./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_byte_buf_advance_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_advance_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 e55ac5434b951971879a153437b53000a6218e43a47ba6f85cc2dc8135a82b6f --- Real Ultimate output --- This is Ultimate 0.3.0-?-e2fb8be-m [2025-03-08 17:48:11,904 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-08 17:48:11,945 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2025-03-08 17:48:11,951 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-08 17:48:11,951 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-08 17:48:11,976 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-08 17:48:11,977 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-08 17:48:11,977 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-08 17:48:11,978 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-08 17:48:11,978 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-08 17:48:11,979 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-08 17:48:11,979 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-08 17:48:11,979 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-08 17:48:11,979 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-08 17:48:11,980 INFO L153 SettingsManager]: * Use SBE=true [2025-03-08 17:48:11,980 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-08 17:48:11,980 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-08 17:48:11,980 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-08 17:48:11,980 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-08 17:48:11,980 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-08 17:48:11,980 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-08 17:48:11,980 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-08 17:48:11,981 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-08 17:48:11,981 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-08 17:48:11,981 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-08 17:48:11,981 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-08 17:48:11,981 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-08 17:48:11,981 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-08 17:48:11,981 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-08 17:48:11,981 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 17:48:11,982 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-08 17:48:11,982 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-08 17:48:11,982 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-08 17:48:11,982 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-08 17:48:11,982 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-08 17:48:11,982 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-08 17:48:11,982 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-08 17:48:11,982 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-08 17:48:11,983 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-08 17:48:11,983 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-08 17:48:11,983 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 -> e55ac5434b951971879a153437b53000a6218e43a47ba6f85cc2dc8135a82b6f [2025-03-08 17:48:12,221 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-08 17:48:12,229 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-08 17:48:12,231 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-08 17:48:12,233 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-08 17:48:12,233 INFO L274 PluginConnector]: CDTParser initialized [2025-03-08 17:48:12,234 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_byte_buf_advance_harness_negated.i [2025-03-08 17:48:13,458 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9ffa7fe39/4b64b86e3e484422b6fcb3cd296a01f8/FLAG70f27c405 [2025-03-08 17:48:13,972 INFO L384 CDTParser]: Found 1 translation units. [2025-03-08 17:48:13,973 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_byte_buf_advance_harness_negated.i [2025-03-08 17:48:14,013 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9ffa7fe39/4b64b86e3e484422b6fcb3cd296a01f8/FLAG70f27c405 [2025-03-08 17:48:14,031 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9ffa7fe39/4b64b86e3e484422b6fcb3cd296a01f8 [2025-03-08 17:48:14,034 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-08 17:48:14,035 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-08 17:48:14,036 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-08 17:48:14,036 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-08 17:48:14,040 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-08 17:48:14,041 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 05:48:14" (1/1) ... [2025-03-08 17:48:14,041 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@791212dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:48:14, skipping insertion in model container [2025-03-08 17:48:14,042 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 05:48:14" (1/1) ... [2025-03-08 17:48:14,110 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-08 17:48:14,316 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_advance_harness_negated.i[4494,4507] [2025-03-08 17:48:14,322 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_advance_harness_negated.i[4554,4567] [2025-03-08 17:48:14,838 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:48:14,839 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:48:14,839 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:48:14,840 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:48:14,841 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:48:14,856 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:48:14,857 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:48:14,860 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:48:14,861 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:48:15,335 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:48:15,335 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:48:15,404 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 17:48:15,453 INFO L200 MainTranslator]: Completed pre-run [2025-03-08 17:48:15,469 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_advance_harness_negated.i[4494,4507] [2025-03-08 17:48:15,469 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_advance_harness_negated.i[4554,4567] [2025-03-08 17:48:15,505 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:48:15,506 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:48:15,506 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:48:15,507 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:48:15,507 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:48:15,512 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:48:15,513 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:48:15,514 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:48:15,514 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:48:15,609 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : "+r"(index)); [8259] [2025-03-08 17:48:15,612 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:48:15,613 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:48:15,682 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [8745-8756] [2025-03-08 17:48:15,696 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 17:48:15,800 INFO L204 MainTranslator]: Completed translation [2025-03-08 17:48:15,801 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:48:15 WrapperNode [2025-03-08 17:48:15,801 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-08 17:48:15,802 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-08 17:48:15,802 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-08 17:48:15,802 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-08 17:48:15,806 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:48:15" (1/1) ... [2025-03-08 17:48:15,877 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:48:15" (1/1) ... [2025-03-08 17:48:15,987 INFO L138 Inliner]: procedures = 680, calls = 2671, calls flagged for inlining = 60, calls inlined = 8, statements flattened = 974 [2025-03-08 17:48:15,990 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-08 17:48:15,990 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-08 17:48:15,991 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-08 17:48:15,991 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-08 17:48:15,998 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:48:15" (1/1) ... [2025-03-08 17:48:15,999 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:48:15" (1/1) ... [2025-03-08 17:48:16,007 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:48:15" (1/1) ... [2025-03-08 17:48:16,060 INFO L175 MemorySlicer]: Split 591 memory accesses to 5 slices as follows [2, 257, 245, 81, 6]. 43 percent of accesses are in the largest equivalence class. The 25 initializations are split as follows [2, 0, 11, 12, 0]. The 508 writes are split as follows [0, 257, 232, 17, 2]. [2025-03-08 17:48:16,060 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:48:15" (1/1) ... [2025-03-08 17:48:16,065 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:48:15" (1/1) ... [2025-03-08 17:48:16,093 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:48:15" (1/1) ... [2025-03-08 17:48:16,095 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:48:15" (1/1) ... [2025-03-08 17:48:16,101 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:48:15" (1/1) ... [2025-03-08 17:48:16,104 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:48:15" (1/1) ... [2025-03-08 17:48:16,117 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-08 17:48:16,118 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-08 17:48:16,118 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-08 17:48:16,118 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-08 17:48:16,122 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:48:15" (1/1) ... [2025-03-08 17:48:16,127 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 17:48:16,137 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 17:48:16,163 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 17:48:16,167 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 17:48:16,194 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_is_valid [2025-03-08 17:48:16,195 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_is_valid [2025-03-08 17:48:16,195 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-03-08 17:48:16,195 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2025-03-08 17:48:16,195 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2025-03-08 17:48:16,195 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2025-03-08 17:48:16,195 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2025-03-08 17:48:16,195 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2025-03-08 17:48:16,195 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2025-03-08 17:48:16,195 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2025-03-08 17:48:16,195 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-03-08 17:48:16,195 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-03-08 17:48:16,195 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-03-08 17:48:16,195 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-03-08 17:48:16,195 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2025-03-08 17:48:16,195 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-03-08 17:48:16,195 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-03-08 17:48:16,196 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-03-08 17:48:16,196 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-08 17:48:16,196 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-03-08 17:48:16,196 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-03-08 17:48:16,196 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-03-08 17:48:16,196 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2025-03-08 17:48:16,196 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2025-03-08 17:48:16,196 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_byte_buf_has_allocated_buffer_member [2025-03-08 17:48:16,196 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_byte_buf_has_allocated_buffer_member [2025-03-08 17:48:16,196 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-08 17:48:16,196 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-08 17:48:16,196 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2025-03-08 17:48:16,196 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2025-03-08 17:48:16,196 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2025-03-08 17:48:16,196 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2025-03-08 17:48:16,196 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2025-03-08 17:48:16,196 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2025-03-08 17:48:16,196 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2025-03-08 17:48:16,196 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2025-03-08 17:48:16,197 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2025-03-08 17:48:16,198 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-03-08 17:48:16,198 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-03-08 17:48:16,198 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-03-08 17:48:16,198 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-03-08 17:48:16,198 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-03-08 17:48:16,198 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-03-08 17:48:16,198 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2025-03-08 17:48:16,198 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2025-03-08 17:48:16,199 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2025-03-08 17:48:16,199 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2025-03-08 17:48:16,199 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2025-03-08 17:48:16,199 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2025-03-08 17:48:16,199 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2025-03-08 17:48:16,199 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2025-03-08 17:48:16,199 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2025-03-08 17:48:16,199 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_is_bounded [2025-03-08 17:48:16,199 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_is_bounded [2025-03-08 17:48:16,199 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-03-08 17:48:16,199 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-03-08 17:48:16,199 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-03-08 17:48:16,199 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-03-08 17:48:16,199 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2025-03-08 17:48:16,199 INFO L130 BoogieDeclarations]: Found specification of procedure memset_impl [2025-03-08 17:48:16,199 INFO L138 BoogieDeclarations]: Found implementation of procedure memset_impl [2025-03-08 17:48:16,199 INFO L130 BoogieDeclarations]: Found specification of procedure my_memset [2025-03-08 17:48:16,199 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memset [2025-03-08 17:48:16,199 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-08 17:48:16,200 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-03-08 17:48:16,200 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-03-08 17:48:16,200 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-03-08 17:48:16,200 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-03-08 17:48:16,492 INFO L256 CfgBuilder]: Building ICFG [2025-03-08 17:48:16,494 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-08 17:48:16,525 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L6874: havoc #t~malloc557.base, #t~malloc557.offset; [2025-03-08 17:48:16,584 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L7310: havoc #t~ret656.base, #t~ret656.offset; [2025-03-08 17:48:16,636 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L7367: havoc #t~mem681;havoc #t~mem682;havoc #t~short683;havoc #t~mem684.base, #t~mem684.offset;havoc #t~short685;havoc #t~mem686;havoc #t~mem687;havoc #t~mem688;havoc #t~short689;havoc #t~mem690;havoc #t~mem691.base, #t~mem691.offset;havoc #t~short692;havoc #t~short693;havoc #t~short694;havoc #t~short695; [2025-03-08 17:48:16,649 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L261: havoc #t~nondet4; [2025-03-08 17:48:16,655 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L6588: havoc #t~mem477; [2025-03-08 17:48:23,336 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L8205: havoc aws_byte_buf_from_array_#t~mem1061#1;havoc aws_byte_buf_from_array_#t~mem1062#1.base, aws_byte_buf_from_array_#t~mem1062#1.offset;havoc aws_byte_buf_from_array_#t~mem1063#1;havoc aws_byte_buf_from_array_#t~mem1064#1.base, aws_byte_buf_from_array_#t~mem1064#1.offset;call ULTIMATE.dealloc(aws_byte_buf_from_array_~#buf~1#1.base, aws_byte_buf_from_array_~#buf~1#1.offset);havoc aws_byte_buf_from_array_~#buf~1#1.base, aws_byte_buf_from_array_~#buf~1#1.offset; [2025-03-08 17:48:23,336 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L263: havoc nondet_size_t_#t~nondet6#1; [2025-03-08 17:48:23,398 INFO L? ?]: Removed 109 outVars from TransFormulas that were not future-live. [2025-03-08 17:48:23,398 INFO L307 CfgBuilder]: Performing block encoding [2025-03-08 17:48:23,408 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-08 17:48:23,411 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-08 17:48:23,411 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 05:48:23 BoogieIcfgContainer [2025-03-08 17:48:23,411 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-08 17:48:23,415 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-08 17:48:23,415 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-08 17:48:23,419 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-08 17:48:23,419 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.03 05:48:14" (1/3) ... [2025-03-08 17:48:23,419 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f20e768 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 05:48:23, skipping insertion in model container [2025-03-08 17:48:23,420 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:48:15" (2/3) ... [2025-03-08 17:48:23,420 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f20e768 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 05:48:23, skipping insertion in model container [2025-03-08 17:48:23,420 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 05:48:23" (3/3) ... [2025-03-08 17:48:23,421 INFO L128 eAbstractionObserver]: Analyzing ICFG aws_byte_buf_advance_harness_negated.i [2025-03-08 17:48:23,432 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-08 17:48:23,434 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG aws_byte_buf_advance_harness_negated.i that has 12 procedures, 170 locations, 1 initial locations, 2 loop locations, and 1 error locations. [2025-03-08 17:48:23,483 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-08 17:48:23,493 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;@e8477fa, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-08 17:48:23,494 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-03-08 17:48:23,497 INFO L276 IsEmpty]: Start isEmpty. Operand has 170 states, 103 states have (on average 1.2135922330097086) internal successors, (125), 103 states have internal predecessors, (125), 55 states have call successors, (55), 11 states have call predecessors, (55), 11 states have return successors, (55), 55 states have call predecessors, (55), 55 states have call successors, (55) [2025-03-08 17:48:23,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2025-03-08 17:48:23,505 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 17:48:23,506 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 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] [2025-03-08 17:48:23,506 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 17:48:23,511 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 17:48:23,512 INFO L85 PathProgramCache]: Analyzing trace with hash -140569671, now seen corresponding path program 1 times [2025-03-08 17:48:23,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 17:48:23,519 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [983754909] [2025-03-08 17:48:23,519 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 17:48:23,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 17:49:33,516 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 89 statements into 1 equivalence classes. [2025-03-08 17:49:33,980 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 89 of 89 statements. [2025-03-08 17:49:33,981 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 17:49:33,981 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 17:49:34,615 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2025-03-08 17:49:34,616 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 17:49:34,616 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [983754909] [2025-03-08 17:49:34,616 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [983754909] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 17:49:34,616 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1646484705] [2025-03-08 17:49:34,616 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 17:49:34,617 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 17:49:34,617 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 17:49:34,619 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 17:49:34,653 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process