./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_string_eq_ignore_case_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 551b0097 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/aws-c-common/aws_string_eq_ignore_case_harness.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 5c58e2434ae79fdf5f8dceab88ea2b6ad3f1a1a8bb44e2d930eaf759f64b3d29 --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-09 17:32:32,299 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-09 17:32:32,368 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2025-01-09 17:32:32,379 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-09 17:32:32,379 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-09 17:32:32,405 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-09 17:32:32,406 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-09 17:32:32,407 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-09 17:32:32,407 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-01-09 17:32:32,407 INFO L153 SettingsManager]: * Use memory slicer=true [2025-01-09 17:32:32,408 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-09 17:32:32,408 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-09 17:32:32,408 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-09 17:32:32,409 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-09 17:32:32,409 INFO L153 SettingsManager]: * Use SBE=true [2025-01-09 17:32:32,409 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-09 17:32:32,410 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-09 17:32:32,410 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-09 17:32:32,410 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-09 17:32:32,410 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-09 17:32:32,410 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-09 17:32:32,410 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-09 17:32:32,410 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-09 17:32:32,410 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-09 17:32:32,410 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-09 17:32:32,410 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-09 17:32:32,411 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 17:32:32,411 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 17:32:32,411 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 17:32:32,411 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 17:32:32,411 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-09 17:32:32,411 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 17:32:32,411 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 17:32:32,412 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 17:32:32,412 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 17:32:32,412 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-09 17:32:32,412 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-09 17:32:32,412 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-09 17:32:32,412 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-09 17:32:32,412 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-09 17:32:32,412 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-01-09 17:32:32,412 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-09 17:32:32,412 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-09 17:32:32,413 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-09 17:32:32,413 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-09 17:32:32,413 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5c58e2434ae79fdf5f8dceab88ea2b6ad3f1a1a8bb44e2d930eaf759f64b3d29 [2025-01-09 17:32:32,667 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-09 17:32:32,677 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-09 17:32:32,679 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-09 17:32:32,680 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-09 17:32:32,680 INFO L274 PluginConnector]: CDTParser initialized [2025-01-09 17:32:32,683 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_string_eq_ignore_case_harness.i [2025-01-09 17:32:34,011 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/ce2834fe5/7dffdc04d86441858861111b37cd0e67/FLAG2833e79a6 [2025-01-09 17:32:34,547 INFO L384 CDTParser]: Found 1 translation units. [2025-01-09 17:32:34,548 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_string_eq_ignore_case_harness.i [2025-01-09 17:32:34,587 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/ce2834fe5/7dffdc04d86441858861111b37cd0e67/FLAG2833e79a6 [2025-01-09 17:32:34,605 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/ce2834fe5/7dffdc04d86441858861111b37cd0e67 [2025-01-09 17:32:34,608 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-09 17:32:34,610 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-09 17:32:34,611 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-09 17:32:34,611 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-09 17:32:34,616 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-09 17:32:34,617 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 05:32:34" (1/1) ... [2025-01-09 17:32:34,617 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c92c80a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:32:34, skipping insertion in model container [2025-01-09 17:32:34,617 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 05:32:34" (1/1) ... [2025-01-09 17:32:34,698 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-09 17:32:34,959 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_string_eq_ignore_case_harness.i[4499,4512] [2025-01-09 17:32:34,970 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_string_eq_ignore_case_harness.i[4559,4572] [2025-01-09 17:32:35,638 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:32:35,638 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:32:35,639 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:32:35,641 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:32:35,642 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:32:35,653 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:32:35,654 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:32:35,655 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:32:35,656 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:32:36,290 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:32:36,291 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:32:36,315 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 17:32:36,363 INFO L200 MainTranslator]: Completed pre-run [2025-01-09 17:32:36,380 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_string_eq_ignore_case_harness.i[4499,4512] [2025-01-09 17:32:36,382 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_string_eq_ignore_case_harness.i[4559,4572] [2025-01-09 17:32:36,436 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:32:36,436 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:32:36,436 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:32:36,437 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:32:36,437 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:32:36,446 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:32:36,447 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:32:36,448 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:32:36,450 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:32:36,631 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : "+r"(index)); [8588] [2025-01-09 17:32:36,633 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:32:36,633 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:32:36,655 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 17:32:36,894 INFO L204 MainTranslator]: Completed translation [2025-01-09 17:32:36,895 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:32:36 WrapperNode [2025-01-09 17:32:36,896 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-09 17:32:36,897 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-09 17:32:36,897 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-09 17:32:36,897 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-09 17:32:36,906 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:32:36" (1/1) ... [2025-01-09 17:32:36,978 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:32:36" (1/1) ... [2025-01-09 17:32:37,040 INFO L138 Inliner]: procedures = 670, calls = 2270, calls flagged for inlining = 57, calls inlined = 5, statements flattened = 373 [2025-01-09 17:32:37,041 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-09 17:32:37,041 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-09 17:32:37,041 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-09 17:32:37,041 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-09 17:32:37,054 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:32:36" (1/1) ... [2025-01-09 17:32:37,054 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:32:36" (1/1) ... [2025-01-09 17:32:37,061 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:32:36" (1/1) ... [2025-01-09 17:32:37,091 INFO L175 MemorySlicer]: Split 278 memory accesses to 4 slices as follows [2, 259, 5, 12]. 93 percent of accesses are in the largest equivalence class. The 7 initializations are split as follows [2, 0, 5, 0]. The 260 writes are split as follows [0, 257, 0, 3]. [2025-01-09 17:32:37,092 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:32:36" (1/1) ... [2025-01-09 17:32:37,092 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:32:36" (1/1) ... [2025-01-09 17:32:37,116 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:32:36" (1/1) ... [2025-01-09 17:32:37,118 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:32:36" (1/1) ... [2025-01-09 17:32:37,124 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:32:36" (1/1) ... [2025-01-09 17:32:37,133 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:32:36" (1/1) ... [2025-01-09 17:32:37,138 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:32:36" (1/1) ... [2025-01-09 17:32:37,152 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-09 17:32:37,152 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-09 17:32:37,152 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-09 17:32:37,152 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-09 17:32:37,154 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:32:36" (1/1) ... [2025-01-09 17:32:37,161 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 17:32:37,174 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 17:32:37,191 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-01-09 17:32:37,194 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-01-09 17:32:37,221 INFO L130 BoogieDeclarations]: Found specification of procedure aws_string_is_valid [2025-01-09 17:32:37,221 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_string_is_valid [2025-01-09 17:32:37,221 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_eq_ignore_case [2025-01-09 17:32:37,221 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_eq_ignore_case [2025-01-09 17:32:37,222 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_string_is_allocated_bounded_length [2025-01-09 17:32:37,222 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_string_is_allocated_bounded_length [2025-01-09 17:32:37,222 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2025-01-09 17:32:37,222 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2025-01-09 17:32:37,222 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2025-01-09 17:32:37,222 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2025-01-09 17:32:37,222 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2025-01-09 17:32:37,222 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2025-01-09 17:32:37,222 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-01-09 17:32:37,222 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-01-09 17:32:37,222 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-01-09 17:32:37,222 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-01-09 17:32:37,222 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-01-09 17:32:37,222 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-01-09 17:32:37,222 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-01-09 17:32:37,222 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-09 17:32:37,222 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-01-09 17:32:37,222 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-01-09 17:32:37,222 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-01-09 17:32:37,222 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2025-01-09 17:32:37,222 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-09 17:32:37,222 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-09 17:32:37,222 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2025-01-09 17:32:37,222 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2025-01-09 17:32:37,222 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-01-09 17:32:37,222 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-01-09 17:32:37,222 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2025-01-09 17:32:37,222 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2025-01-09 17:32:37,222 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2025-01-09 17:32:37,222 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2025-01-09 17:32:37,223 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2025-01-09 17:32:37,223 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2025-01-09 17:32:37,223 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2025-01-09 17:32:37,223 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2025-01-09 17:32:37,223 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-01-09 17:32:37,223 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-01-09 17:32:37,223 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-01-09 17:32:37,223 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-01-09 17:32:37,223 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-01-09 17:32:37,223 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-01-09 17:32:37,223 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-01-09 17:32:37,223 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-01-09 17:32:37,447 INFO L234 CfgBuilder]: Building ICFG [2025-01-09 17:32:37,450 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-09 17:32:44,296 INFO L? ?]: Removed 67 outVars from TransFormulas that were not future-live. [2025-01-09 17:32:44,296 INFO L283 CfgBuilder]: Performing block encoding [2025-01-09 17:32:44,308 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-09 17:32:44,309 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-01-09 17:32:44,310 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 05:32:44 BoogieIcfgContainer [2025-01-09 17:32:44,310 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-09 17:32:44,311 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-09 17:32:44,312 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-09 17:32:44,316 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-09 17:32:44,317 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.01 05:32:34" (1/3) ... [2025-01-09 17:32:44,317 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54ce4b2e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 05:32:44, skipping insertion in model container [2025-01-09 17:32:44,317 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:32:36" (2/3) ... [2025-01-09 17:32:44,318 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54ce4b2e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 05:32:44, skipping insertion in model container [2025-01-09 17:32:44,319 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 05:32:44" (3/3) ... [2025-01-09 17:32:44,320 INFO L128 eAbstractionObserver]: Analyzing ICFG aws_string_eq_ignore_case_harness.i [2025-01-09 17:32:44,332 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-09 17:32:44,334 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG aws_string_eq_ignore_case_harness.i that has 10 procedures, 96 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-01-09 17:32:44,385 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-09 17:32:44,395 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;@3a7eed3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-09 17:32:44,395 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-01-09 17:32:44,398 INFO L276 IsEmpty]: Start isEmpty. Operand has 96 states, 62 states have (on average 1.2580645161290323) internal successors, (78), 63 states have internal predecessors, (78), 23 states have call successors, (23), 9 states have call predecessors, (23), 9 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2025-01-09 17:32:44,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2025-01-09 17:32:44,406 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 17:32:44,406 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 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] [2025-01-09 17:32:44,407 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 17:32:44,410 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 17:32:44,411 INFO L85 PathProgramCache]: Analyzing trace with hash -1598907232, now seen corresponding path program 1 times [2025-01-09 17:32:44,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 17:32:44,415 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1525562518] [2025-01-09 17:32:44,415 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 17:32:44,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 17:33:39,719 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 48 statements into 1 equivalence classes. [2025-01-09 17:33:40,221 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 48 of 48 statements. [2025-01-09 17:33:40,222 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 17:33:40,222 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 17:33:40,791 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2025-01-09 17:33:40,793 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 17:33:40,793 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1525562518] [2025-01-09 17:33:40,794 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1525562518] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 17:33:40,794 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [444622128] [2025-01-09 17:33:40,794 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 17:33:40,794 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 17:33:40,795 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 17:33:40,798 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-09 17:33:40,800 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process