./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_byte_buf_write_u8_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_write_u8_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 e8acf6765f11fcd1914a16b600f73d0dd655e8b1eed69990958acc7eadb94c2e --- Real Ultimate output --- This is Ultimate 0.3.0-?-e2fb8be-m [2025-03-08 17:55:48,865 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-08 17:55:48,910 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2025-03-08 17:55:48,913 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-08 17:55:48,915 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-08 17:55:48,937 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-08 17:55:48,938 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-08 17:55:48,938 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-08 17:55:48,938 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-08 17:55:48,939 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-08 17:55:48,939 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-08 17:55:48,939 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-08 17:55:48,940 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-08 17:55:48,940 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-08 17:55:48,940 INFO L153 SettingsManager]: * Use SBE=true [2025-03-08 17:55:48,940 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-08 17:55:48,940 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-08 17:55:48,940 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-08 17:55:48,940 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-08 17:55:48,941 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-08 17:55:48,941 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-08 17:55:48,941 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-08 17:55:48,941 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-08 17:55:48,941 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-08 17:55:48,941 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-08 17:55:48,941 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-08 17:55:48,941 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-08 17:55:48,941 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-08 17:55:48,941 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-08 17:55:48,941 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 17:55:48,942 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-08 17:55:48,942 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-08 17:55:48,942 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-08 17:55:48,942 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-08 17:55:48,942 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-08 17:55:48,942 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-08 17:55:48,942 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-08 17:55:48,942 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-08 17:55:48,942 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-08 17:55:48,942 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-08 17:55:48,942 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 -> e8acf6765f11fcd1914a16b600f73d0dd655e8b1eed69990958acc7eadb94c2e [2025-03-08 17:55:49,172 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-08 17:55:49,179 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-08 17:55:49,182 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-08 17:55:49,183 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-08 17:55:49,183 INFO L274 PluginConnector]: CDTParser initialized [2025-03-08 17:55:49,184 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_byte_buf_write_u8_harness.i [2025-03-08 17:55:50,313 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/82ad30b56/da2b7da33bcf4a3b97e0cd5f29a749ae/FLAG71e057998 [2025-03-08 17:55:50,757 INFO L384 CDTParser]: Found 1 translation units. [2025-03-08 17:55:50,758 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_u8_harness.i [2025-03-08 17:55:50,788 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/82ad30b56/da2b7da33bcf4a3b97e0cd5f29a749ae/FLAG71e057998 [2025-03-08 17:55:50,798 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/82ad30b56/da2b7da33bcf4a3b97e0cd5f29a749ae [2025-03-08 17:55:50,800 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-08 17:55:50,802 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-08 17:55:50,802 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-08 17:55:50,802 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-08 17:55:50,805 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-08 17:55:50,806 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 05:55:50" (1/1) ... [2025-03-08 17:55:50,806 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@19408277 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:55:50, skipping insertion in model container [2025-03-08 17:55:50,806 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 05:55:50" (1/1) ... [2025-03-08 17:55:50,860 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-08 17:55:51,019 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_write_u8_harness.i[4495,4508] [2025-03-08 17:55:51,025 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_write_u8_harness.i[4555,4568] [2025-03-08 17:55:51,388 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:55:51,389 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:55:51,389 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:55:51,390 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:55:51,390 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:55:51,399 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:55:51,399 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:55:51,400 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:55:51,400 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:55:51,787 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:55:51,787 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:55:51,856 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 17:55:51,933 INFO L200 MainTranslator]: Completed pre-run [2025-03-08 17:55:51,944 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_write_u8_harness.i[4495,4508] [2025-03-08 17:55:51,947 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_write_u8_harness.i[4555,4568] [2025-03-08 17:55:51,979 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:55:51,979 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:55:51,980 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:55:51,980 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:55:51,981 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:55:51,987 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:55:51,987 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:55:51,987 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:55:51,988 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:55:52,055 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : "+r"(index)); [8291] [2025-03-08 17:55:52,056 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:55:52,057 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:55:52,065 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [8777-8788] [2025-03-08 17:55:52,076 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 17:55:52,245 INFO L204 MainTranslator]: Completed translation [2025-03-08 17:55:52,246 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:55:52 WrapperNode [2025-03-08 17:55:52,246 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-08 17:55:52,247 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-08 17:55:52,247 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-08 17:55:52,247 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-08 17:55:52,251 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:55:52" (1/1) ... [2025-03-08 17:55:52,311 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:55:52" (1/1) ... [2025-03-08 17:55:52,387 INFO L138 Inliner]: procedures = 680, calls = 2618, calls flagged for inlining = 63, calls inlined = 10, statements flattened = 871 [2025-03-08 17:55:52,388 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-08 17:55:52,388 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-08 17:55:52,388 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-08 17:55:52,388 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-08 17:55:52,396 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:55:52" (1/1) ... [2025-03-08 17:55:52,396 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:55:52" (1/1) ... [2025-03-08 17:55:52,405 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:55:52" (1/1) ... [2025-03-08 17:55:52,463 INFO L175 MemorySlicer]: Split 560 memory accesses to 7 slices as follows [2, 257, 238, 2, 47, 6, 8]. 46 percent of accesses are in the largest equivalence class. The 21 initializations are split as follows [2, 0, 6, 0, 8, 0, 5]. The 496 writes are split as follows [0, 257, 232, 1, 3, 2, 1]. [2025-03-08 17:55:52,464 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:55:52" (1/1) ... [2025-03-08 17:55:52,464 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:55:52" (1/1) ... [2025-03-08 17:55:52,489 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:55:52" (1/1) ... [2025-03-08 17:55:52,492 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:55:52" (1/1) ... [2025-03-08 17:55:52,498 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:55:52" (1/1) ... [2025-03-08 17:55:52,500 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:55:52" (1/1) ... [2025-03-08 17:55:52,510 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-08 17:55:52,511 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-08 17:55:52,511 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-08 17:55:52,511 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-08 17:55:52,511 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:55:52" (1/1) ... [2025-03-08 17:55:52,519 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 17:55:52,529 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 17:55:52,542 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 17:55:52,546 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 17:55:52,559 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_is_valid [2025-03-08 17:55:52,559 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_is_valid [2025-03-08 17:55:52,559 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-03-08 17:55:52,559 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2025-03-08 17:55:52,559 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2025-03-08 17:55:52,560 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2025-03-08 17:55:52,560 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2025-03-08 17:55:52,560 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2025-03-08 17:55:52,560 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2025-03-08 17:55:52,560 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2025-03-08 17:55:52,560 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2025-03-08 17:55:52,560 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2025-03-08 17:55:52,560 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-03-08 17:55:52,560 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-03-08 17:55:52,560 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-03-08 17:55:52,560 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-03-08 17:55:52,560 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2025-03-08 17:55:52,560 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2025-03-08 17:55:52,560 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2025-03-08 17:55:52,560 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-03-08 17:55:52,561 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-03-08 17:55:52,561 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-03-08 17:55:52,561 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-08 17:55:52,561 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-03-08 17:55:52,561 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-03-08 17:55:52,561 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-03-08 17:55:52,561 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2025-03-08 17:55:52,561 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2025-03-08 17:55:52,561 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2025-03-08 17:55:52,561 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2025-03-08 17:55:52,561 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_impl [2025-03-08 17:55:52,561 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_impl [2025-03-08 17:55:52,561 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-08 17:55:52,561 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-08 17:55:52,561 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2025-03-08 17:55:52,561 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2025-03-08 17:55:52,562 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2025-03-08 17:55:52,562 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2025-03-08 17:55:52,562 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2025-03-08 17:55:52,562 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2025-03-08 17:55:52,562 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2025-03-08 17:55:52,562 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2025-03-08 17:55:52,562 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2025-03-08 17:55:52,562 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2025-03-08 17:55:52,562 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2025-03-08 17:55:52,562 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-03-08 17:55:52,562 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-03-08 17:55:52,562 INFO L130 BoogieDeclarations]: Found specification of procedure my_memcpy [2025-03-08 17:55:52,562 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memcpy [2025-03-08 17:55:52,562 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-03-08 17:55:52,562 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-03-08 17:55:52,563 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-03-08 17:55:52,563 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-03-08 17:55:52,563 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2025-03-08 17:55:52,563 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2025-03-08 17:55:52,563 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2025-03-08 17:55:52,563 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2025-03-08 17:55:52,563 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_write [2025-03-08 17:55:52,563 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_write [2025-03-08 17:55:52,563 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2025-03-08 17:55:52,563 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2025-03-08 17:55:52,563 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2025-03-08 17:55:52,563 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2025-03-08 17:55:52,563 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2025-03-08 17:55:52,563 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2025-03-08 17:55:52,563 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2025-03-08 17:55:52,563 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2025-03-08 17:55:52,564 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2025-03-08 17:55:52,564 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-03-08 17:55:52,564 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-03-08 17:55:52,564 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-03-08 17:55:52,564 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-03-08 17:55:52,564 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2025-03-08 17:55:52,564 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2025-03-08 17:55:52,564 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2025-03-08 17:55:52,564 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-08 17:55:52,564 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-03-08 17:55:52,564 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-03-08 17:55:52,564 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-03-08 17:55:52,564 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-03-08 17:55:52,564 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2025-03-08 17:55:52,564 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2025-03-08 17:55:52,789 INFO L256 CfgBuilder]: Building ICFG [2025-03-08 17:55:52,791 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-08 17:55:52,817 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L6886: havoc #t~malloc557.base, #t~malloc557.offset; [2025-03-08 17:55:52,931 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L7399: havoc #t~mem682;havoc #t~mem683;havoc #t~short684;havoc #t~mem685.base, #t~mem685.offset;havoc #t~short686;havoc #t~mem687;havoc #t~mem688;havoc #t~mem689;havoc #t~short690;havoc #t~mem691;havoc #t~mem692.base, #t~mem692.offset;havoc #t~short693;havoc #t~short694;havoc #t~short695;havoc #t~short696; [2025-03-08 17:55:52,969 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L261: havoc #t~nondet4; [2025-03-08 17:55:52,975 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L7342: havoc #t~ret657.base, #t~ret657.offset; [2025-03-08 17:55:59,793 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L267: havoc nondet_uint8_t_#t~nondet10#1; [2025-03-08 17:55:59,793 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L263: havoc nondet_size_t_#t~nondet6#1; [2025-03-08 17:55:59,794 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L8577: havoc aws_byte_buf_write_u8_#t~ret1198#1;call ULTIMATE.dealloc(aws_byte_buf_write_u8_~#c#1.base, aws_byte_buf_write_u8_~#c#1.offset);havoc aws_byte_buf_write_u8_~#c#1.base, aws_byte_buf_write_u8_~#c#1.offset; [2025-03-08 17:55:59,794 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L6600: havoc aws_byte_buf_is_bounded_#t~mem477#1; [2025-03-08 17:55:59,837 INFO L? ?]: Removed 102 outVars from TransFormulas that were not future-live. [2025-03-08 17:55:59,838 INFO L307 CfgBuilder]: Performing block encoding [2025-03-08 17:55:59,847 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-08 17:55:59,850 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-08 17:55:59,851 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 05:55:59 BoogieIcfgContainer [2025-03-08 17:55:59,851 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-08 17:55:59,852 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-08 17:55:59,853 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-08 17:55:59,855 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-08 17:55:59,856 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.03 05:55:50" (1/3) ... [2025-03-08 17:55:59,856 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@746e6874 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 05:55:59, skipping insertion in model container [2025-03-08 17:55:59,856 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:55:52" (2/3) ... [2025-03-08 17:55:59,856 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@746e6874 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 05:55:59, skipping insertion in model container [2025-03-08 17:55:59,856 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 05:55:59" (3/3) ... [2025-03-08 17:55:59,857 INFO L128 eAbstractionObserver]: Analyzing ICFG aws_byte_buf_write_u8_harness.i [2025-03-08 17:55:59,866 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-08 17:55:59,867 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG aws_byte_buf_write_u8_harness.i that has 11 procedures, 130 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-03-08 17:55:59,907 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-08 17:55:59,915 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;@289b9ff7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-08 17:55:59,916 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-03-08 17:55:59,919 INFO L276 IsEmpty]: Start isEmpty. Operand has 130 states, 84 states have (on average 1.2261904761904763) internal successors, (103), 85 states have internal predecessors, (103), 34 states have call successors, (34), 10 states have call predecessors, (34), 10 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2025-03-08 17:55:59,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2025-03-08 17:55:59,927 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 17:55:59,928 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 4, 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 17:55:59,928 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 17:55:59,931 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 17:55:59,932 INFO L85 PathProgramCache]: Analyzing trace with hash 1124650777, now seen corresponding path program 1 times [2025-03-08 17:55:59,936 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 17:55:59,937 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1371194459] [2025-03-08 17:55:59,937 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 17:55:59,938 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 17:57:11,018 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 86 statements into 1 equivalence classes. [2025-03-08 17:57:11,484 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 86 of 86 statements. [2025-03-08 17:57:11,485 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 17:57:11,485 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 17:57:12,184 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2025-03-08 17:57:12,184 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 17:57:12,185 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1371194459] [2025-03-08 17:57:12,185 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1371194459] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 17:57:12,185 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1061328018] [2025-03-08 17:57:12,185 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 17:57:12,186 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 17:57:12,186 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 17:57:12,189 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 17:57:12,190 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process