./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_byte_buf_eq_ignore_case_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c00e63dc 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_byte_buf_eq_ignore_case_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 378441a9bcec2a4eb6d1dae870bed526bd742843c0fa114d0ed9d4e2e4a551a9 --- Real Ultimate output --- This is Ultimate 0.3.0-?-c00e63d-m [2025-02-06 04:56:12,498 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-06 04:56:12,532 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2025-02-06 04:56:12,535 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-06 04:56:12,535 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-06 04:56:12,559 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-06 04:56:12,560 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-06 04:56:12,560 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-06 04:56:12,560 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-06 04:56:12,560 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-06 04:56:12,560 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-06 04:56:12,560 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-06 04:56:12,561 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-06 04:56:12,561 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-06 04:56:12,561 INFO L153 SettingsManager]: * Use SBE=true [2025-02-06 04:56:12,561 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-06 04:56:12,561 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-06 04:56:12,562 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-06 04:56:12,562 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-06 04:56:12,562 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-06 04:56:12,562 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-06 04:56:12,562 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-06 04:56:12,563 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-06 04:56:12,563 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-06 04:56:12,563 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-06 04:56:12,563 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-06 04:56:12,563 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-06 04:56:12,563 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-06 04:56:12,563 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-06 04:56:12,563 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 04:56:12,563 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-06 04:56:12,563 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-06 04:56:12,563 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-06 04:56:12,563 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-06 04:56:12,563 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-06 04:56:12,563 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-06 04:56:12,563 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-06 04:56:12,563 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-06 04:56:12,564 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-06 04:56:12,564 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-06 04:56:12,564 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 -> 378441a9bcec2a4eb6d1dae870bed526bd742843c0fa114d0ed9d4e2e4a551a9 [2025-02-06 04:56:12,775 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-06 04:56:12,783 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-06 04:56:12,784 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-06 04:56:12,785 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-06 04:56:12,785 INFO L274 PluginConnector]: CDTParser initialized [2025-02-06 04:56:12,786 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_byte_buf_eq_ignore_case_harness.i [2025-02-06 04:56:13,947 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/c11d9cc9e/eaf1a7bfb32b4b1e9e75be6021770e51/FLAG9110cc3d8 [2025-02-06 04:56:14,433 INFO L384 CDTParser]: Found 1 translation units. [2025-02-06 04:56:14,435 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_byte_buf_eq_ignore_case_harness.i [2025-02-06 04:56:14,467 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/c11d9cc9e/eaf1a7bfb32b4b1e9e75be6021770e51/FLAG9110cc3d8 [2025-02-06 04:56:14,534 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/c11d9cc9e/eaf1a7bfb32b4b1e9e75be6021770e51 [2025-02-06 04:56:14,536 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-06 04:56:14,537 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-06 04:56:14,538 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-06 04:56:14,539 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-06 04:56:14,542 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-06 04:56:14,543 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 04:56:14" (1/1) ... [2025-02-06 04:56:14,544 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@235ebeca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:56:14, skipping insertion in model container [2025-02-06 04:56:14,545 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 04:56:14" (1/1) ... [2025-02-06 04:56:14,620 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-06 04:56:14,822 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_byte_buf_eq_ignore_case_harness.i[4501,4514] [2025-02-06 04:56:14,829 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_byte_buf_eq_ignore_case_harness.i[4561,4574] [2025-02-06 04:56:15,384 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:56:15,384 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:56:15,386 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:56:15,386 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:56:15,387 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:56:15,400 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:56:15,401 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:56:15,402 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:56:15,402 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:56:15,786 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:56:15,786 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:56:15,832 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 04:56:15,864 INFO L200 MainTranslator]: Completed pre-run [2025-02-06 04:56:15,873 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_byte_buf_eq_ignore_case_harness.i[4501,4514] [2025-02-06 04:56:15,873 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_byte_buf_eq_ignore_case_harness.i[4561,4574] [2025-02-06 04:56:15,898 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:56:15,898 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:56:15,898 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:56:15,899 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:56:15,899 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:56:15,903 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:56:15,903 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:56:15,904 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:56:15,904 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:56:16,014 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : "+r"(index)); [8277] [2025-02-06 04:56:16,015 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:56:16,015 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:56:16,027 