./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 551b0097 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/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 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 5ad15ea2ee4e38087fdbbd25111673bb935102e85f8e91f44e32009dacc41114 --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-09 18:29:19,462 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-09 18:29:19,517 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2025-01-09 18:29:19,525 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-09 18:29:19,525 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-09 18:29:19,547 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-09 18:29:19,548 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-09 18:29:19,548 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-09 18:29:19,549 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-01-09 18:29:19,549 INFO L153 SettingsManager]: * Use memory slicer=true [2025-01-09 18:29:19,550 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-09 18:29:19,550 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-09 18:29:19,550 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-09 18:29:19,550 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-09 18:29:19,551 INFO L153 SettingsManager]: * Use SBE=true [2025-01-09 18:29:19,551 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-09 18:29:19,551 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-09 18:29:19,551 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-09 18:29:19,551 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-09 18:29:19,551 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-09 18:29:19,551 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-09 18:29:19,551 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-09 18:29:19,552 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-09 18:29:19,552 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-09 18:29:19,552 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-09 18:29:19,552 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-09 18:29:19,552 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 18:29:19,552 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 18:29:19,552 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 18:29:19,552 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 18:29:19,552 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-09 18:29:19,553 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 18:29:19,553 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 18:29:19,553 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 18:29:19,553 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 18:29:19,553 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-09 18:29:19,553 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-09 18:29:19,553 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-09 18:29:19,553 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-09 18:29:19,553 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-09 18:29:19,553 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-01-09 18:29:19,553 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-09 18:29:19,553 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-09 18:29:19,553 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-09 18:29:19,554 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-09 18:29:19,554 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 -> /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5ad15ea2ee4e38087fdbbd25111673bb935102e85f8e91f44e32009dacc41114 [2025-01-09 18:29:19,772 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-09 18:29:19,780 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-09 18:29:19,782 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-09 18:29:19,783 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-09 18:29:19,783 INFO L274 PluginConnector]: CDTParser initialized [2025-01-09 18:29:19,784 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--usb--cdc_eem.ko-entry_point.cil.out.i [2025-01-09 18:29:20,878 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/d022fe16e/abbabe84af404ebab48fd4b184300a74/FLAGbae8c82be [2025-01-09 18:29:21,352 INFO L384 CDTParser]: Found 1 translation units. [2025-01-09 18:29:21,353 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--usb--cdc_eem.ko-entry_point.cil.out.i [2025-01-09 18:29:21,383 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/d022fe16e/abbabe84af404ebab48fd4b184300a74/FLAGbae8c82be [2025-01-09 18:29:21,447 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/d022fe16e/abbabe84af404ebab48fd4b184300a74 [2025-01-09 18:29:21,449 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-09 18:29:21,450 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-09 18:29:21,450 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-09 18:29:21,451 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-09 18:29:21,453 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-09 18:29:21,454 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 06:29:21" (1/1) ... [2025-01-09 18:29:21,454 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@74b3396f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 06:29:21, skipping insertion in model container [2025-01-09 18:29:21,455 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 06:29:21" (1/1) ... [2025-01-09 18:29:21,529 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-09 18:29:22,005 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/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] [2025-01-09 18:29:22,175 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 18:29:22,197 INFO L200 MainTranslator]: Completed pre-run [2025-01-09 18:29:22,352 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("bswapl %0": "=r" (val): "0" (val)); [5489] [2025-01-09 18:29:22,365 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/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] [2025-01-09 18:29:22,421 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 18:29:22,447 INFO L204 MainTranslator]: Completed translation [2025-01-09 18:29:22,448 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 06:29:22 WrapperNode [2025-01-09 18:29:22,449 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-09 18:29:22,450 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-09 18:29:22,450 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-09 18:29:22,450 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-09 18:29:22,454 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 06:29:22" (1/1) ... [2025-01-09 18:29:22,485 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 06:29:22" (1/1) ... [2025-01-09 18:29:22,527 INFO L138 Inliner]: procedures = 125, calls = 382, calls flagged for inlining = 59, calls inlined = 54, statements flattened = 1172 [2025-01-09 18:29:22,527 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-09 18:29:22,528 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-09 18:29:22,528 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-09 18:29:22,528 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-09 18:29:22,535 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 06:29:22" (1/1) ... [2025-01-09 18:29:22,535 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 06:29:22" (1/1) ... [2025-01-09 18:29:22,549 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 06:29:22" (1/1) ... [2025-01-09 18:29:22,673 INFO L175 MemorySlicer]: Split 232 memory accesses to 10 slices as follows [2, 8, 2, 121, 3, 8, 7, 19, 44, 18]. 