./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 551b0097 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/aws-c-common/aws_byte_buf_eq_ignore_case_harness.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 378441a9bcec2a4eb6d1dae870bed526bd742843c0fa114d0ed9d4e2e4a551a9 --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-09 17:01:09,515 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-09 17:01:09,552 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2025-01-09 17:01:09,556 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-09 17:01:09,556 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-09 17:01:09,568 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-09 17:01:09,569 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-09 17:01:09,569 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-09 17:01:09,569 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-01-09 17:01:09,569 INFO L153 SettingsManager]: * Use memory slicer=true [2025-01-09 17:01:09,569 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-09 17:01:09,569 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-09 17:01:09,570 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-09 17:01:09,570 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-09 17:01:09,570 INFO L153 SettingsManager]: * Use SBE=true [2025-01-09 17:01:09,570 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-09 17:01:09,570 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-09 17:01:09,570 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-09 17:01:09,570 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-09 17:01:09,570 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-09 17:01:09,570 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-09 17:01:09,570 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-09 17:01:09,570 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-09 17:01:09,571 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-09 17:01:09,571 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-09 17:01:09,571 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-09 17:01:09,571 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 17:01:09,571 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 17:01:09,571 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 17:01:09,571 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 17:01:09,571 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-09 17:01:09,571 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 17:01:09,571 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 17:01:09,571 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 17:01:09,571 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 17:01:09,571 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-09 17:01:09,571 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-09 17:01:09,571 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-09 17:01:09,571 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-09 17:01:09,571 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-09 17:01:09,572 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-01-09 17:01:09,572 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-09 17:01:09,572 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-09 17:01:09,572 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-09 17:01:09,572 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-09 17:01:09,572 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 378441a9bcec2a4eb6d1dae870bed526bd742843c0fa114d0ed9d4e2e4a551a9 [2025-01-09 17:01:09,771 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-09 17:01:09,788 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-09 17:01:09,790 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-09 17:01:09,790 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-09 17:01:09,794 INFO L274 PluginConnector]: CDTParser initialized [2025-01-09 17:01:09,795 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_byte_buf_eq_ignore_case_harness.i [2025-01-09 17:01:11,000 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/0d307cab9/e7ef6ef43bd440658348487c09571e8a/FLAGd18ca719e [2025-01-09 17:01:11,519 INFO L384 CDTParser]: Found 1 translation units. [2025-01-09 17:01:11,519 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_byte_buf_eq_ignore_case_harness.i [2025-01-09 17:01:11,538 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/0d307cab9/e7ef6ef43bd440658348487c09571e8a/FLAGd18ca719e [2025-01-09 17:01:11,588 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/0d307cab9/e7ef6ef43bd440658348487c09571e8a [2025-01-09 17:01:11,590 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-09 17:01:11,592 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-09 17:01:11,593 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-09 17:01:11,593 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-09 17:01:11,597 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-09 17:01:11,597 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 05:01:11" (1/1) ... [2025-01-09 17:01:11,598 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@646855e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:01:11, skipping insertion in model container [2025-01-09 17:01:11,598 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 05:01:11" (1/1) ... [2025-01-09 17:01:11,663 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-09 17:01:11,817 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_byte_buf_eq_ignore_case_harness.i[4501,4514] [2025-01-09 17:01:11,823 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_byte_buf_eq_ignore_case_harness.i[4561,4574] [2025-01-09 17:01:12,217 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:01:12,218 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:01:12,218 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:01:12,219 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:01:12,219 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:01:12,227 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:01:12,228 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:01:12,229 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:01:12,233 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:01:12,654 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:01:12,654 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:01:12,711 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 17:01:12,764 INFO L200 MainTranslator]: Completed pre-run [2025-01-09 17:01:12,775 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_byte_buf_eq_ignore_case_harness.i[4501,4514] [2025-01-09 17:01:12,780 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_byte_buf_eq_ignore_case_harness.i[4561,4574] [2025-01-09 17:01:12,816 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:01:12,816 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:01:12,818 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:01:12,818 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:01:12,819 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:01:12,823 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:01:12,824 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:01:12,825 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:01:12,825 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:01:12,952 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : "+r"(index)); [8277] [2025-01-09 17:01:12,954 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:01:12,954 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:01:12,965 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [8763-8774] [2025-01-09 17:01:12,978 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 17:01:13,149 INFO L204 MainTranslator]: Completed translation [2025-01-09 17:01:13,150 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:01:13 WrapperNode [2025-01-09 17:01:13,150 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-09 17:01:13,151 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-09 17:01:13,151 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-09 17:01:13,151 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-09 17:01:13,155 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:01:13" (1/1) ... [2025-01-09 17:01:13,221 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:01:13" (1/1) ... [2025-01-09 17:01:13,273 INFO L138 Inliner]: procedures = 680, calls = 2663, calls flagged for inlining = 59, calls inlined = 5, statements flattened = 876 [2025-01-09 17:01:13,273 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-09 17:01:13,274 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-09 17:01:13,274 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-09 17:01:13,274 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-09 17:01:13,280 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:01:13" (1/1) ... [2025-01-09 17:01:13,280 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:01:13" (1/1) ... [2025-01-09 17:01:13,287 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:01:13" (1/1) ... [2025-01-09 17:01:13,339 INFO L175 MemorySlicer]: Split 576 memory accesses to 6 slices as follows [2, 259, 9, 238, 6, 62]. 45 percent of accesses are in the largest equivalence class. The 29 initializations are split as follows [2, 0, 5, 6, 0, 16]. The 497 writes are split as follows [0, 257, 0, 232, 2, 6]. [2025-01-09 17:01:13,342 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:01:13" (1/1) ... [2025-01-09 17:01:13,343 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:01:13" (1/1) ... [2025-01-09 17:01:13,366 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:01:13" (1/1) ... [2025-01-09 17:01:13,368 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:01:13" (1/1) ... [2025-01-09 17:01:13,370 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:01:13" (1/1) ... [2025-01-09 17:01:13,374 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:01:13" (1/1) ... [2025-01-09 17:01:13,397 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:01:13" (1/1) ... [2025-01-09 17:01:13,411 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-09 17:01:13,416 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-09 17:01:13,416 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-09 17:01:13,416 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-09 17:01:13,417 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:01:13" (1/1) ... [2025-01-09 17:01:13,424 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 17:01:13,437 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 17:01:13,447 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-01-09 17:01:13,451 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-01-09 17:01:13,470 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_is_valid [2025-01-09 17:01:13,470 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_is_valid [2025-01-09 17:01:13,470 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_eq_ignore_case [2025-01-09 17:01:13,470 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_eq_ignore_case [2025-01-09 17:01:13,471 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-01-09 17:01:13,471 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2025-01-09 17:01:13,471 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2025-01-09 17:01:13,471 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2025-01-09 17:01:13,471 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2025-01-09 17:01:13,471 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2025-01-09 17:01:13,471 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2025-01-09 17:01:13,471 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2025-01-09 17:01:13,471 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2025-01-09 17:01:13,471 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-01-09 17:01:13,471 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-01-09 17:01:13,471 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-01-09 17:01:13,471 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-01-09 17:01:13,471 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2025-01-09 17:01:13,471 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2025-01-09 17:01:13,472 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-01-09 17:01:13,472 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-01-09 17:01:13,472 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-01-09 17:01:13,472 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-09 17:01:13,472 INFO L130 BoogieDeclarations]: Found specification of procedure save_byte_from_array [2025-01-09 17:01:13,472 INFO L138 BoogieDeclarations]: Found implementation of procedure save_byte_from_array [2025-01-09 17:01:13,472 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-01-09 17:01:13,472 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-01-09 17:01:13,472 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-01-09 17:01:13,472 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2025-01-09 17:01:13,474 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2025-01-09 17:01:13,474 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2025-01-09 17:01:13,474 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_byte_buf_has_allocated_buffer_member [2025-01-09 17:01:13,474 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_byte_buf_has_allocated_buffer_member [2025-01-09 17:01:13,474 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-09 17:01:13,474 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-09 17:01:13,474 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2025-01-09 17:01:13,474 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2025-01-09 17:01:13,474 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2025-01-09 17:01:13,474 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2025-01-09 17:01:13,474 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2025-01-09 17:01:13,474 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2025-01-09 17:01:13,474 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2025-01-09 17:01:13,474 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2025-01-09 17:01:13,475 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2025-01-09 17:01:13,475 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2025-01-09 17:01:13,475 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-01-09 17:01:13,475 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-01-09 17:01:13,475 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-01-09 17:01:13,475 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-01-09 17:01:13,475 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-01-09 17:01:13,475 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-01-09 17:01:13,475 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2025-01-09 17:01:13,475 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2025-01-09 17:01:13,475 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2025-01-09 17:01:13,475 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2025-01-09 17:01:13,475 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2025-01-09 17:01:13,475 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2025-01-09 17:01:13,475 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2025-01-09 17:01:13,475 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2025-01-09 17:01:13,476 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2025-01-09 17:01:13,476 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2025-01-09 17:01:13,476 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2025-01-09 17:01:13,476 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_is_bounded [2025-01-09 17:01:13,476 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_is_bounded [2025-01-09 17:01:13,476 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-01-09 17:01:13,476 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-01-09 17:01:13,477 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-01-09 17:01:13,477 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-01-09 17:01:13,478 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2025-01-09 17:01:13,478 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2025-01-09 17:01:13,478 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_buf_equivalence [2025-01-09 17:01:13,478 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_buf_equivalence [2025-01-09 17:01:13,478 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-01-09 17:01:13,478 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-01-09 17:01:13,478 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-01-09 17:01:13,478 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-01-09 17:01:13,478 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-01-09 17:01:13,478 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2025-01-09 17:01:13,687 INFO L234 CfgBuilder]: Building ICFG [2025-01-09 17:01:13,693 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-09 17:01:20,753 INFO L? ?]: Removed 79 outVars from TransFormulas that were not future-live. [2025-01-09 17:01:20,754 INFO L283 CfgBuilder]: Performing block encoding [2025-01-09 17:01:20,761 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-09 17:01:20,761 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-01-09 17:01:20,761 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 05:01:20 BoogieIcfgContainer [2025-01-09 17:01:20,761 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-09 17:01:20,763 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-09 17:01:20,763 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-09 17:01:20,766 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-09 17:01:20,766 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.01 05:01:11" (1/3) ... [2025-01-09 17:01:20,767 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d9afdc7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 05:01:20, skipping insertion in model container [2025-01-09 17:01:20,767 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:01:13" (2/3) ... [2025-01-09 17:01:20,767 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d9afdc7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 05:01:20, skipping insertion in model container [2025-01-09 17:01:20,767 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 05:01:20" (3/3) ... [2025-01-09 17:01:20,768 INFO L128 eAbstractionObserver]: Analyzing ICFG aws_byte_buf_eq_ignore_case_harness.i [2025-01-09 17:01:20,777 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-09 17:01:20,778 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG aws_byte_buf_eq_ignore_case_harness.i that has 13 procedures, 141 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-01-09 17:01:20,810 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-09 17:01:20,820 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;@72d26fc8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-09 17:01:20,821 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-01-09 17:01:20,824 INFO L276 IsEmpty]: Start isEmpty. Operand has 141 states, 85 states have (on average 1.2352941176470589) internal successors, (105), 86 states have internal predecessors, (105), 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) [2025-01-09 17:01:20,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2025-01-09 17:01:20,831 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 17:01:20,831 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, 1] [2025-01-09 17:01:20,832 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 17:01:20,835 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 17:01:20,835 INFO L85 PathProgramCache]: Analyzing trace with hash 1881725446, now seen corresponding path program 1 times [2025-01-09 17:01:20,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 17:01:20,840 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1836592087] [2025-01-09 17:01:20,840 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 17:01:20,841 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 17:02:38,727 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 113 statements into 1 equivalence classes. [2025-01-09 17:02:39,177 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 113 of 113 statements. [2025-01-09 17:02:39,178 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 17:02:39,178 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 17:02:39,797 INFO L134 CoverageAnalysis]: Checked inductivity of 121 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2025-01-09 17:02:39,798 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 17:02:39,798 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1836592087] [2025-01-09 17:02:39,798 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1836592087] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 17:02:39,798 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1990590799] [2025-01-09 17:02:39,798 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 17:02:39,799 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 17:02:39,799 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 17:02:39,803 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-09 17:02:39,805 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process