./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 3289d67d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../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/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 5ad15ea2ee4e38087fdbbd25111673bb935102e85f8e91f44e32009dacc41114 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 21:00:30,171 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 21:00:30,239 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-16 21:00:30,245 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 21:00:30,245 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 21:00:30,278 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 21:00:30,279 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 21:00:30,279 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 21:00:30,279 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 21:00:30,280 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 21:00:30,280 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 21:00:30,281 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 21:00:30,283 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 21:00:30,286 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 21:00:30,287 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 21:00:30,287 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 21:00:30,287 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 21:00:30,287 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 21:00:30,288 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 21:00:30,288 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 21:00:30,288 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 21:00:30,288 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 21:00:30,290 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 21:00:30,290 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 21:00:30,291 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 21:00:30,291 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 21:00:30,291 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 21:00:30,291 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 21:00:30,291 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 21:00:30,291 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 21:00:30,292 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 21:00:30,292 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 21:00:30,292 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 21:00:30,292 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 21:00:30,292 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 21:00:30,292 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 21:00:30,292 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 21:00:30,293 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 21:00:30,293 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 21:00:30,293 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5ad15ea2ee4e38087fdbbd25111673bb935102e85f8e91f44e32009dacc41114 [2024-11-16 21:00:30,492 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 21:00:30,514 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 21:00:30,516 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 21:00:30,518 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 21:00:30,519 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 21:00:30,520 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/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 [2024-11-16 21:00:31,730 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 21:00:32,082 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 21:00:32,083 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/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 [2024-11-16 21:00:32,122 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aca138aab/efc0cb4770704994ac439968d9eb5ddb/FLAGd292009e1 [2024-11-16 21:00:32,283 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aca138aab/efc0cb4770704994ac439968d9eb5ddb [2024-11-16 21:00:32,285 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 21:00:32,287 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 21:00:32,288 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 21:00:32,288 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 21:00:32,292 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 21:00:32,292 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 09:00:32" (1/1) ... [2024-11-16 21:00:32,293 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@502a1d33 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:00:32, skipping insertion in model container [2024-11-16 21:00:32,293 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 09:00:32" (1/1) ... [2024-11-16 21:00:32,358 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 21:00:32,864 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/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] [2024-11-16 21:00:33,128 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 21:00:33,151 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 21:00:33,228 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("bswapl %0": "=r" (val): "0" (val)); [5489] [2024-11-16 21:00:33,237 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/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] [2024-11-16 21:00:33,285 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 21:00:33,319 INFO L204 MainTranslator]: Completed translation [2024-11-16 21:00:33,320 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:00:33 WrapperNode [2024-11-16 21:00:33,320 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 21:00:33,321 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 21:00:33,321 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 21:00:33,321 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 21:00:33,327 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:00:33" (1/1) ... [2024-11-16 21:00:33,363 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:00:33" (1/1) ... [2024-11-16 21:00:33,424 INFO L138 Inliner]: procedures = 125, calls = 382, calls flagged for inlining = 59, calls inlined = 54, statements flattened = 1185 [2024-11-16 21:00:33,427 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 21:00:33,428 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 21:00:33,428 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 21:00:33,428 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 21:00:33,436 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:00:33" (1/1) ... [2024-11-16 21:00:33,436 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:00:33" (1/1) ... [2024-11-16 21:00:33,448 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:00:33" (1/1) ... [2024-11-16 21:00:33,571 INFO L175 MemorySlicer]: Split 232 memory accesses to 10 slices as follows [121, 2, 3, 18, 8, 2, 7, 8, 19, 44]. 