./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 023d838f 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-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-10 11:09:14,559 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-10 11:09:14,642 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-10 11:09:14,650 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-10 11:09:14,652 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-10 11:09:14,678 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-10 11:09:14,679 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-10 11:09:14,680 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-10 11:09:14,680 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-10 11:09:14,681 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-10 11:09:14,681 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-10 11:09:14,682 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-10 11:09:14,682 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-10 11:09:14,683 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-10 11:09:14,685 INFO L153 SettingsManager]: * Use SBE=true [2024-11-10 11:09:14,685 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-10 11:09:14,685 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-10 11:09:14,686 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-10 11:09:14,686 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-10 11:09:14,686 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-10 11:09:14,688 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-10 11:09:14,689 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-10 11:09:14,689 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-10 11:09:14,689 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-10 11:09:14,690 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-10 11:09:14,690 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-10 11:09:14,691 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-10 11:09:14,691 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-10 11:09:14,691 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-10 11:09:14,692 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 11:09:14,692 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-10 11:09:14,699 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-10 11:09:14,699 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-10 11:09:14,699 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-10 11:09:14,700 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-10 11:09:14,700 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-10 11:09:14,700 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-10 11:09:14,700 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-10 11:09:14,701 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-10 11:09:14,701 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5c58e2434ae79fdf5f8dceab88ea2b6ad3f1a1a8bb44e2d930eaf759f64b3d29 [2024-11-10 11:09:14,952 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-10 11:09:14,981 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-10 11:09:14,984 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-10 11:09:14,986 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-10 11:09:14,986 INFO L274 PluginConnector]: CDTParser initialized [2024-11-10 11:09:14,988 INFO L431 ainManager$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 [2024-11-10 11:09:16,488 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-10 11:09:16,952 INFO L384 CDTParser]: Found 1 translation units. [2024-11-10 11:09:16,952 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_string_eq_ignore_case_harness.i [2024-11-10 11:09:17,002 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c24188026/de16db7f59d84edb830eab375aaff15d/FLAG135039da9 [2024-11-10 11:09:17,022 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c24188026/de16db7f59d84edb830eab375aaff15d [2024-11-10 11:09:17,027 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-10 11:09:17,029 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-10 11:09:17,033 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-10 11:09:17,034 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-10 11:09:17,039 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-10 11:09:17,040 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 11:09:17" (1/1) ... [2024-11-10 11:09:17,041 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@77da16b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:09:17, skipping insertion in model container [2024-11-10 11:09:17,041 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 11:09:17" (1/1) ... [2024-11-10 11:09:17,142 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-10 11:09:17,523 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] [2024-11-10 11:09:17,534 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] [2024-11-10 11:09:18,469 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 11:09:18,470 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 11:09:18,471 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 11:09:18,471 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 11:09:18,474 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 11:09:18,502 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 11:09:18,504 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 11:09:18,506 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 11:09:18,506 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 11:09:19,579 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 11:09:19,580 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 11:09:19,620 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 11:09:19,674 INFO L200 MainTranslator]: Completed pre-run [2024-11-10 11:09:19,688 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] [2024-11-10 11:09:19,689 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] [2024-11-10 11:09:19,741 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 11:09:19,742 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 11:09:19,743 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 11:09:19,743 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 11:09:19,748 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 11:09:19,760 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 11:09:19,761 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 11:09:19,762 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 11:09:19,765 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 11:09:19,914 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : "+r"(index)); [8588] [2024-11-10 11:09:19,917 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 11:09:19,917 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 11:09:19,939 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 11:09:20,159 INFO L204 MainTranslator]: Completed translation [2024-11-10 11:09:20,160 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:09:20 WrapperNode [2024-11-10 11:09:20,161 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-10 11:09:20,162 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-10 11:09:20,162 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-10 11:09:20,162 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-10 11:09:20,171 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:09:20" (1/1) ... [2024-11-10 11:09:20,268 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:09:20" (1/1) ... [2024-11-10 11:09:20,341 INFO L138 Inliner]: procedures = 670, calls = 2270, calls flagged for inlining = 57, calls inlined = 5, statements flattened = 373 [2024-11-10 11:09:20,341 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-10 11:09:20,342 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-10 11:09:20,342 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-10 11:09:20,342 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-10 11:09:20,353 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:09:20" (1/1) ... [2024-11-10 11:09:20,354 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:09:20" (1/1) ... [2024-11-10 11:09:20,363 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:09:20" (1/1) ... [2024-11-10 11:09:20,404 INFO L175 MemorySlicer]: Split 278 memory accesses to 4 slices as follows [2, 12, 259, 5]. 93 percent of accesses are in the largest equivalence class. The 7 initializations are split as follows [2, 0, 0, 5]. The 260 writes are split as follows [0, 3, 257, 0]. [2024-11-10 11:09:20,404 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:09:20" (1/1) ... [2024-11-10 11:09:20,405 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:09:20" (1/1) ... [2024-11-10 11:09:20,426 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:09:20" (1/1) ... [2024-11-10 11:09:20,427 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:09:20" (1/1) ... [2024-11-10 11:09:20,432 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:09:20" (1/1) ... [2024-11-10 11:09:20,442 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:09:20" (1/1) ... [2024-11-10 11:09:20,452 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-10 11:09:20,453 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-10 11:09:20,453 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-10 11:09:20,453 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-10 11:09:20,457 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:09:20" (1/1) ... [2024-11-10 11:09:20,464 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 11:09:20,475 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 11:09:20,493 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) [2024-11-10 11:09:20,544 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 [2024-11-10 11:09:20,632 INFO L130 BoogieDeclarations]: Found specification of procedure aws_string_is_valid [2024-11-10 11:09:20,633 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_string_is_valid [2024-11-10 11:09:20,633 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_eq_ignore_case [2024-11-10 11:09:20,634 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_eq_ignore_case [2024-11-10 11:09:20,637 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_string_is_allocated_bounded_length [2024-11-10 11:09:20,637 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_string_is_allocated_bounded_length [2024-11-10 11:09:20,637 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2024-11-10 11:09:20,637 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2024-11-10 11:09:20,637 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-11-10 11:09:20,638 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-11-10 11:09:20,638 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-11-10 11:09:20,638 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-11-10 11:09:20,638 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-10 11:09:20,638 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-10 11:09:20,638 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-10 11:09:20,638 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-10 11:09:20,638 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-10 11:09:20,638 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-10 11:09:20,638 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-10 11:09:20,638 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-10 11:09:20,638 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-10 11:09:20,638 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-10 11:09:20,639 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-10 11:09:20,639 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-10 11:09:20,639 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-10 11:09:20,639 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-10 11:09:20,639 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2024-11-10 11:09:20,639 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2024-11-10 11:09:20,639 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-10 11:09:20,639 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-10 11:09:20,639 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-10 11:09:20,639 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-10 11:09:20,639 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-10 11:09:20,639 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-10 11:09:20,639 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2024-11-10 11:09:20,640 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2024-11-10 11:09:20,640 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2024-11-10 11:09:20,640 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2024-11-10 11:09:20,640 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-10 11:09:20,640 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-10 11:09:20,640 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-10 11:09:20,644 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-10 11:09:20,645 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-10 11:09:20,645 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-10 11:09:20,645 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-10 11:09:20,645 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-10 11:09:21,033 INFO L256 CfgBuilder]: Building ICFG [2024-11-10 11:09:21,036 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-10 11:09:21,086 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L6887: havoc #t~malloc557.base, #t~malloc557.offset; [2024-11-10 11:09:21,098 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L261: havoc #t~nondet4; [2024-11-10 11:09:21,143 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L6257: havoc #t~mem472;havoc #t~short473;havoc #t~mem474;havoc #t~mem475;havoc #t~short476; [2024-11-10 11:09:21,148 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L266: havoc #t~nondet9; [2024-11-10 11:09:21,252 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L6804: havoc #t~ret543#1.base, #t~ret543#1.offset; [2024-11-10 11:09:27,871 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L7455: havoc aws_string_eq_ignore_case_#t~mem697#1;havoc aws_string_eq_ignore_case_#t~mem698#1;havoc aws_string_eq_ignore_case_#t~ret699#1; [2024-11-10 11:09:27,971 INFO L? ?]: Removed 68 outVars from TransFormulas that were not future-live. [2024-11-10 11:09:27,971 INFO L307 CfgBuilder]: Performing block encoding [2024-11-10 11:09:27,989 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-10 11:09:27,989 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-10 11:09:27,990 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 11:09:27 BoogieIcfgContainer [2024-11-10 11:09:27,990 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-10 11:09:27,992 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-10 11:09:27,992 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-10 11:09:27,995 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-10 11:09:27,995 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 11:09:17" (1/3) ... [2024-11-10 11:09:27,996 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13b1c804 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 11:09:27, skipping insertion in model container [2024-11-10 11:09:27,996 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:09:20" (2/3) ... [2024-11-10 11:09:27,996 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13b1c804 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 11:09:27, skipping insertion in model container [2024-11-10 11:09:27,997 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 11:09:27" (3/3) ... [2024-11-10 11:09:27,998 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_string_eq_ignore_case_harness.i [2024-11-10 11:09:28,013 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-10 11:09:28,013 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-10 11:09:28,077 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-10 11:09:28,083 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;@71d6d618, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-10 11:09:28,083 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-10 11:09:28,087 INFO L276 IsEmpty]: Start isEmpty. Operand has 99 states, 65 states have (on average 1.2615384615384615) internal successors, (82), 66 states have internal predecessors, (82), 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) [2024-11-10 11:09:28,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2024-11-10 11:09:28,096 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 11:09:28,097 INFO L215 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] [2024-11-10 11:09:28,097 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 11:09:28,102 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 11:09:28,102 INFO L85 PathProgramCache]: Analyzing trace with hash 748617554, now seen corresponding path program 1 times [2024-11-10 11:09:28,111 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 11:09:28,112 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2048565334] [2024-11-10 11:09:28,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 11:09:28,112 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 11:10:21,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 11:10:21,919 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-10 11:10:21,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 11:10:21,936 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-10 11:10:21,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 11:10:21,949 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-10 11:10:21,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 11:10:21,966 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-10 11:10:21,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 11:10:21,975 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-10 11:10:21,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 11:10:21,986 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-10 11:10:21,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 11:10:22,015 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-11-10 11:10:22,016 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 11:10:22,016 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2048565334] [2024-11-10 11:10:22,017 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2048565334] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 11:10:22,017 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 11:10:22,018 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-10 11:10:22,019 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1276831657] [2024-11-10 11:10:22,020 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 11:10:22,024 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-10 11:10:22,024 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 11:10:22,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-10 11:10:22,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-10 11:10:22,053 INFO L87 Difference]: Start difference. First operand has 99 states, 65 states have (on average 1.2615384615384615) internal successors, (82), 66 states have internal predecessors, (82), 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) [2024-11-10 11:10:22,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 11:10:22,095 INFO L93 Difference]: Finished difference Result 192 states and 260 transitions. [2024-11-10 11:10:22,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-10 11:10:22,097 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 [2024-11-10 11:10:22,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 11:10:22,106 INFO L225 Difference]: With dead ends: 192 [2024-11-10 11:10:22,106 INFO L226 Difference]: Without dead ends: 93 [2024-11-10 11:10:22,111 INFO L431 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 [2024-11-10 11:10:22,116 INFO L432 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 [2024-11-10 11:10:22,117 INFO L433 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] [2024-11-10 11:10:22,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2024-11-10 11:10:22,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 93. [2024-11-10 11:10:22,162 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) [2024-11-10 11:10:22,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 118 transitions. [2024-11-10 11:10:22,167 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 118 transitions. Word has length 48 [2024-11-10 11:10:22,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 11:10:22,168 INFO L471 AbstractCegarLoop]: Abstraction has 93 states and 118 transitions. [2024-11-10 11:10:22,168 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) [2024-11-10 11:10:22,169 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 118 transitions. [2024-11-10 11:10:22,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2024-11-10 11:10:22,171 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 11:10:22,171 INFO L215 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] [2024-11-10 11:10:22,172 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-10 11:10:22,172 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 11:10:22,172 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 11:10:22,173 INFO L85 PathProgramCache]: Analyzing trace with hash -64834510, now seen corresponding path program 1 times [2024-11-10 11:10:22,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 11:10:22,173 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [354745310] [2024-11-10 11:10:22,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 11:10:22,174 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms