./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_string_compare_harness_negated.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 48c9605d Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/aws-c-common/aws_string_compare_harness_negated.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/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 965d656958c5277ff7b46967a72c2c81e4c2c563a1b6d02990446bd426a67de4 --- Real Ultimate output --- This is Ultimate 0.3.0-?-48c9605-m [2025-02-08 01:59:54,468 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-08 01:59:54,506 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2025-02-08 01:59:54,509 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-08 01:59:54,510 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-08 01:59:54,534 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-08 01:59:54,534 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-08 01:59:54,534 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-08 01:59:54,534 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-08 01:59:54,534 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-08 01:59:54,535 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-08 01:59:54,535 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-08 01:59:54,535 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-08 01:59:54,535 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-08 01:59:54,535 INFO L153 SettingsManager]: * Use SBE=true [2025-02-08 01:59:54,535 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-08 01:59:54,535 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-08 01:59:54,535 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-08 01:59:54,535 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-08 01:59:54,535 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-08 01:59:54,535 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-08 01:59:54,535 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-08 01:59:54,537 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-08 01:59:54,537 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-08 01:59:54,537 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-08 01:59:54,537 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-08 01:59:54,537 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-08 01:59:54,537 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-08 01:59:54,538 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-08 01:59:54,538 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 01:59:54,538 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-08 01:59:54,538 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-08 01:59:54,538 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-08 01:59:54,538 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-08 01:59:54,538 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-08 01:59:54,538 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-08 01:59:54,538 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-08 01:59:54,538 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-08 01:59:54,538 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-08 01:59:54,538 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-08 01:59:54,538 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-jdk21/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 -> 965d656958c5277ff7b46967a72c2c81e4c2c563a1b6d02990446bd426a67de4 [2025-02-08 01:59:54,740 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-08 01:59:54,745 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-08 01:59:54,747 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-08 01:59:54,747 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-08 01:59:54,747 INFO L274 PluginConnector]: CDTParser initialized [2025-02-08 01:59:54,748 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_string_compare_harness_negated.i [2025-02-08 01:59:55,853 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/ced0ccfc9/87b9752edd9945e890d35cd5b0a29e97/FLAGf0329614a [2025-02-08 01:59:56,278 INFO L384 CDTParser]: Found 1 translation units. [2025-02-08 01:59:56,278 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_string_compare_harness_negated.i [2025-02-08 01:59:56,301 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/ced0ccfc9/87b9752edd9945e890d35cd5b0a29e97/FLAGf0329614a [2025-02-08 01:59:56,311 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/ced0ccfc9/87b9752edd9945e890d35cd5b0a29e97 [2025-02-08 01:59:56,313 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-08 01:59:56,314 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-08 01:59:56,315 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-08 01:59:56,315 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-08 01:59:56,318 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-08 01:59:56,318 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 01:59:56" (1/1) ... [2025-02-08 01:59:56,319 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@49ec6b76 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:59:56, skipping insertion in model container [2025-02-08 01:59:56,319 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 01:59:56" (1/1) ... [2025-02-08 01:59:56,387 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-08 01:59:56,604 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_string_compare_harness_negated.i[4492,4505] [2025-02-08 01:59:56,611 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_string_compare_harness_negated.i[4552,4565] [2025-02-08 01:59:57,075 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:59:57,075 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:59:57,078 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:59:57,079 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:59:57,079 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:59:57,089 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:59:57,090 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:59:57,094 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:59:57,094 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:59:57,516 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:59:57,520 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:59:57,648 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 01:59:57,689 INFO L200 MainTranslator]: Completed pre-run [2025-02-08 01:59:57,703 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_string_compare_harness_negated.i[4492,4505] [2025-02-08 01:59:57,704 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_string_compare_harness_negated.i[4552,4565] [2025-02-08 01:59:57,738 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:59:57,738 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:59:57,738 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:59:57,739 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:59:57,739 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:59:57,743 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:59:57,745 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:59:57,745 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:59:57,746 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:59:57,829 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : "+r"(index)); [8221] [2025-02-08 01:59:57,830 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:59:57,831 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:59:57,840 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [8707-8718] [2025-02-08 01:59:57,862 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 01:59:58,032 INFO L204 MainTranslator]: Completed translation [2025-02-08 01:59:58,033 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:59:58 WrapperNode [2025-02-08 01:59:58,033 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-08 01:59:58,034 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-08 01:59:58,034 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-08 01:59:58,034 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-08 01:59:58,041 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:59:58" (1/1) ... [2025-02-08 01:59:58,094 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:59:58" (1/1) ... [2025-02-08 01:59:58,140 INFO L138 Inliner]: procedures = 682, calls = 2786, calls flagged for inlining = 57, calls inlined = 5, statements flattened = 823 [2025-02-08 01:59:58,140 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-08 01:59:58,141 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-08 01:59:58,141 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-08 01:59:58,141 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-08 01:59:58,152 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:59:58" (1/1) ... [2025-02-08 01:59:58,152 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:59:58" (1/1) ... [2025-02-08 01:59:58,157 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:59:58" (1/1) ... [2025-02-08 01:59:58,209 INFO L175 MemorySlicer]: Split 529 memory accesses to 6 slices as follows [2, 257, 238, 16, 5, 11]. 49 percent of accesses are in the largest equivalence class. The 29 initializations are split as follows [2, 0, 6, 16, 5, 0]. The 492 writes are split as follows [0, 257, 232, 0, 0, 3]. [2025-02-08 01:59:58,212 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:59:58" (1/1) ... [2025-02-08 01:59:58,213 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:59:58" (1/1) ... [2025-02-08 01:59:58,233 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:59:58" (1/1) ... [2025-02-08 01:59:58,235 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:59:58" (1/1) ... [2025-02-08 01:59:58,238 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:59:58" (1/1) ... [2025-02-08 01:59:58,240 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:59:58" (1/1) ... [2025-02-08 01:59:58,245 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-08 01:59:58,246 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-08 01:59:58,246 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-08 01:59:58,246 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-08 01:59:58,247 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:59:58" (1/1) ... [2025-02-08 01:59:58,251 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 01:59:58,261 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 01:59:58,271 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-02-08 01:59:58,276 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-02-08 01:59:58,293 INFO L130 BoogieDeclarations]: Found specification of procedure aws_string_is_valid [2025-02-08 01:59:58,293 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_string_is_valid [2025-02-08 01:59:58,293 INFO L130 BoogieDeclarations]: Found specification of procedure aws_string_compare [2025-02-08 01:59:58,293 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_string_compare [2025-02-08 01:59:58,293 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_string_is_allocated_bounded_length [2025-02-08 01:59:58,293 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_string_is_allocated_bounded_length [2025-02-08 01:59:58,293 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2025-02-08 01:59:58,293 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2025-02-08 01:59:58,293 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2025-02-08 01:59:58,293 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2025-02-08 01:59:58,293 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2025-02-08 01:59:58,293 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2025-02-08 01:59:58,293 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2025-02-08 01:59:58,293 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2025-02-08 01:59:58,293 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-02-08 01:59:58,293 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-02-08 01:59:58,293 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-02-08 01:59:58,294 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-02-08 01:59:58,294 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2025-02-08 01:59:58,294 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2025-02-08 01:59:58,294 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-02-08 01:59:58,294 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-02-08 01:59:58,294 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-02-08 01:59:58,294 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-08 01:59:58,294 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-02-08 01:59:58,294 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-02-08 01:59:58,294 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-02-08 01:59:58,294 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2025-02-08 01:59:58,294 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2025-02-08 01:59:58,294 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2025-02-08 01:59:58,294 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-08 01:59:58,294 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-08 01:59:58,294 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2025-02-08 01:59:58,294 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2025-02-08 01:59:58,294 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2025-02-08 01:59:58,294 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2025-02-08 01:59:58,294 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2025-02-08 01:59:58,294 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2025-02-08 01:59:58,294 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2025-02-08 01:59:58,294 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2025-02-08 01:59:58,294 INFO L130 BoogieDeclarations]: Found specification of procedure aws_string_bytes [2025-02-08 01:59:58,294 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_string_bytes [2025-02-08 