./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 798a7b37 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-?-798a7b3-m [2025-03-04 02:45:10,956 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-04 02:45:11,014 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2025-03-04 02:45:11,018 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-04 02:45:11,018 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-04 02:45:11,034 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-04 02:45:11,035 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-04 02:45:11,035 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-04 02:45:11,035 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-04 02:45:11,035 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-04 02:45:11,035 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-04 02:45:11,035 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-04 02:45:11,035 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-04 02:45:11,036 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-04 02:45:11,036 INFO L153 SettingsManager]: * Use SBE=true [2025-03-04 02:45:11,036 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-04 02:45:11,036 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-04 02:45:11,036 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-04 02:45:11,036 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-04 02:45:11,036 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-04 02:45:11,036 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-04 02:45:11,036 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-04 02:45:11,036 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-04 02:45:11,036 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-04 02:45:11,037 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-04 02:45:11,037 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-04 02:45:11,037 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-04 02:45:11,037 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-04 02:45:11,037 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-04 02:45:11,037 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 02:45:11,037 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-04 02:45:11,037 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-04 02:45:11,037 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-04 02:45:11,037 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-04 02:45:11,037 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-04 02:45:11,037 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-04 02:45:11,037 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-04 02:45:11,037 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-04 02:45:11,037 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-04 02:45:11,037 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-04 02:45:11,037 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 [2025-03-04 02:45:11,270 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-04 02:45:11,278 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-04 02:45:11,280 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-04 02:45:11,282 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-04 02:45:11,282 INFO L274 PluginConnector]: CDTParser initialized [2025-03-04 02:45:11,283 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_byte_cursor_compare_lexical_harness.i [2025-03-04 02:45:12,437 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/792b51ecf/7a93411b2e224cb283ce1b3c8baa58c5/FLAG7c10a1814 [2025-03-04 02:45:12,945 INFO L384 CDTParser]: Found 1 translation units. [2025-03-04 02:45:12,945 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_byte_cursor_compare_lexical_harness.i [2025-03-04 02:45:12,981 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/792b51ecf/7a93411b2e224cb283ce1b3c8baa58c5/FLAG7c10a1814 [2025-03-04 02:45:13,020 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/792b51ecf/7a93411b2e224cb283ce1b3c8baa58c5 [2025-03-04 02:45:13,023 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-04 02:45:13,026 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-04 02:45:13,027 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-04 02:45:13,027 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-04 02:45:13,030 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-04 02:45:13,031 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 02:45:13" (1/1) ... [2025-03-04 02:45:13,033 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@55b2140a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:45:13, skipping insertion in model container [2025-03-04 02:45:13,033 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 02:45:13" (1/1) ... [2025-03-04 02:45:13,101 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-04 02:45:13,294 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] [2025-03-04 02:45:13,301 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] [2025-03-04 02:45:13,895 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:45:13,896 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:45:13,896 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:45:13,896 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:45:13,897 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:45:13,905 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:45:13,906 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:45:13,907 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:45:13,907 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:45:14,328 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:45:14,328 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:45:14,376 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 02:45:14,451 INFO L200 MainTranslator]: Completed pre-run [2025-03-04 02:45:14,466 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] [2025-03-04 02:45:14,467 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] [2025-03-04 02:45:14,501 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:45:14,502 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:45:14,502 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:45:14,503 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:45:14,503 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:45:14,512 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:45:14,513 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:45:14,517 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:45:14,517 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:45:14,617 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : "+r"(index)); [8277] [2025-03-04 02:45:14,618 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:45:14,618 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:45:14,628 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [8763-8774] [2025-03-04 02:45:14,642 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 02:45:14,834 INFO L204 MainTranslator]: Completed translation [2025-03-04 02:45:14,835 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:45:14 WrapperNode [2025-03-04 02:45:14,835 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-04 02:45:14,836 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-04 02:45:14,836 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-04 02:45:14,836 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-04 02:45:14,840 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:45:14" (1/1) ... [2025-03-04 02:45:14,913 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:45:14" (1/1) ... [2025-03-04 02:45:14,983 INFO L138 Inliner]: procedures = 680, calls = 2654, calls flagged for inlining = 59, calls inlined = 6, statements flattened = 928 [2025-03-04 02:45:14,984 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-04 02:45:14,984 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-04 02:45:14,984 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-04 02:45:14,984 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-04 02:45:14,992 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:45:14" (1/1) ... [2025-03-04 02:45:14,992 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:45:14" (1/1) ... [2025-03-04 02:45:14,997 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:45:14" (1/1) ... [2025-03-04 02:45:15,057 INFO L175 MemorySlicer]: Split 558 memory accesses to 7 slices as follows [2, 257, 238, 6, 4, 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, 2, 0, 3, 0]. [2025-03-04 02:45:15,057 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:45:14" (1/1) ... [2025-03-04 02:45:15,058 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:45:14" (1/1) ... [2025-03-04 02:45:15,094 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:45:14" (1/1) ... [2025-03-04 02:45:15,097 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:45:14" (1/1) ... [2025-03-04 02:45:15,109 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:45:14" (1/1) ... [2025-03-04 02:45:15,114 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:45:14" (1/1) ... [2025-03-04 02:45:15,131 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-04 02:45:15,132 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-04 02:45:15,132 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-04 02:45:15,132 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-04 02:45:15,133 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:45:14" (1/1) ... [2025-03-04 02:45:15,137 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 02:45:15,146 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 02:45:15,162 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) [2025-03-04 02:45:15,167 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 [2025-03-04 02:45:15,184 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_cursor_is_valid [2025-03-04 02:45:15,184 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_cursor_is_valid [2025-03-04 02:45:15,184 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_cursor_compare_lexical [2025-03-04 02:45:15,184 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_cursor_compare_lexical [2025-03-04 02:45:15,184 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-03-04 02:45:15,184 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2025-03-04 02:45:15,184 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2025-03-04 02:45:15,184 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2025-03-04 02:45:15,184 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2025-03-04 02:45:15,184 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2025-03-04 02:45:15,184 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2025-03-04 02:45:15,184 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2025-03-04 02:45:15,184 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2025-03-04 02:45:15,184 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2025-03-04 02:45:15,185 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-03-04 02:45:15,185 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-03-04 02:45:15,185 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-03-04 02:45:15,185 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-03-04 02:45:15,185 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2025-03-04 02:45:15,185 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2025-03-04 02:45:15,185 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2025-03-04 02:45:15,185 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_cursor_is_bounded [2025-03-04 02:45:15,185 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_cursor_is_bounded [2025-03-04 02:45:15,185 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-03-04 02:45:15,185 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-03-04 02:45:15,185 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-03-04 02:45:15,185 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-04 02:45:15,185 INFO L130 BoogieDeclarations]: Found specification of procedure save_byte_from_array [2025-03-04 02:45:15,185 INFO L138 BoogieDeclarations]: Found implementation of procedure save_byte_from_array [2025-03-04 02:45:15,185 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-03-04 02:45:15,185 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-03-04 02:45:15,185 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-03-04 02:45:15,185 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2025-03-04 02:45:15,185 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2025-03-04 02:45:15,185 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2025-03-04 02:45:15,185 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2025-03-04 02:45:15,185 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-04 02:45:15,185 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-04 02:45:15,185 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2025-03-04 02:45:15,185 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2025-03-04 02:45:15,185 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2025-03-04 02:45:15,185 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2025-03-04 02:45:15,189 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2025-03-04 02:45:15,189 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2025-03-04 02:45:15,189 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2025-03-04 02:45:15,189 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2025-03-04 02:45:15,189 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2025-03-04 02:45:15,189 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2025-03-04 02:45:15,189 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2025-03-04 02:45:15,189 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-03-04 02:45:15,189 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-03-04 02:45:15,189 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-03-04 02:45:15,189 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-03-04 02:45:15,190 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-03-04 02:45:15,190 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-03-04 02:45:15,190 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2025-03-04 02:45:15,190 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2025-03-04 02:45:15,190 