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [8763-8774] [2025-02-06 04:56:16,103 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 04:56:16,242 INFO L204 MainTranslator]: Completed translation [2025-02-06 04:56:16,243 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:56:16 WrapperNode [2025-02-06 04:56:16,243 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-06 04:56:16,244 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-06 04:56:16,245 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-06 04:56:16,245 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-06 04:56:16,249 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:56:16" (1/1) ... [2025-02-06 04:56:16,385 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:56:16" (1/1) ... [2025-02-06 04:56:16,449 INFO L138 Inliner]: procedures = 680, calls = 2663, calls flagged for inlining = 59, calls inlined = 5, statements flattened = 876 [2025-02-06 04:56:16,449 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-06 04:56:16,450 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-06 04:56:16,450 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-06 04:56:16,451 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-06 04:56:16,458 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:56:16" (1/1) ... [2025-02-06 04:56:16,458 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:56:16" (1/1) ... [2025-02-06 04:56:16,464 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:56:16" (1/1) ... [2025-02-06 04:56:16,523 INFO L175 MemorySlicer]: Split 576 memory accesses to 6 slices as follows [2, 259, 238, 62, 9, 6]. 45 percent of accesses are in the largest equivalence class. The 29 initializations are split as follows [2, 0, 6, 16, 5, 0]. The 497 writes are split as follows [0, 257, 232, 6, 0, 2]. [2025-02-06 04:56:16,524 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:56:16" (1/1) ... [2025-02-06 04:56:16,524 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:56:16" (1/1) ... [2025-02-06 04:56:16,562 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:56:16" (1/1) ... [2025-02-06 04:56:16,563 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:56:16" (1/1) ... [2025-02-06 04:56:16,576 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:56:16" (1/1) ... [2025-02-06 04:56:16,578 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:56:16" (1/1) ... [2025-02-06 04:56:16,589 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-06 04:56:16,592 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-06 04:56:16,592 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-06 04:56:16,593 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-06 04:56:16,593 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:56:16" (1/1) ... [2025-02-06 04:56:16,598 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 04:56:16,606 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 04:56:16,626 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) [2025-02-06 04:56:16,635 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 [2025-02-06 04:56:16,653 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_is_valid [2025-02-06 04:56:16,653 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_is_valid [2025-02-06 04:56:16,653 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_eq_ignore_case [2025-02-06 04:56:16,653 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_eq_ignore_case [2025-02-06 04:56:16,653 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-02-06 04:56:16,653 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2025-02-06 04:56:16,653 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2025-02-06 04:56:16,653 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2025-02-06 04:56:16,653 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2025-02-06 04:56:16,653 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2025-02-06 04:56:16,653 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2025-02-06 04:56:16,653 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2025-02-06 04:56:16,653 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2025-02-06 04:56:16,654 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-02-06 04:56:16,654 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-02-06 04:56:16,654 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-02-06 04:56:16,654 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-02-06 04:56:16,654 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2025-02-06 04:56:16,654 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2025-02-06 04:56:16,654 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-02-06 04:56:16,654 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-02-06 04:56:16,654 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-02-06 04:56:16,654 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-06 04:56:16,654 INFO L130 BoogieDeclarations]: Found specification of procedure save_byte_from_array [2025-02-06 04:56:16,654 INFO L138 BoogieDeclarations]: Found implementation of procedure save_byte_from_array [2025-02-06 04:56:16,654 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-02-06 04:56:16,654 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-02-06 04:56:16,654 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-02-06 04:56:16,654 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2025-02-06 04:56:16,654 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2025-02-06 04:56:16,654 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2025-02-06 04:56:16,654 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_byte_buf_has_allocated_buffer_member [2025-02-06 04:56:16,654 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_byte_buf_has_allocated_buffer_member [2025-02-06 04:56:16,654 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-06 04:56:16,654 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-06 04:56:16,654 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2025-02-06 04:56:16,654 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2025-02-06 04:56:16,654 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2025-02-06 04:56:16,654 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2025-02-06 04:56:16,654 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2025-02-06 04:56:16,654 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2025-02-06 04:56:16,654 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2025-02-06 04:56:16,654 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2025-02-06 04:56:16,654 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2025-02-06 04:56:16,654 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2025-02-06 04:56:16,654 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-02-06 04:56:16,654 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-02-06 04:56:16,655 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-02-06 04:56:16,655 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-02-06 04:56:16,655 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-02-06 04:56:16,655 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-02-06 04:56:16,655 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2025-02-06 04:56:16,655 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2025-02-06 04:56:16,655 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2025-02-06 04:56:16,655 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2025-02-06 04:56:16,655 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2025-02-06 04:56:16,655 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2025-02-06 04:56:16,655 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2025-02-06 04:56:16,655 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2025-02-06 04:56:16,655 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2025-02-06 04:56:16,655 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2025-02-06 04:56:16,655 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2025-02-06 04:56:16,655 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_is_bounded [2025-02-06 04:56:16,655 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_is_bounded [2025-02-06 04:56:16,655 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-02-06 04:56:16,655 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-02-06 04:56:16,655 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-02-06 04:56:16,655 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-02-06 04:56:16,655 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2025-02-06 04:56:16,655 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2025-02-06 04:56:16,655 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_buf_equivalence [2025-02-06 04:56:16,655 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_buf_equivalence [2025-02-06 04:56:16,655 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-06 04:56:16,655 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-02-06 04:56:16,655 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-02-06 04:56:16,655 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-02-06 04:56:16,657 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-02-06 04:56:16,657 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2025-02-06 04:56:16,855 INFO L257 CfgBuilder]: Building ICFG [2025-02-06 04:56:16,856 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-06 04:56:16,890 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L6886: havoc #t~malloc557.base, #t~malloc557.offset; [2025-02-06 04:56:16,923 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L263: havoc nondet_size_t_#t~nondet6#1; [2025-02-06 04:56:16,994 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L7385: havoc #t~mem679;havoc #t~mem680;havoc #t~short681;havoc #t~mem682.base, #t~mem682.offset;havoc #t~short683;havoc #t~mem684;havoc #t~mem685;havoc #t~mem686;havoc #t~short687;havoc #t~mem688;havoc #t~mem689.base, #t~mem689.offset;havoc #t~short690;havoc #t~short691;havoc #t~short692;havoc #t~short693; [2025-02-06 04:56:17,004 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L261: havoc #t~nondet4; [2025-02-06 04:56:17,008 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L6600: havoc #t~mem477; [2025-02-06 04:56:23,819 INFO L? ?]: Removed 79 outVars from TransFormulas that were not future-live. [2025-02-06 04:56:23,819 INFO L308 CfgBuilder]: Performing block encoding [2025-02-06 04:56:23,827 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-06 04:56:23,827 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-06 04:56:23,827 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 04:56:23 BoogieIcfgContainer [2025-02-06 04:56:23,827 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-06 04:56:23,829 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-06 04:56:23,829 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-06 04:56:23,832 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-06 04:56:23,832 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.02 04:56:14" (1/3) ... [2025-02-06 04:56:23,833 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10f0b401 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 04:56:23, skipping insertion in model container [2025-02-06 04:56:23,833 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:56:16" (2/3) ... [2025-02-06 04:56:23,833 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10f0b401 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 04:56:23, skipping insertion in model container [2025-02-06 04:56:23,833 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 04:56:23" (3/3) ... [2025-02-06 04:56:23,833 INFO L128 eAbstractionObserver]: Analyzing ICFG aws_byte_buf_eq_ignore_case_harness.i [2025-02-06 04:56:23,843 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-06 04:56:23,844 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG aws_byte_buf_eq_ignore_case_harness.i that has 13 procedures, 141 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-02-06 04:56:23,896 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-06 04:56:23,911 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;@33f25f5e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-06 04:56:23,911 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-02-06 04:56:23,914 INFO L276 IsEmpty]: Start isEmpty. Operand has 141 states, 85 states have (on average 1.2352941176470589) internal successors, (105), 86 states have internal predecessors, (105), 42 states have call successors, (42), 12 states have call predecessors, (42), 12 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2025-02-06 04:56:23,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2025-02-06 04:56:23,929 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 04:56:23,929 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 4, 4, 4, 4, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 04:56:23,929 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 04:56:23,932 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 04:56:23,933 INFO L85 PathProgramCache]: Analyzing trace with hash 1506560931, now seen corresponding path program 1 times [2025-02-06 04:56:23,937 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 04:56:23,938 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1499639519] [2025-02-06 04:56:23,938 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 04:56:23,938 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 04:57:29,614 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 113 statements into 1 equivalence classes. [2025-02-06 04:57:30,084 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 113 of 113 statements. [2025-02-06 04:57:30,084 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 04:57:30,085 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 04:57:30,800 INFO L134 CoverageAnalysis]: Checked inductivity of 121 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2025-02-06 04:57:30,801 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 04:57:30,801 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1499639519] [2025-02-06 04:57:30,801 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1499639519] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 04:57:30,801 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [621837883] [2025-02-06 04:57:30,801 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 04:57:30,802 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 04:57:30,802 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 04:57:30,804 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) [2025-02-06 04:57:30,805 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