52 percent of accesses are in the largest equivalence class. The 67 initializations are split as follows [34, 2, 0, 15, 8, 0, 0, 8, 0, 0]. The 97 writes are split as follows [25, 0, 1, 1, 0, 1, 6, 0, 19, 44]. [2024-11-16 21:00:33,571 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:00:33" (1/1) ... [2024-11-16 21:00:33,572 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:00:33" (1/1) ... [2024-11-16 21:00:33,612 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:00:33" (1/1) ... [2024-11-16 21:00:33,614 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:00:33" (1/1) ... [2024-11-16 21:00:33,626 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:00:33" (1/1) ... [2024-11-16 21:00:33,634 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:00:33" (1/1) ... [2024-11-16 21:00:33,648 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 21:00:33,649 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 21:00:33,649 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 21:00:33,649 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 21:00:33,650 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:00:33" (1/1) ... [2024-11-16 21:00:33,660 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 21:00:33,667 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 21:00:33,678 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-16 21:00:33,679 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-16 21:00:33,709 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-11-16 21:00:33,709 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-11-16 21:00:33,709 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-11-16 21:00:33,710 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-11-16 21:00:33,710 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2024-11-16 21:00:33,710 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2024-11-16 21:00:33,710 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2024-11-16 21:00:33,710 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#7 [2024-11-16 21:00:33,710 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#8 [2024-11-16 21:00:33,710 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#9 [2024-11-16 21:00:33,710 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#0 [2024-11-16 21:00:33,710 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#1 [2024-11-16 21:00:33,710 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#2 [2024-11-16 21:00:33,710 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#3 [2024-11-16 21:00:33,710 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#4 [2024-11-16 21:00:33,710 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#5 [2024-11-16 21:00:33,710 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#6 [2024-11-16 21:00:33,710 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#7 [2024-11-16 21:00:33,710 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#8 [2024-11-16 21:00:33,711 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#9 [2024-11-16 21:00:33,711 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-11-16 21:00:33,711 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-11-16 21:00:33,711 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-11-16 21:00:33,711 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-11-16 21:00:33,711 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-11-16 21:00:33,711 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2024-11-16 21:00:33,711 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2024-11-16 21:00:33,712 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#7 [2024-11-16 21:00:33,712 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#8 [2024-11-16 21:00:33,712 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#9 [2024-11-16 21:00:33,712 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2024-11-16 21:00:33,712 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2024-11-16 21:00:33,712 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-16 21:00:33,712 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-16 21:00:33,712 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-16 21:00:33,712 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-16 21:00:33,712 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-16 21:00:33,713 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-16 21:00:33,713 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-11-16 21:00:33,713 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-11-16 21:00:33,713 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2024-11-16 21:00:33,713 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2024-11-16 21:00:33,713 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_disconnect [2024-11-16 21:00:33,713 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_disconnect [2024-11-16 21:00:33,713 INFO L130 BoogieDeclarations]: Found specification of procedure skb_push [2024-11-16 21:00:33,713 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_push [2024-11-16 21:00:33,713 INFO L130 BoogieDeclarations]: Found specification of procedure skb_clone [2024-11-16 21:00:33,713 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_clone [2024-11-16 21:00:33,713 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free [2024-11-16 21:00:33,713 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free [2024-11-16 21:00:33,713 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2024-11-16 21:00:33,713 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2024-11-16 21:00:33,713 INFO L130 BoogieDeclarations]: Found specification of procedure skb_trim [2024-11-16 21:00:33,714 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_trim [2024-11-16 21:00:33,714 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-16 21:00:33,714 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-16 21:00:33,714 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-16 21:00:33,714 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-16 21:00:33,714 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-16 21:00:33,714 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-16 21:00:33,714 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-11-16 21:00:33,714 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-11-16 21:00:33,714 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2024-11-16 21:00:33,714 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2024-11-16 21:00:33,714 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2024-11-16 21:00:33,714 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2024-11-16 21:00:33,715 INFO L130 BoogieDeclarations]: Found specification of procedure skb_pull [2024-11-16 21:00:33,715 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_pull [2024-11-16 21:00:33,715 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2024-11-16 21:00:33,715 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2024-11-16 21:00:33,715 INFO L130 BoogieDeclarations]: Found specification of procedure put_unaligned_le16 [2024-11-16 21:00:33,716 INFO L138 BoogieDeclarations]: Found implementation of procedure put_unaligned_le16 [2024-11-16 21:00:33,716 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2024-11-16 21:00:33,716 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2024-11-16 21:00:33,716 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2024-11-16 21:00:33,716 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#3 [2024-11-16 21:00:33,716 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#4 [2024-11-16 21:00:33,716 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#5 [2024-11-16 21:00:33,716 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#6 [2024-11-16 21:00:33,716 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#7 [2024-11-16 21:00:33,716 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#8 [2024-11-16 21:00:33,717 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#9 [2024-11-16 21:00:33,717 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2024-11-16 21:00:33,717 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2024-11-16 21:00:33,717 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2024-11-16 21:00:33,717 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#3 [2024-11-16 21:00:33,717 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#4 [2024-11-16 21:00:33,717 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#5 [2024-11-16 21:00:33,717 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#6 [2024-11-16 21:00:33,717 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#7 [2024-11-16 21:00:33,717 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#8 [2024-11-16 21:00:33,717 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#9 [2024-11-16 21:00:33,717 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-16 21:00:33,717 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-16 21:00:33,717 INFO L130 BoogieDeclarations]: Found specification of procedure eem_rx_fixup [2024-11-16 21:00:33,717 INFO L138 BoogieDeclarations]: Found implementation of procedure eem_rx_fixup [2024-11-16 21:00:33,717 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-16 21:00:33,717 INFO L130 BoogieDeclarations]: Found specification of procedure crc32_le [2024-11-16 21:00:33,717 INFO L138 BoogieDeclarations]: Found implementation of procedure crc32_le [2024-11-16 21:00:33,718 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2024-11-16 21:00:33,718 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2024-11-16 21:00:33,718 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 21:00:33,718 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-16 21:00:33,718 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-16 21:00:33,718 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-16 21:00:33,718 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-16 21:00:33,718 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-16 21:00:33,718 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-16 21:00:33,718 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-11-16 21:00:33,718 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2024-11-16 21:00:33,718 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2024-11-16 21:00:33,718 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#8 [2024-11-16 21:00:33,718 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#9 [2024-11-16 21:00:33,718 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-16 21:00:33,718 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-16 21:00:33,718 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-16 21:00:33,718 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-16 21:00:33,718 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-16 21:00:33,719 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-11-16 21:00:33,719 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2024-11-16 21:00:33,719 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2024-11-16 21:00:33,719 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2024-11-16 21:00:33,719 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#9 [2024-11-16 21:00:33,719 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_remove [2024-11-16 21:00:33,719 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_remove [2024-11-16 21:00:33,719 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2024-11-16 21:00:33,719 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2024-11-16 21:00:33,719 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-16 21:00:33,720 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-16 21:00:33,720 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-16 21:00:33,720 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-16 21:00:33,720 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-16 21:00:33,720 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-11-16 21:00:33,720 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-11-16 21:00:33,720 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2024-11-16 21:00:33,720 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2024-11-16 21:00:33,720 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#8 [2024-11-16 21:00:33,721 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#9 [2024-11-16 21:00:33,721 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2024-11-16 21:00:33,721 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2024-11-16 21:00:33,721 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_warn [2024-11-16 21:00:33,721 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_warn [2024-11-16 21:00:33,721 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-16 21:00:33,721 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-16 21:00:33,721 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-16 21:00:33,721 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-16 21:00:33,721 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-16 21:00:33,721 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-16 21:00:33,722 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-16 21:00:33,722 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-11-16 21:00:33,722 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-11-16 21:00:33,722 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2024-11-16 21:00:33,722 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#0 [2024-11-16 21:00:33,722 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#1 [2024-11-16 21:00:33,722 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#2 [2024-11-16 21:00:33,722 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#3 [2024-11-16 21:00:33,722 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#4 [2024-11-16 21:00:33,722 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#5 [2024-11-16 21:00:33,723 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#6 [2024-11-16 21:00:33,723 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#7 [2024-11-16 21:00:33,723 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#8 [2024-11-16 21:00:33,723 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#9 [2024-11-16 21:00:33,723 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2024-11-16 21:00:33,723 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2024-11-16 21:00:33,723 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 21:00:33,723 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 21:00:33,723 INFO L130 BoogieDeclarations]: Found specification of procedure eem_tx_fixup [2024-11-16 21:00:33,723 INFO L138 BoogieDeclarations]: Found implementation of procedure eem_tx_fixup [2024-11-16 21:00:33,996 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 21:00:33,998 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 21:00:34,014 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2024-11-16 21:00:34,022 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L6622: havoc #t~ret212.base, #t~ret212.offset; [2024-11-16 21:00:34,025 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L6613: havoc #t~ret209.base, #t~ret209.offset; [2024-11-16 21:00:34,101 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L6619: havoc #t~ret211.base, #t~ret211.offset; [2024-11-16 21:00:34,421 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L6650: havoc usb_submit_urb_#t~nondet218#1; [2024-11-16 21:00:34,421 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L5932: call ULTIMATE.dealloc(~#descriptor~0#1.base, ~#descriptor~0#1.offset);havoc ~#descriptor~0#1.base, ~#descriptor~0#1.offset; [2024-11-16 21:00:34,421 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L5512: havoc __le32_to_cpup_#t~mem4#1; [2024-11-16 21:00:34,421 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L6594: havoc __dynamic_netdev_dbg_#t~nondet204#1; [2024-11-16 21:00:34,421 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L5518: havoc __le16_to_cpup_#t~mem5#1; [2024-11-16 21:00:34,421 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L6633: havoc usb_alloc_urb_#t~ret216#1.base, usb_alloc_urb_#t~ret216#1.offset; [2024-11-16 21:00:34,424 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L6598: havoc #t~nondet205; [2024-11-16 21:00:34,456 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L6610: havoc #t~nondet208; [2024-11-16 21:00:38,780 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L6675: havoc usbnet_suspend_#t~nondet222#1; [2024-11-16 21:00:38,781 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L6602: havoc ldv_release_2_#t~nondet206#1; [2024-11-16 21:00:38,781 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L6668: havoc usbnet_resume_#t~nondet221#1; [2024-11-16 21:00:38,781 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L6660: havoc usbnet_get_endpoints_#t~nondet219#1; [2024-11-16 21:00:38,781 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L6646: havoc usb_register_driver_#t~nondet217#1; [2024-11-16 21:00:38,781 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L6127: call ULTIMATE.dealloc(main_~#ldvarg0~0#1.base, main_~#ldvarg0~0#1.offset);havoc main_~#ldvarg0~0#1.base, main_~#ldvarg0~0#1.offset;call ULTIMATE.dealloc(main_~#ldvarg2~0#1.base, main_~#ldvarg2~0#1.offset);havoc main_~#ldvarg2~0#1.base, main_~#ldvarg2~0#1.offset; [2024-11-16 21:00:38,781 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L6606: havoc ldv_reset_resume_1_#t~nondet207#1; [2024-11-16 21:00:38,781 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L6664: havoc usbnet_probe_#t~nondet220#1; [2024-11-16 21:00:38,912 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L5556: havoc skb_end_pointer_#t~mem23#1.base, skb_end_pointer_#t~mem23#1.offset;havoc skb_end_pointer_#t~mem24#1; [2024-11-16 21:00:38,912 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L5614: havoc skb_tailroom_#t~ite43#1;havoc skb_tailroom_#t~mem41#1;havoc skb_tailroom_#t~mem42#1; [2024-11-16 21:00:38,913 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L5606: havoc skb_headroom_#t~mem38#1.base, skb_headroom_#t~mem38#1.offset;havoc skb_headroom_#t~mem39#1.base, skb_headroom_#t~mem39#1.offset; [2024-11-16 21:00:38,913 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L5536: havoc atomic_read_#t~mem16#1; [2024-11-16 21:00:38,913 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L5582: havoc skb_is_nonlinear_#t~mem28#1; [2024-11-16 21:00:38,913 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L6616: havoc skb_copy_expand_#t~ret210#1.base, skb_copy_expand_#t~ret210#1.offset; [2024-11-16 21:00:39,046 INFO L? ?]: Removed 576 outVars from TransFormulas that were not future-live. [2024-11-16 21:00:39,046 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 21:00:39,076 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 21:00:39,077 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 21:00:39,077 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 09:00:39 BoogieIcfgContainer [2024-11-16 21:00:39,077 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 21:00:39,079 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 21:00:39,079 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 21:00:39,082 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 21:00:39,082 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 09:00:32" (1/3) ... [2024-11-16 21:00:39,082 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c91ca0e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 09:00:39, skipping insertion in model container [2024-11-16 21:00:39,083 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:00:33" (2/3) ... [2024-11-16 21:00:39,083 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c91ca0e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 09:00:39, skipping insertion in model container [2024-11-16 21:00:39,083 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 09:00:39" (3/3) ... [2024-11-16 21:00:39,085 INFO L112 eAbstractionObserver]: Analyzing ICFG 205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--usb--cdc_eem.ko-entry_point.cil.out.i [2024-11-16 21:00:39,097 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 21:00:39,097 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-16 21:00:39,163 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 21:00:39,170 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;@6c3c94ce, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 21:00:39,170 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-16 21:00:39,176 INFO L276 IsEmpty]: Start isEmpty. Operand has 347 states, 272 states have (on average 1.3713235294117647) internal successors, (373), 282 states have internal predecessors, (373), 51 states have call successors, (51), 23 states have call predecessors, (51), 22 states have return successors, (47), 47 states have call predecessors, (47), 47 states have call successors, (47) [2024-11-16 21:00:39,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2024-11-16 21:00:39,185 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 21:00:39,186 INFO L215 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, 1] [2024-11-16 21:00:39,186 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 21:00:39,191 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 21:00:39,191 INFO L85 PathProgramCache]: Analyzing trace with hash 2102598506, now seen corresponding path program 1 times [2024-11-16 21:00:39,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 21:00:39,200 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1082052728] [2024-11-16 21:00:39,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 21:00:39,201 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 21:00:39,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 21:00:40,007 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-16 21:00:40,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 21:00:40,016 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-16 21:00:40,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 21:00:40,033 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-16 21:00:40,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 21:00:40,054 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-16 21:00:40,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 21:00:40,062 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-16 21:00:40,062 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 21:00:40,062 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1082052728] [2024-11-16 21:00:40,063 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1082052728] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 21:00:40,063 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 21:00:40,063 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 21:00:40,064 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1564997193] [2024-11-16 21:00:40,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 21:00:40,068 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 21:00:40,071 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 21:00:40,086 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 21:00:40,086 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-16 21:00:40,088 INFO L87 Difference]: Start difference. First operand has 347 states, 272 states have (on average 1.3713235294117647) internal successors, (373), 282 states have internal predecessors, (373), 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 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-16 21:00:44,131 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-16 21:00:48,142 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-16 21:00:50,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 21:00:50,110 INFO L93 Difference]: Finished difference Result 1050 states and 1490 transitions. [2024-11-16 21:00:50,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-16 21:00:50,113 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (5), 4 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 43 [2024-11-16 21:00:50,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 21:00:50,124 INFO L225 Difference]: With dead ends: 1050 [2024-11-16 21:00:50,124 INFO L226 Difference]: Without dead ends: 692 [2024-11-16 21:00:50,129 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2024-11-16 21:00:50,131 INFO L432 NwaCegarLoop]: 168 mSDtfsCounter, 1449 mSDsluCounter, 535 mSDsCounter, 0 mSdLazyCounter, 911 mSolverCounterSat, 535 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1457 SdHoareTripleChecker+Valid, 703 SdHoareTripleChecker+Invalid, 1448 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 535 IncrementalHoareTripleChecker+Valid, 911 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.8s IncrementalHoareTripleChecker+Time [2024-11-16 21:00:50,132 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1457 Valid, 703 Invalid, 1448 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [535 Valid, 911 Invalid, 2 Unknown, 0 Unchecked, 9.8s Time] [2024-11-16 21:00:50,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 692 states. [2024-11-16 21:00:50,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 692 to 630. [2024-11-16 21:00:50,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 630 states, 503 states have (on average 1.337972166998012) internal successors, (673), 511 states have internal predecessors, (673), 86 states have call successors, (86), 41 states have call predecessors, (86), 40 states have return successors, (85), 85 states have call predecessors, (85), 85 states have call successors, (85) [2024-11-16 21:00:50,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 630 states to 630 states and 844 transitions. [2024-11-16 21:00:50,232 INFO L78 Accepts]: Start accepts. Automaton has 630 states and 844 transitions. Word has length 43 [2024-11-16 21:00:50,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 21:00:50,233 INFO L471 AbstractCegarLoop]: Abstraction has 630 states and 844 transitions. [2024-11-16 21:00:50,233 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-16 21:00:50,233 INFO L276 IsEmpty]: Start isEmpty. Operand 630 states and 844 transitions. [2024-11-16 21:00:50,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2024-11-16 21:00:50,236 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 21:00:50,236 INFO L215 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, 1] [2024-11-16 21:00:50,236 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 21:00:50,236 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 21:00:50,237 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 21:00:50,237 INFO L85 PathProgramCache]: Analyzing trace with hash -922548276, now seen corresponding path program 1 times [2024-11-16 21:00:50,238 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 21:00:50,239 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1393181225] [2024-11-16 21:00:50,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 21:00:50,240 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 21:00:50,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 21:00:50,733 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-16 21:00:50,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 21:00:50,742 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-16 21:00:50,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 21:00:50,763 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-16 21:00:50,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 21:00:50,788 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-16 21:00:50,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 21:00:50,796 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 21:00:50,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 21:00:50,801 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-16 21:00:50,802 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 21:00:50,802 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1393181225] [2024-11-16 21:00:50,802 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1393181225] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 21:00:50,802 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 21:00:50,802 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-16 21:00:50,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [508552056] [2024-11-16 21:00:50,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 21:00:50,803 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-16 21:00:50,804 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 21:00:50,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-16 21:00:50,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-16 21:00:50,804 INFO L87 Difference]: Start difference. First operand 630 states and 844 transitions. Second operand has 8 states, 8 states have (on average 4.5) internal successors, (36), 5 states have internal predecessors, (36), 3 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 21:00:54,818 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-16 21:00:57,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 21:00:57,002 INFO L93 Difference]: Finished difference Result 1358 states and 1852 transitions. [2024-11-16 21:00:57,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-16 21:00:57,004 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.5) internal successors, (36), 5 states have internal predecessors, (36), 3 states have call successors, (6), 4 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 53 [2024-11-16 21:00:57,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 21:00:57,014 INFO L225 Difference]: With dead ends: 1358 [2024-11-16 21:00:57,014 INFO L226 Difference]: Without dead ends: 1348 [2024-11-16 21:00:57,017 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=58, Invalid=182, Unknown=0, NotChecked=0, Total=240 [2024-11-16 21:00:57,018 INFO L432 NwaCegarLoop]: 156 mSDtfsCounter, 1496 mSDsluCounter, 791 mSDsCounter, 0 mSdLazyCounter, 1520 mSolverCounterSat, 534 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1509 SdHoareTripleChecker+Valid, 947 SdHoareTripleChecker+Invalid, 2055 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 534 IncrementalHoareTripleChecker+Valid, 1520 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2024-11-16 21:00:57,019 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1509 Valid, 947 Invalid, 2055 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [534 Valid, 1520 Invalid, 1 Unknown, 0 Unchecked, 6.0s Time] [2024-11-16 21:00:57,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1348 states. [2024-11-16 21:00:57,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1348 to 1222. [2024-11-16 21:00:57,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1222 states, 976 states have (on average 1.341188524590164) internal successors, (1309), 992 states have internal predecessors, (1309), 167 states have call successors, (167), 79 states have call predecessors, (167), 78 states have return successors, (174), 166 states have call predecessors, (174), 166 states have call successors, (174) [2024-11-16 21:00:57,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1222 states to 1222 states and 1650 transitions. [2024-11-16 21:00:57,085 INFO L78 Accepts]: Start accepts. Automaton has 1222 states and 1650 transitions. Word has length 53 [2024-11-16 21:00:57,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 21:00:57,086 INFO L471 AbstractCegarLoop]: Abstraction has 1222 states and 1650 transitions. [2024-11-16 21:00:57,086 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.5) internal successors, (36), 5 states have internal predecessors, (36), 3 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 21:00:57,086 INFO L276 IsEmpty]: Start isEmpty. Operand 1222 states and 1650 transitions. [2024-11-16 21:00:57,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2024-11-16 21:00:57,098 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 21:00:57,098 INFO L215 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 21:00:57,098 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-16 21:00:57,099 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 21:00:57,099 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 21:00:57,099 INFO L85 PathProgramCache]: Analyzing trace with hash 1536411169, now seen corresponding path program 1 times [2024-11-16 21:00:57,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 21:00:57,099 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [568577126] [2024-11-16 21:00:57,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 21:00:57,099 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 21:00:57,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 21:00:57,446 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-16 21:00:57,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 21:00:57,452 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-16 21:00:57,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 21:00:57,469 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-16 21:00:57,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 21:00:57,483 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-16 21:00:57,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 21:00:57,518 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 21:00:57,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 21:00:57,572 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-16 21:00:57,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 21:00:57,580 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 21:00:57,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 21:00:57,584 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-16 21:00:57,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 21:00:57,589 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 21:00:57,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 21:00:57,596 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-16 21:00:57,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 21:00:57,602 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-16 21:00:57,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 21:00:57,607 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 21:00:57,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 21:00:57,611 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 21:00:57,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 21:00:57,631 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-16 21:00:57,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 21:00:57,638 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-16 21:00:57,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 21:00:57,657 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-16 21:00:57,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 21:00:57,663 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 21:00:57,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 21:00:57,666 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-16 21:00:57,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 21:00:57,669 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-16 21:00:57,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 21:00:57,673 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 21:00:57,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 21:00:57,680 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2024-11-16 21:00:57,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 21:00:57,689 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2024-11-16 21:00:57,689 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 21:00:57,690 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [568577126] [2024-11-16 21:00:57,690 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [568577126] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 21:00:57,690 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 21:00:57,690 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-16 21:00:57,690 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [702468865] [2024-11-16 21:00:57,690 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 21:00:57,690 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-16 21:00:57,690 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 21:00:57,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-16 21:00:57,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2024-11-16 21:00:57,691 INFO L87 Difference]: Start difference. First operand 1222 states and 1650 transitions. Second operand has 10 states, 10 states have (on average 10.8) internal successors, (108), 3 states have internal predecessors, (108), 2 states have call successors, (21), 9 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2024-11-16 21:01:01,706 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-16 21:01:05,720 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-16 21:01:09,740 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-16 21:01:13,745 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-16 21:01:17,757 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-16 21:01:20,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 21:01:20,357 INFO L93 Difference]: Finished difference Result 3389 states and 4749 transitions. [2024-11-16 21:01:20,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-16 21:01:20,358 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.8) internal successors, (108), 3 states have internal predecessors, (108), 2 states have call successors, (21), 9 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 172 [2024-11-16 21:01:20,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 21:01:20,367 INFO L225 Difference]: With dead ends: 3389 [2024-11-16 21:01:20,367 INFO L226 Difference]: Without dead ends: 2187 [2024-11-16 21:01:20,370 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=115, Invalid=265, Unknown=0, NotChecked=0, Total=380 [2024-11-16 21:01:20,370 INFO L432 NwaCegarLoop]: 169 mSDtfsCounter, 1635 mSDsluCounter, 928 mSDsCounter, 0 mSdLazyCounter, 1616 mSolverCounterSat, 631 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1647 SdHoareTripleChecker+Valid, 1097 SdHoareTripleChecker+Invalid, 2252 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 631 IncrementalHoareTripleChecker+Valid, 1616 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.2s IncrementalHoareTripleChecker+Time [2024-11-16 21:01:20,371 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1647 Valid, 1097 Invalid, 2252 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [631 Valid, 1616 Invalid, 5 Unknown, 0 Unchecked, 22.2s Time] [2024-11-16 21:01:20,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2187 states. [2024-11-16 21:01:20,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2187 to 1649. [2024-11-16 21:01:20,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1649 states, 1336 states have (on average 1.3637724550898203) internal successors, (1822), 1362 states have internal predecessors, (1822), 218 states have call successors, (218), 89 states have call predecessors, (218), 94 states have return successors, (235), 219 states