./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_byte_buf_from_c_str_harness_negated.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e2fb8bed Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/aws-c-common/aws_byte_buf_from_c_str_harness_negated.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 979d4544ed7a4a819d06bd545bc402347e028009bb631538cf6c19233d498345 --- Real Ultimate output --- This is Ultimate 0.3.0-?-e2fb8be-m [2025-03-08 17:51:07,388 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-08 17:51:07,438 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2025-03-08 17:51:07,443 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-08 17:51:07,444 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-08 17:51:07,460 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-08 17:51:07,460 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-08 17:51:07,460 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-08 17:51:07,461 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-08 17:51:07,461 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-08 17:51:07,461 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-08 17:51:07,461 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-08 17:51:07,461 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-08 17:51:07,461 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-08 17:51:07,461 INFO L153 SettingsManager]: * Use SBE=true [2025-03-08 17:51:07,461 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-08 17:51:07,462 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-08 17:51:07,462 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-08 17:51:07,462 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-08 17:51:07,462 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-08 17:51:07,462 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-08 17:51:07,462 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-08 17:51:07,462 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-08 17:51:07,462 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-08 17:51:07,462 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-08 17:51:07,462 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-08 17:51:07,463 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-08 17:51:07,463 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-08 17:51:07,463 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-08 17:51:07,463 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 17:51:07,463 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-08 17:51:07,463 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-08 17:51:07,463 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-08 17:51:07,463 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-08 17:51:07,463 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-08 17:51:07,463 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-08 17:51:07,464 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-08 17:51:07,464 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-08 17:51:07,464 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-08 17:51:07,464 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-08 17:51:07,464 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 -> 979d4544ed7a4a819d06bd545bc402347e028009bb631538cf6c19233d498345 [2025-03-08 17:51:07,687 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-08 17:51:07,695 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-08 17:51:07,697 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-08 17:51:07,698 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-08 17:51:07,698 INFO L274 PluginConnector]: CDTParser initialized [2025-03-08 17:51:07,700 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_byte_buf_from_c_str_harness_negated.i [2025-03-08 17:51:08,840 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ce89a219a/c77342e25a9348828c6d16c68fe20a99/FLAG3d4d4dce8 [2025-03-08 17:51:09,230 INFO L384 CDTParser]: Found 1 translation units. [2025-03-08 17:51:09,231 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_byte_buf_from_c_str_harness_negated.i [2025-03-08 17:51:09,255 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ce89a219a/c77342e25a9348828c6d16c68fe20a99/FLAG3d4d4dce8 [2025-03-08 17:51:09,396 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ce89a219a/c77342e25a9348828c6d16c68fe20a99 [2025-03-08 17:51:09,399 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-08 17:51:09,400 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-08 17:51:09,401 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-08 17:51:09,401 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-08 17:51:09,405 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-08 17:51:09,405 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 05:51:09" (1/1) ... [2025-03-08 17:51:09,407 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2da7f044 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:51:09, skipping insertion in model container [2025-03-08 17:51:09,407 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 05:51:09" (1/1) ... [2025-03-08 17:51:09,469 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-08 17:51:09,630 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_from_c_str_harness_negated.i[4497,4510] [2025-03-08 17:51:09,637 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_from_c_str_harness_negated.i[4557,4570] [2025-03-08 17:51:10,062 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:51:10,063 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:51:10,063 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:51:10,063 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:51:10,064 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:51:10,072 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:51:10,072 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:51:10,073 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:51:10,074 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:51:10,432 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:51:10,432 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:51:10,490 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 17:51:10,531 INFO L200 MainTranslator]: Completed pre-run [2025-03-08 17:51:10,544 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_from_c_str_harness_negated.i[4497,4510] [2025-03-08 17:51:10,545 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_from_c_str_harness_negated.i[4557,4570] [2025-03-08 17:51:10,574 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:51:10,576 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:51:10,576 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:51:10,576 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:51:10,577 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:51:10,581 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:51:10,581 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:51:10,582 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:51:10,582 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:51:10,698 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : "+r"(index)); [8237] [2025-03-08 17:51:10,700 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:51:10,700 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:51:10,710 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [8723-8734] [2025-03-08 17:51:10,723 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 17:51:10,868 INFO L204 MainTranslator]: Completed translation [2025-03-08 17:51:10,868 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:51:10 WrapperNode [2025-03-08 17:51:10,868 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-08 17:51:10,869 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-08 17:51:10,869 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-08 17:51:10,869 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-08 17:51:10,873 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:51:10" (1/1) ... [2025-03-08 17:51:10,929 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:51:10" (1/1) ... [2025-03-08 17:51:10,978 INFO L138 Inliner]: procedures = 679, calls = 2616, calls flagged for inlining = 60, calls inlined = 6, statements flattened = 831 [2025-03-08 17:51:10,979 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-08 17:51:10,979 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-08 17:51:10,981 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-08 17:51:10,981 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-08 17:51:10,988 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:51:10" (1/1) ... [2025-03-08 17:51:10,988 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:51:10" (1/1) ... [2025-03-08 17:51:10,992 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:51:10" (1/1) ... [2025-03-08 17:51:11,037 INFO L175 MemorySlicer]: Split 536 memory accesses to 5 slices as follows [2, 257, 31, 241, 5]. 48 percent of accesses are in the largest equivalence class. The 17 initializations are split as follows [2, 0, 4, 6, 5]. The 493 writes are split as follows [0, 257, 4, 232, 0]. [2025-03-08 17:51:11,037 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:51:10" (1/1) ... [2025-03-08 17:51:11,037 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:51:10" (1/1) ... [2025-03-08 17:51:11,069 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:51:10" (1/1) ... [2025-03-08 17:51:11,071 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:51:10" (1/1) ... [2025-03-08 17:51:11,077 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:51:10" (1/1) ... [2025-03-08 17:51:11,080 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:51:10" (1/1) ... [2025-03-08 17:51:11,087 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-08 17:51:11,088 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-08 17:51:11,088 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-08 17:51:11,088 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-08 17:51:11,088 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:51:10" (1/1) ... [2025-03-08 17:51:11,097 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 17:51:11,122 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 17:51:11,132 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 17:51:11,137 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 17:51:11,150 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_is_valid [2025-03-08 17:51:11,151 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_is_valid [2025-03-08 17:51:11,151 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-03-08 17:51:11,151 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2025-03-08 17:51:11,151 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2025-03-08 17:51:11,152 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2025-03-08 17:51:11,152 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2025-03-08 17:51:11,152 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2025-03-08 17:51:11,152 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2025-03-08 17:51:11,152 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2025-03-08 17:51:11,152 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-03-08 17:51:11,153 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-03-08 17:51:11,153 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-03-08 17:51:11,153 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-03-08 17:51:11,153 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2025-03-08 17:51:11,153 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-03-08 17:51:11,153 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-03-08 17:51:11,153 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-03-08 17:51:11,153 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-08 17:51:11,153 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-03-08 17:51:11,153 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-03-08 17:51:11,153 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-03-08 17:51:11,153 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2025-03-08 17:51:11,153 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2025-03-08 17:51:11,153 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-08 17:51:11,153 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-08 17:51:11,153 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2025-03-08 17:51:11,153 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2025-03-08 17:51:11,153 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2025-03-08 17:51:11,153 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2025-03-08 17:51:11,153 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2025-03-08 17:51:11,153 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2025-03-08 17:51:11,153 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2025-03-08 17:51:11,153 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-03-08 17:51:11,153 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-03-08 17:51:11,153 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-03-08 17:51:11,154 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-03-08 17:51:11,154 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-03-08 17:51:11,155 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-03-08 17:51:11,155 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2025-03-08 17:51:11,155 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2025-03-08 17:51:11,155 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2025-03-08 17:51:11,155 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2025-03-08 17:51:11,155 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2025-03-08 17:51:11,155 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2025-03-08 17:51:11,155 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2025-03-08 17:51:11,155 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2025-03-08 17:51:11,155 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2025-03-08 17:51:11,155 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-03-08 17:51:11,155 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-03-08 17:51:11,155 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-03-08 17:51:11,155 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-03-08 17:51:11,155 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2025-03-08 17:51:11,155 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-08 17:51:11,155 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-03-08 17:51:11,155 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-03-08 17:51:11,155 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-03-08 17:51:11,155 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-03-08 17:51:11,354 INFO L256 CfgBuilder]: Building ICFG [2025-03-08 17:51:11,356 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-08 17:51:11,388 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L6874: havoc #t~malloc557.base, #t~malloc557.offset; [2025-03-08 17:51:11,390 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L266: havoc #t~nondet9; [2025-03-08 17:51:11,433 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L7345: havoc #t~mem678;havoc #t~mem679;havoc #t~short680;havoc #t~mem681.base, #t~mem681.offset;havoc #t~short682;havoc #t~mem683;havoc #t~mem684;havoc #t~mem685;havoc #t~short686;havoc #t~mem687;havoc #t~mem688.base, #t~mem688.offset;havoc #t~short689;havoc #t~short690;havoc #t~short691;havoc #t~short692; [2025-03-08 17:51:11,448 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L261: havoc #t~nondet4; [2025-03-08 17:51:18,047 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L8168: havoc aws_byte_buf_from_c_str_#t~mem1053#1;havoc aws_byte_buf_from_c_str_#t~mem1054#1.base, aws_byte_buf_from_c_str_#t~mem1054#1.offset;havoc aws_byte_buf_from_c_str_#t~mem1055#1;havoc aws_byte_buf_from_c_str_#t~mem1056#1.base, aws_byte_buf_from_c_str_#t~mem1056#1.offset;call ULTIMATE.dealloc(aws_byte_buf_from_c_str_~#buf~0#1.base, aws_byte_buf_from_c_str_~#buf~0#1.offset);havoc aws_byte_buf_from_c_str_~#buf~0#1.base, aws_byte_buf_from_c_str_~#buf~0#1.offset; [2025-03-08 17:51:18,067 INFO L? ?]: Removed 76 outVars from TransFormulas that were not future-live. [2025-03-08 17:51:18,067 INFO L307 CfgBuilder]: Performing block encoding [2025-03-08 17:51:18,077 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-08 17:51:18,078 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-08 17:51:18,078 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 05:51:18 BoogieIcfgContainer [2025-03-08 17:51:18,079 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-08 17:51:18,081 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-08 17:51:18,081 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-08 17:51:18,085 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-08 17:51:18,085 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.03 05:51:09" (1/3) ... [2025-03-08 17:51:18,086 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c50b1b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 05:51:18, skipping insertion in model container [2025-03-08 17:51:18,086 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:51:10" (2/3) ... [2025-03-08 17:51:18,086 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c50b1b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 05:51:18, skipping insertion in model container [2025-03-08 17:51:18,086 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 05:51:18" (3/3) ... [2025-03-08 17:51:18,087 INFO L128 eAbstractionObserver]: Analyzing ICFG aws_byte_buf_from_c_str_harness_negated.i [2025-03-08 17:51:18,097 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-08 17:51:18,099 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG aws_byte_buf_from_c_str_harness_negated.i that has 7 procedures, 87 locations, 1 initial locations, 0 loop locations, and 1 error locations. [2025-03-08 17:51:18,138 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-08 17:51:18,147 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;@4b76d5a8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-08 17:51:18,147 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-03-08 17:51:18,151 INFO L276 IsEmpty]: Start isEmpty. Operand has 87 states, 59 states have (on average 1.2372881355932204) internal successors, (73), 60 states have internal predecessors, (73), 20 states have call successors, (20), 6 states have call predecessors, (20), 6 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2025-03-08 17:51:18,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2025-03-08 17:51:18,155 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 17:51:18,155 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 17:51:18,156 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 17:51:18,160 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 17:51:18,160 INFO L85 PathProgramCache]: Analyzing trace with hash -208531953, now seen corresponding path program 1 times [2025-03-08 17:51:18,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 17:51:18,166 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [504345896] [2025-03-08 17:51:18,166 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 17:51:18,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 17:52:25,458 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 18 statements into 1 equivalence classes. [2025-03-08 17:52:25,949 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 18 of 18 statements. [2025-03-08 17:52:25,950 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 17:52:25,950 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 17:52:28,005 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 17:52:28,006 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 17:52:28,006 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [504345896] [2025-03-08 17:52:28,006 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [504345896] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 17:52:28,006 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 17:52:28,007 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-08 17:52:28,007 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [983289267] [2025-03-08 17:52:28,008 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 17:52:28,010 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-08 17:52:28,010 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 17:52:28,022 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-08 17:52:28,022 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-08 17:52:28,024 INFO L87 Difference]: Start difference. First operand has 87 states, 59 states have (on average 1.2372881355932204) internal successors, (73), 60 states have internal predecessors, (73), 20 states have call successors, (20), 6 states have call predecessors, (20), 6 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) Second operand has 5 states, 4 states have (on average 3.25) internal successors, (13), 5 states have internal predecessors, (13), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-03-08 17:52:28,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 17:52:28,258 INFO L93 Difference]: Finished difference Result 167 states and 232 transitions. [2025-03-08 17:52:28,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-08 17:52:28,260 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 5 states have internal predecessors, (13), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 18 [2025-03-08 17:52:28,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 17:52:28,265 INFO L225 Difference]: With dead ends: 167 [2025-03-08 17:52:28,265 INFO L226 Difference]: Without dead ends: 82 [2025-03-08 17:52:28,268 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-08 17:52:28,269 INFO L435 NwaCegarLoop]: 107 mSDtfsCounter, 0 mSDsluCounter, 309 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 416 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-08 17:52:28,270 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 416 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-08 17:52:28,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2025-03-08 17:52:28,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 82. [2025-03-08 17:52:28,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82 states, 54 states have (on average 1.2037037037037037) internal successors, (65), 57 states have internal predecessors, (65), 20 states have call successors, (20), 6 states have call predecessors, (20), 7 states have return successors, (19), 18 states have call predecessors, (19), 18 states have call successors, (19) [2025-03-08 17:52:28,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 104 transitions. [2025-03-08 17:52:28,308 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 104 transitions. Word has length 18 [2025-03-08 17:52:28,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 17:52:28,308 INFO L471 AbstractCegarLoop]: Abstraction has 82 states and 104 transitions. [2025-03-08 17:52:28,308 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 5 states have internal predecessors, (13), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-03-08 17:52:28,309 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 104 transitions. [2025-03-08 17:52:28,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2025-03-08 17:52:28,310 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 17:52:28,311 INFO L218 NwaCegarLoop]: trace histogram [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 17:52:28,311 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-08 17:52:28,311 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 17:52:28,312 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 17:52:28,312 INFO L85 PathProgramCache]: Analyzing trace with hash 1633082461, now seen corresponding path program 1 times [2025-03-08 17:52:28,312 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 17:52:28,312 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1480985956] [2025-03-08 17:52:28,312 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 17:52:28,312 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms