./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_string_destroy_secure_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e2fb8bed Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/aws-c-common/aws_string_destroy_secure_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 bc5ed5fb850d9a2c9d9a14514ffc7939afe81a277edfb59aefd3c5f66024eda8 --- Real Ultimate output --- This is Ultimate 0.3.0-?-e2fb8be-m [2025-03-08 18:17:57,712 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-08 18:17:57,758 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2025-03-08 18:17:57,765 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-08 18:17:57,765 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-08 18:17:57,783 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-08 18:17:57,784 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-08 18:17:57,784 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-08 18:17:57,785 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-08 18:17:57,785 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-08 18:17:57,785 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-08 18:17:57,785 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-08 18:17:57,786 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-08 18:17:57,786 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-08 18:17:57,786 INFO L153 SettingsManager]: * Use SBE=true [2025-03-08 18:17:57,786 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-08 18:17:57,786 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-08 18:17:57,786 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-08 18:17:57,786 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-08 18:17:57,787 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-08 18:17:57,787 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-08 18:17:57,787 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-08 18:17:57,787 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-08 18:17:57,787 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-08 18:17:57,787 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-08 18:17:57,787 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-08 18:17:57,787 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-08 18:17:57,788 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-08 18:17:57,788 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-08 18:17:57,788 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 18:17:57,788 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-08 18:17:57,788 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-08 18:17:57,788 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-08 18:17:57,788 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-08 18:17:57,788 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-08 18:17:57,789 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-08 18:17:57,789 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-08 18:17:57,789 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-08 18:17:57,789 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-08 18:17:57,789 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-08 18:17:57,789 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 -> bc5ed5fb850d9a2c9d9a14514ffc7939afe81a277edfb59aefd3c5f66024eda8 [2025-03-08 18:17:58,011 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-08 18:17:58,018 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-08 18:17:58,022 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-08 18:17:58,023 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-08 18:17:58,023 INFO L274 PluginConnector]: CDTParser initialized [2025-03-08 18:17:58,025 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_string_destroy_secure_harness.i [2025-03-08 18:17:59,138 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6ae99acbe/5c0eedb9f4fd4ea789470377e565243f/FLAGe665e21c7 [2025-03-08 18:17:59,595 INFO L384 CDTParser]: Found 1 translation units. [2025-03-08 18:17:59,595 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_string_destroy_secure_harness.i [2025-03-08 18:17:59,623 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6ae99acbe/5c0eedb9f4fd4ea789470377e565243f/FLAGe665e21c7 [2025-03-08 18:17:59,717 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6ae99acbe/5c0eedb9f4fd4ea789470377e565243f [2025-03-08 18:17:59,719 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-08 18:17:59,720 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-08 18:17:59,722 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-08 18:17:59,722 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-08 18:17:59,725 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-08 18:17:59,726 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 06:17:59" (1/1) ... [2025-03-08 18:17:59,727 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5614e273 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:17:59, skipping insertion in model container [2025-03-08 18:17:59,727 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 06:17:59" (1/1) ... [2025-03-08 18:17:59,784 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-08 18:17:59,967 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_string_destroy_secure_harness.i[4499,4512] [2025-03-08 18:17:59,974 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_string_destroy_secure_harness.i[4559,4572] [2025-03-08 18:18:00,415 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:18:00,416 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:18:00,417 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:18:00,417 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:18:00,418 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:18:00,425 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:18:00,426 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:18:00,427 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:18:00,427 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:18:00,807 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:18:00,808 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:18:00,909 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 18:18:00,951 INFO L200 MainTranslator]: Completed pre-run [2025-03-08 18:18:00,960 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_string_destroy_secure_harness.i[4499,4512] [2025-03-08 18:18:00,962 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_string_destroy_secure_harness.i[4559,4572] [2025-03-08 18:18:00,991 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:18:00,991 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:18:00,991 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:18:00,992 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:18:00,992 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:18:00,998 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:18:00,999 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:18:00,999 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:18:00,999 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:18:01,080 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : "+r"(index)); [8253] [2025-03-08 18:18:01,082 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:18:01,082 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:18:01,090 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [8739-8750] [2025-03-08 18:18:01,115 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 18:18:01,300 INFO L204 MainTranslator]: Completed translation [2025-03-08 18:18:01,301 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:18:01 WrapperNode [2025-03-08 18:18:01,301 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-08 18:18:01,302 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-08 18:18:01,302 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-08 18:18:01,302 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-08 18:18:01,307 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:18:01" (1/1) ... [2025-03-08 18:18:01,366 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:18:01" (1/1) ... [2025-03-08 18:18:01,430 INFO L138 Inliner]: procedures = 682, calls = 2778, calls flagged for inlining = 60, calls inlined = 8, statements flattened = 818 [2025-03-08 18:18:01,431 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-08 18:18:01,432 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-08 18:18:01,432 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-08 18:18:01,433 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-08 18:18:01,439 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:18:01" (1/1) ... [2025-03-08 18:18:01,439 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:18:01" (1/1) ... [2025-03-08 18:18:01,448 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:18:01" (1/1) ... [2025-03-08 18:18:01,503 INFO L175 MemorySlicer]: Split 531 memory accesses to 6 slices as follows [2, 257, 238, 12, 16, 6]. 48 percent of accesses are in the largest equivalence class. The 29 initializations are split as follows [2, 0, 6, 0, 16, 5]. The 493 writes are split as follows [0, 257, 232, 4, 0, 0]. [2025-03-08 18:18:01,504 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:18:01" (1/1) ... [2025-03-08 18:18:01,504 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:18:01" (1/1) ... [2025-03-08 18:18:01,528 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:18:01" (1/1) ... [2025-03-08 18:18:01,530 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:18:01" (1/1) ... [2025-03-08 18:18:01,534 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:18:01" (1/1) ... [2025-03-08 18:18:01,540 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:18:01" (1/1) ... [2025-03-08 18:18:01,553 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-08 18:18:01,553 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-08 18:18:01,553 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-08 18:18:01,553 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-08 18:18:01,554 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:18:01" (1/1) ... [2025-03-08 18:18:01,561 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 18:18:01,569 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 18:18:01,582 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 18:18:01,584 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 18:18:01,601 INFO L130 BoogieDeclarations]: Found specification of procedure aws_string_is_valid [2025-03-08 18:18:01,601 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_string_is_valid [2025-03-08 18:18:01,601 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_string_is_allocated_bounded_length [2025-03-08 18:18:01,601 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_string_is_allocated_bounded_length [2025-03-08 18:18:01,601 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-03-08 18:18:01,601 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2025-03-08 18:18:01,601 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2025-03-08 18:18:01,601 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2025-03-08 18:18:01,601 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2025-03-08 18:18:01,602 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2025-03-08 18:18:01,602 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2025-03-08 18:18:01,602 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2025-03-08 18:18:01,602 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2025-03-08 18:18:01,602 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-03-08 18:18:01,602 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-03-08 18:18:01,603 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-03-08 18:18:01,603 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-03-08 18:18:01,603 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2025-03-08 18:18:01,603 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2025-03-08 18:18:01,603 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-03-08 18:18:01,603 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-03-08 18:18:01,603 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-03-08 18:18:01,603 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-08 18:18:01,603 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-03-08 18:18:01,603 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-03-08 18:18:01,603 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-03-08 18:18:01,603 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2025-03-08 18:18:01,603 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2025-03-08 18:18:01,604 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2025-03-08 18:18:01,604 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-08 18:18:01,604 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-08 18:18:01,604 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2025-03-08 18:18:01,604 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2025-03-08 18:18:01,604 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2025-03-08 18:18:01,604 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2025-03-08 18:18:01,604 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2025-03-08 18:18:01,604 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2025-03-08 18:18:01,604 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2025-03-08 18:18:01,604 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2025-03-08 18:18:01,604 INFO L130 BoogieDeclarations]: Found specification of procedure aws_secure_zero [2025-03-08 18:18:01,605 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_secure_zero [2025-03-08 18:18:01,605 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mem_release [2025-03-08 18:18:01,605 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mem_release [2025-03-08 18:18:01,606 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2025-03-08 18:18:01,606 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2025-03-08 18:18:01,606 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2025-03-08 18:18:01,606 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#3 [2025-03-08 18:18:01,606 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#4 [2025-03-08 18:18:01,606 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#5 [2025-03-08 18:18:01,606 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2025-03-08 18:18:01,606 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2025-03-08 18:18:01,606 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2025-03-08 18:18:01,606 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#3 [2025-03-08 18:18:01,606 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#4 [2025-03-08 18:18:01,606 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#5 [2025-03-08 18:18:01,606 INFO L130 BoogieDeclarations]: Found specification of procedure aws_string_bytes [2025-03-08 18:18:01,606 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_string_bytes [2025-03-08 18:18:01,606 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-03-08 18:18:01,606 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-03-08 18:18:01,606 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-03-08 18:18:01,606 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-03-08 18:18:01,606 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-03-08 18:18:01,606 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2025-03-08 18:18:01,606 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2025-03-08 18:18:01,606 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2025-03-08 18:18:01,606 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2025-03-08 18:18:01,606 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2025-03-08 18:18:01,606 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2025-03-08 18:18:01,606 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2025-03-08 18:18:01,606 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2025-03-08 18:18:01,606 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2025-03-08 18:18:01,606 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2025-03-08 18:18:01,606 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2025-03-08 18:18:01,606 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2025-03-08 18:18:01,606 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2025-03-08 18:18:01,606 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-03-08 18:18:01,606 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-03-08 18:18:01,607 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-03-08 18:18:01,607 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-03-08 18:18:01,607 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2025-03-08 18:18:01,607 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2025-03-08 18:18:01,607 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-08 18:18:01,607 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-03-08 18:18:01,607 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-03-08 18:18:01,607 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-03-08 18:18:01,607 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-03-08 18:18:01,607 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2025-03-08 18:18:01,824 INFO L256 CfgBuilder]: Building ICFG [2025-03-08 18:18:01,825 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-08 18:18:01,850 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L6886: havoc #t~malloc557.base, #t~malloc557.offset; [2025-03-08 18:18:01,875 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L6256: havoc #t~mem472;havoc #t~short473;havoc #t~mem474;havoc #t~mem475;havoc #t~short476; [2025-03-08 18:18:01,876 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L266: havoc #t~nondet9; [2025-03-08 18:18:01,887 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L261: havoc #t~nondet4; [2025-03-08 18:18:01,977 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L6803: havoc #t~ret543#1.base, #t~ret543#1.offset; [2025-03-08 18:18:08,555 INFO L? ?]: Removed 86 outVars from TransFormulas that were not future-live. [2025-03-08 18:18:08,556 INFO L307 CfgBuilder]: Performing block encoding [2025-03-08 18:18:08,565 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-08 18:18:08,565 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-08 18:18:08,565 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 06:18:08 BoogieIcfgContainer [2025-03-08 18:18:08,565 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-08 18:18:08,567 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-08 18:18:08,567 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-08 18:18:08,570 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-08 18:18:08,571 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.03 06:17:59" (1/3) ... [2025-03-08 18:18:08,571 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@381fcb3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 06:18:08, skipping insertion in model container [2025-03-08 18:18:08,571 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:18:01" (2/3) ... [2025-03-08 18:18:08,571 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@381fcb3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 06:18:08, skipping insertion in model container [2025-03-08 18:18:08,571 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 06:18:08" (3/3) ... [2025-03-08 18:18:08,572 INFO L128 eAbstractionObserver]: Analyzing ICFG aws_string_destroy_secure_harness.i [2025-03-08 18:18:08,582 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-08 18:18:08,585 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG aws_string_destroy_secure_harness.i that has 18 procedures, 122 locations, 1 initial locations, 6 loop locations, and 1 error locations. [2025-03-08 18:18:08,629 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-08 18:18:08,638 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;@a077dd6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-08 18:18:08,638 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-03-08 18:18:08,643 INFO L276 IsEmpty]: Start isEmpty. Operand has 102 states, 68 states have (on average 1.1911764705882353) internal successors, (81), 69 states have internal predecessors, (81), 20 states have call successors, (20), 12 states have call predecessors, (20), 12 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2025-03-08 18:18:08,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2025-03-08 18:18:08,649 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 18:18:08,649 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 18:18:08,650 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 18:18:08,653 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 18:18:08,653 INFO L85 PathProgramCache]: Analyzing trace with hash 2022999115, now seen corresponding path program 1 times [2025-03-08 18:18:08,659 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 18:18:08,660 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [655898554] [2025-03-08 18:18:08,661 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 18:18:08,662 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 18:19:13,900 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 63 statements into 1 equivalence classes. [2025-03-08 18:19:14,390 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 63 of 63 statements. [2025-03-08 18:19:14,390 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 18:19:14,390 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 18:19:15,006 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2025-03-08 18:19:15,007 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 18:19:15,007 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [655898554] [2025-03-08 18:19:15,008 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [655898554] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 18:19:15,009 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1422061379] [2025-03-08 18:19:15,010 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 18:19:15,010 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 18:19:15,010 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 18:19:15,012 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-08 18:19:15,013 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process