./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_array_list_erase_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 798a7b37 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/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_1.6.800.v20240513-1750.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/aws-c-common/aws_array_list_erase_harness.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 d31a3c72327f82612c1df0b26c3fcc0fecf0a10b67b9a605f782e4835b0f6e1b --- Real Ultimate output --- This is Ultimate 0.3.0-?-798a7b3-m [2025-03-04 02:33:07,365 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-04 02:33:07,446 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2025-03-04 02:33:07,451 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-04 02:33:07,451 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-04 02:33:07,477 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-04 02:33:07,477 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-04 02:33:07,478 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-04 02:33:07,478 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-04 02:33:07,479 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-04 02:33:07,479 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-04 02:33:07,479 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-04 02:33:07,480 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-04 02:33:07,480 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-04 02:33:07,480 INFO L153 SettingsManager]: * Use SBE=true [2025-03-04 02:33:07,481 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-04 02:33:07,481 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-04 02:33:07,481 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-04 02:33:07,481 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-04 02:33:07,481 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-04 02:33:07,481 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-04 02:33:07,481 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-04 02:33:07,481 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-04 02:33:07,481 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-04 02:33:07,481 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-04 02:33:07,481 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-04 02:33:07,482 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-04 02:33:07,482 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-04 02:33:07,482 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-04 02:33:07,482 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 02:33:07,482 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-04 02:33:07,483 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-04 02:33:07,483 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-04 02:33:07,483 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-04 02:33:07,483 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-04 02:33:07,483 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-04 02:33:07,483 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-04 02:33:07,483 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-04 02:33:07,483 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-04 02:33:07,483 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-04 02:33:07,484 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/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 -> d31a3c72327f82612c1df0b26c3fcc0fecf0a10b67b9a605f782e4835b0f6e1b [2025-03-04 02:33:07,759 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-04 02:33:07,766 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-04 02:33:07,769 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-04 02:33:07,769 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-04 02:33:07,770 INFO L274 PluginConnector]: CDTParser initialized [2025-03-04 02:33:07,772 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_array_list_erase_harness.i [2025-03-04 02:33:08,947 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e93c56247/c0ac597abdb84d6a82bca5f81ff3d17b/FLAG6828d5790 [2025-03-04 02:33:09,437 INFO L384 CDTParser]: Found 1 translation units. [2025-03-04 02:33:09,438 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_erase_harness.i [2025-03-04 02:33:09,478 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e93c56247/c0ac597abdb84d6a82bca5f81ff3d17b/FLAG6828d5790 [2025-03-04 02:33:09,500 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e93c56247/c0ac597abdb84d6a82bca5f81ff3d17b [2025-03-04 02:33:09,502 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-04 02:33:09,503 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-04 02:33:09,505 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-04 02:33:09,505 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-04 02:33:09,509 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-04 02:33:09,510 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 02:33:09" (1/1) ... [2025-03-04 02:33:09,511 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@30f0f06 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:33:09, skipping insertion in model container [2025-03-04 02:33:09,512 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 02:33:09" (1/1) ... [2025-03-04 02:33:09,575 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-04 02:33:09,765 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/aws-c-common/aws_array_list_erase_harness.i[4494,4507] [2025-03-04 02:33:09,772 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/aws-c-common/aws_array_list_erase_harness.i[4554,4567] [2025-03-04 02:33:10,258 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:33:10,259 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:33:10,259 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:33:10,259 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:33:10,260 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:33:10,268 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:33:10,269 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:33:10,272 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:33:10,273 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:33:10,274 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:33:10,277 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:33:10,277 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:33:10,278 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:33:10,607 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:33:10,608 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:33:10,616 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:33:10,617 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:33:10,629 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:33:10,629 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:33:10,635 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:33:10,639 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:33:10,680 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:33:10,680 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:33:10,685 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 02:33:10,711 INFO L200 MainTranslator]: Completed pre-run [2025-03-04 02:33:10,721 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/aws-c-common/aws_array_list_erase_harness.i[4494,4507] [2025-03-04 02:33:10,721 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/aws-c-common/aws_array_list_erase_harness.i[4554,4567] [2025-03-04 02:33:10,766 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:33:10,766 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:33:10,766 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:33:10,766 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:33:10,767 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:33:10,776 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:33:10,776 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:33:10,777 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:33:10,777 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:33:10,778 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:33:10,778 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:33:10,778 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:33:10,778 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:33:10,855 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:33:10,858 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:33:10,860 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:33:10,861 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:33:10,862 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:33:10,862 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:33:10,863 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:33:10,866 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:33:10,871 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7825-7836] [2025-03-04 02:33:10,887 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:33:10,890 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:33:10,891 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 02:33:11,041 INFO L204 MainTranslator]: Completed translation [2025-03-04 02:33:11,042 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:33:11 WrapperNode [2025-03-04 02:33:11,042 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-04 02:33:11,044 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-04 02:33:11,044 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-04 02:33:11,044 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-04 02:33:11,048 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:33:11" (1/1) ... [2025-03-04 02:33:11,098 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:33:11" (1/1) ... [2025-03-04 02:33:11,162 INFO L138 Inliner]: procedures = 678, calls = 1677, calls flagged for inlining = 52, calls inlined = 11, statements flattened = 734 [2025-03-04 02:33:11,162 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-04 02:33:11,163 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-04 02:33:11,163 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-04 02:33:11,163 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-04 02:33:11,169 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:33:11" (1/1) ... [2025-03-04 02:33:11,170 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:33:11" (1/1) ... [2025-03-04 02:33:11,175 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:33:11" (1/1) ... [2025-03-04 02:33:11,238 INFO L175 MemorySlicer]: Split 331 memory accesses to 6 slices as follows [238, 2, 6, 9, 3, 73]. 72 percent of accesses are in the largest equivalence class. The 24 initializations are split as follows [6, 2, 0, 5, 1, 10]. The 243 writes are split as follows [232, 0, 2, 2, 1, 6]. [2025-03-04 02:33:11,238 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:33:11" (1/1) ... [2025-03-04 02:33:11,238 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:33:11" (1/1) ... [2025-03-04 02:33:11,269 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:33:11" (1/1) ... [2025-03-04 02:33:11,271 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:33:11" (1/1) ... [2025-03-04 02:33:11,276 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:33:11" (1/1) ... [2025-03-04 02:33:11,280 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:33:11" (1/1) ... [2025-03-04 02:33:11,292 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-04 02:33:11,293 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-04 02:33:11,293 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-04 02:33:11,293 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-04 02:33:11,293 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:33:11" (1/1) ... [2025-03-04 02:33:11,297 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 02:33:11,307 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 02:33:11,320 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) [2025-03-04 02:33:11,326 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 [2025-03-04 02:33:11,342 INFO L130 BoogieDeclarations]: Found specification of procedure memmove_impl [2025-03-04 02:33:11,343 INFO L138 BoogieDeclarations]: Found implementation of procedure memmove_impl [2025-03-04 02:33:11,343 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-03-04 02:33:11,343 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2025-03-04 02:33:11,343 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2025-03-04 02:33:11,343 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2025-03-04 02:33:11,343 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2025-03-04 02:33:11,343 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2025-03-04 02:33:11,343 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2025-03-04 02:33:11,343 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2025-03-04 02:33:11,343 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2025-03-04 02:33:11,343 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2025-03-04 02:33:11,343 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2025-03-04 02:33:11,343 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2025-03-04 02:33:11,343 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2025-03-04 02:33:11,343 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-03-04 02:33:11,343 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-03-04 02:33:11,343 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-03-04 02:33:11,343 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-03-04 02:33:11,343 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2025-03-04 02:33:11,343 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2025-03-04 02:33:11,343 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2025-03-04 02:33:11,343 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2025-03-04 02:33:11,343 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-03-04 02:33:11,343 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-03-04 02:33:11,343 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-03-04 02:33:11,344 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-04 02:33:11,344 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint8_t [2025-03-04 02:33:11,344 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint8_t [2025-03-04 02:33:11,344 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-03-04 02:33:11,344 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-03-04 02:33:11,344 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-03-04 02:33:11,344 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2025-03-04 02:33:11,344 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2025-03-04 02:33:11,344 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2025-03-04 02:33:11,344 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-04 02:33:11,344 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-04 02:33:11,344 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2025-03-04 02:33:11,344 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2025-03-04 02:33:11,344 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2025-03-04 02:33:11,344 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2025-03-04 02:33:11,344 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_size_t [2025-03-04 02:33:11,344 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_size_t [2025-03-04 02:33:11,344 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2025-03-04 02:33:11,344 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2025-03-04 02:33:11,344 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2025-03-04 02:33:11,344 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2025-03-04 02:33:11,344 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2025-03-04 02:33:11,344 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2025-03-04 02:33:11,344 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2025-03-04 02:33:11,344 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2025-03-04 02:33:11,344 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_length [2025-03-04 02:33:11,344 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_length [2025-03-04 02:33:11,344 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-03-04 02:33:11,344 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-03-04 02:33:11,344 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_pop_back [2025-03-04 02:33:11,344 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_pop_back [2025-03-04 02:33:11,344 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-03-04 02:33:11,344 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-03-04 02:33:11,344 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-03-04 02:33:11,344 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-03-04 02:33:11,344 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2025-03-04 02:33:11,344 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2025-03-04 02:33:11,345 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2025-03-04 02:33:11,345 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2025-03-04 02:33:11,345 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2025-03-04 02:33:11,345 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2025-03-04 02:33:11,345 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2025-03-04 02:33:11,345 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2025-03-04 02:33:11,345 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2025-03-04 02:33:11,345 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2025-03-04 02:33:11,345 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2025-03-04 02:33:11,345 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2025-03-04 02:33:11,345 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2025-03-04 02:33:11,345 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-03-04 02:33:11,347 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-03-04 02:33:11,347 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-03-04 02:33:11,347 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-03-04 02:33:11,347 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2025-03-04 02:33:11,347 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2025-03-04 02:33:11,347 INFO L130 BoogieDeclarations]: Found specification of procedure my_memmove [2025-03-04 02:33:11,347 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memmove [2025-03-04 02:33:11,347 INFO L130 BoogieDeclarations]: Found specification of procedure memset_impl [2025-03-04 02:33:11,347 INFO L138 BoogieDeclarations]: Found implementation of procedure memset_impl [2025-03-04 02:33:11,347 INFO L130 BoogieDeclarations]: Found specification of procedure my_memset [2025-03-04 02:33:11,347 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memset [2025-03-04 02:33:11,347 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2025-03-04 02:33:11,347 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2025-03-04 02:33:11,347 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-04 02:33:11,347 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-03-04 02:33:11,347 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-03-04 02:33:11,347 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-03-04 02:33:11,347 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-03-04 02:33:11,347 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2025-03-04 02:33:11,608 INFO L256 CfgBuilder]: Building ICFG [2025-03-04 02:33:11,611 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-04 02:33:11,642 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L2782: havoc #t~malloc77.base, #t~malloc77.offset; [2025-03-04 02:33:11,648 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L267: havoc #t~nondet10; [2025-03-04 02:33:11,668 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L263: havoc #t~nondet6; [2025-03-04 02:33:11,684 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L2588: havoc #t~ret57#1; [2025-03-04 02:33:11,691 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L7446: havoc #t~ret688.base, #t~ret688.offset; [2025-03-04 02:33:11,783 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L3268: call ULTIMATE.dealloc(~#required_size~0.base, ~#required_size~0.offset);havoc ~#required_size~0.base, ~#required_size~0.offset; [2025-03-04 02:33:11,787 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L261: havoc #t~nondet4; [2025-03-04 02:33:11,796 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L7393: havoc #t~ret682.base, #t~ret682.offset; [2025-03-04 02:33:18,402 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L3355: havoc aws_array_list_pop_front_#t~ret182#1; [2025-03-04 02:33:18,402 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L3387: havoc aws_array_list_erase_#t~ret196#1; [2025-03-04 02:33:18,651 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L3445: havoc #t~ret230; [2025-03-04 02:33:18,651 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L3432: havoc ~last_item_offset~1; [2025-03-04 02:33:18,738 INFO L? ?]: Removed 142 outVars from TransFormulas that were not future-live. [2025-03-04 02:33:18,738 INFO L307 CfgBuilder]: Performing block encoding [2025-03-04 02:33:18,754 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-04 02:33:18,754 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-04 02:33:18,755 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 02:33:18 BoogieIcfgContainer [2025-03-04 02:33:18,755 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-04 02:33:18,757 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-04 02:33:18,757 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-04 02:33:18,761 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-04 02:33:18,762 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.03 02:33:09" (1/3) ... [2025-03-04 02:33:18,762 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d8783e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 02:33:18, skipping insertion in model container [2025-03-04 02:33:18,762 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:33:11" (2/3) ... [2025-03-04 02:33:18,763 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d8783e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 02:33:18, skipping insertion in model container [2025-03-04 02:33:18,763 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 02:33:18" (3/3) ... [2025-03-04 02:33:18,764 INFO L128 eAbstractionObserver]: Analyzing ICFG aws_array_list_erase_harness.i [2025-03-04 02:33:18,778 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-04 02:33:18,780 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG aws_array_list_erase_harness.i that has 21 procedures, 254 locations, 1 initial locations, 0 loop locations, and 1 error locations. [2025-03-04 02:33:18,848 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-04 02:33:18,857 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;@5782bcb3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-04 02:33:18,858 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-03-04 02:33:18,864 INFO L276 IsEmpty]: Start isEmpty. Operand has 254 states, 144 states have (on average 1.1875) internal successors, (171), 145 states have internal predecessors, (171), 88 states have call successors, (88), 20 states have call predecessors, (88), 20 states have return successors, (88), 88 states have call predecessors, (88), 88 states have call successors, (88) [2025-03-04 02:33:18,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2025-03-04 02:33:18,874 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 02:33:18,874 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 02:33:18,875 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-04 02:33:18,879 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 02:33:18,880 INFO L85 PathProgramCache]: Analyzing trace with hash -453061669, now seen corresponding path program 1 times [2025-03-04 02:33:18,886 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 02:33:18,887 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [372210704] [2025-03-04 02:33:18,887 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 02:33:18,887 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 02:33:24,100 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 87 statements into 1 equivalence classes. [2025-03-04 02:33:24,426 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 87 of 87 statements. [2025-03-04 02:33:24,427 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 02:33:24,427 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 02:33:24,885 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2025-03-04 02:33:24,887 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 02:33:24,887 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [372210704] [2025-03-04 02:33:24,888 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [372210704] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 02:33:24,888 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2060462602] [2025-03-04 02:33:24,888 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 02:33:24,889 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 02:33:24,889 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 02:33:24,891 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 02:33:24,893 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-03-04 02:33:29,428 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 87 statements into 1 equivalence classes. [2025-03-04 02:33:29,909 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 87 of 87 statements. [2025-03-04 02:33:29,910 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 02:33:29,910 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 02:33:29,933 INFO L256 TraceCheckSpWp]: Trace formula consists of 4132 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-03-04 02:33:29,940 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 02:33:29,952 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2025-03-04 02:33:29,952 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 02:33:29,952 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2060462602] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 02:33:29,953 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-04 02:33:29,953 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2025-03-04 02:33:29,958 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1194517482] [2025-03-04 02:33:29,958 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 02:33:29,961 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-03-04 02:33:29,961 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 02:33:29,978 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-03-04 02:33:29,978 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-04 02:33:29,981 INFO L87 Difference]: Start difference. First operand has 254 states, 144 states have (on average 1.1875) internal successors, (171), 145 states have internal predecessors, (171), 88 states have call successors, (88), 20 states have call predecessors, (88), 20 states have return successors, (88), 88 states have call predecessors, (88), 88 states have call successors, (88) Second operand has 2 states, 2 states have (on average 17.5) internal successors, (35), 2 states have internal predecessors, (35), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2025-03-04 02:33:30,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 02:33:30,023 INFO L93 Difference]: Finished difference Result 499 states and 739 transitions. [2025-03-04 02:33:30,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-04 02:33:30,025 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 17.5) internal successors, (35), 2 states have internal predecessors, (35), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 87 [2025-03-04 02:33:30,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 02:33:30,033 INFO L225 Difference]: With dead ends: 499 [2025-03-04 02:33:30,033 INFO L226 Difference]: Without dead ends: 249 [2025-03-04 02:33:30,041 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-04 02:33:30,043 INFO L435 NwaCegarLoop]: 345 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 345 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-04 02:33:30,043 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 345 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-04 02:33:30,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 249 states. [2025-03-04 02:33:30,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 249 to 249. [2025-03-04 02:33:30,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 249 states, 140 states have (on average 1.1785714285714286) internal successors, (165), 141 states have internal predecessors, (165), 88 states have call successors, (88), 20 states have call predecessors, (88), 20 states have return successors, (87), 87 states have call predecessors, (87), 87 states have call successors, (87) [2025-03-04 02:33:30,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 340 transitions. [2025-03-04 02:33:30,080 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 340 transitions. Word has length 87 [2025-03-04 02:33:30,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 02:33:30,081 INFO L471 AbstractCegarLoop]: Abstraction has 249 states and 340 transitions. [2025-03-04 02:33:30,081 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 17.5) internal successors, (35), 2 states have internal predecessors, (35), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2025-03-04 02:33:30,081 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 340 transitions. [2025-03-04 02:33:30,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2025-03-04 02:33:30,085 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 02:33:30,085 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 02:33:30,099 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-03-04 02:33:30,286 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2025-03-04 02:33:30,286 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-04 02:33:30,287 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 02:33:30,287 INFO L85 PathProgramCache]: Analyzing trace with hash -1616597031, now seen corresponding path program 1 times [2025-03-04 02:33:30,287 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 02:33:30,287 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [301965349] [2025-03-04 02:33:30,287 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 02:33:30,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 02:33:34,437 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 87 statements into 1 equivalence classes. [2025-03-04 02:33:34,640 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 87 of 87 statements. [2025-03-04 02:33:34,641 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 02:33:34,641 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 02:33:37,364 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 11 proven. 10 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2025-03-04 02:33:37,365 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 02:33:37,365 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [301965349] [2025-03-04 02:33:37,365 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [301965349] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 02:33:37,365 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1662657394] [2025-03-04 02:33:37,365 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 02:33:37,365 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 02:33:37,365 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 02:33:37,371 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 02:33:37,384 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-03-04 02:33:42,142 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 87 statements into 1 equivalence classes. [2025-03-04 02:33:42,589 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 87 of 87 statements. [2025-03-04 02:33:42,589 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 02:33:42,589 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 02:33:42,609 INFO L256 TraceCheckSpWp]: Trace formula consists of 4132 conjuncts, 57 conjuncts are in the unsatisfiable core [2025-03-04 02:33:42,616 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 02:33:45,694 WARN L873 $PredicateComparison]: unable to prove that (exists ((v_ensure_array_list_has_allocated_data_member_~list.offset_8 Int)) (and (= |c_#memory_$Pointer$#5.base| (store |c_old(#memory_$Pointer$#5.base)| |c_ensure_array_list_has_allocated_data_member_#in~list.base| (store (select |c_old(#memory_$Pointer$#5.base)| |c_ensure_array_list_has_allocated_data_member_#in~list.base|) v_ensure_array_list_has_allocated_data_member_~list.offset_8 (select (select |c_#memory_$Pointer$#5.base| |c_ensure_array_list_has_allocated_data_member_#in~list.base|) v_ensure_array_list_has_allocated_data_member_~list.offset_8)))) (<= v_ensure_array_list_has_allocated_data_member_~list.offset_8 |c_ensure_array_list_has_allocated_data_member_#in~list.offset|) (= |c_#memory_$Pointer$#5.offset| (store |c_old(#memory_$Pointer$#5.offset)| |c_ensure_array_list_has_allocated_data_member_#in~list.base| (store (select |c_old(#memory_$Pointer$#5.offset)| |c_ensure_array_list_has_allocated_data_member_#in~list.base|) v_ensure_array_list_has_allocated_data_member_~list.offset_8 (select (select |c_#memory_$Pointer$#5.offset| |c_ensure_array_list_has_allocated_data_member_#in~list.base|) v_ensure_array_list_has_allocated_data_member_~list.offset_8)))))) is different from true [2025-03-04 02:33:45,817 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-04 02:33:45,823 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2025-03-04 02:33:45,887 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-04 02:33:45,888 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2025-03-04 02:33:50,297 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 47 proven. 16 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2025-03-04 02:33:50,297 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 02:33:57,672 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1662657394] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 02:33:57,672 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-03-04 02:33:57,672 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 13] total 16 [2025-03-04 02:33:57,672 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [568841608] [2025-03-04 02:33:57,672 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-03-04 02:33:57,673 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2025-03-04 02:33:57,673 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 02:33:57,674 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2025-03-04 02:33:57,675 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=536, Unknown=1, NotChecked=46, Total=650 [2025-03-04 02:33:57,676 INFO L87 Difference]: Start difference. First operand 249 states and 340 transitions. Second operand has 16 states, 14 states have (on average 5.071428571428571) internal successors, (71), 13 states have internal predecessors, (71), 7 states have call successors, (31), 5 states have call predecessors, (31), 7 states have return successors, (28), 6 states have call predecessors, (28), 7 states have call successors, (28)