52 percent of accesses are in the largest equivalence class. The 67 initializations are split as follows [2, 8, 0, 34, 0, 8, 0, 0, 0, 15]. The 97 writes are split as follows [0, 0, 1, 25, 1, 0, 6, 19, 44, 1]. [2025-01-09 18:29:22,674 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 06:29:22" (1/1) ... [2025-01-09 18:29:22,674 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 06:29:22" (1/1) ... [2025-01-09 18:29:22,714 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 06:29:22" (1/1) ... [2025-01-09 18:29:22,719 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 06:29:22" (1/1) ... [2025-01-09 18:29:22,727 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 06:29:22" (1/1) ... [2025-01-09 18:29:22,736 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 06:29:22" (1/1) ... [2025-01-09 18:29:22,749 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 06:29:22" (1/1) ... [2025-01-09 18:29:22,763 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-09 18:29:22,765 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-09 18:29:22,765 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-09 18:29:22,765 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-09 18:29:22,766 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 06:29:22" (1/1) ... [2025-01-09 18:29:22,770 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 18:29:22,778 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 18:29:22,790 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-01-09 18:29:22,792 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-01-09 18:29:22,809 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2025-01-09 18:29:22,809 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2025-01-09 18:29:22,810 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2025-01-09 18:29:22,810 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2025-01-09 18:29:22,810 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2025-01-09 18:29:22,810 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2025-01-09 18:29:22,810 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2025-01-09 18:29:22,810 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#7 [2025-01-09 18:29:22,810 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#8 [2025-01-09 18:29:22,810 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#9 [2025-01-09 18:29:22,810 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#0 [2025-01-09 18:29:22,810 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#1 [2025-01-09 18:29:22,810 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#2 [2025-01-09 18:29:22,810 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#3 [2025-01-09 18:29:22,810 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#4 [2025-01-09 18:29:22,811 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#5 [2025-01-09 18:29:22,811 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#6 [2025-01-09 18:29:22,811 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#7 [2025-01-09 18:29:22,811 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#8 [2025-01-09 18:29:22,811 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#9 [2025-01-09 18:29:22,811 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2025-01-09 18:29:22,811 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2025-01-09 18:29:22,811 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2025-01-09 18:29:22,811 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2025-01-09 18:29:22,811 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2025-01-09 18:29:22,811 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2025-01-09 18:29:22,811 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2025-01-09 18:29:22,811 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#7 [2025-01-09 18:29:22,812 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#8 [2025-01-09 18:29:22,812 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#9 [2025-01-09 18:29:22,812 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2025-01-09 18:29:22,812 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2025-01-09 18:29:22,812 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-01-09 18:29:22,812 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-01-09 18:29:22,812 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-01-09 18:29:22,812 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-01-09 18:29:22,812 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2025-01-09 18:29:22,812 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2025-01-09 18:29:22,812 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2025-01-09 18:29:22,812 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2025-01-09 18:29:22,812 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2025-01-09 18:29:22,813 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2025-01-09 18:29:22,813 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_disconnect [2025-01-09 18:29:22,813 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_disconnect [2025-01-09 18:29:22,813 INFO L130 BoogieDeclarations]: Found specification of procedure skb_push [2025-01-09 18:29:22,813 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_push [2025-01-09 18:29:22,813 INFO L130 BoogieDeclarations]: Found specification of procedure skb_clone [2025-01-09 18:29:22,814 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_clone [2025-01-09 18:29:22,814 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free [2025-01-09 18:29:22,814 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free [2025-01-09 18:29:22,814 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2025-01-09 18:29:22,814 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2025-01-09 18:29:22,814 INFO L130 BoogieDeclarations]: Found specification of procedure skb_trim [2025-01-09 18:29:22,814 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_trim [2025-01-09 18:29:22,814 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-01-09 18:29:22,814 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-01-09 18:29:22,814 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-01-09 18:29:22,814 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-01-09 18:29:22,814 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2025-01-09 18:29:22,814 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2025-01-09 18:29:22,814 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2025-01-09 18:29:22,814 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2025-01-09 18:29:22,814 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2025-01-09 18:29:22,814 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2025-01-09 18:29:22,814 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2025-01-09 18:29:22,814 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2025-01-09 18:29:22,814 INFO L130 BoogieDeclarations]: Found specification of procedure skb_pull [2025-01-09 18:29:22,814 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_pull [2025-01-09 18:29:22,814 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2025-01-09 18:29:22,814 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2025-01-09 18:29:22,814 INFO L130 BoogieDeclarations]: Found specification of procedure put_unaligned_le16 [2025-01-09 18:29:22,815 INFO L138 BoogieDeclarations]: Found implementation of procedure put_unaligned_le16 [2025-01-09 18:29:22,815 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2025-01-09 18:29:22,815 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2025-01-09 18:29:22,815 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2025-01-09 18:29:22,815 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#3 [2025-01-09 18:29:22,815 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#4 [2025-01-09 18:29:22,816 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#5 [2025-01-09 18:29:22,816 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#6 [2025-01-09 18:29:22,816 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#7 [2025-01-09 18:29:22,816 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#8 [2025-01-09 18:29:22,816 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#9 [2025-01-09 18:29:22,817 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2025-01-09 18:29:22,817 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2025-01-09 18:29:22,817 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2025-01-09 18:29:22,817 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#3 [2025-01-09 18:29:22,817 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#4 [2025-01-09 18:29:22,817 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#5 [2025-01-09 18:29:22,817 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#6 [2025-01-09 18:29:22,817 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#7 [2025-01-09 18:29:22,817 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#8 [2025-01-09 18:29:22,817 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#9 [2025-01-09 18:29:22,817 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-01-09 18:29:22,817 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-01-09 18:29:22,817 INFO L130 BoogieDeclarations]: Found specification of procedure eem_rx_fixup [2025-01-09 18:29:22,817 INFO L138 BoogieDeclarations]: Found implementation of procedure eem_rx_fixup [2025-01-09 18:29:22,817 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-01-09 18:29:22,817 INFO L130 BoogieDeclarations]: Found specification of procedure crc32_le [2025-01-09 18:29:22,817 INFO L138 BoogieDeclarations]: Found implementation of procedure crc32_le [2025-01-09 18:29:22,817 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2025-01-09 18:29:22,817 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2025-01-09 18:29:22,817 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-09 18:29:22,817 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-01-09 18:29:22,817 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-01-09 18:29:22,818 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-01-09 18:29:22,818 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-01-09 18:29:22,818 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2025-01-09 18:29:22,818 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2025-01-09 18:29:22,818 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2025-01-09 18:29:22,818 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2025-01-09 18:29:22,818 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2025-01-09 18:29:22,818 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#8 [2025-01-09 18:29:22,818 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#9 [2025-01-09 18:29:22,818 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-01-09 18:29:22,818 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-01-09 18:29:22,818 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-01-09 18:29:22,818 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2025-01-09 18:29:22,818 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2025-01-09 18:29:22,818 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2025-01-09 18:29:22,818 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2025-01-09 18:29:22,818 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2025-01-09 18:29:22,818 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2025-01-09 18:29:22,818 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#9 [2025-01-09 18:29:22,818 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_remove [2025-01-09 18:29:22,818 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_remove [2025-01-09 18:29:22,818 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2025-01-09 18:29:22,818 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2025-01-09 18:29:22,818 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-01-09 18:29:22,818 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2025-01-09 18:29:22,818 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2025-01-09 18:29:22,818 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2025-01-09 18:29:22,818 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2025-01-09 18:29:22,818 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2025-01-09 18:29:22,818 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2025-01-09 18:29:22,818 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2025-01-09 18:29:22,818 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2025-01-09 18:29:22,818 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#8 [2025-01-09 18:29:22,818 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#9 [2025-01-09 18:29:22,818 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2025-01-09 18:29:22,818 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2025-01-09 18:29:22,818 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_warn [2025-01-09 18:29:22,818 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_warn [2025-01-09 18:29:22,819 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-01-09 18:29:22,819 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-01-09 18:29:22,819 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-01-09 18:29:22,819 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-01-09 18:29:22,819 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-01-09 18:29:22,819 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2025-01-09 18:29:22,819 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2025-01-09 18:29:22,819 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2025-01-09 18:29:22,819 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2025-01-09 18:29:22,819 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2025-01-09 18:29:22,819 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#0 [2025-01-09 18:29:22,819 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#1 [2025-01-09 18:29:22,819 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#2 [2025-01-09 18:29:22,819 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#3 [2025-01-09 18:29:22,819 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#4 [2025-01-09 18:29:22,819 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#5 [2025-01-09 18:29:22,819 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#6 [2025-01-09 18:29:22,819 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#7 [2025-01-09 18:29:22,820 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#8 [2025-01-09 18:29:22,820 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#9 [2025-01-09 18:29:22,820 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2025-01-09 18:29:22,820 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2025-01-09 18:29:22,820 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-09 18:29:22,820 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-09 18:29:22,820 INFO L130 BoogieDeclarations]: Found specification of procedure eem_tx_fixup [2025-01-09 18:29:22,820 INFO L138 BoogieDeclarations]: Found implementation of procedure eem_tx_fixup [2025-01-09 18:29:23,133 INFO L234 CfgBuilder]: Building ICFG [2025-01-09 18:29:23,136 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-09 18:29:23,153 INFO L727 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2025-01-09 18:29:28,020 INFO L? ?]: Removed 574 outVars from TransFormulas that were not future-live. [2025-01-09 18:29:28,020 INFO L283 CfgBuilder]: Performing block encoding [2025-01-09 18:29:28,035 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-09 18:29:28,035 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2025-01-09 18:29:28,035 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 06:29:28 BoogieIcfgContainer [2025-01-09 18:29:28,035 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-09 18:29:28,037 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-09 18:29:28,037 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-09 18:29:28,040 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-09 18:29:28,040 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.01 06:29:21" (1/3) ... [2025-01-09 18:29:28,040 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@655abc72 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 06:29:28, skipping insertion in model container [2025-01-09 18:29:28,041 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 06:29:22" (2/3) ... [2025-01-09 18:29:28,041 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@655abc72 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 06:29:28, skipping insertion in model container [2025-01-09 18:29:28,041 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 06:29:28" (3/3) ... [2025-01-09 18:29:28,041 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 [2025-01-09 18:29:28,051 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-09 18:29:28,052 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. [2025-01-09 18:29:28,102 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-09 18:29:28,113 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;@299d1921, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-09 18:29:28,113 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-01-09 18:29:28,116 INFO L276 IsEmpty]: Start isEmpty. Operand has 336 states, 261 states have (on average 1.3793103448275863) internal successors, (360), 271 states have internal predecessors, (360), 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) [2025-01-09 18:29:28,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2025-01-09 18:29:28,122 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 18:29:28,122 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] [2025-01-09 18:29:28,123 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 18:29:28,125 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 18:29:28,126 INFO L85 PathProgramCache]: Analyzing trace with hash -1736265041, now seen corresponding path program 1 times [2025-01-09 18:29:28,130 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 18:29:28,131 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2129122017] [2025-01-09 18:29:28,131 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 18:29:28,131 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 18:29:28,448 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 42 statements into 1 equivalence classes. [2025-01-09 18:29:28,570 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 42 of 42 statements. [2025-01-09 18:29:28,571 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 18:29:28,571 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 18:29:28,878 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-01-09 18:29:28,879 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 18:29:28,879 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2129122017] [2025-01-09 18:29:28,879 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2129122017] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 18:29:28,879 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 18:29:28,880 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-09 18:29:28,881 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1808321712] [2025-01-09 18:29:28,885 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 18:29:28,892 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 18:29:28,892 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 18:29:28,921 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 18:29:28,921 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 18:29:28,924 INFO L87 Difference]: Start difference. First operand has 336 states, 261 states have (on average 1.3793103448275863) internal successors, (360), 271 states have internal predecessors, (360), 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) [2025-01-09 18:29:32,966 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-01-09 18:29:33,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 18:29:33,095 INFO L93 Difference]: Finished difference Result 956 states and 1357 transitions. [2025-01-09 18:29:33,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 18:29:33,097 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 [2025-01-09 18:29:33,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 18:29:33,105 INFO L225 Difference]: With dead ends: 956 [2025-01-09 18:29:33,105 INFO L226 Difference]: Without dead ends: 609 [2025-01-09 18:29:33,108 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 [2025-01-09 18:29:33,110 INFO L435 NwaCegarLoop]: 458 mSDtfsCounter, 397 mSDsluCounter, 431 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s 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 [2025-01-09 18:29:33,110 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] [2025-01-09 18:29:33,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 609 states. [2025-01-09 18:29:33,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 609 to 609. [2025-01-09 18:29:33,173 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) [2025-01-09 18:29:33,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 609 states to 609 states and 823 transitions. [2025-01-09 18:29:33,181 INFO L78 Accepts]: Start accepts. Automaton has 609 states and 823 transitions. Word has length 42 [2025-01-09 18:29:33,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 18:29:33,181 INFO L471 AbstractCegarLoop]: Abstraction has 609 states and 823 transitions. [2025-01-09 18:29:33,182 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) [2025-01-09 18:29:33,182 INFO L276 IsEmpty]: Start isEmpty. Operand 609 states and 823 transitions. [2025-01-09 18:29:33,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2025-01-09 18:29:33,184 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 18:29:33,184 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] [2025-01-09 18:29:33,184 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-01-09 18:29:33,184 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 18:29:33,185 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 18:29:33,185 INFO L85 PathProgramCache]: Analyzing trace with hash -1753857091, now seen corresponding path program 1 times [2025-01-09 18:29:33,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 18:29:33,185 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [611083824] [2025-01-09 18:29:33,185 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 18:29:33,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 18:29:33,406 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 52 statements into 1 equivalence classes. [2025-01-09 18:29:33,439 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 52 of 52 statements. [2025-01-09 18:29:33,442 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 18:29:33,442 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 18:29:33,724 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2025-01-09 18:29:33,724 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 18:29:33,724 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [611083824] [2025-01-09 18:29:33,724 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [611083824] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 18:29:33,725 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 18:29:33,725 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-01-09 18:29:33,725 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1381303424] [2025-01-09 18:29:33,725 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 18:29:33,726 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-09 18:29:33,726 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 18:29:33,727 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-09 18:29:33,727 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-01-09 18:29:33,727 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) [2025-01-09 18:29:33,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 18:29:33,888 INFO L93 Difference]: Finished difference Result 1198 states and 1630 transitions. [2025-01-09 18:29:33,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-09 18:29:33,889 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 [2025-01-09 18:29:33,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 18:29:33,898 INFO L225 Difference]: With dead ends: 1198 [2025-01-09 18:29:33,900 INFO L226 Difference]: Without dead ends: 1189 [2025-01-09 18:29:33,900 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2025-01-09 18:29:33,901 INFO L435 NwaCegarLoop]: 432 mSDtfsCounter, 410 mSDsluCounter, 1271 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 410 SdHoareTripleChecker+Valid, 1703 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 [2025-01-09 18:29:33,901 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [410 Valid, 1703 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-09 18:29:33,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1189 states. [2025-01-09 18:29:33,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1189 to 1183. [2025-01-09 18:29:33,965 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) [2025-01-09 18:29:33,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1183 states to 1183 states and 1611 transitions. [2025-01-09 18:29:33,977 INFO L78 Accepts]: Start accepts. Automaton has 1183 states and 1611 transitions. Word has length 52 [2025-01-09 18:29:33,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 18:29:33,978 INFO L471 AbstractCegarLoop]: Abstraction has 1183 states and 1611 transitions. [2025-01-09 18:29:33,978 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) [2025-01-09 18:29:33,979 INFO L276 IsEmpty]: Start isEmpty. Operand 1183 states and 1611 transitions. [2025-01-09 18:29:33,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2025-01-09 18:29:33,989 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 18:29:33,990 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] [2025-01-09 18:29:33,990 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-01-09 18:29:33,991 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 18:29:33,991 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 18:29:33,991 INFO L85 PathProgramCache]: Analyzing trace with hash 1030427440, now seen corresponding path program 1 times [2025-01-09 18:29:33,993 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 18:29:33,993 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [204236182] [2025-01-09 18:29:33,993 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 18:29:33,994 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 18:29:34,270 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 162 statements into 1 equivalence classes. [2025-01-09 18:29:34,291 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 162 of 162 statements. [2025-01-09 18:29:34,292 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 18:29:34,292 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 18:29:34,421 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2025-01-09 18:29:34,422 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 18:29:34,422 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [204236182] [2025-01-09 18:29:34,422 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [204236182] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 18:29:34,422 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 18:29:34,422 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-09 18:29:34,422 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [442802523] [2025-01-09 18:29:34,422 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 18:29:34,423 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 18:29:34,423 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 18:29:34,424 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 18:29:34,424 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 18:29:34,424 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) [2025-01-09 18:29:34,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 18:29:34,508 INFO L93 Difference]: Finished difference Result 2576 states and 3529 transitions. [2025-01-09 18:29:34,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 18:29:34,509 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 [2025-01-09 18:29:34,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 18:29:34,518 INFO L225 Difference]: With dead ends: 2576 [2025-01-09 18:29:34,519 INFO L226 Difference]: Without dead ends: 1413 [2025-01-09 18:29:34,522 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 [2025-01-09 18:29:34,525 INFO L435 NwaCegarLoop]: 448 mSDtfsCounter, 115 mSDsluCounter, 392 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s 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, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 18:29:34,525 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 840 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 18:29:34,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1413 states. [2025-01-09 18:29:34,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1413 to 1404. [2025-01-09 18:29:34,626 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) [2025-01-09 18:29:34,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1404 states to 1404 states and 1930 transitions. [2025-01-09 18:29:34,647 INFO L78 Accepts]: Start accepts. Automaton has 1404 states and 1930 transitions. Word has length 162 [2025-01-09 18:29:34,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 18:29:34,648 INFO L471 AbstractCegarLoop]: Abstraction has 1404 states and 1930 transitions. [2025-01-09 18:29:34,648 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) [2025-01-09 18:29:34,648 INFO L276 IsEmpty]: Start isEmpty. Operand 1404 states and 1930 transitions. [2025-01-09 18:29:34,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2025-01-09 18:29:34,657 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 18:29:34,657 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] [2025-01-09 18:29:34,657 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-01-09 18:29:34,657 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 18:29:34,657 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 18:29:34,657 INFO L85 PathProgramCache]: Analyzing trace with hash 1446177284, now seen corresponding path program 1 times [2025-01-09 18:29:34,657 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 18:29:34,658 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2029836812] [2025-01-09 18:29:34,658 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 18:29:34,658 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 18:29:34,917 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 184 statements into 1 equivalence classes. [2025-01-09 18:29:34,938 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 184 of 184 statements. [2025-01-09 18:29:34,939 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 18:29:34,939 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 18:29:35,077 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2025-01-09 18:29:35,078 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 18:29:35,078 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2029836812] [2025-01-09 18:29:35,078 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2029836812] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 18:29:35,078 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 18:29:35,078 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-09 18:29:35,078 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2129959766] [2025-01-09 18:29:35,078 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 18:29:35,079 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 18:29:35,079 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 18:29:35,079 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 18:29:35,079 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 18:29:35,079 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) [2025-01-09 18:29:39,091 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 [] [2025-01-09 18:29:39,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 18:29:39,268 INFO L93 Difference]: Finished difference Result 3846 states and 5283 transitions. [2025-01-09 18:29:39,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 18:29:39,268 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 [2025-01-09 18:29:39,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 18:29:39,279 INFO L225 Difference]: With dead ends: 3846 [2025-01-09 18:29:39,280 INFO L226 Difference]: Without dead ends: 2473 [2025-01-09 18:29:39,283 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 [2025-01-09 18:29:39,285 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 [2025-01-09 18:29:39,286 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] [2025-01-09 18:29:39,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2473 states. [2025-01-09 18:29:39,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2473 to 2464. [2025-01-09 18:29:39,374 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) [2025-01-09 18:29:39,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2464 states to 2464 states and 3352 transitions. [2025-01-09 18:29:39,386 INFO L78 Accepts]: Start accepts. Automaton has 2464 states and 3352 transitions. Word has length 184 [2025-01-09 18:29:39,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 18:29:39,387 INFO L471 AbstractCegarLoop]: Abstraction has 2464 states and 3352 transitions. [2025-01-09 18:29:39,387 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) [2025-01-09 18:29:39,387 INFO L276 IsEmpty]: Start isEmpty. Operand 2464 states and 3352 transitions. [2025-01-09 18:29:39,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2025-01-09 18:29:39,392 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 18:29:39,393 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] [2025-01-09 18:29:39,393 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-01-09 18:29:39,393 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 18:29:39,393 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 18:29:39,393 INFO L85 PathProgramCache]: Analyzing trace with hash 720926184, now seen corresponding path program 1 times [2025-01-09 18:29:39,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 18:29:39,394 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [604170948] [2025-01-09 18:29:39,394 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 18:29:39,394 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 18:29:39,595 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 184 statements into 1 equivalence classes. [2025-01-09 18:29:39,628 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 184 of 184 statements. [2025-01-09 18:29:39,628 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 18:29:39,628 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 18:29:39,739 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2025-01-09 18:29:39,739 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 18:29:39,740 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [604170948] [2025-01-09 18:29:39,740 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [604170948] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 18:29:39,740 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 18:29:39,740 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-09 18:29:39,740 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1889811204] [2025-01-09 18:29:39,740 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 18:29:39,740 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 18:29:39,740 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 18:29:39,741 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 18:29:39,741 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 18:29:39,741 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) [2025-01-09 18:29:39,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 18:29:39,794 INFO L93 Difference]: Finished difference Result 3699 states and 5060 transitions. [2025-01-09 18:29:39,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 18:29:39,794 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 [2025-01-09 18:29:39,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 18:29:39,804 INFO L225 Difference]: With dead ends: 3699 [2025-01-09 18:29:39,805 INFO L226 Difference]: Without dead ends: 2472 [2025-01-09 18:29:39,808 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 [2025-01-09 18:29:39,808 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 [2025-01-09 18:29:39,808 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] [2025-01-09 18:29:39,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2472 states. [2025-01-09 18:29:39,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2472 to 2472. [2025-01-09 18:29:39,866 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) [2025-01-09 18:29:39,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2472 states to 2472 states and 3360 transitions. [2025-01-09 18:29:39,876 INFO L78 Accepts]: Start accepts. Automaton has 2472 states and 3360 transitions. Word has length 184 [2025-01-09 18:29:39,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 18:29:39,877 INFO L471 AbstractCegarLoop]: Abstraction has 2472 states and 3360 transitions. [2025-01-09 18:29:39,877 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) [2025-01-09 18:29:39,877 INFO L276 IsEmpty]: Start isEmpty. Operand 2472 states and 3360 transitions. [2025-01-09 18:29:39,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2025-01-09 18:29:39,881 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 18:29:39,881 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] [2025-01-09 18:29:39,881 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-01-09 18:29:39,881 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 18:29:39,881 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 18:29:39,881 INFO L85 PathProgramCache]: Analyzing trace with hash -1695570103, now seen corresponding path program 1 times [2025-01-09 18:29:39,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 18:29:39,881 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1989165975] [2025-01-09 18:29:39,881 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 18:29:39,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 18:29:40,070 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 186 statements into 1 equivalence classes. [2025-01-09 18:29:40,094 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 186 of 186 statements. [2025-01-09 18:29:40,095 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 18:29:40,095 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 18:29:40,521 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2025-01-09 18:29:40,521 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 18:29:40,521 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1989165975] [2025-01-09 18:29:40,521 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1989165975] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 18:29:40,521 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 18:29:40,521 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-01-09 18:29:40,521 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1117801664] [2025-01-09 18:29:40,521 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 18:29:40,522 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-01-09 18:29:40,522 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 18:29:40,522 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-01-09 18:29:40,523 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2025-01-09 18:29:40,523 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) [2025-01-09 18:29:44,534 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 [] [2025-01-09 18:29:48,553 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-01-09 18:29:52,560 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-01-09 18:29:53,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 18:29:53,317 INFO L93 Difference]: Finished difference Result 3670 states and 5005 transitions. [2025-01-09 18:29:53,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-09 18:29:53,318 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 [2025-01-09 18:29:53,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 18:29:53,320 INFO L225 Difference]: With dead ends: 3670 [2025-01-09 18:29:53,320 INFO L226 Difference]: Without dead ends: 0 [2025-01-09 18:29:53,326 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2025-01-09 18:29:53,326 INFO L435 NwaCegarLoop]: 256 mSDtfsCounter, 498 mSDsluCounter, 780 mSDsCounter, 0 mSdLazyCounter, 763 mSolverCounterSat, 140 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.6s 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, 12.7s IncrementalHoareTripleChecker+Time [2025-01-09 18:29:53,326 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [504 Valid, 1036 Invalid, 906 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [140 Valid, 763 Invalid, 3 Unknown, 0 Unchecked, 12.7s Time] [2025-01-09 18:29:53,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2025-01-09 18:29:53,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2025-01-09 18:29:53,327 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) [2025-01-09 18:29:53,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2025-01-09 18:29:53,328 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 186 [2025-01-09 18:29:53,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 18:29:53,328 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-01-09 18:29:53,329 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) [2025-01-09 18:29:53,329 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2025-01-09 18:29:53,329 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2025-01-09 18:29:53,331 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2025-01-09 18:29:53,331 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-01-09 18:29:53,333 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2025-01-09 18:29:53,334 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2025-01-09 18:29:55,649 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-01-09 18:29:55,661 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.01 06:29:55 BoogieIcfgContainer [2025-01-09 18:29:55,662 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-01-09 18:29:55,662 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-01-09 18:29:55,662 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-01-09 18:29:55,663 INFO L274 PluginConnector]: Witness Printer initialized [2025-01-09 18:29:55,663 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 06:29:28" (3/4) ... [2025-01-09 18:29:55,665 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-01-09 18:29:55,670 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure skb_put [2025-01-09 18:29:55,670 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure #Ultimate.C_memset#5 [2025-01-09 18:29:55,670 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure #Ultimate.C_memset#4 [2025-01-09 18:29:55,670 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure #Ultimate.C_memset#7 [2025-01-09 18:29:55,670 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_error [2025-01-09 18:29:55,670 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure #Ultimate.C_memset#6 [2025-01-09 18:29:55,670 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure #Ultimate.C_memset#1 [2025-01-09 18:29:55,670 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure netdev_warn [2025-01-09 18:29:55,670 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure #Ultimate.C_memset#0 [2025-01-09 18:29:55,670 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure skb_pull [2025-01-09 18:29:55,670 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure #Ultimate.C_memset#3 [2025-01-09 18:29:55,670 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure #Ultimate.C_memset#2 [2025-01-09 18:29:55,670 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_stop [2025-01-09 18:29:55,670 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure #Ultimate.C_memset#9 [2025-01-09 18:29:55,670 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure #Ultimate.C_memset#8 [2025-01-09 18:29:55,670 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv__builtin_expect [2025-01-09 18:29:55,670 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure usbnet_disconnect [2025-01-09 18:29:55,670 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure put_unaligned_le16 [2025-01-09 18:29:55,670 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure skb_push [2025-01-09 18:29:55,670 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_set_remove [2025-01-09 18:29:55,671 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure skb_clone [2025-01-09 18:29:55,671 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2025-01-09 18:29:55,671 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_skb_free [2025-01-09 18:29:55,671 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure usb_free_urb [2025-01-09 18:29:55,671 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure eem_rx_fixup [2025-01-09 18:29:55,671 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_malloc [2025-01-09 18:29:55,671 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure crc32_le [2025-01-09 18:29:55,671 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_zalloc [2025-01-09 18:29:55,671 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure skb_trim [2025-01-09 18:29:55,671 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure dev_kfree_skb_any [2025-01-09 18:29:55,671 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure eem_tx_fixup [2025-01-09 18:29:55,695 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 131 nodes and edges [2025-01-09 18:29:55,697 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 54 nodes and edges [2025-01-09 18:29:55,698 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2025-01-09 18:29:55,699 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2025-01-09 18:29:55,701 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2025-01-09 18:29:55,702 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2025-01-09 18:29:55,729 WARN L216 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((\old(last_index) == 0) && (last_index == 0)) [2025-01-09 18:29:55,730 WARN L216 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((\old(last_index) == 0) && (last_index == 0)) [2025-01-09 18:29:55,732 WARN L216 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((\old(last_index) == 0) && (0 == ((long) deleted_index + 1))) && (i == 0)) && (last_index == 0)) [2025-01-09 18:29:55,807 WARN L140 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((\old(last_index) == 0) && (last_index == 0)) [2025-01-09 18:29:55,807 WARN L140 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((\old(last_index) == 0) && (last_index == 0)) [2025-01-09 18:29:55,814 WARN L140 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((\old(last_index) == 0) && (0 == ((long) deleted_index + 1))) && (i == 0)) && (last_index == 0)) [2025-01-09 18:29:55,843 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-01-09 18:29:55,844 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.yml [2025-01-09 18:29:55,844 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-01-09 18:29:55,844 INFO L158 Benchmark]: Toolchain (without parser) took 34394.91ms. Allocated memory was 142.6MB in the beginning and 713.0MB in the end (delta: 570.4MB). Free memory was 101.6MB in the beginning and 471.0MB in the end (delta: -369.5MB). Peak memory consumption was 200.6MB. Max. memory is 16.1GB. [2025-01-09 18:29:55,845 INFO L158 Benchmark]: CDTParser took 1.30ms. Allocated memory is still 201.3MB. Free memory is still 127.2MB. There was no memory consumed. Max. memory is 16.1GB. [2025-01-09 18:29:55,845 INFO L158 Benchmark]: CACSL2BoogieTranslator took 998.54ms. Allocated memory is still 142.6MB. Free memory was 101.6MB in the beginning and 65.7MB in the end (delta: 35.9MB). Peak memory consumption was 84.1MB. Max. memory is 16.1GB. [2025-01-09 18:29:55,845 INFO L158 Benchmark]: Boogie Procedure Inliner took 77.95ms. Allocated memory is still 142.6MB. Free memory was 65.7MB in the beginning and 58.4MB in the end (delta: 7.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-01-09 18:29:55,845 INFO L158 Benchmark]: Boogie Preprocessor took 234.78ms. Allocated memory is still 142.6MB. Free memory was 58.4MB in the beginning and 81.0MB in the end (delta: -22.6MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2025-01-09 18:29:55,845 INFO L158 Benchmark]: RCFGBuilder took 5270.88ms. Allocated memory was 142.6MB in the beginning and 285.2MB in the end (delta: 142.6MB). Free memory was 81.0MB in the beginning and 196.4MB in the end (delta: -115.4MB). Peak memory consumption was 50.6MB. Max. memory is 16.1GB. [2025-01-09 18:29:55,846 INFO L158 Benchmark]: TraceAbstraction took 27624.88ms. Allocated memory was 285.2MB in the beginning and 713.0MB in the end (delta: 427.8MB). Free memory was 195.6MB in the beginning and 492.0MB in the end (delta: -296.4MB). Peak memory consumption was 226.3MB. Max. memory is 16.1GB. [2025-01-09 18:29:55,846 INFO L158 Benchmark]: Witness Printer took 181.57ms. Allocated memory is still 713.0MB. Free memory was 492.0MB in the beginning and 471.0MB in the end (delta: 21.0MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-01-09 18:29:55,847 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.30ms. Allocated memory is still 201.3MB. Free memory is still 127.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 998.54ms. Allocated memory is still 142.6MB. Free memory was 101.6MB in the beginning and 65.7MB in the end (delta: 35.9MB). Peak memory consumption was 84.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 77.95ms. Allocated memory is still 142.6MB. Free memory was 65.7MB in the beginning and 58.4MB in the end (delta: 7.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 234.78ms. Allocated memory is still 142.6MB. Free memory was 58.4MB in the beginning and 81.0MB in the end (delta: -22.6MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * RCFGBuilder took 5270.88ms. Allocated memory was 142.6MB in the beginning and 285.2MB in the end (delta: 142.6MB). Free memory was 81.0MB in the beginning and 196.4MB in the end (delta: -115.4MB). Peak memory consumption was 50.6MB. Max. memory is 16.1GB. * TraceAbstraction took 27624.88ms. Allocated memory was 285.2MB in the beginning and 713.0MB in the end (delta: 427.8MB). Free memory was 195.6MB in the beginning and 492.0MB in the end (delta: -296.4MB). Peak memory consumption was 226.3MB. Max. memory is 16.1GB. * Witness Printer took 181.57ms. Allocated memory is still 713.0MB. Free memory was 492.0MB in the beginning and 471.0MB in the end (delta: 21.0MB). Peak memory consumption was 25.2MB. 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: 25.2s, OverallIterations: 6, TraceHistogramMax: 5, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 21.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 5 mSolverCounterUnknown, 1812 SdHoareTripleChecker+Valid, 21.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1806 mSDsluCounter, 6245 SdHoareTripleChecker+Invalid, 20.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3697 mSDsCounter, 158 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 849 IncrementalHoareTripleChecker+Invalid, 1012 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 158 mSolverCounterUnsat, 2548 mSDtfsCounter, 849 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 34 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s 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: 0.4s AutomataMinimizationTime, 6 MinimizatonAttempts, 24 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.4s 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! [2025-01-09 18:29:55,878 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/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