./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 798a7b37 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-?-798a7b3-m [2025-03-04 03:06:03,296 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-04 03:06:03,354 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2025-03-04 03:06:03,357 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-04 03:06:03,357 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-04 03:06:03,374 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-04 03:06:03,375 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-04 03:06:03,375 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-04 03:06:03,375 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-04 03:06:03,375 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-04 03:06:03,376 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-04 03:06:03,376 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-04 03:06:03,376 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-04 03:06:03,376 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-04 03:06:03,377 INFO L153 SettingsManager]: * Use SBE=true [2025-03-04 03:06:03,377 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-04 03:06:03,377 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-04 03:06:03,377 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-04 03:06:03,377 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-04 03:06:03,377 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-04 03:06:03,377 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-04 03:06:03,378 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-04 03:06:03,378 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-04 03:06:03,378 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-04 03:06:03,378 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-04 03:06:03,378 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-04 03:06:03,378 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-04 03:06:03,378 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-04 03:06:03,378 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-04 03:06:03,378 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 03:06:03,379 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-04 03:06:03,379 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-04 03:06:03,379 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-04 03:06:03,379 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-04 03:06:03,379 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-04 03:06:03,380 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-04 03:06:03,380 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-04 03:06:03,380 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-04 03:06:03,380 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-04 03:06:03,380 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-04 03:06:03,380 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 [2025-03-04 03:06:03,600 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-04 03:06:03,609 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-04 03:06:03,611 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-04 03:06:03,612 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-04 03:06:03,612 INFO L274 PluginConnector]: CDTParser initialized [2025-03-04 03:06:03,613 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_string_compare_harness_negated.i [2025-03-04 03:06:04,728 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9ad183bf1/143d03375a2b4e29921f891fb3dbc64a/FLAG5cd257229 [2025-03-04 03:06:05,147 INFO L384 CDTParser]: Found 1 translation units. [2025-03-04 03:06:05,148 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_string_compare_harness_negated.i [2025-03-04 03:06:05,184 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9ad183bf1/143d03375a2b4e29921f891fb3dbc64a/FLAG5cd257229 [2025-03-04 03:06:05,299 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9ad183bf1/143d03375a2b4e29921f891fb3dbc64a [2025-03-04 03:06:05,302 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-04 03:06:05,303 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-04 03:06:05,304 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-04 03:06:05,304 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-04 03:06:05,307 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-04 03:06:05,308 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 03:06:05" (1/1) ... [2025-03-04 03:06:05,310 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d8f1ef7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:06:05, skipping insertion in model container [2025-03-04 03:06:05,310 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 03:06:05" (1/1) ... [2025-03-04 03:06:05,381 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-04 03:06:05,557 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] [2025-03-04 03:06:05,565 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] [2025-03-04 03:06:06,034 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:06:06,035 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:06:06,035 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:06:06,036 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:06:06,036 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:06:06,044 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:06:06,045 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:06:06,046 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:06:06,046 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:06:06,449 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:06:06,450 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:06:06,538 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 03:06:06,595 INFO L200 MainTranslator]: Completed pre-run [2025-03-04 03:06:06,604 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] [2025-03-04 03:06:06,605 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] [2025-03-04 03:06:06,673 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:06:06,674 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:06:06,674 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:06:06,674 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:06:06,677 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:06:06,682 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:06:06,683 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:06:06,684 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:06:06,685 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:06:06,780 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : "+r"(index)); [8221] [2025-03-04 03:06:06,782 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:06:06,783 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:06:06,794 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [8707-8718] [2025-03-04 03:06:06,817 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 03:06:06,979 INFO L204 MainTranslator]: Completed translation [2025-03-04 03:06:06,980 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:06:06 WrapperNode [2025-03-04 03:06:06,980 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-04 03:06:06,981 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-04 03:06:06,981 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-04 03:06:06,981 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-04 03:06:06,985 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:06:06" (1/1) ... [2025-03-04 03:06:07,036 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:06:06" (1/1) ... [2025-03-04 03:06:07,078 INFO L138 Inliner]: procedures = 682, calls = 2786, calls flagged for inlining = 57, calls inlined = 5, statements flattened = 823 [2025-03-04 03:06:07,079 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-04 03:06:07,079 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-04 03:06:07,079 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-04 03:06:07,079 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-04 03:06:07,085 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:06:06" (1/1) ... [2025-03-04 03:06:07,085 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:06:06" (1/1) ... [2025-03-04 03:06:07,092 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:06:06" (1/1) ... [2025-03-04 03:06:07,143 INFO L175 MemorySlicer]: Split 529 memory accesses to 6 slices as follows [2, 11, 5, 257, 238, 16]. 49 percent of accesses are in the largest equivalence class. The 29 initializations are split as follows [2, 0, 5, 0, 6, 16]. The 492 writes are split as follows [0, 3, 0, 257, 232, 0]. [2025-03-04 03:06:07,145 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:06:06" (1/1) ... [2025-03-04 03:06:07,145 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:06:06" (1/1) ... [2025-03-04 03:06:07,195 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:06:06" (1/1) ... [2025-03-04 03:06:07,200 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:06:06" (1/1) ... [2025-03-04 03:06:07,205 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:06:06" (1/1) ... [2025-03-04 03:06:07,208 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:06:06" (1/1) ... [2025-03-04 03:06:07,215 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-04 03:06:07,218 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-04 03:06:07,218 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-04 03:06:07,218 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-04 03:06:07,219 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:06:06" (1/1) ... [2025-03-04 03:06:07,223 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 03:06:07,231 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 03:06:07,243 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) [2025-03-04 03:06:07,246 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 [2025-03-04 03:06:07,263 INFO L130 BoogieDeclarations]: Found specification of procedure aws_string_is_valid [2025-03-04 03:06:07,264 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_string_is_valid [2025-03-04 03:06:07,264 INFO L130 BoogieDeclarations]: Found specification of procedure aws_string_compare [2025-03-04 03:06:07,264 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_string_compare [2025-03-04 03:06:07,264 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_string_is_allocated_bounded_length [2025-03-04 03:06:07,264 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_string_is_allocated_bounded_length [2025-03-04 03:06:07,264 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2025-03-04 03:06:07,264 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2025-03-04 03:06:07,265 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2025-03-04 03:06:07,265 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2025-03-04 03:06:07,265 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2025-03-04 03:06:07,265 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2025-03-04 03:06:07,265 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2025-03-04 03:06:07,265 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2025-03-04 03:06:07,265 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-03-04 03:06:07,265 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-03-04 03:06:07,266 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-03-04 03:06:07,266 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-03-04 03:06:07,266 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2025-03-04 03:06:07,266 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2025-03-04 03:06:07,266 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-03-04 03:06:07,266 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-03-04 03:06:07,266 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-03-04 03:06:07,266 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-04 03:06:07,266 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-03-04 03:06:07,266 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-03-04 03:06:07,266 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-03-04 03:06:07,266 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2025-03-04 03:06:07,266 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2025-03-04 03:06:07,266 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2025-03-04 03:06:07,266 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-04 03:06:07,266 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-04 03:06:07,266 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2025-03-04 03:06:07,266 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2025-03-04 03:06:07,266 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2025-03-04 03:06:07,266 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2025-03-04 03:06:07,266 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2025-03-04 03:06:07,266 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2025-03-04 03:06:07,266 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2025-03-04 03:06:07,266 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2025-03-04 03:06:07,266 INFO L130 BoogieDeclarations]: Found specification of procedure aws_string_bytes [2025-03-04 03:06:07,266 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_string_bytes [2025-03-04 03:06:07,266 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-03-04 03:06:07,266 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-03-04 03:06:07,266 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2025-03-04 03:06:07,266 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2025-03-04 03:06:07,266 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2025-03-04 03:06:07,266 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2025-03-04 03:06:07,267 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2025-03-04 03:06:07,267 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2025-03-04 03:06:07,267 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2025-03-04 03:06:07,267 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2025-03-04 03:06:07,267 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2025-03-04 03:06:07,267 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2025-03-04 03:06:07,267 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-03-04 03:06:07,267 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-03-04 03:06:07,267 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-03-04 03:06:07,267 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-03-04 03:06:07,267 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2025-03-04 03:06:07,267 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2025-03-04 03:06:07,268 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-04 03:06:07,268 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-03-04 03:06:07,268 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-03-04 03:06:07,268 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-03-04 03:06:07,268 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-03-04 03:06:07,268 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2025-03-04 03:06:07,494 INFO L256 CfgBuilder]: Building ICFG [2025-03-04 03:06:07,496 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-04 03:06:07,523 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L6874: havoc #t~malloc557.base, #t~malloc557.offset; [2025-03-04 03:06:07,551 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L6244: havoc #t~mem472;havoc #t~short473;havoc #t~mem474;havoc #t~mem475;havoc #t~short476; [2025-03-04 03:06:07,553 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L266: havoc #t~nondet9; [2025-03-04 03:06:07,569 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L261: havoc #t~nondet4; [2025-03-04 03:06:07,660 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L6791: havoc #t~ret543#1.base, #t~ret543#1.offset; [2025-03-04 03:06:14,640 INFO L? ?]: Removed 81 outVars from TransFormulas that were not future-live. [2025-03-04 03:06:14,640 INFO L307 CfgBuilder]: Performing block encoding [2025-03-04 03:06:14,647 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-04 03:06:14,647 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-04 03:06:14,648 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 03:06:14 BoogieIcfgContainer [2025-03-04 03:06:14,648 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-04 03:06:14,650 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-04 03:06:14,650 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-04 03:06:14,653 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-04 03:06:14,653 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.03 03:06:05" (1/3) ... [2025-03-04 03:06:14,654 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25c2a51e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 03:06:14, skipping insertion in model container [2025-03-04 03:06:14,654 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:06:06" (2/3) ... [2025-03-04 03:06:14,654 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25c2a51e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 03:06:14, skipping insertion in model container [2025-03-04 03:06:14,654 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 03:06:14" (3/3) ... [2025-03-04 03:06:14,656 INFO L128 eAbstractionObserver]: Analyzing ICFG aws_string_compare_harness_negated.i [2025-03-04 03:06:14,668 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-04 03:06:14,671 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. [2025-03-04 03:06:14,710 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-04 03:06:14,718 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;@18b626b1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-04 03:06:14,719 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-03-04 03:06:14,722 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) [2025-03-04 03:06:14,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2025-03-04 03:06:14,729 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 03:06:14,730 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] [2025-03-04 03:06:14,731 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-04 03:06:14,735 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 03:06:14,736 INFO L85 PathProgramCache]: Analyzing trace with hash -928018743, now seen corresponding path program 1 times [2025-03-04 03:06:14,742 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 03:06:14,743 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [474638269] [2025-03-04 03:06:14,743 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 03:06:14,743 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 03:07:20,581 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 50 statements into 1 equivalence classes. [2025-03-04 03:07:21,133 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 50 of 50 statements. [2025-03-04 03:07:21,135 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 03:07:21,135 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 03:07:21,762 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2025-03-04 03:07:21,762 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 03:07:21,763 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [474638269] [2025-03-04 03:07:21,764 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [474638269] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 03:07:21,764 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [411431189] [2025-03-04 03:07:21,764 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 03:07:21,764 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 03:07:21,765 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 03:07:21,767 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) [2025-03-04 03:07:21,768 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process