./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_byte_buf_eq_ignore_case_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8fc3dc66 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_buf_eq_ignore_case_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 378441a9bcec2a4eb6d1dae870bed526bd742843c0fa114d0ed9d4e2e4a551a9 --- Real Ultimate output --- This is Ultimate 0.3.0-?-8fc3dc6-m [2025-03-17 06:58:07,234 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-17 06:58:07,293 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2025-03-17 06:58:07,300 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-17 06:58:07,301 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-17 06:58:07,322 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-17 06:58:07,323 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-17 06:58:07,323 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-17 06:58:07,324 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-17 06:58:07,324 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-17 06:58:07,324 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-17 06:58:07,325 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-17 06:58:07,325 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-17 06:58:07,325 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-17 06:58:07,325 INFO L153 SettingsManager]: * Use SBE=true [2025-03-17 06:58:07,326 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-17 06:58:07,326 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-17 06:58:07,326 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-17 06:58:07,326 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-17 06:58:07,327 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-17 06:58:07,327 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-17 06:58:07,327 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-17 06:58:07,327 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-17 06:58:07,327 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-17 06:58:07,327 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-17 06:58:07,327 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-17 06:58:07,327 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-17 06:58:07,327 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-17 06:58:07,327 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-17 06:58:07,327 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-17 06:58:07,327 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-17 06:58:07,327 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-17 06:58:07,327 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-17 06:58:07,327 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-17 06:58:07,327 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-17 06:58:07,328 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-17 06:58:07,328 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-17 06:58:07,328 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-17 06:58:07,328 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-17 06:58:07,328 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-17 06:58:07,328 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 -> 378441a9bcec2a4eb6d1dae870bed526bd742843c0fa114d0ed9d4e2e4a551a9 [2025-03-17 06:58:07,582 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-17 06:58:07,589 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-17 06:58:07,591 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-17 06:58:07,591 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-17 06:58:07,592 INFO L274 PluginConnector]: CDTParser initialized [2025-03-17 06:58:07,592 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_byte_buf_eq_ignore_case_harness.i [2025-03-17 06:58:08,742 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9cd1c180a/6138e31f94174175bbd1f3c96a9c6319/FLAG554920f97 [2025-03-17 06:58:09,154 INFO L384 CDTParser]: Found 1 translation units. [2025-03-17 06:58:09,156 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_byte_buf_eq_ignore_case_harness.i [2025-03-17 06:58:09,197 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9cd1c180a/6138e31f94174175bbd1f3c96a9c6319/FLAG554920f97 [2025-03-17 06:58:09,213 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9cd1c180a/6138e31f94174175bbd1f3c96a9c6319 [2025-03-17 06:58:09,215 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-17 06:58:09,216 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-17 06:58:09,217 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-17 06:58:09,217 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-17 06:58:09,221 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-17 06:58:09,222 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 06:58:09" (1/1) ... [2025-03-17 06:58:09,224 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@44f00836 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:58:09, skipping insertion in model container [2025-03-17 06:58:09,224 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 06:58:09" (1/1) ... [2025-03-17 06:58:09,296 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-17 06:58:09,478 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_buf_eq_ignore_case_harness.i[4501,4514] [2025-03-17 06:58:09,487 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_buf_eq_ignore_case_harness.i[4561,4574] [2025-03-17 06:58:09,935 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 06:58:09,936 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 06:58:09,936 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 06:58:09,937 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 06:58:09,937 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 06:58:09,948 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 06:58:09,949 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 06:58:09,950 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 06:58:09,950 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 06:58:10,345 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 06:58:10,346 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 06:58:10,400 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 06:58:10,462 INFO L200 MainTranslator]: Completed pre-run [2025-03-17 06:58:10,477 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_buf_eq_ignore_case_harness.i[4501,4514] [2025-03-17 06:58:10,477 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_buf_eq_ignore_case_harness.i[4561,4574] [2025-03-17 06:58:10,512 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 06:58:10,512 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 06:58:10,513 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 06:58:10,513 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 06:58:10,513 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 06:58:10,519 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 06:58:10,521 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 06:58:10,522 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 06:58:10,522 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 06:58:10,608 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : "+r"(index)); [8277] [2025-03-17 06:58:10,610 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 06:58:10,610 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 06:58:10,627 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [8763-8774] [2025-03-17 06:58:10,641 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 06:58:10,821 INFO L204 MainTranslator]: Completed translation [2025-03-17 06:58:10,822 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:58:10 WrapperNode [2025-03-17 06:58:10,822 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-17 06:58:10,823 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-17 06:58:10,823 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-17 06:58:10,823 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-17 06:58:10,828 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:58:10" (1/1) ... [2025-03-17 06:58:10,884 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:58:10" (1/1) ... [2025-03-17 06:58:10,945 INFO L138 Inliner]: procedures = 680, calls = 2663, calls flagged for inlining = 59, calls inlined = 5, statements flattened = 876 [2025-03-17 06:58:10,949 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-17 06:58:10,949 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-17 06:58:10,949 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-17 06:58:10,949 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-17 06:58:10,958 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:58:10" (1/1) ... [2025-03-17 06:58:10,958 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:58:10" (1/1) ... [2025-03-17 06:58:10,963 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:58:10" (1/1) ... [2025-03-17 06:58:11,024 INFO L175 MemorySlicer]: Split 576 memory accesses to 6 slices as follows [2, 9, 259, 238, 62, 6]. 45 percent of accesses are in the largest equivalence class. The 29 initializations are split as follows [2, 5, 0, 6, 16, 0]. The 497 writes are split as follows [0, 0, 257, 232, 6, 2]. [2025-03-17 06:58:11,024 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:58:10" (1/1) ... [2025-03-17 06:58:11,024 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:58:10" (1/1) ... [2025-03-17 06:58:11,049 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:58:10" (1/1) ... [2025-03-17 06:58:11,051 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:58:10" (1/1) ... [2025-03-17 06:58:11,055 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:58:10" (1/1) ... [2025-03-17 06:58:11,057 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:58:10" (1/1) ... [2025-03-17 06:58:11,063 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-17 06:58:11,064 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-17 06:58:11,064 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-17 06:58:11,064 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-17 06:58:11,064 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:58:10" (1/1) ... [2025-03-17 06:58:11,068 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-17 06:58:11,078 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 06:58:11,094 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) [2025-03-17 06:58:11,098 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 [2025-03-17 06:58:11,110 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_is_valid [2025-03-17 06:58:11,111 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_is_valid [2025-03-17 06:58:11,111 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_eq_ignore_case [2025-03-17 06:58:11,111 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_eq_ignore_case [2025-03-17 06:58:11,111 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-03-17 06:58:11,112 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2025-03-17 06:58:11,112 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2025-03-17 06:58:11,112 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2025-03-17 06:58:11,112 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2025-03-17 06:58:11,112 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2025-03-17 06:58:11,112 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2025-03-17 06:58:11,112 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2025-03-17 06:58:11,112 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2025-03-17 06:58:11,112 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-03-17 06:58:11,112 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-03-17 06:58:11,112 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-03-17 06:58:11,112 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-03-17 06:58:11,112 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2025-03-17 06:58:11,113 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2025-03-17 06:58:11,113 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-03-17 06:58:11,113 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-03-17 06:58:11,113 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-03-17 06:58:11,113 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-17 06:58:11,113 INFO L130 BoogieDeclarations]: Found specification of procedure save_byte_from_array [2025-03-17 06:58:11,113 INFO L138 BoogieDeclarations]: Found implementation of procedure save_byte_from_array [2025-03-17 06:58:11,113 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-03-17 06:58:11,113 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-03-17 06:58:11,113 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-03-17 06:58:11,113 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2025-03-17 06:58:11,113 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2025-03-17 06:58:11,113 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2025-03-17 06:58:11,113 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_byte_buf_has_allocated_buffer_member [2025-03-17 06:58:11,113 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_byte_buf_has_allocated_buffer_member [2025-03-17 06:58:11,113 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-17 06:58:11,113 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-17 06:58:11,113 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2025-03-17 06:58:11,113 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2025-03-17 06:58:11,113 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2025-03-17 06:58:11,113 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2025-03-17 06:58:11,113 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2025-03-17 06:58:11,113 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2025-03-17 06:58:11,113 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2025-03-17 06:58:11,113 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2025-03-17 06:58:11,113 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2025-03-17 06:58:11,113 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2025-03-17 06:58:11,114 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-03-17 06:58:11,114 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-03-17 06:58:11,114 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-03-17 06:58:11,115 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-03-17 06:58:11,115 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-03-17 06:58:11,115 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-03-17 06:58:11,115 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2025-03-17 06:58:11,115 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2025-03-17 06:58:11,115 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2025-03-17 06:58:11,116 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2025-03-17 06:58:11,116 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2025-03-17 06:58:11,116 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2025-03-17 06:58:11,116 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2025-03-17 06:58:11,116 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2025-03-17 06:58:11,116 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2025-03-17 06:58:11,116 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2025-03-17 06:58:11,116 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2025-03-17 06:58:11,116 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_is_bounded [2025-03-17 06:58:11,116 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_is_bounded [2025-03-17 06:58:11,116 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-03-17 06:58:11,116 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-03-17 06:58:11,117 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-03-17 06:58:11,117 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-03-17 06:58:11,117 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2025-03-17 06:58:11,117 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2025-03-17 06:58:11,117 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_buf_equivalence [2025-03-17 06:58:11,117 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_buf_equivalence [2025-03-17 06:58:11,117 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-17 06:58:11,117 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-03-17 06:58:11,117 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-03-17 06:58:11,117 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-03-17 06:58:11,117 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-03-17 06:58:11,117 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2025-03-17 06:58:11,371 INFO L256 CfgBuilder]: Building ICFG [2025-03-17 06:58:11,372 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-17 06:58:11,454 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L6886: havoc #t~malloc557.base, #t~malloc557.offset; [2025-03-17 06:58:11,495 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L263: havoc nondet_size_t_#t~nondet6#1; [2025-03-17 06:58:11,562 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L7385: havoc #t~mem679;havoc #t~mem680;havoc #t~short681;havoc #t~mem682.base, #t~mem682.offset;havoc #t~short683;havoc #t~mem684;havoc #t~mem685;havoc #t~mem686;havoc #t~short687;havoc #t~mem688;havoc #t~mem689.base, #t~mem689.offset;havoc #t~short690;havoc #t~short691;havoc #t~short692;havoc #t~short693; [2025-03-17 06:58:11,577 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L261: havoc #t~nondet4; [2025-03-17 06:58:11,586 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L6600: havoc #t~mem477; [2025-03-17 06:58:18,635 INFO L? ?]: Removed 78 outVars from TransFormulas that were not future-live. [2025-03-17 06:58:18,635 INFO L307 CfgBuilder]: Performing block encoding [2025-03-17 06:58:18,646 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-17 06:58:18,647 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-17 06:58:18,647 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 06:58:18 BoogieIcfgContainer [2025-03-17 06:58:18,647 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-17 06:58:18,649 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-17 06:58:18,649 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-17 06:58:18,653 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-17 06:58:18,653 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.03 06:58:09" (1/3) ... [2025-03-17 06:58:18,653 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d0e88ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 06:58:18, skipping insertion in model container [2025-03-17 06:58:18,654 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:58:10" (2/3) ... [2025-03-17 06:58:18,654 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d0e88ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 06:58:18, skipping insertion in model container [2025-03-17 06:58:18,654 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 06:58:18" (3/3) ... [2025-03-17 06:58:18,655 INFO L128 eAbstractionObserver]: Analyzing ICFG aws_byte_buf_eq_ignore_case_harness.i [2025-03-17 06:58:18,666 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-17 06:58:18,667 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG aws_byte_buf_eq_ignore_case_harness.i that has 13 procedures, 137 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-03-17 06:58:18,706 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-17 06:58:18,715 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;@270ec897, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-17 06:58:18,717 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-03-17 06:58:18,720 INFO L276 IsEmpty]: Start isEmpty. Operand has 137 states, 81 states have (on average 1.2469135802469136) internal successors, (101), 82 states have internal predecessors, (101), 42 states have call successors, (42), 12 states have call predecessors, (42), 12 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2025-03-17 06:58:18,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2025-03-17 06:58:18,728 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 06:58:18,729 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 4, 4, 4, 4, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 06:58:18,729 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-17 06:58:18,732 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 06:58:18,732 INFO L85 PathProgramCache]: Analyzing trace with hash 70610846, now seen corresponding path program 1 times [2025-03-17 06:58:18,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 06:58:18,738 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [149171202] [2025-03-17 06:58:18,738 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 06:58:18,738 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 06:59:28,148 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 112 statements into 1 equivalence classes. [2025-03-17 06:59:28,659 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 112 of 112 statements. [2025-03-17 06:59:28,660 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 06:59:28,660 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 06:59:29,448 INFO L134 CoverageAnalysis]: Checked inductivity of 121 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2025-03-17 06:59:29,448 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 06:59:29,449 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [149171202] [2025-03-17 06:59:29,449 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [149171202] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 06:59:29,450 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1101517926] [2025-03-17 06:59:29,450 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 06:59:29,451 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 06:59:29,451 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 06:59:29,453 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) [2025-03-17 06:59:29,455 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process