./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_array_eq_ignore_case_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3061b6dc 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_array_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 8de283a79f01a407383b7daa040c59e7c5c73f52f0f9c705f7021a208716cd24 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-19 01:58:19,474 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-19 01:58:19,548 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-19 01:58:19,554 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-19 01:58:19,557 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-19 01:58:19,588 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-19 01:58:19,589 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-19 01:58:19,589 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-19 01:58:19,590 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-19 01:58:19,591 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-19 01:58:19,592 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-19 01:58:19,592 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-19 01:58:19,592 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-19 01:58:19,593 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-19 01:58:19,593 INFO L153 SettingsManager]: * Use SBE=true [2024-11-19 01:58:19,596 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-19 01:58:19,596 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-19 01:58:19,596 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-19 01:58:19,597 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-19 01:58:19,597 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-19 01:58:19,597 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-19 01:58:19,597 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-19 01:58:19,598 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-19 01:58:19,598 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-19 01:58:19,598 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-19 01:58:19,598 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-19 01:58:19,599 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-19 01:58:19,599 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-19 01:58:19,599 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-19 01:58:19,599 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 01:58:19,599 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-19 01:58:19,600 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-19 01:58:19,600 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-19 01:58:19,600 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-19 01:58:19,600 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-19 01:58:19,600 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-19 01:58:19,601 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-19 01:58:19,601 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-19 01:58:19,601 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-19 01:58:19,604 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8de283a79f01a407383b7daa040c59e7c5c73f52f0f9c705f7021a208716cd24 [2024-11-19 01:58:19,842 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-19 01:58:19,869 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-19 01:58:19,871 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-19 01:58:19,873 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-19 01:58:19,873 INFO L274 PluginConnector]: CDTParser initialized [2024-11-19 01:58:19,874 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_array_eq_ignore_case_harness.i [2024-11-19 01:58:21,345 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-19 01:58:21,819 INFO L384 CDTParser]: Found 1 translation units. [2024-11-19 01:58:21,821 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_eq_ignore_case_harness.i [2024-11-19 01:58:21,858 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1cab22d31/0c4d6d7504324ebebdc0a9ebeb769b6f/FLAG2ca22d45c [2024-11-19 01:58:21,874 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1cab22d31/0c4d6d7504324ebebdc0a9ebeb769b6f [2024-11-19 01:58:21,877 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-19 01:58:21,880 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-19 01:58:21,883 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-19 01:58:21,883 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-19 01:58:21,888 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-19 01:58:21,889 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 01:58:21" (1/1) ... [2024-11-19 01:58:21,890 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11dbf620 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:58:21, skipping insertion in model container [2024-11-19 01:58:21,891 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 01:58:21" (1/1) ... [2024-11-19 01:58:21,995 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-19 01:58:22,347 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_array_eq_ignore_case_harness.i[4498,4511] [2024-11-19 01:58:22,356 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_array_eq_ignore_case_harness.i[4558,4571] [2024-11-19 01:58:23,106 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 01:58:23,107 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 01:58:23,108 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 01:58:23,109 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 01:58:23,109 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 01:58:23,124 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 01:58:23,125 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 01:58:23,127 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 01:58:23,128 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 01:58:23,630 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 01:58:23,631 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 01:58:23,733 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 01:58:23,810 INFO L200 MainTranslator]: Completed pre-run [2024-11-19 01:58:23,837 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_array_eq_ignore_case_harness.i[4498,4511] [2024-11-19 01:58:23,837 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_array_eq_ignore_case_harness.i[4558,4571] [2024-11-19 01:58:23,882 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 01:58:23,883 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 01:58:23,884 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 01:58:23,884 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 01:58:23,885 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 01:58:23,891 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 01:58:23,895 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 01:58:23,896 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 01:58:23,896 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 01:58:24,031 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : "+r"(index)); [8277] [2024-11-19 01:58:24,033 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 01:58:24,033 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 01:58:24,048 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [8763-8774] [2024-11-19 01:58:24,133 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 01:58:24,495 INFO L204 MainTranslator]: Completed translation [2024-11-19 01:58:24,496 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:58:24 WrapperNode [2024-11-19 01:58:24,496 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-19 01:58:24,497 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-19 01:58:24,498 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-19 01:58:24,498 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-19 01:58:24,506 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:58:24" (1/1) ... [2024-11-19 01:58:24,630 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:58:24" (1/1) ... [2024-11-19 01:58:24,719 INFO L138 Inliner]: procedures = 680, calls = 2609, calls flagged for inlining = 58, calls inlined = 4, statements flattened = 774 [2024-11-19 01:58:24,721 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-19 01:58:24,721 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-19 01:58:24,722 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-19 01:58:24,722 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-19 01:58:24,734 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:58:24" (1/1) ... [2024-11-19 01:58:24,734 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:58:24" (1/1) ... [2024-11-19 01:58:24,746 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:58:24" (1/1) ... [2024-11-19 01:58:24,827 INFO L175 MemorySlicer]: Split 514 memory accesses to 6 slices as follows [2, 259, 238, 4, 5, 6]. 50 percent of accesses are in the largest equivalence class. The 13 initializations are split as follows [2, 0, 6, 0, 5, 0]. The 491 writes are split as follows [0, 257, 232, 0, 0, 2]. [2024-11-19 01:58:24,828 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:58:24" (1/1) ... [2024-11-19 01:58:24,828 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:58:24" (1/1) ... [2024-11-19 01:58:24,862 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:58:24" (1/1) ... [2024-11-19 01:58:24,871 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:58:24" (1/1) ... [2024-11-19 01:58:24,886 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:58:24" (1/1) ... [2024-11-19 01:58:24,890 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:58:24" (1/1) ... [2024-11-19 01:58:24,898 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-19 01:58:24,899 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-19 01:58:24,899 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-19 01:58:24,899 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-19 01:58:24,900 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:58:24" (1/1) ... [2024-11-19 01:58:24,906 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 01:58:24,916 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 01:58:24,933 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) [2024-11-19 01:58:24,935 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 [2024-11-19 01:58:24,976 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_eq_ignore_case [2024-11-19 01:58:24,977 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_eq_ignore_case [2024-11-19 01:58:24,978 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-19 01:58:24,978 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2024-11-19 01:58:24,979 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2024-11-19 01:58:24,979 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-11-19 01:58:24,979 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-11-19 01:58:24,979 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-11-19 01:58:24,979 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-11-19 01:58:24,979 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2024-11-19 01:58:24,979 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2024-11-19 01:58:24,979 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-19 01:58:24,979 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-19 01:58:24,980 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-19 01:58:24,980 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-19 01:58:24,980 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-19 01:58:24,980 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-19 01:58:24,980 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-19 01:58:24,980 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-19 01:58:24,980 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-19 01:58:24,980 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-19 01:58:24,980 INFO L130 BoogieDeclarations]: Found specification of procedure save_byte_from_array [2024-11-19 01:58:24,980 INFO L138 BoogieDeclarations]: Found implementation of procedure save_byte_from_array [2024-11-19 01:58:24,981 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-19 01:58:24,981 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-19 01:58:24,981 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2024-11-19 01:58:24,981 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2024-11-19 01:58:24,981 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2024-11-19 01:58:24,981 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2024-11-19 01:58:24,981 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-11-19 01:58:24,981 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-11-19 01:58:24,981 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-11-19 01:58:24,981 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-11-19 01:58:24,982 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-11-19 01:58:24,982 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2024-11-19 01:58:24,982 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_malloc [2024-11-19 01:58:24,982 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_malloc [2024-11-19 01:58:24,984 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-19 01:58:24,984 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-19 01:58:24,985 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-19 01:58:24,985 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-19 01:58:24,986 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-19 01:58:24,986 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-19 01:58:24,986 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-19 01:58:24,986 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-11-19 01:58:24,986 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-11-19 01:58:24,986 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-19 01:58:24,987 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-19 01:58:24,987 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-19 01:58:24,988 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-19 01:58:24,988 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-19 01:58:24,988 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-19 01:58:24,988 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-19 01:58:24,989 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-19 01:58:24,989 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-19 01:58:24,989 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-19 01:58:24,989 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-19 01:58:24,990 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-19 01:58:25,312 INFO L238 CfgBuilder]: Building ICFG [2024-11-19 01:58:25,315 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-19 01:58:33,524 INFO L? ?]: Removed 44 outVars from TransFormulas that were not future-live. [2024-11-19 01:58:33,525 INFO L287 CfgBuilder]: Performing block encoding [2024-11-19 01:58:33,536 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-19 01:58:33,537 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-19 01:58:33,537 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 01:58:33 BoogieIcfgContainer [2024-11-19 01:58:33,537 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-19 01:58:33,539 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-19 01:58:33,539 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-19 01:58:33,542 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-19 01:58:33,542 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 01:58:21" (1/3) ... [2024-11-19 01:58:33,543 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4580c68b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 01:58:33, skipping insertion in model container [2024-11-19 01:58:33,543 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:58:24" (2/3) ... [2024-11-19 01:58:33,543 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4580c68b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 01:58:33, skipping insertion in model container [2024-11-19 01:58:33,544 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 01:58:33" (3/3) ... [2024-11-19 01:58:33,545 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_array_eq_ignore_case_harness.i [2024-11-19 01:58:33,561 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-19 01:58:33,561 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-19 01:58:33,629 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 01:58:33,637 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;@292d7130, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 01:58:33,638 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-19 01:58:33,642 INFO L276 IsEmpty]: Start isEmpty. Operand has 77 states, 47 states have (on average 1.297872340425532) internal successors, (61), 51 states have internal predecessors, (61), 20 states have call successors, (20), 8 states have call predecessors, (20), 8 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-19 01:58:33,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-19 01:58:33,651 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:58:33,651 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 2, 2, 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, 1, 1, 1, 1] [2024-11-19 01:58:33,652 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:58:33,658 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:58:33,658 INFO L85 PathProgramCache]: Analyzing trace with hash -1693087987, now seen corresponding path program 1 times [2024-11-19 01:58:33,667 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:58:33,667 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [692083884] [2024-11-19 01:58:33,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:58:33,668 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:59:47,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:59:50,855 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2024-11-19 01:59:50,855 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:59:50,855 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [692083884] [2024-11-19 01:59:50,856 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [692083884] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:59:50,857 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:59:50,857 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-19 01:59:50,859 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [438852230] [2024-11-19 01:59:50,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:59:50,865 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 01:59:50,865 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:59:50,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 01:59:50,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 01:59:50,891 INFO L87 Difference]: Start difference. First operand has 77 states, 47 states have (on average 1.297872340425532) internal successors, (61), 51 states have internal predecessors, (61), 20 states have call successors, (20), 8 states have call predecessors, (20), 8 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) Second operand has 4 states, 4 states have (on average 6.25) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-19 01:59:51,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:59:51,000 INFO L93 Difference]: Finished difference Result 154 states and 220 transitions. [2024-11-19 01:59:51,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 01:59:51,002 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) Word has length 65 [2024-11-19 01:59:51,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:59:51,009 INFO L225 Difference]: With dead ends: 154 [2024-11-19 01:59:51,009 INFO L226 Difference]: Without dead ends: 75 [2024-11-19 01:59:51,012 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 01:59:51,015 INFO L432 NwaCegarLoop]: 97 mSDtfsCounter, 0 mSDsluCounter, 188 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 285 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 01:59:51,018 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 285 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 01:59:51,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2024-11-19 01:59:51,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 75. [2024-11-19 01:59:51,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 45 states have (on average 1.2222222222222223) internal successors, (55), 48 states have internal predecessors, (55), 20 states have call successors, (20), 8 states have call predecessors, (20), 9 states have return successors, (20), 20 states have call predecessors, (20), 19 states have call successors, (20) [2024-11-19 01:59:51,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 95 transitions. [2024-11-19 01:59:51,063 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 95 transitions. Word has length 65 [2024-11-19 01:59:51,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:59:51,064 INFO L471 AbstractCegarLoop]: Abstraction has 75 states and 95 transitions. [2024-11-19 01:59:51,065 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-19 01:59:51,065 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 95 transitions. [2024-11-19 01:59:51,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-19 01:59:51,068 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:59:51,068 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 2, 2, 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, 1, 1, 1, 1, 1, 1] [2024-11-19 01:59:51,068 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-19 01:59:51,069 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:59:51,069 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:59:51,069 INFO L85 PathProgramCache]: Analyzing trace with hash -676595808, now seen corresponding path program 1 times [2024-11-19 01:59:51,070 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:59:51,070 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2083331866] [2024-11-19 01:59:51,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:59:51,070 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms