./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_byte_cursor_compare_lexical_harness.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_byte_cursor_compare_lexical_harness.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash fa640d76b01d20471995032e33acbe8cd362fa74ac26bb02247b6be5b51a4b6c --- Real Ultimate output --- This is Ultimate 0.3.0-?-e2fb8be-m [2025-03-08 17:56:15,405 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-08 17:56:15,462 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2025-03-08 17:56:15,467 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-08 17:56:15,469 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-08 17:56:15,481 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-08 17:56:15,481 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-08 17:56:15,481 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-08 17:56:15,482 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-08 17:56:15,482 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-08 17:56:15,482 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-08 17:56:15,482 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-08 17:56:15,482 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-08 17:56:15,482 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-08 17:56:15,482 INFO L153 SettingsManager]: * Use SBE=true [2025-03-08 17:56:15,482 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-08 17:56:15,483 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-08 17:56:15,483 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-08 17:56:15,483 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-08 17:56:15,483 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-08 17:56:15,483 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-08 17:56:15,483 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-08 17:56:15,483 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-08 17:56:15,483 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-08 17:56:15,483 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-08 17:56:15,483 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-08 17:56:15,483 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-08 17:56:15,483 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-08 17:56:15,483 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-08 17:56:15,483 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 17:56:15,483 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-08 17:56:15,483 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-08 17:56:15,483 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-08 17:56:15,483 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-08 17:56:15,483 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-08 17:56:15,483 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-08 17:56:15,483 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-08 17:56:15,483 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-08 17:56:15,483 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-08 17:56:15,484 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-08 17:56:15,484 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fa640d76b01d20471995032e33acbe8cd362fa74ac26bb02247b6be5b51a4b6c [2025-03-08 17:56:15,707 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-08 17:56:15,715 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-08 17:56:15,717 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-08 17:56:15,718 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-08 17:56:15,718 INFO L274 PluginConnector]: CDTParser initialized [2025-03-08 17:56:15,719 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_byte_cursor_compare_lexical_harness.i [2025-03-08 17:56:16,842 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d873fa1f9/054df51115434d9e9a83ce33e35e52ed/FLAG314c6fe6b [2025-03-08 17:56:17,303 INFO L384 CDTParser]: Found 1 translation units. [2025-03-08 17:56:17,304 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_byte_cursor_compare_lexical_harness.i [2025-03-08 17:56:17,333 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d873fa1f9/054df51115434d9e9a83ce33e35e52ed/FLAG314c6fe6b [2025-03-08 17:56:17,399 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d873fa1f9/054df51115434d9e9a83ce33e35e52ed [2025-03-08 17:56:17,402 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-08 17:56:17,403 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-08 17:56:17,404 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-08 17:56:17,404 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-08 17:56:17,407 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-08 17:56:17,408 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 05:56:17" (1/1) ... [2025-03-08 17:56:17,408 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@73f4b70a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:56:17, skipping insertion in model container [2025-03-08 17:56:17,408 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 05:56:17" (1/1) ... [2025-03-08 17:56:17,479 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-08 17:56:17,684 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_byte_cursor_compare_lexical_harness.i[4505,4518] [2025-03-08 17:56:17,693 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_byte_cursor_compare_lexical_harness.i[4565,4578] [2025-03-08 17:56:18,147 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:56:18,148 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:56:18,148 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:56:18,149 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:56:18,149 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:56:18,157 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:56:18,157 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:56:18,158 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:56:18,158 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:56:18,521 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:56:18,522 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:56:18,574 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 17:56:18,608 INFO L200 MainTranslator]: Completed pre-run [2025-03-08 17:56:18,621 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_byte_cursor_compare_lexical_harness.i[4505,4518] [2025-03-08 17:56:18,621 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_byte_cursor_compare_lexical_harness.i[4565,4578] [2025-03-08 17:56:18,655 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:56:18,655 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:56:18,655 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:56:18,656 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:56:18,656 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:56:18,663 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:56:18,663 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:56:18,664 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:56:18,665 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:56:18,790 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : "+r"(index)); [8277] [2025-03-08 17:56:18,792 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:56:18,792 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:56:18,802 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [8763-8774] [2025-03-08 17:56:18,818 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 17:56:18,940 INFO L204 MainTranslator]: Completed translation [2025-03-08 17:56:18,940 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:56:18 WrapperNode [2025-03-08 17:56:18,940 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-08 17:56:18,941 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-08 17:56:18,941 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-08 17:56:18,941 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-08 17:56:18,945 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:56:18" (1/1) ... [2025-03-08 17:56:18,990 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:56:18" (1/1) ... [2025-03-08 17:56:19,040 INFO L138 Inliner]: procedures = 680, calls = 2654, calls flagged for inlining = 59, calls inlined = 6, statements flattened = 928 [2025-03-08 17:56:19,040 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-08 17:56:19,041 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-08 17:56:19,041 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-08 17:56:19,041 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-08 17:56:19,053 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:56:18" (1/1) ... [2025-03-08 17:56:19,053 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:56:18" (1/1) ... [2025-03-08 17:56:19,059 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:56:18" (1/1) ... [2025-03-08 17:56:19,116 INFO L175 MemorySlicer]: Split 558 memory accesses to 7 slices as follows [2, 257, 238, 4, 6, 46, 5]. 46 percent of accesses are in the largest equivalence class. The 17 initializations are split as follows [2, 0, 6, 0, 0, 4, 5]. The 494 writes are split as follows [0, 257, 232, 0, 2, 3, 0]. [2025-03-08 17:56:19,119 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:56:18" (1/1) ... [2025-03-08 17:56:19,119 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:56:18" (1/1) ... [2025-03-08 17:56:19,146 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:56:18" (1/1) ... [2025-03-08 17:56:19,150 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:56:18" (1/1) ... [2025-03-08 17:56:19,158 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:56:18" (1/1) ... [2025-03-08 17:56:19,160 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:56:18" (1/1) ... [2025-03-08 17:56:19,170 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-08 17:56:19,171 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-08 17:56:19,171 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-08 17:56:19,171 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-08 17:56:19,171 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:56:18" (1/1) ... [2025-03-08 17:56:19,177 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 17:56:19,186 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 17:56:19,198 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 17:56:19,200 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 17:56:19,215 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_cursor_is_valid [2025-03-08 17:56:19,216 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_cursor_is_valid [2025-03-08 17:56:19,216 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_cursor_compare_lexical [2025-03-08 17:56:19,216 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_cursor_compare_lexical [2025-03-08 17:56:19,216 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-03-08 17:56:19,217 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2025-03-08 17:56:19,217 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2025-03-08 17:56:19,217 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2025-03-08 17:56:19,217 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2025-03-08 17:56:19,217 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2025-03-08 17:56:19,217 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2025-03-08 17:56:19,217 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2025-03-08 17:56:19,218 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2025-03-08 17:56:19,218 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2025-03-08 17:56:19,218 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-03-08 17:56:19,218 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-03-08 17:56:19,218 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-03-08 17:56:19,218 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-03-08 17:56:19,218 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2025-03-08 17:56:19,218 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2025-03-08 17:56:19,218 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2025-03-08 17:56:19,218 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_cursor_is_bounded [2025-03-08 17:56:19,218 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_cursor_is_bounded [2025-03-08 17:56:19,218 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-03-08 17:56:19,218 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-03-08 17:56:19,218 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-03-08 17:56:19,219 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-08 17:56:19,219 INFO L130 BoogieDeclarations]: Found specification of procedure save_byte_from_array [2025-03-08 17:56:19,220 INFO L138 BoogieDeclarations]: Found implementation of procedure save_byte_from_array [2025-03-08 17:56:19,220 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-03-08 17:56:19,220 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-03-08 17:56:19,220 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-03-08 17:56:19,220 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2025-03-08 17:56:19,220 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2025-03-08 17:56:19,220 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2025-03-08 17:56:19,220 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2025-03-08 17:56:19,220 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-08 17:56:19,220 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-08 17:56:19,220 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2025-03-08 17:56:19,220 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2025-03-08 17:56:19,220 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2025-03-08 17:56:19,220 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2025-03-08 17:56:19,220 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2025-03-08 17:56:19,220 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2025-03-08 17:56:19,220 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2025-03-08 17:56:19,220 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2025-03-08 17:56:19,220 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2025-03-08 17:56:19,220 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2025-03-08 17:56:19,220 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2025-03-08 17:56:19,220 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-03-08 17:56:19,220 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-03-08 17:56:19,220 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-03-08 17:56:19,220 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-03-08 17:56:19,220 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-03-08 17:56:19,220 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-03-08 17:56:19,220 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2025-03-08 17:56:19,221 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2025-03-08 17:56:19,221 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2025-03-08 17:56:19,221 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2025-03-08 17:56:19,221 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2025-03-08 17:56:19,221 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2025-03-08 17:56:19,221 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2025-03-08 17:56:19,221 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2025-03-08 17:56:19,221 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2025-03-08 17:56:19,221 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2025-03-08 17:56:19,221 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2025-03-08 17:56:19,221 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2025-03-08 17:56:19,221 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2025-03-08 17:56:19,221 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-03-08 17:56:19,221 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-03-08 17:56:19,221 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-03-08 17:56:19,221 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-03-08 17:56:19,221 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2025-03-08 17:56:19,221 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2025-03-08 17:56:19,221 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2025-03-08 17:56:19,221 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_byte_cursor_has_allocated_buffer_member [2025-03-08 17:56:19,221 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_byte_cursor_has_allocated_buffer_member [2025-03-08 17:56:19,221 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-08 17:56:19,221 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-03-08 17:56:19,221 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-03-08 17:56:19,221 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-03-08 17:56:19,221 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-03-08 17:56:19,221 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2025-03-08 17:56:19,221 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2025-03-08 17:56:19,471 INFO L256 CfgBuilder]: Building ICFG [2025-03-08 17:56:19,473 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-08 17:56:19,502 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L6886: havoc #t~malloc557.base, #t~malloc557.offset; [2025-03-08 17:56:19,521 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L263: havoc nondet_size_t_#t~nondet6#1; [2025-03-08 17:56:19,541 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L266: havoc #t~nondet9; [2025-03-08 17:56:19,548 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L6669: havoc #t~mem509; [2025-03-08 17:56:19,559 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L261: havoc #t~nondet4; [2025-03-08 17:56:19,591 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L7395: havoc #t~mem694;havoc #t~mem695;havoc #t~mem696.base, #t~mem696.offset;havoc #t~short697;havoc #t~mem698;havoc #t~mem699.base, #t~mem699.offset;havoc #t~short700;havoc #t~short701;havoc #t~short702;havoc #t~short703; [2025-03-08 17:56:19,639 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L8144: havoc #t~mem1032#1; [2025-03-08 17:56:19,640 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L7333: havoc memcmp_safe_#t~nondet655#1; [2025-03-08 17:56:26,331 INFO L? ?]: Removed 95 outVars from TransFormulas that were not future-live. [2025-03-08 17:56:26,331 INFO L307 CfgBuilder]: Performing block encoding [2025-03-08 17:56:26,338 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-08 17:56:26,339 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-08 17:56:26,339 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 05:56:26 BoogieIcfgContainer [2025-03-08 17:56:26,339 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-08 17:56:26,341 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-08 17:56:26,341 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-08 17:56:26,344 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-08 17:56:26,344 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.03 05:56:17" (1/3) ... [2025-03-08 17:56:26,344 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72a8ba9c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 05:56:26, skipping insertion in model container [2025-03-08 17:56:26,344 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:56:18" (2/3) ... [2025-03-08 17:56:26,344 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72a8ba9c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 05:56:26, skipping insertion in model container [2025-03-08 17:56:26,344 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 05:56:26" (3/3) ... [2025-03-08 17:56:26,345 INFO L128 eAbstractionObserver]: Analyzing ICFG aws_byte_cursor_compare_lexical_harness.i [2025-03-08 17:56:26,354 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-08 17:56:26,355 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG aws_byte_cursor_compare_lexical_harness.i that has 12 procedures, 150 locations, 1 initial locations, 0 loop locations, and 1 error locations. [2025-03-08 17:56:26,396 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-08 17:56:26,405 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;@30b22268, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-08 17:56:26,405 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-03-08 17:56:26,408 INFO L276 IsEmpty]: Start isEmpty. Operand has 150 states, 91 states have (on average 1.2197802197802199) internal successors, (111), 92 states have internal predecessors, (111), 46 states have call successors, (46), 11 states have call predecessors, (46), 11 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2025-03-08 17:56:26,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2025-03-08 17:56:26,417 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 17:56:26,418 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 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, 1] [2025-03-08 17:56:26,418 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 17:56:26,423 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 17:56:26,423 INFO L85 PathProgramCache]: Analyzing trace with hash 23982872, now seen corresponding path program 1 times [2025-03-08 17:56:26,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 17:56:26,430 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [719566133] [2025-03-08 17:56:26,430 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 17:56:26,431 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 17:57:32,102 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 120 statements into 1 equivalence classes. [2025-03-08 17:57:32,601 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 120 of 120 statements. [2025-03-08 17:57:32,601 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 17:57:32,601 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 17:57:33,283 INFO L134 CoverageAnalysis]: Checked inductivity of 181 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 165 trivial. 0 not checked. [2025-03-08 17:57:33,284 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 17:57:33,284 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [719566133] [2025-03-08 17:57:33,285 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [719566133] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 17:57:33,287 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1323362511] [2025-03-08 17:57:33,287 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 17:57:33,288 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 17:57:33,288 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 17:57:33,290 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 17:57:33,291 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process