01:59:58,294 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-02-08 01:59:58,294 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-02-08 01:59:58,294 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2025-02-08 01:59:58,297 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2025-02-08 01:59:58,297 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2025-02-08 01:59:58,297 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2025-02-08 01:59:58,297 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2025-02-08 01:59:58,297 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2025-02-08 01:59:58,297 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2025-02-08 01:59:58,297 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2025-02-08 01:59:58,297 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2025-02-08 01:59:58,297 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2025-02-08 01:59:58,297 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-02-08 01:59:58,297 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-02-08 01:59:58,297 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-02-08 01:59:58,297 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-02-08 01:59:58,297 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2025-02-08 01:59:58,297 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2025-02-08 01:59:58,298 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-08 01:59:58,298 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-02-08 01:59:58,298 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-02-08 01:59:58,298 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-02-08 01:59:58,299 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-02-08 01:59:58,299 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2025-02-08 01:59:58,522 INFO L257 CfgBuilder]: Building ICFG [2025-02-08 01:59:58,525 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-08 01:59:58,583 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L6874: havoc #t~malloc557.base, #t~malloc557.offset; [2025-02-08 01:59:58,605 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L6244: havoc #t~mem472;havoc #t~short473;havoc #t~mem474;havoc #t~mem475;havoc #t~short476; [2025-02-08 01:59:58,607 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L266: havoc #t~nondet9; [2025-02-08 01:59:58,614 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L261: havoc #t~nondet4; [2025-02-08 01:59:58,701 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L6791: havoc #t~ret543#1.base, #t~ret543#1.offset; [2025-02-08 02:00:05,524 INFO L? ?]: Removed 78 outVars from TransFormulas that were not future-live. [2025-02-08 02:00:05,524 INFO L308 CfgBuilder]: Performing block encoding [2025-02-08 02:00:05,534 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-08 02:00:05,534 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-08 02:00:05,534 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 02:00:05 BoogieIcfgContainer [2025-02-08 02:00:05,535 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-08 02:00:05,536 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-08 02:00:05,536 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-08 02:00:05,540 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-08 02:00:05,540 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.02 01:59:56" (1/3) ... [2025-02-08 02:00:05,541 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b02c0f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 02:00:05, skipping insertion in model container [2025-02-08 02:00:05,541 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:59:58" (2/3) ... [2025-02-08 02:00:05,541 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b02c0f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 02:00:05, skipping insertion in model container [2025-02-08 02:00:05,541 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 02:00:05" (3/3) ... [2025-02-08 02:00:05,542 INFO L128 eAbstractionObserver]: Analyzing ICFG aws_string_compare_harness_negated.i [2025-02-08 02:00:05,553 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-08 02:00:05,555 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG aws_string_compare_harness_negated.i that has 11 procedures, 118 locations, 1 initial locations, 0 loop locations, and 1 error locations. [2025-02-08 02:00:05,587 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-08 02:00:05,598 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;@3a9658c2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-08 02:00:05,598 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-02-08 02:00:05,602 INFO L276 IsEmpty]: Start isEmpty. Operand has 118 states, 73 states have (on average 1.2876712328767124) internal successors, (94), 74 states have internal predecessors, (94), 33 states have call successors, (33), 10 states have call predecessors, (33), 10 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) [2025-02-08 02:00:05,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2025-02-08 02:00:05,613 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 02:00:05,613 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 2, 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] [2025-02-08 02:00:05,614 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-08 02:00:05,616 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 02:00:05,617 INFO L85 PathProgramCache]: Analyzing trace with hash -89968007, now seen corresponding path program 1 times [2025-02-08 02:00:05,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 02:00:05,622 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1269958120] [2025-02-08 02:00:05,622 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 02:00:05,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 02:01:17,472 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 49 statements into 1 equivalence classes. [2025-02-08 02:01:17,992 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 49 of 49 statements. [2025-02-08 02:01:17,992 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 02:01:17,992 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 02:01:18,592 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2025-02-08 02:01:18,592 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 02:01:18,593 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1269958120] [2025-02-08 02:01:18,593 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1269958120] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 02:01:18,593 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [946995683] [2025-02-08 02:01:18,593 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 02:01:18,593 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 02:01:18,593 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 02:01:18,597 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 02:01:18,601 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process