./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 e2fb8bed 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-?-e2fb8be-m [2025-03-08 18:17:24,171 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-08 18:17:24,224 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2025-03-08 18:17:24,228 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-08 18:17:24,230 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-08 18:17:24,250 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-08 18:17:24,251 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-08 18:17:24,251 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-08 18:17:24,251 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-08 18:17:24,251 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-08 18:17:24,252 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-08 18:17:24,252 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-08 18:17:24,252 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-08 18:17:24,252 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-08 18:17:24,253 INFO L153 SettingsManager]: * Use SBE=true [2025-03-08 18:17:24,253 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-08 18:17:24,253 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-08 18:17:24,253 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-08 18:17:24,253 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-08 18:17:24,253 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-08 18:17:24,253 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-08 18:17:24,254 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-08 18:17:24,254 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-08 18:17:24,254 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-08 18:17:24,254 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-08 18:17:24,254 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-08 18:17:24,254 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-08 18:17:24,254 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-08 18:17:24,254 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-08 18:17:24,254 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 18:17:24,254 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-08 18:17:24,254 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-08 18:17:24,254 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-08 18:17:24,254 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-08 18:17:24,254 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-08 18:17:24,254 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-08 18:17:24,254 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-08 18:17:24,254 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-08 18:17:24,254 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-08 18:17:24,254 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-08 18:17:24,254 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 [2025-03-08 18:17:24,453 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-08 18:17:24,458 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-08 18:17:24,460 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-08 18:17:24,460 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-08 18:17:24,461 INFO L274 PluginConnector]: CDTParser initialized [2025-03-08 18:17:24,462 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_string_compare_harness_negated.i [2025-03-08 18:17:25,544 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f3d4e2e84/cfde3039552542fa9a4fee4865305e7c/FLAGeef2ca107 [2025-03-08 18:17:26,033 INFO L384 CDTParser]: Found 1 translation units. [2025-03-08 18:17:26,034 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_string_compare_harness_negated.i [2025-03-08 18:17:26,062 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f3d4e2e84/cfde3039552542fa9a4fee4865305e7c/FLAGeef2ca107 [2025-03-08 18:17:26,076 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f3d4e2e84/cfde3039552542fa9a4fee4865305e7c [2025-03-08 18:17:26,078 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-08 18:17:26,080 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-08 18:17:26,081 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-08 18:17:26,081 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-08 18:17:26,084 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-08 18:17:26,084 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 06:17:26" (1/1) ... [2025-03-08 18:17:26,086 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a12ba77 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:17:26, skipping insertion in model container [2025-03-08 18:17:26,086 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 06:17:26" (1/1) ... [2025-03-08 18:17:26,142 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-08 18:17:26,355 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] [2025-03-08 18:17:26,362 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] [2025-03-08 18:17:26,831 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:17:26,832 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:17:26,832 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:17:26,833 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:17:26,833 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:17:26,841 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:17:26,842 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:17:26,843 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:17:26,843 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:17:27,240 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:17:27,241 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:17:27,342 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 18:17:27,392 INFO L200 MainTranslator]: Completed pre-run [2025-03-08 18:17:27,405 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] [2025-03-08 18:17:27,405 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] [2025-03-08 18:17:27,443 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:17:27,443 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:17:27,443 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:17:27,444 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:17:27,444 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:17:27,448 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:17:27,448 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:17:27,449 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:17:27,450 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:17:27,527 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : "+r"(index)); [8221] [2025-03-08 18:17:27,529 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:17:27,529 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:17:27,538 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [8707-8718] [2025-03-08 18:17:27,558 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 18:17:27,742 INFO L204 MainTranslator]: Completed translation [2025-03-08 18:17:27,743 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:17:27 WrapperNode [2025-03-08 18:17:27,743 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-08 18:17:27,744 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-08 18:17:27,744 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-08 18:17:27,744 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-08 18:17:27,749 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:17:27" (1/1) ... [2025-03-08 18:17:27,807 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:17:27" (1/1) ... [2025-03-08 18:17:27,866 INFO L138 Inliner]: procedures = 682, calls = 2786, calls flagged for inlining = 57, calls inlined = 5, statements flattened = 823 [2025-03-08 18:17:27,866 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-08 18:17:27,867 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-08 18:17:27,867 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-08 18:17:27,867 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-08 18:17:27,874 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:17:27" (1/1) ... [2025-03-08 18:17:27,875 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:17:27" (1/1) ... [2025-03-08 18:17:27,886 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:17:27" (1/1) ... [2025-03-08 18:17:27,941 INFO L175 MemorySlicer]: Split 529 memory accesses to 6 slices as follows [2, 5, 11, 257, 238, 16]. 49 percent of accesses are in the largest equivalence class. The 29 initializations are split as follows [2, 5, 0, 0, 6, 16]. The 492 writes are split as follows [0, 0, 3, 257, 232, 0]. [2025-03-08 18:17:27,942 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:17:27" (1/1) ... [2025-03-08 18:17:27,943 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:17:27" (1/1) ... [2025-03-08 18:17:27,973 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:17:27" (1/1) ... [2025-03-08 18:17:27,978 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:17:27" (1/1) ... [2025-03-08 18:17:27,990 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:17:27" (1/1) ... [2025-03-08 18:17:27,992 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:17:27" (1/1) ... [2025-03-08 18:17:28,003 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-08 18:17:28,005 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-08 18:17:28,005 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-08 18:17:28,005 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-08 18:17:28,006 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:17:27" (1/1) ... [2025-03-08 18:17:28,010 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 18:17:28,019 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 18:17:28,031 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) [2025-03-08 18:17:28,033 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 [2025-03-08 18:17:28,054 INFO L130 BoogieDeclarations]: Found specification of procedure aws_string_is_valid [2025-03-08 18:17:28,054 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_string_is_valid [2025-03-08 18:17:28,054 INFO L130 BoogieDeclarations]: Found specification of procedure aws_string_compare [2025-03-08 18:17:28,054 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_string_compare [2025-03-08 18:17:28,054 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_string_is_allocated_bounded_length [2025-03-08 18:17:28,054 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_string_is_allocated_bounded_length [2025-03-08 18:17:28,054 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2025-03-08 18:17:28,054 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2025-03-08 18:17:28,055 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2025-03-08 18:17:28,055 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2025-03-08 18:17:28,055 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2025-03-08 18:17:28,055 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2025-03-08 18:17:28,056 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2025-03-08 18:17:28,056 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2025-03-08 18:17:28,056 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-03-08 18:17:28,056 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-03-08 18:17:28,056 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-03-08 18:17:28,056 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-03-08 18:17:28,056 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2025-03-08 18:17:28,056 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2025-03-08 18:17:28,056 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-03-08 18:17:28,056 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-03-08 18:17:28,056 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-03-08 18:17:28,057 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-08 18:17:28,057 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-03-08 18:17:28,057 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-03-08 18:17:28,057 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-03-08 18:17:28,057 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2025-03-08 18:17:28,057 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2025-03-08 18:17:28,057 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2025-03-08 18:17:28,057 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-08 18:17:28,057 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-08 18:17:28,057 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2025-03-08 18:17:28,057 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2025-03-08 18:17:28,057 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2025-03-08 18:17:28,057 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2025-03-08 18:17:28,057 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2025-03-08 18:17:28,057 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2025-03-08 18:17:28,057 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2025-03-08 18:17:28,057 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2025-03-08 18:17:28,057 INFO L130 BoogieDeclarations]: Found specification of procedure aws_string_bytes [2025-03-08 18:17:28,057 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_string_bytes [2025-03-08 18:17:28,057 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-03-08 18:17:28,057 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-03-08 18:17:28,057 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2025-03-08 18:17:28,057 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2025-03-08 18:17:28,057 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2025-03-08 18:17:28,057 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2025-03-08 18:17:28,057 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2025-03-08 18:17:28,057 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2025-03-08 18:17:28,057 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2025-03-08 18:17:28,059 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2025-03-08 18:17:28,059 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2025-03-08 18:17:28,059 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2025-03-08 18:17:28,059 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-03-08 18:17:28,059 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-03-08 18:17:28,059 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-03-08 18:17:28,059 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-03-08 18:17:28,059 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2025-03-08 18:17:28,059 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2025-03-08 18:17:28,060 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-08 18:17:28,060 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-03-08 18:17:28,060 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-03-08 18:17:28,060 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-03-08 18:17:28,060 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-03-08 18:17:28,060 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2025-03-08 18:17:28,294 INFO L256 CfgBuilder]: Building ICFG [2025-03-08 18:17:28,296 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-08 18:17:28,325 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L6874: havoc #t~malloc557.base, #t~malloc557.offset; [2025-03-08 18:17:28,349 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L6244: havoc #t~mem472;havoc #t~short473;havoc #t~mem474;havoc #t~mem475;havoc #t~short476; [2025-03-08 18:17:28,353 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L266: havoc #t~nondet9; [2025-03-08 18:17:28,369 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L261: havoc #t~nondet4; [2025-03-08 18:17:28,450 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L6791: havoc #t~ret543#1.base, #t~ret543#1.offset; [2025-03-08 18:17:35,286 INFO L? ?]: Removed 81 outVars from TransFormulas that were not future-live. [2025-03-08 18:17:35,287 INFO L307 CfgBuilder]: Performing block encoding [2025-03-08 18:17:35,294 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-08 18:17:35,294 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-08 18:17:35,295 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 06:17:35 BoogieIcfgContainer [2025-03-08 18:17:35,295 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-08 18:17:35,298 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-08 18:17:35,298 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-08 18:17:35,301 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-08 18:17:35,301 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.03 06:17:26" (1/3) ... [2025-03-08 18:17:35,302 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7210b4dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 06:17:35, skipping insertion in model container [2025-03-08 18:17:35,302 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:17:27" (2/3) ... [2025-03-08 18:17:35,303 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7210b4dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 06:17:35, skipping insertion in model container [2025-03-08 18:17:35,303 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 06:17:35" (3/3) ... [2025-03-08 18:17:35,303 INFO L128 eAbstractionObserver]: Analyzing ICFG aws_string_compare_harness_negated.i [2025-03-08 18:17:35,314 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-08 18:17:35,315 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG aws_string_compare_harness_negated.i that has 11 procedures, 121 locations, 1 initial locations, 0 loop locations, and 1 error locations. [2025-03-08 18:17:35,354 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-08 18:17:35,363 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;@7de3c212, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-08 18:17:35,365 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-03-08 18:17:35,368 INFO L276 IsEmpty]: Start isEmpty. Operand has 121 states, 76 states have (on average 1.2763157894736843) internal successors, (97), 77 states have internal predecessors, (97), 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) [2025-03-08 18:17:35,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2025-03-08 18:17:35,377 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 18:17:35,377 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, 1] [2025-03-08 18:17:35,378 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 18:17:35,381 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 18:17:35,382 INFO L85 PathProgramCache]: Analyzing trace with hash -928018743, now seen corresponding path program 1 times [2025-03-08 18:17:35,387 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 18:17:35,387 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [39185941] [2025-03-08 18:17:35,387 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 18:17:35,388 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 18:18:38,641 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 50 statements into 1 equivalence classes. [2025-03-08 18:18:39,133 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 50 of 50 statements. [2025-03-08 18:18:39,134 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 18:18:39,134 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 18:18:39,794 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2025-03-08 18:18:39,794 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 18:18:39,794 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [39185941] [2025-03-08 18:18:39,795 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [39185941] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 18:18:39,795 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [725757603] [2025-03-08 18:18:39,795 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 18:18:39,795 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 18:18:39,795 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 18:18:39,797 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) [2025-03-08 18:18:39,799 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process