./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 48c9605d Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/aws-c-common/aws_array_list_erase_harness.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash d31a3c72327f82612c1df0b26c3fcc0fecf0a10b67b9a605f782e4835b0f6e1b --- Real Ultimate output --- This is Ultimate 0.3.0-?-48c9605-m [2025-02-08 01:26:36,506 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-08 01:26:36,570 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2025-02-08 01:26:36,576 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-08 01:26:36,576 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-08 01:26:36,601 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-08 01:26:36,602 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-08 01:26:36,602 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-08 01:26:36,603 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-08 01:26:36,603 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-08 01:26:36,603 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-08 01:26:36,604 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-08 01:26:36,604 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-08 01:26:36,604 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-08 01:26:36,604 INFO L153 SettingsManager]: * Use SBE=true [2025-02-08 01:26:36,604 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-08 01:26:36,604 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-08 01:26:36,604 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-08 01:26:36,604 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-08 01:26:36,605 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-08 01:26:36,605 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-08 01:26:36,605 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-08 01:26:36,605 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-08 01:26:36,605 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-08 01:26:36,605 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-08 01:26:36,605 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-08 01:26:36,605 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-08 01:26:36,605 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-08 01:26:36,605 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-08 01:26:36,606 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 01:26:36,606 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-08 01:26:36,606 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-08 01:26:36,606 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-08 01:26:36,606 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-08 01:26:36,606 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-08 01:26:36,606 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-08 01:26:36,607 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-08 01:26:36,607 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-08 01:26:36,607 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-08 01:26:36,607 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-08 01:26:36,607 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d31a3c72327f82612c1df0b26c3fcc0fecf0a10b67b9a605f782e4835b0f6e1b [2025-02-08 01:26:36,847 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-08 01:26:36,855 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-08 01:26:36,857 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-08 01:26:36,858 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-08 01:26:36,858 INFO L274 PluginConnector]: CDTParser initialized [2025-02-08 01:26:36,860 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_array_list_erase_harness.i [2025-02-08 01:26:38,100 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/e9b0776b0/c2b2d265dcee4780ac6949c905abf443/FLAGd7f5110f6 [2025-02-08 01:26:38,476 INFO L384 CDTParser]: Found 1 translation units. [2025-02-08 01:26:38,477 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_erase_harness.i [2025-02-08 01:26:38,510 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/e9b0776b0/c2b2d265dcee4780ac6949c905abf443/FLAGd7f5110f6 [2025-02-08 01:26:38,662 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/e9b0776b0/c2b2d265dcee4780ac6949c905abf443 [2025-02-08 01:26:38,664 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-08 01:26:38,665 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-08 01:26:38,667 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-08 01:26:38,668 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-08 01:26:38,671 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-08 01:26:38,673 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 01:26:38" (1/1) ... [2025-02-08 01:26:38,675 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5d31ac5f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:26:38, skipping insertion in model container [2025-02-08 01:26:38,675 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 01:26:38" (1/1) ... [2025-02-08 01:26:38,744 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-08 01:26:38,958 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_erase_harness.i[4494,4507] [2025-02-08 01:26:38,964 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_erase_harness.i[4554,4567] [2025-02-08 01:26:39,493 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:26:39,493 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:26:39,493 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:26:39,494 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:26:39,495 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:26:39,501 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:26:39,502 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:26:39,503 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:26:39,503 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:26:39,504 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:26:39,504 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:26:39,505 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:26:39,505 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:26:39,817 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:26:39,818 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:26:39,824 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:26:39,825 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:26:39,827 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:26:39,828 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:26:39,830 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:26:39,834 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:26:39,868 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:26:39,868 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:26:39,871 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 01:26:39,893 INFO L200 MainTranslator]: Completed pre-run [2025-02-08 01:26:39,903 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_erase_harness.i[4494,4507] [2025-02-08 01:26:39,903 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_erase_harness.i[4554,4567] [2025-02-08 01:26:39,960 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:26:39,960 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:26:39,961 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:26:39,961 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:26:39,961 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:26:39,968 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:26:39,969 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:26:39,971 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:26:39,971 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:26:39,973 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:26:39,974 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:26:39,974 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:26:39,974 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:26:40,035 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:26:40,036 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:26:40,036 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:26:40,037 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:26:40,037 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:26:40,041 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:26:40,042 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:26:40,045 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:26:40,055 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7825-7836] [2025-02-08 01:26:40,072 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:26:40,075 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:26:40,076 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 01:26:40,214 INFO L204 MainTranslator]: Completed translation [2025-02-08 01:26:40,215 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:26:40 WrapperNode [2025-02-08 01:26:40,215 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-08 01:26:40,216 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-08 01:26:40,216 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-08 01:26:40,217 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-08 01:26:40,221 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:26:40" (1/1) ... [2025-02-08 01:26:40,269 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:26:40" (1/1) ... [2025-02-08 01:26:40,308 INFO L138 Inliner]: procedures = 678, calls = 1677, calls flagged for inlining = 52, calls inlined = 11, statements flattened = 734 [2025-02-08 01:26:40,309 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-08 01:26:40,309 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-08 01:26:40,309 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-08 01:26:40,309 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-08 01:26:40,336 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:26:40" (1/1) ... [2025-02-08 01:26:40,336 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:26:40" (1/1) ... [2025-02-08 01:26:40,341 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:26:40" (1/1) ... [2025-02-08 01:26:40,399 INFO L175 MemorySlicer]: Split 331 memory accesses to 6 slices as follows [238, 2, 3, 73, 9, 6]. 72 percent of accesses are in the largest equivalence class. The 24 initializations are split as follows [6, 2, 1, 10, 5, 0]. The 243 writes are split as follows [232, 0, 1, 6, 2, 2]. [2025-02-08 01:26:40,400 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:26:40" (1/1) ... [2025-02-08 01:26:40,400 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:26:40" (1/1) ... [2025-02-08 01:26:40,424 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:26:40" (1/1) ... [2025-02-08 01:26:40,429 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:26:40" (1/1) ... [2025-02-08 01:26:40,441 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:26:40" (1/1) ... [2025-02-08 01:26:40,448 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:26:40" (1/1) ... [2025-02-08 01:26:40,457 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-08 01:26:40,459 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-08 01:26:40,459 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-08 01:26:40,459 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-08 01:26:40,460 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:26:40" (1/1) ... [2025-02-08 01:26:40,464 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 01:26:40,477 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 01:26:40,490 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-02-08 01:26:40,493 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-02-08 01:26:40,512 INFO L130 BoogieDeclarations]: Found specification of procedure memmove_impl [2025-02-08 01:26:40,512 INFO L138 BoogieDeclarations]: Found implementation of procedure memmove_impl [2025-02-08 01:26:40,512 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-02-08 01:26:40,512 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2025-02-08 01:26:40,512 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2025-02-08 01:26:40,512 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2025-02-08 01:26:40,512 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2025-02-08 01:26:40,513 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2025-02-08 01:26:40,513 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2025-02-08 01:26:40,513 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2025-02-08 01:26:40,513 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2025-02-08 01:26:40,513 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2025-02-08 01:26:40,513 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2025-02-08 01:26:40,514 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2025-02-08 01:26:40,514 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2025-02-08 01:26:40,514 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-02-08 01:26:40,514 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-02-08 01:26:40,514 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-02-08 01:26:40,514 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-02-08 01:26:40,514 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2025-02-08 01:26:40,514 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2025-02-08 01:26:40,514 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2025-02-08 01:26:40,514 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2025-02-08 01:26:40,515 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-02-08 01:26:40,515 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-02-08 01:26:40,515 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-02-08 01:26:40,515 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-08 01:26:40,515 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint8_t [2025-02-08 01:26:40,515 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint8_t [2025-02-08 01:26:40,515 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-02-08 01:26:40,515 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-02-08 01:26:40,515 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-02-08 01:26:40,516 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2025-02-08 01:26:40,516 