./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--usb--cdc_eem.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6497de01 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de4f6356-2bf9-4cc5-ad2b-7d5e1cceedfb/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de4f6356-2bf9-4cc5-ad2b-7d5e1cceedfb/bin/uautomizer-verify-LYvppIcaGC/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de4f6356-2bf9-4cc5-ad2b-7d5e1cceedfb/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de4f6356-2bf9-4cc5-ad2b-7d5e1cceedfb/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--usb--cdc_eem.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de4f6356-2bf9-4cc5-ad2b-7d5e1cceedfb/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de4f6356-2bf9-4cc5-ad2b-7d5e1cceedfb/bin/uautomizer-verify-LYvppIcaGC --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 5ad15ea2ee4e38087fdbbd25111673bb935102e85f8e91f44e32009dacc41114 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-24 02:08:12,692 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-24 02:08:12,803 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de4f6356-2bf9-4cc5-ad2b-7d5e1cceedfb/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-24 02:08:12,814 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-24 02:08:12,814 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-24 02:08:12,856 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-24 02:08:12,857 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-24 02:08:12,857 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-24 02:08:12,857 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-24 02:08:12,858 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-24 02:08:12,858 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-24 02:08:12,858 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-24 02:08:12,859 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-24 02:08:12,860 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-24 02:08:12,861 INFO L153 SettingsManager]: * Use SBE=true [2024-11-24 02:08:12,861 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-24 02:08:12,861 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-24 02:08:12,861 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-24 02:08:12,862 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-24 02:08:12,862 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-24 02:08:12,862 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-24 02:08:12,862 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-24 02:08:12,862 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-24 02:08:12,862 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-24 02:08:12,863 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-24 02:08:12,863 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-24 02:08:12,863 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 02:08:12,863 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 02:08:12,863 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 02:08:12,863 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 02:08:12,864 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-24 02:08:12,864 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 02:08:12,864 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 02:08:12,864 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 02:08:12,864 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 02:08:12,864 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-24 02:08:12,864 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-24 02:08:12,864 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-24 02:08:12,865 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-24 02:08:12,865 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-24 02:08:12,865 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-24 02:08:12,865 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-24 02:08:12,865 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-24 02:08:12,865 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-24 02:08:12,866 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-24 02:08:12,866 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de4f6356-2bf9-4cc5-ad2b-7d5e1cceedfb/bin/uautomizer-verify-LYvppIcaGC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5ad15ea2ee4e38087fdbbd25111673bb935102e85f8e91f44e32009dacc41114 [2024-11-24 02:08:13,240 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-24 02:08:13,255 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-24 02:08:13,258 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-24 02:08:13,260 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-24 02:08:13,260 INFO L274 PluginConnector]: CDTParser initialized [2024-11-24 02:08:13,261 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de4f6356-2bf9-4cc5-ad2b-7d5e1cceedfb/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--usb--cdc_eem.ko-entry_point.cil.out.i [2024-11-24 02:08:16,401 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de4f6356-2bf9-4cc5-ad2b-7d5e1cceedfb/bin/uautomizer-verify-LYvppIcaGC/data/1971f4c0a/16863d6c093f43e384f963e8a0e49a5c/FLAGde93f16bd [2024-11-24 02:08:16,950 INFO L384 CDTParser]: Found 1 translation units. [2024-11-24 02:08:16,951 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de4f6356-2bf9-4cc5-ad2b-7d5e1cceedfb/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--usb--cdc_eem.ko-entry_point.cil.out.i [2024-11-24 02:08:16,998 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de4f6356-2bf9-4cc5-ad2b-7d5e1cceedfb/bin/uautomizer-verify-LYvppIcaGC/data/1971f4c0a/16863d6c093f43e384f963e8a0e49a5c/FLAGde93f16bd [2024-11-24 02:08:17,478 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de4f6356-2bf9-4cc5-ad2b-7d5e1cceedfb/bin/uautomizer-verify-LYvppIcaGC/data/1971f4c0a/16863d6c093f43e384f963e8a0e49a5c [2024-11-24 02:08:17,480 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-24 02:08:17,481 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-24 02:08:17,483 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-24 02:08:17,483 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-24 02:08:17,488 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-24 02:08:17,489 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 02:08:17" (1/1) ... [2024-11-24 02:08:17,490 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3ada1580 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:08:17, skipping insertion in model container [2024-11-24 02:08:17,490 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 02:08:17" (1/1) ... [2024-11-24 02:08:17,582 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-24 02:08:18,489 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de4f6356-2bf9-4cc5-ad2b-7d5e1cceedfb/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--usb--cdc_eem.ko-entry_point.cil.out.i[161556,161569] [2024-11-24 02:08:18,795 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 02:08:18,870 INFO L200 MainTranslator]: Completed pre-run [2024-11-24 02:08:19,031 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("bswapl %0": "=r" (val): "0" (val)); [5489] [2024-11-24 02:08:19,044 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de4f6356-2bf9-4cc5-ad2b-7d5e1cceedfb/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--usb--cdc_eem.ko-entry_point.cil.out.i[161556,161569] [2024-11-24 02:08:19,140 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 02:08:19,190 INFO L204 MainTranslator]: Completed translation [2024-11-24 02:08:19,191 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:08:19 WrapperNode [2024-11-24 02:08:19,192 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-24 02:08:19,193 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-24 02:08:19,194 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-24 02:08:19,194 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-24 02:08:19,228 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:08:19" (1/1) ... [2024-11-24 02:08:19,272 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:08:19" (1/1) ... [2024-11-24 02:08:19,363 INFO L138 Inliner]: procedures = 125, calls = 382, calls flagged for inlining = 59, calls inlined = 54, statements flattened = 1172 [2024-11-24 02:08:19,363 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-24 02:08:19,364 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-24 02:08:19,364 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-24 02:08:19,364 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-24 02:08:19,378 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:08:19" (1/1) ... [2024-11-24 02:08:19,378 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:08:19" (1/1) ... [2024-11-24 02:08:19,399 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:08:19" (1/1) ... [2024-11-24 02:08:19,562 INFO L175 MemorySlicer]: Split 232 memory accesses to 10 slices as follows [2, 7, 8, 121, 8, 2, 19, 3, 18, 44]. 52 percent of accesses are in the largest equivalence class. The 67 initializations are split as follows [2, 0, 8, 34, 8, 0, 0, 0, 15, 0]. The 97 writes are split as follows [0, 6, 0, 25, 0, 1, 19, 1, 1, 44]. [2024-11-24 02:08:19,566 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:08:19" (1/1) ... [2024-11-24 02:08:19,566 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:08:19" (1/1) ... [2024-11-24 02:08:19,627 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:08:19" (1/1) ... [2024-11-24 02:08:19,630 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:08:19" (1/1) ... [2024-11-24 02:08:19,637 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:08:19" (1/1) ... [2024-11-24 02:08:19,650 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:08:19" (1/1) ... [2024-11-24 02:08:19,665 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:08:19" (1/1) ... [2024-11-24 02:08:19,688 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-24 02:08:19,693 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-24 02:08:19,693 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-24 02:08:19,693 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-24 02:08:19,694 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:08:19" (1/1) ... [2024-11-24 02:08:19,704 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 02:08:19,724 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de4f6356-2bf9-4cc5-ad2b-7d5e1cceedfb/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 02:08:19,744 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de4f6356-2bf9-4cc5-ad2b-7d5e1cceedfb/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-24 02:08:19,751 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de4f6356-2bf9-4cc5-ad2b-7d5e1cceedfb/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-24 02:08:19,800 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-11-24 02:08:19,800 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-11-24 02:08:19,800 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-11-24 02:08:19,800 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-11-24 02:08:19,800 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2024-11-24 02:08:19,801 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2024-11-24 02:08:19,801 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2024-11-24 02:08:19,801 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#7 [2024-11-24 02:08:19,802 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#8 [2024-11-24 02:08:19,802 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#9 [2024-11-24 02:08:19,802 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#0 [2024-11-24 02:08:19,802 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#1 [2024-11-24 02:08:19,802 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#2 [2024-11-24 02:08:19,802 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#3 [2024-11-24 02:08:19,802 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#4 [2024-11-24 02:08:19,803 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#5 [2024-11-24 02:08:19,803 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#6 [2024-11-24 02:08:19,803 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#7 [2024-11-24 02:08:19,804 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#8 [2024-11-24 02:08:19,804 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#9 [2024-11-24 02:08:19,804 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-11-24 02:08:19,804 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-11-24 02:08:19,804 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-11-24 02:08:19,804 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-11-24 02:08:19,804 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-11-24 02:08:19,804 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2024-11-24 02:08:19,804 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2024-11-24 02:08:19,804 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#7 [2024-11-24 02:08:19,804 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#8 [2024-11-24 02:08:19,804 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#9 [2024-11-24 02:08:19,804 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2024-11-24 02:08:19,804 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2024-11-24 02:08:19,805 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-24 02:08:19,805 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-24 02:08:19,805 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-24 02:08:19,805 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-24 02:08:19,805 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-24 02:08:19,805 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-24 02:08:19,805 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-11-24 02:08:19,805 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-11-24 02:08:19,807 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2024-11-24 02:08:19,807 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2024-11-24 02:08:19,807 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_disconnect [2024-11-24 02:08:19,807 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_disconnect [2024-11-24 02:08:19,807 INFO L130 BoogieDeclarations]: Found specification of procedure skb_push [2024-11-24 02:08:19,807 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_push [2024-11-24 02:08:19,807 INFO L130 BoogieDeclarations]: Found specification of procedure skb_clone [2024-11-24 02:08:19,807 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_clone [2024-11-24 02:08:19,807 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free [2024-11-24 02:08:19,807 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free [2024-11-24 02:08:19,807 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2024-11-24 02:08:19,807 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2024-11-24 02:08:19,807 INFO L130 BoogieDeclarations]: Found specification of procedure skb_trim [2024-11-24 02:08:19,807 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_trim [2024-11-24 02:08:19,807 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-24 02:08:19,808 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-24 02:08:19,808 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-24 02:08:19,808 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-24 02:08:19,808 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-24 02:08:19,808 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-24 02:08:19,808 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-11-24 02:08:19,808 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-11-24 02:08:19,808 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2024-11-24 02:08:19,808 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2024-11-24 02:08:19,808 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2024-11-24 02:08:19,808 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2024-11-24 02:08:19,808 INFO L130 BoogieDeclarations]: Found specification of procedure skb_pull [2024-11-24 02:08:19,808 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_pull [2024-11-24 02:08:19,808 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2024-11-24 02:08:19,808 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2024-11-24 02:08:19,808 INFO L130 BoogieDeclarations]: Found specification of procedure put_unaligned_le16 [2024-11-24 02:08:19,808 INFO L138 BoogieDeclarations]: Found implementation of procedure put_unaligned_le16 [2024-11-24 02:08:19,809 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2024-11-24 02:08:19,809 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2024-11-24 02:08:19,809 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2024-11-24 02:08:19,809 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#3 [2024-11-24 02:08:19,809 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#4 [2024-11-24 02:08:19,809 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#5 [2024-11-24 02:08:19,809 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#6 [2024-11-24 02:08:19,809 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#7 [2024-11-24 02:08:19,809 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#8 [2024-11-24 02:08:19,809 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#9 [2024-11-24 02:08:19,809 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2024-11-24 02:08:19,809 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2024-11-24 02:08:19,809 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2024-11-24 02:08:19,809 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#3 [2024-11-24 02:08:19,809 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#4 [2024-11-24 02:08:19,809 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#5 [2024-11-24 02:08:19,809 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#6 [2024-11-24 02:08:19,809 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#7 [2024-11-24 02:08:19,810 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#8 [2024-11-24 02:08:19,810 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#9 [2024-11-24 02:08:19,810 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-24 02:08:19,810 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-24 02:08:19,810 INFO L130 BoogieDeclarations]: Found specification of procedure eem_rx_fixup [2024-11-24 02:08:19,810 INFO L138 BoogieDeclarations]: Found implementation of procedure eem_rx_fixup [2024-11-24 02:08:19,810 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-24 02:08:19,814 INFO L130 BoogieDeclarations]: Found specification of procedure crc32_le [2024-11-24 02:08:19,814 INFO L138 BoogieDeclarations]: Found implementation of procedure crc32_le [2024-11-24 02:08:19,814 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2024-11-24 02:08:19,814 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2024-11-24 02:08:19,814 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-24 02:08:19,814 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-24 02:08:19,815 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-24 02:08:19,815 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-24 02:08:19,815 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-24 02:08:19,815 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-24 02:08:19,815 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-24 02:08:19,815 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-11-24 02:08:19,815 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2024-11-24 02:08:19,815 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2024-11-24 02:08:19,816 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#8 [2024-11-24 02:08:19,816 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#9 [2024-11-24 02:08:19,816 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-24 02:08:19,816 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-24 02:08:19,816 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-24 02:08:19,816 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-24 02:08:19,816 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-24 02:08:19,816 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-11-24 02:08:19,816 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2024-11-24 02:08:19,816 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2024-11-24 02:08:19,816 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2024-11-24 02:08:19,817 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#9 [2024-11-24 02:08:19,817 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_remove [2024-11-24 02:08:19,817 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_remove [2024-11-24 02:08:19,817 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2024-11-24 02:08:19,817 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2024-11-24 02:08:19,817 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-24 02:08:19,817 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-24 02:08:19,818 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-24 02:08:19,818 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-24 02:08:19,818 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-24 02:08:19,818 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-11-24 02:08:19,818 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-11-24 02:08:19,818 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2024-11-24 02:08:19,819 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2024-11-24 02:08:19,819 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#8 [2024-11-24 02:08:19,819 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#9 [2024-11-24 02:08:19,819 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2024-11-24 02:08:19,819 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2024-11-24 02:08:19,819 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_warn [2024-11-24 02:08:19,819 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_warn [2024-11-24 02:08:19,819 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-24 02:08:19,819 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-24 02:08:19,819 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-24 02:08:19,819 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-24 02:08:19,819 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-24 02:08:19,819 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-24 02:08:19,820 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-24 02:08:19,820 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-11-24 02:08:19,820 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-11-24 02:08:19,820 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2024-11-24 02:08:19,820 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#0 [2024-11-24 02:08:19,820 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#1 [2024-11-24 02:08:19,820 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#2 [2024-11-24 02:08:19,820 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#3 [2024-11-24 02:08:19,820 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#4 [2024-11-24 02:08:19,820 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#5 [2024-11-24 02:08:19,820 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#6 [2024-11-24 02:08:19,820 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#7 [2024-11-24 02:08:19,820 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#8 [2024-11-24 02:08:19,820 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#9 [2024-11-24 02:08:19,820 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2024-11-24 02:08:19,820 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2024-11-24 02:08:19,820 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-24 02:08:19,820 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-24 02:08:19,820 INFO L130 BoogieDeclarations]: Found specification of procedure eem_tx_fixup [2024-11-24 02:08:19,821 INFO L138 BoogieDeclarations]: Found implementation of procedure eem_tx_fixup [2024-11-24 02:08:20,337 INFO L234 CfgBuilder]: Building ICFG [2024-11-24 02:08:20,341 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-24 02:08:20,369 INFO L727 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2024-11-24 02:08:26,350 INFO L? ?]: Removed 574 outVars from TransFormulas that were not future-live. [2024-11-24 02:08:26,350 INFO L283 CfgBuilder]: Performing block encoding [2024-11-24 02:08:26,377 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-24 02:08:26,378 INFO L312 CfgBuilder]: Removed 4 assume(true) statements. [2024-11-24 02:08:26,379 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 02:08:26 BoogieIcfgContainer [2024-11-24 02:08:26,379 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-24 02:08:26,381 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-24 02:08:26,382 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-24 02:08:26,386 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-24 02:08:26,387 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 02:08:17" (1/3) ... [2024-11-24 02:08:26,387 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2247fd10 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 02:08:26, skipping insertion in model container [2024-11-24 02:08:26,387 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:08:19" (2/3) ... [2024-11-24 02:08:26,388 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2247fd10 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 02:08:26, skipping insertion in model container [2024-11-24 02:08:26,388 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 02:08:26" (3/3) ... [2024-11-24 02:08:26,389 INFO L128 eAbstractionObserver]: Analyzing ICFG 205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--usb--cdc_eem.ko-entry_point.cil.out.i [2024-11-24 02:08:26,407 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-24 02:08:26,412 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--usb--cdc_eem.ko-entry_point.cil.out.i that has 32 procedures, 369 locations, 1 initial locations, 14 loop locations, and 1 error locations. [2024-11-24 02:08:26,475 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 02:08:26,487 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@675532d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 02:08:26,487 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-24 02:08:26,492 INFO L276 IsEmpty]: Start isEmpty. Operand has 336 states, 261 states have (on average 1.3869731800766283) internal successors, (362), 271 states have internal predecessors, (362), 51 states have call successors, (51), 23 states have call predecessors, (51), 22 states have return successors, (47), 47 states have call predecessors, (47), 47 states have call successors, (47) [2024-11-24 02:08:26,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2024-11-24 02:08:26,501 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:08:26,502 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:08:26,502 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 02:08:26,507 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:08:26,508 INFO L85 PathProgramCache]: Analyzing trace with hash -1105558854, now seen corresponding path program 1 times [2024-11-24 02:08:26,515 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:08:26,516 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [952394060] [2024-11-24 02:08:26,516 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:08:26,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:08:27,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:08:27,856 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-24 02:08:27,857 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:08:27,857 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [952394060] [2024-11-24 02:08:27,858 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [952394060] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:08:27,858 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:08:27,858 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 02:08:27,861 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [704242698] [2024-11-24 02:08:27,862 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:08:27,867 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 02:08:27,867 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:08:27,890 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 02:08:27,891 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 02:08:27,896 INFO L87 Difference]: Start difference. First operand has 336 states, 261 states have (on average 1.3869731800766283) internal successors, (362), 271 states have internal predecessors, (362), 51 states have call successors, (51), 23 states have call predecessors, (51), 22 states have return successors, (47), 47 states have call predecessors, (47), 47 states have call successors, (47) Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-24 02:08:31,932 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 02:08:32,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:08:32,135 INFO L93 Difference]: Finished difference Result 956 states and 1363 transitions. [2024-11-24 02:08:32,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 02:08:32,140 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 42 [2024-11-24 02:08:32,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:08:32,168 INFO L225 Difference]: With dead ends: 956 [2024-11-24 02:08:32,168 INFO L226 Difference]: Without dead ends: 609 [2024-11-24 02:08:32,180 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 02:08:32,184 INFO L435 NwaCegarLoop]: 458 mSDtfsCounter, 397 mSDsluCounter, 431 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 397 SdHoareTripleChecker+Valid, 889 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2024-11-24 02:08:32,187 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [397 Valid, 889 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 11 Invalid, 1 Unknown, 0 Unchecked, 4.1s Time] [2024-11-24 02:08:32,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 609 states. [2024-11-24 02:08:32,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 609 to 609. [2024-11-24 02:08:32,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 609 states, 482 states have (on average 1.3526970954356847) internal successors, (652), 490 states have internal predecessors, (652), 86 states have call successors, (86), 41 states have call predecessors, (86), 40 states have return successors, (85), 85 states have call predecessors, (85), 85 states have call successors, (85) [2024-11-24 02:08:32,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 609 states to 609 states and 823 transitions. [2024-11-24 02:08:32,360 INFO L78 Accepts]: Start accepts. Automaton has 609 states and 823 transitions. Word has length 42 [2024-11-24 02:08:32,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:08:32,363 INFO L471 AbstractCegarLoop]: Abstraction has 609 states and 823 transitions. [2024-11-24 02:08:32,364 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-24 02:08:32,364 INFO L276 IsEmpty]: Start isEmpty. Operand 609 states and 823 transitions. [2024-11-24 02:08:32,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2024-11-24 02:08:32,369 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:08:32,370 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 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] [2024-11-24 02:08:32,370 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-24 02:08:32,370 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 02:08:32,371 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:08:32,371 INFO L85 PathProgramCache]: Analyzing trace with hash 2068030408, now seen corresponding path program 1 times [2024-11-24 02:08:32,371 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:08:32,372 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1016727482] [2024-11-24 02:08:32,372 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:08:32,372 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:08:32,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:08:33,583 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-24 02:08:33,584 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:08:33,584 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1016727482] [2024-11-24 02:08:33,584 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1016727482] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:08:33,584 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:08:33,584 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 02:08:33,585 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1680490219] [2024-11-24 02:08:33,585 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:08:33,586 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 02:08:33,586 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:08:33,587 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 02:08:33,587 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 02:08:33,587 INFO L87 Difference]: Start difference. First operand 609 states and 823 transitions. Second operand has 5 states, 5 states have (on average 7.0) internal successors, (35), 5 states have internal predecessors, (35), 3 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-24 02:08:33,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:08:33,833 INFO L93 Difference]: Finished difference Result 1198 states and 1630 transitions. [2024-11-24 02:08:33,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 02:08:33,834 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 5 states have internal predecessors, (35), 3 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 52 [2024-11-24 02:08:33,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:08:33,848 INFO L225 Difference]: With dead ends: 1198 [2024-11-24 02:08:33,848 INFO L226 Difference]: Without dead ends: 1189 [2024-11-24 02:08:33,849 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-24 02:08:33,850 INFO L435 NwaCegarLoop]: 432 mSDtfsCounter, 410 mSDsluCounter, 1270 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 410 SdHoareTripleChecker+Valid, 1702 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 02:08:33,851 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [410 Valid, 1702 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 02:08:33,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1189 states. [2024-11-24 02:08:33,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1189 to 1183. [2024-11-24 02:08:33,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1183 states, 937 states have (on average 1.3553895410885806) internal successors, (1270), 953 states have internal predecessors, (1270), 167 states have call successors, (167), 79 states have call predecessors, (167), 78 states have return successors, (174), 166 states have call predecessors, (174), 166 states have call successors, (174) [2024-11-24 02:08:33,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1183 states to 1183 states and 1611 transitions. [2024-11-24 02:08:33,987 INFO L78 Accepts]: Start accepts. Automaton has 1183 states and 1611 transitions. Word has length 52 [2024-11-24 02:08:33,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:08:33,987 INFO L471 AbstractCegarLoop]: Abstraction has 1183 states and 1611 transitions. [2024-11-24 02:08:33,988 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 5 states have internal predecessors, (35), 3 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-24 02:08:33,989 INFO L276 IsEmpty]: Start isEmpty. Operand 1183 states and 1611 transitions. [2024-11-24 02:08:34,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-11-24 02:08:34,007 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:08:34,008 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:08:34,008 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-24 02:08:34,008 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 02:08:34,009 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:08:34,009 INFO L85 PathProgramCache]: Analyzing trace with hash -459250381, now seen corresponding path program 1 times [2024-11-24 02:08:34,009 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:08:34,009 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [210400684] [2024-11-24 02:08:34,009 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:08:34,009 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:08:34,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:08:34,810 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2024-11-24 02:08:34,811 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:08:34,811 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [210400684] [2024-11-24 02:08:34,811 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [210400684] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:08:34,811 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:08:34,812 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 02:08:34,814 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [806267875] [2024-11-24 02:08:34,814 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:08:34,815 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 02:08:34,815 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:08:34,815 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 02:08:34,816 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 02:08:34,816 INFO L87 Difference]: Start difference. First operand 1183 states and 1611 transitions. Second operand has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2024-11-24 02:08:34,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:08:34,998 INFO L93 Difference]: Finished difference Result 2576 states and 3529 transitions. [2024-11-24 02:08:34,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 02:08:34,999 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 162 [2024-11-24 02:08:34,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:08:35,017 INFO L225 Difference]: With dead ends: 2576 [2024-11-24 02:08:35,017 INFO L226 Difference]: Without dead ends: 1413 [2024-11-24 02:08:35,021 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 02:08:35,025 INFO L435 NwaCegarLoop]: 448 mSDtfsCounter, 115 mSDsluCounter, 392 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 840 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 02:08:35,025 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 840 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 02:08:35,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1413 states. [2024-11-24 02:08:35,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1413 to 1404. [2024-11-24 02:08:35,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1404 states, 1135 states have (on average 1.377092511013216) internal successors, (1563), 1151 states have internal predecessors, (1563), 180 states have call successors, (180), 89 states have call predecessors, (180), 88 states have return successors, (187), 179 states have call predecessors, (187), 179 states have call successors, (187) [2024-11-24 02:08:35,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1404 states to 1404 states and 1930 transitions. [2024-11-24 02:08:35,128 INFO L78 Accepts]: Start accepts. Automaton has 1404 states and 1930 transitions. Word has length 162 [2024-11-24 02:08:35,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:08:35,129 INFO L471 AbstractCegarLoop]: Abstraction has 1404 states and 1930 transitions. [2024-11-24 02:08:35,129 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2024-11-24 02:08:35,131 INFO L276 IsEmpty]: Start isEmpty. Operand 1404 states and 1930 transitions. [2024-11-24 02:08:35,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2024-11-24 02:08:35,136 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:08:35,136 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:08:35,136 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-24 02:08:35,136 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 02:08:35,137 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:08:35,137 INFO L85 PathProgramCache]: Analyzing trace with hash 13058567, now seen corresponding path program 1 times [2024-11-24 02:08:35,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:08:35,141 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [45767274] [2024-11-24 02:08:35,141 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:08:35,142 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:08:35,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:08:35,932 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2024-11-24 02:08:35,932 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:08:35,932 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [45767274] [2024-11-24 02:08:35,932 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [45767274] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:08:35,932 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:08:35,933 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 02:08:35,933 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1059878174] [2024-11-24 02:08:35,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:08:35,933 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 02:08:35,934 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:08:35,935 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 02:08:35,935 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 02:08:35,935 INFO L87 Difference]: Start difference. First operand 1404 states and 1930 transitions. Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 3 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2024-11-24 02:08:39,954 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 02:08:40,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:08:40,201 INFO L93 Difference]: Finished difference Result 3846 states and 5283 transitions. [2024-11-24 02:08:40,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 02:08:40,202 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 3 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) Word has length 184 [2024-11-24 02:08:40,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:08:40,223 INFO L225 Difference]: With dead ends: 3846 [2024-11-24 02:08:40,223 INFO L226 Difference]: Without dead ends: 2473 [2024-11-24 02:08:40,229 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 02:08:40,230 INFO L435 NwaCegarLoop]: 518 mSDtfsCounter, 383 mSDsluCounter, 394 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 12 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 383 SdHoareTripleChecker+Valid, 912 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2024-11-24 02:08:40,231 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [383 Valid, 912 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 22 Invalid, 1 Unknown, 0 Unchecked, 4.1s Time] [2024-11-24 02:08:40,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2473 states. [2024-11-24 02:08:40,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2473 to 2464. [2024-11-24 02:08:40,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2464 states, 1981 states have (on average 1.3634528016153458) internal successors, (2701), 2013 states have internal predecessors, (2701), 320 states have call successors, (320), 163 states have call predecessors, (320), 162 states have return successors, (331), 319 states have call predecessors, (331), 319 states have call successors, (331) [2024-11-24 02:08:40,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2464 states to 2464 states and 3352 transitions. [2024-11-24 02:08:40,450 INFO L78 Accepts]: Start accepts. Automaton has 2464 states and 3352 transitions. Word has length 184 [2024-11-24 02:08:40,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:08:40,451 INFO L471 AbstractCegarLoop]: Abstraction has 2464 states and 3352 transitions. [2024-11-24 02:08:40,451 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 3 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2024-11-24 02:08:40,452 INFO L276 IsEmpty]: Start isEmpty. Operand 2464 states and 3352 transitions. [2024-11-24 02:08:40,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2024-11-24 02:08:40,465 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:08:40,465 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:08:40,465 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-24 02:08:40,466 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 02:08:40,466 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:08:40,467 INFO L85 PathProgramCache]: Analyzing trace with hash 1256922363, now seen corresponding path program 1 times [2024-11-24 02:08:40,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:08:40,468 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [245137555] [2024-11-24 02:08:40,468 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:08:40,468 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:08:40,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:08:41,225 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2024-11-24 02:08:41,226 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:08:41,226 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [245137555] [2024-11-24 02:08:41,226 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [245137555] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:08:41,226 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:08:41,226 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 02:08:41,226 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2023057849] [2024-11-24 02:08:41,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:08:41,227 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 02:08:41,227 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:08:41,228 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 02:08:41,229 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 02:08:41,229 INFO L87 Difference]: Start difference. First operand 2464 states and 3352 transitions. Second operand has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2024-11-24 02:08:41,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:08:41,354 INFO L93 Difference]: Finished difference Result 3699 states and 5060 transitions. [2024-11-24 02:08:41,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 02:08:41,355 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 184 [2024-11-24 02:08:41,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:08:41,382 INFO L225 Difference]: With dead ends: 3699 [2024-11-24 02:08:41,382 INFO L226 Difference]: Without dead ends: 2472 [2024-11-24 02:08:41,388 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 02:08:41,389 INFO L435 NwaCegarLoop]: 436 mSDtfsCounter, 3 mSDsluCounter, 429 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 865 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 02:08:41,390 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 865 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 02:08:41,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2472 states. [2024-11-24 02:08:41,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2472 to 2472. [2024-11-24 02:08:41,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2472 states, 1989 states have (on average 1.3619909502262444) internal successors, (2709), 2021 states have internal predecessors, (2709), 320 states have call successors, (320), 163 states have call predecessors, (320), 162 states have return successors, (331), 319 states have call predecessors, (331), 319 states have call successors, (331) [2024-11-24 02:08:41,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2472 states to 2472 states and 3360 transitions. [2024-11-24 02:08:41,546 INFO L78 Accepts]: Start accepts. Automaton has 2472 states and 3360 transitions. Word has length 184 [2024-11-24 02:08:41,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:08:41,547 INFO L471 AbstractCegarLoop]: Abstraction has 2472 states and 3360 transitions. [2024-11-24 02:08:41,547 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2024-11-24 02:08:41,547 INFO L276 IsEmpty]: Start isEmpty. Operand 2472 states and 3360 transitions. [2024-11-24 02:08:41,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2024-11-24 02:08:41,554 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:08:41,554 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:08:41,555 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-24 02:08:41,555 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 02:08:41,555 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:08:41,556 INFO L85 PathProgramCache]: Analyzing trace with hash 2046468476, now seen corresponding path program 1 times [2024-11-24 02:08:41,556 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:08:41,556 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1314669014] [2024-11-24 02:08:41,556 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:08:41,556 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:08:42,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:08:43,263 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2024-11-24 02:08:43,263 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:08:43,263 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1314669014] [2024-11-24 02:08:43,263 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1314669014] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:08:43,264 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:08:43,264 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-24 02:08:43,264 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [9040674] [2024-11-24 02:08:43,264 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:08:43,265 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-24 02:08:43,265 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:08:43,266 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-24 02:08:43,266 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-11-24 02:08:43,267 INFO L87 Difference]: Start difference. First operand 2472 states and 3360 transitions. Second operand has 8 states, 8 states have (on average 13.75) internal successors, (110), 7 states have internal predecessors, (110), 5 states have call successors, (23), 4 states have call predecessors, (23), 2 states have return successors, (22), 5 states have call predecessors, (22), 4 states have call successors, (22) [2024-11-24 02:08:47,296 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 02:08:51,305 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 02:08:55,312 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 02:08:57,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:08:57,368 INFO L93 Difference]: Finished difference Result 3670 states and 5005 transitions. [2024-11-24 02:08:57,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 02:08:57,369 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 13.75) internal successors, (110), 7 states have internal predecessors, (110), 5 states have call successors, (23), 4 states have call predecessors, (23), 2 states have return successors, (22), 5 states have call predecessors, (22), 4 states have call successors, (22) Word has length 186 [2024-11-24 02:08:57,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:08:57,372 INFO L225 Difference]: With dead ends: 3670 [2024-11-24 02:08:57,372 INFO L226 Difference]: Without dead ends: 0 [2024-11-24 02:08:57,380 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2024-11-24 02:08:57,382 INFO L435 NwaCegarLoop]: 256 mSDtfsCounter, 498 mSDsluCounter, 780 mSDsCounter, 0 mSdLazyCounter, 763 mSolverCounterSat, 140 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 504 SdHoareTripleChecker+Valid, 1036 SdHoareTripleChecker+Invalid, 906 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 140 IncrementalHoareTripleChecker+Valid, 763 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.9s IncrementalHoareTripleChecker+Time [2024-11-24 02:08:57,383 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [504 Valid, 1036 Invalid, 906 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [140 Valid, 763 Invalid, 3 Unknown, 0 Unchecked, 13.9s Time] [2024-11-24 02:08:57,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-24 02:08:57,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-24 02:08:57,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 02:08:57,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-24 02:08:57,387 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 186 [2024-11-24 02:08:57,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:08:57,388 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-24 02:08:57,388 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 13.75) internal successors, (110), 7 states have internal predecessors, (110), 5 states have call successors, (23), 4 states have call predecessors, (23), 2 states have return successors, (22), 5 states have call predecessors, (22), 4 states have call successors, (22) [2024-11-24 02:08:57,388 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-24 02:08:57,388 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-24 02:08:57,391 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-24 02:08:57,392 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-24 02:08:57,394 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2024-11-24 02:08:57,396 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-24 02:09:02,602 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-24 02:09:02,623 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.11 02:09:02 BoogieIcfgContainer [2024-11-24 02:09:02,623 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-24 02:09:02,624 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-24 02:09:02,624 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-24 02:09:02,624 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-24 02:09:02,625 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 02:08:26" (3/4) ... [2024-11-24 02:09:02,628 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-11-24 02:09:02,634 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure skb_put [2024-11-24 02:09:02,635 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure #Ultimate.C_memset#5 [2024-11-24 02:09:02,635 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure #Ultimate.C_memset#4 [2024-11-24 02:09:02,635 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure #Ultimate.C_memset#7 [2024-11-24 02:09:02,635 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_error [2024-11-24 02:09:02,635 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure #Ultimate.C_memset#6 [2024-11-24 02:09:02,635 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure #Ultimate.C_memset#1 [2024-11-24 02:09:02,635 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure netdev_warn [2024-11-24 02:09:02,635 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure #Ultimate.C_memset#0 [2024-11-24 02:09:02,635 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure skb_pull [2024-11-24 02:09:02,635 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure #Ultimate.C_memset#3 [2024-11-24 02:09:02,636 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure #Ultimate.C_memset#2 [2024-11-24 02:09:02,636 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_stop [2024-11-24 02:09:02,636 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure #Ultimate.C_memset#9 [2024-11-24 02:09:02,636 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure #Ultimate.C_memset#8 [2024-11-24 02:09:02,636 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv__builtin_expect [2024-11-24 02:09:02,636 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure usbnet_disconnect [2024-11-24 02:09:02,636 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure put_unaligned_le16 [2024-11-24 02:09:02,636 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure skb_push [2024-11-24 02:09:02,636 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_set_remove [2024-11-24 02:09:02,636 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure skb_clone [2024-11-24 02:09:02,636 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2024-11-24 02:09:02,637 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_skb_free [2024-11-24 02:09:02,637 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure usb_free_urb [2024-11-24 02:09:02,637 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure eem_rx_fixup [2024-11-24 02:09:02,637 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_malloc [2024-11-24 02:09:02,637 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure crc32_le [2024-11-24 02:09:02,637 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_zalloc [2024-11-24 02:09:02,637 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure skb_trim [2024-11-24 02:09:02,637 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure dev_kfree_skb_any [2024-11-24 02:09:02,638 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure eem_tx_fixup [2024-11-24 02:09:02,658 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 131 nodes and edges [2024-11-24 02:09:02,660 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 54 nodes and edges [2024-11-24 02:09:02,662 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2024-11-24 02:09:02,664 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2024-11-24 02:09:02,666 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-24 02:09:02,668 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-24 02:09:02,702 WARN L216 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((\old(last_index) == 0) && (last_index == 0)) [2024-11-24 02:09:02,702 WARN L216 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((\old(last_index) == 0) && (last_index == 0)) [2024-11-24 02:09:02,705 WARN L216 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((\old(last_index) == 0) && (0 == ((long) deleted_index + 1))) && (i == 0)) && (last_index == 0)) [2024-11-24 02:09:02,834 WARN L141 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((\old(last_index) == 0) && (last_index == 0)) [2024-11-24 02:09:02,835 WARN L141 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((\old(last_index) == 0) && (last_index == 0)) [2024-11-24 02:09:02,840 WARN L141 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((\old(last_index) == 0) && (0 == ((long) deleted_index + 1))) && (i == 0)) && (last_index == 0)) [2024-11-24 02:09:02,887 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de4f6356-2bf9-4cc5-ad2b-7d5e1cceedfb/bin/uautomizer-verify-LYvppIcaGC/witness.graphml [2024-11-24 02:09:02,887 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de4f6356-2bf9-4cc5-ad2b-7d5e1cceedfb/bin/uautomizer-verify-LYvppIcaGC/witness.yml [2024-11-24 02:09:02,887 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-24 02:09:02,888 INFO L158 Benchmark]: Toolchain (without parser) took 45406.47ms. Allocated memory was 117.4MB in the beginning and 545.3MB in the end (delta: 427.8MB). Free memory was 83.9MB in the beginning and 364.2MB in the end (delta: -280.4MB). Peak memory consumption was 147.2MB. Max. memory is 16.1GB. [2024-11-24 02:09:02,888 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 117.4MB. Free memory is still 73.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 02:09:02,888 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1709.89ms. Allocated memory is still 117.4MB. Free memory was 83.9MB in the beginning and 38.3MB in the end (delta: 45.6MB). Peak memory consumption was 72.2MB. Max. memory is 16.1GB. [2024-11-24 02:09:02,889 INFO L158 Benchmark]: Boogie Procedure Inliner took 170.31ms. Allocated memory is still 117.4MB. Free memory was 38.2MB in the beginning and 63.1MB in the end (delta: -24.9MB). Peak memory consumption was 17.6MB. Max. memory is 16.1GB. [2024-11-24 02:09:02,889 INFO L158 Benchmark]: Boogie Preprocessor took 324.23ms. Allocated memory is still 117.4MB. Free memory was 63.1MB in the beginning and 31.5MB in the end (delta: 31.6MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2024-11-24 02:09:02,890 INFO L158 Benchmark]: RCFGBuilder took 6685.94ms. Allocated memory was 117.4MB in the beginning and 176.2MB in the end (delta: 58.7MB). Free memory was 31.5MB in the beginning and 100.8MB in the end (delta: -69.3MB). Peak memory consumption was 50.0MB. Max. memory is 16.1GB. [2024-11-24 02:09:02,890 INFO L158 Benchmark]: TraceAbstraction took 36242.23ms. Allocated memory was 176.2MB in the beginning and 545.3MB in the end (delta: 369.1MB). Free memory was 99.6MB in the beginning and 385.4MB in the end (delta: -285.8MB). Peak memory consumption was 243.3MB. Max. memory is 16.1GB. [2024-11-24 02:09:02,890 INFO L158 Benchmark]: Witness Printer took 263.00ms. Allocated memory is still 545.3MB. Free memory was 385.4MB in the beginning and 364.2MB in the end (delta: 21.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-24 02:09:02,892 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 117.4MB. Free memory is still 73.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1709.89ms. Allocated memory is still 117.4MB. Free memory was 83.9MB in the beginning and 38.3MB in the end (delta: 45.6MB). Peak memory consumption was 72.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 170.31ms. Allocated memory is still 117.4MB. Free memory was 38.2MB in the beginning and 63.1MB in the end (delta: -24.9MB). Peak memory consumption was 17.6MB. Max. memory is 16.1GB. * Boogie Preprocessor took 324.23ms. Allocated memory is still 117.4MB. Free memory was 63.1MB in the beginning and 31.5MB in the end (delta: 31.6MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * RCFGBuilder took 6685.94ms. Allocated memory was 117.4MB in the beginning and 176.2MB in the end (delta: 58.7MB). Free memory was 31.5MB in the beginning and 100.8MB in the end (delta: -69.3MB). Peak memory consumption was 50.0MB. Max. memory is 16.1GB. * TraceAbstraction took 36242.23ms. Allocated memory was 176.2MB in the beginning and 545.3MB in the end (delta: 369.1MB). Free memory was 99.6MB in the beginning and 385.4MB in the end (delta: -285.8MB). Peak memory consumption was 243.3MB. Max. memory is 16.1GB. * Witness Printer took 263.00ms. Allocated memory is still 545.3MB. Free memory was 385.4MB in the beginning and 364.2MB in the end (delta: 21.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 5489]: Unsoundness Warning Ignoring inline assembler instruction C: __asm__ ("bswapl %0": "=r" (val): "0" (val)); [5489] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 5681]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 32 procedures, 369 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 30.9s, OverallIterations: 6, TraceHistogramMax: 5, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 23.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 5 mSolverCounterUnknown, 1812 SdHoareTripleChecker+Valid, 22.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1806 mSDsluCounter, 6244 SdHoareTripleChecker+Invalid, 22.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3696 mSDsCounter, 158 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 849 IncrementalHoareTripleChecker+Invalid, 1012 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 158 mSolverCounterUnsat, 2548 mSDtfsCounter, 849 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 34 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2472occurred in iteration=5, InterpolantAutomatonStates: 22, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.8s AutomataMinimizationTime, 6 MinimizatonAttempts, 24 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 3.1s InterpolantComputationTime, 810 NumberOfCodeBlocks, 810 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 804 ConstructedInterpolants, 0 QuantifiedInterpolants, 1133 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 364/364 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 5942]: Location Invariant Derived location invariant: ((\old(last_index) == 0) && (last_index == 0)) - InvariantResult [Line: 5830]: Location Invariant Derived location invariant: ((\old(last_index) == 0) && (last_index == 0)) - InvariantResult [Line: 6432]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 6418]: Loop Invariant Derived loop invariant: ((((\old(last_index) == 0) && (0 == ((long) deleted_index + 1))) && (i == 0)) && (last_index == 0)) RESULT: Ultimate proved your program to be correct! [2024-11-24 02:09:02,928 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de4f6356-2bf9-4cc5-ad2b-7d5e1cceedfb/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE