./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_string_compare_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_string_compare_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 66fb9bfec5c458b51d86deb6748dd65f162e7ac6a772af5f3fec59d101a18d8d --- Real Ultimate output --- This is Ultimate 0.3.0-?-c00e63d-m [2025-02-06 05:24:23,369 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-06 05:24:23,407 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2025-02-06 05:24:23,410 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-06 05:24:23,410 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-06 05:24:23,422 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-06 05:24:23,423 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-06 05:24:23,423 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-06 05:24:23,423 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-06 05:24:23,423 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-06 05:24:23,423 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-06 05:24:23,423 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-06 05:24:23,424 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-06 05:24:23,424 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-06 05:24:23,424 INFO L153 SettingsManager]: * Use SBE=true [2025-02-06 05:24:23,424 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-06 05:24:23,424 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-06 05:24:23,424 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-06 05:24:23,424 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-06 05:24:23,424 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-06 05:24:23,424 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-06 05:24:23,425 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-06 05:24:23,425 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-06 05:24:23,425 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-06 05:24:23,425 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-06 05:24:23,425 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-06 05:24:23,425 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-06 05:24:23,425 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-06 05:24:23,425 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-06 05:24:23,425 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 05:24:23,425 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-06 05:24:23,426 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-06 05:24:23,426 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-06 05:24:23,426 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-06 05:24:23,426 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-06 05:24:23,426 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-06 05:24:23,426 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-06 05:24:23,426 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-06 05:24:23,426 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-06 05:24:23,426 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-06 05:24:23,426 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 -> 66fb9bfec5c458b51d86deb6748dd65f162e7ac6a772af5f3fec59d101a18d8d [2025-02-06 05:24:23,618 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-06 05:24:23,631 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-06 05:24:23,633 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-06 05:24:23,633 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-06 05:24:23,637 INFO L274 PluginConnector]: CDTParser initialized [2025-02-06 05:24:23,639 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_string_compare_harness.i [2025-02-06 05:24:24,793 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/c05162cd1/3f83abdac62f41e8a6dc135c75a38bca/FLAG2f66f3db3 [2025-02-06 05:24:25,281 INFO L384 CDTParser]: Found 1 translation units. [2025-02-06 05:24:25,283 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_string_compare_harness.i [2025-02-06 05:24:25,322 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/c05162cd1/3f83abdac62f41e8a6dc135c75a38bca/FLAG2f66f3db3 [2025-02-06 05:24:25,334 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/c05162cd1/3f83abdac62f41e8a6dc135c75a38bca [2025-02-06 05:24:25,337 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-06 05:24:25,338 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-06 05:24:25,339 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-06 05:24:25,339 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-06 05:24:25,344 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-06 05:24:25,344 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 05:24:25" (1/1) ... [2025-02-06 05:24:25,346 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@27cc1f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:24:25, skipping insertion in model container [2025-02-06 05:24:25,346 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 05:24:25" (1/1) ... [2025-02-06 05:24:25,415 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-06 05:24:25,593 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_string_compare_harness.i[4492,4505] [2025-02-06 05:24:25,600 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_string_compare_harness.i[4552,4565] [2025-02-06 05:24:26,064 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:24:26,065 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:24:26,065 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:24:26,066 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:24:26,066 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:24:26,074 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:24:26,075 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:24:26,076 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:24:26,076 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:24:26,524 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:24:26,525 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:24:26,645 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 05:24:26,701 INFO L200 MainTranslator]: Completed pre-run [2025-02-06 05:24:26,714 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_string_compare_harness.i[4492,4505] [2025-02-06 05:24:26,714 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_string_compare_harness.i[4552,4565] [2025-02-06 05:24:26,745 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:24:26,745 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:24:26,746 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:24:26,748 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:24:26,748 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:24:26,752 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:24:26,753 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:24:26,753 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:24:26,755 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:24:26,820 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : "+r"(index)); [8253] [2025-02-06 05:24:26,822 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:24:26,822 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:24:26,831 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [8739-8750] [2025-02-06 05:24:26,850 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 05:24:27,034 INFO L204 MainTranslator]: Completed translation [2025-02-06 05:24:27,035 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:24:27 WrapperNode [2025-02-06 05:24:27,036 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-06 05:24:27,036 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-06 05:24:27,037 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-06 05:24:27,037 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-06 05:24:27,041 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:24:27" (1/1) ... [2025-02-06 05:24:27,087 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:24:27" (1/1) ... [2025-02-06 05:24:27,139 INFO L138 Inliner]: procedures = 682, calls = 2786, calls flagged for inlining = 57, calls inlined = 5, statements flattened = 823 [2025-02-06 05:24:27,143 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-06 05:24:27,143 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-06 05:24:27,143 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-06 05:24:27,143 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-06 05:24:27,157 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:24:27" (1/1) ... [2025-02-06 05:24:27,158 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:24:27" (1/1) ... [2025-02-06 05:24:27,165 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:24:27" (1/1) ... [2025-02-06 05:24:27,224 INFO L175 MemorySlicer]: Split 529 memory accesses to 6 slices as follows [2, 11, 257, 238, 16, 5]. 49 percent of accesses are in the largest equivalence class. The 29 initializations are split as follows [2, 0, 0, 6, 16, 5]. The 492 writes are split as follows [0, 3, 257, 232, 0, 0]. [2025-02-06 05:24:27,225 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:24:27" (1/1) ... [2025-02-06 05:24:27,225 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:24:27" (1/1) ... [2025-02-06 05:24:27,259 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:24:27" (1/1) ... [2025-02-06 05:24:27,265 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:24:27" (1/1) ... [2025-02-06 05:24:27,273 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:24:27" (1/1) ... [2025-02-06 05:24:27,275 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:24:27" (1/1) ... [2025-02-06 05:24:27,286 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-06 05:24:27,287 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-06 05:24:27,287 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-06 05:24:27,287 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-06 05:24:27,288 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:24:27" (1/1) ... [2025-02-06 05:24:27,295 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 05:24:27,304 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 05:24:27,318 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 05:24:27,320 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 05:24:27,337 INFO L130 BoogieDeclarations]: Found specification of procedure aws_string_is_valid [2025-02-06 05:24:27,337 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_string_is_valid [2025-02-06 05:24:27,337 INFO L130 BoogieDeclarations]: Found specification of procedure aws_string_compare [2025-02-06 05:24:27,337 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_string_compare [2025-02-06 05:24:27,337 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_string_is_allocated_bounded_length [2025-02-06 05:24:27,337 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_string_is_allocated_bounded_length [2025-02-06 05:24:27,337 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2025-02-06 05:24:27,337 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2025-02-06 05:24:27,337 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2025-02-06 05:24:27,337 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2025-02-06 05:24:27,337 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2025-02-06 05:24:27,337 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2025-02-06 05:24:27,337 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2025-02-06 05:24:27,337 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2025-02-06 05:24:27,337 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-02-06 05:24:27,338 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-02-06 05:24:27,338 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-02-06 05:24:27,338 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-02-06 05:24:27,338 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2025-02-06 05:24:27,338 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2025-02-06 05:24:27,338 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-02-06 05:24:27,338 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-02-06 05:24:27,338 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-02-06 05:24:27,338 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-06 05:24:27,338 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-02-06 05:24:27,338 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-02-06 05:24:27,338 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-02-06 05:24:27,338 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2025-02-06 05:24:27,338 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2025-02-06 05:24:27,338 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2025-02-06 05:24:27,338 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-06 05:24:27,338 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-06 05:24:27,338 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2025-02-06 05:24:27,338 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2025-02-06 05:24:27,338 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2025-02-06 05:24:27,338 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2025-02-06 05:24:27,338 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2025-02-06 05:24:27,338 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2025-02-06 05:24:27,338 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2025-02-06 05:24:27,338 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2025-02-06 05:24:27,338 INFO L130 BoogieDeclarations]: Found specification of procedure aws_string_bytes [2025-02-06 05:24:27,338 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_string_bytes [2025-02-06 05:24:27,338 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-02-06 05:24:27,338 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-02-06 05:24:27,340 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2025-02-06 05:24:27,340 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2025-02-06 05:24:27,340 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2025-02-06 05:24:27,340 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2025-02-06 05:24:27,340 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2025-02-06 05:24:27,340 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2025-02-06 05:24:27,340 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2025-02-06 05:24:27,340 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2025-02-06 05:24:27,340 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2025-02-06 05:24:27,340 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2025-02-06 05:24:27,340 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-02-06 05:24:27,340 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-02-06 05:24:27,340 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-02-06 05:24:27,340 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-02-06 05:24:27,340 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2025-02-06 05:24:27,340 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2025-02-06 05:24:27,340 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-06 05:24:27,340 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-02-06 05:24:27,340 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-02-06 05:24:27,340 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-02-06 05:24:27,340 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-02-06 05:24:27,340 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2025-02-06 05:24:27,599 INFO L257 CfgBuilder]: Building ICFG [2025-02-06 05:24:27,601 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-06 05:24:27,634 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L6886: havoc #t~malloc557.base, #t~malloc557.offset; [2025-02-06 05:24:27,651 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L6256: havoc #t~mem472;havoc #t~short473;havoc #t~mem474;havoc #t~mem475;havoc #t~short476; [2025-02-06 05:24:27,652 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L266: havoc #t~nondet9; [2025-02-06 05:24:27,661 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L261: havoc #t~nondet4; [2025-02-06 05:24:27,715 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L6803: havoc #t~ret543#1.base, #t~ret543#1.offset; [2025-02-06 05:24:34,709 INFO L? ?]: Removed 81 outVars from TransFormulas that were not future-live. [2025-02-06 05:24:34,709 INFO L308 CfgBuilder]: Performing block encoding [2025-02-06 05:24:34,717 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-06 05:24:34,717 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-06 05:24:34,718 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 05:24:34 BoogieIcfgContainer [2025-02-06 05:24:34,718 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-06 05:24:34,719 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-06 05:24:34,721 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-06 05:24:34,724 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-06 05:24:34,724 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.02 05:24:25" (1/3) ... [2025-02-06 05:24:34,725 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62efb053 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 05:24:34, skipping insertion in model container [2025-02-06 05:24:34,725 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:24:27" (2/3) ... [2025-02-06 05:24:34,725 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62efb053 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 05:24:34, skipping insertion in model container [2025-02-06 05:24:34,725 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 05:24:34" (3/3) ... [2025-02-06 05:24:34,726 INFO L128 eAbstractionObserver]: Analyzing ICFG aws_string_compare_harness.i [2025-02-06 05:24:34,738 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-06 05:24:34,744 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG aws_string_compare_harness.i that has 11 procedures, 121 locations, 1 initial locations, 0 loop locations, and 1 error locations. [2025-02-06 05:24:34,776 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-06 05:24:34,783 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;@6f90add1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-06 05:24:34,783 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-02-06 05:24:34,786 INFO L276 IsEmpty]: Start isEmpty. Operand has 121 states, 76 states have (on average 1.2763157894736843) internal successors, (97), 77 states have internal predecessors, (97), 33 states have call successors, (33), 10 states have call predecessors, (33), 10 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) [2025-02-06 05:24:34,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2025-02-06 05:24:34,791 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 05:24:34,791 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 05:24:34,791 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 05:24:34,794 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 05:24:34,794 INFO L85 PathProgramCache]: Analyzing trace with hash -928018743, now seen corresponding path program 1 times [2025-02-06 05:24:34,799 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 05:24:34,799 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1847603232] [2025-02-06 05:24:34,799 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 05:24:34,800 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 05:25:37,071 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 50 statements into 1 equivalence classes. [2025-02-06 05:25:37,568 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 50 of 50 statements. [2025-02-06 05:25:37,568 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 05:25:37,569 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 05:25:38,119 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2025-02-06 05:25:38,120 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 05:25:38,120 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1847603232] [2025-02-06 05:25:38,120 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1847603232] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 05:25:38,120 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [349143303] [2025-02-06 05:25:38,120 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 05:25:38,120 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 05:25:38,120 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 05:25:38,122 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 05:25:38,126 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