have call predecessors, (235), 217 states have call successors, (235) [2024-11-16 21:01:20,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1649 states to 1649 states and 2275 transitions. [2024-11-16 21:01:20,445 INFO L78 Accepts]: Start accepts. Automaton has 1649 states and 2275 transitions. Word has length 172 [2024-11-16 21:01:20,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 21:01:20,445 INFO L471 AbstractCegarLoop]: Abstraction has 1649 states and 2275 transitions. [2024-11-16 21:01:20,445 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.8) internal successors, (108), 3 states have internal predecessors, (108), 2 states have call successors, (21), 9 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2024-11-16 21:01:20,445 INFO L276 IsEmpty]: Start isEmpty. Operand 1649 states and 2275 transitions. [2024-11-16 21:01:20,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2024-11-16 21:01:20,449 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 21:01:20,449 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 3, 3, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 21:01:20,449 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-16 21:01:20,449 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 21:01:20,449 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 21:01:20,450 INFO L85 PathProgramCache]: Analyzing trace with hash -396122143, now seen corresponding path program 1 times [2024-11-16 21:01:20,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 21:01:20,450 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [890636702] [2024-11-16 21:01:20,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 21:01:20,450 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 21:01:20,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 21:01:20,819 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-16 21:01:20,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 21:01:20,824 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-16 21:01:20,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 21:01:20,836 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-16 21:01:20,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 21:01:20,851 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-16 21:01:20,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 21:01:20,856 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 21:01:20,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 21:01:20,862 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-11-16 21:01:20,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 21:01:20,869 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-16 21:01:20,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 21:01:20,904 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-11-16 21:01:20,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 21:01:20,952 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-16 21:01:20,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 21:01:20,958 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 21:01:20,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 21:01:20,961 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-16 21:01:20,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 21:01:20,966 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 21:01:20,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 21:01:20,969 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-16 21:01:20,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 21:01:20,973 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-16 21:01:20,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 21:01:20,979 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 21:01:20,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 21:01:20,984 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 21:01:20,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 21:01:21,002 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-16 21:01:21,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 21:01:21,009 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-16 21:01:21,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 21:01:21,028 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-16 21:01:21,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 21:01:21,033 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 21:01:21,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 21:01:21,037 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-16 21:01:21,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 21:01:21,042 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-16 21:01:21,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 21:01:21,046 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 21:01:21,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 21:01:21,050 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2024-11-16 21:01:21,051 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 21:01:21,051 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [890636702] [2024-11-16 21:01:21,051 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [890636702] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 21:01:21,051 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 21:01:21,051 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-16 21:01:21,052 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [268869579] [2024-11-16 21:01:21,052 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 21:01:21,052 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-16 21:01:21,053 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 21:01:21,054 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-16 21:01:21,054 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2024-11-16 21:01:21,054 INFO L87 Difference]: Start difference. First operand 1649 states and 2275 transitions. Second operand has 10 states, 10 states have (on average 12.2) internal successors, (122), 3 states have internal predecessors, (122), 3 states have call successors, (23), 9 states have call predecessors, (23), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2024-11-16 21:01:25,085 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 [] [2024-11-16 21:01:29,096 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-16 21:01:33,099 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-16 21:01:37,119 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-16 21:01:41,136 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-16 21:01:45,139 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-16 21:01:48,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 21:01:48,620 INFO L93 Difference]: Finished difference Result 5609 states and 7919 transitions. [2024-11-16 21:01:48,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-16 21:01:48,621 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 12.2) internal successors, (122), 3 states have internal predecessors, (122), 3 states have call successors, (23), 9 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 196 [2024-11-16 21:01:48,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 21:01:48,635 INFO L225 Difference]: With dead ends: 5609 [2024-11-16 21:01:48,636 INFO L226 Difference]: Without dead ends: 3991 [2024-11-16 21:01:48,643 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 108 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=161, Invalid=391, Unknown=0, NotChecked=0, Total=552 [2024-11-16 21:01:48,644 INFO L432 NwaCegarLoop]: 227 mSDtfsCounter, 3438 mSDsluCounter, 1247 mSDsCounter, 0 mSdLazyCounter, 1583 mSolverCounterSat, 1338 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 26.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3447 SdHoareTripleChecker+Valid, 1474 SdHoareTripleChecker+Invalid, 2927 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1338 IncrementalHoareTripleChecker+Valid, 1583 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 26.9s IncrementalHoareTripleChecker+Time [2024-11-16 21:01:48,644 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3447 Valid, 1474 Invalid, 2927 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1338 Valid, 1583 Invalid, 6 Unknown, 0 Unchecked, 26.9s Time] [2024-11-16 21:01:48,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3991 states. [2024-11-16 21:01:48,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3991 to 2941. [2024-11-16 21:01:48,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2941 states, 2370 states have (on average 1.3527426160337552) internal successors, (3206), 2422 states have internal predecessors, (3206), 396 states have call successors, (396), 163 states have call predecessors, (396), 174 states have return successors, (423), 399 states have call predecessors, (423), 395 states have call successors, (423) [2024-11-16 21:01:48,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2941 states to 2941 states and 4025 transitions. [2024-11-16 21:01:48,803 INFO L78 Accepts]: Start accepts. Automaton has 2941 states and 4025 transitions. Word has length 196 [2024-11-16 21:01:48,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 21:01:48,804 INFO L471 AbstractCegarLoop]: Abstraction has 2941 states and 4025 transitions. [2024-11-16 21:01:48,804 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 12.2) internal successors, (122), 3 states have internal predecessors, (122), 3 states have call successors, (23), 9 states have call predecessors, (23), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2024-11-16 21:01:48,804 INFO L276 IsEmpty]: Start isEmpty. Operand 2941 states and 4025 transitions. [2024-11-16 21:01:48,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2024-11-16 21:01:48,809 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 21:01:48,809 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 3, 3, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 21:01:48,809 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-16 21:01:48,810 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 21:01:48,810 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 21:01:48,810 INFO L85 PathProgramCache]: Analyzing trace with hash -474904799, now seen corresponding path program 1 times [2024-11-16 21:01:48,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 21:01:48,810 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [996590127] [2024-11-16 21:01:48,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 21:01:48,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 21:01:49,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 21:01:49,105 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-16 21:01:49,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 21:01:49,109 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-16 21:01:49,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 21:01:49,119 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-16 21:01:49,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 21:01:49,131 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-16 21:01:49,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 21:01:49,135 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 21:01:49,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 21:01:49,138 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-11-16 21:01:49,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 21:01:49,142 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-16 21:01:49,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 21:01:49,175 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-16 21:01:49,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 21:01:49,226 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-16 21:01:49,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 21:01:49,231 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 21:01:49,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 21:01:49,233 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-16 21:01:49,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 21:01:49,237 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 21:01:49,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 21:01:49,240 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-16 21:01:49,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 21:01:49,243 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-16 21:01:49,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 21:01:49,245 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 21:01:49,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 21:01:49,248 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 21:01:49,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 21:01:49,263 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-16 21:01:49,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 21:01:49,268 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-16 21:01:49,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 21:01:49,289 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-16 21:01:49,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 21:01:49,296 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 21:01:49,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 21:01:49,312 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-16 21:01:49,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 21:01:49,316 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-16 21:01:49,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 21:01:49,319 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 21:01:49,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 21:01:49,323 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2024-11-16 21:01:49,323 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 21:01:49,324 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [996590127] [2024-11-16 21:01:49,324 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [996590127] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 21:01:49,324 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 21:01:49,324 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-16 21:01:49,324 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [879801836] [2024-11-16 21:01:49,324 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 21:01:49,325 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-16 21:01:49,325 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 21:01:49,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-16 21:01:49,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2024-11-16 21:01:49,327 INFO L87 Difference]: Start difference. First operand 2941 states and 4025 transitions. Second operand has 10 states, 10 states have (on average 12.0) internal successors, (120), 3 states have internal predecessors, (120), 2 states have call successors, (23), 9 states have call predecessors, (23), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2024-11-16 21:01:53,338 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-16 21:01:57,351 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-16 21:02:01,364 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-16 21:02:05,376 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-16 21:02:09,381 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []