./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 8be7027f Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/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_1.5.800.v20200727-1323.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_eq_ignore_case_harness.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 5c58e2434ae79fdf5f8dceab88ea2b6ad3f1a1a8bb44e2d930eaf759f64b3d29 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dk.perfect-tracechecks-8be7027-m [2024-11-12 09:02:11,601 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-12 09:02:11,677 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-12 09:02:11,683 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-12 09:02:11,684 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-12 09:02:11,722 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-12 09:02:11,723 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-12 09:02:11,724 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-12 09:02:11,725 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-12 09:02:11,726 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-12 09:02:11,727 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-12 09:02:11,728 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-12 09:02:11,728 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-12 09:02:11,730 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-12 09:02:11,731 INFO L153 SettingsManager]: * Use SBE=true [2024-11-12 09:02:11,731 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-12 09:02:11,731 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-12 09:02:11,732 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-12 09:02:11,732 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-12 09:02:11,732 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-12 09:02:11,733 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-12 09:02:11,733 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-12 09:02:11,737 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-12 09:02:11,737 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-12 09:02:11,738 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-12 09:02:11,738 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-12 09:02:11,738 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-12 09:02:11,738 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-12 09:02:11,739 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-12 09:02:11,739 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-12 09:02:11,739 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-12 09:02:11,739 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-12 09:02:11,740 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-12 09:02:11,740 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-12 09:02:11,740 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-12 09:02:11,741 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-12 09:02:11,742 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-12 09:02:11,743 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-12 09:02:11,743 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-12 09:02:11,743 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5c58e2434ae79fdf5f8dceab88ea2b6ad3f1a1a8bb44e2d930eaf759f64b3d29 [2024-11-12 09:02:12,023 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-12 09:02:12,050 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-12 09:02:12,055 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-12 09:02:12,056 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-12 09:02:12,057 INFO L274 PluginConnector]: CDTParser initialized [2024-11-12 09:02:12,058 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_string_eq_ignore_case_harness.i [2024-11-12 09:02:13,549 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-12 09:02:14,038 INFO L384 CDTParser]: Found 1 translation units. [2024-11-12 09:02:14,039 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_string_eq_ignore_case_harness.i [2024-11-12 09:02:14,083 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eade36395/3fa57249947b46a883fcf64581fbeac6/FLAGdf3c4e281 [2024-11-12 09:02:14,103 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eade36395/3fa57249947b46a883fcf64581fbeac6 [2024-11-12 09:02:14,106 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-12 09:02:14,108 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-12 09:02:14,109 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-12 09:02:14,109 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-12 09:02:14,116 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-12 09:02:14,116 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 09:02:14" (1/1) ... [2024-11-12 09:02:14,117 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@235f14d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 09:02:14, skipping insertion in model container [2024-11-12 09:02:14,117 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 09:02:14" (1/1) ... [2024-11-12 09:02:14,251 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-12 09:02:14,568 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_eq_ignore_case_harness.i[4499,4512] [2024-11-12 09:02:14,578 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_eq_ignore_case_harness.i[4559,4572] [2024-11-12 09:02:15,478 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 09:02:15,478 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 09:02:15,479 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 09:02:15,479 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 09:02:15,485 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 09:02:15,503 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 09:02:15,506 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 09:02:15,511 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 09:02:15,511 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 09:02:16,125 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 09:02:16,126 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 09:02:16,159 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-12 09:02:16,211 INFO L200 MainTranslator]: Completed pre-run [2024-11-12 09:02:16,229 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_eq_ignore_case_harness.i[4499,4512] [2024-11-12 09:02:16,230 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_eq_ignore_case_harness.i[4559,4572] [2024-11-12 09:02:16,277 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 09:02:16,278 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 09:02:16,279 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 09:02:16,280 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 09:02:16,280 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 09:02:16,292 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 09:02:16,293 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 09:02:16,294 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 09:02:16,297 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 09:02:16,553 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : "+r"(index)); [8588] [2024-11-12 09:02:16,556 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 09:02:16,556 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 09:02:16,568 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-12 09:02:16,756 INFO L204 MainTranslator]: Completed translation [2024-11-12 09:02:16,757 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 09:02:16 WrapperNode [2024-11-12 09:02:16,757 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-12 09:02:16,759 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-12 09:02:16,759 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-12 09:02:16,759 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-12 09:02:16,767 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 09:02:16" (1/1) ... [2024-11-12 09:02:16,877 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 09:02:16" (1/1) ... [2024-11-12 09:02:16,947 INFO L138 Inliner]: procedures = 670, calls = 2270, calls flagged for inlining = 57, calls inlined = 5, statements flattened = 373 [2024-11-12 09:02:16,949 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-12 09:02:16,950 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-12 09:02:16,950 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-12 09:02:16,950 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-12 09:02:16,961 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 09:02:16" (1/1) ... [2024-11-12 09:02:16,962 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 09:02:16" (1/1) ... [2024-11-12 09:02:16,970 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 09:02:16" (1/1) ... [2024-11-12 09:02:17,004 INFO L175 MemorySlicer]: Split 278 memory accesses to 4 slices as follows [2, 5, 12, 259]. 93 percent of accesses are in the largest equivalence class. The 7 initializations are split as follows [2, 5, 0, 0]. The 260 writes are split as follows [0, 0, 3, 257]. [2024-11-12 09:02:17,004 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 09:02:16" (1/1) ... [2024-11-12 09:02:17,004 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 09:02:16" (1/1) ... [2024-11-12 09:02:17,026 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 09:02:16" (1/1) ... [2024-11-12 09:02:17,030 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 09:02:16" (1/1) ... [2024-11-12 09:02:17,035 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 09:02:16" (1/1) ... [2024-11-12 09:02:17,039 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 09:02:16" (1/1) ... [2024-11-12 09:02:17,047 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-12 09:02:17,048 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-12 09:02:17,048 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-12 09:02:17,049 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-12 09:02:17,049 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 09:02:16" (1/1) ... [2024-11-12 09:02:17,062 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-12 09:02:17,081 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 09:02:17,102 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) [2024-11-12 09:02:17,108 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 [2024-11-12 09:02:17,154 INFO L130 BoogieDeclarations]: Found specification of procedure aws_string_is_valid [2024-11-12 09:02:17,154 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_string_is_valid [2024-11-12 09:02:17,154 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_eq_ignore_case [2024-11-12 09:02:17,155 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_eq_ignore_case [2024-11-12 09:02:17,156 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_string_is_allocated_bounded_length [2024-11-12 09:02:17,156 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_string_is_allocated_bounded_length [2024-11-12 09:02:17,156 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2024-11-12 09:02:17,156 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2024-11-12 09:02:17,156 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-11-12 09:02:17,156 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-11-12 09:02:17,156 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-11-12 09:02:17,156 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-11-12 09:02:17,156 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-12 09:02:17,156 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-12 09:02:17,157 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-12 09:02:17,157 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-12 09:02:17,157 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-12 09:02:17,157 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-12 09:02:17,157 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-12 09:02:17,157 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-12 09:02:17,157 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-12 09:02:17,157 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-12 09:02:17,157 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-12 09:02:17,157 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-12 09:02:17,157 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-12 09:02:17,157 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-12 09:02:17,158 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2024-11-12 09:02:17,158 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2024-11-12 09:02:17,158 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-12 09:02:17,158 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-12 09:02:17,158 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-12 09:02:17,158 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-12 09:02:17,158 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-12 09:02:17,158 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-12 09:02:17,158 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2024-11-12 09:02:17,158 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2024-11-12 09:02:17,158 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2024-11-12 09:02:17,158 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2024-11-12 09:02:17,159 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-12 09:02:17,159 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-12 09:02:17,159 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-12 09:02:17,159 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-12 09:02:17,159 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-12 09:02:17,162 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-12 09:02:17,162 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-12 09:02:17,162 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-12 09:02:17,476 INFO L238 CfgBuilder]: Building ICFG [2024-11-12 09:02:17,479 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-12 09:02:24,660 INFO L? ?]: Removed 68 outVars from TransFormulas that were not future-live. [2024-11-12 09:02:24,660 INFO L287 CfgBuilder]: Performing block encoding [2024-11-12 09:02:24,676 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-12 09:02:24,677 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-12 09:02:24,678 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 09:02:24 BoogieIcfgContainer [2024-11-12 09:02:24,678 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-12 09:02:24,680 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-12 09:02:24,680 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-12 09:02:24,683 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-12 09:02:24,684 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 09:02:14" (1/3) ... [2024-11-12 09:02:24,684 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@310ebbc3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 09:02:24, skipping insertion in model container [2024-11-12 09:02:24,685 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 09:02:16" (2/3) ... [2024-11-12 09:02:24,685 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@310ebbc3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 09:02:24, skipping insertion in model container [2024-11-12 09:02:24,687 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 09:02:24" (3/3) ... [2024-11-12 09:02:24,688 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_string_eq_ignore_case_harness.i [2024-11-12 09:02:24,705 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-12 09:02:24,706 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-12 09:02:24,780 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-12 09:02:24,789 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;@558d0eaf, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-12 09:02:24,790 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-12 09:02:24,795 INFO L276 IsEmpty]: Start isEmpty. Operand has 98 states, 64 states have (on average 1.265625) internal successors, (81), 65 states have internal predecessors, (81), 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) [2024-11-12 09:02:24,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2024-11-12 09:02:24,805 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 09:02:24,806 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] [2024-11-12 09:02:24,808 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 09:02:24,816 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 09:02:24,817 INFO L85 PathProgramCache]: Analyzing trace with hash 1426397344, now seen corresponding path program 1 times [2024-11-12 09:02:24,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 09:02:24,827 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [420530231] [2024-11-12 09:02:24,828 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 09:02:24,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 09:03:18,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 09:03:19,153 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-12 09:03:19,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 09:03:19,174 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-12 09:03:19,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 09:03:19,190 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-12 09:03:19,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 09:03:19,202 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-12 09:03:19,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 09:03:19,213 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-12 09:03:19,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 09:03:19,223 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-12 09:03:19,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 09:03:19,248 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-11-12 09:03:19,249 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 09:03:19,249 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [420530231] [2024-11-12 09:03:19,250 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [420530231] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 09:03:19,250 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 09:03:19,250 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-12 09:03:19,252 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [403126941] [2024-11-12 09:03:19,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 09:03:19,258 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-12 09:03:19,258 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 09:03:19,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-12 09:03:19,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-12 09:03:19,287 INFO L87 Difference]: Start difference. First operand has 98 states, 64 states have (on average 1.265625) internal successors, (81), 65 states have internal predecessors, (81), 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) Second operand has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-12 09:03:19,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 09:03:19,325 INFO L93 Difference]: Finished difference Result 191 states and 259 transitions. [2024-11-12 09:03:19,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-12 09:03:19,328 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 48 [2024-11-12 09:03:19,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 09:03:19,337 INFO L225 Difference]: With dead ends: 191 [2024-11-12 09:03:19,338 INFO L226 Difference]: Without dead ends: 93 [2024-11-12 09:03:19,343 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-12 09:03:19,347 INFO L435 NwaCegarLoop]: 124 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 124 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-12 09:03:19,348 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-12 09:03:19,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2024-11-12 09:03:19,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 93. [2024-11-12 09:03:19,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 60 states have (on average 1.2166666666666666) internal successors, (73), 61 states have internal predecessors, (73), 23 states have call successors, (23), 9 states have call predecessors, (23), 9 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-12 09:03:19,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 118 transitions. [2024-11-12 09:03:19,388 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 118 transitions. Word has length 48 [2024-11-12 09:03:19,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 09:03:19,389 INFO L471 AbstractCegarLoop]: Abstraction has 93 states and 118 transitions. [2024-11-12 09:03:19,389 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-12 09:03:19,390 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 118 transitions. [2024-11-12 09:03:19,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2024-11-12 09:03:19,392 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 09:03:19,393 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] [2024-11-12 09:03:19,393 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-12 09:03:19,393 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 09:03:19,394 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 09:03:19,394 INFO L85 PathProgramCache]: Analyzing trace with hash -200506784, now seen corresponding path program 1 times [2024-11-12 09:03:19,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 09:03:19,394 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1350181006] [2024-11-12 09:03:19,395 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 09:03:19,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms