./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_string_eq_ignore_case_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5f08f0f0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/aws-c-common/aws_string_eq_ignore_case_harness.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 5c58e2434ae79fdf5f8dceab88ea2b6ad3f1a1a8bb44e2d930eaf759f64b3d29 --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-5f08f0f [2021-11-05 13:47:04,959 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-05 13:47:04,961 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-05 13:47:05,003 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-05 13:47:05,003 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-05 13:47:05,006 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-05 13:47:05,007 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-05 13:47:05,011 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-05 13:47:05,013 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-05 13:47:05,016 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-05 13:47:05,017 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-05 13:47:05,020 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-05 13:47:05,020 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-05 13:47:05,022 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-05 13:47:05,023 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-05 13:47:05,025 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-05 13:47:05,026 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-05 13:47:05,027 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-05 13:47:05,029 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-05 13:47:05,033 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-05 13:47:05,034 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-05 13:47:05,035 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-05 13:47:05,036 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-05 13:47:05,037 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-05 13:47:05,042 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-05 13:47:05,042 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-05 13:47:05,042 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-05 13:47:05,044 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-05 13:47:05,044 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-05 13:47:05,045 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-05 13:47:05,045 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-05 13:47:05,045 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-05 13:47:05,046 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-05 13:47:05,047 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-05 13:47:05,048 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-05 13:47:05,048 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-05 13:47:05,048 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-05 13:47:05,049 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-05 13:47:05,049 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-05 13:47:05,050 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-05 13:47:05,050 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-05 13:47:05,051 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-05 13:47:05,080 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-05 13:47:05,081 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-05 13:47:05,081 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-05 13:47:05,082 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-05 13:47:05,083 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-05 13:47:05,083 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-05 13:47:05,083 INFO L138 SettingsManager]: * Use SBE=true [2021-11-05 13:47:05,084 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-05 13:47:05,084 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-05 13:47:05,084 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-05 13:47:05,085 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-05 13:47:05,085 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-05 13:47:05,085 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-05 13:47:05,085 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-05 13:47:05,085 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-05 13:47:05,086 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-05 13:47:05,086 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-05 13:47:05,086 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-05 13:47:05,086 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-05 13:47:05,086 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-05 13:47:05,086 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-05 13:47:05,087 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-05 13:47:05,087 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-05 13:47:05,087 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-05 13:47:05,087 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-05 13:47:05,087 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-05 13:47:05,087 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-05 13:47:05,088 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-05 13:47:05,088 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-05 13:47:05,088 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5c58e2434ae79fdf5f8dceab88ea2b6ad3f1a1a8bb44e2d930eaf759f64b3d29 [2021-11-05 13:47:05,397 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-05 13:47:05,418 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-05 13:47:05,419 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-05 13:47:05,420 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-05 13:47:05,421 INFO L275 PluginConnector]: CDTParser initialized [2021-11-05 13:47:05,422 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_string_eq_ignore_case_harness.i [2021-11-05 13:47:05,484 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c497ccc2d/f6a22c0f323d449ab56cf47607cdf40f/FLAG20f101060 [2021-11-05 13:47:06,119 INFO L306 CDTParser]: Found 1 translation units. [2021-11-05 13:47:06,120 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_string_eq_ignore_case_harness.i [2021-11-05 13:47:06,150 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c497ccc2d/f6a22c0f323d449ab56cf47607cdf40f/FLAG20f101060 [2021-11-05 13:47:06,294 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c497ccc2d/f6a22c0f323d449ab56cf47607cdf40f [2021-11-05 13:47:06,296 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-05 13:47:06,298 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-05 13:47:06,300 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-05 13:47:06,301 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-05 13:47:06,306 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-05 13:47:06,307 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 01:47:06" (1/1) ... [2021-11-05 13:47:06,308 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@76b85d2b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 01:47:06, skipping insertion in model container [2021-11-05 13:47:06,308 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 01:47:06" (1/1) ... [2021-11-05 13:47:06,313 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-05 13:47:06,421 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-05 13:47:06,645 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_string_eq_ignore_case_harness.i[4499,4512] [2021-11-05 13:47:06,650 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_string_eq_ignore_case_harness.i[4559,4572] [2021-11-05 13:47:06,662 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-05 13:47:06,666 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-05 13:47:07,343 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:47:07,344 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:47:07,344 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:47:07,345 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:47:07,346 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:47:07,355 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:47:07,356 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:47:07,357 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:47:07,358 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:47:07,555 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-05 13:47:07,566 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-05 13:47:07,567 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-05 13:47:07,568 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-05 13:47:07,569 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-05 13:47:07,570 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-05 13:47:07,570 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-05 13:47:07,570 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-05 13:47:07,571 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-05 13:47:07,571 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-05 13:47:07,644 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-05 13:47:07,715 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:47:07,715 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:47:07,728 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-05 13:47:07,748 INFO L203 MainTranslator]: Completed pre-run [2021-11-05 13:47:07,763 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_string_eq_ignore_case_harness.i[4499,4512] [2021-11-05 13:47:07,764 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_string_eq_ignore_case_harness.i[4559,4572] [2021-11-05 13:47:07,766 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-05 13:47:07,766 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-05 13:47:07,805 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:47:07,806 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:47:07,806 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:47:07,806 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:47:07,807 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:47:07,810 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:47:07,810 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:47:07,811 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:47:07,811 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:47:07,827 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-05 13:47:07,830 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-05 13:47:07,830 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-05 13:47:07,831 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-05 13:47:07,835 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-05 13:47:07,836 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-05 13:47:07,836 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-05 13:47:07,836 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-05 13:47:07,839 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-05 13:47:07,839 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-05 13:47:07,860 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-05 13:47:07,936 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:47:07,936 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:47:07,956 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-05 13:47:08,163 INFO L208 MainTranslator]: Completed translation [2021-11-05 13:47:08,164 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 01:47:08 WrapperNode [2021-11-05 13:47:08,164 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-05 13:47:08,165 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-05 13:47:08,165 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-05 13:47:08,165 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-05 13:47:08,170 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 01:47:08" (1/1) ... [2021-11-05 13:47:08,246 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 01:47:08" (1/1) ... [2021-11-05 13:47:08,306 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-05 13:47:08,306 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-05 13:47:08,306 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-05 13:47:08,307 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-05 13:47:08,312 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 01:47:08" (1/1) ... [2021-11-05 13:47:08,312 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 01:47:08" (1/1) ... [2021-11-05 13:47:08,320 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 01:47:08" (1/1) ... [2021-11-05 13:47:08,321 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 01:47:08" (1/1) ... [2021-11-05 13:47:08,352 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 01:47:08" (1/1) ... [2021-11-05 13:47:08,362 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 01:47:08" (1/1) ... [2021-11-05 13:47:08,365 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 01:47:08" (1/1) ... [2021-11-05 13:47:08,374 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-05 13:47:08,378 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-05 13:47:08,378 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-05 13:47:08,378 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-05 13:47:08,379 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 01:47:08" (1/1) ... [2021-11-05 13:47:08,383 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-05 13:47:08,390 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-05 13:47:08,399 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-05 13:47:08,414 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-05 13:47:08,450 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-05 13:47:08,451 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-05 13:47:08,451 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-05 13:47:08,451 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-05 13:47:08,451 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-05 13:47:08,451 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-05 13:47:08,452 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-05 13:47:08,452 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-05 13:47:08,452 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-05 13:47:09,091 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-05 13:47:09,092 INFO L299 CfgBuilder]: Removed 71 assume(true) statements. [2021-11-05 13:47:09,093 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 01:47:09 BoogieIcfgContainer [2021-11-05 13:47:09,093 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-05 13:47:09,094 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-05 13:47:09,094 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-05 13:47:09,096 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-05 13:47:09,096 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.11 01:47:06" (1/3) ... [2021-11-05 13:47:09,097 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3604540c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 01:47:09, skipping insertion in model container [2021-11-05 13:47:09,097 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 01:47:08" (2/3) ... [2021-11-05 13:47:09,097 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3604540c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 01:47:09, skipping insertion in model container [2021-11-05 13:47:09,097 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 01:47:09" (3/3) ... [2021-11-05 13:47:09,098 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_string_eq_ignore_case_harness.i [2021-11-05 13:47:09,101 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-05 13:47:09,101 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-11-05 13:47:09,129 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-05 13:47:09,133 INFO L339 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, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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, mLoopAccelerationTechnique=FAST_UPR [2021-11-05 13:47:09,133 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-11-05 13:47:09,145 INFO L276 IsEmpty]: Start isEmpty. Operand has 92 states, 88 states have (on average 1.4090909090909092) internal successors, (124), 91 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:47:09,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-11-05 13:47:09,150 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 13:47:09,151 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-05 13:47:09,151 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-05 13:47:09,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 13:47:09,155 INFO L85 PathProgramCache]: Analyzing trace with hash 690694871, now seen corresponding path program 1 times [2021-11-05 13:47:09,160 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 13:47:09,161 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1655464123] [2021-11-05 13:47:09,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 13:47:09,162 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 13:47:09,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 13:47:09,477 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 13:47:09,478 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 13:47:09,478 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1655464123] [2021-11-05 13:47:09,479 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1655464123] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 13:47:09,479 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 13:47:09,479 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-05 13:47:09,480 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1319176944] [2021-11-05 13:47:09,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 13:47:09,483 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-05 13:47:09,483 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 13:47:09,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-05 13:47:09,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-05 13:47:09,505 INFO L87 Difference]: Start difference. First operand has 92 states, 88 states have (on average 1.4090909090909092) internal successors, (124), 91 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:47:09,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 13:47:09,521 INFO L93 Difference]: Finished difference Result 178 states and 240 transitions. [2021-11-05 13:47:09,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-05 13:47:09,522 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-11-05 13:47:09,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 13:47:09,528 INFO L225 Difference]: With dead ends: 178 [2021-11-05 13:47:09,528 INFO L226 Difference]: Without dead ends: 87 [2021-11-05 13:47:09,531 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.02ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-05 13:47:09,537 INFO L933 BasicCegarLoop]: 112 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.00ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 112 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.02ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.00ms IncrementalHoareTripleChecker+Time [2021-11-05 13:47:09,538 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 1.02ms Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.00ms Time] [2021-11-05 13:47:09,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2021-11-05 13:47:09,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 87. [2021-11-05 13:47:09,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 84 states have (on average 1.2619047619047619) internal successors, (106), 86 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:47:09,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 106 transitions. [2021-11-05 13:47:09,566 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 106 transitions. Word has length 29 [2021-11-05 13:47:09,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 13:47:09,566 INFO L470 AbstractCegarLoop]: Abstraction has 87 states and 106 transitions. [2021-11-05 13:47:09,566 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:47:09,567 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 106 transitions. [2021-11-05 13:47:09,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-11-05 13:47:09,568 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 13:47:09,569 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-05 13:47:09,569 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-05 13:47:09,569 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-05 13:47:09,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 13:47:09,570 INFO L85 PathProgramCache]: Analyzing trace with hash -72208045, now seen corresponding path program 1 times [2021-11-05 13:47:09,570 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 13:47:09,570 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2036579287] [2021-11-05 13:47:09,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 13:47:09,570 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 13:47:09,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 13:47:09,836 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 13:47:09,837 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 13:47:09,837 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2036579287] [2021-11-05 13:47:09,837 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2036579287] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 13:47:09,838 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 13:47:09,838 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-05 13:47:09,838 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1452350756] [2021-11-05 13:47:09,838 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 13:47:09,839 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-05 13:47:09,839 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 13:47:09,840 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-05 13:47:09,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-05 13:47:09,841 INFO L87 Difference]: Start difference. First operand 87 states and 106 transitions. Second operand has 7 states, 7 states have (on average 4.142857142857143) internal successors, (29), 7 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:47:09,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 13:47:09,942 INFO L93 Difference]: Finished difference Result 223 states and 281 transitions. [2021-11-05 13:47:09,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-05 13:47:09,942 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.142857142857143) internal successors, (29), 7 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-11-05 13:47:09,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 13:47:09,943 INFO L225 Difference]: With dead ends: 223 [2021-11-05 13:47:09,943 INFO L226 Difference]: Without dead ends: 87 [2021-11-05 13:47:09,944 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 71.91ms TimeCoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2021-11-05 13:47:09,945 INFO L933 BasicCegarLoop]: 102 mSDtfsCounter, 164 mSDsluCounter, 538 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.23ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 640 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 6.19ms SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 33.33ms IncrementalHoareTripleChecker+Time [2021-11-05 13:47:09,945 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [164 Valid, 640 Invalid, 41 Unknown, 0 Unchecked, 6.19ms Time], IncrementalHoareTripleChecker [4 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 33.33ms Time] [2021-11-05 13:47:09,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2021-11-05 13:47:09,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 87. [2021-11-05 13:47:09,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 84 states have (on average 1.2380952380952381) internal successors, (104), 86 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:47:09,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 104 transitions. [2021-11-05 13:47:09,950 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 104 transitions. Word has length 29 [2021-11-05 13:47:09,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 13:47:09,959 INFO L470 AbstractCegarLoop]: Abstraction has 87 states and 104 transitions. [2021-11-05 13:47:09,959 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.142857142857143) internal successors, (29), 7 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:47:09,959 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 104 transitions. [2021-11-05 13:47:09,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-11-05 13:47:09,960 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 13:47:09,960 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-05 13:47:09,960 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-05 13:47:09,961 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-05 13:47:09,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 13:47:09,961 INFO L85 PathProgramCache]: Analyzing trace with hash 1845709935, now seen corresponding path program 1 times [2021-11-05 13:47:09,961 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 13:47:09,962 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1421383829] [2021-11-05 13:47:09,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 13:47:09,962 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 13:47:09,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 13:47:10,112 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 13:47:10,113 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 13:47:10,113 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1421383829] [2021-11-05 13:47:10,113 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1421383829] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 13:47:10,113 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 13:47:10,113 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-11-05 13:47:10,113 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [292792669] [2021-11-05 13:47:10,114 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 13:47:10,114 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-05 13:47:10,114 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 13:47:10,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-05 13:47:10,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2021-11-05 13:47:10,117 INFO L87 Difference]: Start difference. First operand 87 states and 104 transitions. Second operand has 12 states, 12 states have (on average 3.3333333333333335) internal successors, (40), 12 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:47:10,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 13:47:10,426 INFO L93 Difference]: Finished difference Result 125 states and 150 transitions. [2021-11-05 13:47:10,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-11-05 13:47:10,426 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.3333333333333335) internal successors, (40), 12 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 40 [2021-11-05 13:47:10,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 13:47:10,427 INFO L225 Difference]: With dead ends: 125 [2021-11-05 13:47:10,427 INFO L226 Difference]: Without dead ends: 88 [2021-11-05 13:47:10,428 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 206.45ms TimeCoverageRelationStatistics Valid=163, Invalid=437, Unknown=0, NotChecked=0, Total=600 [2021-11-05 13:47:10,428 INFO L933 BasicCegarLoop]: 83 mSDtfsCounter, 474 mSDsluCounter, 415 mSDsCounter, 0 mSdLazyCounter, 129 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 104.55ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 474 SdHoareTripleChecker+Valid, 498 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 5.83ms SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 122.59ms IncrementalHoareTripleChecker+Time [2021-11-05 13:47:10,428 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [474 Valid, 498 Invalid, 148 Unknown, 0 Unchecked, 5.83ms Time], IncrementalHoareTripleChecker [19 Valid, 129 Invalid, 0 Unknown, 0 Unchecked, 122.59ms Time] [2021-11-05 13:47:10,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2021-11-05 13:47:10,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 87. [2021-11-05 13:47:10,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 84 states have (on average 1.2261904761904763) internal successors, (103), 86 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:47:10,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 103 transitions. [2021-11-05 13:47:10,443 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 103 transitions. Word has length 40 [2021-11-05 13:47:10,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 13:47:10,443 INFO L470 AbstractCegarLoop]: Abstraction has 87 states and 103 transitions. [2021-11-05 13:47:10,443 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.3333333333333335) internal successors, (40), 12 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:47:10,444 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 103 transitions. [2021-11-05 13:47:10,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-11-05 13:47:10,445 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 13:47:10,445 INFO L514 BasicCegarLoop]: trace histogram [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, 1, 1, 1] [2021-11-05 13:47:10,445 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-05 13:47:10,446 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-05 13:47:10,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 13:47:10,447 INFO L85 PathProgramCache]: Analyzing trace with hash 1247248327, now seen corresponding path program 1 times [2021-11-05 13:47:10,447 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 13:47:10,447 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [487150977] [2021-11-05 13:47:10,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 13:47:10,447 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 13:47:10,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 13:47:10,561 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 13:47:10,562 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 13:47:10,562 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [487150977] [2021-11-05 13:47:10,562 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [487150977] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 13:47:10,562 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 13:47:10,562 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-05 13:47:10,563 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [921553019] [2021-11-05 13:47:10,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 13:47:10,563 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-05 13:47:10,563 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 13:47:10,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-05 13:47:10,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-11-05 13:47:10,564 INFO L87 Difference]: Start difference. First operand 87 states and 103 transitions. Second operand has 9 states, 9 states have (on average 5.0) internal successors, (45), 9 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:47:10,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 13:47:10,708 INFO L93 Difference]: Finished difference Result 133 states and 159 transitions. [2021-11-05 13:47:10,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-05 13:47:10,709 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.0) internal successors, (45), 9 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 45 [2021-11-05 13:47:10,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 13:47:10,709 INFO L225 Difference]: With dead ends: 133 [2021-11-05 13:47:10,709 INFO L226 Difference]: Without dead ends: 87 [2021-11-05 13:47:10,710 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 93.72ms TimeCoverageRelationStatistics Valid=92, Invalid=214, Unknown=0, NotChecked=0, Total=306 [2021-11-05 13:47:10,711 INFO L933 BasicCegarLoop]: 88 mSDtfsCounter, 409 mSDsluCounter, 235 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 54.96ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 409 SdHoareTripleChecker+Valid, 323 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.36ms SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 65.77ms IncrementalHoareTripleChecker+Time [2021-11-05 13:47:10,711 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [409 Valid, 323 Invalid, 70 Unknown, 0 Unchecked, 1.36ms Time], IncrementalHoareTripleChecker [8 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 65.77ms Time] [2021-11-05 13:47:10,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2021-11-05 13:47:10,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 87. [2021-11-05 13:47:10,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 84 states have (on average 1.2142857142857142) internal successors, (102), 86 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:47:10,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 102 transitions. [2021-11-05 13:47:10,721 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 102 transitions. Word has length 45 [2021-11-05 13:47:10,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 13:47:10,723 INFO L470 AbstractCegarLoop]: Abstraction has 87 states and 102 transitions. [2021-11-05 13:47:10,723 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.0) internal successors, (45), 9 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:47:10,724 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 102 transitions. [2021-11-05 13:47:10,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-11-05 13:47:10,726 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 13:47:10,726 INFO L514 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 13:47:10,727 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-05 13:47:10,727 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-05 13:47:10,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 13:47:10,727 INFO L85 PathProgramCache]: Analyzing trace with hash 725061795, now seen corresponding path program 1 times [2021-11-05 13:47:10,728 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 13:47:10,729 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1712589010] [2021-11-05 13:47:10,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 13:47:10,729 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 13:47:10,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 13:47:10,854 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 13:47:10,854 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 13:47:10,854 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1712589010] [2021-11-05 13:47:10,854 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1712589010] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 13:47:10,855 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 13:47:10,855 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-11-05 13:47:10,855 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1689272381] [2021-11-05 13:47:10,855 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 13:47:10,855 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-05 13:47:10,856 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 13:47:10,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-05 13:47:10,856 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2021-11-05 13:47:10,856 INFO L87 Difference]: Start difference. First operand 87 states and 102 transitions. Second operand has 12 states, 12 states have (on average 4.166666666666667) internal successors, (50), 12 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:47:11,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 13:47:11,114 INFO L93 Difference]: Finished difference Result 137 states and 163 transitions. [2021-11-05 13:47:11,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-11-05 13:47:11,115 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.166666666666667) internal successors, (50), 12 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 50 [2021-11-05 13:47:11,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 13:47:11,116 INFO L225 Difference]: With dead ends: 137 [2021-11-05 13:47:11,116 INFO L226 Difference]: Without dead ends: 87 [2021-11-05 13:47:11,116 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 165.26ms TimeCoverageRelationStatistics Valid=155, Invalid=397, Unknown=0, NotChecked=0, Total=552 [2021-11-05 13:47:11,117 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 432 mSDsluCounter, 351 mSDsCounter, 0 mSdLazyCounter, 161 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 93.69ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 432 SdHoareTripleChecker+Valid, 425 SdHoareTripleChecker+Invalid, 207 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.06ms SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 161 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 114.45ms IncrementalHoareTripleChecker+Time [2021-11-05 13:47:11,117 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [432 Valid, 425 Invalid, 207 Unknown, 0 Unchecked, 2.06ms Time], IncrementalHoareTripleChecker [46 Valid, 161 Invalid, 0 Unknown, 0 Unchecked, 114.45ms Time] [2021-11-05 13:47:11,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2021-11-05 13:47:11,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 87. [2021-11-05 13:47:11,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 84 states have (on average 1.1666666666666667) internal successors, (98), 86 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:47:11,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 98 transitions. [2021-11-05 13:47:11,122 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 98 transitions. Word has length 50 [2021-11-05 13:47:11,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 13:47:11,122 INFO L470 AbstractCegarLoop]: Abstraction has 87 states and 98 transitions. [2021-11-05 13:47:11,122 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.166666666666667) internal successors, (50), 12 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:47:11,123 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 98 transitions. [2021-11-05 13:47:11,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-11-05 13:47:11,123 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 13:47:11,123 INFO L514 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 13:47:11,124 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-05 13:47:11,124 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-05 13:47:11,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 13:47:11,124 INFO L85 PathProgramCache]: Analyzing trace with hash 584513185, now seen corresponding path program 1 times [2021-11-05 13:47:11,125 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 13:47:11,125 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [898950398] [2021-11-05 13:47:11,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 13:47:11,125 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 13:47:11,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 13:47:11,406 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 13:47:11,406 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 13:47:11,406 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [898950398] [2021-11-05 13:47:11,407 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [898950398] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 13:47:11,407 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 13:47:11,407 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-05 13:47:11,407 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1264142913] [2021-11-05 13:47:11,407 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 13:47:11,408 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-05 13:47:11,408 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 13:47:11,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-05 13:47:11,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-05 13:47:11,408 INFO L87 Difference]: Start difference. First operand 87 states and 98 transitions. Second operand has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:47:11,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 13:47:11,446 INFO L93 Difference]: Finished difference Result 87 states and 98 transitions. [2021-11-05 13:47:11,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-05 13:47:11,446 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 50 [2021-11-05 13:47:11,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 13:47:11,446 INFO L225 Difference]: With dead ends: 87 [2021-11-05 13:47:11,447 INFO L226 Difference]: Without dead ends: 0 [2021-11-05 13:47:11,448 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 50.93ms TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-11-05 13:47:11,451 INFO L933 BasicCegarLoop]: 4 mSDtfsCounter, 5 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.33ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.08ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.76ms IncrementalHoareTripleChecker+Time [2021-11-05 13:47:11,452 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5 Valid, 13 Invalid, 8 Unknown, 0 Unchecked, 0.08ms Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 5.76ms Time] [2021-11-05 13:47:11,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-05 13:47:11,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-05 13:47:11,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:47:11,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-05 13:47:11,453 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 50 [2021-11-05 13:47:11,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 13:47:11,453 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-05 13:47:11,453 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:47:11,454 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-05 13:47:11,454 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-05 13:47:11,456 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2021-11-05 13:47:11,456 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (1 of 3 remaining) [2021-11-05 13:47:11,456 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (0 of 3 remaining) [2021-11-05 13:47:11,456 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-05 13:47:11,459 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-11-05 13:47:11,477 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 223) no Hoare annotation was computed. [2021-11-05 13:47:11,477 INFO L854 garLoopResultBuilder]: At program point L8013(lines 7986 8016) the Hoare annotation is: (let ((.cse0 (= ULTIMATE.start_aws_string_eq_ignore_case_harness_~str_a~1.base 0)) (.cse1 (= ULTIMATE.start_aws_string_eq_ignore_case_harness_~str_a~1.offset 0)) (.cse2 (= ULTIMATE.start_aws_string_eq_ignore_case_harness_~str_b~1.offset 0)) (.cse3 (= ULTIMATE.start_aws_string_eq_ignore_case_harness_~str_b~1.base 0))) (or (and .cse0 .cse1 .cse2 .cse3) (and .cse0 .cse1) (and .cse2 .cse3))) [2021-11-05 13:47:11,478 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-11-05 13:47:11,478 INFO L854 garLoopResultBuilder]: At program point L6891-1(lines 6890 6892) the Hoare annotation is: (and (= ULTIMATE.start_aws_string_eq_ignore_case_harness_~str_a~1.base 0) (= ULTIMATE.start_aws_string_eq_ignore_case_harness_~str_a~1.offset 0)) [2021-11-05 13:47:11,478 INFO L854 garLoopResultBuilder]: At program point L6891(lines 6890 6892) the Hoare annotation is: false [2021-11-05 13:47:11,479 INFO L861 garLoopResultBuilder]: At program point L8925(line 8925) the Hoare annotation is: true [2021-11-05 13:47:11,479 INFO L854 garLoopResultBuilder]: At program point L7455(lines 7437 7456) the Hoare annotation is: (let ((.cse0 (= ULTIMATE.start_aws_string_eq_ignore_case_harness_~str_a~1.base 0)) (.cse1 (= ULTIMATE.start_aws_string_eq_ignore_case_harness_~str_a~1.offset 0)) (.cse2 (= ULTIMATE.start_aws_string_eq_ignore_case_harness_~str_b~1.offset 0)) (.cse3 (= ULTIMATE.start_aws_string_eq_ignore_case_harness_~str_b~1.base 0))) (or (and .cse0 .cse1 .cse2 .cse3) (and .cse0 .cse1) (and .cse2 .cse3))) [2021-11-05 13:47:11,479 INFO L858 garLoopResultBuilder]: For program point L6811(lines 6811 6812) no Hoare annotation was computed. [2021-11-05 13:47:11,479 INFO L858 garLoopResultBuilder]: For program point L6811-5(lines 6811 6812) no Hoare annotation was computed. [2021-11-05 13:47:11,479 INFO L858 garLoopResultBuilder]: For program point L6811-3(lines 6811 6812) no Hoare annotation was computed. [2021-11-05 13:47:11,479 INFO L858 garLoopResultBuilder]: For program point L6811-2(lines 6811 6812) no Hoare annotation was computed. [2021-11-05 13:47:11,479 INFO L858 garLoopResultBuilder]: For program point L7439(line 7439) no Hoare annotation was computed. [2021-11-05 13:47:11,480 INFO L858 garLoopResultBuilder]: For program point L7439-2(line 7439) no Hoare annotation was computed. [2021-11-05 13:47:11,480 INFO L858 garLoopResultBuilder]: For program point L222(lines 222 224) no Hoare annotation was computed. [2021-11-05 13:47:11,480 INFO L858 garLoopResultBuilder]: For program point L222-1(lines 222 224) no Hoare annotation was computed. [2021-11-05 13:47:11,480 INFO L858 garLoopResultBuilder]: For program point L222-2(lines 222 224) no Hoare annotation was computed. [2021-11-05 13:47:11,480 INFO L858 garLoopResultBuilder]: For program point L7440-2(line 7440) no Hoare annotation was computed. [2021-11-05 13:47:11,480 INFO L858 garLoopResultBuilder]: For program point L7440(line 7440) no Hoare annotation was computed. [2021-11-05 13:47:11,480 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-11-05 13:47:11,481 INFO L858 garLoopResultBuilder]: For program point L223(line 223) no Hoare annotation was computed. [2021-11-05 13:47:11,481 INFO L858 garLoopResultBuilder]: For program point L223-1(line 223) no Hoare annotation was computed. [2021-11-05 13:47:11,481 INFO L858 garLoopResultBuilder]: For program point L223-3(line 223) no Hoare annotation was computed. [2021-11-05 13:47:11,481 INFO L858 garLoopResultBuilder]: For program point L223-4(line 223) no Hoare annotation was computed. [2021-11-05 13:47:11,481 INFO L858 garLoopResultBuilder]: For program point L223-6(line 223) no Hoare annotation was computed. [2021-11-05 13:47:11,481 INFO L858 garLoopResultBuilder]: For program point L223-7(line 223) no Hoare annotation was computed. [2021-11-05 13:47:11,481 INFO L858 garLoopResultBuilder]: For program point L7441(lines 7441 7445) no Hoare annotation was computed. [2021-11-05 13:47:11,481 INFO L858 garLoopResultBuilder]: For program point L8911(lines 8911 8924) no Hoare annotation was computed. [2021-11-05 13:47:11,482 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 223) no Hoare annotation was computed. [2021-11-05 13:47:11,482 INFO L858 garLoopResultBuilder]: For program point L8912(lines 8912 8913) no Hoare annotation was computed. [2021-11-05 13:47:11,482 INFO L858 garLoopResultBuilder]: For program point L8912-2(lines 8912 8913) no Hoare annotation was computed. [2021-11-05 13:47:11,482 INFO L854 garLoopResultBuilder]: At program point L8005-3(lines 8005 8011) the Hoare annotation is: (let ((.cse0 (= ULTIMATE.start_aws_string_eq_ignore_case_harness_~str_a~1.base 0)) (.cse1 (= ULTIMATE.start_aws_string_eq_ignore_case_harness_~str_a~1.offset 0)) (.cse2 (= ULTIMATE.start_aws_string_eq_ignore_case_harness_~str_b~1.offset 0)) (.cse3 (= ULTIMATE.start_aws_string_eq_ignore_case_harness_~str_b~1.base 0))) (or (and .cse0 .cse1 .cse2 .cse3) (and .cse0 .cse1) (and .cse2 .cse3))) [2021-11-05 13:47:11,483 INFO L858 garLoopResultBuilder]: For program point L8005-2(lines 8005 8011) no Hoare annotation was computed. [2021-11-05 13:47:11,483 INFO L854 garLoopResultBuilder]: At program point L6816-1(lines 6807 6817) the Hoare annotation is: (and (= ULTIMATE.start_aws_string_eq_ignore_case_harness_~str_a~1.base 0) (= ULTIMATE.start_aws_string_eq_ignore_case_harness_~str_a~1.offset 0)) [2021-11-05 13:47:11,483 INFO L854 garLoopResultBuilder]: At program point L6816(lines 6807 6817) the Hoare annotation is: false [2021-11-05 13:47:11,483 INFO L858 garLoopResultBuilder]: For program point L8005-4(lines 8005 8011) no Hoare annotation was computed. [2021-11-05 13:47:11,483 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-11-05 13:47:11,484 INFO L858 garLoopResultBuilder]: For program point L210(lines 210 212) no Hoare annotation was computed. [2021-11-05 13:47:11,484 INFO L858 garLoopResultBuilder]: For program point L210-1(lines 210 212) no Hoare annotation was computed. [2021-11-05 13:47:11,484 INFO L858 garLoopResultBuilder]: For program point L210-2(lines 210 212) no Hoare annotation was computed. [2021-11-05 13:47:11,486 INFO L858 garLoopResultBuilder]: For program point L210-3(lines 210 212) no Hoare annotation was computed. [2021-11-05 13:47:11,489 INFO L858 garLoopResultBuilder]: For program point L210-4(lines 210 212) no Hoare annotation was computed. [2021-11-05 13:47:11,489 INFO L858 garLoopResultBuilder]: For program point L210-5(lines 210 212) no Hoare annotation was computed. [2021-11-05 13:47:11,489 INFO L858 garLoopResultBuilder]: For program point L210-6(lines 210 212) no Hoare annotation was computed. [2021-11-05 13:47:11,489 INFO L858 garLoopResultBuilder]: For program point L210-7(lines 7997 8001) no Hoare annotation was computed. [2021-11-05 13:47:11,490 INFO L858 garLoopResultBuilder]: For program point L8006(lines 8006 8010) no Hoare annotation was computed. [2021-11-05 13:47:11,490 INFO L858 garLoopResultBuilder]: For program point L211(line 211) no Hoare annotation was computed. [2021-11-05 13:47:11,490 INFO L858 garLoopResultBuilder]: For program point L211-2(line 211) no Hoare annotation was computed. [2021-11-05 13:47:11,490 INFO L858 garLoopResultBuilder]: For program point L211-4(line 211) no Hoare annotation was computed. [2021-11-05 13:47:11,490 INFO L858 garLoopResultBuilder]: For program point L211-6(line 211) no Hoare annotation was computed. [2021-11-05 13:47:11,490 INFO L858 garLoopResultBuilder]: For program point L211-8(line 211) no Hoare annotation was computed. [2021-11-05 13:47:11,490 INFO L858 garLoopResultBuilder]: For program point L211-10(line 211) no Hoare annotation was computed. [2021-11-05 13:47:11,490 INFO L858 garLoopResultBuilder]: For program point L211-12(line 211) no Hoare annotation was computed. [2021-11-05 13:47:11,490 INFO L861 garLoopResultBuilder]: At program point L261(line 261) the Hoare annotation is: true [2021-11-05 13:47:11,491 INFO L858 garLoopResultBuilder]: For program point L211-14(line 211) no Hoare annotation was computed. [2021-11-05 13:47:11,491 INFO L854 garLoopResultBuilder]: At program point L261-1(line 261) the Hoare annotation is: false [2021-11-05 13:47:11,491 INFO L854 garLoopResultBuilder]: At program point L261-2(line 261) the Hoare annotation is: (and (= ULTIMATE.start_aws_string_eq_ignore_case_harness_~str_a~1.base 0) (= ULTIMATE.start_aws_string_eq_ignore_case_harness_~str_a~1.offset 0)) [2021-11-05 13:47:11,491 INFO L854 garLoopResultBuilder]: At program point L261-3(line 261) the Hoare annotation is: (and (= ULTIMATE.start_aws_string_eq_ignore_case_harness_~str_a~1.base 0) (= ULTIMATE.start_aws_string_eq_ignore_case_harness_~str_a~1.offset 0)) [2021-11-05 13:47:11,491 INFO L854 garLoopResultBuilder]: At program point L261-4(line 261) the Hoare annotation is: (and (= ULTIMATE.start_aws_string_eq_ignore_case_harness_~str_a~1.base 0) (= ULTIMATE.start_aws_string_eq_ignore_case_harness_~str_a~1.offset 0)) [2021-11-05 13:47:11,491 INFO L858 garLoopResultBuilder]: For program point L7446(lines 7446 7454) no Hoare annotation was computed. [2021-11-05 13:47:11,491 INFO L858 garLoopResultBuilder]: For program point L8916(lines 8916 8918) no Hoare annotation was computed. [2021-11-05 13:47:11,492 INFO L858 garLoopResultBuilder]: For program point L8916-1(lines 8916 8917) no Hoare annotation was computed. [2021-11-05 13:47:11,492 INFO L858 garLoopResultBuilder]: For program point L6257-2(line 6257) no Hoare annotation was computed. [2021-11-05 13:47:11,492 INFO L858 garLoopResultBuilder]: For program point L6257-3(line 6257) no Hoare annotation was computed. [2021-11-05 13:47:11,492 INFO L858 garLoopResultBuilder]: For program point L6257(line 6257) no Hoare annotation was computed. [2021-11-05 13:47:11,492 INFO L858 garLoopResultBuilder]: For program point L8916-3(lines 8916 8917) no Hoare annotation was computed. [2021-11-05 13:47:11,493 INFO L854 garLoopResultBuilder]: At program point L6257-6(lines 6253 6258) the Hoare annotation is: (let ((.cse0 (= ULTIMATE.start_aws_string_eq_ignore_case_harness_~str_a~1.base 0)) (.cse1 (= ULTIMATE.start_aws_string_eq_ignore_case_harness_~str_a~1.offset 0)) (.cse2 (= ULTIMATE.start_aws_string_eq_ignore_case_harness_~str_b~1.offset 0)) (.cse3 (= ULTIMATE.start_aws_string_eq_ignore_case_harness_~str_b~1.base 0))) (or (and .cse0 .cse1 .cse2 .cse3) (and .cse0 .cse1) (and .cse2 .cse3))) [2021-11-05 13:47:11,493 INFO L858 garLoopResultBuilder]: For program point L6257-7(line 6257) no Hoare annotation was computed. [2021-11-05 13:47:11,493 INFO L858 garLoopResultBuilder]: For program point L8916-5(lines 8916 8918) no Hoare annotation was computed. [2021-11-05 13:47:11,493 INFO L858 garLoopResultBuilder]: For program point L6257-5(line 6257) no Hoare annotation was computed. [2021-11-05 13:47:11,493 INFO L858 garLoopResultBuilder]: For program point L6257-10(line 6257) no Hoare annotation was computed. [2021-11-05 13:47:11,493 INFO L858 garLoopResultBuilder]: For program point L6257-9(line 6257) no Hoare annotation was computed. [2021-11-05 13:47:11,494 INFO L858 garLoopResultBuilder]: For program point L6257-14(line 6257) no Hoare annotation was computed. [2021-11-05 13:47:11,494 INFO L858 garLoopResultBuilder]: For program point L6257-12(line 6257) no Hoare annotation was computed. [2021-11-05 13:47:11,494 INFO L854 garLoopResultBuilder]: At program point L6257-13(lines 6253 6258) the Hoare annotation is: (let ((.cse0 (= ULTIMATE.start_aws_string_eq_ignore_case_harness_~str_a~1.base 0)) (.cse1 (= ULTIMATE.start_aws_string_eq_ignore_case_harness_~str_a~1.offset 0)) (.cse2 (= ULTIMATE.start_aws_string_eq_ignore_case_harness_~str_b~1.offset 0)) (.cse3 (= ULTIMATE.start_aws_string_eq_ignore_case_harness_~str_b~1.base 0))) (or (and .cse0 .cse1 .cse2 .cse3) (and .cse0 .cse1) (and .cse2 .cse3))) [2021-11-05 13:47:11,494 INFO L858 garLoopResultBuilder]: For program point L6257-19(line 6257) no Hoare annotation was computed. [2021-11-05 13:47:11,494 INFO L858 garLoopResultBuilder]: For program point L6257-16(line 6257) no Hoare annotation was computed. [2021-11-05 13:47:11,494 INFO L858 garLoopResultBuilder]: For program point L6257-17(line 6257) no Hoare annotation was computed. [2021-11-05 13:47:11,495 INFO L858 garLoopResultBuilder]: For program point L6257-23(line 6257) no Hoare annotation was computed. [2021-11-05 13:47:11,495 INFO L854 garLoopResultBuilder]: At program point L6257-20(lines 6253 6258) the Hoare annotation is: false [2021-11-05 13:47:11,495 INFO L858 garLoopResultBuilder]: For program point L6257-21(line 6257) no Hoare annotation was computed. [2021-11-05 13:47:11,495 INFO L858 garLoopResultBuilder]: For program point L6257-26(line 6257) no Hoare annotation was computed. [2021-11-05 13:47:11,495 INFO L854 garLoopResultBuilder]: At program point L6257-27(lines 6253 6258) the Hoare annotation is: false [2021-11-05 13:47:11,495 INFO L858 garLoopResultBuilder]: For program point L6257-24(line 6257) no Hoare annotation was computed. [2021-11-05 13:47:11,495 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-11-05 13:47:11,495 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 223) no Hoare annotation was computed. [2021-11-05 13:47:11,496 INFO L854 garLoopResultBuilder]: At program point L6804-1(lines 6801 6805) the Hoare annotation is: (and (= ULTIMATE.start_aws_string_eq_ignore_case_harness_~str_a~1.base 0) (= ULTIMATE.start_aws_string_eq_ignore_case_harness_~str_a~1.offset 0)) [2021-11-05 13:47:11,496 INFO L854 garLoopResultBuilder]: At program point L6804(lines 6801 6805) the Hoare annotation is: false [2021-11-05 13:47:11,496 INFO L854 garLoopResultBuilder]: At program point L6887-1(lines 6883 6888) the Hoare annotation is: (and (= ULTIMATE.start_aws_string_eq_ignore_case_harness_~str_a~1.base 0) (= ULTIMATE.start_aws_string_eq_ignore_case_harness_~str_a~1.offset 0)) [2021-11-05 13:47:11,496 INFO L854 garLoopResultBuilder]: At program point L6887(lines 6883 6888) the Hoare annotation is: false [2021-11-05 13:47:11,496 INFO L858 garLoopResultBuilder]: For program point L8919(lines 8919 8923) no Hoare annotation was computed. [2021-11-05 13:47:11,498 INFO L854 garLoopResultBuilder]: At program point L266(line 266) the Hoare annotation is: (= 16 ULTIMATE.start_ensure_string_is_allocated_bounded_length_~max_size) [2021-11-05 13:47:11,498 INFO L854 garLoopResultBuilder]: At program point L266-1(line 266) the Hoare annotation is: (and (= ULTIMATE.start_aws_string_eq_ignore_case_harness_~str_a~1.base 0) (= ULTIMATE.start_aws_string_eq_ignore_case_harness_~str_a~1.offset 0)) [2021-11-05 13:47:11,505 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2021-11-05 13:47:11,506 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-05 13:47:11,539 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.11 01:47:11 BoogieIcfgContainer [2021-11-05 13:47:11,539 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-05 13:47:11,540 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-05 13:47:11,540 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-05 13:47:11,540 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-05 13:47:11,540 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 01:47:09" (3/4) ... [2021-11-05 13:47:11,542 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-05 13:47:11,557 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 31 nodes and edges [2021-11-05 13:47:11,558 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2021-11-05 13:47:11,558 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-11-05 13:47:11,559 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-05 13:47:11,699 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-11-05 13:47:11,699 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-05 13:47:11,700 INFO L158 Benchmark]: Toolchain (without parser) took 5402.42ms. Allocated memory was 60.8MB in the beginning and 159.4MB in the end (delta: 98.6MB). Free memory was 31.1MB in the beginning and 66.9MB in the end (delta: -35.8MB). Peak memory consumption was 96.2MB. Max. memory is 16.1GB. [2021-11-05 13:47:11,700 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 60.8MB. Free memory was 43.0MB in the beginning and 42.9MB in the end (delta: 42.6kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-05 13:47:11,700 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1863.87ms. Allocated memory was 60.8MB in the beginning and 104.9MB in the end (delta: 44.0MB). Free memory was 31.0MB in the beginning and 61.0MB in the end (delta: -30.0MB). Peak memory consumption was 40.1MB. Max. memory is 16.1GB. [2021-11-05 13:47:11,701 INFO L158 Benchmark]: Boogie Procedure Inliner took 141.04ms. Allocated memory is still 104.9MB. Free memory was 61.0MB in the beginning and 51.2MB in the end (delta: 9.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-05 13:47:11,701 INFO L158 Benchmark]: Boogie Preprocessor took 70.68ms. Allocated memory is still 104.9MB. Free memory was 51.2MB in the beginning and 46.4MB in the end (delta: 4.8MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-11-05 13:47:11,701 INFO L158 Benchmark]: RCFGBuilder took 715.69ms. Allocated memory is still 104.9MB. Free memory was 46.4MB in the beginning and 49.3MB in the end (delta: -2.9MB). Peak memory consumption was 15.9MB. Max. memory is 16.1GB. [2021-11-05 13:47:11,701 INFO L158 Benchmark]: TraceAbstraction took 2444.80ms. Allocated memory was 104.9MB in the beginning and 159.4MB in the end (delta: 54.5MB). Free memory was 48.8MB in the beginning and 53.3MB in the end (delta: -4.4MB). Peak memory consumption was 49.0MB. Max. memory is 16.1GB. [2021-11-05 13:47:11,702 INFO L158 Benchmark]: Witness Printer took 159.90ms. Allocated memory is still 159.4MB. Free memory was 53.3MB in the beginning and 66.9MB in the end (delta: -13.6MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2021-11-05 13:47:11,703 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 60.8MB. Free memory was 43.0MB in the beginning and 42.9MB in the end (delta: 42.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1863.87ms. Allocated memory was 60.8MB in the beginning and 104.9MB in the end (delta: 44.0MB). Free memory was 31.0MB in the beginning and 61.0MB in the end (delta: -30.0MB). Peak memory consumption was 40.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 141.04ms. Allocated memory is still 104.9MB. Free memory was 61.0MB in the beginning and 51.2MB in the end (delta: 9.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Preprocessor took 70.68ms. Allocated memory is still 104.9MB. Free memory was 51.2MB in the beginning and 46.4MB in the end (delta: 4.8MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * RCFGBuilder took 715.69ms. Allocated memory is still 104.9MB. Free memory was 46.4MB in the beginning and 49.3MB in the end (delta: -2.9MB). Peak memory consumption was 15.9MB. Max. memory is 16.1GB. * TraceAbstraction took 2444.80ms. Allocated memory was 104.9MB in the beginning and 159.4MB in the end (delta: 54.5MB). Free memory was 48.8MB in the beginning and 53.3MB in the end (delta: -4.4MB). Peak memory consumption was 49.0MB. Max. memory is 16.1GB. * Witness Printer took 159.90ms. Allocated memory is still 159.4MB. Free memory was 53.3MB in the beginning and 66.9MB in the end (delta: -13.6MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.00ms ErrorAutomatonConstructionTimeTotal, 0.00ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.00ms ErrorAutomatonConstructionTimeAvg, 0.00ms ErrorAutomatonDifferenceTimeAvg, 0.00ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 223]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 223]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 223]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 92 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 2378.91ms, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 18.09ms, AutomataDifference: 931.51ms, DeadEndRemovalTime: 0.00ms, HoareAnnotationTime: 18.98ms, InitialAbstractionConstructionTime: 6.46ms, PartialOrderReductionTime: 0.00ms, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1484 SdHoareTripleChecker+Valid, 341.90ms IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1484 mSDsluCounter, 2011 SdHoareTripleChecker+Invalid, 278.75ms Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1548 mSDsCounter, 77 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 397 IncrementalHoareTripleChecker+Invalid, 474 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 77 mSolverCounterUnsat, 463 mSDtfsCounter, 397 mSolverCounterSat, 16.55ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 89 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 113 ImplicationChecksByTransitivity, 588.30ms Time, 0.00ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=92occurred in iteration=0, InterpolantAutomatonStates: 64, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.00ms DumpTime, AutomataMinimizationStatistics: 51.33ms AutomataMinimizationTime, 6 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.00ms HoareAnnotationTime, 23 LocationsWithAnnotation, 23 PreInvPairs, 47 NumberOfFragments, 208 HoareAnnotationTreeSize, 23 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 7.13ms HoareSimplificationTime, 23 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 5.71ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 33.43ms SsaConstructionTime, 337.87ms SatisfiabilityAnalysisTime, 775.50ms InterpolantComputationTime, 243 NumberOfCodeBlocks, 243 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 237 ConstructedInterpolants, 0 QuantifiedInterpolants, 534 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 3 specifications checked. All of them hold - InvariantResult [Line: 8005]: Loop Invariant Derived loop invariant: ((((str_a == 0 && str_a == 0) && str_b == 0) && str_b == 0) || (str_a == 0 && str_a == 0)) || (str_b == 0 && str_b == 0) - InvariantResult [Line: 6253]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 6883]: Loop Invariant Derived loop invariant: str_a == 0 && str_a == 0 - InvariantResult [Line: 6801]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 8925]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 6807]: Loop Invariant Derived loop invariant: str_a == 0 && str_a == 0 - InvariantResult [Line: 7986]: Loop Invariant Derived loop invariant: ((((str_a == 0 && str_a == 0) && str_b == 0) && str_b == 0) || (str_a == 0 && str_a == 0)) || (str_b == 0 && str_b == 0) - InvariantResult [Line: 6253]: Loop Invariant Derived loop invariant: ((((str_a == 0 && str_a == 0) && str_b == 0) && str_b == 0) || (str_a == 0 && str_a == 0)) || (str_b == 0 && str_b == 0) - InvariantResult [Line: 6890]: Loop Invariant Derived loop invariant: str_a == 0 && str_a == 0 - InvariantResult [Line: 6253]: Loop Invariant Derived loop invariant: ((((str_a == 0 && str_a == 0) && str_b == 0) && str_b == 0) || (str_a == 0 && str_a == 0)) || (str_b == 0 && str_b == 0) - InvariantResult [Line: 261]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 266]: Loop Invariant Derived loop invariant: 16 == max_size - InvariantResult [Line: 6253]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 266]: Loop Invariant Derived loop invariant: str_a == 0 && str_a == 0 - InvariantResult [Line: 6890]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 6807]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 261]: Loop Invariant Derived loop invariant: str_a == 0 && str_a == 0 - InvariantResult [Line: 261]: Loop Invariant Derived loop invariant: str_a == 0 && str_a == 0 - InvariantResult [Line: 6883]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 261]: Loop Invariant Derived loop invariant: str_a == 0 && str_a == 0 - InvariantResult [Line: 6801]: Loop Invariant Derived loop invariant: str_a == 0 && str_a == 0 - InvariantResult [Line: 261]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 7437]: Loop Invariant Derived loop invariant: ((((str_a == 0 && str_a == 0) && str_b == 0) && str_b == 0) || (str_a == 0 && str_a == 0)) || (str_b == 0 && str_b == 0) RESULT: Ultimate proved your program to be correct! [2021-11-05 13:47:11,757 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE