./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_string_compare_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version fca748b1 Calling Ultimate with: /root/.sdkman/candidates/java/current/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 /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_string_compare_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 66fb9bfec5c458b51d86deb6748dd65f162e7ac6a772af5f3fec59d101a18d8d --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dd.update-z3-fca748b-m [2024-11-20 10:16:14,555 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-20 10:16:14,646 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-20 10:16:14,651 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-20 10:16:14,652 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-20 10:16:14,685 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-20 10:16:14,686 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-20 10:16:14,686 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-20 10:16:14,687 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-20 10:16:14,688 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-20 10:16:14,689 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-20 10:16:14,689 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-20 10:16:14,689 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-20 10:16:14,691 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-20 10:16:14,691 INFO L153 SettingsManager]: * Use SBE=true [2024-11-20 10:16:14,692 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-20 10:16:14,692 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-20 10:16:14,692 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-20 10:16:14,693 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-20 10:16:14,693 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-20 10:16:14,693 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-20 10:16:14,696 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-20 10:16:14,696 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-20 10:16:14,697 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-20 10:16:14,697 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-20 10:16:14,697 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-20 10:16:14,698 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-20 10:16:14,698 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-20 10:16:14,698 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-20 10:16:14,698 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 10:16:14,699 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-20 10:16:14,699 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-20 10:16:14,700 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-20 10:16:14,700 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-20 10:16:14,700 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-20 10:16:14,700 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-20 10:16:14,700 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-20 10:16:14,701 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-20 10:16:14,701 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-20 10:16:14,701 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 66fb9bfec5c458b51d86deb6748dd65f162e7ac6a772af5f3fec59d101a18d8d [2024-11-20 10:16:14,946 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-20 10:16:14,975 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-20 10:16:14,978 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-20 10:16:14,979 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-20 10:16:14,980 INFO L274 PluginConnector]: CDTParser initialized [2024-11-20 10:16:14,981 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_string_compare_harness.i [2024-11-20 10:16:16,391 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-20 10:16:16,851 INFO L384 CDTParser]: Found 1 translation units. [2024-11-20 10:16:16,852 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_string_compare_harness.i [2024-11-20 10:16:16,901 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/921bbdd91/fd65f35487a34f91bd7aea8bbdb17ac9/FLAG42e547295 [2024-11-20 10:16:16,967 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/921bbdd91/fd65f35487a34f91bd7aea8bbdb17ac9 [2024-11-20 10:16:16,971 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-20 10:16:16,972 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-20 10:16:16,975 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-20 10:16:16,976 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-20 10:16:16,981 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-20 10:16:16,981 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:16:16" (1/1) ... [2024-11-20 10:16:16,982 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@620d3bdc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:16:16, skipping insertion in model container [2024-11-20 10:16:16,982 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:16:16" (1/1) ... [2024-11-20 10:16:17,113 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-20 10:16:17,442 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_string_compare_harness.i[4492,4505] [2024-11-20 10:16:17,449 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_string_compare_harness.i[4552,4565] [2024-11-20 10:16:18,162 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-20 10:16:18,165 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-20 10:16:18,166 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-20 10:16:18,166 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-20 10:16:18,167 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-20 10:16:18,186 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-20 10:16:18,187 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-20 10:16:18,188 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-20 10:16:18,189 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-20 10:16:18,693 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-20 10:16:18,697 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-20 10:16:18,777 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 10:16:18,847 INFO L200 MainTranslator]: Completed pre-run [2024-11-20 10:16:18,867 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_string_compare_harness.i[4492,4505] [2024-11-20 10:16:18,868 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_string_compare_harness.i[4552,4565] [2024-11-20 10:16:18,915 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-20 10:16:18,915 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-20 10:16:18,915 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-20 10:16:18,916 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-20 10:16:18,916 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-20 10:16:18,923 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-20 10:16:18,923 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-20 10:16:18,924 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-20 10:16:18,925 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-20 10:16:19,169 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : "+r"(index)); [8253] [2024-11-20 10:16:19,172 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-20 10:16:19,173 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-20 10:16:19,185 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [8739-8750] [2024-11-20 10:16:19,214 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 10:16:19,456 INFO L204 MainTranslator]: Completed translation [2024-11-20 10:16:19,457 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:16:19 WrapperNode [2024-11-20 10:16:19,457 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-20 10:16:19,458 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-20 10:16:19,459 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-20 10:16:19,459 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-20 10:16:19,467 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:16:19" (1/1) ... [2024-11-20 10:16:19,590 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:16:19" (1/1) ... [2024-11-20 10:16:19,693 INFO L138 Inliner]: procedures = 682, calls = 2786, calls flagged for inlining = 57, calls inlined = 5, statements flattened = 823 [2024-11-20 10:16:19,693 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-20 10:16:19,695 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-20 10:16:19,695 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-20 10:16:19,695 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-20 10:16:19,707 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:16:19" (1/1) ... [2024-11-20 10:16:19,707 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:16:19" (1/1) ... [2024-11-20 10:16:19,723 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:16:19" (1/1) ... [2024-11-20 10:16:19,807 INFO L175 MemorySlicer]: Split 529 memory accesses to 6 slices as follows [2, 257, 238, 5, 16, 11]. 49 percent of accesses are in the largest equivalence class. The 29 initializations are split as follows [2, 0, 6, 5, 16, 0]. The 492 writes are split as follows [0, 257, 232, 0, 0, 3]. [2024-11-20 10:16:19,810 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:16:19" (1/1) ... [2024-11-20 10:16:19,811 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:16:19" (1/1) ... [2024-11-20 10:16:19,848 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:16:19" (1/1) ... [2024-11-20 10:16:19,855 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:16:19" (1/1) ... [2024-11-20 10:16:19,866 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:16:19" (1/1) ... [2024-11-20 10:16:19,871 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:16:19" (1/1) ... [2024-11-20 10:16:19,887 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-20 10:16:19,888 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-20 10:16:19,888 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-20 10:16:19,888 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-20 10:16:19,893 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:16:19" (1/1) ... [2024-11-20 10:16:19,900 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 10:16:19,912 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 10:16:19,929 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) [2024-11-20 10:16:19,932 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 [2024-11-20 10:16:19,976 INFO L130 BoogieDeclarations]: Found specification of procedure aws_string_is_valid [2024-11-20 10:16:19,976 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_string_is_valid [2024-11-20 10:16:19,977 INFO L130 BoogieDeclarations]: Found specification of procedure aws_string_compare [2024-11-20 10:16:19,977 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_string_compare [2024-11-20 10:16:19,977 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_string_is_allocated_bounded_length [2024-11-20 10:16:19,977 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_string_is_allocated_bounded_length [2024-11-20 10:16:19,977 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2024-11-20 10:16:19,977 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2024-11-20 10:16:19,978 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-11-20 10:16:19,978 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-11-20 10:16:19,979 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-11-20 10:16:19,979 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-11-20 10:16:19,979 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2024-11-20 10:16:19,979 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2024-11-20 10:16:19,979 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-20 10:16:19,979 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-20 10:16:19,980 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-20 10:16:19,980 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-20 10:16:19,980 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-20 10:16:19,980 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-20 10:16:19,980 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-20 10:16:19,980 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-20 10:16:19,980 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-20 10:16:19,981 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-20 10:16:19,981 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-20 10:16:19,981 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-20 10:16:19,981 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-20 10:16:19,981 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-20 10:16:19,981 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-20 10:16:19,982 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-11-20 10:16:19,982 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-20 10:16:19,982 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-20 10:16:19,982 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2024-11-20 10:16:19,982 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2024-11-20 10:16:19,982 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-11-20 10:16:19,983 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-11-20 10:16:19,983 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-11-20 10:16:19,983 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-11-20 10:16:19,983 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-11-20 10:16:19,983 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2024-11-20 10:16:19,983 INFO L130 BoogieDeclarations]: Found specification of procedure aws_string_bytes [2024-11-20 10:16:19,984 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_string_bytes [2024-11-20 10:16:19,984 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-20 10:16:19,984 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-20 10:16:19,984 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-20 10:16:19,984 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-20 10:16:19,984 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-20 10:16:19,984 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-20 10:16:19,985 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-11-20 10:16:19,985 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-11-20 10:16:19,985 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2024-11-20 10:16:19,985 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2024-11-20 10:16:19,986 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2024-11-20 10:16:19,986 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2024-11-20 10:16:19,986 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-20 10:16:19,986 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-20 10:16:19,986 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-20 10:16:19,986 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-20 10:16:19,987 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-20 10:16:19,987 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-20 10:16:19,987 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-20 10:16:19,987 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-20 10:16:19,987 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-20 10:16:19,988 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-20 10:16:19,988 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-20 10:16:19,988 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-20 10:16:20,271 INFO L238 CfgBuilder]: Building ICFG [2024-11-20 10:16:20,273 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-20 10:16:28,263 INFO L? ?]: Removed 81 outVars from TransFormulas that were not future-live. [2024-11-20 10:16:28,263 INFO L287 CfgBuilder]: Performing block encoding [2024-11-20 10:16:28,279 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-20 10:16:28,279 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-20 10:16:28,279 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:16:28 BoogieIcfgContainer [2024-11-20 10:16:28,279 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-20 10:16:28,282 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-20 10:16:28,283 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-20 10:16:28,286 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-20 10:16:28,286 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 10:16:16" (1/3) ... [2024-11-20 10:16:28,287 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2bd4b275 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 10:16:28, skipping insertion in model container [2024-11-20 10:16:28,287 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:16:19" (2/3) ... [2024-11-20 10:16:28,287 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2bd4b275 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 10:16:28, skipping insertion in model container [2024-11-20 10:16:28,289 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:16:28" (3/3) ... [2024-11-20 10:16:28,290 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_string_compare_harness.i [2024-11-20 10:16:28,306 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-20 10:16:28,306 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-20 10:16:28,370 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-20 10:16:28,378 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;@94ee95, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-20 10:16:28,379 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-20 10:16:28,383 INFO L276 IsEmpty]: Start isEmpty. Operand has 121 states, 76 states have (on average 1.2763157894736843) internal successors, (97), 77 states have internal predecessors, (97), 33 states have call successors, (33), 10 states have call predecessors, (33), 10 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) [2024-11-20 10:16:28,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2024-11-20 10:16:28,396 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 10:16:28,397 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 10:16:28,398 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 10:16:28,403 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 10:16:28,404 INFO L85 PathProgramCache]: Analyzing trace with hash 127762490, now seen corresponding path program 1 times [2024-11-20 10:16:28,412 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 10:16:28,413 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1231318723] [2024-11-20 10:16:28,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 10:16:28,413 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 10:17:44,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 10:17:45,081 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-20 10:17:45,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 10:17:45,099 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-20 10:17:45,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 10:17:45,118 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-20 10:17:45,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 10:17:45,142 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-11-20 10:17:45,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 10:17:45,156 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-20 10:17:45,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 10:17:45,176 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-20 10:17:45,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 10:17:45,191 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-20 10:17:45,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 10:17:45,200 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-20 10:17:45,200 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 10:17:45,201 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1231318723] [2024-11-20 10:17:45,201 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1231318723] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 10:17:45,201 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 10:17:45,202 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 10:17:45,203 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1476918058] [2024-11-20 10:17:45,204 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 10:17:45,208 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-20 10:17:45,209 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 10:17:45,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-20 10:17:45,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-20 10:17:45,236 INFO L87 Difference]: Start difference. First operand has 121 states, 76 states have (on average 1.2763157894736843) internal successors, (97), 77 states have internal predecessors, (97), 33 states have call successors, (33), 10 states have call predecessors, (33), 10 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) Second operand has 2 states, 2 states have (on average 13.0) internal successors, (26), 2 states have internal predecessors, (26), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-20 10:17:45,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 10:17:45,281 INFO L93 Difference]: Finished difference Result 237 states and 336 transitions. [2024-11-20 10:17:45,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-20 10:17:45,284 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 13.0) internal successors, (26), 2 states have internal predecessors, (26), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 50 [2024-11-20 10:17:45,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 10:17:45,293 INFO L225 Difference]: With dead ends: 237 [2024-11-20 10:17:45,293 INFO L226 Difference]: Without dead ends: 116 [2024-11-20 10:17:45,300 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-20 10:17:45,305 INFO L432 NwaCegarLoop]: 161 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, 161 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 [2024-11-20 10:17:45,306 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 161 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 10:17:45,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2024-11-20 10:17:45,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 116. [2024-11-20 10:17:45,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116 states, 72 states have (on average 1.25) internal successors, (90), 73 states have internal predecessors, (90), 33 states have call successors, (33), 10 states have call predecessors, (33), 10 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2024-11-20 10:17:45,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 155 transitions. [2024-11-20 10:17:45,365 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 155 transitions. Word has length 50 [2024-11-20 10:17:45,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 10:17:45,367 INFO L471 AbstractCegarLoop]: Abstraction has 116 states and 155 transitions. [2024-11-20 10:17:45,367 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 13.0) internal successors, (26), 2 states have internal predecessors, (26), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-20 10:17:45,367 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 155 transitions. [2024-11-20 10:17:45,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2024-11-20 10:17:45,370 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 10:17:45,371 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 10:17:45,371 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-20 10:17:45,371 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 10:17:45,372 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 10:17:45,372 INFO L85 PathProgramCache]: Analyzing trace with hash -460652934, now seen corresponding path program 1 times [2024-11-20 10:17:45,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 10:17:45,372 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2059845529] [2024-11-20 10:17:45,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 10:17:45,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms