./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 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_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-?-8fc3dc6-m [2025-03-17 07:25:02,082 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-17 07:25:02,141 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2025-03-17 07:25:02,148 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-17 07:25:02,148 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-17 07:25:02,165 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-17 07:25:02,165 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-17 07:25:02,165 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-17 07:25:02,166 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-17 07:25:02,169 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-17 07:25:02,169 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-17 07:25:02,169 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-17 07:25:02,170 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-17 07:25:02,170 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-17 07:25:02,170 INFO L153 SettingsManager]: * Use SBE=true [2025-03-17 07:25:02,170 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-17 07:25:02,170 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-17 07:25:02,170 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-17 07:25:02,170 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-17 07:25:02,170 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-17 07:25:02,170 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-17 07:25:02,170 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-17 07:25:02,170 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-17 07:25:02,170 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-17 07:25:02,170 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-17 07:25:02,170 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-17 07:25:02,170 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-17 07:25:02,170 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-17 07:25:02,171 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-17 07:25:02,171 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-17 07:25:02,171 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-17 07:25:02,171 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-17 07:25:02,171 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-17 07:25:02,171 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-17 07:25:02,171 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-17 07:25:02,171 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-17 07:25:02,171 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-17 07:25:02,171 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-17 07:25:02,171 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-17 07:25:02,171 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-17 07:25:02,171 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 [2025-03-17 07:25:02,409 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-17 07:25:02,415 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-17 07:25:02,419 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-17 07:25:02,420 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-17 07:25:02,420 INFO L274 PluginConnector]: CDTParser initialized [2025-03-17 07:25:02,421 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_string_destroy_secure_harness_negated.i [2025-03-17 07:25:03,524 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ea376fac2/ce58709a03044229ba7e5a5170bdb2b0/FLAG3dfb2108e [2025-03-17 07:25:04,017 INFO L384 CDTParser]: Found 1 translation units. [2025-03-17 07:25:04,019 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_string_destroy_secure_harness_negated.i [2025-03-17 07:25:04,051 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ea376fac2/ce58709a03044229ba7e5a5170bdb2b0/FLAG3dfb2108e [2025-03-17 07:25:04,092 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ea376fac2/ce58709a03044229ba7e5a5170bdb2b0 [2025-03-17 07:25:04,095 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-17 07:25:04,096 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-17 07:25:04,098 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-17 07:25:04,098 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-17 07:25:04,101 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-17 07:25:04,102 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 07:25:04" (1/1) ... [2025-03-17 07:25:04,104 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@587c0e03 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:25:04, skipping insertion in model container [2025-03-17 07:25:04,104 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 07:25:04" (1/1) ... [2025-03-17 07:25:04,195 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-17 07:25:04,366 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] [2025-03-17 07:25:04,373 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] [2025-03-17 07:25:04,830 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:25:04,831 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:25:04,831 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:25:04,831 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:25:04,832 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:25:04,840 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:25:04,841 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:25:04,842 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:25:04,842 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:25:05,252 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:25:05,252 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:25:05,377 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 07:25:05,424 INFO L200 MainTranslator]: Completed pre-run [2025-03-17 07:25:05,437 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] [2025-03-17 07:25:05,438 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] [2025-03-17 07:25:05,476 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:25:05,477 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:25:05,477 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:25:05,479 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:25:05,479 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:25:05,483 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:25:05,483 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:25:05,484 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:25:05,485 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:25:05,567 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : "+r"(index)); [8221] [2025-03-17 07:25:05,569 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:25:05,569 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:25:05,579 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [8707-8718] [2025-03-17 07:25:05,600 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 07:25:05,750 INFO L204 MainTranslator]: Completed translation [2025-03-17 07:25:05,751 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:25:05 WrapperNode [2025-03-17 07:25:05,751 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-17 07:25:05,752 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-17 07:25:05,752 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-17 07:25:05,752 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-17 07:25:05,756 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:25:05" (1/1) ... [2025-03-17 07:25:05,817 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:25:05" (1/1) ... [2025-03-17 07:25:05,869 INFO L138 Inliner]: procedures = 682, calls = 2778, calls flagged for inlining = 60, calls inlined = 8, statements flattened = 818 [2025-03-17 07:25:05,870 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-17 07:25:05,870 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-17 07:25:05,870 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-17 07:25:05,870 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-17 07:25:05,878 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:25:05" (1/1) ... [2025-03-17 07:25:05,878 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:25:05" (1/1) ... [2025-03-17 07:25:05,883 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:25:05" (1/1) ... [2025-03-17 07:25:05,938 INFO L175 MemorySlicer]: Split 531 memory accesses to 6 slices as follows [2, 257, 238, 12, 16, 6]. 48 percent of accesses are in the largest equivalence class. The 29 initializations are split as follows [2, 0, 6, 0, 16, 5]. The 493 writes are split as follows [0, 257, 232, 4, 0, 0]. [2025-03-17 07:25:05,938 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:25:05" (1/1) ... [2025-03-17 07:25:05,939 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:25:05" (1/1) ... [2025-03-17 07:25:05,969 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:25:05" (1/1) ... [2025-03-17 07:25:05,975 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:25:05" (1/1) ... [2025-03-17 07:25:05,984 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:25:05" (1/1) ... [2025-03-17 07:25:05,990 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:25:05" (1/1) ... [2025-03-17 07:25:05,999 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-17 07:25:06,003 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-17 07:25:06,003 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-17 07:25:06,003 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-17 07:25:06,004 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:25:05" (1/1) ... [2025-03-17 07:25:06,008 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-17 07:25:06,017 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 07:25:06,032 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 07:25:06,035 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 07:25:06,052 INFO L130 BoogieDeclarations]: Found specification of procedure aws_string_is_valid [2025-03-17 07:25:06,052 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_string_is_valid [2025-03-17 07:25:06,053 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_string_is_allocated_bounded_length [2025-03-17 07:25:06,053 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_string_is_allocated_bounded_length [2025-03-17 07:25:06,053 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-03-17 07:25:06,053 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2025-03-17 07:25:06,053 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2025-03-17 07:25:06,053 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2025-03-17 07:25:06,053 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2025-03-17 07:25:06,053 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2025-03-17 07:25:06,054 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2025-03-17 07:25:06,054 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2025-03-17 07:25:06,054 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2025-03-17 07:25:06,054 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-03-17 07:25:06,054 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-03-17 07:25:06,054 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-03-17 07:25:06,054 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-03-17 07:25:06,054 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2025-03-17 07:25:06,054 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2025-03-17 07:25:06,054 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-03-17 07:25:06,054 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-03-17 07:25:06,054 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-03-17 07:25:06,054 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-17 07:25:06,054 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-03-17 07:25:06,055 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-03-17 07:25:06,055 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-03-17 07:25:06,055 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2025-03-17 07:25:06,055 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2025-03-17 07:25:06,055 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2025-03-17 07:25:06,055 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-17 07:25:06,055 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-17 07:25:06,055 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2025-03-17 07:25:06,056 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2025-03-17 07:25:06,056 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2025-03-17 07:25:06,056 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2025-03-17 07:25:06,056 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2025-03-17 07:25:06,056 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2025-03-17 07:25:06,056 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2025-03-17 07:25:06,056 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2025-03-17 07:25:06,056 INFO L130 BoogieDeclarations]: Found specification of procedure aws_secure_zero [2025-03-17 07:25:06,056 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_secure_zero [2025-03-17 07:25:06,057 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mem_release [2025-03-17 07:25:06,058 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mem_release [2025-03-17 07:25:06,058 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2025-03-17 07:25:06,058 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2025-03-17 07:25:06,058 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2025-03-17 07:25:06,058 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#3 [2025-03-17 07:25:06,058 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#4 [2025-03-17 07:25:06,058 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#5 [2025-03-17 07:25:06,058 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2025-03-17 07:25:06,058 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2025-03-17 07:25:06,058 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2025-03-17 07:25:06,058 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#3 [2025-03-17 07:25:06,058 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#4 [2025-03-17 07:25:06,058 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#5 [2025-03-17 07:25:06,058 INFO L130 BoogieDeclarations]: Found specification of procedure aws_string_bytes [2025-03-17 07:25:06,058 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_string_bytes [2025-03-17 07:25:06,058 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-03-17 07:25:06,058 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-03-17 07:25:06,058 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-03-17 07:25:06,058 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-03-17 07:25:06,058 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-03-17 07:25:06,058 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2025-03-17 07:25:06,058 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2025-03-17 07:25:06,058 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2025-03-17 07:25:06,058 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2025-03-17 07:25:06,058 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2025-03-17 07:25:06,058 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2025-03-17 07:25:06,058 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2025-03-17 07:25:06,058 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2025-03-17 07:25:06,059 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2025-03-17 07:25:06,059 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2025-03-17 07:25:06,059 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2025-03-17 07:25:06,059 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2025-03-17 07:25:06,059 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2025-03-17 07:25:06,059 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-03-17 07:25:06,059 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-03-17 07:25:06,059 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-03-17 07:25:06,059 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-03-17 07:25:06,059 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2025-03-17 07:25:06,059 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2025-03-17 07:25:06,059 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-17 07:25:06,059 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-03-17 07:25:06,059 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-03-17 07:25:06,059 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-03-17 07:25:06,059 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-03-17 07:25:06,059 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2025-03-17 07:25:06,349 INFO L256 CfgBuilder]: Building ICFG [2025-03-17 07:25:06,351 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-17 07:25:06,393 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L6874: havoc #t~malloc557.base, #t~malloc557.offset; [2025-03-17 07:25:06,415 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L6244: havoc #t~mem472;havoc #t~short473;havoc #t~mem474;havoc #t~mem475;havoc #t~short476; [2025-03-17 07:25:06,418 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L266: havoc #t~nondet9; [2025-03-17 07:25:06,440 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L261: havoc #t~nondet4; [2025-03-17 07:25:06,564 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L6791: havoc #t~ret543#1.base, #t~ret543#1.offset; [2025-03-17 07:25:13,240 INFO L? ?]: Removed 79 outVars from TransFormulas that were not future-live. [2025-03-17 07:25:13,240 INFO L307 CfgBuilder]: Performing block encoding [2025-03-17 07:25:13,250 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-17 07:25:13,250 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-17 07:25:13,250 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 07:25:13 BoogieIcfgContainer [2025-03-17 07:25:13,251 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-17 07:25:13,254 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-17 07:25:13,254 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-17 07:25:13,257 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-17 07:25:13,257 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.03 07:25:04" (1/3) ... [2025-03-17 07:25:13,258 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3490a1de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 07:25:13, skipping insertion in model container [2025-03-17 07:25:13,258 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:25:05" (2/3) ... [2025-03-17 07:25:13,258 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3490a1de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 07:25:13, skipping insertion in model container [2025-03-17 07:25:13,258 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 07:25:13" (3/3) ... [2025-03-17 07:25:13,259 INFO L128 eAbstractionObserver]: Analyzing ICFG aws_string_destroy_secure_harness_negated.i [2025-03-17 07:25:13,270 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-17 07:25:13,272 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG aws_string_destroy_secure_harness_negated.i that has 18 procedures, 117 locations, 1 initial locations, 6 loop locations, and 1 error locations. [2025-03-17 07:25:13,308 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-17 07:25:13,316 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;@666ffd1d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-17 07:25:13,316 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-03-17 07:25:13,318 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 07:25:13,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2025-03-17 07:25:13,323 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 07:25:13,324 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 07:25:13,324 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-17 07:25:13,331 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 07:25:13,331 INFO L85 PathProgramCache]: Analyzing trace with hash -200502889, now seen corresponding path program 1 times [2025-03-17 07:25:13,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 07:25:13,337 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1693985273] [2025-03-17 07:25:13,337 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 07:25:13,337 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 07:26:19,146 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 60 statements into 1 equivalence classes. [2025-03-17 07:26:19,693 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 60 of 60 statements. [2025-03-17 07:26:19,693 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 07:26:19,693 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 07:26:20,505 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 07:26:20,506 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 07:26:20,506 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1693985273] [2025-03-17 07:26:20,507 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1693985273] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 07:26:20,508 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1529045975] [2025-03-17 07:26:20,508 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 07:26:20,508 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 07:26:20,508 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 07:26:20,510 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 07:26:20,512 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process