./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_string_eq_c_str_ignore_case_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6c24879c 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_c_str_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 6334acf6662f715682aa436867bb49f37f46bbf05c989a8d5c50953f6022f7ef --- Real Ultimate output --- This is Ultimate 0.2.2-?-6c24879 [2022-07-12 11:17:26,945 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-12 11:17:26,946 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-12 11:17:26,976 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-12 11:17:26,977 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-12 11:17:26,978 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-12 11:17:26,979 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-12 11:17:26,980 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-12 11:17:26,981 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-12 11:17:26,982 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-12 11:17:26,983 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-12 11:17:26,983 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-12 11:17:26,984 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-12 11:17:26,984 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-12 11:17:26,985 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-12 11:17:26,986 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-12 11:17:26,986 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-12 11:17:26,987 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-12 11:17:26,988 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-12 11:17:26,990 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-12 11:17:26,991 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-12 11:17:26,992 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-12 11:17:26,992 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-12 11:17:26,993 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-12 11:17:26,994 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-12 11:17:26,996 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-12 11:17:26,996 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-12 11:17:26,996 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-12 11:17:26,997 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-12 11:17:26,997 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-12 11:17:26,998 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-12 11:17:26,998 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-12 11:17:26,999 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-12 11:17:27,000 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-12 11:17:27,000 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-12 11:17:27,001 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-12 11:17:27,002 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-12 11:17:27,002 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-12 11:17:27,003 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-12 11:17:27,003 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-12 11:17:27,004 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-12 11:17:27,007 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-12 11:17:27,007 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-12 11:17:27,031 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-12 11:17:27,031 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-12 11:17:27,032 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-12 11:17:27,032 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-12 11:17:27,032 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-12 11:17:27,033 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-12 11:17:27,033 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-12 11:17:27,033 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-12 11:17:27,033 INFO L138 SettingsManager]: * Use SBE=true [2022-07-12 11:17:27,034 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-12 11:17:27,034 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-12 11:17:27,034 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-12 11:17:27,034 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-12 11:17:27,035 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-12 11:17:27,035 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-12 11:17:27,035 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-12 11:17:27,035 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-12 11:17:27,035 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-12 11:17:27,035 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-12 11:17:27,035 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-12 11:17:27,036 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-12 11:17:27,036 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 11:17:27,037 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-12 11:17:27,037 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-12 11:17:27,037 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-12 11:17:27,038 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-12 11:17:27,038 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-12 11:17:27,038 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-12 11:17:27,038 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-12 11:17:27,038 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-12 11:17:27,038 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6334acf6662f715682aa436867bb49f37f46bbf05c989a8d5c50953f6022f7ef [2022-07-12 11:17:27,249 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-12 11:17:27,265 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-12 11:17:27,267 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-12 11:17:27,268 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-12 11:17:27,269 INFO L275 PluginConnector]: CDTParser initialized [2022-07-12 11:17:27,270 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_string_eq_c_str_ignore_case_harness.i [2022-07-12 11:17:27,331 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8ff3541f1/f94b4b1c9532416abbae4ad1a5963242/FLAG0e469cf3a [2022-07-12 11:17:27,890 INFO L306 CDTParser]: Found 1 translation units. [2022-07-12 11:17:27,890 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_string_eq_c_str_ignore_case_harness.i [2022-07-12 11:17:27,915 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8ff3541f1/f94b4b1c9532416abbae4ad1a5963242/FLAG0e469cf3a [2022-07-12 11:17:28,347 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8ff3541f1/f94b4b1c9532416abbae4ad1a5963242 [2022-07-12 11:17:28,350 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-12 11:17:28,351 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-12 11:17:28,352 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-12 11:17:28,352 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-12 11:17:28,354 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-12 11:17:28,355 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 11:17:28" (1/1) ... [2022-07-12 11:17:28,355 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@61856900 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 11:17:28, skipping insertion in model container [2022-07-12 11:17:28,355 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 11:17:28" (1/1) ... [2022-07-12 11:17:28,360 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-12 11:17:28,445 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-12 11:17:28,642 WARN L230 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_c_str_ignore_case_harness.i[4505,4518] [2022-07-12 11:17:28,647 WARN L230 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_c_str_ignore_case_harness.i[4565,4578] [2022-07-12 11:17:29,180 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:17:29,181 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:17:29,181 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:17:29,181 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:17:29,182 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:17:29,190 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:17:29,191 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:17:29,193 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:17:29,193 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:17:29,373 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-07-12 11:17:29,374 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-07-12 11:17:29,375 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-07-12 11:17:29,375 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-07-12 11:17:29,376 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-07-12 11:17:29,376 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-07-12 11:17:29,377 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-07-12 11:17:29,379 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-07-12 11:17:29,379 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-07-12 11:17:29,380 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-07-12 11:17:29,468 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-07-12 11:17:29,561 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:17:29,564 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:17:29,585 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 11:17:29,605 INFO L203 MainTranslator]: Completed pre-run [2022-07-12 11:17:29,628 WARN L230 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_c_str_ignore_case_harness.i[4505,4518] [2022-07-12 11:17:29,629 WARN L230 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_c_str_ignore_case_harness.i[4565,4578] [2022-07-12 11:17:29,671 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:17:29,674 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:17:29,674 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:17:29,675 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:17:29,675 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:17:29,679 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:17:29,680 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:17:29,682 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:17:29,682 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:17:29,709 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-07-12 11:17:29,710 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-07-12 11:17:29,710 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-07-12 11:17:29,710 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-07-12 11:17:29,711 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-07-12 11:17:29,711 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-07-12 11:17:29,711 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-07-12 11:17:29,711 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-07-12 11:17:29,712 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-07-12 11:17:29,712 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-07-12 11:17:29,734 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-07-12 11:17:29,768 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:17:29,769 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:17:29,778 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 11:17:29,908 INFO L208 MainTranslator]: Completed translation [2022-07-12 11:17:29,909 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 11:17:29 WrapperNode [2022-07-12 11:17:29,909 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-12 11:17:29,910 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-12 11:17:29,910 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-12 11:17:29,910 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-12 11:17:29,915 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 11:17:29" (1/1) ... [2022-07-12 11:17:30,005 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 11:17:29" (1/1) ... [2022-07-12 11:17:30,073 INFO L137 Inliner]: procedures = 681, calls = 2270, calls flagged for inlining = 59, calls inlined = 7, statements flattened = 374 [2022-07-12 11:17:30,074 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-12 11:17:30,075 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-12 11:17:30,075 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-12 11:17:30,075 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-12 11:17:30,081 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 11:17:29" (1/1) ... [2022-07-12 11:17:30,081 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 11:17:29" (1/1) ... [2022-07-12 11:17:30,089 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 11:17:29" (1/1) ... [2022-07-12 11:17:30,090 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 11:17:29" (1/1) ... [2022-07-12 11:17:30,110 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 11:17:29" (1/1) ... [2022-07-12 11:17:30,125 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 11:17:29" (1/1) ... [2022-07-12 11:17:30,136 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 11:17:29" (1/1) ... [2022-07-12 11:17:30,141 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-12 11:17:30,149 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-12 11:17:30,149 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-12 11:17:30,149 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-12 11:17:30,150 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 11:17:29" (1/1) ... [2022-07-12 11:17:30,155 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 11:17:30,166 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 11:17:30,176 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) [2022-07-12 11:17:30,185 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 [2022-07-12 11:17:30,210 INFO L130 BoogieDeclarations]: Found specification of procedure aws_string_is_valid [2022-07-12 11:17:30,211 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_string_is_valid [2022-07-12 11:17:30,211 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_string_is_allocated_bounded_length [2022-07-12 11:17:30,211 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_string_is_allocated_bounded_length [2022-07-12 11:17:30,211 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2022-07-12 11:17:30,212 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2022-07-12 11:17:30,212 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-12 11:17:30,212 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-07-12 11:17:30,212 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-07-12 11:17:30,213 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-12 11:17:30,213 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-12 11:17:30,213 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-12 11:17:30,213 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-12 11:17:30,214 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-12 11:17:30,214 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2022-07-12 11:17:30,214 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2022-07-12 11:17:30,214 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-07-12 11:17:30,214 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-07-12 11:17:30,214 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-12 11:17:30,214 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2022-07-12 11:17:30,214 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2022-07-12 11:17:30,215 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2022-07-12 11:17:30,215 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2022-07-12 11:17:30,215 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-12 11:17:30,215 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_eq_c_str_ignore_case [2022-07-12 11:17:30,215 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_eq_c_str_ignore_case [2022-07-12 11:17:30,216 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-12 11:17:30,404 INFO L234 CfgBuilder]: Building ICFG [2022-07-12 11:17:30,405 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-12 11:17:30,721 INFO L275 CfgBuilder]: Performing block encoding [2022-07-12 11:17:30,726 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-12 11:17:30,726 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-07-12 11:17:30,728 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 11:17:30 BoogieIcfgContainer [2022-07-12 11:17:30,728 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-12 11:17:30,729 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-12 11:17:30,729 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-12 11:17:30,747 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-12 11:17:30,747 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.07 11:17:28" (1/3) ... [2022-07-12 11:17:30,749 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19d6cb8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 11:17:30, skipping insertion in model container [2022-07-12 11:17:30,750 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 11:17:29" (2/3) ... [2022-07-12 11:17:30,750 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19d6cb8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 11:17:30, skipping insertion in model container [2022-07-12 11:17:30,750 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 11:17:30" (3/3) ... [2022-07-12 11:17:30,756 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_string_eq_c_str_ignore_case_harness.i [2022-07-12 11:17:30,770 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-12 11:17:30,774 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-12 11:17:30,807 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-12 11:17:30,812 INFO L357 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, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@3f31883a, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@3ba07977 [2022-07-12 11:17:30,812 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-12 11:17:30,815 INFO L276 IsEmpty]: Start isEmpty. Operand has 98 states, 65 states have (on average 1.2461538461538462) internal successors, (81), 66 states have internal predecessors, (81), 22 states have call successors, (22), 9 states have call predecessors, (22), 9 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2022-07-12 11:17:30,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-07-12 11:17:30,823 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 11:17:30,824 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 11:17:30,824 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 11:17:30,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 11:17:30,833 INFO L85 PathProgramCache]: Analyzing trace with hash -710220105, now seen corresponding path program 1 times [2022-07-12 11:17:30,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 11:17:30,839 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [31085224] [2022-07-12 11:17:30,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 11:17:30,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 11:17:30,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:17:31,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 11:17:31,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:17:31,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-12 11:17:31,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:17:31,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-12 11:17:31,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:17:31,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-12 11:17:31,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:17:31,217 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-07-12 11:17:31,219 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 11:17:31,219 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [31085224] [2022-07-12 11:17:31,220 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [31085224] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 11:17:31,220 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 11:17:31,222 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-12 11:17:31,223 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1999205808] [2022-07-12 11:17:31,224 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 11:17:31,227 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-12 11:17:31,228 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 11:17:31,251 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-12 11:17:31,252 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-12 11:17:31,254 INFO L87 Difference]: Start difference. First operand has 98 states, 65 states have (on average 1.2461538461538462) internal successors, (81), 66 states have internal predecessors, (81), 22 states have call successors, (22), 9 states have call predecessors, (22), 9 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) Second operand has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-07-12 11:17:31,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 11:17:31,294 INFO L93 Difference]: Finished difference Result 187 states and 250 transitions. [2022-07-12 11:17:31,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-12 11:17:31,296 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 36 [2022-07-12 11:17:31,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 11:17:31,305 INFO L225 Difference]: With dead ends: 187 [2022-07-12 11:17:31,305 INFO L226 Difference]: Without dead ends: 93 [2022-07-12 11:17:31,308 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-12 11:17:31,317 INFO L413 NwaCegarLoop]: 122 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 122 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 11:17:31,320 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 11:17:31,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2022-07-12 11:17:31,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 93. [2022-07-12 11:17:31,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 61 states have (on average 1.1967213114754098) internal successors, (73), 62 states have internal predecessors, (73), 22 states have call successors, (22), 9 states have call predecessors, (22), 9 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2022-07-12 11:17:31,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 116 transitions. [2022-07-12 11:17:31,355 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 116 transitions. Word has length 36 [2022-07-12 11:17:31,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 11:17:31,356 INFO L495 AbstractCegarLoop]: Abstraction has 93 states and 116 transitions. [2022-07-12 11:17:31,357 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-07-12 11:17:31,357 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 116 transitions. [2022-07-12 11:17:31,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-07-12 11:17:31,361 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 11:17:31,361 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 11:17:31,362 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-12 11:17:31,362 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 11:17:31,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 11:17:31,363 INFO L85 PathProgramCache]: Analyzing trace with hash 1895803449, now seen corresponding path program 1 times [2022-07-12 11:17:31,364 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 11:17:31,364 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [305391369] [2022-07-12 11:17:31,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 11:17:31,364 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 11:17:31,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:17:31,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 11:17:31,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:17:31,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-12 11:17:31,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:17:31,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-12 11:17:31,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:17:31,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-12 11:17:31,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:17:31,559 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-07-12 11:17:31,560 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 11:17:31,560 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [305391369] [2022-07-12 11:17:31,560 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [305391369] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 11:17:31,560 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 11:17:31,560 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-12 11:17:31,560 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1561924602] [2022-07-12 11:17:31,560 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 11:17:31,561 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-12 11:17:31,561 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 11:17:31,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-12 11:17:31,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-12 11:17:31,562 INFO L87 Difference]: Start difference. First operand 93 states and 116 transitions. Second operand has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 3 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2022-07-12 11:17:31,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 11:17:31,606 INFO L93 Difference]: Finished difference Result 136 states and 174 transitions. [2022-07-12 11:17:31,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-12 11:17:31,606 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 3 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 36 [2022-07-12 11:17:31,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 11:17:31,609 INFO L225 Difference]: With dead ends: 136 [2022-07-12 11:17:31,609 INFO L226 Difference]: Without dead ends: 93 [2022-07-12 11:17:31,610 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-12 11:17:31,612 INFO L413 NwaCegarLoop]: 122 mSDtfsCounter, 11 mSDsluCounter, 229 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 351 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 11:17:31,615 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 351 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 11:17:31,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2022-07-12 11:17:31,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 93. [2022-07-12 11:17:31,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 61 states have (on average 1.180327868852459) internal successors, (72), 62 states have internal predecessors, (72), 22 states have call successors, (22), 9 states have call predecessors, (22), 9 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2022-07-12 11:17:31,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 115 transitions. [2022-07-12 11:17:31,627 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 115 transitions. Word has length 36 [2022-07-12 11:17:31,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 11:17:31,628 INFO L495 AbstractCegarLoop]: Abstraction has 93 states and 115 transitions. [2022-07-12 11:17:31,629 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 3 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2022-07-12 11:17:31,629 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 115 transitions. [2022-07-12 11:17:31,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2022-07-12 11:17:31,632 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 11:17:31,632 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1] [2022-07-12 11:17:31,633 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-12 11:17:31,633 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 11:17:31,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 11:17:31,634 INFO L85 PathProgramCache]: Analyzing trace with hash -267916698, now seen corresponding path program 1 times [2022-07-12 11:17:31,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 11:17:31,635 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1049190553] [2022-07-12 11:17:31,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 11:17:31,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 11:17:31,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:17:31,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 11:17:31,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:17:31,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 11:17:31,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:17:31,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 11:17:31,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:17:31,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 11:17:31,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:17:32,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-12 11:17:32,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:17:32,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 11:17:32,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:17:32,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-12 11:17:32,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:17:32,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-07-12 11:17:32,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:17:32,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-07-12 11:17:32,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:17:32,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-12 11:17:32,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:17:32,193 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-07-12 11:17:32,193 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 11:17:32,193 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1049190553] [2022-07-12 11:17:32,193 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1049190553] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-12 11:17:32,194 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1733824062] [2022-07-12 11:17:32,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 11:17:32,194 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 11:17:32,194 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 11:17:32,204 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-12 11:17:32,205 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-12 11:17:32,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:17:32,396 INFO L263 TraceCheckSpWp]: Trace formula consists of 838 conjuncts, 21 conjunts are in the unsatisfiable core [2022-07-12 11:17:32,401 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 11:17:32,532 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-07-12 11:17:32,532 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 11:17:32,534 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1733824062] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 11:17:32,536 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-12 11:17:32,537 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [17] total 22 [2022-07-12 11:17:32,537 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [864266920] [2022-07-12 11:17:32,537 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 11:17:32,537 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-07-12 11:17:32,537 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 11:17:32,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-07-12 11:17:32,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=416, Unknown=0, NotChecked=0, Total=462 [2022-07-12 11:17:32,539 INFO L87 Difference]: Start difference. First operand 93 states and 115 transitions. Second operand has 11 states, 11 states have (on average 3.5454545454545454) internal successors, (39), 9 states have internal predecessors, (39), 5 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (10), 7 states have call predecessors, (10), 5 states have call successors, (10) [2022-07-12 11:17:32,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 11:17:32,695 INFO L93 Difference]: Finished difference Result 115 states and 140 transitions. [2022-07-12 11:17:32,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-12 11:17:32,695 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 3.5454545454545454) internal successors, (39), 9 states have internal predecessors, (39), 5 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (10), 7 states have call predecessors, (10), 5 states have call successors, (10) Word has length 70 [2022-07-12 11:17:32,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 11:17:32,697 INFO L225 Difference]: With dead ends: 115 [2022-07-12 11:17:32,697 INFO L226 Difference]: Without dead ends: 93 [2022-07-12 11:17:32,697 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=64, Invalid=586, Unknown=0, NotChecked=0, Total=650 [2022-07-12 11:17:32,698 INFO L413 NwaCegarLoop]: 103 mSDtfsCounter, 38 mSDsluCounter, 840 mSDsCounter, 0 mSdLazyCounter, 125 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 943 SdHoareTripleChecker+Invalid, 136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-12 11:17:32,698 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 943 Invalid, 136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 125 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-12 11:17:32,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2022-07-12 11:17:32,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 93. [2022-07-12 11:17:32,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 61 states have (on average 1.1639344262295082) internal successors, (71), 62 states have internal predecessors, (71), 22 states have call successors, (22), 9 states have call predecessors, (22), 9 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2022-07-12 11:17:32,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 114 transitions. [2022-07-12 11:17:32,704 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 114 transitions. Word has length 70 [2022-07-12 11:17:32,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 11:17:32,705 INFO L495 AbstractCegarLoop]: Abstraction has 93 states and 114 transitions. [2022-07-12 11:17:32,705 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 3.5454545454545454) internal successors, (39), 9 states have internal predecessors, (39), 5 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (10), 7 states have call predecessors, (10), 5 states have call successors, (10) [2022-07-12 11:17:32,705 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 114 transitions. [2022-07-12 11:17:32,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-07-12 11:17:32,707 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 11:17:32,707 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1] [2022-07-12 11:17:32,727 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-07-12 11:17:32,920 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 11:17:32,921 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 11:17:32,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 11:17:32,921 INFO L85 PathProgramCache]: Analyzing trace with hash -1941590924, now seen corresponding path program 1 times [2022-07-12 11:17:32,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 11:17:32,921 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1321177031] [2022-07-12 11:17:32,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 11:17:32,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 11:17:32,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:17:33,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 11:17:33,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:17:33,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 11:17:33,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:17:33,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 11:17:33,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:17:33,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 11:17:33,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:17:33,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-12 11:17:33,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:17:33,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 11:17:33,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:17:33,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-12 11:17:33,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:17:33,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-07-12 11:17:33,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:17:33,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-07-12 11:17:33,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:17:33,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-07-12 11:17:33,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:17:33,103 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-07-12 11:17:33,103 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 11:17:33,104 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1321177031] [2022-07-12 11:17:33,104 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1321177031] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 11:17:33,104 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 11:17:33,104 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-12 11:17:33,104 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [977456625] [2022-07-12 11:17:33,104 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 11:17:33,105 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-12 11:17:33,105 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 11:17:33,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-12 11:17:33,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-07-12 11:17:33,105 INFO L87 Difference]: Start difference. First operand 93 states and 114 transitions. Second operand has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 4 states have internal predecessors, (40), 3 states have call successors, (11), 4 states have call predecessors, (11), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2022-07-12 11:17:33,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 11:17:33,260 INFO L93 Difference]: Finished difference Result 125 states and 154 transitions. [2022-07-12 11:17:33,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 11:17:33,260 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 4 states have internal predecessors, (40), 3 states have call successors, (11), 4 states have call predecessors, (11), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 71 [2022-07-12 11:17:33,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 11:17:33,279 INFO L225 Difference]: With dead ends: 125 [2022-07-12 11:17:33,279 INFO L226 Difference]: Without dead ends: 93 [2022-07-12 11:17:33,280 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-07-12 11:17:33,280 INFO L413 NwaCegarLoop]: 105 mSDtfsCounter, 78 mSDsluCounter, 141 mSDsCounter, 0 mSdLazyCounter, 154 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 246 SdHoareTripleChecker+Invalid, 207 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 154 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-12 11:17:33,281 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 246 Invalid, 207 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 154 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-12 11:17:33,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2022-07-12 11:17:33,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 93. [2022-07-12 11:17:33,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 61 states have (on average 1.1475409836065573) internal successors, (70), 62 states have internal predecessors, (70), 22 states have call successors, (22), 9 states have call predecessors, (22), 9 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2022-07-12 11:17:33,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 113 transitions. [2022-07-12 11:17:33,295 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 113 transitions. Word has length 71 [2022-07-12 11:17:33,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 11:17:33,295 INFO L495 AbstractCegarLoop]: Abstraction has 93 states and 113 transitions. [2022-07-12 11:17:33,295 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 4 states have internal predecessors, (40), 3 states have call successors, (11), 4 states have call predecessors, (11), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2022-07-12 11:17:33,295 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 113 transitions. [2022-07-12 11:17:33,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-07-12 11:17:33,297 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 11:17:33,297 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 11:17:33,297 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-12 11:17:33,297 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 11:17:33,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 11:17:33,298 INFO L85 PathProgramCache]: Analyzing trace with hash -156781124, now seen corresponding path program 1 times [2022-07-12 11:17:33,298 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 11:17:33,298 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1135461178] [2022-07-12 11:17:33,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 11:17:33,298 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 11:17:33,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:17:33,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 11:17:33,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:17:33,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 11:17:33,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:17:33,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 11:17:33,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:17:33,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 11:17:33,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:17:33,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-12 11:17:33,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:17:33,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 11:17:33,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:17:33,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-12 11:17:33,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:17:33,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-07-12 11:17:33,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:17:33,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-12 11:17:33,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:17:33,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-12 11:17:33,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:17:33,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-12 11:17:33,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:17:33,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 11:17:33,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:17:33,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-12 11:17:33,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:17:33,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-07-12 11:17:33,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:17:33,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-07-12 11:17:33,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:17:33,797 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2022-07-12 11:17:33,797 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 11:17:33,797 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1135461178] [2022-07-12 11:17:33,797 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1135461178] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-12 11:17:33,797 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [258940513] [2022-07-12 11:17:33,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 11:17:33,798 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 11:17:33,798 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 11:17:33,799 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-12 11:17:33,839 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-07-12 11:17:33,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:17:33,990 INFO L263 TraceCheckSpWp]: Trace formula consists of 911 conjuncts, 21 conjunts are in the unsatisfiable core [2022-07-12 11:17:33,994 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 11:17:34,135 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 20 proven. 2 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-07-12 11:17:34,135 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-12 11:17:34,243 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2022-07-12 11:17:34,244 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [258940513] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-12 11:17:34,244 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-12 11:17:34,244 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 11, 11] total 27 [2022-07-12 11:17:34,244 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2023027312] [2022-07-12 11:17:34,244 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-12 11:17:34,244 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2022-07-12 11:17:34,244 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 11:17:34,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2022-07-12 11:17:34,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=642, Unknown=0, NotChecked=0, Total=702 [2022-07-12 11:17:34,245 INFO L87 Difference]: Start difference. First operand 93 states and 113 transitions. Second operand has 27 states, 25 states have (on average 3.12) internal successors, (78), 20 states have internal predecessors, (78), 10 states have call successors, (26), 4 states have call predecessors, (26), 7 states have return successors, (25), 13 states have call predecessors, (25), 10 states have call successors, (25) [2022-07-12 11:17:34,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 11:17:34,709 INFO L93 Difference]: Finished difference Result 108 states and 125 transitions. [2022-07-12 11:17:34,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-12 11:17:34,710 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 25 states have (on average 3.12) internal successors, (78), 20 states have internal predecessors, (78), 10 states have call successors, (26), 4 states have call predecessors, (26), 7 states have return successors, (25), 13 states have call predecessors, (25), 10 states have call successors, (25) Word has length 99 [2022-07-12 11:17:34,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 11:17:34,710 INFO L225 Difference]: With dead ends: 108 [2022-07-12 11:17:34,710 INFO L226 Difference]: Without dead ends: 0 [2022-07-12 11:17:34,711 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 256 GetRequests, 219 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 228 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=146, Invalid=1336, Unknown=0, NotChecked=0, Total=1482 [2022-07-12 11:17:34,711 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 42 mSDsluCounter, 245 mSDsCounter, 0 mSdLazyCounter, 440 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 275 SdHoareTripleChecker+Invalid, 469 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 440 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-12 11:17:34,712 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 275 Invalid, 469 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 440 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-12 11:17:34,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-07-12 11:17:34,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-07-12 11:17:34,712 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) [2022-07-12 11:17:34,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-07-12 11:17:34,712 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 99 [2022-07-12 11:17:34,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 11:17:34,712 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-12 11:17:34,713 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 25 states have (on average 3.12) internal successors, (78), 20 states have internal predecessors, (78), 10 states have call successors, (26), 4 states have call predecessors, (26), 7 states have return successors, (25), 13 states have call predecessors, (25), 10 states have call successors, (25) [2022-07-12 11:17:34,713 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-07-12 11:17:34,713 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-07-12 11:17:34,715 INFO L805 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-07-12 11:17:34,738 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-07-12 11:17:34,923 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 11:17:34,925 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-07-12 11:17:35,064 INFO L895 garLoopResultBuilder]: At program point L6816(lines 6807 6817) the Hoare annotation is: (and (not (= |ensure_string_is_allocated_bounded_length_ensure_string_is_allocated_~str~0#1.base| 0)) (or (= |ensure_string_is_allocated_bounded_length_#in~max_size#1| |ensure_string_is_allocated_bounded_length_~max_size#1|) (= (+ (- 16) |ensure_string_is_allocated_bounded_length_~max_size#1|) 0)) (not (= |ensure_string_is_allocated_bounded_length_ensure_string_is_allocated_#res#1.base| 0)) (not (= |ensure_string_is_allocated_bounded_length_#in~max_size#1| 16))) [2022-07-12 11:17:35,064 INFO L899 garLoopResultBuilder]: For program point ensure_string_is_allocated_bounded_lengthEXIT(lines 6801 6805) no Hoare annotation was computed. [2022-07-12 11:17:35,064 INFO L899 garLoopResultBuilder]: For program point L6811-1(lines 6811 6812) no Hoare annotation was computed. [2022-07-12 11:17:35,064 INFO L895 garLoopResultBuilder]: At program point L6811(line 6811) the Hoare annotation is: (and (not (= |ensure_string_is_allocated_bounded_length_ensure_string_is_allocated_~str~0#1.base| 0)) (or (= |ensure_string_is_allocated_bounded_length_#in~max_size#1| |ensure_string_is_allocated_bounded_length_~max_size#1|) (= (+ (- 16) |ensure_string_is_allocated_bounded_length_~max_size#1|) 0)) (not (= |ensure_string_is_allocated_bounded_length_#in~max_size#1| 16))) [2022-07-12 11:17:35,064 INFO L899 garLoopResultBuilder]: For program point L6811-5(lines 6811 6812) no Hoare annotation was computed. [2022-07-12 11:17:35,064 INFO L899 garLoopResultBuilder]: For program point L6808-1(line 6808) no Hoare annotation was computed. [2022-07-12 11:17:35,065 INFO L895 garLoopResultBuilder]: At program point L6808(line 6808) the Hoare annotation is: (let ((.cse0 (not (= |ensure_string_is_allocated_bounded_length_#in~max_size#1| 16)))) (and (or (<= 0 (+ (* 18446744073709551616 (div (+ (* (- 1) |ensure_string_is_allocated_bounded_length_ensure_string_is_allocated_~len#1|) 15) 18446744073709551616)) |ensure_string_is_allocated_bounded_length_ensure_string_is_allocated_~len#1|)) .cse0) (= |old(#length)| |#length|) (= |old(#memory_real)| |#memory_real|) (= |#memory_int| |old(#memory_int)|) (or (= |ensure_string_is_allocated_bounded_length_#in~max_size#1| |ensure_string_is_allocated_bounded_length_~max_size#1|) (= (+ (- 16) |ensure_string_is_allocated_bounded_length_~max_size#1|) 0)) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (or .cse0 (let ((.cse1 (* 18446744073709551616 (div |ensure_string_is_allocated_bounded_length_~len~1#1| 18446744073709551616)))) (<= .cse1 (+ |ensure_string_is_allocated_bounded_length_~len~1#1| (* 18446744073709551616 (div (+ .cse1 15 (* (- 1) |ensure_string_is_allocated_bounded_length_~len~1#1|)) 18446744073709551616)))))) (= |old(#valid)| |#valid|))) [2022-07-12 11:17:35,065 INFO L899 garLoopResultBuilder]: For program point L6811-3(line 6811) no Hoare annotation was computed. [2022-07-12 11:17:35,065 INFO L895 garLoopResultBuilder]: At program point L6811-2(line 6811) the Hoare annotation is: (and (not (= |ensure_string_is_allocated_bounded_length_ensure_string_is_allocated_~str~0#1.base| 0)) (or (= |ensure_string_is_allocated_bounded_length_#in~max_size#1| |ensure_string_is_allocated_bounded_length_~max_size#1|) (= (+ (- 16) |ensure_string_is_allocated_bounded_length_~max_size#1|) 0)) (not (= |ensure_string_is_allocated_bounded_length_#in~max_size#1| 16))) [2022-07-12 11:17:35,065 INFO L895 garLoopResultBuilder]: At program point L6802(line 6802) the Hoare annotation is: (and (= |old(#length)| |#length|) (= |old(#memory_real)| |#memory_real|) (= |#memory_int| |old(#memory_int)|) (or (= |ensure_string_is_allocated_bounded_length_#in~max_size#1| |ensure_string_is_allocated_bounded_length_~max_size#1|) (= (+ (- 16) |ensure_string_is_allocated_bounded_length_~max_size#1|) 0)) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= |old(#valid)| |#valid|)) [2022-07-12 11:17:35,065 INFO L899 garLoopResultBuilder]: For program point L6803-1(line 6803) no Hoare annotation was computed. [2022-07-12 11:17:35,065 INFO L895 garLoopResultBuilder]: At program point L6803(line 6803) the Hoare annotation is: (and (= |old(#length)| |#length|) (= |old(#memory_real)| |#memory_real|) (= |#memory_int| |old(#memory_int)|) (or (= |ensure_string_is_allocated_bounded_length_#in~max_size#1| |ensure_string_is_allocated_bounded_length_~max_size#1|) (= (+ (- 16) |ensure_string_is_allocated_bounded_length_~max_size#1|) 0)) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= |old(#valid)| |#valid|)) [2022-07-12 11:17:35,065 INFO L895 garLoopResultBuilder]: At program point ensure_string_is_allocated_bounded_lengthENTRY(lines 6801 6805) the Hoare annotation is: (and (= |old(#length)| |#length|) (= |old(#memory_real)| |#memory_real|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= |old(#valid)| |#valid|)) [2022-07-12 11:17:35,065 INFO L899 garLoopResultBuilder]: For program point L6802-1(line 6802) no Hoare annotation was computed. [2022-07-12 11:17:35,065 INFO L899 garLoopResultBuilder]: For program point ensure_string_is_allocated_bounded_lengthFINAL(lines 6801 6805) no Hoare annotation was computed. [2022-07-12 11:17:35,065 INFO L895 garLoopResultBuilder]: At program point bounded_mallocENTRY(lines 6883 6888) the Hoare annotation is: (and (= |old(#length)| |#length|) (= |old(#valid)| |#valid|)) [2022-07-12 11:17:35,065 INFO L899 garLoopResultBuilder]: For program point bounded_mallocFINAL(lines 6883 6888) no Hoare annotation was computed. [2022-07-12 11:17:35,066 INFO L899 garLoopResultBuilder]: For program point bounded_mallocEXIT(lines 6883 6888) no Hoare annotation was computed. [2022-07-12 11:17:35,066 INFO L899 garLoopResultBuilder]: For program point L6884-1(lines 6884 6886) no Hoare annotation was computed. [2022-07-12 11:17:35,066 INFO L895 garLoopResultBuilder]: At program point L6884(lines 6884 6886) the Hoare annotation is: (and (= |bounded_malloc_#in~size| bounded_malloc_~size) (= |old(#length)| |#length|) (= |old(#valid)| |#valid|)) [2022-07-12 11:17:35,066 INFO L899 garLoopResultBuilder]: For program point nondet_boolFINAL(line 261) no Hoare annotation was computed. [2022-07-12 11:17:35,066 INFO L899 garLoopResultBuilder]: For program point nondet_boolEXIT(line 261) no Hoare annotation was computed. [2022-07-12 11:17:35,066 INFO L902 garLoopResultBuilder]: At program point nondet_boolENTRY(line 261) the Hoare annotation is: true [2022-07-12 11:17:35,066 INFO L899 garLoopResultBuilder]: For program point aws_array_eq_c_str_ignore_caseEXIT(lines 8042 8075) no Hoare annotation was computed. [2022-07-12 11:17:35,066 INFO L902 garLoopResultBuilder]: At program point aws_array_eq_c_str_ignore_caseENTRY(lines 8042 8075) the Hoare annotation is: true [2022-07-12 11:17:35,066 INFO L899 garLoopResultBuilder]: For program point L8061(lines 8061 8065) no Hoare annotation was computed. [2022-07-12 11:17:35,066 INFO L899 garLoopResultBuilder]: For program point L8059-4(lines 8059 8072) no Hoare annotation was computed. [2022-07-12 11:17:35,066 INFO L902 garLoopResultBuilder]: At program point L8059-3(lines 8059 8072) the Hoare annotation is: true [2022-07-12 11:17:35,066 INFO L899 garLoopResultBuilder]: For program point L8059-2(lines 8059 8072) no Hoare annotation was computed. [2022-07-12 11:17:35,066 INFO L899 garLoopResultBuilder]: For program point L8047(lines 8047 8049) no Hoare annotation was computed. [2022-07-12 11:17:35,066 INFO L902 garLoopResultBuilder]: At program point L8044-1(line 8044) the Hoare annotation is: true [2022-07-12 11:17:35,066 INFO L902 garLoopResultBuilder]: At program point L8044(line 8044) the Hoare annotation is: true [2022-07-12 11:17:35,066 INFO L899 garLoopResultBuilder]: For program point aws_array_eq_c_str_ignore_caseFINAL(lines 8042 8075) no Hoare annotation was computed. [2022-07-12 11:17:35,066 INFO L899 garLoopResultBuilder]: For program point L8067(lines 8067 8071) no Hoare annotation was computed. [2022-07-12 11:17:35,066 INFO L899 garLoopResultBuilder]: For program point L211-2(lines 210 212) no Hoare annotation was computed. [2022-07-12 11:17:35,066 INFO L902 garLoopResultBuilder]: At program point assume_abort_if_notENTRY(lines 210 212) the Hoare annotation is: true [2022-07-12 11:17:35,066 INFO L899 garLoopResultBuilder]: For program point L211(line 211) no Hoare annotation was computed. [2022-07-12 11:17:35,067 INFO L899 garLoopResultBuilder]: For program point assume_abort_if_notEXIT(lines 210 212) no Hoare annotation was computed. [2022-07-12 11:17:35,067 INFO L899 garLoopResultBuilder]: For program point can_fail_allocatorFINAL(lines 6890 6892) no Hoare annotation was computed. [2022-07-12 11:17:35,067 INFO L899 garLoopResultBuilder]: For program point can_fail_allocatorEXIT(lines 6890 6892) no Hoare annotation was computed. [2022-07-12 11:17:35,067 INFO L902 garLoopResultBuilder]: At program point can_fail_allocatorENTRY(lines 6890 6892) the Hoare annotation is: true [2022-07-12 11:17:35,067 INFO L902 garLoopResultBuilder]: At program point aws_string_is_validENTRY(lines 6253 6258) the Hoare annotation is: true [2022-07-12 11:17:35,067 INFO L899 garLoopResultBuilder]: For program point L6257-2(line 6257) no Hoare annotation was computed. [2022-07-12 11:17:35,067 INFO L899 garLoopResultBuilder]: For program point L6257-3(line 6257) no Hoare annotation was computed. [2022-07-12 11:17:35,067 INFO L899 garLoopResultBuilder]: For program point L6257(line 6257) no Hoare annotation was computed. [2022-07-12 11:17:35,067 INFO L899 garLoopResultBuilder]: For program point aws_string_is_validFINAL(lines 6253 6258) no Hoare annotation was computed. [2022-07-12 11:17:35,067 INFO L899 garLoopResultBuilder]: For program point L6257-5(line 6257) no Hoare annotation was computed. [2022-07-12 11:17:35,067 INFO L899 garLoopResultBuilder]: For program point aws_string_is_validEXIT(lines 6253 6258) no Hoare annotation was computed. [2022-07-12 11:17:35,067 INFO L899 garLoopResultBuilder]: For program point nondet_uint64_tEXIT(line 266) no Hoare annotation was computed. [2022-07-12 11:17:35,067 INFO L902 garLoopResultBuilder]: At program point nondet_uint64_tENTRY(line 266) the Hoare annotation is: true [2022-07-12 11:17:35,067 INFO L899 garLoopResultBuilder]: For program point nondet_uint64_tFINAL(line 266) no Hoare annotation was computed. [2022-07-12 11:17:35,067 INFO L899 garLoopResultBuilder]: For program point L7608(lines 7608 7616) no Hoare annotation was computed. [2022-07-12 11:17:35,067 INFO L895 garLoopResultBuilder]: At program point L8921(line 8921) the Hoare annotation is: false [2022-07-12 11:17:35,067 INFO L899 garLoopResultBuilder]: For program point L8921-1(line 8921) no Hoare annotation was computed. [2022-07-12 11:17:35,067 INFO L899 garLoopResultBuilder]: For program point L6820-1(line 6820) no Hoare annotation was computed. [2022-07-12 11:17:35,067 INFO L895 garLoopResultBuilder]: At program point L6820(line 6820) the Hoare annotation is: (and (= |ULTIMATE.start_aws_string_eq_c_str_ignore_case_harness_~str~3#1.base| 0) (= |ULTIMATE.start_aws_string_eq_c_str_ignore_case_harness_~str~3#1.offset| 0)) [2022-07-12 11:17:35,067 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-07-12 11:17:35,067 INFO L899 garLoopResultBuilder]: For program point L7617(lines 7617 7625) no Hoare annotation was computed. [2022-07-12 11:17:35,068 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-07-12 11:17:35,068 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-07-12 11:17:35,068 INFO L899 garLoopResultBuilder]: For program point L8918(lines 8918 8922) no Hoare annotation was computed. [2022-07-12 11:17:35,068 INFO L895 garLoopResultBuilder]: At program point L7626(line 7626) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_aws_string_eq_c_str_ignore_case_harness_~str~3#1.base| 0))) (or (and .cse0 (= |ULTIMATE.start_aws_string_eq_c_str_ignore_case_harness_~str~3#1.offset| 0)) (and (not (= |ULTIMATE.start_aws_string_eq_c_str_ignore_case_~str#1.base| 0)) (not .cse0) (= 0 |ULTIMATE.start_aws_string_eq_c_str_ignore_case_harness_~c_str~0#1.offset|) (= |ULTIMATE.start_aws_string_eq_c_str_ignore_case_harness_~c_str~0#1.base| 0)))) [2022-07-12 11:17:35,068 INFO L895 garLoopResultBuilder]: At program point L7626-2(lines 7605 7627) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_aws_string_eq_c_str_ignore_case_harness_~str~3#1.base| 0))) (or (and .cse0 (= |ULTIMATE.start_aws_string_eq_c_str_ignore_case_harness_~str~3#1.offset| 0)) (and (not (= |ULTIMATE.start_aws_string_eq_c_str_ignore_case_~str#1.base| 0)) (not .cse0) (= 0 |ULTIMATE.start_aws_string_eq_c_str_ignore_case_harness_~c_str~0#1.offset|) (= |ULTIMATE.start_aws_string_eq_c_str_ignore_case_harness_~c_str~0#1.base| 0)))) [2022-07-12 11:17:35,068 INFO L899 garLoopResultBuilder]: For program point L7626-1(line 7626) no Hoare annotation was computed. [2022-07-12 11:17:35,068 INFO L895 garLoopResultBuilder]: At program point L6821-1(line 6821) the Hoare annotation is: (and (= |ULTIMATE.start_aws_string_eq_c_str_ignore_case_harness_~str~3#1.base| 0) (= |ULTIMATE.start_aws_string_eq_c_str_ignore_case_harness_~str~3#1.offset| 0)) [2022-07-12 11:17:35,068 INFO L895 garLoopResultBuilder]: At program point L6821(line 6821) the Hoare annotation is: (and (= |ULTIMATE.start_aws_string_eq_c_str_ignore_case_harness_~str~3#1.base| 0) (= |ULTIMATE.start_aws_string_eq_c_str_ignore_case_harness_~str~3#1.offset| 0)) [2022-07-12 11:17:35,068 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-07-12 11:17:35,068 INFO L895 garLoopResultBuilder]: At program point L6272(lines 6263 6273) the Hoare annotation is: false [2022-07-12 11:17:35,068 INFO L899 garLoopResultBuilder]: For program point L8919-2(line 8919) no Hoare annotation was computed. [2022-07-12 11:17:35,068 INFO L895 garLoopResultBuilder]: At program point L8915(line 8915) the Hoare annotation is: (and (= |ULTIMATE.start_aws_string_eq_c_str_ignore_case_harness_~str~3#1.base| 0) (= |ULTIMATE.start_aws_string_eq_c_str_ignore_case_harness_~str~3#1.offset| 0)) [2022-07-12 11:17:35,068 INFO L899 garLoopResultBuilder]: For program point L8915-1(lines 8915 8916) no Hoare annotation was computed. [2022-07-12 11:17:35,068 INFO L895 garLoopResultBuilder]: At program point L8919(line 8919) the Hoare annotation is: false [2022-07-12 11:17:35,068 INFO L895 garLoopResultBuilder]: At program point L8919-1(line 8919) the Hoare annotation is: false [2022-07-12 11:17:35,068 INFO L895 garLoopResultBuilder]: At program point L6826(line 6826) the Hoare annotation is: (and (= |ULTIMATE.start_aws_string_eq_c_str_ignore_case_harness_~str~3#1.base| 0) (= |ULTIMATE.start_aws_string_eq_c_str_ignore_case_harness_~str~3#1.offset| 0)) [2022-07-12 11:17:35,068 INFO L899 garLoopResultBuilder]: For program point L8915-3(lines 8915 8916) no Hoare annotation was computed. [2022-07-12 11:17:35,068 INFO L899 garLoopResultBuilder]: For program point L8911(lines 8911 8923) no Hoare annotation was computed. [2022-07-12 11:17:35,068 INFO L899 garLoopResultBuilder]: For program point L6822(line 6822) no Hoare annotation was computed. [2022-07-12 11:17:35,068 INFO L899 garLoopResultBuilder]: For program point L6826-1(line 6826) no Hoare annotation was computed. [2022-07-12 11:17:35,068 INFO L902 garLoopResultBuilder]: At program point L8924(line 8924) the Hoare annotation is: true [2022-07-12 11:17:35,069 INFO L899 garLoopResultBuilder]: For program point L7607(line 7607) no Hoare annotation was computed. [2022-07-12 11:17:35,069 INFO L899 garLoopResultBuilder]: For program point L7607-5(line 7607) no Hoare annotation was computed. [2022-07-12 11:17:35,069 INFO L895 garLoopResultBuilder]: At program point L7607-4(line 7607) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_aws_string_eq_c_str_ignore_case_harness_~str~3#1.base| 0))) (or (and .cse0 (= |ULTIMATE.start_aws_string_eq_c_str_ignore_case_harness_~str~3#1.offset| 0)) (and (not (= |ULTIMATE.start_aws_string_eq_c_str_ignore_case_~str#1.base| 0)) (not .cse0) (= 0 |ULTIMATE.start_aws_string_eq_c_str_ignore_case_harness_~c_str~0#1.offset|) (= |ULTIMATE.start_aws_string_eq_c_str_ignore_case_harness_~c_str~0#1.base| 0)))) [2022-07-12 11:17:35,069 INFO L895 garLoopResultBuilder]: At program point L8920(line 8920) the Hoare annotation is: false [2022-07-12 11:17:35,069 INFO L899 garLoopResultBuilder]: For program point L7607-3(line 7607) no Hoare annotation was computed. [2022-07-12 11:17:35,069 INFO L899 garLoopResultBuilder]: For program point L8920-1(line 8920) no Hoare annotation was computed. [2022-07-12 11:17:35,069 INFO L895 garLoopResultBuilder]: At program point L7607-2(line 7607) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_aws_string_eq_c_str_ignore_case_harness_~str~3#1.base| 0))) (or (and .cse0 (= |ULTIMATE.start_aws_string_eq_c_str_ignore_case_harness_~str~3#1.offset| 0)) (and (not (= |ULTIMATE.start_aws_string_eq_c_str_ignore_case_~str#1.base| 0)) (not .cse0) (= 0 |ULTIMATE.start_aws_string_eq_c_str_ignore_case_harness_~c_str~0#1.offset|) (= |ULTIMATE.start_aws_string_eq_c_str_ignore_case_harness_~c_str~0#1.base| 0)))) [2022-07-12 11:17:35,069 INFO L899 garLoopResultBuilder]: For program point L8912-3(line 8912) no Hoare annotation was computed. [2022-07-12 11:17:35,069 INFO L899 garLoopResultBuilder]: For program point L8912-5(lines 8912 8913) no Hoare annotation was computed. [2022-07-12 11:17:35,069 INFO L902 garLoopResultBuilder]: At program point L8912(line 8912) the Hoare annotation is: true [2022-07-12 11:17:35,069 INFO L895 garLoopResultBuilder]: At program point L6827(lines 6819 6828) the Hoare annotation is: (and (= |ULTIMATE.start_aws_string_eq_c_str_ignore_case_harness_~str~3#1.base| 0) (= |ULTIMATE.start_aws_string_eq_c_str_ignore_case_harness_~str~3#1.offset| 0)) [2022-07-12 11:17:35,069 INFO L899 garLoopResultBuilder]: For program point L8912-1(lines 8912 8913) no Hoare annotation was computed. [2022-07-12 11:17:35,069 INFO L902 garLoopResultBuilder]: At program point L8912-2(line 8912) the Hoare annotation is: true [2022-07-12 11:17:35,069 INFO L899 garLoopResultBuilder]: For program point L223(line 223) no Hoare annotation was computed. [2022-07-12 11:17:35,069 INFO L902 garLoopResultBuilder]: At program point __VERIFIER_assertENTRY(lines 222 224) the Hoare annotation is: true [2022-07-12 11:17:35,069 INFO L899 garLoopResultBuilder]: For program point L223-1(line 223) no Hoare annotation was computed. [2022-07-12 11:17:35,069 INFO L899 garLoopResultBuilder]: For program point L223-3(lines 222 224) no Hoare annotation was computed. [2022-07-12 11:17:35,069 INFO L899 garLoopResultBuilder]: For program point __VERIFIER_assertEXIT(lines 222 224) no Hoare annotation was computed. [2022-07-12 11:17:35,070 INFO L899 garLoopResultBuilder]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 223) no Hoare annotation was computed. [2022-07-12 11:17:35,085 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2022-07-12 11:17:35,086 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-12 11:17:35,096 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.07 11:17:35 BoogieIcfgContainer [2022-07-12 11:17:35,096 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-12 11:17:35,096 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-12 11:17:35,096 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-12 11:17:35,097 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-12 11:17:35,097 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 11:17:30" (3/4) ... [2022-07-12 11:17:35,099 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-07-12 11:17:35,105 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ensure_string_is_allocated_bounded_length [2022-07-12 11:17:35,105 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure bounded_malloc [2022-07-12 11:17:35,105 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure nondet_uint64_t [2022-07-12 11:17:35,105 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure nondet_bool [2022-07-12 11:17:35,105 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure aws_array_eq_c_str_ignore_case [2022-07-12 11:17:35,105 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2022-07-12 11:17:35,105 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2022-07-12 11:17:35,106 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure can_fail_allocator [2022-07-12 11:17:35,106 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure aws_string_is_valid [2022-07-12 11:17:35,116 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 28 nodes and edges [2022-07-12 11:17:35,116 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2022-07-12 11:17:35,117 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-07-12 11:17:35,117 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-07-12 11:17:35,143 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(str == 0) && (\old(max_size) == max_size || -16 + max_size == 0)) && !(\result == 0)) && !(\old(max_size) == 16) [2022-07-12 11:17:35,223 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-12 11:17:35,223 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-12 11:17:35,223 INFO L158 Benchmark]: Toolchain (without parser) took 6872.52ms. Allocated memory was 104.9MB in the beginning and 216.0MB in the end (delta: 111.1MB). Free memory was 67.0MB in the beginning and 152.0MB in the end (delta: -85.0MB). Peak memory consumption was 126.6MB. Max. memory is 16.1GB. [2022-07-12 11:17:35,224 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 104.9MB. Free memory was 61.6MB in the beginning and 61.6MB in the end (delta: 47.3kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-12 11:17:35,224 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1557.49ms. Allocated memory was 104.9MB in the beginning and 125.8MB in the end (delta: 21.0MB). Free memory was 67.0MB in the beginning and 72.2MB in the end (delta: -5.1MB). Peak memory consumption was 69.3MB. Max. memory is 16.1GB. [2022-07-12 11:17:35,224 INFO L158 Benchmark]: Boogie Procedure Inliner took 164.60ms. Allocated memory is still 125.8MB. Free memory was 72.2MB in the beginning and 63.1MB in the end (delta: 9.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-07-12 11:17:35,224 INFO L158 Benchmark]: Boogie Preprocessor took 73.11ms. Allocated memory is still 125.8MB. Free memory was 63.1MB in the beginning and 58.9MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-07-12 11:17:35,224 INFO L158 Benchmark]: RCFGBuilder took 579.28ms. Allocated memory was 125.8MB in the beginning and 169.9MB in the end (delta: 44.0MB). Free memory was 58.9MB in the beginning and 104.3MB in the end (delta: -45.4MB). Peak memory consumption was 21.7MB. Max. memory is 16.1GB. [2022-07-12 11:17:35,225 INFO L158 Benchmark]: TraceAbstraction took 4367.02ms. Allocated memory was 169.9MB in the beginning and 216.0MB in the end (delta: 46.1MB). Free memory was 103.2MB in the beginning and 59.2MB in the end (delta: 44.0MB). Peak memory consumption was 90.1MB. Max. memory is 16.1GB. [2022-07-12 11:17:35,225 INFO L158 Benchmark]: Witness Printer took 126.64ms. Allocated memory is still 216.0MB. Free memory was 58.1MB in the beginning and 152.0MB in the end (delta: -93.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-07-12 11:17:35,226 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 104.9MB. Free memory was 61.6MB in the beginning and 61.6MB in the end (delta: 47.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1557.49ms. Allocated memory was 104.9MB in the beginning and 125.8MB in the end (delta: 21.0MB). Free memory was 67.0MB in the beginning and 72.2MB in the end (delta: -5.1MB). Peak memory consumption was 69.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 164.60ms. Allocated memory is still 125.8MB. Free memory was 72.2MB in the beginning and 63.1MB in the end (delta: 9.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 73.11ms. Allocated memory is still 125.8MB. Free memory was 63.1MB in the beginning and 58.9MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 579.28ms. Allocated memory was 125.8MB in the beginning and 169.9MB in the end (delta: 44.0MB). Free memory was 58.9MB in the beginning and 104.3MB in the end (delta: -45.4MB). Peak memory consumption was 21.7MB. Max. memory is 16.1GB. * TraceAbstraction took 4367.02ms. Allocated memory was 169.9MB in the beginning and 216.0MB in the end (delta: 46.1MB). Free memory was 103.2MB in the beginning and 59.2MB in the end (delta: 44.0MB). Peak memory consumption was 90.1MB. Max. memory is 16.1GB. * Witness Printer took 126.64ms. Allocated memory is still 216.0MB. Free memory was 58.1MB in the beginning and 152.0MB in the end (delta: -93.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s 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 - StatisticsResult: Ultimate Automizer benchmark data CFG has 10 procedures, 98 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 4.3s, OverallIterations: 5, TraceHistogramMax: 6, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 187 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 169 mSDsluCounter, 1937 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1455 mSDsCounter, 93 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 731 IncrementalHoareTripleChecker+Invalid, 824 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 93 mSolverCounterUnsat, 482 mSDtfsCounter, 731 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 409 GetRequests, 342 SyntacticMatches, 0 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 271 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=98occurred in iteration=0, InterpolantAutomatonStates: 37, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 37 LocationsWithAnnotation, 105 PreInvPairs, 128 NumberOfFragments, 375 HoareAnnotationTreeSize, 105 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 37 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 1.9s InterpolantComputationTime, 481 NumberOfCodeBlocks, 481 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 572 ConstructedInterpolants, 0 QuantifiedInterpolants, 1391 SizeOfPredicates, 12 NumberOfNonLiveVariables, 1749 ConjunctsInSsa, 42 ConjunctsInUnsatCore, 8 InterpolantComputations, 4 PerfectInterpolantSequences, 262/300 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 1 specifications checked. All of them hold - InvariantResult [Line: 8924]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 6263]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 8059]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 7605]: Loop Invariant Derived loop invariant: (str == 0 && str == 0) || (((!(str == 0) && !(str == 0)) && 0 == c_str) && c_str == 0) - InvariantResult [Line: 6807]: Loop Invariant Derived loop invariant: ((!(str == 0) && (\old(max_size) == max_size || -16 + max_size == 0)) && !(\result == 0)) && !(\old(max_size) == 16) - InvariantResult [Line: 6819]: Loop Invariant Derived loop invariant: str == 0 && str == 0 RESULT: Ultimate proved your program to be correct! [2022-07-12 11:17:35,253 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