./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_string_destroy_secure_harness_negated.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_negated.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 2c2f07b3e0aa6972fd7ec3621a91e2c0b72d907bfa5004c1888c101ab8ad4836 --- Real Ultimate output --- This is Ultimate 0.3.0-?-798a7b3-m [2025-03-04 03:06:30,950 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-04 03:06:31,004 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2025-03-04 03:06:31,009 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-04 03:06:31,009 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-04 03:06:31,022 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-04 03:06:31,023 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-04 03:06:31,023 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-04 03:06:31,023 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-04 03:06:31,024 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-04 03:06:31,024 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-04 03:06:31,024 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-04 03:06:31,024 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-04 03:06:31,024 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-04 03:06:31,024 INFO L153 SettingsManager]: * Use SBE=true [2025-03-04 03:06:31,024 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-04 03:06:31,024 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-04 03:06:31,024 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-04 03:06:31,024 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-04 03:06:31,025 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-04 03:06:31,025 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-04 03:06:31,025 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-04 03:06:31,025 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-04 03:06:31,025 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-04 03:06:31,025 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-04 03:06:31,025 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-04 03:06:31,025 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-04 03:06:31,025 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-04 03:06:31,025 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-04 03:06:31,026 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 03:06:31,026 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-04 03:06:31,026 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-04 03:06:31,026 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-04 03:06:31,026 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-04 03:06:31,026 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-04 03:06:31,026 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-04 03:06:31,026 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-04 03:06:31,026 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-04 03:06:31,026 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-04 03:06:31,026 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-04 03:06:31,027 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 -> 2c2f07b3e0aa6972fd7ec3621a91e2c0b72d907bfa5004c1888c101ab8ad4836 [2025-03-04 03:06:31,242 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-04 03:06:31,247 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-04 03:06:31,250 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-04 03:06:31,251 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-04 03:06:31,251 INFO L274 PluginConnector]: CDTParser initialized [2025-03-04 03:06:31,252 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_string_destroy_secure_harness_negated.i [2025-03-04 03:06:32,328 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ec5689598/e8fdad0c87f54597ae4dff703917c271/FLAGa514b259a [2025-03-04 03:06:32,729 INFO L384 CDTParser]: Found 1 translation units. [2025-03-04 03:06:32,730 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_string_destroy_secure_harness_negated.i [2025-03-04 03:06:32,758 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ec5689598/e8fdad0c87f54597ae4dff703917c271/FLAGa514b259a [2025-03-04 03:06:32,887 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ec5689598/e8fdad0c87f54597ae4dff703917c271 [2025-03-04 03:06:32,889 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-04 03:06:32,890 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-04 03:06:32,893 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-04 03:06:32,893 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-04 03:06:32,896 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-04 03:06:32,896 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 03:06:32" (1/1) ... [2025-03-04 03:06:32,898 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d250089 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 03:06:32,898 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 03:06:32" (1/1) ... [2025-03-04 03:06:32,959 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-04 03:06:33,128 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_negated.i[4499,4512] [2025-03-04 03:06:33,135 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_negated.i[4559,4572] [2025-03-04 03:06:33,575 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:06:33,575 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:06:33,576 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:06:33,576 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:06:33,577 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:06:33,587 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:06:33,590 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:06:33,591 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:06:33,591 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:06:33,980 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:06:33,980 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:06:34,075 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 03:06:34,120 INFO L200 MainTranslator]: Completed pre-run [2025-03-04 03:06:34,134 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_negated.i[4499,4512] [2025-03-04 03:06:34,135 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_negated.i[4559,4572] [2025-03-04 03:06:34,174 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:06:34,175 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:06:34,175 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:06:34,176 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:06:34,177 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:06:34,181 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:06:34,181 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:06:34,182 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:06:34,183 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:06:34,271 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : "+r"(index)); [8221] [2025-03-04 03:06:34,273 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:06:34,273 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:06:34,282 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [8707-8718] [2025-03-04 03:06:34,303 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 03:06:34,483 INFO L204 MainTranslator]: Completed translation [2025-03-04 03:06:34,483 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:06:34 WrapperNode [2025-03-04 03:06:34,484 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-04 03:06:34,485 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-04 03:06:34,485 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-04 03:06:34,485 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-04 03:06:34,489 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 03:06:34,543 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 03:06:34,599 INFO L138 Inliner]: procedures = 682, calls = 2778, calls flagged for inlining = 60, calls inlined = 8, statements flattened = 818 [2025-03-04 03:06:34,600 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-04 03:06:34,600 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-04 03:06:34,600 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-04 03:06:34,600 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-04 03:06:34,607 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 03:06:34,607 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 03:06:34,614 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 03:06:34,669 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]. [2025-03-04 03:06:34,670 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 03:06:34,670 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 03:06:34,697 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 03:06:34,700 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 03:06:34,708 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 03:06:34,713 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 03:06:34,721 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-04 03:06:34,724 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-04 03:06:34,724 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-04 03:06:34,724 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-04 03:06:34,725 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 03:06:34,729 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 03:06:34,739 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 03:06:34,750 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 03:06:34,755 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 03:06:34,769 INFO L130 BoogieDeclarations]: Found specification of procedure aws_string_is_valid [2025-03-04 03:06:34,769 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_string_is_valid [2025-03-04 03:06:34,769 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_string_is_allocated_bounded_length [2025-03-04 03:06:34,769 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_string_is_allocated_bounded_length [2025-03-04 03:06:34,769 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-03-04 03:06:34,770 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2025-03-04 03:06:34,770 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2025-03-04 03:06:34,770 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2025-03-04 03:06:34,770 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2025-03-04 03:06:34,770 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2025-03-04 03:06:34,770 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2025-03-04 03:06:34,770 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2025-03-04 03:06:34,770 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2025-03-04 03:06:34,770 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-03-04 03:06:34,770 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-03-04 03:06:34,771 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-03-04 03:06:34,771 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-03-04 03:06:34,771 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2025-03-04 03:06:34,772 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2025-03-04 03:06:34,772 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-03-04 03:06:34,772 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-03-04 03:06:34,772 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-03-04 03:06:34,772 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-04 03:06:34,772 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-03-04 03:06:34,772 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-03-04 03:06:34,772 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-03-04 03:06:34,772 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2025-03-04 03:06:34,772 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2025-03-04 03:06:34,772 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2025-03-04 03:06:34,772 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-04 03:06:34,772 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-04 03:06:34,772 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2025-03-04 03:06:34,772 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2025-03-04 03:06:34,772 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2025-03-04 03:06:34,772 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2025-03-04 03:06:34,772 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2025-03-04 03:06:34,772 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2025-03-04 03:06:34,772 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2025-03-04 03:06:34,772 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2025-03-04 03:06:34,772 INFO L130 BoogieDeclarations]: Found specification of procedure aws_secure_zero [2025-03-04 03:06:34,772 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_secure_zero [2025-03-04 03:06:34,772 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mem_release [2025-03-04 03:06:34,772 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mem_release [2025-03-04 03:06:34,772 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2025-03-04 03:06:34,772 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2025-03-04 03:06:34,772 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2025-03-04 03:06:34,772 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#3 [2025-03-04 03:06:34,772 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#4 [2025-03-04 03:06:34,772 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#5 [2025-03-04 03:06:34,772 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2025-03-04 03:06:34,772 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2025-03-04 03:06:34,772 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2025-03-04 03:06:34,772 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#3 [2025-03-04 03:06:34,772 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#4 [2025-03-04 03:06:34,773 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#5 [2025-03-04 03:06:34,773 INFO L130 BoogieDeclarations]: Found specification of procedure aws_string_bytes [2025-03-04 03:06:34,773 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_string_bytes [2025-03-04 03:06:34,773 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-03-04 03:06:34,773 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-03-04 03:06:34,773 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-03-04 03:06:34,773 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-03-04 03:06:34,773 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-03-04 03:06:34,773 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2025-03-04 03:06:34,773 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2025-03-04 03:06:34,773 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2025-03-04 03:06:34,773 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2025-03-04 03:06:34,773 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2025-03-04 03:06:34,773 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2025-03-04 03:06:34,773 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2025-03-04 03:06:34,773 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2025-03-04 03:06:34,773 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2025-03-04 03:06:34,773 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2025-03-04 03:06:34,773 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2025-03-04 03:06:34,773 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2025-03-04 03:06:34,773 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2025-03-04 03:06:34,773 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-03-04 03:06:34,773 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-03-04 03:06:34,773 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-03-04 03:06:34,773 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-03-04 03:06:34,773 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2025-03-04 03:06:34,773 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2025-03-04 03:06:34,773 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-04 03:06:34,773 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-03-04 03:06:34,773 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-03-04 03:06:34,773 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-03-04 03:06:34,773 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-03-04 03:06:34,773 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2025-03-04 03:06:35,007 INFO L256 CfgBuilder]: Building ICFG [2025-03-04 03:06:35,009 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-04 03:06:35,036 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L6874: havoc #t~malloc557.base, #t~malloc557.offset; [2025-03-04 03:06:35,057 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L6244: havoc #t~mem472;havoc #t~short473;havoc #t~mem474;havoc #t~mem475;havoc #t~short476; [2025-03-04 03:06:35,059 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L266: havoc #t~nondet9; [2025-03-04 03:06:35,073 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L261: havoc #t~nondet4; [2025-03-04 03:06:35,184 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L6791: havoc #t~ret543#1.base, #t~ret543#1.offset; [2025-03-04 03:06:41,691 INFO L? ?]: Removed 86 outVars from TransFormulas that were not future-live. [2025-03-04 03:06:41,692 INFO L307 CfgBuilder]: Performing block encoding [2025-03-04 03:06:41,701 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-04 03:06:41,701 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-04 03:06:41,702 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 03:06:41 BoogieIcfgContainer [2025-03-04 03:06:41,702 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-04 03:06:41,703 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-04 03:06:41,703 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-04 03:06:41,706 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-04 03:06:41,706 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.03 03:06:32" (1/3) ... [2025-03-04 03:06:41,707 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7fd40abb 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 03:06:41,707 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 03:06:41,707 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7fd40abb 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 03:06:41,707 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 03:06:41,708 INFO L128 eAbstractionObserver]: Analyzing ICFG aws_string_destroy_secure_harness_negated.i [2025-03-04 03:06:41,718 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-04 03:06:41,721 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG aws_string_destroy_secure_harness_negated.i that has 18 procedures, 122 locations, 1 initial locations, 6 loop locations, and 1 error locations. [2025-03-04 03:06:41,761 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-04 03:06:41,770 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;@7a18fc96, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-04 03:06:41,771 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-03-04 03:06:41,773 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 03:06:41,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2025-03-04 03:06:41,780 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 03:06:41,781 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 03:06:41,781 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-04 03:06:41,784 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 03:06:41,784 INFO L85 PathProgramCache]: Analyzing trace with hash 2022999115, now seen corresponding path program 1 times [2025-03-04 03:06:41,789 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 03:06:41,789 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [781010837] [2025-03-04 03:06:41,789 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 03:06:41,789 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 03:07:46,101 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 63 statements into 1 equivalence classes. [2025-03-04 03:07:46,576 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 63 of 63 statements. [2025-03-04 03:07:46,576 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 03:07:46,576 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 03:07:47,266 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 03:07:47,266 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 03:07:47,267 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [781010837] [2025-03-04 03:07:47,267 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [781010837] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 03:07:47,268 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1258243307] [2025-03-04 03:07:47,268 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 03:07:47,268 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 03:07:47,268 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 03:07:47,270 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 03:07:47,272 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process