./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_byte_buf_eq_c_str_harness_negated.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e2fb8bed Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/aws-c-common/aws_byte_buf_eq_c_str_harness_negated.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 885bac69872c2b34c2b244d1618f4ab60115ba2f5fec2456cdf32ad6a7277fb1 --- Real Ultimate output --- This is Ultimate 0.3.0-?-e2fb8be-m [2025-03-08 17:50:01,205 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-08 17:50:01,278 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2025-03-08 17:50:01,285 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-08 17:50:01,286 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-08 17:50:01,303 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-08 17:50:01,303 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-08 17:50:01,303 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-08 17:50:01,305 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-08 17:50:01,305 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-08 17:50:01,305 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-08 17:50:01,305 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-08 17:50:01,306 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-08 17:50:01,306 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-08 17:50:01,306 INFO L153 SettingsManager]: * Use SBE=true [2025-03-08 17:50:01,306 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-08 17:50:01,306 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-08 17:50:01,306 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-08 17:50:01,306 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-08 17:50:01,306 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-08 17:50:01,306 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-08 17:50:01,306 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-08 17:50:01,306 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-08 17:50:01,306 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-08 17:50:01,306 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-08 17:50:01,306 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-08 17:50:01,306 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-08 17:50:01,306 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-08 17:50:01,306 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-08 17:50:01,307 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 17:50:01,307 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-08 17:50:01,307 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-08 17:50:01,307 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-08 17:50:01,307 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-08 17:50:01,307 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-08 17:50:01,307 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-08 17:50:01,307 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-08 17:50:01,307 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-08 17:50:01,307 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-08 17:50:01,307 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-08 17:50:01,307 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 -> 885bac69872c2b34c2b244d1618f4ab60115ba2f5fec2456cdf32ad6a7277fb1 [2025-03-08 17:50:01,514 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-08 17:50:01,519 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-08 17:50:01,522 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-08 17:50:01,522 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-08 17:50:01,523 INFO L274 PluginConnector]: CDTParser initialized [2025-03-08 17:50:01,523 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_byte_buf_eq_c_str_harness_negated.i [2025-03-08 17:50:03,269 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bb0f32b91/b4a1147215474919bf4edeb9c0872869/FLAG485f5b3be [2025-03-08 17:50:03,667 INFO L384 CDTParser]: Found 1 translation units. [2025-03-08 17:50:03,668 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_byte_buf_eq_c_str_harness_negated.i [2025-03-08 17:50:03,702 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bb0f32b91/b4a1147215474919bf4edeb9c0872869/FLAG485f5b3be [2025-03-08 17:50:03,716 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bb0f32b91/b4a1147215474919bf4edeb9c0872869 [2025-03-08 17:50:03,718 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-08 17:50:03,719 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-08 17:50:03,720 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-08 17:50:03,720 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-08 17:50:03,725 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-08 17:50:03,726 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 05:50:03" (1/1) ... [2025-03-08 17:50:03,726 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d876c05 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:50:03, skipping insertion in model container [2025-03-08 17:50:03,726 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 05:50:03" (1/1) ... [2025-03-08 17:50:03,788 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-08 17:50:03,992 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_c_str_harness_negated.i[4495,4508] [2025-03-08 17:50:04,001 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_c_str_harness_negated.i[4555,4568] [2025-03-08 17:50:04,535 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:50:04,537 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:50:04,537 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:50:04,537 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:50:04,538 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:50:04,546 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:50:04,548 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:50:04,549 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:50:04,549 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:50:04,922 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:50:04,925 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:50:04,981 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 17:50:05,031 INFO L200 MainTranslator]: Completed pre-run [2025-03-08 17:50:05,045 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_c_str_harness_negated.i[4495,4508] [2025-03-08 17:50:05,046 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_c_str_harness_negated.i[4555,4568] [2025-03-08 17:50:05,082 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:50:05,083 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:50:05,084 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:50:05,084 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:50:05,084 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:50:05,091 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:50:05,091 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:50:05,092 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:50:05,092 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:50:05,217 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : "+r"(index)); [8245] [2025-03-08 17:50:05,219 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:50:05,219 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:50:05,229 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [8731-8742] [2025-03-08 17:50:05,240 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 17:50:05,394 INFO L204 MainTranslator]: Completed translation [2025-03-08 17:50:05,395 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:50:05 WrapperNode [2025-03-08 17:50:05,395 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-08 17:50:05,396 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-08 17:50:05,396 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-08 17:50:05,396 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-08 17:50:05,400 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:50:05" (1/1) ... [2025-03-08 17:50:05,445 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:50:05" (1/1) ... [2025-03-08 17:50:05,499 INFO L138 Inliner]: procedures = 680, calls = 2633, calls flagged for inlining = 64, calls inlined = 10, statements flattened = 902 [2025-03-08 17:50:05,499 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-08 17:50:05,500 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-08 17:50:05,500 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-08 17:50:05,500 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-08 17:50:05,510 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:50:05" (1/1) ... [2025-03-08 17:50:05,511 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:50:05" (1/1) ... [2025-03-08 17:50:05,516 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:50:05" (1/1) ... [2025-03-08 17:50:05,559 INFO L175 MemorySlicer]: Split 556 memory accesses to 6 slices as follows [2, 257, 238, 6, 40, 13]. 46 percent of accesses are in the largest equivalence class. The 21 initializations are split as follows [2, 0, 6, 0, 8, 5]. The 493 writes are split as follows [0, 257, 232, 2, 2, 0]. [2025-03-08 17:50:05,559 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:50:05" (1/1) ... [2025-03-08 17:50:05,559 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:50:05" (1/1) ... [2025-03-08 17:50:05,603 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:50:05" (1/1) ... [2025-03-08 17:50:05,607 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:50:05" (1/1) ... [2025-03-08 17:50:05,616 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:50:05" (1/1) ... [2025-03-08 17:50:05,622 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:50:05" (1/1) ... [2025-03-08 17:50:05,631 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-08 17:50:05,632 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-08 17:50:05,632 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-08 17:50:05,632 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-08 17:50:05,633 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:50:05" (1/1) ... [2025-03-08 17:50:05,637 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 17:50:05,647 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 17:50:05,657 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-03-08 17:50:05,660 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-03-08 17:50:05,677 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_eq_c_str [2025-03-08 17:50:05,678 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_eq_c_str [2025-03-08 17:50:05,678 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_is_valid [2025-03-08 17:50:05,678 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_is_valid [2025-03-08 17:50:05,678 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-03-08 17:50:05,678 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2025-03-08 17:50:05,678 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2025-03-08 17:50:05,678 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2025-03-08 17:50:05,678 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2025-03-08 17:50:05,678 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2025-03-08 17:50:05,678 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2025-03-08 17:50:05,678 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2025-03-08 17:50:05,678 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2025-03-08 17:50:05,678 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-03-08 17:50:05,678 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-03-08 17:50:05,678 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-03-08 17:50:05,678 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-03-08 17:50:05,678 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2025-03-08 17:50:05,678 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2025-03-08 17:50:05,678 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-03-08 17:50:05,678 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-03-08 17:50:05,678 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-03-08 17:50:05,678 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-08 17:50:05,678 INFO L130 BoogieDeclarations]: Found specification of procedure save_byte_from_array [2025-03-08 17:50:05,678 INFO L138 BoogieDeclarations]: Found implementation of procedure save_byte_from_array [2025-03-08 17:50:05,678 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-03-08 17:50:05,678 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-03-08 17:50:05,678 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-03-08 17:50:05,678 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2025-03-08 17:50:05,679 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2025-03-08 17:50:05,679 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2025-03-08 17:50:05,679 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-08 17:50:05,679 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-08 17:50:05,679 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2025-03-08 17:50:05,679 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2025-03-08 17:50:05,680 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2025-03-08 17:50:05,680 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2025-03-08 17:50:05,680 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2025-03-08 17:50:05,680 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2025-03-08 17:50:05,680 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2025-03-08 17:50:05,681 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2025-03-08 17:50:05,681 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2025-03-08 17:50:05,681 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2025-03-08 17:50:05,681 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-03-08 17:50:05,681 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-03-08 17:50:05,681 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-03-08 17:50:05,682 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-03-08 17:50:05,682 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-03-08 17:50:05,682 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-03-08 17:50:05,682 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2025-03-08 17:50:05,682 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2025-03-08 17:50:05,682 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2025-03-08 17:50:05,682 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2025-03-08 17:50:05,682 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2025-03-08 17:50:05,682 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2025-03-08 17:50:05,682 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2025-03-08 17:50:05,682 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2025-03-08 17:50:05,682 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2025-03-08 17:50:05,682 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2025-03-08 17:50:05,682 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2025-03-08 17:50:05,682 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2025-03-08 17:50:05,682 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2025-03-08 17:50:05,682 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-03-08 17:50:05,682 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-03-08 17:50:05,682 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-03-08 17:50:05,682 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-03-08 17:50:05,682 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2025-03-08 17:50:05,682 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2025-03-08 17:50:05,682 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-08 17:50:05,682 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-03-08 17:50:05,682 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-03-08 17:50:05,682 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-03-08 17:50:05,682 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-03-08 17:50:05,682 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2025-03-08 17:50:05,922 INFO L256 CfgBuilder]: Building ICFG [2025-03-08 17:50:05,924 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-08 17:50:05,952 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L6874: havoc #t~malloc557.base, #t~malloc557.offset; [2025-03-08 17:50:05,980 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L263: havoc nondet_size_t_#t~nondet6#1; [2025-03-08 17:50:06,034 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L7767: havoc #t~mem828; [2025-03-08 17:50:06,048 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L266: havoc #t~nondet9; [2025-03-08 17:50:06,090 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L7353: 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; [2025-03-08 17:50:06,101 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L261: havoc #t~nondet4; [2025-03-08 17:50:13,177 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L6588: havoc aws_byte_buf_is_bounded_#t~mem477#1; [2025-03-08 17:50:13,216 INFO L? ?]: Removed 119 outVars from TransFormulas that were not future-live. [2025-03-08 17:50:13,216 INFO L307 CfgBuilder]: Performing block encoding [2025-03-08 17:50:13,224 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-08 17:50:13,224 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-08 17:50:13,224 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 05:50:13 BoogieIcfgContainer [2025-03-08 17:50:13,224 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-08 17:50:13,226 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-08 17:50:13,226 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-08 17:50:13,229 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-08 17:50:13,230 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.03 05:50:03" (1/3) ... [2025-03-08 17:50:13,230 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51c73138 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 05:50:13, skipping insertion in model container [2025-03-08 17:50:13,230 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:50:05" (2/3) ... [2025-03-08 17:50:13,231 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51c73138 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 05:50:13, skipping insertion in model container [2025-03-08 17:50:13,231 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 05:50:13" (3/3) ... [2025-03-08 17:50:13,231 INFO L128 eAbstractionObserver]: Analyzing ICFG aws_byte_buf_eq_c_str_harness_negated.i [2025-03-08 17:50:13,243 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-08 17:50:13,244 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG aws_byte_buf_eq_c_str_harness_negated.i that has 11 procedures, 138 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-03-08 17:50:13,287 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-08 17:50:13,295 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;@4da48522, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-08 17:50:13,296 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-03-08 17:50:13,300 INFO L276 IsEmpty]: Start isEmpty. Operand has 138 states, 90 states have (on average 1.2444444444444445) internal successors, (112), 92 states have internal predecessors, (112), 36 states have call successors, (36), 10 states have call predecessors, (36), 10 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2025-03-08 17:50:13,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2025-03-08 17:50:13,309 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 17:50:13,309 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 3, 3, 3, 3, 2, 2, 2, 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] [2025-03-08 17:50:13,310 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 17:50:13,315 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 17:50:13,315 INFO L85 PathProgramCache]: Analyzing trace with hash -1564787415, now seen corresponding path program 1 times [2025-03-08 17:50:13,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 17:50:13,321 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1292971824] [2025-03-08 17:50:13,322 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 17:50:13,322 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 17:51:18,974 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 124 statements into 1 equivalence classes. [2025-03-08 17:51:19,435 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 124 of 124 statements. [2025-03-08 17:51:19,437 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 17:51:19,438 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 17:51:20,152 INFO L134 CoverageAnalysis]: Checked inductivity of 204 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 186 trivial. 0 not checked. [2025-03-08 17:51:20,153 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 17:51:20,153 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1292971824] [2025-03-08 17:51:20,153 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1292971824] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 17:51:20,154 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [181774882] [2025-03-08 17:51:20,154 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 17:51:20,154 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 17:51:20,155 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 17:51:20,157 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-08 17:51:20,158 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process