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2025-02-08 01:26:40,516 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2025-02-08 01:26:40,516 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-08 01:26:40,516 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-08 01:26:40,516 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2025-02-08 01:26:40,516 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2025-02-08 01:26:40,516 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2025-02-08 01:26:40,516 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2025-02-08 01:26:40,516 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_size_t [2025-02-08 01:26:40,517 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_size_t [2025-02-08 01:26:40,517 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2025-02-08 01:26:40,517 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2025-02-08 01:26:40,517 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2025-02-08 01:26:40,517 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2025-02-08 01:26:40,518 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2025-02-08 01:26:40,518 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2025-02-08 01:26:40,518 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2025-02-08 01:26:40,518 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2025-02-08 01:26:40,518 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_length [2025-02-08 01:26:40,518 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_length [2025-02-08 01:26:40,518 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-02-08 01:26:40,518 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-02-08 01:26:40,518 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_pop_back [2025-02-08 01:26:40,518 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_pop_back [2025-02-08 01:26:40,518 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-02-08 01:26:40,518 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-02-08 01:26:40,518 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-02-08 01:26:40,518 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-02-08 01:26:40,518 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2025-02-08 01:26:40,518 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2025-02-08 01:26:40,518 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2025-02-08 01:26:40,519 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2025-02-08 01:26:40,519 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2025-02-08 01:26:40,519 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2025-02-08 01:26:40,519 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2025-02-08 01:26:40,519 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2025-02-08 01:26:40,519 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2025-02-08 01:26:40,519 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2025-02-08 01:26:40,519 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2025-02-08 01:26:40,519 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2025-02-08 01:26:40,519 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2025-02-08 01:26:40,519 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-02-08 01:26:40,519 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-02-08 01:26:40,520 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-02-08 01:26:40,520 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-02-08 01:26:40,520 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2025-02-08 01:26:40,520 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2025-02-08 01:26:40,520 INFO L130 BoogieDeclarations]: Found specification of procedure my_memmove [2025-02-08 01:26:40,520 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memmove [2025-02-08 01:26:40,520 INFO L130 BoogieDeclarations]: Found specification of procedure memset_impl [2025-02-08 01:26:40,520 INFO L138 BoogieDeclarations]: Found implementation of procedure memset_impl [2025-02-08 01:26:40,520 INFO L130 BoogieDeclarations]: Found specification of procedure my_memset [2025-02-08 01:26:40,520 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memset [2025-02-08 01:26:40,520 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2025-02-08 01:26:40,520 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2025-02-08 01:26:40,520 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-08 01:26:40,520 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-02-08 01:26:40,520 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-02-08 01:26:40,520 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-02-08 01:26:40,520 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-02-08 01:26:40,521 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2025-02-08 01:26:40,745 INFO L257 CfgBuilder]: Building ICFG [2025-02-08 01:26:40,747 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-08 01:26:40,785 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L2782: havoc #t~malloc77.base, #t~malloc77.offset; [2025-02-08 01:26:40,788 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L267: havoc #t~nondet10; [2025-02-08 01:26:40,803 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L263: havoc #t~nondet6; [2025-02-08 01:26:40,821 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L2588: havoc #t~ret57#1; [2025-02-08 01:26:40,824 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L7446: havoc #t~ret688.base, #t~ret688.offset; [2025-02-08 01:26:40,892 INFO L1324 $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; [2025-02-08 01:26:40,895 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L261: havoc #t~nondet4; [2025-02-08 01:26:40,899 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L7393: havoc #t~ret682.base, #t~ret682.offset; [2025-02-08 01:26:46,024 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L3355: havoc aws_array_list_pop_front_#t~ret182#1;aws_array_list_erase_#t~ret197#1 := aws_array_list_pop_front_#res#1;havoc aws_array_list_pop_front_#t~ret178#1, aws_array_list_pop_front_#t~ret179#1, aws_array_list_pop_front_#t~ret180#1, aws_array_list_pop_front_#t~ret181#1, aws_array_list_pop_front_#t~ret182#1, aws_array_list_pop_front_~list#1.base, aws_array_list_pop_front_~list#1.offset;havoc aws_array_list_pop_front_#in~list#1.base, aws_array_list_pop_front_#in~list#1.offset;assume { :end_inline_aws_array_list_pop_front } true;assume -2147483648 <= aws_array_list_erase_#t~ret197#1 && aws_array_list_erase_#t~ret197#1 <= 2147483647;havoc aws_array_list_erase_#t~ret197#1; [2025-02-08 01:26:46,025 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L3387: havoc aws_array_list_erase_#t~ret196#1; [2025-02-08 01:26:46,284 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L3445: havoc #t~ret230; [2025-02-08 01:26:46,285 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L3432: havoc ~last_item_offset~1; [2025-02-08 01:26:46,366 INFO L? ?]: Removed 141 outVars from TransFormulas that were not future-live. [2025-02-08 01:26:46,367 INFO L308 CfgBuilder]: Performing block encoding [2025-02-08 01:26:46,381 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-08 01:26:46,381 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-08 01:26:46,382 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 01:26:46 BoogieIcfgContainer [2025-02-08 01:26:46,382 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-08 01:26:46,383 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-08 01:26:46,383 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-08 01:26:46,387 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-08 01:26:46,387 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.02 01:26:38" (1/3) ... [2025-02-08 01:26:46,388 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65d38cb8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 01:26:46, skipping insertion in model container [2025-02-08 01:26:46,388 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:26:40" (2/3) ... [2025-02-08 01:26:46,388 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65d38cb8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 01:26:46, skipping insertion in model container [2025-02-08 01:26:46,388 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 01:26:46" (3/3) ... [2025-02-08 01:26:46,389 INFO L128 eAbstractionObserver]: Analyzing ICFG aws_array_list_erase_harness.i [2025-02-08 01:26:46,400 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-08 01:26:46,402 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG aws_array_list_erase_harness.i that has 21 procedures, 250 locations, 1 initial locations, 0 loop locations, and 1 error locations. [2025-02-08 01:26:46,460 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-08 01:26:46,468 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;@41d0e05e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-08 01:26:46,468 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-02-08 01:26:46,474 INFO L276 IsEmpty]: Start isEmpty. Operand has 250 states, 135 states have (on average 1.2) internal successors, (162), 141 states have internal predecessors, (162), 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) [2025-02-08 01:26:46,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2025-02-08 01:26:46,483 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 01:26:46,483 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] [2025-02-08 01:26:46,484 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-08 01:26:46,487 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 01:26:46,488 INFO L85 PathProgramCache]: Analyzing trace with hash 1347381289, now seen corresponding path program 1 times [2025-02-08 01:26:46,493 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 01:26:46,494 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [328168353] [2025-02-08 01:26:46,494 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 01:26:46,494 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 01:26:51,259 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 86 statements into 1 equivalence classes. [2025-02-08 01:26:51,558 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 86 of 86 statements. [2025-02-08 01:26:51,558 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 01:26:51,559 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:26:51,950 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2025-02-08 01:26:51,950 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 01:26:51,950 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [328168353] [2025-02-08 01:26:51,951 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [328168353] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 01:26:51,951 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1858654494] [2025-02-08 01:26:51,951 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 01:26:51,951 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 01:26:51,951 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 01:26:51,954 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 01:26:51,956 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-02-08 01:26:56,406 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 86 statements into 1 equivalence classes. [2025-02-08 01:26:56,851 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 86 of 86 statements. [2025-02-08 01:26:56,851 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 01:26:56,851 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:26:56,869 INFO L256 TraceCheckSpWp]: Trace formula consists of 4132 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-02-08 01:26:56,878 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 01:26:56,889 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2025-02-08 01:26:56,893 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 01:26:56,893 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1858654494] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 01:26:56,893 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-08 01:26:56,894 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2025-02-08 01:26:56,895 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [324053396] [2025-02-08 01:26:56,896 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 01:26:56,899 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-02-08 01:26:56,899 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 01:26:56,914 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-02-08 01:26:56,915 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-08 01:26:56,918 INFO L87 Difference]: Start difference. First operand has 250 states, 135 states have (on average 1.2) internal successors, (162), 141 states have internal predecessors, (162), 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 17.0) internal successors, (34), 2 states have internal predecessors, (34), 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) [2025-02-08 01:26:56,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 01:26:56,969 INFO L93 Difference]: Finished difference Result 492 states and 722 transitions. [2025-02-08 01:26:56,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-02-08 01:26:56,970 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 17.0) internal successors, (34), 2 states have internal predecessors, (34), 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 86 [2025-02-08 01:26:56,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 01:26:56,978 INFO L225 Difference]: With dead ends: 492 [2025-02-08 01:26:56,978 INFO L226 Difference]: Without dead ends: 232 [2025-02-08 01:26:56,982 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-08 01:26:56,984 INFO L435 NwaCegarLoop]: 336 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, 336 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 [2025-02-08 01:26:56,985 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 336 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-08 01:26:56,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 232 states. [2025-02-08 01:26:57,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 232 to 232. [2025-02-08 01:26:57,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 232 states, 126 states have (on average 1.1825396825396826) internal successors, (149), 131 states have internal predecessors, (149), 85 states have call successors, (85), 20 states have call predecessors, (85), 20 states have return successors, (80), 80 states have call predecessors, (80), 80 states have call successors, (80) [2025-02-08 01:26:57,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 232 states and 314 transitions. [2025-02-08 01:26:57,041 INFO L78 Accepts]: Start accepts. Automaton has 232 states and 314 transitions. Word has length 86 [2025-02-08 01:26:57,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 01:26:57,042 INFO L471 AbstractCegarLoop]: Abstraction has 232 states and 314 transitions. [2025-02-08 01:26:57,042 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 17.0) internal successors, (34), 2 states have internal predecessors, (34), 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) [2025-02-08 01:26:57,042 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 314 transitions. [2025-02-08 01:26:57,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2025-02-08 01:26:57,046 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 01:26:57,046 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] [2025-02-08 01:26:57,059 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2025-02-08 01:26:57,250 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2025-02-08 01:26:57,250 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-08 01:26:57,251 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 01:26:57,251 INFO L85 PathProgramCache]: Analyzing trace with hash 183845927, now seen corresponding path program 1 times [2025-02-08 01:26:57,251 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 01:26:57,251 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [421708613] [2025-02-08 01:26:57,251 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 01:26:57,251 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 01:27:01,242 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 86 statements into 1 equivalence classes. [2025-02-08 01:27:01,405 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 86 of 86 statements. [2025-02-08 01:27:01,405 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 01:27:01,405 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:27:03,590 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 11 proven. 10 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2025-02-08 01:27:03,591 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 01:27:03,591 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [421708613] [2025-02-08 01:27:03,591 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [421708613] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 01:27:03,591 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1789265094] [2025-02-08 01:27:03,591 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 01:27:03,591 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 01:27:03,591 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 01:27:03,593 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 01:27:03,595 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-02-08 01:27:07,992 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 86 statements into 1 equivalence classes. [2025-02-08 01:27:08,397 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 86 of 86 statements. [2025-02-08 01:27:08,397 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 01:27:08,398 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:27:08,416 INFO L256 TraceCheckSpWp]: Trace formula consists of 4132 conjuncts, 61 conjuncts are in the unsatisfiable core [2025-02-08 01:27:08,425 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 01:27:10,987 WARN L873 $PredicateComparison]: unable to prove that (exists ((v_ensure_array_list_has_allocated_data_member_~list.offset_8 Int)) (and (= (store |c_old(#memory_$Pointer$#3.base)| |c_ensure_array_list_has_allocated_data_member_#in~list.base| (store (select |c_old(#memory_$Pointer$#3.base)| |c_ensure_array_list_has_allocated_data_member_#in~list.base|) v_ensure_array_list_has_allocated_data_member_~list.offset_8 (select (select |c_#memory_$Pointer$#3.base| |c_ensure_array_list_has_allocated_data_member_#in~list.base|) v_ensure_array_list_has_allocated_data_member_~list.offset_8))) |c_#memory_$Pointer$#3.base|) (<= v_ensure_array_list_has_allocated_data_member_~list.offset_8 |c_ensure_array_list_has_allocated_data_member_#in~list.offset|) (= |c_#memory_$Pointer$#3.offset| (store |c_old(#memory_$Pointer$#3.offset)| |c_ensure_array_list_has_allocated_data_member_#in~list.base| (store (select |c_old(#memory_$Pointer$#3.offset)| |c_ensure_array_list_has_allocated_data_member_#in~list.base|) v_ensure_array_list_has_allocated_data_member_~list.offset_8 (select (select |c_#memory_$Pointer$#3.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 [2025-02-08 01:27:11,115 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-02-08 01:27:11,120 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 [2025-02-08 01:27:11,172 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-02-08 01:27:11,173 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 [2025-02-08 01:27:14,625 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 47 proven. 16 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2025-02-08 01:27:14,626 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 01:27:20,256 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1789265094] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 01:27:20,257 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-02-08 01:27:20,257 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 13] total 16 [2025-02-08 01:27:20,257 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [747813202] [2025-02-08 01:27:20,257 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-02-08 01:27:20,258 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2025-02-08 01:27:20,258 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 01:27:20,258 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2025-02-08 01:27:20,259 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=536, Unknown=1, NotChecked=46, Total=650 [2025-02-08 01:27:20,259 INFO L87 Difference]: Start difference. First operand 232 states and 314 transitions. Second operand has 16 states, 14 states have (on average 5.0) internal successors, (70), 13 states have internal predecessors, (70), 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) [2025-02-08 01:27:24,326 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-02-08 01:27:28,712 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.38s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-02-08 01:27:33,118 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.40s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-02-08 01:27:37,493 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.37s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-02-08 01:27:41,869 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.37s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers []