./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 8fc3dc66 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/aws-c-common/aws_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-?-8fc3dc6-m [2025-03-17 07:24:59,938 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-17 07:24:59,999 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2025-03-17 07:25:00,006 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-17 07:25:00,006 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-17 07:25:00,030 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-17 07:25:00,031 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-17 07:25:00,031 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-17 07:25:00,032 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-17 07:25:00,032 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-17 07:25:00,033 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-17 07:25:00,033 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-17 07:25:00,033 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-17 07:25:00,033 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-17 07:25:00,034 INFO L153 SettingsManager]: * Use SBE=true [2025-03-17 07:25:00,034 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-17 07:25:00,034 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-17 07:25:00,034 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-17 07:25:00,034 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-17 07:25:00,034 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-17 07:25:00,035 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-17 07:25:00,035 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-17 07:25:00,035 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-17 07:25:00,035 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-17 07:25:00,035 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-17 07:25:00,035 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-17 07:25:00,035 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-17 07:25:00,035 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-17 07:25:00,035 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-17 07:25:00,035 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-17 07:25:00,035 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-17 07:25:00,036 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-17 07:25:00,036 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-17 07:25:00,036 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-17 07:25:00,036 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-17 07:25:00,036 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-17 07:25:00,036 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-17 07:25:00,036 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-17 07:25:00,036 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-17 07:25:00,037 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-17 07:25:00,037 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 [2025-03-17 07:25:00,268 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-17 07:25:00,275 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-17 07:25:00,279 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-17 07:25:00,280 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-17 07:25:00,280 INFO L274 PluginConnector]: CDTParser initialized [2025-03-17 07:25:00,281 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_string_destroy_secure_harness.i [2025-03-17 07:25:01,556 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b8dbed13d/9db99c27de5c41a89453b0e0c8cdb26c/FLAG96c9ff5ee [2025-03-17 07:25:02,073 INFO L384 CDTParser]: Found 1 translation units. [2025-03-17 07:25:02,074 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_string_destroy_secure_harness.i [2025-03-17 07:25:02,114 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b8dbed13d/9db99c27de5c41a89453b0e0c8cdb26c/FLAG96c9ff5ee [2025-03-17 07:25:02,612 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b8dbed13d/9db99c27de5c41a89453b0e0c8cdb26c [2025-03-17 07:25:02,616 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-17 07:25:02,617 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-17 07:25:02,619 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-17 07:25:02,619 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-17 07:25:02,623 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-17 07:25:02,624 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 07:25:02" (1/1) ... [2025-03-17 07:25:02,624 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@13842abe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:25:02, skipping insertion in model container [2025-03-17 07:25:02,624 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 07:25:02" (1/1) ... [2025-03-17 07:25:02,709 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-17 07:25:03,000 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] [2025-03-17 07:25:03,009 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] [2025-03-17 07:25:03,697 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:25:03,697 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:25:03,697 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:25:03,698 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:25:03,698 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:25:03,714 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:25:03,715 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:25:03,716 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:25:03,716 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:25:04,220 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:25:04,221 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:25:04,342 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 07:25:04,401 INFO L200 MainTranslator]: Completed pre-run [2025-03-17 07:25:04,418 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] [2025-03-17 07:25:04,418 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] [2025-03-17 07:25:04,452 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:25:04,453 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:25:04,453 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:25:04,454 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:25:04,455 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:25:04,459 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:25:04,459 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:25:04,460 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:25:04,461 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:25:04,544 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : "+r"(index)); [8253] [2025-03-17 07:25:04,545 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:25:04,545 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:25:04,555 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [8739-8750] [2025-03-17 07:25:04,582 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 07:25:04,789 INFO L204 MainTranslator]: Completed translation [2025-03-17 07:25:04,790 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:25:04 WrapperNode [2025-03-17 07:25:04,790 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-17 07:25:04,792 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-17 07:25:04,792 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-17 07:25:04,792 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-17 07:25:04,798 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:25:04" (1/1) ... [2025-03-17 07:25:04,875 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:25:04" (1/1) ... [2025-03-17 07:25:04,928 INFO L138 Inliner]: procedures = 682, calls = 2778, calls flagged for inlining = 60, calls inlined = 8, statements flattened = 818 [2025-03-17 07:25:04,928 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-17 07:25:04,929 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-17 07:25:04,929 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-17 07:25:04,929 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-17 07:25:04,944 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:25:04" (1/1) ... [2025-03-17 07:25:04,944 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:25:04" (1/1) ... [2025-03-17 07:25:04,949 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:25:04" (1/1) ... [2025-03-17 07:25:05,012 INFO L175 MemorySlicer]: Split 531 memory accesses to 6 slices as follows [2, 257, 238, 16, 6, 12]. 48 percent of accesses are in the largest equivalence class. The 29 initializations are split as follows [2, 0, 6, 16, 5, 0]. The 493 writes are split as follows [0, 257, 232, 0, 0, 4]. [2025-03-17 07:25:05,012 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:25:04" (1/1) ... [2025-03-17 07:25:05,015 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:25:04" (1/1) ... [2025-03-17 07:25:05,048 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:25:04" (1/1) ... [2025-03-17 07:25:05,054 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:25:04" (1/1) ... [2025-03-17 07:25:05,066 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:25:04" (1/1) ... [2025-03-17 07:25:05,070 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:25:04" (1/1) ... [2025-03-17 07:25:05,080 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-17 07:25:05,083 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-17 07:25:05,084 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-17 07:25:05,084 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-17 07:25:05,084 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:25:04" (1/1) ... [2025-03-17 07:25:05,089 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-17 07:25:05,101 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 07:25:05,122 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-03-17 07:25:05,133 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-03-17 07:25:05,155 INFO L130 BoogieDeclarations]: Found specification of procedure aws_string_is_valid [2025-03-17 07:25:05,155 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_string_is_valid [2025-03-17 07:25:05,155 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_string_is_allocated_bounded_length [2025-03-17 07:25:05,155 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_string_is_allocated_bounded_length [2025-03-17 07:25:05,155 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-03-17 07:25:05,155 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2025-03-17 07:25:05,156 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2025-03-17 07:25:05,156 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2025-03-17 07:25:05,156 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2025-03-17 07:25:05,156 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2025-03-17 07:25:05,156 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2025-03-17 07:25:05,156 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2025-03-17 07:25:05,156 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2025-03-17 07:25:05,156 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-03-17 07:25:05,156 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-03-17 07:25:05,156 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-03-17 07:25:05,156 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-03-17 07:25:05,156 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2025-03-17 07:25:05,156 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2025-03-17 07:25:05,156 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-03-17 07:25:05,156 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-03-17 07:25:05,156 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-03-17 07:25:05,156 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-17 07:25:05,156 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-03-17 07:25:05,156 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-03-17 07:25:05,156 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-03-17 07:25:05,158 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2025-03-17 07:25:05,158 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2025-03-17 07:25:05,158 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2025-03-17 07:25:05,158 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-17 07:25:05,158 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-17 07:25:05,158 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2025-03-17 07:25:05,158 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2025-03-17 07:25:05,158 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2025-03-17 07:25:05,158 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2025-03-17 07:25:05,158 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2025-03-17 07:25:05,159 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2025-03-17 07:25:05,159 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2025-03-17 07:25:05,159 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2025-03-17 07:25:05,159 INFO L130 BoogieDeclarations]: Found specification of procedure aws_secure_zero [2025-03-17 07:25:05,159 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_secure_zero [2025-03-17 07:25:05,159 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mem_release [2025-03-17 07:25:05,159 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mem_release [2025-03-17 07:25:05,159 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2025-03-17 07:25:05,159 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2025-03-17 07:25:05,159 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2025-03-17 07:25:05,159 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#3 [2025-03-17 07:25:05,159 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#4 [2025-03-17 07:25:05,159 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#5 [2025-03-17 07:25:05,159 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2025-03-17 07:25:05,159 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2025-03-17 07:25:05,159 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2025-03-17 07:25:05,159 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#3 [2025-03-17 07:25:05,159 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#4 [2025-03-17 07:25:05,159 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#5 [2025-03-17 07:25:05,159 INFO L130 BoogieDeclarations]: Found specification of procedure aws_string_bytes [2025-03-17 07:25:05,159 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_string_bytes [2025-03-17 07:25:05,159 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-03-17 07:25:05,159 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-03-17 07:25:05,159 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-03-17 07:25:05,159 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-03-17 07:25:05,159 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-03-17 07:25:05,160 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2025-03-17 07:25:05,160 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2025-03-17 07:25:05,160 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2025-03-17 07:25:05,160 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2025-03-17 07:25:05,160 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2025-03-17 07:25:05,160 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2025-03-17 07:25:05,160 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2025-03-17 07:25:05,160 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2025-03-17 07:25:05,160 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2025-03-17 07:25:05,160 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2025-03-17 07:25:05,160 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2025-03-17 07:25:05,160 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2025-03-17 07:25:05,160 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2025-03-17 07:25:05,160 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-03-17 07:25:05,160 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-03-17 07:25:05,160 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-03-17 07:25:05,160 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-03-17 07:25:05,160 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2025-03-17 07:25:05,160 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2025-03-17 07:25:05,160 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-17 07:25:05,160 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-03-17 07:25:05,160 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-03-17 07:25:05,160 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-03-17 07:25:05,160 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-03-17 07:25:05,161 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2025-03-17 07:25:05,462 INFO L256 CfgBuilder]: Building ICFG [2025-03-17 07:25:05,464 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-17 07:25:05,508 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L6886: havoc #t~malloc557.base, #t~malloc557.offset; [2025-03-17 07:25:05,542 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L6256: havoc #t~mem472;havoc #t~short473;havoc #t~mem474;havoc #t~mem475;havoc #t~short476; [2025-03-17 07:25:05,544 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L266: havoc #t~nondet9; [2025-03-17 07:25:05,568 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L261: havoc #t~nondet4; [2025-03-17 07:25:05,685 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L6803: havoc #t~ret543#1.base, #t~ret543#1.offset; [2025-03-17 07:25:12,928 INFO L? ?]: Removed 79 outVars from TransFormulas that were not future-live. [2025-03-17 07:25:12,928 INFO L307 CfgBuilder]: Performing block encoding [2025-03-17 07:25:12,941 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-17 07:25:12,942 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-17 07:25:12,942 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 07:25:12 BoogieIcfgContainer [2025-03-17 07:25:12,943 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-17 07:25:12,945 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-17 07:25:12,945 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-17 07:25:12,949 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-17 07:25:12,949 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.03 07:25:02" (1/3) ... [2025-03-17 07:25:12,949 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@216a2850 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 07:25:12, skipping insertion in model container [2025-03-17 07:25:12,950 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:25:04" (2/3) ... [2025-03-17 07:25:12,950 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@216a2850 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 07:25:12, skipping insertion in model container [2025-03-17 07:25:12,950 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 07:25:12" (3/3) ... [2025-03-17 07:25:12,952 INFO L128 eAbstractionObserver]: Analyzing ICFG aws_string_destroy_secure_harness.i [2025-03-17 07:25:12,966 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-17 07:25:12,969 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG aws_string_destroy_secure_harness.i that has 18 procedures, 117 locations, 1 initial locations, 6 loop locations, and 1 error locations. [2025-03-17 07:25:13,015 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-17 07:25:13,024 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;@5482f063, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-17 07:25:13,025 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-03-17 07:25:13,029 INFO L276 IsEmpty]: Start isEmpty. Operand has 97 states, 63 states have (on average 1.2063492063492063) internal successors, (76), 64 states have internal predecessors, (76), 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) [2025-03-17 07:25:13,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2025-03-17 07:25:13,037 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 07:25:13,038 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] [2025-03-17 07:25:13,038 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-17 07:25:13,043 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 07:25:13,045 INFO L85 PathProgramCache]: Analyzing trace with hash -200502889, now seen corresponding path program 1 times [2025-03-17 07:25:13,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 07:25:13,052 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [319778560] [2025-03-17 07:25:13,052 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 07:25:13,053 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 07:26:24,393 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 60 statements into 1 equivalence classes. [2025-03-17 07:26:25,024 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 60 of 60 statements. [2025-03-17 07:26:25,024 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 07:26:25,024 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 07:26:25,960 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2025-03-17 07:26:25,960 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 07:26:25,961 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [319778560] [2025-03-17 07:26:25,962 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [319778560] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 07:26:25,964 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [73161709] [2025-03-17 07:26:25,964 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 07:26:25,964 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 07:26:25,964 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 07:26:25,969 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 07:26:25,971 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process