./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_string_eq_c_str_harness_negated.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c00e63dc 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_eq_c_str_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 f3174b0caf7483d7aa96d2ace1d661f4c70bbed9301f1108659fc7d611ebd9af --- Real Ultimate output --- This is Ultimate 0.3.0-?-c00e63d-m [2025-02-06 05:26:13,518 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-06 05:26:13,575 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2025-02-06 05:26:13,580 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-06 05:26:13,582 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-06 05:26:13,600 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-06 05:26:13,601 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-06 05:26:13,601 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-06 05:26:13,601 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-06 05:26:13,602 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-06 05:26:13,602 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-06 05:26:13,602 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-06 05:26:13,602 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-06 05:26:13,603 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-06 05:26:13,603 INFO L153 SettingsManager]: * Use SBE=true [2025-02-06 05:26:13,603 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-06 05:26:13,603 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-06 05:26:13,603 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-06 05:26:13,604 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-06 05:26:13,604 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-06 05:26:13,604 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-06 05:26:13,604 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-06 05:26:13,604 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-06 05:26:13,604 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-06 05:26:13,604 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-06 05:26:13,604 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-06 05:26:13,604 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-06 05:26:13,604 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-06 05:26:13,604 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-06 05:26:13,604 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 05:26:13,605 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-06 05:26:13,605 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-06 05:26:13,605 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-06 05:26:13,605 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-06 05:26:13,605 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-06 05:26:13,605 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-06 05:26:13,605 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-06 05:26:13,605 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-06 05:26:13,605 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-06 05:26:13,605 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-06 05:26:13,606 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 -> f3174b0caf7483d7aa96d2ace1d661f4c70bbed9301f1108659fc7d611ebd9af [2025-02-06 05:26:13,809 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-06 05:26:13,823 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-06 05:26:13,824 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-06 05:26:13,825 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-06 05:26:13,828 INFO L274 PluginConnector]: CDTParser initialized [2025-02-06 05:26:13,829 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_string_eq_c_str_harness_negated.i [2025-02-06 05:26:14,977 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/ef0a0df7d/ba03db0988804a53b25773c0d11ec613/FLAG4ecc396a8 [2025-02-06 05:26:15,496 INFO L384 CDTParser]: Found 1 translation units. [2025-02-06 05:26:15,497 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_string_eq_c_str_harness_negated.i [2025-02-06 05:26:15,530 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/ef0a0df7d/ba03db0988804a53b25773c0d11ec613/FLAG4ecc396a8 [2025-02-06 05:26:15,562 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/ef0a0df7d/ba03db0988804a53b25773c0d11ec613 [2025-02-06 05:26:15,564 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-06 05:26:15,565 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-06 05:26:15,567 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-06 05:26:15,567 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-06 05:26:15,570 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-06 05:26:15,570 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 05:26:15" (1/1) ... [2025-02-06 05:26:15,572 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@57472dd2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:26:15, skipping insertion in model container [2025-02-06 05:26:15,572 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 05:26:15" (1/1) ... [2025-02-06 05:26:15,646 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-06 05:26:15,808 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_eq_c_str_harness_negated.i[4493,4506] [2025-02-06 05:26:15,814 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_eq_c_str_harness_negated.i[4553,4566] [2025-02-06 05:26:16,373 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:26:16,374 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:26:16,374 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:26:16,375 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:26:16,376 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:26:16,388 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:26:16,388 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:26:16,390 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:26:16,390 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:26:16,749 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:26:16,749 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:26:16,766 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 05:26:16,846 INFO L200 MainTranslator]: Completed pre-run [2025-02-06 05:26:16,859 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_eq_c_str_harness_negated.i[4493,4506] [2025-02-06 05:26:16,859 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_eq_c_str_harness_negated.i[4553,4566] [2025-02-06 05:26:16,904 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:26:16,904 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:26:16,904 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:26:16,905 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:26:16,905 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:26:16,913 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:26:16,913 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:26:16,914 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:26:16,914 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:26:16,987 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : "+r"(index)); [8556] [2025-02-06 05:26:16,988 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:26:16,989 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:26:16,997 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 05:26:17,140 INFO L204 MainTranslator]: Completed translation [2025-02-06 05:26:17,141 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:26:17 WrapperNode [2025-02-06 05:26:17,142 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-06 05:26:17,142 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-06 05:26:17,142 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-06 05:26:17,143 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-06 05:26:17,146 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:26:17" (1/1) ... [2025-02-06 05:26:17,190 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:26:17" (1/1) ... [2025-02-06 05:26:17,223 INFO L138 Inliner]: procedures = 670, calls = 2270, calls flagged for inlining = 60, calls inlined = 8, statements flattened = 396 [2025-02-06 05:26:17,224 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-06 05:26:17,224 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-06 05:26:17,224 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-06 05:26:17,224 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-06 05:26:17,234 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:26:17" (1/1) ... [2025-02-06 05:26:17,234 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:26:17" (1/1) ... [2025-02-06 05:26:17,242 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:26:17" (1/1) ... [2025-02-06 05:26:17,261 INFO L175 MemorySlicer]: Split 279 memory accesses to 4 slices as follows [2, 257, 5, 15]. 92 percent of accesses are in the largest equivalence class. The 7 initializations are split as follows [2, 0, 5, 0]. The 260 writes are split as follows [0, 257, 0, 3]. [2025-02-06 05:26:17,261 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:26:17" (1/1) ... [2025-02-06 05:26:17,261 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:26:17" (1/1) ... [2025-02-06 05:26:17,281 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:26:17" (1/1) ... [2025-02-06 05:26:17,284 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:26:17" (1/1) ... [2025-02-06 05:26:17,287 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:26:17" (1/1) ... [2025-02-06 05:26:17,289 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:26:17" (1/1) ... [2025-02-06 05:26:17,293 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-06 05:26:17,293 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-06 05:26:17,293 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-06 05:26:17,293 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-06 05:26:17,294 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:26:17" (1/1) ... [2025-02-06 05:26:17,297 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 05:26:17,306 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 05:26:17,320 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) [2025-02-06 05:26:17,337 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 [2025-02-06 05:26:17,353 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_eq_c_str [2025-02-06 05:26:17,354 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_eq_c_str [2025-02-06 05:26:17,354 INFO L130 BoogieDeclarations]: Found specification of procedure aws_string_is_valid [2025-02-06 05:26:17,355 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_string_is_valid [2025-02-06 05:26:17,355 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_string_is_allocated_bounded_length [2025-02-06 05:26:17,355 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_string_is_allocated_bounded_length [2025-02-06 05:26:17,355 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2025-02-06 05:26:17,355 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2025-02-06 05:26:17,355 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2025-02-06 05:26:17,356 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2025-02-06 05:26:17,356 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2025-02-06 05:26:17,356 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2025-02-06 05:26:17,356 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-02-06 05:26:17,356 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-02-06 05:26:17,356 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-02-06 05:26:17,356 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-02-06 05:26:17,356 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-02-06 05:26:17,356 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-02-06 05:26:17,356 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-02-06 05:26:17,356 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-06 05:26:17,356 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-02-06 05:26:17,356 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-02-06 05:26:17,357 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-02-06 05:26:17,357 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2025-02-06 05:26:17,357 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-06 05:26:17,357 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-06 05:26:17,357 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2025-02-06 05:26:17,357 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2025-02-06 05:26:17,357 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-02-06 05:26:17,358 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-02-06 05:26:17,358 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2025-02-06 05:26:17,358 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2025-02-06 05:26:17,358 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2025-02-06 05:26:17,358 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2025-02-06 05:26:17,358 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2025-02-06 05:26:17,358 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2025-02-06 05:26:17,358 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2025-02-06 05:26:17,358 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2025-02-06 05:26:17,358 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-02-06 05:26:17,358 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-02-06 05:26:17,358 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-02-06 05:26:17,358 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-02-06 05:26:17,358 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-06 05:26:17,358 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-02-06 05:26:17,359 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-02-06 05:26:17,359 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-02-06 05:26:17,555 INFO L257 CfgBuilder]: Building ICFG [2025-02-06 05:26:17,557 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-06 05:26:17,589 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L6875: havoc #t~malloc557.base, #t~malloc557.offset; [2025-02-06 05:26:17,598 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L261: havoc #t~nondet4; [2025-02-06 05:26:17,641 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L8078: havoc #t~mem921; [2025-02-06 05:26:17,655 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L6245: havoc #t~mem472;havoc #t~short473;havoc #t~mem474;havoc #t~mem475;havoc #t~short476; [2025-02-06 05:26:17,657 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L266: havoc #t~nondet9; [2025-02-06 05:26:17,677 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L6792: havoc #t~ret543#1.base, #t~ret543#1.offset; [2025-02-06 05:26:23,360 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L7566: havoc aws_string_eq_c_str_#t~mem734#1;havoc aws_string_eq_c_str_#t~ret735#1; [2025-02-06 05:26:23,432 INFO L? ?]: Removed 92 outVars from TransFormulas that were not future-live. [2025-02-06 05:26:23,432 INFO L308 CfgBuilder]: Performing block encoding [2025-02-06 05:26:23,443 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-06 05:26:23,443 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-06 05:26:23,443 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 05:26:23 BoogieIcfgContainer [2025-02-06 05:26:23,444 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-06 05:26:23,445 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-06 05:26:23,445 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-06 05:26:23,448 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-06 05:26:23,448 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.02 05:26:15" (1/3) ... [2025-02-06 05:26:23,449 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ea6a36f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 05:26:23, skipping insertion in model container [2025-02-06 05:26:23,449 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:26:17" (2/3) ... [2025-02-06 05:26:23,449 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ea6a36f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 05:26:23, skipping insertion in model container [2025-02-06 05:26:23,449 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 05:26:23" (3/3) ... [2025-02-06 05:26:23,450 INFO L128 eAbstractionObserver]: Analyzing ICFG aws_string_eq_c_str_harness_negated.i [2025-02-06 05:26:23,461 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-06 05:26:23,462 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG aws_string_eq_c_str_harness_negated.i that has 10 procedures, 105 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-02-06 05:26:23,494 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-06 05:26:23,501 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;@665d7d4f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-06 05:26:23,501 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-02-06 05:26:23,504 INFO L276 IsEmpty]: Start isEmpty. Operand has 105 states, 68 states have (on average 1.2352941176470589) internal successors, (84), 69 states have internal predecessors, (84), 26 states have call successors, (26), 9 states have call predecessors, (26), 9 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2025-02-06 05:26:23,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2025-02-06 05:26:23,509 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 05:26:23,509 INFO L218 NwaCegarLoop]: trace histogram [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] [2025-02-06 05:26:23,509 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 05:26:23,512 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 05:26:23,512 INFO L85 PathProgramCache]: Analyzing trace with hash 2002151288, now seen corresponding path program 1 times [2025-02-06 05:26:23,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 05:26:23,517 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2068752021] [2025-02-06 05:26:23,517 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 05:26:23,518 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 05:27:14,551 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 36 statements into 1 equivalence classes. [2025-02-06 05:27:14,962 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 36 of 36 statements. [2025-02-06 05:27:14,963 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 05:27:14,963 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 05:27:15,398 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-02-06 05:27:15,399 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 05:27:15,399 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2068752021] [2025-02-06 05:27:15,400 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2068752021] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 05:27:15,400 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 05:27:15,401 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-06 05:27:15,402 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1037864026] [2025-02-06 05:27:15,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 05:27:15,404 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-02-06 05:27:15,404 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 05:27:15,418 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-02-06 05:27:15,418 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-06 05:27:15,420 INFO L87 Difference]: Start difference. First operand has 105 states, 68 states have (on average 1.2352941176470589) internal successors, (84), 69 states have internal predecessors, (84), 26 states have call successors, (26), 9 states have call predecessors, (26), 9 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) Second operand has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2025-02-06 05:27:15,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 05:27:15,446 INFO L93 Difference]: Finished difference Result 201 states and 275 transitions. [2025-02-06 05:27:15,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-02-06 05:27:15,448 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 36 [2025-02-06 05:27:15,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 05:27:15,454 INFO L225 Difference]: With dead ends: 201 [2025-02-06 05:27:15,454 INFO L226 Difference]: Without dead ends: 99 [2025-02-06 05:27:15,458 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-06 05:27:15,461 INFO L435 NwaCegarLoop]: 134 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 134 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-06 05:27:15,462 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-06 05:27:15,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2025-02-06 05:27:15,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 99. [2025-02-06 05:27:15,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 63 states have (on average 1.1904761904761905) internal successors, (75), 64 states have internal predecessors, (75), 26 states have call successors, (26), 9 states have call predecessors, (26), 9 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2025-02-06 05:27:15,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 126 transitions. [2025-02-06 05:27:15,504 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 126 transitions. Word has length 36 [2025-02-06 05:27:15,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 05:27:15,508 INFO L471 AbstractCegarLoop]: Abstraction has 99 states and 126 transitions. [2025-02-06 05:27:15,509 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2025-02-06 05:27:15,509 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 126 transitions. [2025-02-06 05:27:15,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2025-02-06 05:27:15,510 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 05:27:15,510 INFO L218 NwaCegarLoop]: trace histogram [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] [2025-02-06 05:27:15,511 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-06 05:27:15,511 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 05:27:15,511 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 05:27:15,511 INFO L85 PathProgramCache]: Analyzing trace with hash 1157679417, now seen corresponding path program 1 times [2025-02-06 05:27:15,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 05:27:15,511 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1815345794] [2025-02-06 05:27:15,511 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 05:27:15,511 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms