./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_string_compare_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c7c6ca5d 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_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-?-c7c6ca5-m [2024-11-09 03:21:10,665 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 03:21:10,750 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-09 03:21:10,756 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 03:21:10,759 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 03:21:10,791 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 03:21:10,794 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 03:21:10,794 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 03:21:10,795 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-09 03:21:10,795 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-09 03:21:10,796 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 03:21:10,796 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 03:21:10,797 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 03:21:10,799 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 03:21:10,799 INFO L153 SettingsManager]: * Use SBE=true [2024-11-09 03:21:10,800 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 03:21:10,801 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 03:21:10,802 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 03:21:10,804 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 03:21:10,805 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 03:21:10,807 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 03:21:10,807 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 03:21:10,808 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 03:21:10,808 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 03:21:10,808 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 03:21:10,809 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 03:21:10,809 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 03:21:10,809 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 03:21:10,809 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 03:21:10,810 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 03:21:10,810 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 03:21:10,810 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 03:21:10,811 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 03:21:10,811 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-09 03:21:10,813 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 03:21:10,813 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 03:21:10,814 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-09 03:21:10,814 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-09 03:21:10,814 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 03:21:10,815 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 66fb9bfec5c458b51d86deb6748dd65f162e7ac6a772af5f3fec59d101a18d8d [2024-11-09 03:21:11,124 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 03:21:11,160 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 03:21:11,163 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 03:21:11,165 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 03:21:11,166 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 03:21:11,167 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_string_compare_harness.i [2024-11-09 03:21:12,723 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 03:21:13,290 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 03:21:13,292 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_string_compare_harness.i [2024-11-09 03:21:13,345 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8f4a4ea67/0cd91c679bcb4ce4ad35e88f2d9c70bb/FLAG673a32e72 [2024-11-09 03:21:13,363 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8f4a4ea67/0cd91c679bcb4ce4ad35e88f2d9c70bb [2024-11-09 03:21:13,368 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 03:21:13,371 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 03:21:13,374 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 03:21:13,376 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 03:21:13,384 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 03:21:13,385 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 03:21:13" (1/1) ... [2024-11-09 03:21:13,388 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@66e8d8a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:21:13, skipping insertion in model container [2024-11-09 03:21:13,388 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 03:21:13" (1/1) ... [2024-11-09 03:21:13,525 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 03:21:13,856 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] [2024-11-09 03:21:13,869 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] [2024-11-09 03:21:14,821 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 03:21:14,825 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 03:21:14,829 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 03:21:14,830 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 03:21:14,831 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 03:21:14,844 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 03:21:14,845 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 03:21:14,846 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 03:21:14,847 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 03:21:15,442 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 03:21:15,442 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 03:21:15,516 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 03:21:15,600 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 03:21:15,613 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] [2024-11-09 03:21:15,614 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] [2024-11-09 03:21:15,661 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 03:21:15,662 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 03:21:15,662 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 03:21:15,663 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 03:21:15,663 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 03:21:15,669 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 03:21:15,721 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 03:21:15,722 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 03:21:15,722 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 03:21:15,940 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : "+r"(index)); [8253] [2024-11-09 03:21:15,942 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 03:21:15,942 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 03:21:15,956 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [8739-8750] [2024-11-09 03:21:15,994 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 03:21:16,212 INFO L204 MainTranslator]: Completed translation [2024-11-09 03:21:16,213 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:21:16 WrapperNode [2024-11-09 03:21:16,213 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 03:21:16,214 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 03:21:16,215 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 03:21:16,216 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 03:21:16,223 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:21:16" (1/1) ... [2024-11-09 03:21:16,330 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:21:16" (1/1) ... [2024-11-09 03:21:16,418 INFO L138 Inliner]: procedures = 682, calls = 2786, calls flagged for inlining = 57, calls inlined = 5, statements flattened = 823 [2024-11-09 03:21:16,418 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 03:21:16,419 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 03:21:16,419 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 03:21:16,419 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 03:21:16,431 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:21:16" (1/1) ... [2024-11-09 03:21:16,431 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:21:16" (1/1) ... [2024-11-09 03:21:16,448 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:21:16" (1/1) ... [2024-11-09 03:21:16,578 INFO L175 MemorySlicer]: Split 529 memory accesses to 6 slices as follows [2, 257, 238, 16, 5, 11]. 49 percent of accesses are in the largest equivalence class. The 29 initializations are split as follows [2, 0, 6, 16, 5, 0]. The 492 writes are split as follows [0, 257, 232, 0, 0, 3]. [2024-11-09 03:21:16,582 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:21:16" (1/1) ... [2024-11-09 03:21:16,583 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:21:16" (1/1) ... [2024-11-09 03:21:16,623 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:21:16" (1/1) ... [2024-11-09 03:21:16,630 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:21:16" (1/1) ... [2024-11-09 03:21:16,643 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:21:16" (1/1) ... [2024-11-09 03:21:16,652 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:21:16" (1/1) ... [2024-11-09 03:21:16,669 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 03:21:16,673 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 03:21:16,673 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 03:21:16,673 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 03:21:16,674 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:21:16" (1/1) ... [2024-11-09 03:21:16,679 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 03:21:16,690 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 03:21:16,708 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) [2024-11-09 03:21:16,711 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 [2024-11-09 03:21:16,759 INFO L130 BoogieDeclarations]: Found specification of procedure aws_string_is_valid [2024-11-09 03:21:16,763 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_string_is_valid [2024-11-09 03:21:16,763 INFO L130 BoogieDeclarations]: Found specification of procedure aws_string_compare [2024-11-09 03:21:16,763 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_string_compare [2024-11-09 03:21:16,763 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_string_is_allocated_bounded_length [2024-11-09 03:21:16,764 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_string_is_allocated_bounded_length [2024-11-09 03:21:16,764 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2024-11-09 03:21:16,764 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2024-11-09 03:21:16,764 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-11-09 03:21:16,764 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-11-09 03:21:16,764 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-11-09 03:21:16,764 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-11-09 03:21:16,764 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2024-11-09 03:21:16,764 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2024-11-09 03:21:16,764 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-09 03:21:16,765 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-09 03:21:16,765 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-09 03:21:16,765 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-09 03:21:16,765 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-09 03:21:16,765 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-09 03:21:16,765 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-09 03:21:16,765 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-09 03:21:16,766 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-09 03:21:16,766 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 03:21:16,766 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-09 03:21:16,766 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-09 03:21:16,766 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-09 03:21:16,766 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-09 03:21:16,766 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-09 03:21:16,766 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-11-09 03:21:16,766 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 03:21:16,766 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 03:21:16,766 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2024-11-09 03:21:16,767 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2024-11-09 03:21:16,767 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-11-09 03:21:16,767 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-11-09 03:21:16,767 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-11-09 03:21:16,767 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-11-09 03:21:16,767 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-11-09 03:21:16,767 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2024-11-09 03:21:16,767 INFO L130 BoogieDeclarations]: Found specification of procedure aws_string_bytes [2024-11-09 03:21:16,767 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_string_bytes [2024-11-09 03:21:16,767 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-09 03:21:16,767 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-09 03:21:16,767 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-09 03:21:16,768 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-09 03:21:16,768 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-09 03:21:16,768 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-09 03:21:16,768 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-11-09 03:21:16,768 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-11-09 03:21:16,768 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2024-11-09 03:21:16,768 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2024-11-09 03:21:16,768 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2024-11-09 03:21:16,768 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2024-11-09 03:21:16,768 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-09 03:21:16,768 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-09 03:21:16,769 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-09 03:21:16,769 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-09 03:21:16,769 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-09 03:21:16,769 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-09 03:21:16,769 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-09 03:21:16,769 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-09 03:21:16,773 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-09 03:21:16,773 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-09 03:21:16,773 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-09 03:21:16,773 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-09 03:21:17,086 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 03:21:17,089 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 03:21:25,063 INFO L? ?]: Removed 81 outVars from TransFormulas that were not future-live. [2024-11-09 03:21:25,064 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 03:21:25,083 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 03:21:25,084 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-09 03:21:25,084 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 03:21:25 BoogieIcfgContainer [2024-11-09 03:21:25,085 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 03:21:25,087 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 03:21:25,088 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 03:21:25,091 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 03:21:25,091 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 03:21:13" (1/3) ... [2024-11-09 03:21:25,092 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c1761c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 03:21:25, skipping insertion in model container [2024-11-09 03:21:25,092 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:21:16" (2/3) ... [2024-11-09 03:21:25,093 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c1761c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 03:21:25, skipping insertion in model container [2024-11-09 03:21:25,093 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 03:21:25" (3/3) ... [2024-11-09 03:21:25,094 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_string_compare_harness.i [2024-11-09 03:21:25,112 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 03:21:25,112 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 03:21:25,191 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 03:21:25,200 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;@35a0de85, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 03:21:25,201 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 03:21:25,205 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) [2024-11-09 03:21:25,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2024-11-09 03:21:25,217 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 03:21:25,218 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] [2024-11-09 03:21:25,219 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 03:21:25,223 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 03:21:25,224 INFO L85 PathProgramCache]: Analyzing trace with hash 127762490, now seen corresponding path program 1 times [2024-11-09 03:21:25,233 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 03:21:25,234 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2140502036] [2024-11-09 03:21:25,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 03:21:25,235 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 03:22:40,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 03:22:41,482 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-09 03:22:41,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 03:22:41,501 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-09 03:22:41,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 03:22:41,520 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-09 03:22:41,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 03:22:41,535 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-11-09 03:22:41,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 03:22:41,550 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-09 03:22:41,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 03:22:41,574 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-09 03:22:41,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 03:22:41,591 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-09 03:22:41,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 03:22:41,601 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-09 03:22:41,602 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 03:22:41,602 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2140502036] [2024-11-09 03:22:41,603 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2140502036] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 03:22:41,603 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 03:22:41,604 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 03:22:41,605 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [44905785] [2024-11-09 03:22:41,606 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 03:22:41,610 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-09 03:22:41,610 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 03:22:41,635 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-09 03:22:41,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-09 03:22:41,641 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) [2024-11-09 03:22:41,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 03:22:41,686 INFO L93 Difference]: Finished difference Result 237 states and 336 transitions. [2024-11-09 03:22:41,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-09 03:22:41,689 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 [2024-11-09 03:22:41,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 03:22:41,701 INFO L225 Difference]: With dead ends: 237 [2024-11-09 03:22:41,701 INFO L226 Difference]: Without dead ends: 116 [2024-11-09 03:22:41,706 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 [2024-11-09 03:22:41,712 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 [2024-11-09 03:22:41,715 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] [2024-11-09 03:22:41,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2024-11-09 03:22:41,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 116. [2024-11-09 03:22:41,768 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) [2024-11-09 03:22:41,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 155 transitions. [2024-11-09 03:22:41,774 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 155 transitions. Word has length 50 [2024-11-09 03:22:41,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 03:22:41,776 INFO L471 AbstractCegarLoop]: Abstraction has 116 states and 155 transitions. [2024-11-09 03:22:41,776 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) [2024-11-09 03:22:41,776 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 155 transitions. [2024-11-09 03:22:41,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2024-11-09 03:22:41,779 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 03:22:41,783 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] [2024-11-09 03:22:41,783 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 03:22:41,783 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 03:22:41,784 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 03:22:41,784 INFO L85 PathProgramCache]: Analyzing trace with hash -460652934, now seen corresponding path program 1 times [2024-11-09 03:22:41,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 03:22:41,784 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2054775591] [2024-11-09 03:22:41,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 03:22:41,785 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms