdAudioForwardIrpSynchronous [2023-11-22 18:18:25,000 INFO L241 CfgBuilder]: Building ICFG [2023-11-22 18:18:25,003 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-22 18:18:25,356 WARN L821 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-11-22 18:18:25,410 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##21: assume !false; [2023-11-22 18:18:25,410 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##20: assume false; [2023-11-22 18:18:25,796 WARN L821 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-11-22 18:18:25,810 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2023-11-22 18:18:25,810 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2023-11-22 18:18:25,839 WARN L821 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-11-22 18:18:25,847 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##16: assume !false; [2023-11-22 18:18:25,847 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##15: assume false; [2023-11-22 18:18:26,536 WARN L821 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-11-22 18:18:26,536 WARN L821 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-11-22 18:18:26,538 WARN L821 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-11-22 18:18:26,545 WARN L821 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-11-22 18:18:26,551 WARN L821 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-11-22 18:18:26,559 WARN L821 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-11-22 18:18:28,260 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##202: assume !false; [2023-11-22 18:18:28,260 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##201: assume false; [2023-11-22 18:18:28,260 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##600: assume !false; [2023-11-22 18:18:28,260 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint L3709: CdAudioPnp_#res#1 := 0; [2023-11-22 18:18:28,260 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##65: assume !false; [2023-11-22 18:18:28,260 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##64: assume false; [2023-11-22 18:18:28,260 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##43: assume !false; [2023-11-22 18:18:28,260 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##42: assume false; [2023-11-22 18:18:28,261 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##32: assume false; [2023-11-22 18:18:28,261 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##33: assume !false; [2023-11-22 18:18:28,261 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##349: assume !false; [2023-11-22 18:18:28,261 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##348: assume false; [2023-11-22 18:18:28,261 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##599: assume false; [2023-11-22 18:18:28,302 INFO L282 CfgBuilder]: Performing block encoding [2023-11-22 18:18:28,458 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-22 18:18:28,458 INFO L309 CfgBuilder]: Removed 6 assume(true) statements. [2023-11-22 18:18:28,459 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 06:18:28 BoogieIcfgContainer [2023-11-22 18:18:28,459 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-22 18:18:28,460 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-22 18:18:28,460 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-22 18:18:28,463 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-22 18:18:28,463 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 06:18:22" (1/3) ... [2023-11-22 18:18:28,463 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b51169e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 06:18:28, skipping insertion in model container [2023-11-22 18:18:28,464 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:18:24" (2/3) ... [2023-11-22 18:18:28,465 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b51169e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 06:18:28, skipping insertion in model container [2023-11-22 18:18:28,465 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 06:18:28" (3/3) ... [2023-11-22 18:18:28,466 INFO L112 eAbstractionObserver]: Analyzing ICFG cdaudio.i.cil-1.c [2023-11-22 18:18:28,479 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-22 18:18:28,479 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-22 18:18:28,533 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-22 18:18:28,538 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;@5c779876, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-22 18:18:28,539 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-22 18:18:28,546 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) [2023-11-22 18:18:28,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-11-22 18:18:28,554 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 18:18:28,554 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-22 18:18:28,555 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 18:18:28,560 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 18:18:28,560 INFO L85 PathProgramCache]: Analyzing trace with hash -282612783, now seen corresponding path program 1 times [2023-11-22 18:18:28,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 18:18:28,571 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [514894454] [2023-11-22 18:18:28,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 18:18:28,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 18:18:28,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:18:28,801 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-22 18:18:28,802 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 18:18:28,802 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [514894454] [2023-11-22 18:18:28,803 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [514894454] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 18:18:28,803 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-22 18:18:28,809 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-22 18:18:28,811 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1609225152] [2023-11-22 18:18:28,811 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 18:18:28,814 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-22 18:18:28,814 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 18:18:28,835 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-22 18:18:28,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-22 18:18:28,840 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) [2023-11-22 18:18:29,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 18:18:29,087 INFO L93 Difference]: Finished difference Result 1233 states and 2039 transitions. [2023-11-22 18:18:29,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-22 18:18:29,090 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 [2023-11-22 18:18:29,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 18:18:29,098 INFO L225 Difference]: With dead ends: 1233 [2023-11-22 18:18:29,099 INFO L226 Difference]: Without dead ends: 614 [2023-11-22 18:18:29,103 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 [2023-11-22 18:18:29,106 INFO L413 NwaCegarLoop]: 908 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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, 0.2s IncrementalHoareTripleChecker+Time [2023-11-22 18:18:29,106 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 908 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-22 18:18:29,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 614 states. [2023-11-22 18:18:29,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 614 to 614. [2023-11-22 18:18:29,153 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) [2023-11-22 18:18:29,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 614 states to 614 states and 956 transitions. [2023-11-22 18:18:29,157 INFO L78 Accepts]: Start accepts. Automaton has 614 states and 956 transitions. Word has length 17 [2023-11-22 18:18:29,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 18:18:29,158 INFO L495 AbstractCegarLoop]: Abstraction has 614 states and 956 transitions. [2023-11-22 18:18:29,158 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) [2023-11-22 18:18:29,158 INFO L276 IsEmpty]: Start isEmpty. Operand 614 states and 956 transitions. [2023-11-22 18:18:29,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-11-22 18:18:29,159 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 18:18:29,159 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-22 18:18:29,159 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-22 18:18:29,159 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 18:18:29,160 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 18:18:29,160 INFO L85 PathProgramCache]: Analyzing trace with hash -1057109097, now seen corresponding path program 1 times [2023-11-22 18:18:29,160 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 18:18:29,160 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [630813043] [2023-11-22 18:18:29,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 18:18:29,161 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 18:18:29,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:18:29,250 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-22 18:18:29,250 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 18:18:29,250 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [630813043] [2023-11-22 18:18:29,251 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [630813043] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 18:18:29,251 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-22 18:18:29,251 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-22 18:18:29,251 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1598120703] [2023-11-22 18:18:29,251 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 18:18:29,252 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-22 18:18:29,252 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 18:18:29,252 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-22 18:18:29,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-22 18:18:29,253 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) [2023-11-22 18:18:29,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 18:18:29,562 INFO L93 Difference]: Finished difference Result 633 states and 981 transitions. [2023-11-22 18:18:29,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-22 18:18:29,562 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 [2023-11-22 18:18:29,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 18:18:29,565 INFO L225 Difference]: With dead ends: 633 [2023-11-22 18:18:29,565 INFO L226 Difference]: Without dead ends: 614 [2023-11-22 18:18:29,566 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-22 18:18:29,566 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, 0.3s IncrementalHoareTripleChecker+Time [2023-11-22 18:18:29,567 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 1746 Invalid, 156 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 155 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-22 18:18:29,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 614 states. [2023-11-22 18:18:29,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 614 to 614. [2023-11-22 18:18:29,583 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) [2023-11-22 18:18:29,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 614 states to 614 states and 955 transitions. [2023-11-22 18:18:29,585 INFO L78 Accepts]: Start accepts. Automaton has 614 states and 955 transitions. Word has length 17 [2023-11-22 18:18:29,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 18:18:29,586 INFO L495 AbstractCegarLoop]: Abstraction has 614 states and 955 transitions. [2023-11-22 18:18:29,586 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) [2023-11-22 18:18:29,586 INFO L276 IsEmpty]: Start isEmpty. Operand 614 states and 955 transitions. [2023-11-22 18:18:29,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-11-22 18:18:29,586 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 18:18:29,587 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-22 18:18:29,587 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-22 18:18:29,587 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 18:18:29,587 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 18:18:29,587 INFO L85 PathProgramCache]: Analyzing trace with hash -1204461425, now seen corresponding path program 1 times [2023-11-22 18:18:29,587 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 18:18:29,588 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1854995535] [2023-11-22 18:18:29,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 18:18:29,588 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 18:18:29,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:18:29,697 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-22 18:18:29,698 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 18:18:29,698 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1854995535] [2023-11-22 18:18:29,698 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1854995535] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 18:18:29,698 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-22 18:18:29,698 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-22 18:18:29,698 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1295450684] [2023-11-22 18:18:29,698 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 18:18:29,699 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-22 18:18:29,699 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 18:18:29,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-22 18:18:29,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-22 18:18:29,700 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) [2023-11-22 18:18:30,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 18:18:30,312 INFO L93 Difference]: Finished difference Result 1109 states and 1706 transitions. [2023-11-22 18:18:30,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-22 18:18:30,313 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 [2023-11-22 18:18:30,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 18:18:30,317 INFO L225 Difference]: With dead ends: 1109 [2023-11-22 18:18:30,317 INFO L226 Difference]: Without dead ends: 873 [2023-11-22 18:18:30,318 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-22 18:18:30,318 INFO L413 NwaCegarLoop]: 1204 mSDtfsCounter, 873 mSDsluCounter, 374 mSDsCounter, 0 mSdLazyCounter, 179 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 873 SdHoareTripleChecker+Valid, 1578 SdHoareTripleChecker+Invalid, 194 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 179 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-22 18:18:30,319 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [873 Valid, 1578 Invalid, 194 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 179 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-22 18:18:30,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 873 states. [2023-11-22 18:18:30,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 873 to 854. [2023-11-22 18:18:30,340 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) [2023-11-22 18:18:30,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 854 states to 854 states and 1322 transitions. [2023-11-22 18:18:30,343 INFO L78 Accepts]: Start accepts. Automaton has 854 states and 1322 transitions. Word has length 17 [2023-11-22 18:18:30,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 18:18:30,344 INFO L495 AbstractCegarLoop]: Abstraction has 854 states and 1322 transitions. [2023-11-22 18:18:30,344 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) [2023-11-22 18:18:30,344 INFO L276 IsEmpty]: Start isEmpty. Operand 854 states and 1322 transitions. [2023-11-22 18:18:30,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-11-22 18:18:30,345 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 18:18:30,345 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] [2023-11-22 18:18:30,345 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-22 18:18:30,345 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 18:18:30,346 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 18:18:30,346 INFO L85 PathProgramCache]: Analyzing trace with hash 1737763831, now seen corresponding path program 1 times [2023-11-22 18:18:30,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 18:18:30,346 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [180370587] [2023-11-22 18:18:30,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 18:18:30,346 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 18:18:30,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:18:30,402 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-22 18:18:30,402 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 18:18:30,403 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [180370587] [2023-11-22 18:18:30,403 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [180370587] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 18:18:30,403 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-22 18:18:30,403 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-22 18:18:30,403 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1598201128] [2023-11-22 18:18:30,403 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 18:18:30,403 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-22 18:18:30,404 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 18:18:30,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-22 18:18:30,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-22 18:18:30,404 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) [2023-11-22 18:18:30,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 18:18:30,935 INFO L93 Difference]: Finished difference Result 1855 states and 2915 transitions. [2023-11-22 18:18:30,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-22 18:18:30,935 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 [2023-11-22 18:18:30,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 18:18:30,943 INFO L225 Difference]: With dead ends: 1855 [2023-11-22 18:18:30,943 INFO L226 Difference]: Without dead ends: 1450 [2023-11-22 18:18:30,945 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-22 18:18:30,946 INFO L413 NwaCegarLoop]: 1438 mSDtfsCounter, 631 mSDsluCounter, 841 mSDsCounter, 0 mSdLazyCounter, 210 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 631 SdHoareTripleChecker+Valid, 2279 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 [2023-11-22 18:18:30,946 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [631 Valid, 2279 Invalid, 214 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 210 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-22 18:18:30,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1450 states. [2023-11-22 18:18:30,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1450 to 1025. [2023-11-22 18:18:30,977 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) [2023-11-22 18:18:30,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1025 states to 1025 states and 1604 transitions. [2023-11-22 18:18:30,982 INFO L78 Accepts]: Start accepts. Automaton has 1025 states and 1604 transitions. Word has length 23 [2023-11-22 18:18:30,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 18:18:30,982 INFO L495 AbstractCegarLoop]: Abstraction has 1025 states and 1604 transitions. [2023-11-22 18:18:30,982 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) [2023-11-22 18:18:30,982 INFO L276 IsEmpty]: Start isEmpty. Operand 1025 states and 1604 transitions. [2023-11-22 18:18:30,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-11-22 18:18:30,984 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 18:18:30,984 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] [2023-11-22 18:18:30,984 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-22 18:18:30,984 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 18:18:30,985 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 18:18:30,985 INFO L85 PathProgramCache]: Analyzing trace with hash 2091943995, now seen corresponding path program 1 times [2023-11-22 18:18:30,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 18:18:30,985 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1315271241] [2023-11-22 18:18:30,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 18:18:30,985 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 18:18:31,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:18:31,132 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-22 18:18:31,133 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 18:18:31,133 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1315271241] [2023-11-22 18:18:31,133 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1315271241] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 18:18:31,133 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-22 18:18:31,133 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-22 18:18:31,133 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1399987260] [2023-11-22 18:18:31,134 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 18:18:31,134 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-22 18:18:31,134 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 18:18:31,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-22 18:18:31,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-22 18:18:31,135 INFO L87 Difference]: Start difference. First operand 1025 states and 1604 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) [2023-11-22 18:18:32,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 18:18:32,200 INFO L93 Difference]: Finished difference Result 1821 states and 2870 transitions. [2023-11-22 18:18:32,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-22 18:18:32,201 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 [2023-11-22 18:18:32,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 18:18:32,205 INFO L225 Difference]: With dead ends: 1821 [2023-11-22 18:18:32,206 INFO L226 Difference]: Without dead ends: 1167 [2023-11-22 18:18:32,207 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-22 18:18:32,208 INFO L413 NwaCegarLoop]: 1144 mSDtfsCounter, 1549 mSDsluCounter, 299 mSDsCounter, 0 mSdLazyCounter, 291 mSolverCounterSat, 315 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1551 SdHoareTripleChecker+Valid, 1443 SdHoareTripleChecker+Invalid, 606 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 315 IncrementalHoareTripleChecker+Valid, 291 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-11-22 18:18:32,209 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1551 Valid, 1443 Invalid, 606 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [315 Valid, 291 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-11-22 18:18:32,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1167 states. [2023-11-22 18:18:32,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1167 to 1019. [2023-11-22 18:18:32,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1019 states, 797 states have (on average 1.5156838143036386) internal successors, (1208), 799 states have internal predecessors, (1208), 169 states have call successors, (169), 51 states have call predecessors, (169), 52 states have return successors, (215), 170 states have call predecessors, (215), 157 states have call successors, (215) [2023-11-22 18:18:32,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1019 states to 1019 states and 1592 transitions. [2023-11-22 18:18:32,247 INFO L78 Accepts]: Start accepts. Automaton has 1019 states and 1592 transitions. Word has length 24 [2023-11-22 18:18:32,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 18:18:32,247 INFO L495 AbstractCegarLoop]: Abstraction has 1019 states and 1592 transitions. [2023-11-22 18:18:32,248 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) [2023-11-22 18:18:32,248 INFO L276 IsEmpty]: Start isEmpty. Operand 1019 states and 1592 transitions. [2023-11-22 18:18:32,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-11-22 18:18:32,249 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 18:18:32,249 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] [2023-11-22 18:18:32,249 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-22 18:18:32,249 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 18:18:32,249 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 18:18:32,250 INFO L85 PathProgramCache]: Analyzing trace with hash 435606981, now seen corresponding path program 1 times [2023-11-22 18:18:32,250 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 18:18:32,250 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1581978893] [2023-11-22 18:18:32,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 18:18:32,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 18:18:32,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:18:32,311 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-22 18:18:32,312 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 18:18:32,312 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1581978893] [2023-11-22 18:18:32,312 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1581978893] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 18:18:32,312 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-22 18:18:32,312 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-22 18:18:32,313 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1146908942] [2023-11-22 18:18:32,313 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 18:18:32,313 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-22 18:18:32,313 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 18:18:32,314 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-22 18:18:32,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-22 18:18:32,314 INFO L87 Difference]: Start difference. First operand 1019 states and 1592 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) [2023-11-22 18:18:32,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 18:18:32,617 INFO L93 Difference]: Finished difference Result 1041 states and 1624 transitions. [2023-11-22 18:18:32,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-22 18:18:32,618 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 [2023-11-22 18:18:32,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 18:18:32,622 INFO L225 Difference]: With dead ends: 1041 [2023-11-22 18:18:32,622 INFO L226 Difference]: Without dead ends: 1037 [2023-11-22 18:18:32,622 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-22 18:18:32,623 INFO L413 NwaCegarLoop]: 884 mSDtfsCounter, 74 mSDsluCounter, 823 mSDsCounter, 0 mSdLazyCounter, 162 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s 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 [2023-11-22 18:18:32,623 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] [2023-11-22 18:18:32,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1037 states. [2023-11-22 18:18:32,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1037 to 1016. [2023-11-22 18:18:32,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1016 states, 795 states have (on average 1.5169811320754718) internal successors, (1206), 795 states have internal predecessors, (1206), 168 states have call successors, (168), 51 states have call predecessors, (168), 52 states have return successors, (214), 169 states have call predecessors, (214), 156 states have call successors, (214) [2023-11-22 18:18:32,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1016 states to 1016 states and 1588 transitions. [2023-11-22 18:18:32,659 INFO L78 Accepts]: Start accepts. Automaton has 1016 states and 1588 transitions. Word has length 23 [2023-11-22 18:18:32,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 18:18:32,659 INFO L495 AbstractCegarLoop]: Abstraction has 1016 states and 1588 transitions. [2023-11-22 18:18:32,659 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) [2023-11-22 18:18:32,659 INFO L276 IsEmpty]: Start isEmpty. Operand 1016 states and 1588 transitions. [2023-11-22 18:18:32,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-11-22 18:18:32,660 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 18:18:32,660 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] [2023-11-22 18:18:32,661 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-22 18:18:32,661 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 18:18:32,661 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 18:18:32,661 INFO L85 PathProgramCache]: Analyzing trace with hash 371679222, now seen corresponding path program 1 times [2023-11-22 18:18:32,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 18:18:32,661 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1755403241] [2023-11-22 18:18:32,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 18:18:32,662 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 18:18:32,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:18:32,742 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-22 18:18:32,743 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 18:18:32,743 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1755403241] [2023-11-22 18:18:32,743 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1755403241] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 18:18:32,743 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-22 18:18:32,743 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-22 18:18:32,743 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [793968762] [2023-11-22 18:18:32,744 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 18:18:32,744 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-22 18:18:32,744 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 18:18:32,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-22 18:18:32,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-22 18:18:32,744 INFO L87 Difference]: Start difference. First operand 1016 states and 1588 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) [2023-11-22 18:18:33,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 18:18:33,072 INFO L93 Difference]: Finished difference Result 1603 states and 2463 transitions. [2023-11-22 18:18:33,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-22 18:18:33,072 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 [2023-11-22 18:18:33,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 18:18:33,077 INFO L225 Difference]: With dead ends: 1603 [2023-11-22 18:18:33,077 INFO L226 Difference]: Without dead ends: 1479 [2023-11-22 18:18:33,078 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-22 18:18:33,079 INFO L413 NwaCegarLoop]: 1132 mSDtfsCounter, 856 mSDsluCounter, 388 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 856 SdHoareTripleChecker+Valid, 1520 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-22 18:18:33,079 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [856 Valid, 1520 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-22 18:18:33,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1479 states. [2023-11-22 18:18:33,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1479 to 1447. [2023-11-22 18:18:33,157 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) [2023-11-22 18:18:33,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1447 states to 1447 states and 2237 transitions. [2023-11-22 18:18:33,161 INFO L78 Accepts]: Start accepts. Automaton has 1447 states and 2237 transitions. Word has length 24 [2023-11-22 18:18:33,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 18:18:33,162 INFO L495 AbstractCegarLoop]: Abstraction has 1447 states and 2237 transitions. [2023-11-22 18:18:33,162 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) [2023-11-22 18:18:33,162 INFO L276 IsEmpty]: Start isEmpty. Operand 1447 states and 2237 transitions. [2023-11-22 18:18:33,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-11-22 18:18:33,164 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 18:18:33,164 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] [2023-11-22 18:18:33,164 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-22 18:18:33,165 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 18:18:33,165 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 18:18:33,165 INFO L85 PathProgramCache]: Analyzing trace with hash -2077842551, now seen corresponding path program 1 times [2023-11-22 18:18:33,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 18:18:33,165 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1337425024] [2023-11-22 18:18:33,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 18:18:33,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 18:18:33,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:18:33,268 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-22 18:18:33,268 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 18:18:33,268 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1337425024] [2023-11-22 18:18:33,268 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1337425024] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 18:18:33,268 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-22 18:18:33,268 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-22 18:18:33,269 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1470360928] [2023-11-22 18:18:33,269 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 18:18:33,269 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-22 18:18:33,269 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 18:18:33,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-22 18:18:33,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-22 18:18:33,270 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) [2023-11-22 18:18:34,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 18:18:34,074 INFO L93 Difference]: Finished difference Result 1503 states and 2312 transitions. [2023-11-22 18:18:34,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-22 18:18:34,074 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 [2023-11-22 18:18:34,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 18:18:34,079 INFO L225 Difference]: With dead ends: 1503 [2023-11-22 18:18:34,080 INFO L226 Difference]: Without dead ends: 1464 [2023-11-22 18:18:34,081 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-22 18:18:34,081 INFO L413 NwaCegarLoop]: 855 mSDtfsCounter, 949 mSDsluCounter, 633 mSDsCounter, 0 mSdLazyCounter, 367 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s 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, 0.7s IncrementalHoareTripleChecker+Time [2023-11-22 18:18:34,081 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [949 Valid, 1488 Invalid, 383 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 367 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-22 18:18:34,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1464 states. [2023-11-22 18:18:34,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1464 to 1447. [2023-11-22 18:18:34,127 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) [2023-11-22 18:18:34,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1447 states to 1447 states and 2235 transitions. [2023-11-22 18:18:34,135 INFO L78 Accepts]: Start accepts. Automaton has 1447 states and 2235 transitions. Word has length 30 [2023-11-22 18:18:34,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 18:18:34,135 INFO L495 AbstractCegarLoop]: Abstraction has 1447 states and 2235 transitions. [2023-11-22 18:18:34,135 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) [2023-11-22 18:18:34,135 INFO L276 IsEmpty]: Start isEmpty. Operand 1447 states and 2235 transitions. [2023-11-22 18:18:34,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-22 18:18:34,138 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 18:18:34,138 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] [2023-11-22 18:18:34,138 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-22 18:18:34,138 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 18:18:34,139 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 18:18:34,139 INFO L85 PathProgramCache]: Analyzing trace with hash 267564548, now seen corresponding path program 1 times [2023-11-22 18:18:34,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 18:18:34,139 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1663284592] [2023-11-22 18:18:34,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 18:18:34,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 18:18:34,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:18:34,255 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-22 18:18:34,255 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 18:18:34,255 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1663284592] [2023-11-22 18:18:34,256 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1663284592] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 18:18:34,256 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-22 18:18:34,256 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-22 18:18:34,256 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1796800152] [2023-11-22 18:18:34,256 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 18:18:34,257 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-22 18:18:34,257 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 18:18:34,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-22 18:18:34,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-22 18:18:34,258 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) [2023-11-22 18:18:34,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 18:18:34,933 INFO L93 Difference]: Finished difference Result 1492 states and 2294 transitions. [2023-11-22 18:18:34,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-22 18:18:34,933 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 [2023-11-22 18:18:34,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 18:18:34,938 INFO L225 Difference]: With dead ends: 1492 [2023-11-22 18:18:34,938 INFO L226 Difference]: Without dead ends: 1430 [2023-11-22 18:18:34,939 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-22 18:18:34,940 INFO L413 NwaCegarLoop]: 853 mSDtfsCounter, 928 mSDsluCounter, 633 mSDsCounter, 0 mSdLazyCounter, 348 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s 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, 0.6s IncrementalHoareTripleChecker+Time [2023-11-22 18:18:34,940 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [928 Valid, 1486 Invalid, 356 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 348 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-22 18:18:34,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1430 states. [2023-11-22 18:18:35,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1430 to 1428. [2023-11-22 18:18:35,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1428 states, 1119 states have (on average 1.515638963360143) internal successors, (1696), 1123 states have internal predecessors, (1696), 224 states have call successors, (224), 80 states have call predecessors, (224), 84 states have return successors, (285), 224 states have call predecessors, (285), 216 states have call successors, (285) [2023-11-22 18:18:35,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1428 states to 1428 states and 2205 transitions. [2023-11-22 18:18:35,021 INFO L78 Accepts]: Start accepts. Automaton has 1428 states and 2205 transitions. Word has length 32 [2023-11-22 18:18:35,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 18:18:35,022 INFO L495 AbstractCegarLoop]: Abstraction has 1428 states and 2205 transitions. [2023-11-22 18:18:35,022 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) [2023-11-22 18:18:35,022 INFO L276 IsEmpty]: Start isEmpty. Operand 1428 states and 2205 transitions. [2023-11-22 18:18:35,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-22 18:18:35,023 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 18:18:35,023 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] [2023-11-22 18:18:35,023 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-22 18:18:35,023 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 18:18:35,026 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 18:18:35,027 INFO L85 PathProgramCache]: Analyzing trace with hash -1046997756, now seen corresponding path program 1 times [2023-11-22 18:18:35,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 18:18:35,027 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [915879323] [2023-11-22 18:18:35,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 18:18:35,027 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 18:18:35,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:18:35,155 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-22 18:18:35,155 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 18:18:35,155 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [915879323] [2023-11-22 18:18:35,155 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [915879323] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 18:18:35,155 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-22 18:18:35,156 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-22 18:18:35,156 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [511261545] [2023-11-22 18:18:35,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 18:18:35,156 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-22 18:18:35,156 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 18:18:35,157 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-22 18:18:35,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-22 18:18:35,157 INFO L87 Difference]: Start difference. First operand 1428 states and 2205 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) [2023-11-22 18:18:36,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 18:18:36,034 INFO L93 Difference]: Finished difference Result 1703 states and 2616 transitions. [2023-11-22 18:18:36,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-22 18:18:36,034 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 [2023-11-22 18:18:36,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 18:18:36,040 INFO L225 Difference]: With dead ends: 1703 [2023-11-22 18:18:36,040 INFO L226 Difference]: Without dead ends: 1694 [2023-11-22 18:18:36,040 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-22 18:18:36,041 INFO L413 NwaCegarLoop]: 1136 mSDtfsCounter, 1178 mSDsluCounter, 628 mSDsCounter, 0 mSdLazyCounter, 373 mSolverCounterSat, 83 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1187 SdHoareTripleChecker+Valid, 1764 SdHoareTripleChecker+Invalid, 456 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 83 IncrementalHoareTripleChecker+Valid, 373 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-22 18:18:36,041 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1187 Valid, 1764 Invalid, 456 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [83 Valid, 373 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-22 18:18:36,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1694 states. [2023-11-22 18:18:36,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1694 to 1451. [2023-11-22 18:18:36,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1451 states, 1140 states have (on average 1.5114035087719297) internal successors, (1723), 1145 states have internal predecessors, (1723), 224 states have call successors, (224), 80 states have call predecessors, (224), 86 states have return successors, (287), 225 states have call predecessors, (287), 216 states have call successors, (287) [2023-11-22 18:18:36,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1451 states to 1451 states and 2234 transitions. [2023-11-22 18:18:36,092 INFO L78 Accepts]: Start accepts. Automaton has 1451 states and 2234 transitions. Word has length 32 [2023-11-22 18:18:36,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 18:18:36,093 INFO L495 AbstractCegarLoop]: Abstraction has 1451 states and 2234 transitions. [2023-11-22 18:18:36,093 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) [2023-11-22 18:18:36,093 INFO L276 IsEmpty]: Start isEmpty. Operand 1451 states and 2234 transitions. [2023-11-22 18:18:36,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-22 18:18:36,094 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 18:18:36,094 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] [2023-11-22 18:18:36,094 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-22 18:18:36,094 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 18:18:36,095 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 18:18:36,095 INFO L85 PathProgramCache]: Analyzing trace with hash -1047274586, now seen corresponding path program 1 times [2023-11-22 18:18:36,095 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 18:18:36,095 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [100502122] [2023-11-22 18:18:36,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 18:18:36,095 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 18:18:36,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:18:36,154 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-22 18:18:36,155 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 18:18:36,155 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [100502122] [2023-11-22 18:18:36,155 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [100502122] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 18:18:36,155 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-22 18:18:36,155 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-22 18:18:36,155 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [663716978] [2023-11-22 18:18:36,155 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 18:18:36,156 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-22 18:18:36,156 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 18:18:36,157 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-22 18:18:36,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-22 18:18:36,157 INFO L87 Difference]: Start difference. First operand 1451 states and 2234 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) [2023-11-22 18:18:36,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 18:18:36,440 INFO L93 Difference]: Finished difference Result 2020 states and 3088 transitions. [2023-11-22 18:18:36,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-22 18:18:36,440 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 [2023-11-22 18:18:36,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 18:18:36,448 INFO L225 Difference]: With dead ends: 2020 [2023-11-22 18:18:36,449 INFO L226 Difference]: Without dead ends: 1992 [2023-11-22 18:18:36,449 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-22 18:18:36,450 INFO L413 NwaCegarLoop]: 859 mSDtfsCounter, 902 mSDsluCounter, 339 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 902 SdHoareTripleChecker+Valid, 1198 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-22 18:18:36,450 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [902 Valid, 1198 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-22 18:18:36,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1992 states. [2023-11-22 18:18:36,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1992 to 1975. [2023-11-22 18:18:36,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1975 states, 1553 states have (on average 1.5112685125563425) internal successors, (2347), 1556 states have internal predecessors, (2347), 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) [2023-11-22 18:18:36,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1975 states to 1975 states and 3027 transitions. [2023-11-22 18:18:36,561 INFO L78 Accepts]: Start accepts. Automaton has 1975 states and 3027 transitions. Word has length 32 [2023-11-22 18:18:36,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 18:18:36,561 INFO L495 AbstractCegarLoop]: Abstraction has 1975 states and 3027 transitions. [2023-11-22 18:18:36,561 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) [2023-11-22 18:18:36,561 INFO L276 IsEmpty]: Start isEmpty. Operand 1975 states and 3027 transitions. [2023-11-22 18:18:36,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-22 18:18:36,562 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 18:18:36,562 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] [2023-11-22 18:18:36,563 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-22 18:18:36,563 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 18:18:36,563 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 18:18:36,563 INFO L85 PathProgramCache]: Analyzing trace with hash -1061619495, now seen corresponding path program 1 times [2023-11-22 18:18:36,563 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 18:18:36,563 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1905985130] [2023-11-22 18:18:36,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 18:18:36,564 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 18:18:36,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:18:36,619 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-22 18:18:36,620 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 18:18:36,620 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1905985130] [2023-11-22 18:18:36,620 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1905985130] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 18:18:36,620 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-22 18:18:36,620 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-22 18:18:36,620 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2121155677] [2023-11-22 18:18:36,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 18:18:36,621 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-22 18:18:36,621 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 18:18:36,621 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-22 18:18:36,621 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-22 18:18:36,621 INFO L87 Difference]: Start difference. First operand 1975 states and 3027 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) [2023-11-22 18:18:37,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 18:18:37,018 INFO L93 Difference]: Finished difference Result 2467 states and 3774 transitions. [2023-11-22 18:18:37,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-22 18:18:37,019 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 [2023-11-22 18:18:37,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 18:18:37,027 INFO L225 Difference]: With dead ends: 2467 [2023-11-22 18:18:37,027 INFO L226 Difference]: Without dead ends: 2454 [2023-11-22 18:18:37,028 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-22 18:18:37,029 INFO L413 NwaCegarLoop]: 1153 mSDtfsCounter, 347 mSDsluCounter, 806 mSDsCounter, 0 mSdLazyCounter, 172 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 347 SdHoareTripleChecker+Valid, 1959 SdHoareTripleChecker+Invalid, 175 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 172 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-22 18:18:37,029 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [347 Valid, 1959 Invalid, 175 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 172 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-22 18:18:37,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2454 states. [2023-11-22 18:18:37,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2454 to 1972. [2023-11-22 18:18:37,110 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) [2023-11-22 18:18:37,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1972 states to 1972 states and 3020 transitions. [2023-11-22 18:18:37,114 INFO L78 Accepts]: Start accepts. Automaton has 1972 states and 3020 transitions. Word has length 32 [2023-11-22 18:18:37,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 18:18:37,115 INFO L495 AbstractCegarLoop]: Abstraction has 1972 states and 3020 transitions. [2023-11-22 18:18:37,115 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) [2023-11-22 18:18:37,115 INFO L276 IsEmpty]: Start isEmpty. Operand 1972 states and 3020 transitions. [2023-11-22 18:18:37,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2023-11-22 18:18:37,116 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 18:18:37,117 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] [2023-11-22 18:18:37,117 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-22 18:18:37,117 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 18:18:37,117 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 18:18:37,117 INFO L85 PathProgramCache]: Analyzing trace with hash 1902704730, now seen corresponding path program 1 times [2023-11-22 18:18:37,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 18:18:37,118 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1775906009] [2023-11-22 18:18:37,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 18:18:37,118 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 18:18:37,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:18:37,206 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-22 18:18:37,206 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 18:18:37,207 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1775906009] [2023-11-22 18:18:37,207 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1775906009] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 18:18:37,207 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-22 18:18:37,207 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-22 18:18:37,207 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [47865696] [2023-11-22 18:18:37,207 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 18:18:37,207 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-22 18:18:37,208 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 18:18:37,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-22 18:18:37,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-22 18:18:37,208 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) [2023-11-22 18:18:37,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 18:18:37,699 INFO L93 Difference]: Finished difference Result 1984 states and 3032 transitions. [2023-11-22 18:18:37,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-22 18:18:37,700 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 [2023-11-22 18:18:37,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 18:18:37,709 INFO L225 Difference]: With dead ends: 1984 [2023-11-22 18:18:37,709 INFO L226 Difference]: Without dead ends: 1962 [2023-11-22 18:18:37,711 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 [2023-11-22 18:18:37,712 INFO L413 NwaCegarLoop]: 863 mSDtfsCounter, 1 mSDsluCounter, 1708 mSDsCounter, 0 mSdLazyCounter, 187 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s 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, 0.4s IncrementalHoareTripleChecker+Time [2023-11-22 18:18:37,712 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 2571 Invalid, 187 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 187 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-22 18:18:37,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1962 states. [2023-11-22 18:18:37,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1962 to 1962. [2023-11-22 18:18:37,809 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) [2023-11-22 18:18:37,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1962 states to 1962 states and 3007 transitions. [2023-11-22 18:18:37,813 INFO L78 Accepts]: Start accepts. Automaton has 1962 states and 3007 transitions. Word has length 33 [2023-11-22 18:18:37,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 18:18:37,813 INFO L495 AbstractCegarLoop]: Abstraction has 1962 states and 3007 transitions. [2023-11-22 18:18:37,813 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) [2023-11-22 18:18:37,814 INFO L276 IsEmpty]: Start isEmpty. Operand 1962 states and 3007 transitions. [2023-11-22 18:18:37,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2023-11-22 18:18:37,815 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 18:18:37,815 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-22 18:18:37,815 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-11-22 18:18:37,815 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 18:18:37,816 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 18:18:37,816 INFO L85 PathProgramCache]: Analyzing trace with hash -1597418829, now seen corresponding path program 1 times [2023-11-22 18:18:37,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 18:18:37,816 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1148343044] [2023-11-22 18:18:37,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 18:18:37,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 18:18:37,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:18:37,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-22 18:18:37,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:18:37,991 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-22 18:18:37,991 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 18:18:37,991 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1148343044] [2023-11-22 18:18:37,992 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1148343044] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 18:18:37,992 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-22 18:18:37,992 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-22 18:18:37,992 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [547779148] [2023-11-22 18:18:37,992 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 18:18:37,992 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-22 18:18:37,992 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 18:18:37,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-22 18:18:37,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-22 18:18:37,994 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) [2023-11-22 18:18:40,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 18:18:40,779 INFO L93 Difference]: Finished difference Result 2734 states and 4125 transitions. [2023-11-22 18:18:40,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-22 18:18:40,779 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 [2023-11-22 18:18:40,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 18:18:40,784 INFO L225 Difference]: With dead ends: 2734 [2023-11-22 18:18:40,784 INFO L226 Difference]: Without dead ends: 1220 [2023-11-22 18:18:40,786 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-22 18:18:40,786 INFO L413 NwaCegarLoop]: 874 mSDtfsCounter, 729 mSDsluCounter, 1583 mSDsCounter, 0 mSdLazyCounter, 587 mSolverCounterSat, 260 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 734 SdHoareTripleChecker+Valid, 2457 SdHoareTripleChecker+Invalid, 847 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 260 IncrementalHoareTripleChecker+Valid, 587 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2023-11-22 18:18:40,786 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [734 Valid, 2457 Invalid, 847 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [260 Valid, 587 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2023-11-22 18:18:40,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1220 states. [2023-11-22 18:18:40,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1220 to 1102. [2023-11-22 18:18:40,828 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) [2023-11-22 18:18:40,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1102 states to 1102 states and 1670 transitions. [2023-11-22 18:18:40,831 INFO L78 Accepts]: Start accepts. Automaton has 1102 states and 1670 transitions. Word has length 39 [2023-11-22 18:18:40,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 18:18:40,832 INFO L495 AbstractCegarLoop]: Abstraction has 1102 states and 1670 transitions. [2023-11-22 18:18:40,832 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) [2023-11-22 18:18:40,832 INFO L276 IsEmpty]: Start isEmpty. Operand 1102 states and 1670 transitions. [2023-11-22 18:18:40,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2023-11-22 18:18:40,833 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 18:18:40,833 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-22 18:18:40,833 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-11-22 18:18:40,833 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 18:18:40,834 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 18:18:40,834 INFO L85 PathProgramCache]: Analyzing trace with hash 329787319, now seen corresponding path program 1 times [2023-11-22 18:18:40,834 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 18:18:40,834 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [12236356] [2023-11-22 18:18:40,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 18:18:40,834 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 18:18:40,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:18:40,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-22 18:18:40,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:18:40,982 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-22 18:18:40,983 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 18:18:40,983 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [12236356] [2023-11-22 18:18:40,983 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [12236356] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 18:18:40,983 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-22 18:18:40,983 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-22 18:18:40,983 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [836699144] [2023-11-22 18:18:40,983 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 18:18:40,984 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-22 18:18:40,984 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 18:18:40,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-22 18:18:40,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-22 18:18:40,985 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) [2023-11-22 18:18:42,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 18:18:42,708 INFO L93 Difference]: Finished difference Result 1682 states and 2540 transitions. [2023-11-22 18:18:42,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-22 18:18:42,709 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 [2023-11-22 18:18:42,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 18:18:42,712 INFO L225 Difference]: With dead ends: 1682 [2023-11-22 18:18:42,712 INFO L226 Difference]: Without dead ends: 1077 [2023-11-22 18:18:42,714 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-22 18:18:42,714 INFO L413 NwaCegarLoop]: 785 mSDtfsCounter, 906 mSDsluCounter, 489 mSDsCounter, 0 mSdLazyCounter, 316 mSolverCounterSat, 135 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 988 SdHoareTripleChecker+Valid, 1274 SdHoareTripleChecker+Invalid, 451 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 135 IncrementalHoareTripleChecker+Valid, 316 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-11-22 18:18:42,714 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [988 Valid, 1274 Invalid, 451 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [135 Valid, 316 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-11-22 18:18:42,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1077 states. [2023-11-22 18:18:42,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1077 to 1045. [2023-11-22 18:18:42,757 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) [2023-11-22 18:18:42,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1045 states to 1045 states and 1582 transitions. [2023-11-22 18:18:42,759 INFO L78 Accepts]: Start accepts. Automaton has 1045 states and 1582 transitions. Word has length 40 [2023-11-22 18:18:42,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 18:18:42,760 INFO L495 AbstractCegarLoop]: Abstraction has 1045 states and 1582 transitions. [2023-11-22 18:18:42,760 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) [2023-11-22 18:18:42,760 INFO L276 IsEmpty]: Start isEmpty. Operand 1045 states and 1582 transitions. [2023-11-22 18:18:42,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2023-11-22 18:18:42,761 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 18:18:42,761 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] [2023-11-22 18:18:42,761 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-11-22 18:18:42,762 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 18:18:42,762 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 18:18:42,762 INFO L85 PathProgramCache]: Analyzing trace with hash -468593426, now seen corresponding path program 1 times [2023-11-22 18:18:42,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 18:18:42,762 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1230429165] [2023-11-22 18:18:42,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 18:18:42,763 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 18:18:42,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:18:42,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-22 18:18:42,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:18:42,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-11-22 18:18:42,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:18:42,840 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-22 18:18:42,840 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 18:18:42,840 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1230429165] [2023-11-22 18:18:42,842 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1230429165] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 18:18:42,842 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-22 18:18:42,842 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-22 18:18:42,842 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1533423808] [2023-11-22 18:18:42,842 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 18:18:42,843 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-22 18:18:42,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 18:18:42,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-22 18:18:42,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-22 18:18:42,843 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) [2023-11-22 18:18:45,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 18:18:45,251 INFO L93 Difference]: Finished difference Result 1109 states and 1691 transitions. [2023-11-22 18:18:45,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-22 18:18:45,252 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 [2023-11-22 18:18:45,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 18:18:45,255 INFO L225 Difference]: With dead ends: 1109 [2023-11-22 18:18:45,255 INFO L226 Difference]: Without dead ends: 1082 [2023-11-22 18:18:45,256 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 [2023-11-22 18:18:45,256 INFO L413 NwaCegarLoop]: 775 mSDtfsCounter, 308 mSDsluCounter, 1717 mSDsCounter, 0 mSdLazyCounter, 615 mSolverCounterSat, 237 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 316 SdHoareTripleChecker+Valid, 2492 SdHoareTripleChecker+Invalid, 852 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 237 IncrementalHoareTripleChecker+Valid, 615 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2023-11-22 18:18:45,257 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [316 Valid, 2492 Invalid, 852 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [237 Valid, 615 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2023-11-22 18:18:45,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1082 states. [2023-11-22 18:18:45,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1082 to 1017. [2023-11-22 18:18:45,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1017 states, 797 states have (on average 1.4905897114178168) internal successors, (1188), 804 states have internal predecessors, (1188), 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) [2023-11-22 18:18:45,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1017 states to 1017 states and 1556 transitions. [2023-11-22 18:18:45,335 INFO L78 Accepts]: Start accepts. Automaton has 1017 states and 1556 transitions. Word has length 41 [2023-11-22 18:18:45,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 18:18:45,336 INFO L495 AbstractCegarLoop]: Abstraction has 1017 states and 1556 transitions. [2023-11-22 18:18:45,336 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) [2023-11-22 18:18:45,337 INFO L276 IsEmpty]: Start isEmpty. Operand 1017 states and 1556 transitions. [2023-11-22 18:18:45,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2023-11-22 18:18:45,338 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 18:18:45,338 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] [2023-11-22 18:18:45,338 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-11-22 18:18:45,338 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 18:18:45,338 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 18:18:45,339 INFO L85 PathProgramCache]: Analyzing trace with hash -1286241876, now seen corresponding path program 1 times [2023-11-22 18:18:45,339 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 18:18:45,339 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [136057602] [2023-11-22 18:18:45,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 18:18:45,339 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 18:18:45,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:18:45,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-22 18:18:45,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:18:45,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-11-22 18:18:45,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:18:45,418 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-22 18:18:45,418 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 18:18:45,418 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [136057602] [2023-11-22 18:18:45,418 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [136057602] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 18:18:45,418 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-22 18:18:45,419 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-22 18:18:45,419 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [954948429] [2023-11-22 18:18:45,419 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 18:18:45,419 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-22 18:18:45,419 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 18:18:45,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-22 18:18:45,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-22 18:18:45,420 INFO L87 Difference]: Start difference. First operand 1017 states and 1556 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) [2023-11-22 18:18:47,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 18:18:47,334 INFO L93 Difference]: Finished difference Result 1052 states and 1608 transitions. [2023-11-22 18:18:47,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-22 18:18:47,334 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 [2023-11-22 18:18:47,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 18:18:47,338 INFO L225 Difference]: With dead ends: 1052 [2023-11-22 18:18:47,338 INFO L226 Difference]: Without dead ends: 1045 [2023-11-22 18:18:47,338 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 [2023-11-22 18:18:47,338 INFO L413 NwaCegarLoop]: 771 mSDtfsCounter, 281 mSDsluCounter, 1755 mSDsCounter, 0 mSdLazyCounter, 619 mSolverCounterSat, 225 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 282 SdHoareTripleChecker+Valid, 2526 SdHoareTripleChecker+Invalid, 844 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 225 IncrementalHoareTripleChecker+Valid, 619 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2023-11-22 18:18:47,339 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [282 Valid, 2526 Invalid, 844 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [225 Valid, 619 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2023-11-22 18:18:47,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1045 states. [2023-11-22 18:18:47,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1045 to 1028. [2023-11-22 18:18:47,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1028 states, 808 states have (on average 1.4863861386138615) internal successors, (1201), 815 states have internal predecessors, (1201), 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) [2023-11-22 18:18:47,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1028 states to 1028 states and 1569 transitions. [2023-11-22 18:18:47,383 INFO L78 Accepts]: Start accepts. Automaton has 1028 states and 1569 transitions. Word has length 41 [2023-11-22 18:18:47,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 18:18:47,383 INFO L495 AbstractCegarLoop]: Abstraction has 1028 states and 1569 transitions. [2023-11-22 18:18:47,383 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) [2023-11-22 18:18:47,383 INFO L276 IsEmpty]: Start isEmpty. Operand 1028 states and 1569 transitions. [2023-11-22 18:18:47,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2023-11-22 18:18:47,385 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 18:18:47,385 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] [2023-11-22 18:18:47,385 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-11-22 18:18:47,385 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 18:18:47,385 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 18:18:47,385 INFO L85 PathProgramCache]: Analyzing trace with hash -1210019960, now seen corresponding path program 1 times [2023-11-22 18:18:47,386 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 18:18:47,386 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2097829773] [2023-11-22 18:18:47,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 18:18:47,386 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 18:18:47,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:18:47,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-22 18:18:47,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:18:47,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-11-22 18:18:47,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:18:47,564 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-22 18:18:47,564 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 18:18:47,564 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2097829773] [2023-11-22 18:18:47,564 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2097829773] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 18:18:47,564 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-22 18:18:47,564 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-22 18:18:47,565 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [585073223] [2023-11-22 18:18:47,565 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 18:18:47,565 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-22 18:18:47,565 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 18:18:47,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-22 18:18:47,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-22 18:18:47,566 INFO L87 Difference]: Start difference. First operand 1028 states and 1569 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) [2023-11-22 18:18:51,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 18:18:51,031 INFO L93 Difference]: Finished difference Result 1052 states and 1604 transitions. [2023-11-22 18:18:51,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-22 18:18:51,032 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 [2023-11-22 18:18:51,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 18:18:51,035 INFO L225 Difference]: With dead ends: 1052 [2023-11-22 18:18:51,035 INFO L226 Difference]: Without dead ends: 1047 [2023-11-22 18:18:51,036 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 [2023-11-22 18:18:51,036 INFO L413 NwaCegarLoop]: 769 mSDtfsCounter, 1118 mSDsluCounter, 2236 mSDsCounter, 0 mSdLazyCounter, 1032 mSolverCounterSat, 267 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1208 SdHoareTripleChecker+Valid, 3005 SdHoareTripleChecker+Invalid, 1299 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 267 IncrementalHoareTripleChecker+Valid, 1032 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2023-11-22 18:18:51,036 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1208 Valid, 3005 Invalid, 1299 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [267 Valid, 1032 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2023-11-22 18:18:51,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1047 states. [2023-11-22 18:18:51,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1047 to 1028. [2023-11-22 18:18:51,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1028 states, 808 states have (on average 1.4851485148514851) internal successors, (1200), 815 states have internal predecessors, (1200), 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) [2023-11-22 18:18:51,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1028 states to 1028 states and 1568 transitions. [2023-11-22 18:18:51,083 INFO L78 Accepts]: Start accepts. Automaton has 1028 states and 1568 transitions. Word has length 42 [2023-11-22 18:18:51,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 18:18:51,083 INFO L495 AbstractCegarLoop]: Abstraction has 1028 states and 1568 transitions. [2023-11-22 18:18:51,083 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) [2023-11-22 18:18:51,084 INFO L276 IsEmpty]: Start isEmpty. Operand 1028 states and 1568 transitions. [2023-11-22 18:18:51,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2023-11-22 18:18:51,085 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 18:18:51,085 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] [2023-11-22 18:18:51,085 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-11-22 18:18:51,085 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 18:18:51,085 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 18:18:51,086 INFO L85 PathProgramCache]: Analyzing trace with hash 868589870, now seen corresponding path program 1 times [2023-11-22 18:18:51,086 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 18:18:51,086 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [225719553] [2023-11-22 18:18:51,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 18:18:51,086 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 18:18:51,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:18:51,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-22 18:18:51,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:18:51,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-11-22 18:18:51,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:18:51,202 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-22 18:18:51,203 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 18:18:51,203 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [225719553] [2023-11-22 18:18:51,203 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [225719553] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 18:18:51,203 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-22 18:18:51,203 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-22 18:18:51,203 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [974192818] [2023-11-22 18:18:51,203 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 18:18:51,205 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-22 18:18:51,205 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 18:18:51,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-22 18:18:51,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-22 18:18:51,205 INFO L87 Difference]: Start difference. First operand 1028 states and 1568 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) [2023-11-22 18:18:53,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 18:18:53,515 INFO L93 Difference]: Finished difference Result 2072 states and 3168 transitions. [2023-11-22 18:18:53,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-22 18:18:53,515 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 [2023-11-22 18:18:53,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 18:18:53,519 INFO L225 Difference]: With dead ends: 2072 [2023-11-22 18:18:53,519 INFO L226 Difference]: Without dead ends: 1046 [2023-11-22 18:18:53,523 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 [2023-11-22 18:18:53,524 INFO L413 NwaCegarLoop]: 776 mSDtfsCounter, 255 mSDsluCounter, 1810 mSDsCounter, 0 mSdLazyCounter, 576 mSolverCounterSat, 222 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 256 SdHoareTripleChecker+Valid, 2586 SdHoareTripleChecker+Invalid, 798 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 222 IncrementalHoareTripleChecker+Valid, 576 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2023-11-22 18:18:53,524 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [256 Valid, 2586 Invalid, 798 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [222 Valid, 576 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2023-11-22 18:18:53,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1046 states. [2023-11-22 18:18:53,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1046 to 1031. [2023-11-22 18:18:53,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1031 states, 811 states have (on average 1.4833538840937115) internal successors, (1203), 818 states have internal predecessors, (1203), 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) [2023-11-22 18:18:53,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1031 states to 1031 states and 1571 transitions. [2023-11-22 18:18:53,571 INFO L78 Accepts]: Start accepts. Automaton has 1031 states and 1571 transitions. Word has length 43 [2023-11-22 18:18:53,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 18:18:53,571 INFO L495 AbstractCegarLoop]: Abstraction has 1031 states and 1571 transitions. [2023-11-22 18:18:53,571 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) [2023-11-22 18:18:53,571 INFO L276 IsEmpty]: Start isEmpty. Operand 1031 states and 1571 transitions. [2023-11-22 18:18:53,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2023-11-22 18:18:53,573 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 18:18:53,573 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-22 18:18:53,573 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-11-22 18:18:53,573 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 18:18:53,573 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 18:18:53,573 INFO L85 PathProgramCache]: Analyzing trace with hash 28962615, now seen corresponding path program 1 times [2023-11-22 18:18:53,574 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 18:18:53,574 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1417364371] [2023-11-22 18:18:53,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 18:18:53,574 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 18:18:53,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:18:53,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-22 18:18:53,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:18:53,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-11-22 18:18:53,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:18:53,725 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-22 18:18:53,725 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 18:18:53,725 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1417364371] [2023-11-22 18:18:53,725 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1417364371] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-22 18:18:53,726 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [243052631] [2023-11-22 18:18:53,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 18:18:53,726 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-22 18:18:53,726 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-22 18:18:53,727 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) [2023-11-22 18:18:53,728 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-22 18:18:54,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:18:54,235 INFO L262 TraceCheckSpWp]: Trace formula consists of 623 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-22 18:18:54,244 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-22 18:18:54,299 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-22 18:18:54,299 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-22 18:18:54,332 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-22 18:18:54,332 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [243052631] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-22 18:18:54,333 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-22 18:18:54,333 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 4, 4] total 9 [2023-11-22 18:18:54,333 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1157163334] [2023-11-22 18:18:54,333 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-22 18:18:54,333 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-22 18:18:54,333 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 18:18:54,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-22 18:18:54,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2023-11-22 18:18:54,334 INFO L87 Difference]: Start difference. First operand 1031 states and 1571 transitions. Second operand has 9 states, 9 states have (on average 6.777777777777778) internal successors, (61), 7 states have internal predecessors, (61), 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) [2023-11-22 18:18:57,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 18:18:57,628 INFO L93 Difference]: Finished difference Result 2079 states and 3177 transitions. [2023-11-22 18:18:57,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-22 18:18:57,629 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.777777777777778) internal successors, (61), 7 states have internal predecessors, (61), 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 [2023-11-22 18:18:57,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 18:18:57,643 INFO L225 Difference]: With dead ends: 2079 [2023-11-22 18:18:57,643 INFO L226 Difference]: Without dead ends: 1051 [2023-11-22 18:18:57,646 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2023-11-22 18:18:57,646 INFO L413 NwaCegarLoop]: 774 mSDtfsCounter, 259 mSDsluCounter, 3966 mSDsCounter, 0 mSdLazyCounter, 1129 mSolverCounterSat, 232 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 260 SdHoareTripleChecker+Valid, 4740 SdHoareTripleChecker+Invalid, 1361 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 232 IncrementalHoareTripleChecker+Valid, 1129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2023-11-22 18:18:57,647 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [260 Valid, 4740 Invalid, 1361 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [232 Valid, 1129 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2023-11-22 18:18:57,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1051 states. [2023-11-22 18:18:57,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1051 to 1036. [2023-11-22 18:18:57,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1036 states, 816 states have (on average 1.4803921568627452) internal successors, (1208), 823 states have internal predecessors, (1208), 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) [2023-11-22 18:18:57,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1036 states to 1036 states and 1576 transitions. [2023-11-22 18:18:57,705 INFO L78 Accepts]: Start accepts. Automaton has 1036 states and 1576 transitions. Word has length 46 [2023-11-22 18:18:57,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 18:18:57,705 INFO L495 AbstractCegarLoop]: Abstraction has 1036 states and 1576 transitions. [2023-11-22 18:18:57,705 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.777777777777778) internal successors, (61), 7 states have internal predecessors, (61), 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) [2023-11-22 18:18:57,706 INFO L276 IsEmpty]: Start isEmpty. Operand 1036 states and 1576 transitions. [2023-11-22 18:18:57,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2023-11-22 18:18:57,707 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 18:18:57,707 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] [2023-11-22 18:18:57,720 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-22 18:18:57,920 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 [2023-11-22 18:18:57,920 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 18:18:57,921 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 18:18:57,921 INFO L85 PathProgramCache]: Analyzing trace with hash -715326418, now seen corresponding path program 2 times [2023-11-22 18:18:57,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 18:18:57,921 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1288068493] [2023-11-22 18:18:57,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 18:18:57,922 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 18:18:57,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:18:58,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-11-22 18:18:58,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:18:58,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-22 18:18:58,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:18:58,107 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-11-22 18:18:58,107 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 18:18:58,107 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1288068493] [2023-11-22 18:18:58,107 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1288068493] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-22 18:18:58,107 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [566817758] [2023-11-22 18:18:58,108 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-22 18:18:58,108 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-22 18:18:58,108 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-22 18:18:58,109 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) [2023-11-22 18:18:58,136 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-22 18:18:58,571 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-22 18:18:58,571 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-22 18:18:58,574 INFO L262 TraceCheckSpWp]: Trace formula consists of 572 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-22 18:18:58,577 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-22 18:18:58,598 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-22 18:18:58,599 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-22 18:18:58,599 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [566817758] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 18:18:58,599 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-22 18:18:58,599 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 9 [2023-11-22 18:18:58,601 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1307288405] [2023-11-22 18:18:58,601 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 18:18:58,601 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-22 18:18:58,601 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 18:18:58,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-22 18:18:58,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2023-11-22 18:18:58,602 INFO L87 Difference]: Start difference. First operand 1036 states and 1576 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) [2023-11-22 18:18:58,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 18:18:58,978 INFO L93 Difference]: Finished difference Result 1799 states and 2768 transitions. [2023-11-22 18:18:58,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-22 18:18:58,979 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 [2023-11-22 18:18:58,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 18:18:58,989 INFO L225 Difference]: With dead ends: 1799 [2023-11-22 18:18:58,989 INFO L226 Difference]: Without dead ends: 1041 [2023-11-22 18:18:58,991 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 [2023-11-22 18:18:58,991 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, 0.3s IncrementalHoareTripleChecker+Time [2023-11-22 18:18:58,992 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 2520 Invalid, 165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 161 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-22 18:18:58,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1041 states. [2023-11-22 18:18:59,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1041 to 1041. [2023-11-22 18:18:59,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1041 states, 821 states have (on average 1.477466504263094) internal successors, (1213), 828 states have internal predecessors, (1213), 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) [2023-11-22 18:18:59,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1041 states to 1041 states and 1581 transitions. [2023-11-22 18:18:59,062 INFO L78 Accepts]: Start accepts. Automaton has 1041 states and 1581 transitions. Word has length 51 [2023-11-22 18:18:59,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 18:18:59,062 INFO L495 AbstractCegarLoop]: Abstraction has 1041 states and 1581 transitions. [2023-11-22 18:18:59,063 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) [2023-11-22 18:18:59,063 INFO L276 IsEmpty]: Start isEmpty. Operand 1041 states and 1581 transitions. [2023-11-22 18:18:59,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2023-11-22 18:18:59,064 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 18:18:59,064 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] [2023-11-22 18:18:59,087 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-11-22 18:18:59,277 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 [2023-11-22 18:18:59,277 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 18:18:59,278 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 18:18:59,278 INFO L85 PathProgramCache]: Analyzing trace with hash -1044020016, now seen corresponding path program 1 times [2023-11-22 18:18:59,278 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 18:18:59,278 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1311142705] [2023-11-22 18:18:59,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 18:18:59,278 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 18:18:59,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:18:59,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-11-22 18:18:59,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:18:59,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-22 18:18:59,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:18:59,467 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-11-22 18:18:59,468 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 18:18:59,468 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1311142705] [2023-11-22 18:18:59,469 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1311142705] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-22 18:18:59,469 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1782072494] [2023-11-22 18:18:59,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 18:18:59,469 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-22 18:18:59,469 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-22 18:18:59,470 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) [2023-11-22 18:18:59,496 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-22 18:18:59,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:18:59,951 INFO L262 TraceCheckSpWp]: Trace formula consists of 723 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-22 18:18:59,953 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-22 18:18:59,963 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-11-22 18:18:59,963 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-22 18:18:59,997 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-11-22 18:18:59,997 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1782072494] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-22 18:18:59,998 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-22 18:18:59,998 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 4, 5] total 11 [2023-11-22 18:18:59,998 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [729138798] [2023-11-22 18:18:59,998 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-22 18:18:59,998 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-22 18:18:59,999 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 18:18:59,999 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-22 18:18:59,999 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2023-11-22 18:18:59,999 INFO L87 Difference]: Start difference. First operand 1041 states and 1581 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) [2023-11-22 18:19:03,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 18:19:03,905 INFO L93 Difference]: Finished difference Result 2090 states and 3182 transitions. [2023-11-22 18:19:03,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-22 18:19:03,906 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 [2023-11-22 18:19:03,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 18:19:03,908 INFO L225 Difference]: With dead ends: 2090 [2023-11-22 18:19:03,908 INFO L226 Difference]: Without dead ends: 1053 [2023-11-22 18:19:03,910 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 [2023-11-22 18:19:03,910 INFO L413 NwaCegarLoop]: 775 mSDtfsCounter, 256 mSDsluCounter, 4688 mSDsCounter, 0 mSdLazyCounter, 1333 mSolverCounterSat, 246 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 257 SdHoareTripleChecker+Valid, 5463 SdHoareTripleChecker+Invalid, 1579 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 246 IncrementalHoareTripleChecker+Valid, 1333 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2023-11-22 18:19:03,911 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [257 Valid, 5463 Invalid, 1579 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [246 Valid, 1333 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2023-11-22 18:19:03,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1053 states. [2023-11-22 18:19:03,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1053 to 1048. [2023-11-22 18:19:03,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1048 states, 828 states have (on average 1.4734299516908214) internal successors, (1220), 835 states have internal predecessors, (1220), 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) [2023-11-22 18:19:03,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1048 states to 1048 states and 1588 transitions. [2023-11-22 18:19:03,960 INFO L78 Accepts]: Start accepts. Automaton has 1048 states and 1588 transitions. Word has length 52 [2023-11-22 18:19:03,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 18:19:03,961 INFO L495 AbstractCegarLoop]: Abstraction has 1048 states and 1588 transitions. [2023-11-22 18:19:03,961 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) [2023-11-22 18:19:03,961 INFO L276 IsEmpty]: Start isEmpty. Operand 1048 states and 1588 transitions. [2023-11-22 18:19:03,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2023-11-22 18:19:03,962 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 18:19:03,962 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] [2023-11-22 18:19:03,976 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-22 18:19:04,177 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-22 18:19:04,178 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 18:19:04,178 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 18:19:04,178 INFO L85 PathProgramCache]: Analyzing trace with hash -614709210, now seen corresponding path program 2 times [2023-11-22 18:19:04,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 18:19:04,178 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [89872924] [2023-11-22 18:19:04,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 18:19:04,179 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 18:19:04,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:19:04,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-22 18:19:04,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:19:04,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-11-22 18:19:04,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:19:04,490 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-11-22 18:19:04,491 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 18:19:04,491 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [89872924] [2023-11-22 18:19:04,491 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [89872924] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-22 18:19:04,491 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [425850429] [2023-11-22 18:19:04,491 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-22 18:19:04,491 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-22 18:19:04,491 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-22 18:19:04,492 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) [2023-11-22 18:19:04,518 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-22 18:19:05,096 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-22 18:19:05,097 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-22 18:19:05,101 INFO L262 TraceCheckSpWp]: Trace formula consists of 842 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-22 18:19:05,103 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-22 18:19:05,110 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2023-11-22 18:19:05,110 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-22 18:19:05,173 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2023-11-22 18:19:05,173 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [425850429] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-22 18:19:05,173 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-22 18:19:05,173 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 6, 6] total 15 [2023-11-22 18:19:05,173 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [838760549] [2023-11-22 18:19:05,173 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-22 18:19:05,174 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-11-22 18:19:05,174 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 18:19:05,174 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-11-22 18:19:05,174 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2023-11-22 18:19:05,175 INFO L87 Difference]: Start difference. First operand 1048 states and 1588 transitions. Second operand has 15 states, 15 states have (on average 4.533333333333333) internal successors, (68), 13 states have internal predecessors, (68), 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) [2023-11-22 18:19:10,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 18:19:10,089 INFO L93 Difference]: Finished difference Result 2111 states and 3214 transitions. [2023-11-22 18:19:10,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-11-22 18:19:10,090 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 4.533333333333333) internal successors, (68), 13 states have internal predecessors, (68), 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 [2023-11-22 18:19:10,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 18:19:10,093 INFO L225 Difference]: With dead ends: 2111 [2023-11-22 18:19:10,093 INFO L226 Difference]: Without dead ends: 1071 [2023-11-22 18:19:10,095 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 [2023-11-22 18:19:10,095 INFO L413 NwaCegarLoop]: 776 mSDtfsCounter, 253 mSDsluCounter, 6850 mSDsCounter, 0 mSdLazyCounter, 1980 mSolverCounterSat, 270 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 254 SdHoareTripleChecker+Valid, 7626 SdHoareTripleChecker+Invalid, 2250 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 270 IncrementalHoareTripleChecker+Valid, 1980 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2023-11-22 18:19:10,095 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [254 Valid, 7626 Invalid, 2250 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [270 Valid, 1980 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2023-11-22 18:19:10,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1071 states. [2023-11-22 18:19:10,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1071 to 1066. [2023-11-22 18:19:10,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1066 states, 846 states have (on average 1.4633569739952719) internal successors, (1238), 853 states have internal predecessors, (1238), 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) [2023-11-22 18:19:10,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1066 states to 1066 states and 1606 transitions. [2023-11-22 18:19:10,150 INFO L78 Accepts]: Start accepts. Automaton has 1066 states and 1606 transitions. Word has length 59 [2023-11-22 18:19:10,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 18:19:10,150 INFO L495 AbstractCegarLoop]: Abstraction has 1066 states and 1606 transitions. [2023-11-22 18:19:10,150 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 4.533333333333333) internal successors, (68), 13 states have internal predecessors, (68), 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) [2023-11-22 18:19:10,151 INFO L276 IsEmpty]: Start isEmpty. Operand 1066 states and 1606 transitions. [2023-11-22 18:19:10,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2023-11-22 18:19:10,152 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 18:19:10,152 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] [2023-11-22 18:19:10,167 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-22 18:19:10,366 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-22 18:19:10,366 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 18:19:10,367 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 18:19:10,367 INFO L85 PathProgramCache]: Analyzing trace with hash -1975220217, now seen corresponding path program 3 times [2023-11-22 18:19:10,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 18:19:10,367 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1514709809] [2023-11-22 18:19:10,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 18:19:10,367 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 18:19:10,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:19:10,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-11-22 18:19:10,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:19:10,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-22 18:19:10,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:19:10,912 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 133 trivial. 0 not checked. [2023-11-22 18:19:10,912 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 18:19:10,912 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1514709809] [2023-11-22 18:19:10,912 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1514709809] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-22 18:19:10,912 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [191199230] [2023-11-22 18:19:10,912 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-22 18:19:10,912 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-22 18:19:10,913 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-22 18:19:10,913 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) [2023-11-22 18:19:10,916 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-22 18:19:11,497 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-11-22 18:19:11,497 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-22 18:19:11,501 INFO L262 TraceCheckSpWp]: Trace formula consists of 689 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-22 18:19:11,503 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-22 18:19:11,554 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 198 trivial. 0 not checked. [2023-11-22 18:19:11,554 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-22 18:19:11,621 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 198 trivial. 0 not checked. [2023-11-22 18:19:11,621 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [191199230] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-22 18:19:11,621 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-22 18:19:11,621 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 5, 5] total 22 [2023-11-22 18:19:11,621 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1068975229] [2023-11-22 18:19:11,622 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-22 18:19:11,622 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2023-11-22 18:19:11,622 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 18:19:11,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2023-11-22 18:19:11,622 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=401, Unknown=0, NotChecked=0, Total=462 [2023-11-22 18:19:11,623 INFO L87 Difference]: Start difference. First operand 1066 states and 1606 transitions. Second operand has 22 states, 20 states have (on average 3.95) internal successors, (79), 20 states have internal predecessors, (79), 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) [2023-11-22 18:19:17,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 18:19:17,523 INFO L93 Difference]: Finished difference Result 2147 states and 3251 transitions. [2023-11-22 18:19:17,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2023-11-22 18:19:17,524 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 20 states have (on average 3.95) internal successors, (79), 20 states have internal predecessors, (79), 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 [2023-11-22 18:19:17,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 18:19:17,527 INFO L225 Difference]: With dead ends: 2147 [2023-11-22 18:19:17,527 INFO L226 Difference]: Without dead ends: 1088 [2023-11-22 18:19:17,529 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 [2023-11-22 18:19:17,529 INFO L413 NwaCegarLoop]: 774 mSDtfsCounter, 264 mSDsluCounter, 6860 mSDsCounter, 0 mSdLazyCounter, 2470 mSolverCounterSat, 271 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 265 SdHoareTripleChecker+Valid, 7634 SdHoareTripleChecker+Invalid, 2741 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 271 IncrementalHoareTripleChecker+Valid, 2470 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2023-11-22 18:19:17,530 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [265 Valid, 7634 Invalid, 2741 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [271 Valid, 2470 Invalid, 0 Unknown, 0 Unchecked, 5.6s Time] [2023-11-22 18:19:17,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1088 states. [2023-11-22 18:19:17,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1088 to 1083. [2023-11-22 18:19:17,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1083 states, 862 states have (on average 1.4582366589327147) internal successors, (1257), 869 states have internal predecessors, (1257), 156 states have call successors, (156), 59 states have call predecessors, (156), 64 states have return successors, (212), 154 states have call predecessors, (212), 150 states have call successors, (212) [2023-11-22 18:19:17,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1083 states to 1083 states and 1625 transitions. [2023-11-22 18:19:17,585 INFO L78 Accepts]: Start accepts. Automaton has 1083 states and 1625 transitions. Word has length 77 [2023-11-22 18:19:17,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 18:19:17,585 INFO L495 AbstractCegarLoop]: Abstraction has 1083 states and 1625 transitions. [2023-11-22 18:19:17,586 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 20 states have (on average 3.95) internal successors, (79), 20 states have internal predecessors, (79), 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) [2023-11-22 18:19:17,586 INFO L276 IsEmpty]: Start isEmpty. Operand 1083 states and 1625 transitions. [2023-11-22 18:19:17,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-11-22 18:19:17,587 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 18:19:17,587 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] [2023-11-22 18:19:17,601 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-11-22 18:19:17,799 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,SelfDestructingSolverStorable23 [2023-11-22 18:19:17,800 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 18:19:17,800 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 18:19:17,800 INFO L85 PathProgramCache]: Analyzing trace with hash 1345913307, now seen corresponding path program 1 times [2023-11-22 18:19:17,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 18:19:17,801 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1110647304] [2023-11-22 18:19:17,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 18:19:17,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 18:19:17,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:19:18,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-11-22 18:19:18,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:19:18,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-22 18:19:18,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:19:18,479 INFO L134 CoverageAnalysis]: Checked inductivity of 234 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 234 trivial. 0 not checked. [2023-11-22 18:19:18,479 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 18:19:18,479 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1110647304] [2023-11-22 18:19:18,479 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1110647304] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 18:19:18,479 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-22 18:19:18,479 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-22 18:19:18,480 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [154886344] [2023-11-22 18:19:18,480 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 18:19:18,480 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-22 18:19:18,480 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 18:19:18,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-22 18:19:18,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-11-22 18:19:18,481 INFO L87 Difference]: Start difference. First operand 1083 states and 1625 transitions. Second operand has 10 states, 8 states have (on average 5.375) internal successors, (43), 7 states have internal predecessors, (43), 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) [2023-11-22 18:19:25,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 18:19:25,186 INFO L93 Difference]: Finished difference Result 1134 states and 1708 transitions. [2023-11-22 18:19:25,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-22 18:19:25,187 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 5.375) internal successors, (43), 7 states have internal predecessors, (43), 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 81 [2023-11-22 18:19:25,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 18:19:25,208 INFO L225 Difference]: With dead ends: 1134 [2023-11-22 18:19:25,208 INFO L226 Difference]: Without dead ends: 1119 [2023-11-22 18:19:25,209 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2023-11-22 18:19:25,212 INFO L413 NwaCegarLoop]: 775 mSDtfsCounter, 82 mSDsluCounter, 5310 mSDsCounter, 0 mSdLazyCounter, 1859 mSolverCounterSat, 104 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 6085 SdHoareTripleChecker+Invalid, 1963 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 104 IncrementalHoareTripleChecker+Valid, 1859 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2023-11-22 18:19:25,213 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 6085 Invalid, 1963 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [104 Valid, 1859 Invalid, 0 Unknown, 0 Unchecked, 6.6s Time] [2023-11-22 18:19:25,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1119 states. [2023-11-22 18:19:25,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1119 to 1081. [2023-11-22 18:19:25,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1081 states, 861 states have (on average 1.4576074332171893) internal successors, (1255), 868 states have internal predecessors, (1255), 155 states have call successors, (155), 59 states have call predecessors, (155), 64 states have return successors, (211), 153 states have call predecessors, (211), 149 states have call successors, (211) [2023-11-22 18:19:25,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1081 states to 1081 states and 1621 transitions. [2023-11-22 18:19:25,298 INFO L78 Accepts]: Start accepts. Automaton has 1081 states and 1621 transitions. Word has length 81 [2023-11-22 18:19:25,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 18:19:25,298 INFO L495 AbstractCegarLoop]: Abstraction has 1081 states and 1621 transitions. [2023-11-22 18:19:25,298 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 8 states have (on average 5.375) internal successors, (43), 7 states have internal predecessors, (43), 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) [2023-11-22 18:19:25,298 INFO L276 IsEmpty]: Start isEmpty. Operand 1081 states and 1621 transitions. [2023-11-22 18:19:25,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-11-22 18:19:25,299 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 18:19:25,299 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] [2023-11-22 18:19:25,300 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2023-11-22 18:19:25,300 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 18:19:25,300 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 18:19:25,300 INFO L85 PathProgramCache]: Analyzing trace with hash 1926432319, now seen corresponding path program 1 times [2023-11-22 18:19:25,300 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 18:19:25,300 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1044087966] [2023-11-22 18:19:25,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 18:19:25,301 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 18:19:25,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:19:25,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-11-22 18:19:25,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:19:25,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-22 18:19:25,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:19:25,929 INFO L134 CoverageAnalysis]: Checked inductivity of 234 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 234 trivial. 0 not checked. [2023-11-22 18:19:25,929 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 18:19:25,929 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1044087966] [2023-11-22 18:19:25,930 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1044087966] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 18:19:25,930 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-22 18:19:25,930 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-22 18:19:25,930 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [370498876] [2023-11-22 18:19:25,930 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 18:19:25,930 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-22 18:19:25,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 18:19:25,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-22 18:19:25,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-11-22 18:19:25,931 INFO L87 Difference]: Start difference. First operand 1081 states and 1621 transitions. Second operand has 10 states, 8 states have (on average 5.375) internal successors, (43), 7 states have internal predecessors, (43), 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) [2023-11-22 18:19:32,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 18:19:32,705 INFO L93 Difference]: Finished difference Result 1132 states and 1704 transitions. [2023-11-22 18:19:32,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-22 18:19:32,706 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 5.375) internal successors, (43), 7 states have internal predecessors, (43), 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 81 [2023-11-22 18:19:32,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 18:19:32,708 INFO L225 Difference]: With dead ends: 1132 [2023-11-22 18:19:32,708 INFO L226 Difference]: Without dead ends: 1117 [2023-11-22 18:19:32,709 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2023-11-22 18:19:32,709 INFO L413 NwaCegarLoop]: 772 mSDtfsCounter, 72 mSDsluCounter, 5292 mSDsCounter, 0 mSdLazyCounter, 1845 mSolverCounterSat, 103 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 6064 SdHoareTripleChecker+Invalid, 1948 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 103 IncrementalHoareTripleChecker+Valid, 1845 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2023-11-22 18:19:32,709 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 6064 Invalid, 1948 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [103 Valid, 1845 Invalid, 0 Unknown, 0 Unchecked, 6.6s Time] [2023-11-22 18:19:32,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1117 states. [2023-11-22 18:19:32,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1117 to 1079. [2023-11-22 18:19:32,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1079 states, 860 states have (on average 1.4569767441860466) internal successors, (1253), 867 states have internal predecessors, (1253), 154 states have call successors, (154), 59 states have call predecessors, (154), 64 states have return successors, (210), 152 states have call predecessors, (210), 148 states have call successors, (210) [2023-11-22 18:19:32,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1079 states to 1079 states and 1617 transitions. [2023-11-22 18:19:32,785 INFO L78 Accepts]: Start accepts. Automaton has 1079 states and 1617 transitions. Word has length 81 [2023-11-22 18:19:32,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 18:19:32,786 INFO L495 AbstractCegarLoop]: Abstraction has 1079 states and 1617 transitions. [2023-11-22 18:19:32,786 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 8 states have (on average 5.375) internal successors, (43), 7 states have internal predecessors, (43), 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) [2023-11-22 18:19:32,786 INFO L276 IsEmpty]: Start isEmpty. Operand 1079 states and 1617 transitions. [2023-11-22 18:19:32,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2023-11-22 18:19:32,787 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 18:19:32,787 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] [2023-11-22 18:19:32,788 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2023-11-22 18:19:32,788 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 18:19:32,788 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 18:19:32,788 INFO L85 PathProgramCache]: Analyzing trace with hash -1991698003, now seen corresponding path program 1 times [2023-11-22 18:19:32,788 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 18:19:32,788 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1868536776] [2023-11-22 18:19:32,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 18:19:32,789 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 18:19:32,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:19:33,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-11-22 18:19:33,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:19:33,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-22 18:19:33,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:19:33,511 INFO L134 CoverageAnalysis]: Checked inductivity of 234 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 234 trivial. 0 not checked. [2023-11-22 18:19:33,512 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 18:19:33,512 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1868536776] [2023-11-22 18:19:33,512 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1868536776] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 18:19:33,512 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-22 18:19:33,512 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-22 18:19:33,512 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [145076671] [2023-11-22 18:19:33,512 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 18:19:33,513 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-22 18:19:33,513 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 18:19:33,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-22 18:19:33,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-11-22 18:19:33,514 INFO L87 Difference]: Start difference. First operand 1079 states and 1617 transitions. Second operand has 10 states, 8 states have (on average 5.25) internal successors, (42), 7 states have internal predecessors, (42), 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) [2023-11-22 18:19:40,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 18:19:40,162 INFO L93 Difference]: Finished difference Result 1129 states and 1699 transitions. [2023-11-22 18:19:40,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-22 18:19:40,162 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 5.25) internal successors, (42), 7 states have internal predecessors, (42), 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 80 [2023-11-22 18:19:40,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 18:19:40,165 INFO L225 Difference]: With dead ends: 1129 [2023-11-22 18:19:40,165 INFO L226 Difference]: Without dead ends: 1114 [2023-11-22 18:19:40,165 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2023-11-22 18:19:40,166 INFO L413 NwaCegarLoop]: 768 mSDtfsCounter, 82 mSDsluCounter, 5273 mSDsCounter, 0 mSdLazyCounter, 1833 mSolverCounterSat, 102 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 6041 SdHoareTripleChecker+Invalid, 1935 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 102 IncrementalHoareTripleChecker+Valid, 1833 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2023-11-22 18:19:40,166 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 6041 Invalid, 1935 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [102 Valid, 1833 Invalid, 0 Unknown, 0 Unchecked, 6.5s Time] [2023-11-22 18:19:40,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1114 states. [2023-11-22 18:19:40,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1114 to 1076. [2023-11-22 18:19:40,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1076 states, 858 states have (on average 1.456876456876457) internal successors, (1250), 865 states have internal predecessors, (1250), 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) [2023-11-22 18:19:40,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1076 states to 1076 states and 1612 transitions. [2023-11-22 18:19:40,280 INFO L78 Accepts]: Start accepts. Automaton has 1076 states and 1612 transitions. Word has length 80 [2023-11-22 18:19:40,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 18:19:40,280 INFO L495 AbstractCegarLoop]: Abstraction has 1076 states and 1612 transitions. [2023-11-22 18:19:40,280 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 8 states have (on average 5.25) internal successors, (42), 7 states have internal predecessors, (42), 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) [2023-11-22 18:19:40,280 INFO L276 IsEmpty]: Start isEmpty. Operand 1076 states and 1612 transitions. [2023-11-22 18:19:40,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2023-11-22 18:19:40,283 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 18:19:40,283 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] [2023-11-22 18:19:40,283 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2023-11-22 18:19:40,283 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 18:19:40,283 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 18:19:40,283 INFO L85 PathProgramCache]: Analyzing trace with hash 1297828572, now seen corresponding path program 1 times [2023-11-22 18:19:40,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 18:19:40,284 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [602742340] [2023-11-22 18:19:40,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 18:19:40,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 18:19:40,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:19:40,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-11-22 18:19:40,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:19:40,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-22 18:19:40,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:19:40,456 INFO L134 CoverageAnalysis]: Checked inductivity of 234 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 234 trivial. 0 not checked. [2023-11-22 18:19:40,456 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 18:19:40,456 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [602742340] [2023-11-22 18:19:40,457 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [602742340] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 18:19:40,457 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-22 18:19:40,457 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-22 18:19:40,457 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1266628821] [2023-11-22 18:19:40,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 18:19:40,457 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-22 18:19:40,457 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 18:19:40,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-22 18:19:40,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-22 18:19:40,458 INFO L87 Difference]: Start difference. First operand 1076 states and 1612 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) [2023-11-22 18:19:42,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 18:19:42,741 INFO L93 Difference]: Finished difference Result 1658 states and 2477 transitions. [2023-11-22 18:19:42,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-22 18:19:42,742 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 82 [2023-11-22 18:19:42,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 18:19:42,745 INFO L225 Difference]: With dead ends: 1658 [2023-11-22 18:19:42,745 INFO L226 Difference]: Without dead ends: 1174 [2023-11-22 18:19:42,746 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 [2023-11-22 18:19:42,747 INFO L413 NwaCegarLoop]: 810 mSDtfsCounter, 605 mSDsluCounter, 1529 mSDsCounter, 0 mSdLazyCounter, 673 mSolverCounterSat, 235 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 633 SdHoareTripleChecker+Valid, 2339 SdHoareTripleChecker+Invalid, 908 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 235 IncrementalHoareTripleChecker+Valid, 673 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2023-11-22 18:19:42,747 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [633 Valid, 2339 Invalid, 908 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [235 Valid, 673 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2023-11-22 18:19:42,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1174 states. [2023-11-22 18:19:42,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1174 to 1076. [2023-11-22 18:19:42,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1076 states, 858 states have (on average 1.4557109557109558) internal successors, (1249), 865 states have internal predecessors, (1249), 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) [2023-11-22 18:19:42,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1076 states to 1076 states and 1611 transitions. [2023-11-22 18:19:42,830 INFO L78 Accepts]: Start accepts. Automaton has 1076 states and 1611 transitions. Word has length 82 [2023-11-22 18:19:42,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 18:19:42,830 INFO L495 AbstractCegarLoop]: Abstraction has 1076 states and 1611 transitions. [2023-11-22 18:19:42,830 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) [2023-11-22 18:19:42,831 INFO L276 IsEmpty]: Start isEmpty. Operand 1076 states and 1611 transitions. [2023-11-22 18:19:42,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2023-11-22 18:19:42,832 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 18:19:42,832 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] [2023-11-22 18:19:42,832 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2023-11-22 18:19:42,832 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 18:19:42,833 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 18:19:42,833 INFO L85 PathProgramCache]: Analyzing trace with hash 748320262, now seen corresponding path program 1 times [2023-11-22 18:19:42,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 18:19:42,833 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1393371723] [2023-11-22 18:19:42,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 18:19:42,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 18:19:42,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:19:43,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-11-22 18:19:43,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:19:43,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-22 18:19:43,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:19:43,696 INFO L134 CoverageAnalysis]: Checked inductivity of 234 backedges. 0 proven. 78 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2023-11-22 18:19:43,696 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 18:19:43,696 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1393371723] [2023-11-22 18:19:43,696 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1393371723] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-22 18:19:43,697 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [536600922] [2023-11-22 18:19:43,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 18:19:43,697 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-22 18:19:43,697 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-22 18:19:43,698 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) [2023-11-22 18:19:43,699 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-22 18:19:44,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:19:44,401 INFO L262 TraceCheckSpWp]: Trace formula consists of 1443 conjuncts, 23 conjunts are in the unsatisfiable core [2023-11-22 18:19:44,403 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-22 18:19:44,583 INFO L134 CoverageAnalysis]: Checked inductivity of 234 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 234 trivial. 0 not checked. [2023-11-22 18:19:44,583 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-22 18:19:44,583 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [536600922] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 18:19:44,583 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-22 18:19:44,583 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [16] total 24 [2023-11-22 18:19:44,584 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1904527860] [2023-11-22 18:19:44,584 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 18:19:44,584 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-22 18:19:44,584 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 18:19:44,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-22 18:19:44,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=495, Unknown=0, NotChecked=0, Total=552 [2023-11-22 18:19:44,585 INFO L87 Difference]: Start difference. First operand 1076 states and 1611 transitions. Second operand has 10 states, 8 states have (on average 5.5) internal successors, (44), 8 states have internal predecessors, (44), 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) [2023-11-22 18:19:45,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 18:19:45,721 INFO L93 Difference]: Finished difference Result 1089 states and 1624 transitions. [2023-11-22 18:19:45,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-22 18:19:45,722 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 5.5) internal successors, (44), 8 states have internal predecessors, (44), 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 82 [2023-11-22 18:19:45,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 18:19:45,724 INFO L225 Difference]: With dead ends: 1089 [2023-11-22 18:19:45,724 INFO L226 Difference]: Without dead ends: 1073 [2023-11-22 18:19:45,725 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=69, Invalid=633, Unknown=0, NotChecked=0, Total=702 [2023-11-22 18:19:45,726 INFO L413 NwaCegarLoop]: 835 mSDtfsCounter, 13 mSDsluCounter, 6549 mSDsCounter, 0 mSdLazyCounter, 593 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 7384 SdHoareTripleChecker+Invalid, 596 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 593 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-11-22 18:19:45,726 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 7384 Invalid, 596 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 593 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-11-22 18:19:45,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1073 states. [2023-11-22 18:19:45,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1073 to 1073. [2023-11-22 18:19:45,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1073 states, 856 states have (on average 1.455607476635514) internal successors, (1246), 863 states have internal predecessors, (1246), 152 states have call successors, (152), 59 states have call predecessors, (152), 64 states have return successors, (208), 150 states have call predecessors, (208), 146 states have call successors, (208) [2023-11-22 18:19:45,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1073 states to 1073 states and 1606 transitions. [2023-11-22 18:19:45,832 INFO L78 Accepts]: Start accepts. Automaton has 1073 states and 1606 transitions. Word has length 82 [2023-11-22 18:19:45,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 18:19:45,833 INFO L495 AbstractCegarLoop]: Abstraction has 1073 states and 1606 transitions. [2023-11-22 18:19:45,833 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 8 states have (on average 5.5) internal successors, (44), 8 states have internal predecessors, (44), 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) [2023-11-22 18:19:45,833 INFO L276 IsEmpty]: Start isEmpty. Operand 1073 states and 1606 transitions. [2023-11-22 18:19:45,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2023-11-22 18:19:45,834 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 18:19:45,834 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] [2023-11-22 18:19:45,851 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-11-22 18:19:46,040 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2023-11-22 18:19:46,041 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 18:19:46,041 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 18:19:46,041 INFO L85 PathProgramCache]: Analyzing trace with hash 516005080, now seen corresponding path program 1 times [2023-11-22 18:19:46,041 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 18:19:46,041 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [879750028] [2023-11-22 18:19:46,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 18:19:46,042 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 18:19:46,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:19:46,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-11-22 18:19:46,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:19:46,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-11-22 18:19:46,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:19:46,183 INFO L134 CoverageAnalysis]: Checked inductivity of 234 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 234 trivial. 0 not checked. [2023-11-22 18:19:46,184 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 18:19:46,184 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [879750028] [2023-11-22 18:19:46,184 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [879750028] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 18:19:46,184 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-22 18:19:46,184 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-22 18:19:46,184 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2041320404] [2023-11-22 18:19:46,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 18:19:46,185 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-22 18:19:46,185 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 18:19:46,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-22 18:19:46,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-22 18:19:46,186 INFO L87 Difference]: Start difference. First operand 1073 states and 1606 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) [2023-11-22 18:19:48,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 18:19:48,906 INFO L93 Difference]: Finished difference Result 1177 states and 1751 transitions. [2023-11-22 18:19:48,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-22 18:19:48,907 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 [2023-11-22 18:19:48,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 18:19:48,909 INFO L225 Difference]: With dead ends: 1177 [2023-11-22 18:19:48,909 INFO L226 Difference]: Without dead ends: 1115 [2023-11-22 18:19:48,910 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 [2023-11-22 18:19:48,910 INFO L413 NwaCegarLoop]: 764 mSDtfsCounter, 907 mSDsluCounter, 1293 mSDsCounter, 0 mSdLazyCounter, 580 mSolverCounterSat, 250 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 984 SdHoareTripleChecker+Valid, 2057 SdHoareTripleChecker+Invalid, 830 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 250 IncrementalHoareTripleChecker+Valid, 580 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2023-11-22 18:19:48,910 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [984 Valid, 2057 Invalid, 830 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [250 Valid, 580 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2023-11-22 18:19:48,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1115 states. [2023-11-22 18:19:48,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1115 to 1064. [2023-11-22 18:19:48,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1064 states, 851 states have (on average 1.4559341950646298) internal successors, (1239), 858 states have internal predecessors, (1239), 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) [2023-11-22 18:19:48,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1064 states to 1064 states and 1595 transitions. [2023-11-22 18:19:48,989 INFO L78 Accepts]: Start accepts. Automaton has 1064 states and 1595 transitions. Word has length 83 [2023-11-22 18:19:48,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 18:19:48,989 INFO L495 AbstractCegarLoop]: Abstraction has 1064 states and 1595 transitions. [2023-11-22 18:19:48,989 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) [2023-11-22 18:19:48,989 INFO L276 IsEmpty]: Start isEmpty. Operand 1064 states and 1595 transitions. [2023-11-22 18:19:48,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2023-11-22 18:19:48,991 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 18:19:48,991 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] [2023-11-22 18:19:48,991 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2023-11-22 18:19:48,991 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 18:19:48,992 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 18:19:48,992 INFO L85 PathProgramCache]: Analyzing trace with hash 1826730326, now seen corresponding path program 1 times [2023-11-22 18:19:48,992 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 18:19:48,992 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1395000244] [2023-11-22 18:19:48,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 18:19:48,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 18:19:49,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:19:49,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-11-22 18:19:49,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:19:49,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-22 18:19:49,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:19:49,658 INFO L134 CoverageAnalysis]: Checked inductivity of 234 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 234 trivial. 0 not checked. [2023-11-22 18:19:49,658 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 18:19:49,658 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1395000244] [2023-11-22 18:19:49,659 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1395000244] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 18:19:49,659 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-22 18:19:49,659 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-11-22 18:19:49,659 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [752850966] [2023-11-22 18:19:49,659 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 18:19:49,659 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-22 18:19:49,659 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 18:19:49,660 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-22 18:19:49,660 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2023-11-22 18:19:49,660 INFO L87 Difference]: Start difference. First operand 1064 states and 1595 transitions. Second operand has 11 states, 9 states have (on average 5.0) 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) [2023-11-22 18:19:55,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 18:19:55,737 INFO L93 Difference]: Finished difference Result 1110 states and 1669 transitions. [2023-11-22 18:19:55,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-22 18:19:55,738 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 5.0) 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 [2023-11-22 18:19:55,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 18:19:55,740 INFO L225 Difference]: With dead ends: 1110 [2023-11-22 18:19:55,740 INFO L226 Difference]: Without dead ends: 1094 [2023-11-22 18:19:55,741 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2023-11-22 18:19:55,741 INFO L413 NwaCegarLoop]: 765 mSDtfsCounter, 82 mSDsluCounter, 5952 mSDsCounter, 0 mSdLazyCounter, 2019 mSolverCounterSat, 100 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 6717 SdHoareTripleChecker+Invalid, 2119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 100 IncrementalHoareTripleChecker+Valid, 2019 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2023-11-22 18:19:55,741 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 6717 Invalid, 2119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [100 Valid, 2019 Invalid, 0 Unknown, 0 Unchecked, 5.9s Time] [2023-11-22 18:19:55,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1094 states. [2023-11-22 18:19:55,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1094 to 1062. [2023-11-22 18:19:55,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1062 states, 850 states have (on average 1.4552941176470588) internal successors, (1237), 857 states have internal predecessors, (1237), 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) [2023-11-22 18:19:55,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1062 states to 1062 states and 1591 transitions. [2023-11-22 18:19:55,824 INFO L78 Accepts]: Start accepts. Automaton has 1062 states and 1591 transitions. Word has length 83 [2023-11-22 18:19:55,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 18:19:55,824 INFO L495 AbstractCegarLoop]: Abstraction has 1062 states and 1591 transitions. [2023-11-22 18:19:55,824 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 5.0) 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) [2023-11-22 18:19:55,824 INFO L276 IsEmpty]: Start isEmpty. Operand 1062 states and 1591 transitions. [2023-11-22 18:19:55,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2023-11-22 18:19:55,826 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 18:19:55,826 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] [2023-11-22 18:19:55,826 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2023-11-22 18:19:55,826 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 18:19:55,826 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 18:19:55,826 INFO L85 PathProgramCache]: Analyzing trace with hash -227022994, now seen corresponding path program 4 times [2023-11-22 18:19:55,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 18:19:55,827 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1098363751] [2023-11-22 18:19:55,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 18:19:55,827 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 18:19:55,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:19:56,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-11-22 18:19:56,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:19:56,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-11-22 18:19:56,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:19:56,297 INFO L134 CoverageAnalysis]: Checked inductivity of 244 backedges. 0 proven. 78 refuted. 0 times theorem prover too weak. 166 trivial. 0 not checked. [2023-11-22 18:19:56,297 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 18:19:56,297 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1098363751] [2023-11-22 18:19:56,298 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1098363751] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-22 18:19:56,298 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [258265790] [2023-11-22 18:19:56,298 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-11-22 18:19:56,298 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-22 18:19:56,298 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-22 18:19:56,321 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) [2023-11-22 18:19:56,322 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-22 18:19:57,099 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-11-22 18:19:57,100 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-22 18:19:57,106 INFO L262 TraceCheckSpWp]: Trace formula consists of 1244 conjuncts, 51 conjunts are in the unsatisfiable core [2023-11-22 18:19:57,113 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-22 18:19:57,167 INFO L134 CoverageAnalysis]: Checked inductivity of 244 backedges. 0 proven. 128 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2023-11-22 18:19:57,167 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-22 18:19:57,316 INFO L134 CoverageAnalysis]: Checked inductivity of 244 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 234 trivial. 0 not checked. [2023-11-22 18:19:57,316 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [258265790] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-22 18:19:57,316 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-22 18:19:57,316 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 15, 8] total 24 [2023-11-22 18:19:57,316 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1206602326] [2023-11-22 18:19:57,316 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-22 18:19:57,317 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-11-22 18:19:57,317 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 18:19:57,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-11-22 18:19:57,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=489, Unknown=0, NotChecked=0, Total=552 [2023-11-22 18:19:57,317 INFO L87 Difference]: Start difference. First operand 1062 states and 1591 transitions. Second operand has 24 states, 23 states have (on average 4.260869565217392) internal successors, (98), 22 states have internal predecessors, (98), 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) [2023-11-22 18:20:07,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 18:20:07,852 INFO L93 Difference]: Finished difference Result 2122 states and 3192 transitions. [2023-11-22 18:20:07,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2023-11-22 18:20:07,852 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 4.260869565217392) internal successors, (98), 22 states have internal predecessors, (98), 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 [2023-11-22 18:20:07,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 18:20:07,855 INFO L225 Difference]: With dead ends: 2122 [2023-11-22 18:20:07,855 INFO L226 Difference]: Without dead ends: 1072 [2023-11-22 18:20:07,858 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 192 GetRequests, 162 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=139, Invalid=853, Unknown=0, NotChecked=0, Total=992 [2023-11-22 18:20:07,859 INFO L413 NwaCegarLoop]: 754 mSDtfsCounter, 261 mSDsluCounter, 14367 mSDsCounter, 0 mSdLazyCounter, 4596 mSolverCounterSat, 237 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 262 SdHoareTripleChecker+Valid, 15121 SdHoareTripleChecker+Invalid, 4833 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 237 IncrementalHoareTripleChecker+Valid, 4596 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.2s IncrementalHoareTripleChecker+Time [2023-11-22 18:20:07,859 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [262 Valid, 15121 Invalid, 4833 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [237 Valid, 4596 Invalid, 0 Unknown, 0 Unchecked, 10.2s Time] [2023-11-22 18:20:07,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1072 states. [2023-11-22 18:20:07,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1072 to 1067. [2023-11-22 18:20:07,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1067 states, 855 states have (on average 1.4526315789473685) internal successors, (1242), 862 states have internal predecessors, (1242), 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) [2023-11-22 18:20:07,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1067 states to 1067 states and 1596 transitions. [2023-11-22 18:20:07,942 INFO L78 Accepts]: Start accepts. Automaton has 1067 states and 1596 transitions. Word has length 83 [2023-11-22 18:20:07,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 18:20:07,942 INFO L495 AbstractCegarLoop]: Abstraction has 1067 states and 1596 transitions. [2023-11-22 18:20:07,942 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 4.260869565217392) internal successors, (98), 22 states have internal predecessors, (98), 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) [2023-11-22 18:20:07,943 INFO L276 IsEmpty]: Start isEmpty. Operand 1067 states and 1596 transitions. [2023-11-22 18:20:07,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2023-11-22 18:20:07,944 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 18:20:07,944 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] [2023-11-22 18:20:07,958 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2023-11-22 18:20:08,158 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 [2023-11-22 18:20:08,159 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 18:20:08,159 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 18:20:08,159 INFO L85 PathProgramCache]: Analyzing trace with hash 2085097127, now seen corresponding path program 5 times [2023-11-22 18:20:08,159 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 18:20:08,160 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1827678690] [2023-11-22 18:20:08,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 18:20:08,160 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 18:20:08,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:20:08,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-11-22 18:20:08,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:20:08,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-11-22 18:20:08,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:20:08,707 INFO L134 CoverageAnalysis]: Checked inductivity of 288 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 197 trivial. 0 not checked. [2023-11-22 18:20:08,708 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 18:20:08,708 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1827678690] [2023-11-22 18:20:08,708 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1827678690] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-22 18:20:08,708 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1552036786] [2023-11-22 18:20:08,708 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-11-22 18:20:08,708 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-22 18:20:08,708 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-22 18:20:08,709 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) [2023-11-22 18:20:08,734 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process Killed by 15