./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_byte_buf_eq_harness_negated.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_harness_negated.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 97f1929f60deed797b33f238413f59b0edc96867527757b3538e00bc90721005 --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-09 17:01:05,443 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-09 17:01:05,503 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2025-01-09 17:01:05,510 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-09 17:01:05,510 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-09 17:01:05,527 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-09 17:01:05,529 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-09 17:01:05,529 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-09 17:01:05,529 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-01-09 17:01:05,529 INFO L153 SettingsManager]: * Use memory slicer=true [2025-01-09 17:01:05,530 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-09 17:01:05,530 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-09 17:01:05,530 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-09 17:01:05,530 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-09 17:01:05,530 INFO L153 SettingsManager]: * Use SBE=true [2025-01-09 17:01:05,530 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-09 17:01:05,531 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-09 17:01:05,531 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-09 17:01:05,531 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-09 17:01:05,531 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-09 17:01:05,531 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-09 17:01:05,531 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-09 17:01:05,531 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-09 17:01:05,531 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-09 17:01:05,531 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-09 17:01:05,531 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-09 17:01:05,531 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 17:01:05,531 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 17:01:05,532 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 17:01:05,532 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 17:01:05,532 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-09 17:01:05,532 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 17:01:05,532 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 17:01:05,532 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 17:01:05,532 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 17:01:05,532 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-09 17:01:05,532 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-09 17:01:05,532 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-09 17:01:05,532 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-09 17:01:05,533 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-09 17:01:05,533 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-01-09 17:01:05,533 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-09 17:01:05,533 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-09 17:01:05,533 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-09 17:01:05,533 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-09 17:01:05,533 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 -> 97f1929f60deed797b33f238413f59b0edc96867527757b3538e00bc90721005 [2025-01-09 17:01:05,763 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-09 17:01:05,771 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-09 17:01:05,773 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-09 17:01:05,774 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-09 17:01:05,774 INFO L274 PluginConnector]: CDTParser initialized [2025-01-09 17:01:05,776 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_byte_buf_eq_harness_negated.i [2025-01-09 17:01:06,949 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/bcf838942/65a6ad7dcf704c9fba44ac71767a4d2e/FLAG113f2dbc3 [2025-01-09 17:01:07,424 INFO L384 CDTParser]: Found 1 translation units. [2025-01-09 17:01:07,425 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_byte_buf_eq_harness_negated.i [2025-01-09 17:01:07,455 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/bcf838942/65a6ad7dcf704c9fba44ac71767a4d2e/FLAG113f2dbc3 [2025-01-09 17:01:07,468 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/bcf838942/65a6ad7dcf704c9fba44ac71767a4d2e [2025-01-09 17:01:07,471 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-09 17:01:07,472 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-09 17:01:07,473 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-09 17:01:07,473 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-09 17:01:07,476 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-09 17:01:07,477 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 05:01:07" (1/1) ... [2025-01-09 17:01:07,477 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d6f2be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:01:07, skipping insertion in model container [2025-01-09 17:01:07,478 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 05:01:07" (1/1) ... [2025-01-09 17:01:07,545 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-09 17:01:07,718 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_harness_negated.i[4489,4502] [2025-01-09 17:01:07,723 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_harness_negated.i[4549,4562] [2025-01-09 17:01:08,136 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:01:08,140 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:01:08,140 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:01:08,141 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:01:08,141 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:01:08,157 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:01:08,160 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:01:08,164 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:01:08,164 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:01:08,617 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:01:08,619 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:01:08,677 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 17:01:08,751 INFO L200 MainTranslator]: Completed pre-run [2025-01-09 17:01:08,760 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_harness_negated.i[4489,4502] [2025-01-09 17:01:08,761 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_harness_negated.i[4549,4562] [2025-01-09 17:01:08,788 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:01:08,788 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:01:08,789 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:01:08,789 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:01:08,789 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:01:08,793 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:01:08,793 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:01:08,794 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:01:08,794 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:01:08,872 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : "+r"(index)); [8245] [2025-01-09 17:01:08,873 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:01:08,874 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:01:08,890 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [8731-8742] [2025-01-09 17:01:08,901 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 17:01:09,084 INFO L204 MainTranslator]: Completed translation [2025-01-09 17:01:09,087 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:01:09 WrapperNode [2025-01-09 17:01:09,087 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-09 17:01:09,088 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-09 17:01:09,088 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-09 17:01:09,088 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-09 17:01:09,092 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:01:09" (1/1) ... [2025-01-09 17:01:09,138 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:01:09" (1/1) ... [2025-01-09 17:01:09,187 INFO L138 Inliner]: procedures = 680, calls = 2668, calls flagged for inlining = 60, calls inlined = 6, statements flattened = 902 [2025-01-09 17:01:09,187 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-09 17:01:09,188 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-09 17:01:09,188 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-09 17:01:09,188 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-09 17:01:09,194 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:01:09" (1/1) ... [2025-01-09 17:01:09,195 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:01:09" (1/1) ... [2025-01-09 17:01:09,202 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:01:09" (1/1) ... [2025-01-09 17:01:09,268 INFO L175 MemorySlicer]: Split 578 memory accesses to 6 slices as follows [2, 257, 238, 6, 9, 66]. 44 percent of accesses are in the largest equivalence class. The 29 initializations are split as follows [2, 0, 6, 0, 5, 16]. The 497 writes are split as follows [0, 257, 232, 2, 0, 6]. [2025-01-09 17:01:09,272 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:01:09" (1/1) ... [2025-01-09 17:01:09,272 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:01:09" (1/1) ... [2025-01-09 17:01:09,299 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:01:09" (1/1) ... [2025-01-09 17:01:09,301 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:01:09" (1/1) ... [2025-01-09 17:01:09,303 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:01:09" (1/1) ... [2025-01-09 17:01:09,307 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:01:09" (1/1) ... [2025-01-09 17:01:09,309 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:01:09" (1/1) ... [2025-01-09 17:01:09,323 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-09 17:01:09,324 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-09 17:01:09,324 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-09 17:01:09,324 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-09 17:01:09,325 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:01:09" (1/1) ... [2025-01-09 17:01:09,331 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 17:01:09,345 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 17:01:09,366 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 17:01:09,370 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 17:01:09,395 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_is_valid [2025-01-09 17:01:09,395 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_is_valid [2025-01-09 17:01:09,395 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-01-09 17:01:09,395 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2025-01-09 17:01:09,395 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2025-01-09 17:01:09,395 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2025-01-09 17:01:09,395 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2025-01-09 17:01:09,395 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2025-01-09 17:01:09,396 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2025-01-09 17:01:09,396 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2025-01-09 17:01:09,396 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2025-01-09 17:01:09,396 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-01-09 17:01:09,396 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-01-09 17:01:09,396 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-01-09 17:01:09,396 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-01-09 17:01:09,396 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2025-01-09 17:01:09,396 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2025-01-09 17:01:09,396 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-01-09 17:01:09,396 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-01-09 17:01:09,396 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-01-09 17:01:09,396 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-09 17:01:09,396 INFO L130 BoogieDeclarations]: Found specification of procedure save_byte_from_array [2025-01-09 17:01:09,396 INFO L138 BoogieDeclarations]: Found implementation of procedure save_byte_from_array [2025-01-09 17:01:09,397 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-01-09 17:01:09,397 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-01-09 17:01:09,397 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-01-09 17:01:09,397 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2025-01-09 17:01:09,397 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2025-01-09 17:01:09,397 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2025-01-09 17:01:09,397 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_byte_buf_has_allocated_buffer_member [2025-01-09 17:01:09,397 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_byte_buf_has_allocated_buffer_member [2025-01-09 17:01:09,397 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-09 17:01:09,397 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-09 17:01:09,397 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2025-01-09 17:01:09,397 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2025-01-09 17:01:09,397 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2025-01-09 17:01:09,397 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2025-01-09 17:01:09,397 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2025-01-09 17:01:09,397 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2025-01-09 17:01:09,397 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2025-01-09 17:01:09,397 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2025-01-09 17:01:09,397 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2025-01-09 17:01:09,397 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2025-01-09 17:01:09,397 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-01-09 17:01:09,397 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-01-09 17:01:09,397 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-01-09 17:01:09,397 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-01-09 17:01:09,397 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-01-09 17:01:09,397 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-01-09 17:01:09,397 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2025-01-09 17:01:09,397 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2025-01-09 17:01:09,397 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2025-01-09 17:01:09,397 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_eq [2025-01-09 17:01:09,397 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_eq [2025-01-09 17:01:09,397 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2025-01-09 17:01:09,397 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2025-01-09 17:01:09,397 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2025-01-09 17:01:09,399 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2025-01-09 17:01:09,399 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2025-01-09 17:01:09,400 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2025-01-09 17:01:09,400 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2025-01-09 17:01:09,400 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2025-01-09 17:01:09,400 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2025-01-09 17:01:09,400 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2025-01-09 17:01:09,400 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_is_bounded [2025-01-09 17:01:09,400 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_is_bounded [2025-01-09 17:01:09,400 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-01-09 17:01:09,400 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-01-09 17:01:09,400 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-01-09 17:01:09,400 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-01-09 17:01:09,400 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2025-01-09 17:01:09,400 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2025-01-09 17:01:09,400 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_buf_equivalence [2025-01-09 17:01:09,400 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_buf_equivalence [2025-01-09 17:01:09,400 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-01-09 17:01:09,400 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-01-09 17:01:09,400 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-01-09 17:01:09,400 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-01-09 17:01:09,400 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-01-09 17:01:09,400 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2025-01-09 17:01:09,668 INFO L234 CfgBuilder]: Building ICFG [2025-01-09 17:01:09,677 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-09 17:01:16,937 INFO L? ?]: Removed 94 outVars from TransFormulas that were not future-live. [2025-01-09 17:01:16,938 INFO L283 CfgBuilder]: Performing block encoding [2025-01-09 17:01:16,945 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-09 17:01:16,945 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-01-09 17:01:16,946 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 05:01:16 BoogieIcfgContainer [2025-01-09 17:01:16,946 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-09 17:01:16,947 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-09 17:01:16,947 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-09 17:01:16,954 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-09 17:01:16,954 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.01 05:01:07" (1/3) ... [2025-01-09 17:01:16,955 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a887da3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 05:01:16, skipping insertion in model container [2025-01-09 17:01:16,955 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:01:09" (2/3) ... [2025-01-09 17:01:16,955 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a887da3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 05:01:16, skipping insertion in model container [2025-01-09 17:01:16,955 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 05:01:16" (3/3) ... [2025-01-09 17:01:16,956 INFO L128 eAbstractionObserver]: Analyzing ICFG aws_byte_buf_eq_harness_negated.i [2025-01-09 17:01:16,974 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-09 17:01:16,975 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG aws_byte_buf_eq_harness_negated.i that has 14 procedures, 153 locations, 1 initial locations, 0 loop locations, and 1 error locations. [2025-01-09 17:01:17,022 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-09 17:01:17,031 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;@17c1d8d7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-09 17:01:17,031 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-01-09 17:01:17,034 INFO L276 IsEmpty]: Start isEmpty. Operand has 153 states, 92 states have (on average 1.2282608695652173) internal successors, (113), 93 states have internal predecessors, (113), 46 states have call successors, (46), 13 states have call predecessors, (46), 13 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2025-01-09 17:01:17,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2025-01-09 17:01:17,048 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 17:01:17,049 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 17:01:17,049 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 17:01:17,053 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 17:01:17,054 INFO L85 PathProgramCache]: Analyzing trace with hash 379353637, now seen corresponding path program 1 times [2025-01-09 17:01:17,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 17:01:17,060 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1776616597] [2025-01-09 17:01:17,060 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 17:01:17,061 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 17:02:23,890 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 113 statements into 1 equivalence classes. [2025-01-09 17:02:24,349 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 113 of 113 statements. [2025-01-09 17:02:24,349 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 17:02:24,349 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 17:02:25,043 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 17:02:25,044 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 17:02:25,044 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1776616597] [2025-01-09 17:02:25,044 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1776616597] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 17:02:25,044 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [609455499] [2025-01-09 17:02:25,044 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 17:02:25,044 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 17:02:25,044 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 17:02:25,050 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 17:02:25,054 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