./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 798a7b37 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/aws-c-common/aws_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-?-798a7b3-m [2025-03-04 03:06:30,646 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-04 03:06:30,701 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2025-03-04 03:06:30,706 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-04 03:06:30,709 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-04 03:06:30,728 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-04 03:06:30,729 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-04 03:06:30,729 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-04 03:06:30,729 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-04 03:06:30,729 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-04 03:06:30,729 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-04 03:06:30,729 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-04 03:06:30,730 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-04 03:06:30,730 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-04 03:06:30,730 INFO L153 SettingsManager]: * Use SBE=true [2025-03-04 03:06:30,730 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-04 03:06:30,730 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-04 03:06:30,730 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-04 03:06:30,730 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-04 03:06:30,730 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-04 03:06:30,730 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-04 03:06:30,731 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-04 03:06:30,731 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-04 03:06:30,731 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-04 03:06:30,731 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-04 03:06:30,731 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-04 03:06:30,731 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-04 03:06:30,731 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-04 03:06:30,731 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-04 03:06:30,731 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 03:06:30,731 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-04 03:06:30,731 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-04 03:06:30,732 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-04 03:06:30,732 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-04 03:06:30,732 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-04 03:06:30,732 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-04 03:06:30,732 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-04 03:06:30,732 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-04 03:06:30,732 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-04 03:06:30,732 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-04 03:06:30,732 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 [2025-03-04 03:06:30,916 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-04 03:06:30,922 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-04 03:06:30,923 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-04 03:06:30,924 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-04 03:06:30,924 INFO L274 PluginConnector]: CDTParser initialized [2025-03-04 03:06:30,924 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_string_destroy_secure_harness.i [2025-03-04 03:06:32,005 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b5a237dcb/5a89d0ef3e8f462b9a5982ff14a2f2ac/FLAG876151891 [2025-03-04 03:06:32,505 INFO L384 CDTParser]: Found 1 translation units. [2025-03-04 03:06:32,506 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_string_destroy_secure_harness.i [2025-03-04 03:06:32,538 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b5a237dcb/5a89d0ef3e8f462b9a5982ff14a2f2ac/FLAG876151891 [2025-03-04 03:06:32,570 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b5a237dcb/5a89d0ef3e8f462b9a5982ff14a2f2ac [2025-03-04 03:06:32,573 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-04 03:06:32,574 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-04 03:06:32,576 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-04 03:06:32,576 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-04 03:06:32,580 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-04 03:06:32,580 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 03:06:32" (1/1) ... [2025-03-04 03:06:32,582 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@774af046 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:06:32, skipping insertion in model container [2025-03-04 03:06:32,582 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 03:06:32" (1/1) ... [2025-03-04 03:06:32,643 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-04 03:06:32,847 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] [2025-03-04 03:06:32,856 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] [2025-03-04 03:06:33,297 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:06:33,298 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:06:33,298 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:06:33,299 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:06:33,299 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:06:33,309 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:06:33,310 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:06:33,311 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:06:33,311 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:06:33,694 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:06:33,695 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:06:33,753 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 03:06:33,794 INFO L200 MainTranslator]: Completed pre-run [2025-03-04 03:06:33,807 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] [2025-03-04 03:06:33,808 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] [2025-03-04 03:06:33,838 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:06:33,839 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:06:33,839 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:06:33,840 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:06:33,840 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:06:33,882 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:06:33,882 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:06:33,883 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:06:33,883 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:06:33,959 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : "+r"(index)); [8253] [2025-03-04 03:06:33,960 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:06:33,960 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:06:33,970 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [8739-8750] [2025-03-04 03:06:33,994 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 03:06:34,161 INFO L204 MainTranslator]: Completed translation [2025-03-04 03:06:34,162 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:06:34 WrapperNode [2025-03-04 03:06:34,162 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-04 03:06:34,163 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-04 03:06:34,163 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-04 03:06:34,164 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-04 03:06:34,168 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:06:34" (1/1) ... [2025-03-04 03:06:34,228 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:06:34" (1/1) ... [2025-03-04 03:06:34,272 INFO L138 Inliner]: procedures = 682, calls = 2778, calls flagged for inlining = 60, calls inlined = 8, statements flattened = 818 [2025-03-04 03:06:34,273 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-04 03:06:34,273 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-04 03:06:34,273 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-04 03:06:34,274 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-04 03:06:34,279 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:06:34" (1/1) ... [2025-03-04 03:06:34,280 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:06:34" (1/1) ... [2025-03-04 03:06:34,286 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:06:34" (1/1) ... [2025-03-04 03:06:34,336 INFO L175 MemorySlicer]: Split 531 memory accesses to 6 slices as follows [2, 6, 257, 238, 16, 12]. 48 percent of accesses are in the largest equivalence class. The 29 initializations are split as follows [2, 5, 0, 6, 16, 0]. The 493 writes are split as follows [0, 0, 257, 232, 0, 4]. [2025-03-04 03:06:34,336 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:06:34" (1/1) ... [2025-03-04 03:06:34,336 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:06:34" (1/1) ... [2025-03-04 03:06:34,364 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:06:34" (1/1) ... [2025-03-04 03:06:34,369 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:06:34" (1/1) ... [2025-03-04 03:06:34,374 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:06:34" (1/1) ... [2025-03-04 03:06:34,380 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:06:34" (1/1) ... [2025-03-04 03:06:34,389 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-04 03:06:34,390 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-04 03:06:34,390 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-04 03:06:34,390 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-04 03:06:34,391 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:06:34" (1/1) ... [2025-03-04 03:06:34,395 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 03:06:34,422 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 03:06:34,436 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-03-04 03:06:34,438 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-03-04 03:06:34,456 INFO L130 BoogieDeclarations]: Found specification of procedure aws_string_is_valid [2025-03-04 03:06:34,456 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_string_is_valid [2025-03-04 03:06:34,456 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_string_is_allocated_bounded_length [2025-03-04 03:06:34,456 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_string_is_allocated_bounded_length [2025-03-04 03:06:34,457 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-03-04 03:06:34,457 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2025-03-04 03:06:34,457 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2025-03-04 03:06:34,457 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2025-03-04 03:06:34,457 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2025-03-04 03:06:34,457 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2025-03-04 03:06:34,457 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2025-03-04 03:06:34,457 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2025-03-04 03:06:34,457 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2025-03-04 03:06:34,457 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-03-04 03:06:34,457 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-03-04 03:06:34,457 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-03-04 03:06:34,457 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-03-04 03:06:34,457 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2025-03-04 03:06:34,457 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2025-03-04 03:06:34,457 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-03-04 03:06:34,457 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-03-04 03:06:34,457 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-03-04 03:06:34,457 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-04 03:06:34,457 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-03-04 03:06:34,457 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-03-04 03:06:34,457 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-03-04 03:06:34,457 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2025-03-04 03:06:34,457 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2025-03-04 03:06:34,457 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2025-03-04 03:06:34,457 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-04 03:06:34,457 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-04 03:06:34,457 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2025-03-04 03:06:34,457 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2025-03-04 03:06:34,457 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2025-03-04 03:06:34,457 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2025-03-04 03:06:34,457 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2025-03-04 03:06:34,457 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2025-03-04 03:06:34,457 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2025-03-04 03:06:34,457 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2025-03-04 03:06:34,458 INFO L130 BoogieDeclarations]: Found specification of procedure aws_secure_zero [2025-03-04 03:06:34,458 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_secure_zero [2025-03-04 03:06:34,458 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mem_release [2025-03-04 03:06:34,458 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mem_release [2025-03-04 03:06:34,458 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2025-03-04 03:06:34,458 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2025-03-04 03:06:34,458 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2025-03-04 03:06:34,458 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#3 [2025-03-04 03:06:34,458 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#4 [2025-03-04 03:06:34,458 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#5 [2025-03-04 03:06:34,458 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2025-03-04 03:06:34,458 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2025-03-04 03:06:34,458 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2025-03-04 03:06:34,458 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#3 [2025-03-04 03:06:34,458 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#4 [2025-03-04 03:06:34,458 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#5 [2025-03-04 03:06:34,458 INFO L130 BoogieDeclarations]: Found specification of procedure aws_string_bytes [2025-03-04 03:06:34,458 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_string_bytes [2025-03-04 03:06:34,458 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-03-04 03:06:34,458 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-03-04 03:06:34,458 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-03-04 03:06:34,458 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-03-04 03:06:34,458 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-03-04 03:06:34,458 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2025-03-04 03:06:34,458 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2025-03-04 03:06:34,458 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2025-03-04 03:06:34,458 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2025-03-04 03:06:34,458 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2025-03-04 03:06:34,458 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2025-03-04 03:06:34,458 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2025-03-04 03:06:34,460 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2025-03-04 03:06:34,461 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2025-03-04 03:06:34,461 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2025-03-04 03:06:34,461 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2025-03-04 03:06:34,461 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2025-03-04 03:06:34,461 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2025-03-04 03:06:34,461 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-03-04 03:06:34,461 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-03-04 03:06:34,461 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-03-04 03:06:34,461 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-03-04 03:06:34,461 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2025-03-04 03:06:34,461 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2025-03-04 03:06:34,462 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-04 03:06:34,462 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-03-04 03:06:34,462 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-03-04 03:06:34,462 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-03-04 03:06:34,462 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-03-04 03:06:34,462 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2025-03-04 03:06:34,667 INFO L256 CfgBuilder]: Building ICFG [2025-03-04 03:06:34,669 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-04 03:06:34,694 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L6886: havoc #t~malloc557.base, #t~malloc557.offset; [2025-03-04 03:06:34,716 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L6256: havoc #t~mem472;havoc #t~short473;havoc #t~mem474;havoc #t~mem475;havoc #t~short476; [2025-03-04 03:06:34,718 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L266: havoc #t~nondet9; [2025-03-04 03:06:34,729 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L261: havoc #t~nondet4; [2025-03-04 03:06:34,830 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L6803: havoc #t~ret543#1.base, #t~ret543#1.offset; [2025-03-04 03:06:41,338 INFO L? ?]: Removed 86 outVars from TransFormulas that were not future-live. [2025-03-04 03:06:41,339 INFO L307 CfgBuilder]: Performing block encoding [2025-03-04 03:06:41,347 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-04 03:06:41,347 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-04 03:06:41,347 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 03:06:41 BoogieIcfgContainer [2025-03-04 03:06:41,348 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-04 03:06:41,349 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-04 03:06:41,349 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-04 03:06:41,352 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-04 03:06:41,352 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.03 03:06:32" (1/3) ... [2025-03-04 03:06:41,353 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e047c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 03:06:41, skipping insertion in model container [2025-03-04 03:06:41,353 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:06:34" (2/3) ... [2025-03-04 03:06:41,353 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e047c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 03:06:41, skipping insertion in model container [2025-03-04 03:06:41,353 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 03:06:41" (3/3) ... [2025-03-04 03:06:41,354 INFO L128 eAbstractionObserver]: Analyzing ICFG aws_string_destroy_secure_harness.i [2025-03-04 03:06:41,363 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-04 03:06:41,365 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. [2025-03-04 03:06:41,403 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-04 03:06:41,410 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;@79296987, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-04 03:06:41,410 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-03-04 03:06:41,413 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) [2025-03-04 03:06:41,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2025-03-04 03:06:41,419 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 03:06:41,420 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] [2025-03-04 03:06:41,420 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-04 03:06:41,424 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 03:06:41,424 INFO L85 PathProgramCache]: Analyzing trace with hash 2022999115, now seen corresponding path program 1 times [2025-03-04 03:06:41,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 03:06:41,429 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1537308128] [2025-03-04 03:06:41,430 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 03:06:41,431 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 03:07:45,952 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 63 statements into 1 equivalence classes. [2025-03-04 03:07:46,464 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 63 of 63 statements. [2025-03-04 03:07:46,464 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 03:07:46,466 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 03:07:47,106 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2025-03-04 03:07:47,108 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 03:07:47,108 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1537308128] [2025-03-04 03:07:47,109 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1537308128] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 03:07:47,109 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1527428115] [2025-03-04 03:07:47,109 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 03:07:47,109 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 03:07:47,110 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 03:07:47,112 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 03:07:47,172 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process