./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_byte_buf_append_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 798a7b37 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_append_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 675ab2caa96cd9b2eb6b721efd0b1d83fbee049c822d5b953bd418a0212be644 --- Real Ultimate output --- This is Ultimate 0.3.0-?-798a7b3-m [2025-03-04 02:37:41,236 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-04 02:37:41,282 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2025-03-04 02:37:41,288 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-04 02:37:41,289 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-04 02:37:41,311 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-04 02:37:41,311 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-04 02:37:41,311 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-04 02:37:41,312 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-04 02:37:41,312 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-04 02:37:41,312 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-04 02:37:41,312 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-04 02:37:41,312 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-04 02:37:41,312 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-04 02:37:41,312 INFO L153 SettingsManager]: * Use SBE=true [2025-03-04 02:37:41,313 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-04 02:37:41,313 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-04 02:37:41,313 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-04 02:37:41,313 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-04 02:37:41,313 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-04 02:37:41,313 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-04 02:37:41,313 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-04 02:37:41,313 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-04 02:37:41,313 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-04 02:37:41,313 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-04 02:37:41,313 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-04 02:37:41,314 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-04 02:37:41,314 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-04 02:37:41,314 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-04 02:37:41,314 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 02:37:41,314 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-04 02:37:41,314 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-04 02:37:41,314 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-04 02:37:41,314 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-04 02:37:41,314 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-04 02:37:41,314 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-04 02:37:41,314 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-04 02:37:41,314 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-04 02:37:41,315 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-04 02:37:41,315 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-04 02:37:41,315 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 -> 675ab2caa96cd9b2eb6b721efd0b1d83fbee049c822d5b953bd418a0212be644 [2025-03-04 02:37:41,537 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-04 02:37:41,546 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-04 02:37:41,548 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-04 02:37:41,550 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-04 02:37:41,550 INFO L274 PluginConnector]: CDTParser initialized [2025-03-04 02:37:41,551 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_byte_buf_append_harness.i [2025-03-04 02:37:42,691 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9a02dca9a/8672f6e0191841ca842784e92637b295/FLAG9433c4ea2 [2025-03-04 02:37:43,183 INFO L384 CDTParser]: Found 1 translation units. [2025-03-04 02:37:43,184 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_byte_buf_append_harness.i [2025-03-04 02:37:43,216 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9a02dca9a/8672f6e0191841ca842784e92637b295/FLAG9433c4ea2 [2025-03-04 02:37:43,290 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9a02dca9a/8672f6e0191841ca842784e92637b295 [2025-03-04 02:37:43,292 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-04 02:37:43,294 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-04 02:37:43,295 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-04 02:37:43,295 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-04 02:37:43,298 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-04 02:37:43,299 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 02:37:43" (1/1) ... [2025-03-04 02:37:43,300 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@63ec45f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:37:43, skipping insertion in model container [2025-03-04 02:37:43,300 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 02:37:43" (1/1) ... [2025-03-04 02:37:43,393 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-04 02:37:43,626 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_append_harness.i[4493,4506] [2025-03-04 02:37:43,635 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_append_harness.i[4553,4566] [2025-03-04 02:37:44,239 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:37:44,240 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:37:44,240 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:37:44,240 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:37:44,241 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:37:44,255 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:37:44,255 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:37:44,256 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:37:44,257 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:37:44,690 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:37:44,690 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:37:44,750 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 02:37:44,831 INFO L200 MainTranslator]: Completed pre-run [2025-03-04 02:37:44,841 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_append_harness.i[4493,4506] [2025-03-04 02:37:44,843 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_append_harness.i[4553,4566] [2025-03-04 02:37:44,884 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:37:44,885 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:37:44,885 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:37:44,885 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:37:44,888 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:37:44,896 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:37:44,897 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:37:44,898 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:37:44,901 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:37:45,002 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : "+r"(index)); [8291] [2025-03-04 02:37:45,005 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:37:45,006 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:37:45,015 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [8777-8788] [2025-03-04 02:37:45,028 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 02:37:45,182 INFO L204 MainTranslator]: Completed translation [2025-03-04 02:37:45,183 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:37:45 WrapperNode [2025-03-04 02:37:45,183 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-04 02:37:45,184 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-04 02:37:45,184 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-04 02:37:45,184 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-04 02:37:45,191 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:37:45" (1/1) ... [2025-03-04 02:37:45,267 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:37:45" (1/1) ... [2025-03-04 02:37:45,338 INFO L138 Inliner]: procedures = 680, calls = 2643, calls flagged for inlining = 60, calls inlined = 8, statements flattened = 869 [2025-03-04 02:37:45,340 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-04 02:37:45,340 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-04 02:37:45,340 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-04 02:37:45,341 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-04 02:37:45,348 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:37:45" (1/1) ... [2025-03-04 02:37:45,349 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:37:45" (1/1) ... [2025-03-04 02:37:45,358 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:37:45" (1/1) ... [2025-03-04 02:37:45,416 INFO L175 MemorySlicer]: Split 574 memory accesses to 8 slices as follows [2, 257, 9, 238, 9, 33, 4, 22]. 45 percent of accesses are in the largest equivalence class. The 25 initializations are split as follows [2, 0, 4, 6, 5, 4, 2, 2]. The 494 writes are split as follows [0, 257, 0, 232, 1, 3, 0, 1]. [2025-03-04 02:37:45,420 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:37:45" (1/1) ... [2025-03-04 02:37:45,421 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:37:45" (1/1) ... [2025-03-04 02:37:45,442 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:37:45" (1/1) ... [2025-03-04 02:37:45,444 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:37:45" (1/1) ... [2025-03-04 02:37:45,449 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:37:45" (1/1) ... [2025-03-04 02:37:45,452 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:37:45" (1/1) ... [2025-03-04 02:37:45,459 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-04 02:37:45,460 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-04 02:37:45,460 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-04 02:37:45,465 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-04 02:37:45,466 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:37:45" (1/1) ... [2025-03-04 02:37:45,472 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 02:37:45,481 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 02:37:45,493 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) [2025-03-04 02:37:45,496 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 [2025-03-04 02:37:45,513 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_is_valid [2025-03-04 02:37:45,513 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_is_valid [2025-03-04 02:37:45,514 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_cursor_is_valid [2025-03-04 02:37:45,514 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_cursor_is_valid [2025-03-04 02:37:45,514 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-03-04 02:37:45,514 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2025-03-04 02:37:45,515 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2025-03-04 02:37:45,515 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_append [2025-03-04 02:37:45,515 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_append [2025-03-04 02:37:45,515 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2025-03-04 02:37:45,515 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2025-03-04 02:37:45,515 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2025-03-04 02:37:45,515 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2025-03-04 02:37:45,515 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2025-03-04 02:37:45,516 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2025-03-04 02:37:45,516 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2025-03-04 02:37:45,516 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#7 [2025-03-04 02:37:45,516 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-03-04 02:37:45,516 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-03-04 02:37:45,516 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-03-04 02:37:45,516 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-03-04 02:37:45,516 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2025-03-04 02:37:45,516 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2025-03-04 02:37:45,516 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2025-03-04 02:37:45,516 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2025-03-04 02:37:45,516 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2025-03-04 02:37:45,516 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2025-03-04 02:37:45,516 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-03-04 02:37:45,516 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-03-04 02:37:45,517 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-03-04 02:37:45,517 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-04 02:37:45,517 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-03-04 02:37:45,517 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-03-04 02:37:45,517 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-03-04 02:37:45,517 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2025-03-04 02:37:45,517 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2025-03-04 02:37:45,517 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2025-03-04 02:37:45,517 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2025-03-04 02:37:45,517 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2025-03-04 02:37:45,517 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_impl [2025-03-04 02:37:45,517 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_impl [2025-03-04 02:37:45,517 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-04 02:37:45,517 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-04 02:37:45,517 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2025-03-04 02:37:45,518 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2025-03-04 02:37:45,518 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2025-03-04 02:37:45,518 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2025-03-04 02:37:45,518 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2025-03-04 02:37:45,518 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2025-03-04 02:37:45,518 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2025-03-04 02:37:45,518 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2025-03-04 02:37:45,518 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2025-03-04 02:37:45,518 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#7 [2025-03-04 02:37:45,518 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-03-04 02:37:45,518 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-03-04 02:37:45,518 INFO L130 BoogieDeclarations]: Found specification of procedure my_memcpy [2025-03-04 02:37:45,518 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memcpy [2025-03-04 02:37:45,518 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-03-04 02:37:45,518 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-03-04 02:37:45,519 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-03-04 02:37:45,519 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-03-04 02:37:45,519 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2025-03-04 02:37:45,519 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2025-03-04 02:37:45,519 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2025-03-04 02:37:45,519 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2025-03-04 02:37:45,519 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2025-03-04 02:37:45,519 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2025-03-04 02:37:45,519 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2025-03-04 02:37:45,519 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2025-03-04 02:37:45,519 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2025-03-04 02:37:45,519 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2025-03-04 02:37:45,519 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2025-03-04 02:37:45,519 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2025-03-04 02:37:45,519 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2025-03-04 02:37:45,520 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2025-03-04 02:37:45,520 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2025-03-04 02:37:45,520 INFO L130 BoogieDeclarations]: Found specification of procedure assert_bytes_match [2025-03-04 02:37:45,520 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_bytes_match [2025-03-04 02:37:45,520 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2025-03-04 02:37:45,520 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2025-03-04 02:37:45,520 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-03-04 02:37:45,520 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-03-04 02:37:45,520 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-03-04 02:37:45,520 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-03-04 02:37:45,520 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2025-03-04 02:37:45,520 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2025-03-04 02:37:45,520 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2025-03-04 02:37:45,520 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2025-03-04 02:37:45,520 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-04 02:37:45,521 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-03-04 02:37:45,521 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-03-04 02:37:45,521 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-03-04 02:37:45,521 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-03-04 02:37:45,521 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2025-03-04 02:37:45,521 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2025-03-04 02:37:45,521 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2025-03-04 02:37:45,748 INFO L256 CfgBuilder]: Building ICFG [2025-03-04 02:37:45,749 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-04 02:37:45,784 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L6886: havoc #t~malloc557.base, #t~malloc557.offset; [2025-03-04 02:37:45,787 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L266: havoc #t~nondet9; [2025-03-04 02:37:45,865 INFO L1325 $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; [2025-03-04 02:37:45,886 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L261: havoc #t~nondet4; [2025-03-04 02:37:45,923 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L7409: havoc #t~mem697;havoc #t~mem698;havoc #t~mem699.base, #t~mem699.offset;havoc #t~short700;havoc #t~mem701;havoc #t~mem702.base, #t~mem702.offset;havoc #t~short703;havoc #t~short704;havoc #t~short705;havoc #t~short706; [2025-03-04 02:37:45,989 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L7909: havoc #t~ret876; [2025-03-04 02:37:45,998 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L7342: havoc #t~ret657.base, #t~ret657.offset; [2025-03-04 02:37:52,696 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L6669: havoc aws_byte_cursor_is_bounded_#t~mem509#1; [2025-03-04 02:37:52,697 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L6600: havoc aws_byte_buf_is_bounded_#t~mem477#1; [2025-03-04 02:37:52,753 INFO L? ?]: Removed 96 outVars from TransFormulas that were not future-live. [2025-03-04 02:37:52,754 INFO L307 CfgBuilder]: Performing block encoding [2025-03-04 02:37:52,762 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-04 02:37:52,762 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-04 02:37:52,763 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 02:37:52 BoogieIcfgContainer [2025-03-04 02:37:52,763 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-04 02:37:52,764 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-04 02:37:52,765 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-04 02:37:52,768 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-04 02:37:52,768 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.03 02:37:43" (1/3) ... [2025-03-04 02:37:52,768 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6fe16b34 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 02:37:52, skipping insertion in model container [2025-03-04 02:37:52,768 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:37:45" (2/3) ... [2025-03-04 02:37:52,768 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6fe16b34 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 02:37:52, skipping insertion in model container [2025-03-04 02:37:52,768 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 02:37:52" (3/3) ... [2025-03-04 02:37:52,769 INFO L128 eAbstractionObserver]: Analyzing ICFG aws_byte_buf_append_harness.i [2025-03-04 02:37:52,782 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-04 02:37:52,783 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG aws_byte_buf_append_harness.i that has 14 procedures, 169 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-03-04 02:37:52,833 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-04 02:37:52,858 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;@6ef4bfc8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-04 02:37:52,858 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-03-04 02:37:52,863 INFO L276 IsEmpty]: Start isEmpty. Operand has 169 states, 106 states have (on average 1.2075471698113207) internal successors, (128), 107 states have internal predecessors, (128), 48 states have call successors, (48), 13 states have call predecessors, (48), 13 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2025-03-04 02:37:52,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2025-03-04 02:37:52,873 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 02:37:52,873 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 02:37:52,874 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-04 02:37:52,878 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 02:37:52,880 INFO L85 PathProgramCache]: Analyzing trace with hash -419054029, now seen corresponding path program 1 times [2025-03-04 02:37:52,886 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 02:37:52,887 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1176839858] [2025-03-04 02:37:52,887 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 02:37:52,887 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 02:39:01,027 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 98 statements into 1 equivalence classes. [2025-03-04 02:39:01,503 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 98 of 98 statements. [2025-03-04 02:39:01,503 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 02:39:01,504 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 02:39:02,176 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2025-03-04 02:39:02,177 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 02:39:02,177 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1176839858] [2025-03-04 02:39:02,177 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1176839858] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 02:39:02,177 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [960095842] [2025-03-04 02:39:02,178 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 02:39:02,178 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 02:39:02,178 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 02:39:02,180 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) [2025-03-04 02:39:02,212 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process