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2025-03-04 02:45:15,190 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2025-03-04 02:45:15,190 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2025-03-04 02:45:15,190 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2025-03-04 02:45:15,190 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2025-03-04 02:45:15,190 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2025-03-04 02:45:15,190 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2025-03-04 02:45:15,190 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2025-03-04 02:45:15,190 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2025-03-04 02:45:15,190 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2025-03-04 02:45:15,190 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2025-03-04 02:45:15,190 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-03-04 02:45:15,190 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-03-04 02:45:15,190 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-03-04 02:45:15,190 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-03-04 02:45:15,190 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2025-03-04 02:45:15,190 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2025-03-04 02:45:15,190 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2025-03-04 02:45:15,190 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_byte_cursor_has_allocated_buffer_member [2025-03-04 02:45:15,190 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_byte_cursor_has_allocated_buffer_member [2025-03-04 02:45:15,190 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-04 02:45:15,190 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-03-04 02:45:15,190 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-03-04 02:45:15,190 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-03-04 02:45:15,190 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-03-04 02:45:15,190 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2025-03-04 02:45:15,190 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2025-03-04 02:45:15,430 INFO L256 CfgBuilder]: Building ICFG [2025-03-04 02:45:15,433 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-04 02:45:15,466 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L6886: havoc #t~malloc557.base, #t~malloc557.offset; [2025-03-04 02:45:15,504 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L263: havoc nondet_size_t_#t~nondet6#1; [2025-03-04 02:45:15,525 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L266: havoc #t~nondet9; [2025-03-04 02:45:15,532 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L6669: havoc #t~mem509; [2025-03-04 02:45:15,545 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L261: havoc #t~nondet4; [2025-03-04 02:45:15,571 INFO L1325 $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; [2025-03-04 02:45:15,607 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L8144: havoc #t~mem1032#1; [2025-03-04 02:45:15,607 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L7333: havoc memcmp_safe_#t~nondet655#1; [2025-03-04 02:45:22,462 INFO L? ?]: Removed 95 outVars from TransFormulas that were not future-live. [2025-03-04 02:45:22,462 INFO L307 CfgBuilder]: Performing block encoding [2025-03-04 02:45:22,473 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-04 02:45:22,475 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-04 02:45:22,476 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 02:45:22 BoogieIcfgContainer [2025-03-04 02:45:22,476 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-04 02:45:22,478 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-04 02:45:22,479 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-04 02:45:22,482 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-04 02:45:22,482 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.03 02:45:13" (1/3) ... [2025-03-04 02:45:22,483 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@161e1805 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 02:45:22, skipping insertion in model container [2025-03-04 02:45:22,483 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:45:14" (2/3) ... [2025-03-04 02:45:22,484 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@161e1805 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 02:45:22, skipping insertion in model container [2025-03-04 02:45:22,484 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 02:45:22" (3/3) ... [2025-03-04 02:45:22,485 INFO L128 eAbstractionObserver]: Analyzing ICFG aws_byte_cursor_compare_lexical_harness.i [2025-03-04 02:45:22,496 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-04 02:45:22,498 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. [2025-03-04 02:45:22,532 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-04 02:45:22,543 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;@6bcce10c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-04 02:45:22,544 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-03-04 02:45:22,548 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) [2025-03-04 02:45:22,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2025-03-04 02:45:22,557 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 02:45:22,558 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] [2025-03-04 02:45:22,558 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-04 02:45:22,562 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 02:45:22,563 INFO L85 PathProgramCache]: Analyzing trace with hash 23982872, now seen corresponding path program 1 times [2025-03-04 02:45:22,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 02:45:22,569 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1433292399] [2025-03-04 02:45:22,569 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 02:45:22,569 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 02:46:29,532 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 120 statements into 1 equivalence classes. [2025-03-04 02:46:30,098 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 120 of 120 statements. [2025-03-04 02:46:30,099 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 02:46:30,099 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 02:46:30,732 INFO L134 CoverageAnalysis]: Checked inductivity of 181 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 165 trivial. 0 not checked. [2025-03-04 02:46:30,732 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 02:46:30,732 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1433292399] [2025-03-04 02:46:30,733 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1433292399] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 02:46:30,735 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [251630783] [2025-03-04 02:46:30,735 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 02:46:30,736 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 02:46:30,736 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 02:46:30,738 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) [2025-03-04 02:46:30,740 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process