./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_byte_buf_reset_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8fc3dc66 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_reset_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 cda9529776bede8f1b2097af98f375819691ab0c72bb3e360b999e206011bf76 --- Real Ultimate output --- This is Ultimate 0.3.0-?-8fc3dc6-m [2025-03-17 07:00:28,395 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-17 07:00:28,450 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2025-03-17 07:00:28,455 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-17 07:00:28,455 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-17 07:00:28,476 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-17 07:00:28,477 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-17 07:00:28,477 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-17 07:00:28,477 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-17 07:00:28,478 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-17 07:00:28,478 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-17 07:00:28,478 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-17 07:00:28,478 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-17 07:00:28,478 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-17 07:00:28,478 INFO L153 SettingsManager]: * Use SBE=true [2025-03-17 07:00:28,478 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-17 07:00:28,478 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-17 07:00:28,478 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-17 07:00:28,478 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-17 07:00:28,478 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-17 07:00:28,479 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-17 07:00:28,479 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-17 07:00:28,479 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-17 07:00:28,479 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-17 07:00:28,479 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-17 07:00:28,479 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-17 07:00:28,479 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-17 07:00:28,479 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-17 07:00:28,479 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-17 07:00:28,479 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-17 07:00:28,479 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-17 07:00:28,479 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-17 07:00:28,479 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-17 07:00:28,479 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-17 07:00:28,479 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-17 07:00:28,479 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-17 07:00:28,481 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-17 07:00:28,481 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-17 07:00:28,481 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-17 07:00:28,481 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-17 07:00:28,481 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 -> cda9529776bede8f1b2097af98f375819691ab0c72bb3e360b999e206011bf76 [2025-03-17 07:00:28,704 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-17 07:00:28,711 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-17 07:00:28,713 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-17 07:00:28,714 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-17 07:00:28,714 INFO L274 PluginConnector]: CDTParser initialized [2025-03-17 07:00:28,715 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_byte_buf_reset_harness.i [2025-03-17 07:00:29,872 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ed4dbe4ed/5a395fbf9a07476abd1e867f69de15e5/FLAG6e93f91b1 [2025-03-17 07:00:30,389 INFO L384 CDTParser]: Found 1 translation units. [2025-03-17 07:00:30,389 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_byte_buf_reset_harness.i [2025-03-17 07:00:30,429 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ed4dbe4ed/5a395fbf9a07476abd1e867f69de15e5/FLAG6e93f91b1 [2025-03-17 07:00:30,452 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ed4dbe4ed/5a395fbf9a07476abd1e867f69de15e5 [2025-03-17 07:00:30,454 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-17 07:00:30,455 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-17 07:00:30,456 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-17 07:00:30,456 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-17 07:00:30,460 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-17 07:00:30,460 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 07:00:30" (1/1) ... [2025-03-17 07:00:30,462 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@58508e9f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:00:30, skipping insertion in model container [2025-03-17 07:00:30,462 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 07:00:30" (1/1) ... [2025-03-17 07:00:30,535 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-17 07:00:30,714 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_reset_harness.i[4492,4505] [2025-03-17 07:00:30,721 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_reset_harness.i[4552,4565] [2025-03-17 07:00:31,239 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:00:31,239 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:00:31,240 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:00:31,240 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:00:31,241 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:00:31,251 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:00:31,251 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:00:31,252 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:00:31,252 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:00:31,757 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:00:31,758 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:00:31,837 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 07:00:31,926 INFO L200 MainTranslator]: Completed pre-run [2025-03-17 07:00:31,943 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_reset_harness.i[4492,4505] [2025-03-17 07:00:31,944 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_reset_harness.i[4552,4565] [2025-03-17 07:00:31,976 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:00:31,978 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:00:31,978 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:00:31,978 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:00:31,978 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:00:31,984 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:00:31,984 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:00:31,986 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:00:31,986 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:00:32,074 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : "+r"(index)); [8291] [2025-03-17 07:00:32,076 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:00:32,077 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:00:32,087 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [8777-8788] [2025-03-17 07:00:32,102 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 07:00:32,283 INFO L204 MainTranslator]: Completed translation [2025-03-17 07:00:32,284 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:00:32 WrapperNode [2025-03-17 07:00:32,284 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-17 07:00:32,285 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-17 07:00:32,286 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-17 07:00:32,286 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-17 07:00:32,290 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:00:32" (1/1) ... [2025-03-17 07:00:32,352 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:00:32" (1/1) ... [2025-03-17 07:00:32,413 INFO L138 Inliner]: procedures = 680, calls = 2629, calls flagged for inlining = 59, calls inlined = 7, statements flattened = 822 [2025-03-17 07:00:32,419 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-17 07:00:32,419 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-17 07:00:32,420 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-17 07:00:32,420 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-17 07:00:32,428 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:00:32" (1/1) ... [2025-03-17 07:00:32,429 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:00:32" (1/1) ... [2025-03-17 07:00:32,437 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:00:32" (1/1) ... [2025-03-17 07:00:32,505 INFO L175 MemorySlicer]: Split 542 memory accesses to 6 slices as follows [2, 7, 257, 7, 238, 31]. 47 percent of accesses are in the largest equivalence class. The 21 initializations are split as follows [2, 4, 0, 5, 6, 4]. The 494 writes are split as follows [0, 0, 257, 1, 232, 4]. [2025-03-17 07:00:32,505 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:00:32" (1/1) ... [2025-03-17 07:00:32,505 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:00:32" (1/1) ... [2025-03-17 07:00:32,543 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:00:32" (1/1) ... [2025-03-17 07:00:32,548 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:00:32" (1/1) ... [2025-03-17 07:00:32,557 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:00:32" (1/1) ... [2025-03-17 07:00:32,561 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:00:32" (1/1) ... [2025-03-17 07:00:32,569 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-17 07:00:32,570 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-17 07:00:32,570 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-17 07:00:32,570 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-17 07:00:32,571 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:00:32" (1/1) ... [2025-03-17 07:00:32,575 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-17 07:00:32,585 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 07:00:32,600 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) [2025-03-17 07:00:32,602 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 [2025-03-17 07:00:32,623 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_is_valid [2025-03-17 07:00:32,624 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_is_valid [2025-03-17 07:00:32,624 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-03-17 07:00:32,624 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2025-03-17 07:00:32,624 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2025-03-17 07:00:32,624 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2025-03-17 07:00:32,625 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2025-03-17 07:00:32,625 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2025-03-17 07:00:32,625 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2025-03-17 07:00:32,625 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2025-03-17 07:00:32,625 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2025-03-17 07:00:32,626 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-03-17 07:00:32,626 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-03-17 07:00:32,626 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-03-17 07:00:32,626 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-03-17 07:00:32,626 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2025-03-17 07:00:32,626 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2025-03-17 07:00:32,626 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-03-17 07:00:32,626 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-03-17 07:00:32,626 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_secure_zero [2025-03-17 07:00:32,626 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_secure_zero [2025-03-17 07:00:32,626 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-03-17 07:00:32,626 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-17 07:00:32,626 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-03-17 07:00:32,626 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-03-17 07:00:32,626 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-03-17 07:00:32,628 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2025-03-17 07:00:32,628 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2025-03-17 07:00:32,628 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2025-03-17 07:00:32,628 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-17 07:00:32,628 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-17 07:00:32,628 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2025-03-17 07:00:32,628 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2025-03-17 07:00:32,628 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2025-03-17 07:00:32,628 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2025-03-17 07:00:32,628 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2025-03-17 07:00:32,628 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2025-03-17 07:00:32,628 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2025-03-17 07:00:32,628 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2025-03-17 07:00:32,628 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-03-17 07:00:32,628 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-03-17 07:00:32,629 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-03-17 07:00:32,629 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-03-17 07:00:32,629 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-03-17 07:00:32,629 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-03-17 07:00:32,629 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2025-03-17 07:00:32,629 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2025-03-17 07:00:32,629 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2025-03-17 07:00:32,629 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2025-03-17 07:00:32,629 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2025-03-17 07:00:32,629 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2025-03-17 07:00:32,629 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2025-03-17 07:00:32,629 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2025-03-17 07:00:32,629 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2025-03-17 07:00:32,629 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2025-03-17 07:00:32,629 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2025-03-17 07:00:32,629 INFO L130 BoogieDeclarations]: Found specification of procedure assert_all_bytes_are [2025-03-17 07:00:32,629 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_all_bytes_are [2025-03-17 07:00:32,629 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2025-03-17 07:00:32,629 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2025-03-17 07:00:32,629 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-03-17 07:00:32,629 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-03-17 07:00:32,629 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-03-17 07:00:32,629 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-03-17 07:00:32,629 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2025-03-17 07:00:32,629 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2025-03-17 07:00:32,629 INFO L130 BoogieDeclarations]: Found specification of procedure memset_impl [2025-03-17 07:00:32,629 INFO L138 BoogieDeclarations]: Found implementation of procedure memset_impl [2025-03-17 07:00:32,629 INFO L130 BoogieDeclarations]: Found specification of procedure my_memset [2025-03-17 07:00:32,630 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memset [2025-03-17 07:00:32,630 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-17 07:00:32,630 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-03-17 07:00:32,630 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-03-17 07:00:32,630 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-03-17 07:00:32,630 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-03-17 07:00:32,630 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2025-03-17 07:00:32,855 INFO L256 CfgBuilder]: Building ICFG [2025-03-17 07:00:32,856 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-17 07:00:32,895 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L6886: havoc #t~malloc557.base, #t~malloc557.offset; [2025-03-17 07:00:32,918 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L266: havoc #t~nondet9; [2025-03-17 07:00:32,927 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L7342: havoc #t~ret656.base, #t~ret656.offset; [2025-03-17 07:00:32,988 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L7399: 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; [2025-03-17 07:00:33,004 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L261: havoc #t~nondet4; [2025-03-17 07:00:39,719 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L6600: havoc aws_byte_buf_is_bounded_#t~mem477#1; [2025-03-17 07:00:39,876 INFO L? ?]: Removed 67 outVars from TransFormulas that were not future-live. [2025-03-17 07:00:39,876 INFO L307 CfgBuilder]: Performing block encoding [2025-03-17 07:00:39,883 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-17 07:00:39,885 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-17 07:00:39,885 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 07:00:39 BoogieIcfgContainer [2025-03-17 07:00:39,886 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-17 07:00:39,887 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-17 07:00:39,887 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-17 07:00:39,891 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-17 07:00:39,891 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.03 07:00:30" (1/3) ... [2025-03-17 07:00:39,892 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6941326a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 07:00:39, skipping insertion in model container [2025-03-17 07:00:39,892 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:00:32" (2/3) ... [2025-03-17 07:00:39,893 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6941326a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 07:00:39, skipping insertion in model container [2025-03-17 07:00:39,893 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 07:00:39" (3/3) ... [2025-03-17 07:00:39,894 INFO L128 eAbstractionObserver]: Analyzing ICFG aws_byte_buf_reset_harness.i [2025-03-17 07:00:39,906 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-17 07:00:39,908 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG aws_byte_buf_reset_harness.i that has 12 procedures, 107 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-03-17 07:00:39,955 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-17 07:00:39,964 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;@1978f564, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-17 07:00:39,965 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-03-17 07:00:39,968 INFO L276 IsEmpty]: Start isEmpty. Operand has 107 states, 71 states have (on average 1.2394366197183098) internal successors, (88), 73 states have internal predecessors, (88), 23 states have call successors, (23), 11 states have call predecessors, (23), 11 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2025-03-17 07:00:39,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2025-03-17 07:00:39,973 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 07:00:39,973 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 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] [2025-03-17 07:00:39,974 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-17 07:00:39,977 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 07:00:39,977 INFO L85 PathProgramCache]: Analyzing trace with hash -1804231999, now seen corresponding path program 1 times [2025-03-17 07:00:39,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 07:00:39,984 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [128528197] [2025-03-17 07:00:39,984 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 07:00:39,984 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 07:01:47,957 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 43 statements into 1 equivalence classes. [2025-03-17 07:01:48,506 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 43 of 43 statements. [2025-03-17 07:01:48,507 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 07:01:48,507 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 07:01:49,230 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2025-03-17 07:01:49,231 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 07:01:49,231 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [128528197] [2025-03-17 07:01:49,231 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [128528197] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 07:01:49,231 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [176027398] [2025-03-17 07:01:49,231 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 07:01:49,232 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 07:01:49,232 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 07:01:49,235 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) [2025-03-17 07:01:49,237 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process