./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 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_compare_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 965d656958c5277ff7b46967a72c2c81e4c2c563a1b6d02990446bd426a67de4 --- Real Ultimate output --- This is Ultimate 0.3.0-?-8fc3dc6-m [2025-03-17 07:24:31,189 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-17 07:24:31,250 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2025-03-17 07:24:31,253 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-17 07:24:31,254 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-17 07:24:31,278 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-17 07:24:31,278 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-17 07:24:31,279 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-17 07:24:31,280 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-17 07:24:31,280 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-17 07:24:31,280 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-17 07:24:31,280 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-17 07:24:31,281 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-17 07:24:31,281 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-17 07:24:31,281 INFO L153 SettingsManager]: * Use SBE=true [2025-03-17 07:24:31,281 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-17 07:24:31,281 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-17 07:24:31,281 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-17 07:24:31,281 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-17 07:24:31,281 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-17 07:24:31,281 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-17 07:24:31,281 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-17 07:24:31,281 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-17 07:24:31,281 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-17 07:24:31,282 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-17 07:24:31,282 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-17 07:24:31,282 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-17 07:24:31,282 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-17 07:24:31,282 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-17 07:24:31,282 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-17 07:24:31,282 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-17 07:24:31,282 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-17 07:24:31,283 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-17 07:24:31,283 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-17 07:24:31,283 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-17 07:24:31,283 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-17 07:24:31,283 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-17 07:24:31,283 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-17 07:24:31,283 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-17 07:24:31,283 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-17 07:24:31,283 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 -> 965d656958c5277ff7b46967a72c2c81e4c2c563a1b6d02990446bd426a67de4 [2025-03-17 07:24:31,501 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-17 07:24:31,510 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-17 07:24:31,512 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-17 07:24:31,514 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-17 07:24:31,514 INFO L274 PluginConnector]: CDTParser initialized [2025-03-17 07:24:31,515 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_string_compare_harness_negated.i [2025-03-17 07:24:32,702 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d90f10368/f4fd0cc655424d52b20d2f2253ac1ef7/FLAG049631f2a [2025-03-17 07:24:33,231 INFO L384 CDTParser]: Found 1 translation units. [2025-03-17 07:24:33,232 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_string_compare_harness_negated.i [2025-03-17 07:24:33,265 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d90f10368/f4fd0cc655424d52b20d2f2253ac1ef7/FLAG049631f2a [2025-03-17 07:24:33,776 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d90f10368/f4fd0cc655424d52b20d2f2253ac1ef7 [2025-03-17 07:24:33,779 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-17 07:24:33,780 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-17 07:24:33,781 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-17 07:24:33,781 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-17 07:24:33,784 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-17 07:24:33,785 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 07:24:33" (1/1) ... [2025-03-17 07:24:33,786 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@610ed84c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:24:33, skipping insertion in model container [2025-03-17 07:24:33,786 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 07:24:33" (1/1) ... [2025-03-17 07:24:33,854 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-17 07:24:34,091 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_compare_harness_negated.i[4492,4505] [2025-03-17 07:24:34,099 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_compare_harness_negated.i[4552,4565] [2025-03-17 07:24:34,735 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:24:34,736 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:24:34,736 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:24:34,737 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:24:34,738 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:24:34,753 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:24:34,754 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:24:34,756 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:24:34,756 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:24:35,250 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:24:35,251 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:24:35,367 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 07:24:35,417 INFO L200 MainTranslator]: Completed pre-run [2025-03-17 07:24:35,427 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_compare_harness_negated.i[4492,4505] [2025-03-17 07:24:35,432 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_compare_harness_negated.i[4552,4565] [2025-03-17 07:24:35,476 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:24:35,481 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:24:35,481 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:24:35,481 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:24:35,482 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:24:35,490 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:24:35,490 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:24:35,491 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:24:35,492 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:24:35,575 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : "+r"(index)); [8221] [2025-03-17 07:24:35,577 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:24:35,577 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:24:35,587 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [8707-8718] [2025-03-17 07:24:35,618 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 07:24:35,785 INFO L204 MainTranslator]: Completed translation [2025-03-17 07:24:35,786 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:24:35 WrapperNode [2025-03-17 07:24:35,787 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-17 07:24:35,787 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-17 07:24:35,788 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-17 07:24:35,788 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-17 07:24:35,793 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:24:35" (1/1) ... [2025-03-17 07:24:35,868 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:24:35" (1/1) ... [2025-03-17 07:24:35,928 INFO L138 Inliner]: procedures = 682, calls = 2786, calls flagged for inlining = 57, calls inlined = 5, statements flattened = 823 [2025-03-17 07:24:35,931 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-17 07:24:35,932 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-17 07:24:35,932 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-17 07:24:35,932 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-17 07:24:35,939 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:24:35" (1/1) ... [2025-03-17 07:24:35,940 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:24:35" (1/1) ... [2025-03-17 07:24:35,946 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:24:35" (1/1) ... [2025-03-17 07:24:35,998 INFO L175 MemorySlicer]: Split 529 memory accesses to 6 slices as follows [2, 11, 257, 238, 5, 16]. 49 percent of accesses are in the largest equivalence class. The 29 initializations are split as follows [2, 0, 0, 6, 5, 16]. The 492 writes are split as follows [0, 3, 257, 232, 0, 0]. [2025-03-17 07:24:35,999 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:24:35" (1/1) ... [2025-03-17 07:24:35,999 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:24:35" (1/1) ... [2025-03-17 07:24:36,022 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:24:35" (1/1) ... [2025-03-17 07:24:36,025 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:24:35" (1/1) ... [2025-03-17 07:24:36,033 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:24:35" (1/1) ... [2025-03-17 07:24:36,040 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:24:35" (1/1) ... [2025-03-17 07:24:36,052 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-17 07:24:36,054 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-17 07:24:36,054 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-17 07:24:36,054 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-17 07:24:36,055 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:24:35" (1/1) ... [2025-03-17 07:24:36,059 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-17 07:24:36,067 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 07:24:36,079 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 07:24:36,082 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 07:24:36,099 INFO L130 BoogieDeclarations]: Found specification of procedure aws_string_is_valid [2025-03-17 07:24:36,099 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_string_is_valid [2025-03-17 07:24:36,099 INFO L130 BoogieDeclarations]: Found specification of procedure aws_string_compare [2025-03-17 07:24:36,099 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_string_compare [2025-03-17 07:24:36,100 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_string_is_allocated_bounded_length [2025-03-17 07:24:36,100 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_string_is_allocated_bounded_length [2025-03-17 07:24:36,100 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2025-03-17 07:24:36,100 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2025-03-17 07:24:36,100 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2025-03-17 07:24:36,100 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2025-03-17 07:24:36,100 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2025-03-17 07:24:36,101 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2025-03-17 07:24:36,101 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2025-03-17 07:24:36,101 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2025-03-17 07:24:36,101 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-03-17 07:24:36,101 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-03-17 07:24:36,101 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-03-17 07:24:36,101 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-03-17 07:24:36,101 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2025-03-17 07:24:36,101 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2025-03-17 07:24:36,101 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-03-17 07:24:36,101 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-03-17 07:24:36,101 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-03-17 07:24:36,101 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-17 07:24:36,101 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-03-17 07:24:36,101 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-03-17 07:24:36,102 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-03-17 07:24:36,102 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2025-03-17 07:24:36,103 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2025-03-17 07:24:36,103 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2025-03-17 07:24:36,103 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-17 07:24:36,103 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-17 07:24:36,103 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2025-03-17 07:24:36,103 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2025-03-17 07:24:36,103 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2025-03-17 07:24:36,103 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2025-03-17 07:24:36,103 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2025-03-17 07:24:36,103 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2025-03-17 07:24:36,103 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2025-03-17 07:24:36,103 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2025-03-17 07:24:36,103 INFO L130 BoogieDeclarations]: Found specification of procedure aws_string_bytes [2025-03-17 07:24:36,103 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_string_bytes [2025-03-17 07:24:36,103 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-03-17 07:24:36,103 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-03-17 07:24:36,103 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2025-03-17 07:24:36,103 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2025-03-17 07:24:36,103 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2025-03-17 07:24:36,103 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2025-03-17 07:24:36,103 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2025-03-17 07:24:36,103 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2025-03-17 07:24:36,103 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2025-03-17 07:24:36,103 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2025-03-17 07:24:36,103 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2025-03-17 07:24:36,104 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2025-03-17 07:24:36,104 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-03-17 07:24:36,104 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-03-17 07:24:36,104 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-03-17 07:24:36,104 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-03-17 07:24:36,104 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2025-03-17 07:24:36,104 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2025-03-17 07:24:36,104 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-17 07:24:36,104 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-03-17 07:24:36,104 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-03-17 07:24:36,104 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-03-17 07:24:36,104 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-03-17 07:24:36,104 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2025-03-17 07:24:36,342 INFO L256 CfgBuilder]: Building ICFG [2025-03-17 07:24:36,343 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-17 07:24:36,376 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L6874: havoc #t~malloc557.base, #t~malloc557.offset; [2025-03-17 07:24:36,409 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 07:24:36,411 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L266: havoc #t~nondet9; [2025-03-17 07:24:36,422 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L261: havoc #t~nondet4; [2025-03-17 07:24:36,508 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L6791: havoc #t~ret543#1.base, #t~ret543#1.offset; [2025-03-17 07:24:43,472 INFO L? ?]: Removed 78 outVars from TransFormulas that were not future-live. [2025-03-17 07:24:43,472 INFO L307 CfgBuilder]: Performing block encoding [2025-03-17 07:24:43,482 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-17 07:24:43,484 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-17 07:24:43,485 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 07:24:43 BoogieIcfgContainer [2025-03-17 07:24:43,485 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-17 07:24:43,487 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-17 07:24:43,488 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-17 07:24:43,491 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-17 07:24:43,491 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.03 07:24:33" (1/3) ... [2025-03-17 07:24:43,491 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d801daa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 07:24:43, skipping insertion in model container [2025-03-17 07:24:43,491 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:24:35" (2/3) ... [2025-03-17 07:24:43,491 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d801daa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 07:24:43, skipping insertion in model container [2025-03-17 07:24:43,492 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 07:24:43" (3/3) ... [2025-03-17 07:24:43,492 INFO L128 eAbstractionObserver]: Analyzing ICFG aws_string_compare_harness_negated.i [2025-03-17 07:24:43,503 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-17 07:24:43,508 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. [2025-03-17 07:24:43,552 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-17 07:24:43,564 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;@4152eb8b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-17 07:24:43,564 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-03-17 07:24:43,567 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) [2025-03-17 07:24:43,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2025-03-17 07:24:43,576 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 07:24:43,577 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] [2025-03-17 07:24:43,577 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-17 07:24:43,581 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 07:24:43,581 INFO L85 PathProgramCache]: Analyzing trace with hash -89968007, now seen corresponding path program 1 times [2025-03-17 07:24:43,586 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 07:24:43,587 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1294418270] [2025-03-17 07:24:43,587 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 07:24:43,587 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 07:25:49,219 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 49 statements into 1 equivalence classes. [2025-03-17 07:25:49,764 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 49 of 49 statements. [2025-03-17 07:25:49,765 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 07:25:49,765 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 07:25:50,456 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2025-03-17 07:25:50,456 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 07:25:50,456 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1294418270] [2025-03-17 07:25:50,457 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1294418270] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 07:25:50,457 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1817081962] [2025-03-17 07:25:50,457 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 07:25:50,457 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 07:25:50,458 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 07:25:50,461 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 07:25:50,463 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process