./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_byte_buf_eq_c_str_harness.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.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 9e4ccc391c063e90fb229c8b3638d2f1089d6ba2ff288522cf06bf650b1be9e5 --- Real Ultimate output --- This is Ultimate 0.3.0-?-e2fb8be-m [2025-03-08 17:49:48,207 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-08 17:49:48,257 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2025-03-08 17:49:48,260 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-08 17:49:48,260 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-08 17:49:48,276 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-08 17:49:48,277 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-08 17:49:48,278 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-08 17:49:48,278 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-08 17:49:48,278 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-08 17:49:48,278 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-08 17:49:48,278 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-08 17:49:48,278 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-08 17:49:48,278 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-08 17:49:48,279 INFO L153 SettingsManager]: * Use SBE=true [2025-03-08 17:49:48,280 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-08 17:49:48,280 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-08 17:49:48,280 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-08 17:49:48,280 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-08 17:49:48,280 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-08 17:49:48,280 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-08 17:49:48,280 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-08 17:49:48,280 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-08 17:49:48,281 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-08 17:49:48,281 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-08 17:49:48,281 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-08 17:49:48,281 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-08 17:49:48,281 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-08 17:49:48,281 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-08 17:49:48,281 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 17:49:48,281 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-08 17:49:48,282 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-08 17:49:48,282 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-08 17:49:48,282 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-08 17:49:48,282 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-08 17:49:48,282 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-08 17:49:48,282 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-08 17:49:48,282 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-08 17:49:48,282 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-08 17:49:48,282 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-08 17:49:48,282 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 -> 9e4ccc391c063e90fb229c8b3638d2f1089d6ba2ff288522cf06bf650b1be9e5 [2025-03-08 17:49:48,500 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-08 17:49:48,507 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-08 17:49:48,509 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-08 17:49:48,510 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-08 17:49:48,511 INFO L274 PluginConnector]: CDTParser initialized [2025-03-08 17:49:48,512 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_byte_buf_eq_c_str_harness.i [2025-03-08 17:49:49,657 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ece0bc486/1a7baa2bd0274fceb893cfb64c2544df/FLAGa7d723c74 [2025-03-08 17:49:50,138 INFO L384 CDTParser]: Found 1 translation units. [2025-03-08 17:49:50,139 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_byte_buf_eq_c_str_harness.i [2025-03-08 17:49:50,169 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ece0bc486/1a7baa2bd0274fceb893cfb64c2544df/FLAGa7d723c74 [2025-03-08 17:49:50,232 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ece0bc486/1a7baa2bd0274fceb893cfb64c2544df [2025-03-08 17:49:50,234 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-08 17:49:50,235 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-08 17:49:50,237 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-08 17:49:50,237 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-08 17:49:50,240 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-08 17:49:50,241 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 05:49:50" (1/1) ... [2025-03-08 17:49:50,241 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@57187763 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:49:50, skipping insertion in model container [2025-03-08 17:49:50,241 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 05:49:50" (1/1) ... [2025-03-08 17:49:50,321 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-08 17:49:50,506 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.i[4495,4508] [2025-03-08 17:49:50,514 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.i[4555,4568] [2025-03-08 17:49:50,964 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:49:50,965 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:49:50,965 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:49:50,969 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:49:50,969 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:49:50,978 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:49:50,978 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:49:50,979 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:49:50,980 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:49:51,384 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:49:51,387 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:49:51,451 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 17:49:51,490 INFO L200 MainTranslator]: Completed pre-run [2025-03-08 17:49:51,505 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.i[4495,4508] [2025-03-08 17:49:51,505 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.i[4555,4568] [2025-03-08 17:49:51,540 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:49:51,540 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:49:51,541 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:49:51,541 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:49:51,541 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:49:51,545 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:49:51,546 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:49:51,546 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:49:51,547 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:49:51,633 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : "+r"(index)); [8277] [2025-03-08 17:49:51,636 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:49:51,636 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:49:51,685 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [8763-8774] [2025-03-08 17:49:51,698 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 17:49:51,827 INFO L204 MainTranslator]: Completed translation [2025-03-08 17:49:51,828 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:49:51 WrapperNode [2025-03-08 17:49:51,828 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-08 17:49:51,829 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-08 17:49:51,829 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-08 17:49:51,829 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-08 17:49:51,833 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:49:51" (1/1) ... [2025-03-08 17:49:51,915 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:49:51" (1/1) ... [2025-03-08 17:49:51,974 INFO L138 Inliner]: procedures = 680, calls = 2633, calls flagged for inlining = 64, calls inlined = 10, statements flattened = 902 [2025-03-08 17:49:51,975 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-08 17:49:51,975 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-08 17:49:51,976 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-08 17:49:51,976 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-08 17:49:51,982 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:49:51" (1/1) ... [2025-03-08 17:49:51,983 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:49:51" (1/1) ... [2025-03-08 17:49:51,989 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:49:51" (1/1) ... [2025-03-08 17:49:52,044 INFO L175 MemorySlicer]: Split 556 memory accesses to 6 slices as follows [2, 257, 238, 40, 13, 6]. 46 percent of accesses are in the largest equivalence class. The 21 initializations are split as follows [2, 0, 6, 8, 5, 0]. The 493 writes are split as follows [0, 257, 232, 2, 0, 2]. [2025-03-08 17:49:52,045 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:49:51" (1/1) ... [2025-03-08 17:49:52,045 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:49:51" (1/1) ... [2025-03-08 17:49:52,079 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:49:51" (1/1) ... [2025-03-08 17:49:52,086 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:49:51" (1/1) ... [2025-03-08 17:49:52,095 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:49:51" (1/1) ... [2025-03-08 17:49:52,100 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:49:51" (1/1) ... [2025-03-08 17:49:52,113 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-08 17:49:52,114 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-08 17:49:52,114 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-08 17:49:52,114 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-08 17:49:52,118 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:49:51" (1/1) ... [2025-03-08 17:49:52,121 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 17:49:52,131 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 17:49:52,143 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 17:49:52,146 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 17:49:52,162 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_eq_c_str [2025-03-08 17:49:52,163 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_eq_c_str [2025-03-08 17:49:52,163 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_is_valid [2025-03-08 17:49:52,163 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_is_valid [2025-03-08 17:49:52,163 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-03-08 17:49:52,163 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2025-03-08 17:49:52,163 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2025-03-08 17:49:52,163 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2025-03-08 17:49:52,163 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2025-03-08 17:49:52,163 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2025-03-08 17:49:52,163 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2025-03-08 17:49:52,163 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2025-03-08 17:49:52,163 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2025-03-08 17:49:52,164 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-03-08 17:49:52,164 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-03-08 17:49:52,164 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-03-08 17:49:52,164 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-03-08 17:49:52,164 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2025-03-08 17:49:52,164 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2025-03-08 17:49:52,164 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-03-08 17:49:52,164 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-03-08 17:49:52,164 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-03-08 17:49:52,164 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-08 17:49:52,164 INFO L130 BoogieDeclarations]: Found specification of procedure save_byte_from_array [2025-03-08 17:49:52,164 INFO L138 BoogieDeclarations]: Found implementation of procedure save_byte_from_array [2025-03-08 17:49:52,164 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-03-08 17:49:52,164 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-03-08 17:49:52,164 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-03-08 17:49:52,165 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2025-03-08 17:49:52,165 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2025-03-08 17:49:52,165 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2025-03-08 17:49:52,165 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-08 17:49:52,165 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-08 17:49:52,165 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2025-03-08 17:49:52,165 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2025-03-08 17:49:52,165 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2025-03-08 17:49:52,165 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2025-03-08 17:49:52,165 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2025-03-08 17:49:52,165 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2025-03-08 17:49:52,165 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2025-03-08 17:49:52,165 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2025-03-08 17:49:52,165 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2025-03-08 17:49:52,165 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2025-03-08 17:49:52,165 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-03-08 17:49:52,166 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-03-08 17:49:52,166 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-03-08 17:49:52,166 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-03-08 17:49:52,166 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-03-08 17:49:52,166 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-03-08 17:49:52,166 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2025-03-08 17:49:52,167 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2025-03-08 17:49:52,167 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2025-03-08 17:49:52,167 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2025-03-08 17:49:52,167 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2025-03-08 17:49:52,167 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2025-03-08 17:49:52,167 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2025-03-08 17:49:52,167 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2025-03-08 17:49:52,167 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2025-03-08 17:49:52,167 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2025-03-08 17:49:52,167 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2025-03-08 17:49:52,167 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2025-03-08 17:49:52,167 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2025-03-08 17:49:52,167 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-03-08 17:49:52,167 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-03-08 17:49:52,167 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-03-08 17:49:52,167 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-03-08 17:49:52,167 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2025-03-08 17:49:52,168 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2025-03-08 17:49:52,168 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-08 17:49:52,168 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-03-08 17:49:52,168 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-03-08 17:49:52,168 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-03-08 17:49:52,168 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-03-08 17:49:52,168 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2025-03-08 17:49:52,401 INFO L256 CfgBuilder]: Building ICFG [2025-03-08 17:49:52,403 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-08 17:49:52,433 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L6886: havoc #t~malloc557.base, #t~malloc557.offset; [2025-03-08 17:49:52,466 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L263: havoc nondet_size_t_#t~nondet6#1; [2025-03-08 17:49:52,512 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L7799: havoc #t~mem828; [2025-03-08 17:49:52,529 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L266: havoc #t~nondet9; [2025-03-08 17:49:52,572 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L7385: havoc #t~mem679;havoc #t~mem680;havoc #t~short681;havoc #t~mem682.base, #t~mem682.offset;havoc #t~short683;havoc #t~mem684;havoc #t~mem685;havoc #t~mem686;havoc #t~short687;havoc #t~mem688;havoc #t~mem689.base, #t~mem689.offset;havoc #t~short690;havoc #t~short691;havoc #t~short692;havoc #t~short693; [2025-03-08 17:49:52,586 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L261: havoc #t~nondet4; [2025-03-08 17:49:59,371 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L6600: havoc aws_byte_buf_is_bounded_#t~mem477#1; [2025-03-08 17:49:59,395 INFO L? ?]: Removed 119 outVars from TransFormulas that were not future-live. [2025-03-08 17:49:59,395 INFO L307 CfgBuilder]: Performing block encoding [2025-03-08 17:49:59,405 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-08 17:49:59,405 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-08 17:49:59,406 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 05:49:59 BoogieIcfgContainer [2025-03-08 17:49:59,406 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-08 17:49:59,408 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-08 17:49:59,408 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-08 17:49:59,411 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-08 17:49:59,411 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.03 05:49:50" (1/3) ... [2025-03-08 17:49:59,411 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51ae4cea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 05:49:59, skipping insertion in model container [2025-03-08 17:49:59,411 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:49:51" (2/3) ... [2025-03-08 17:49:59,412 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51ae4cea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 05:49:59, skipping insertion in model container [2025-03-08 17:49:59,412 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 05:49:59" (3/3) ... [2025-03-08 17:49:59,412 INFO L128 eAbstractionObserver]: Analyzing ICFG aws_byte_buf_eq_c_str_harness.i [2025-03-08 17:49:59,423 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-08 17:49:59,424 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG aws_byte_buf_eq_c_str_harness.i that has 11 procedures, 138 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-03-08 17:49:59,467 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-08 17:49:59,476 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;@3acdae55, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-08 17:49:59,477 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-03-08 17:49:59,480 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 17:49:59,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2025-03-08 17:49:59,487 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 17:49:59,488 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 17:49:59,488 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 17:49:59,491 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 17:49:59,492 INFO L85 PathProgramCache]: Analyzing trace with hash -1564787415, now seen corresponding path program 1 times [2025-03-08 17:49:59,496 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 17:49:59,496 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [642059196] [2025-03-08 17:49:59,497 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 17:49:59,497 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 17:51:07,888 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 124 statements into 1 equivalence classes. [2025-03-08 17:51:08,378 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 124 of 124 statements. [2025-03-08 17:51:08,381 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 17:51:08,381 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 17:51:09,048 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 17:51:09,049 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 17:51:09,050 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [642059196] [2025-03-08 17:51:09,050 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [642059196] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 17:51:09,050 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [568216434] [2025-03-08 17:51:09,050 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 17:51:09,050 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 17:51:09,051 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 17:51:09,053 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 17:51:09,055 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process