./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_string_eq_byte_buf_harness_negated.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e2fb8bed Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/aws-c-common/aws_string_eq_byte_buf_harness_negated.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash c974750d72dbbdcad43b6c780cc7a00626a484b6d2da67e96b9032eaa6e0f23d --- Real Ultimate output --- This is Ultimate 0.3.0-?-e2fb8be-m [2025-03-08 18:18:09,832 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-08 18:18:09,875 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2025-03-08 18:18:09,881 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-08 18:18:09,882 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-08 18:18:09,904 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-08 18:18:09,904 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-08 18:18:09,904 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-08 18:18:09,904 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-08 18:18:09,904 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-08 18:18:09,904 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-08 18:18:09,904 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-08 18:18:09,905 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-08 18:18:09,905 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-08 18:18:09,905 INFO L153 SettingsManager]: * Use SBE=true [2025-03-08 18:18:09,905 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-08 18:18:09,905 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-08 18:18:09,905 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-08 18:18:09,905 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-08 18:18:09,905 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-08 18:18:09,905 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-08 18:18:09,905 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-08 18:18:09,905 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-08 18:18:09,905 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-08 18:18:09,905 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-08 18:18:09,907 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-08 18:18:09,907 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-08 18:18:09,907 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-08 18:18:09,907 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-08 18:18:09,907 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 18:18:09,907 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-08 18:18:09,908 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-08 18:18:09,908 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-08 18:18:09,908 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-08 18:18:09,908 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-08 18:18:09,908 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-08 18:18:09,908 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-08 18:18:09,908 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-08 18:18:09,908 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-08 18:18:09,908 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-08 18:18:09,908 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c974750d72dbbdcad43b6c780cc7a00626a484b6d2da67e96b9032eaa6e0f23d [2025-03-08 18:18:10,121 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-08 18:18:10,130 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-08 18:18:10,132 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-08 18:18:10,133 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-08 18:18:10,133 INFO L274 PluginConnector]: CDTParser initialized [2025-03-08 18:18:10,135 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_string_eq_byte_buf_harness_negated.i [2025-03-08 18:18:11,294 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1590eb623/26e5a41520ff481da991e83a095a97b9/FLAG8e32d06f9 [2025-03-08 18:18:11,696 INFO L384 CDTParser]: Found 1 translation units. [2025-03-08 18:18:11,697 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_string_eq_byte_buf_harness_negated.i [2025-03-08 18:18:11,726 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1590eb623/26e5a41520ff481da991e83a095a97b9/FLAG8e32d06f9 [2025-03-08 18:18:11,847 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1590eb623/26e5a41520ff481da991e83a095a97b9 [2025-03-08 18:18:11,849 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-08 18:18:11,850 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-08 18:18:11,851 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-08 18:18:11,851 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-08 18:18:11,853 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-08 18:18:11,854 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 06:18:11" (1/1) ... [2025-03-08 18:18:11,856 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@43ebbc5b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:18:11, skipping insertion in model container [2025-03-08 18:18:11,856 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 06:18:11" (1/1) ... [2025-03-08 18:18:11,927 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-08 18:18:12,082 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_string_eq_byte_buf_harness_negated.i[4496,4509] [2025-03-08 18:18:12,088 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_string_eq_byte_buf_harness_negated.i[4556,4569] [2025-03-08 18:18:12,523 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:18:12,524 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:18:12,524 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:18:12,525 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:18:12,525 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:18:12,533 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:18:12,534 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:18:12,535 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:18:12,535 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:18:12,961 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:18:12,962 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:18:13,042 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 18:18:13,089 INFO L200 MainTranslator]: Completed pre-run [2025-03-08 18:18:13,103 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_string_eq_byte_buf_harness_negated.i[4496,4509] [2025-03-08 18:18:13,103 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_string_eq_byte_buf_harness_negated.i[4556,4569] [2025-03-08 18:18:13,168 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:18:13,168 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:18:13,168 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:18:13,169 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:18:13,169 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:18:13,173 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:18:13,174 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:18:13,174 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:18:13,174 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:18:13,240 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : "+r"(index)); [8221] [2025-03-08 18:18:13,242 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:18:13,242 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:18:13,250 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [8707-8718] [2025-03-08 18:18:13,275 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 18:18:13,422 INFO L204 MainTranslator]: Completed translation [2025-03-08 18:18:13,423 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:18:13 WrapperNode [2025-03-08 18:18:13,424 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-08 18:18:13,424 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-08 18:18:13,425 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-08 18:18:13,425 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-08 18:18:13,429 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:18:13" (1/1) ... [2025-03-08 18:18:13,488 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:18:13" (1/1) ... [2025-03-08 18:18:13,542 INFO L138 Inliner]: procedures = 682, calls = 2798, calls flagged for inlining = 61, calls inlined = 8, statements flattened = 891 [2025-03-08 18:18:13,543 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-08 18:18:13,543 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-08 18:18:13,543 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-08 18:18:13,544 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-08 18:18:13,550 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:18:13" (1/1) ... [2025-03-08 18:18:13,551 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:18:13" (1/1) ... [2025-03-08 18:18:13,556 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:18:13" (1/1) ... [2025-03-08 18:18:13,608 INFO L175 MemorySlicer]: Split 549 memory accesses to 6 slices as follows [2, 20, 257, 238, 16, 16]. 47 percent of accesses are in the largest equivalence class. The 33 initializations are split as follows [2, 4, 0, 6, 16, 5]. The 494 writes are split as follows [0, 2, 257, 232, 0, 3]. [2025-03-08 18:18:13,608 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:18:13" (1/1) ... [2025-03-08 18:18:13,608 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:18:13" (1/1) ... [2025-03-08 18:18:13,640 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:18:13" (1/1) ... [2025-03-08 18:18:13,661 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:18:13" (1/1) ... [2025-03-08 18:18:13,667 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:18:13" (1/1) ... [2025-03-08 18:18:13,670 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:18:13" (1/1) ... [2025-03-08 18:18:13,678 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-08 18:18:13,678 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-08 18:18:13,678 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-08 18:18:13,678 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-08 18:18:13,682 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:18:13" (1/1) ... [2025-03-08 18:18:13,686 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 18:18:13,694 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 18:18:13,707 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-03-08 18:18:13,712 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-03-08 18:18:13,728 INFO L130 BoogieDeclarations]: Found specification of procedure aws_string_is_valid [2025-03-08 18:18:13,728 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_string_is_valid [2025-03-08 18:18:13,728 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_is_valid [2025-03-08 18:18:13,728 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_is_valid [2025-03-08 18:18:13,728 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_string_is_allocated_bounded_length [2025-03-08 18:18:13,728 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_string_is_allocated_bounded_length [2025-03-08 18:18:13,728 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-03-08 18:18:13,728 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2025-03-08 18:18:13,728 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2025-03-08 18:18:13,729 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2025-03-08 18:18:13,729 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2025-03-08 18:18:13,729 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2025-03-08 18:18:13,729 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2025-03-08 18:18:13,729 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2025-03-08 18:18:13,729 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2025-03-08 18:18:13,730 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-03-08 18:18:13,730 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-03-08 18:18:13,730 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-03-08 18:18:13,730 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-03-08 18:18:13,730 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2025-03-08 18:18:13,730 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2025-03-08 18:18:13,730 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-03-08 18:18:13,730 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-03-08 18:18:13,730 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-03-08 18:18:13,730 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-08 18:18:13,730 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-03-08 18:18:13,730 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-03-08 18:18:13,730 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-03-08 18:18:13,730 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2025-03-08 18:18:13,730 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2025-03-08 18:18:13,730 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2025-03-08 18:18:13,730 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-08 18:18:13,730 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-08 18:18:13,730 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2025-03-08 18:18:13,730 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2025-03-08 18:18:13,730 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2025-03-08 18:18:13,730 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2025-03-08 18:18:13,730 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2025-03-08 18:18:13,730 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2025-03-08 18:18:13,730 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2025-03-08 18:18:13,730 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2025-03-08 18:18:13,730 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-03-08 18:18:13,730 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-03-08 18:18:13,730 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-03-08 18:18:13,730 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-03-08 18:18:13,730 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-03-08 18:18:13,730 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-03-08 18:18:13,732 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2025-03-08 18:18:13,732 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2025-03-08 18:18:13,732 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2025-03-08 18:18:13,732 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_eq [2025-03-08 18:18:13,732 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_eq [2025-03-08 18:18:13,732 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2025-03-08 18:18:13,732 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2025-03-08 18:18:13,732 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2025-03-08 18:18:13,732 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2025-03-08 18:18:13,732 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2025-03-08 18:18:13,732 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2025-03-08 18:18:13,732 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2025-03-08 18:18:13,732 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2025-03-08 18:18:13,732 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2025-03-08 18:18:13,732 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2025-03-08 18:18:13,732 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-03-08 18:18:13,732 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-03-08 18:18:13,732 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-03-08 18:18:13,732 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-03-08 18:18:13,732 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2025-03-08 18:18:13,732 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2025-03-08 18:18:13,732 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-08 18:18:13,732 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-03-08 18:18:13,732 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-03-08 18:18:13,732 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-03-08 18:18:13,732 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-03-08 18:18:13,732 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2025-03-08 18:18:13,945 INFO L256 CfgBuilder]: Building ICFG [2025-03-08 18:18:13,947 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-08 18:18:13,977 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L6874: havoc #t~malloc557.base, #t~malloc557.offset; [2025-03-08 18:18:13,998 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L6244: havoc #t~mem472;havoc #t~short473;havoc #t~mem474;havoc #t~mem475;havoc #t~short476; [2025-03-08 18:18:14,000 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L266: havoc #t~nondet9; [2025-03-08 18:18:14,018 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L7671: havoc #t~nondet817; [2025-03-08 18:18:14,068 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L7329: havoc #t~mem678;havoc #t~mem679;havoc #t~short680;havoc #t~mem681.base, #t~mem681.offset;havoc #t~short682;havoc #t~mem683;havoc #t~mem684;havoc #t~mem685;havoc #t~short686;havoc #t~mem687;havoc #t~mem688.base, #t~mem688.offset;havoc #t~short689;havoc #t~short690;havoc #t~short691;havoc #t~short692; [2025-03-08 18:18:14,078 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L261: havoc #t~nondet4; [2025-03-08 18:18:14,100 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L6791: havoc #t~ret543#1.base, #t~ret543#1.offset; [2025-03-08 18:18:20,958 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L6588: havoc aws_byte_buf_is_bounded_#t~mem477#1; [2025-03-08 18:18:20,958 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L9374: havoc aws_string_eq_byte_buf_#t~mem1318#1;havoc aws_string_eq_byte_buf_#t~mem1319#1.base, aws_string_eq_byte_buf_#t~mem1319#1.offset;havoc aws_string_eq_byte_buf_#t~mem1320#1;havoc aws_string_eq_byte_buf_#t~ret1321#1; [2025-03-08 18:18:20,983 INFO L? ?]: Removed 108 outVars from TransFormulas that were not future-live. [2025-03-08 18:18:20,983 INFO L307 CfgBuilder]: Performing block encoding [2025-03-08 18:18:20,991 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-08 18:18:20,992 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-08 18:18:20,992 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 06:18:20 BoogieIcfgContainer [2025-03-08 18:18:20,992 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-08 18:18:20,994 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-08 18:18:20,994 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-08 18:18:20,997 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-08 18:18:20,997 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.03 06:18:11" (1/3) ... [2025-03-08 18:18:20,998 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d948a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 06:18:20, skipping insertion in model container [2025-03-08 18:18:20,998 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:18:13" (2/3) ... [2025-03-08 18:18:20,999 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d948a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 06:18:20, skipping insertion in model container [2025-03-08 18:18:20,999 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 06:18:20" (3/3) ... [2025-03-08 18:18:21,000 INFO L128 eAbstractionObserver]: Analyzing ICFG aws_string_eq_byte_buf_harness_negated.i [2025-03-08 18:18:21,009 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-08 18:18:21,012 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG aws_string_eq_byte_buf_harness_negated.i that has 11 procedures, 130 locations, 1 initial locations, 0 loop locations, and 1 error locations. [2025-03-08 18:18:21,057 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-08 18:18:21,066 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;@6010f92b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-08 18:18:21,067 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-03-08 18:18:21,070 INFO L276 IsEmpty]: Start isEmpty. Operand has 130 states, 87 states have (on average 1.264367816091954) internal successors, (110), 88 states have internal predecessors, (110), 31 states have call successors, (31), 10 states have call predecessors, (31), 10 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2025-03-08 18:18:21,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2025-03-08 18:18:21,078 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 18:18:21,078 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 18:18:21,079 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 18:18:21,082 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 18:18:21,083 INFO L85 PathProgramCache]: Analyzing trace with hash -1372606289, now seen corresponding path program 1 times [2025-03-08 18:18:21,088 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 18:18:21,088 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1427154998] [2025-03-08 18:18:21,088 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 18:18:21,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 18:19:28,717 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 71 statements into 1 equivalence classes. [2025-03-08 18:19:29,275 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 71 of 71 statements. [2025-03-08 18:19:29,275 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 18:19:29,275 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 18:19:29,918 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2025-03-08 18:19:29,919 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 18:19:29,919 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1427154998] [2025-03-08 18:19:29,919 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1427154998] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 18:19:29,920 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [474150304] [2025-03-08 18:19:29,920 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 18:19:29,921 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 18:19:29,921 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 18:19:29,923 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-08 18:19:29,924 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process