./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_array_eq_c_str_ignore_case_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 791161d1 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_array_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 4c8151fb171c9b453710acc6c97ec40a00d3609946ad41877389a6ccf870db18 --- Real Ultimate output --- This is Ultimate 0.2.2-?-791161d [2022-07-22 22:03:30,474 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-22 22:03:30,505 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-22 22:03:30,528 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-22 22:03:30,528 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-22 22:03:30,529 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-22 22:03:30,530 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-22 22:03:30,532 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-22 22:03:30,534 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-22 22:03:30,534 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-22 22:03:30,535 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-22 22:03:30,536 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-22 22:03:30,537 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-22 22:03:30,537 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-22 22:03:30,538 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-22 22:03:30,539 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-22 22:03:30,540 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-22 22:03:30,540 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-22 22:03:30,544 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-22 22:03:30,548 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-22 22:03:30,551 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-22 22:03:30,552 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-22 22:03:30,553 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-22 22:03:30,555 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-22 22:03:30,555 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-22 22:03:30,558 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-22 22:03:30,562 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-22 22:03:30,563 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-22 22:03:30,564 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-22 22:03:30,565 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-22 22:03:30,566 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-22 22:03:30,567 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-22 22:03:30,568 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-22 22:03:30,569 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-22 22:03:30,570 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-22 22:03:30,571 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-22 22:03:30,571 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-22 22:03:30,572 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-22 22:03:30,572 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-22 22:03:30,572 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-22 22:03:30,573 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-22 22:03:30,574 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-22 22:03:30,576 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-22 22:03:30,594 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-22 22:03:30,597 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-22 22:03:30,597 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-22 22:03:30,597 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-22 22:03:30,598 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-22 22:03:30,598 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-22 22:03:30,599 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-22 22:03:30,599 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-22 22:03:30,599 INFO L138 SettingsManager]: * Use SBE=true [2022-07-22 22:03:30,600 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-22 22:03:30,600 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-22 22:03:30,600 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-22 22:03:30,601 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-22 22:03:30,601 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-22 22:03:30,601 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-22 22:03:30,601 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-22 22:03:30,601 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-22 22:03:30,601 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-22 22:03:30,602 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-22 22:03:30,602 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-22 22:03:30,602 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-22 22:03:30,602 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-22 22:03:30,603 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-22 22:03:30,603 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-22 22:03:30,603 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-22 22:03:30,603 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-22 22:03:30,603 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-22 22:03:30,604 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-22 22:03:30,604 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-22 22:03:30,604 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-22 22:03:30,604 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4c8151fb171c9b453710acc6c97ec40a00d3609946ad41877389a6ccf870db18 [2022-07-22 22:03:30,810 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-22 22:03:30,829 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-22 22:03:30,832 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-22 22:03:30,833 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-22 22:03:30,833 INFO L275 PluginConnector]: CDTParser initialized [2022-07-22 22:03:30,835 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_array_eq_c_str_ignore_case_harness.i [2022-07-22 22:03:30,892 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e7d2f258e/d166b9ccd5e7437eb97c90f80aceaac9/FLAGaa72c36fe [2022-07-22 22:03:31,638 INFO L306 CDTParser]: Found 1 translation units. [2022-07-22 22:03:31,639 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_eq_c_str_ignore_case_harness.i [2022-07-22 22:03:31,666 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e7d2f258e/d166b9ccd5e7437eb97c90f80aceaac9/FLAGaa72c36fe [2022-07-22 22:03:31,750 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e7d2f258e/d166b9ccd5e7437eb97c90f80aceaac9 [2022-07-22 22:03:31,752 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-22 22:03:31,754 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-22 22:03:31,756 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-22 22:03:31,756 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-22 22:03:31,758 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-22 22:03:31,759 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 10:03:31" (1/1) ... [2022-07-22 22:03:31,760 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@79e93cea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 10:03:31, skipping insertion in model container [2022-07-22 22:03:31,760 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 10:03:31" (1/1) ... [2022-07-22 22:03:31,765 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-22 22:03:31,838 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-22 22:03:32,082 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_array_eq_c_str_ignore_case_harness.i[4504,4517] [2022-07-22 22:03:32,087 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_array_eq_c_str_ignore_case_harness.i[4564,4577] [2022-07-22 22:03:32,596 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:03:32,597 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:03:32,597 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:03:32,598 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:03:32,598 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:03:32,606 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:03:32,607 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:03:32,608 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:03:32,608 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:03:32,814 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-07-22 22:03:32,815 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-07-22 22:03:32,816 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-07-22 22:03:32,816 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-07-22 22:03:32,817 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-07-22 22:03:32,818 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-07-22 22:03:32,818 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-07-22 22:03:32,819 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-07-22 22:03:32,819 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-07-22 22:03:32,820 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-07-22 22:03:32,899 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-07-22 22:03:33,004 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:03:33,008 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:03:33,079 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 22:03:33,123 INFO L203 MainTranslator]: Completed pre-run [2022-07-22 22:03:33,141 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_array_eq_c_str_ignore_case_harness.i[4504,4517] [2022-07-22 22:03:33,142 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_array_eq_c_str_ignore_case_harness.i[4564,4577] [2022-07-22 22:03:33,176 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:03:33,177 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:03:33,178 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:03:33,178 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:03:33,179 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:03:33,188 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:03:33,189 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:03:33,190 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:03:33,190 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:03:33,230 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-07-22 22:03:33,231 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-07-22 22:03:33,232 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-07-22 22:03:33,232 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-07-22 22:03:33,236 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-07-22 22:03:33,236 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-07-22 22:03:33,236 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-07-22 22:03:33,237 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-07-22 22:03:33,237 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-07-22 22:03:33,237 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-07-22 22:03:33,263 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-07-22 22:03:33,303 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:03:33,304 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:03:33,325 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 22:03:33,603 INFO L208 MainTranslator]: Completed translation [2022-07-22 22:03:33,619 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 10:03:33 WrapperNode [2022-07-22 22:03:33,619 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-22 22:03:33,620 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-22 22:03:33,621 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-22 22:03:33,621 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-22 22:03:33,626 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 10:03:33" (1/1) ... [2022-07-22 22:03:33,712 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 10:03:33" (1/1) ... [2022-07-22 22:03:33,758 INFO L137 Inliner]: procedures = 691, calls = 2614, calls flagged for inlining = 59, calls inlined = 5, statements flattened = 789 [2022-07-22 22:03:33,759 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-22 22:03:33,760 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-22 22:03:33,760 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-22 22:03:33,760 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-22 22:03:33,766 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 10:03:33" (1/1) ... [2022-07-22 22:03:33,767 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 10:03:33" (1/1) ... [2022-07-22 22:03:33,772 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 10:03:33" (1/1) ... [2022-07-22 22:03:33,772 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 10:03:33" (1/1) ... [2022-07-22 22:03:33,790 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 10:03:33" (1/1) ... [2022-07-22 22:03:33,793 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 10:03:33" (1/1) ... [2022-07-22 22:03:33,797 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 10:03:33" (1/1) ... [2022-07-22 22:03:33,803 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-22 22:03:33,804 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-22 22:03:33,804 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-22 22:03:33,804 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-22 22:03:33,805 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 10:03:33" (1/1) ... [2022-07-22 22:03:33,833 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-22 22:03:33,843 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 22:03:33,872 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) [2022-07-22 22:03:33,917 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 [2022-07-22 22:03:33,934 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-22 22:03:33,935 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2022-07-22 22:03:33,935 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2022-07-22 22:03:33,935 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-22 22:03:33,935 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-07-22 22:03:33,935 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-07-22 22:03:33,935 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-22 22:03:33,936 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-22 22:03:33,936 INFO L130 BoogieDeclarations]: Found specification of procedure save_byte_from_array [2022-07-22 22:03:33,936 INFO L138 BoogieDeclarations]: Found implementation of procedure save_byte_from_array [2022-07-22 22:03:33,937 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-22 22:03:33,937 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-22 22:03:33,937 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2022-07-22 22:03:33,938 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2022-07-22 22:03:33,938 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2022-07-22 22:03:33,938 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2022-07-22 22:03:33,938 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_malloc [2022-07-22 22:03:33,938 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_malloc [2022-07-22 22:03:33,938 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-07-22 22:03:33,938 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-07-22 22:03:33,938 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-22 22:03:33,938 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-22 22:03:33,938 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2022-07-22 22:03:33,939 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2022-07-22 22:03:33,939 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-22 22:03:33,939 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_eq_c_str_ignore_case [2022-07-22 22:03:33,939 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_eq_c_str_ignore_case [2022-07-22 22:03:33,940 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-22 22:03:34,144 INFO L234 CfgBuilder]: Building ICFG [2022-07-22 22:03:34,146 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-22 22:03:34,748 INFO L275 CfgBuilder]: Performing block encoding [2022-07-22 22:03:34,754 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-22 22:03:34,755 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-07-22 22:03:34,756 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 10:03:34 BoogieIcfgContainer [2022-07-22 22:03:34,756 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-22 22:03:34,758 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-22 22:03:34,758 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-22 22:03:34,760 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-22 22:03:34,761 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.07 10:03:31" (1/3) ... [2022-07-22 22:03:34,761 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3106a7ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 10:03:34, skipping insertion in model container [2022-07-22 22:03:34,761 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 10:03:33" (2/3) ... [2022-07-22 22:03:34,762 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3106a7ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 10:03:34, skipping insertion in model container [2022-07-22 22:03:34,762 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 10:03:34" (3/3) ... [2022-07-22 22:03:34,762 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_array_eq_c_str_ignore_case_harness.i [2022-07-22 22:03:34,772 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-22 22:03:34,772 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-22 22:03:34,821 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-22 22:03:34,828 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@3f4895e4, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@9e1ed85 [2022-07-22 22:03:34,828 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-22 22:03:34,830 INFO L276 IsEmpty]: Start isEmpty. Operand has 87 states, 54 states have (on average 1.2777777777777777) internal successors, (69), 58 states have internal predecessors, (69), 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) [2022-07-22 22:03:34,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-07-22 22:03:34,838 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 22:03:34,839 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 22:03:34,839 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 22:03:34,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 22:03:34,842 INFO L85 PathProgramCache]: Analyzing trace with hash 1470812839, now seen corresponding path program 1 times [2022-07-22 22:03:34,848 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 22:03:34,848 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [804082144] [2022-07-22 22:03:34,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 22:03:34,849 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 22:03:35,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:03:35,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-22 22:03:35,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:03:35,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-22 22:03:35,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:03:35,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 22:03:35,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:03:35,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-22 22:03:35,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:03:35,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-22 22:03:35,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:03:35,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-07-22 22:03:35,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:03:35,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-22 22:03:35,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:03:35,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-22 22:03:35,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:03:35,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-07-22 22:03:35,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:03:35,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 22:03:35,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:03:35,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 22:03:35,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:03:35,422 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2022-07-22 22:03:35,423 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 22:03:35,423 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [804082144] [2022-07-22 22:03:35,424 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [804082144] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 22:03:35,424 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 22:03:35,424 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-22 22:03:35,425 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1268616688] [2022-07-22 22:03:35,426 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 22:03:35,429 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-22 22:03:35,430 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 22:03:35,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-22 22:03:35,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-22 22:03:35,455 INFO L87 Difference]: Start difference. First operand has 87 states, 54 states have (on average 1.2777777777777777) internal successors, (69), 58 states have internal predecessors, (69), 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 4 states, 4 states have (on average 7.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (12), 4 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-07-22 22:03:35,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 22:03:35,716 INFO L93 Difference]: Finished difference Result 176 states and 247 transitions. [2022-07-22 22:03:35,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-22 22:03:35,719 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (12), 4 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 68 [2022-07-22 22:03:35,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 22:03:35,728 INFO L225 Difference]: With dead ends: 176 [2022-07-22 22:03:35,728 INFO L226 Difference]: Without dead ends: 87 [2022-07-22 22:03:35,732 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-22 22:03:35,738 INFO L413 NwaCegarLoop]: 98 mSDtfsCounter, 82 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 138 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-22 22:03:35,739 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 138 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-22 22:03:35,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2022-07-22 22:03:35,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 82. [2022-07-22 22:03:35,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82 states, 50 states have (on average 1.22) internal successors, (61), 53 states have internal predecessors, (61), 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) [2022-07-22 22:03:35,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 104 transitions. [2022-07-22 22:03:35,785 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 104 transitions. Word has length 68 [2022-07-22 22:03:35,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 22:03:35,786 INFO L495 AbstractCegarLoop]: Abstraction has 82 states and 104 transitions. [2022-07-22 22:03:35,786 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (12), 4 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-07-22 22:03:35,786 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 104 transitions. [2022-07-22 22:03:35,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-07-22 22:03:35,788 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 22:03:35,788 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 22:03:35,789 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-22 22:03:35,789 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 22:03:35,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 22:03:35,789 INFO L85 PathProgramCache]: Analyzing trace with hash -1466791209, now seen corresponding path program 1 times [2022-07-22 22:03:35,790 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 22:03:35,790 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [23436361] [2022-07-22 22:03:35,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 22:03:35,790 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 22:03:35,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:03:35,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-22 22:03:35,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:03:35,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-22 22:03:35,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:03:35,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 22:03:35,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:03:35,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-22 22:03:35,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:03:35,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-22 22:03:35,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:03:36,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-07-22 22:03:36,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:03:36,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-22 22:03:36,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:03:36,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-22 22:03:36,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:03:36,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-07-22 22:03:36,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:03:36,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 22:03:36,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:03:36,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 22:03:36,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:03:36,047 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2022-07-22 22:03:36,048 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 22:03:36,048 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [23436361] [2022-07-22 22:03:36,048 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [23436361] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 22:03:36,048 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 22:03:36,048 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-22 22:03:36,049 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1765173976] [2022-07-22 22:03:36,049 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 22:03:36,050 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-22 22:03:36,050 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 22:03:36,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-22 22:03:36,050 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-22 22:03:36,051 INFO L87 Difference]: Start difference. First operand 82 states and 104 transitions. Second operand has 6 states, 6 states have (on average 4.666666666666667) internal successors, (28), 4 states have internal predecessors, (28), 3 states have call successors, (12), 4 states have call predecessors, (12), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2022-07-22 22:03:36,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 22:03:36,377 INFO L93 Difference]: Finished difference Result 146 states and 193 transitions. [2022-07-22 22:03:36,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-22 22:03:36,378 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.666666666666667) internal successors, (28), 4 states have internal predecessors, (28), 3 states have call successors, (12), 4 states have call predecessors, (12), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 68 [2022-07-22 22:03:36,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 22:03:36,380 INFO L225 Difference]: With dead ends: 146 [2022-07-22 22:03:36,380 INFO L226 Difference]: Without dead ends: 101 [2022-07-22 22:03:36,380 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-22 22:03:36,381 INFO L413 NwaCegarLoop]: 97 mSDtfsCounter, 89 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 242 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 174 SdHoareTripleChecker+Invalid, 314 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 242 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-22 22:03:36,381 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 174 Invalid, 314 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 242 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-22 22:03:36,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2022-07-22 22:03:36,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 85. [2022-07-22 22:03:36,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85 states, 52 states have (on average 1.2115384615384615) internal successors, (63), 55 states have internal predecessors, (63), 23 states have call successors, (23), 9 states have call predecessors, (23), 9 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2022-07-22 22:03:36,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 108 transitions. [2022-07-22 22:03:36,391 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 108 transitions. Word has length 68 [2022-07-22 22:03:36,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 22:03:36,391 INFO L495 AbstractCegarLoop]: Abstraction has 85 states and 108 transitions. [2022-07-22 22:03:36,391 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.666666666666667) internal successors, (28), 4 states have internal predecessors, (28), 3 states have call successors, (12), 4 states have call predecessors, (12), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2022-07-22 22:03:36,392 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 108 transitions. [2022-07-22 22:03:36,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-07-22 22:03:36,393 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 22:03:36,393 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 22:03:36,393 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-22 22:03:36,394 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 22:03:36,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 22:03:36,394 INFO L85 PathProgramCache]: Analyzing trace with hash 982808921, now seen corresponding path program 1 times [2022-07-22 22:03:36,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 22:03:36,394 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1066475484] [2022-07-22 22:03:36,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 22:03:36,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 22:03:36,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:03:36,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-22 22:03:36,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:03:36,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-22 22:03:36,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:03:36,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 22:03:36,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:03:36,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-22 22:03:36,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:03:36,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-22 22:03:36,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:03:36,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-07-22 22:03:36,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:03:36,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-22 22:03:36,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:03:36,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-22 22:03:36,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:03:36,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-07-22 22:03:36,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:03:36,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 22:03:36,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:03:36,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 22:03:36,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:03:36,748 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2022-07-22 22:03:36,749 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 22:03:36,749 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1066475484] [2022-07-22 22:03:36,749 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1066475484] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 22:03:36,749 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [441594103] [2022-07-22 22:03:36,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 22:03:36,749 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 22:03:36,750 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 22:03:36,751 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) [2022-07-22 22:03:36,752 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-22 22:03:37,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:03:37,095 INFO L263 TraceCheckSpWp]: Trace formula consists of 2462 conjuncts, 14 conjunts are in the unsatisfiable core [2022-07-22 22:03:37,101 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 22:03:37,210 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-07-22 22:03:37,210 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 22:03:37,210 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [441594103] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 22:03:37,211 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-22 22:03:37,211 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 9 [2022-07-22 22:03:37,211 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1412614561] [2022-07-22 22:03:37,211 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 22:03:37,211 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-22 22:03:37,212 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 22:03:37,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-22 22:03:37,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2022-07-22 22:03:37,212 INFO L87 Difference]: Start difference. First operand 85 states and 108 transitions. Second operand has 5 states, 5 states have (on average 6.8) internal successors, (34), 5 states have internal predecessors, (34), 3 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2022-07-22 22:03:37,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 22:03:37,279 INFO L93 Difference]: Finished difference Result 123 states and 157 transitions. [2022-07-22 22:03:37,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-22 22:03:37,280 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.8) internal successors, (34), 5 states have internal predecessors, (34), 3 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 68 [2022-07-22 22:03:37,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 22:03:37,281 INFO L225 Difference]: With dead ends: 123 [2022-07-22 22:03:37,281 INFO L226 Difference]: Without dead ends: 82 [2022-07-22 22:03:37,282 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-07-22 22:03:37,282 INFO L413 NwaCegarLoop]: 95 mSDtfsCounter, 2 mSDsluCounter, 252 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 347 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-22 22:03:37,283 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 347 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-22 22:03:37,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2022-07-22 22:03:37,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 82. [2022-07-22 22:03:37,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82 states, 50 states have (on average 1.18) internal successors, (59), 53 states have internal predecessors, (59), 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) [2022-07-22 22:03:37,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 102 transitions. [2022-07-22 22:03:37,289 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 102 transitions. Word has length 68 [2022-07-22 22:03:37,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 22:03:37,289 INFO L495 AbstractCegarLoop]: Abstraction has 82 states and 102 transitions. [2022-07-22 22:03:37,290 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.8) internal successors, (34), 5 states have internal predecessors, (34), 3 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2022-07-22 22:03:37,290 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 102 transitions. [2022-07-22 22:03:37,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-07-22 22:03:37,291 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 22:03:37,291 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 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, 1] [2022-07-22 22:03:37,330 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-07-22 22:03:37,508 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 [2022-07-22 22:03:37,509 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 22:03:37,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 22:03:37,509 INFO L85 PathProgramCache]: Analyzing trace with hash -578368298, now seen corresponding path program 1 times [2022-07-22 22:03:37,509 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 22:03:37,510 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1741280363] [2022-07-22 22:03:37,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 22:03:37,510 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 22:03:37,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:03:37,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-22 22:03:37,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:03:38,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-22 22:03:38,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:03:38,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 22:03:38,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:03:38,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-22 22:03:38,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:03:38,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-22 22:03:38,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:03:38,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-07-22 22:03:38,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:03:38,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-07-22 22:03:38,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:03:38,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 22:03:38,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:03:38,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-22 22:03:38,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:03:38,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-22 22:03:38,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:03:38,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-07-22 22:03:38,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:03:38,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-07-22 22:03:38,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:03:38,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-22 22:03:38,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:03:38,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-22 22:03:38,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:03:38,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 22:03:38,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:03:38,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 22:03:38,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:03:38,275 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 15 proven. 9 refuted. 0 times theorem prover too weak. 95 trivial. 0 not checked. [2022-07-22 22:03:38,275 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 22:03:38,276 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1741280363] [2022-07-22 22:03:38,276 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1741280363] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 22:03:38,276 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2104931642] [2022-07-22 22:03:38,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 22:03:38,276 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 22:03:38,276 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 22:03:38,292 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) [2022-07-22 22:03:38,328 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-07-22 22:03:38,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:03:38,658 INFO L263 TraceCheckSpWp]: Trace formula consists of 2540 conjuncts, 81 conjunts are in the unsatisfiable core [2022-07-22 22:03:38,662 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 22:03:39,999 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 12 proven. 68 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-07-22 22:03:40,000 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-22 22:03:41,203 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 21 proven. 3 refuted. 0 times theorem prover too weak. 95 trivial. 0 not checked. [2022-07-22 22:03:41,203 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2104931642] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-22 22:03:41,203 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-22 22:03:41,203 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 28, 15] total 56 [2022-07-22 22:03:41,204 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1010025548] [2022-07-22 22:03:41,204 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-22 22:03:41,205 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 56 states [2022-07-22 22:03:41,205 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 22:03:41,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 56 interpolants. [2022-07-22 22:03:41,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=171, Invalid=2909, Unknown=0, NotChecked=0, Total=3080 [2022-07-22 22:03:41,206 INFO L87 Difference]: Start difference. First operand 82 states and 102 transitions. Second operand has 56 states, 46 states have (on average 2.391304347826087) internal successors, (110), 43 states have internal predecessors, (110), 21 states have call successors, (49), 6 states have call predecessors, (49), 12 states have return successors, (46), 21 states have call predecessors, (46), 20 states have call successors, (46) [2022-07-22 22:03:41,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 22:03:41,208 INFO L93 Difference]: Finished difference Result 82 states and 102 transitions. [2022-07-22 22:03:41,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-22 22:03:41,209 INFO L78 Accepts]: Start accepts. Automaton has has 56 states, 46 states have (on average 2.391304347826087) internal successors, (110), 43 states have internal predecessors, (110), 21 states have call successors, (49), 6 states have call predecessors, (49), 12 states have return successors, (46), 21 states have call predecessors, (46), 20 states have call successors, (46) Word has length 96 [2022-07-22 22:03:41,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 22:03:41,209 INFO L225 Difference]: With dead ends: 82 [2022-07-22 22:03:41,209 INFO L226 Difference]: Without dead ends: 0 [2022-07-22 22:03:41,210 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 242 GetRequests, 185 SyntacticMatches, 3 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 724 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=171, Invalid=2909, Unknown=0, NotChecked=0, Total=3080 [2022-07-22 22:03:41,211 INFO L413 NwaCegarLoop]: 0 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, 0 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 [2022-07-22 22:03:41,211 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 22:03:41,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-07-22 22:03:41,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-07-22 22:03:41,212 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) [2022-07-22 22:03:41,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-07-22 22:03:41,212 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 96 [2022-07-22 22:03:41,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 22:03:41,212 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-22 22:03:41,213 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 56 states, 46 states have (on average 2.391304347826087) internal successors, (110), 43 states have internal predecessors, (110), 21 states have call successors, (49), 6 states have call predecessors, (49), 12 states have return successors, (46), 21 states have call predecessors, (46), 20 states have call successors, (46) [2022-07-22 22:03:41,213 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-07-22 22:03:41,213 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-07-22 22:03:41,215 INFO L805 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-07-22 22:03:41,255 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-07-22 22:03:41,430 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2022-07-22 22:03:41,432 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-07-22 22:03:41,484 INFO L902 garLoopResultBuilder]: At program point can_fail_mallocENTRY(lines 6899 6903) the Hoare annotation is: true [2022-07-22 22:03:41,484 INFO L899 garLoopResultBuilder]: For program point L6900-3(lines 6900 6902) no Hoare annotation was computed. [2022-07-22 22:03:41,484 INFO L902 garLoopResultBuilder]: At program point L6902(line 6902) the Hoare annotation is: true [2022-07-22 22:03:41,484 INFO L899 garLoopResultBuilder]: For program point can_fail_mallocFINAL(lines 6899 6903) no Hoare annotation was computed. [2022-07-22 22:03:41,484 INFO L899 garLoopResultBuilder]: For program point L6900-1(lines 6900 6902) no Hoare annotation was computed. [2022-07-22 22:03:41,485 INFO L899 garLoopResultBuilder]: For program point can_fail_mallocEXIT(lines 6899 6903) no Hoare annotation was computed. [2022-07-22 22:03:41,485 INFO L902 garLoopResultBuilder]: At program point L6900(line 6900) the Hoare annotation is: true [2022-07-22 22:03:41,485 INFO L899 garLoopResultBuilder]: For program point L6902-1(line 6902) no Hoare annotation was computed. [2022-07-22 22:03:41,485 INFO L902 garLoopResultBuilder]: At program point bounded_mallocENTRY(lines 6882 6887) the Hoare annotation is: true [2022-07-22 22:03:41,485 INFO L899 garLoopResultBuilder]: For program point bounded_mallocFINAL(lines 6882 6887) no Hoare annotation was computed. [2022-07-22 22:03:41,485 INFO L899 garLoopResultBuilder]: For program point bounded_mallocEXIT(lines 6882 6887) no Hoare annotation was computed. [2022-07-22 22:03:41,485 INFO L899 garLoopResultBuilder]: For program point L6883-1(lines 6883 6885) no Hoare annotation was computed. [2022-07-22 22:03:41,485 INFO L902 garLoopResultBuilder]: At program point L6883(lines 6883 6885) the Hoare annotation is: true [2022-07-22 22:03:41,486 INFO L899 garLoopResultBuilder]: For program point L7135(lines 7135 7139) no Hoare annotation was computed. [2022-07-22 22:03:41,486 INFO L899 garLoopResultBuilder]: For program point L7137-1(line 7137) no Hoare annotation was computed. [2022-07-22 22:03:41,486 INFO L899 garLoopResultBuilder]: For program point save_byte_from_arrayEXIT(lines 7134 7140) no Hoare annotation was computed. [2022-07-22 22:03:41,486 INFO L902 garLoopResultBuilder]: At program point L7137(line 7137) the Hoare annotation is: true [2022-07-22 22:03:41,486 INFO L899 garLoopResultBuilder]: For program point L7135-2(lines 7134 7140) no Hoare annotation was computed. [2022-07-22 22:03:41,486 INFO L895 garLoopResultBuilder]: At program point L263(line 263) the Hoare annotation is: (and (= |old(#memory_real)| |#memory_real|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|)) [2022-07-22 22:03:41,486 INFO L895 garLoopResultBuilder]: At program point save_byte_from_arrayENTRY(lines 7134 7140) the Hoare annotation is: (and (= |old(#memory_real)| |#memory_real|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|)) [2022-07-22 22:03:41,486 INFO L899 garLoopResultBuilder]: For program point nondet_boolFINAL(line 261) no Hoare annotation was computed. [2022-07-22 22:03:41,487 INFO L899 garLoopResultBuilder]: For program point nondet_boolEXIT(line 261) no Hoare annotation was computed. [2022-07-22 22:03:41,487 INFO L902 garLoopResultBuilder]: At program point nondet_boolENTRY(line 261) the Hoare annotation is: true [2022-07-22 22:03:41,487 INFO L899 garLoopResultBuilder]: For program point aws_array_eq_c_str_ignore_caseEXIT(lines 7731 7764) no Hoare annotation was computed. [2022-07-22 22:03:41,487 INFO L899 garLoopResultBuilder]: For program point L7748-4(lines 7748 7761) no Hoare annotation was computed. [2022-07-22 22:03:41,487 INFO L902 garLoopResultBuilder]: At program point aws_array_eq_c_str_ignore_caseENTRY(lines 7731 7764) the Hoare annotation is: true [2022-07-22 22:03:41,487 INFO L902 garLoopResultBuilder]: At program point L7748-3(lines 7748 7761) the Hoare annotation is: true [2022-07-22 22:03:41,487 INFO L899 garLoopResultBuilder]: For program point L7736(lines 7736 7738) no Hoare annotation was computed. [2022-07-22 22:03:41,487 INFO L902 garLoopResultBuilder]: At program point L7733-1(line 7733) the Hoare annotation is: true [2022-07-22 22:03:41,487 INFO L902 garLoopResultBuilder]: At program point L7733(line 7733) the Hoare annotation is: true [2022-07-22 22:03:41,488 INFO L899 garLoopResultBuilder]: For program point L7756(lines 7756 7760) no Hoare annotation was computed. [2022-07-22 22:03:41,488 INFO L899 garLoopResultBuilder]: For program point L7750(lines 7750 7754) no Hoare annotation was computed. [2022-07-22 22:03:41,488 INFO L899 garLoopResultBuilder]: For program point aws_array_eq_c_str_ignore_caseFINAL(lines 7731 7764) no Hoare annotation was computed. [2022-07-22 22:03:41,488 INFO L899 garLoopResultBuilder]: For program point L7748-2(lines 7748 7761) no Hoare annotation was computed. [2022-07-22 22:03:41,488 INFO L899 garLoopResultBuilder]: For program point L211-2(lines 210 212) no Hoare annotation was computed. [2022-07-22 22:03:41,488 INFO L902 garLoopResultBuilder]: At program point assume_abort_if_notENTRY(lines 210 212) the Hoare annotation is: true [2022-07-22 22:03:41,488 INFO L899 garLoopResultBuilder]: For program point L211(line 211) no Hoare annotation was computed. [2022-07-22 22:03:41,488 INFO L899 garLoopResultBuilder]: For program point assume_abort_if_notEXIT(lines 210 212) no Hoare annotation was computed. [2022-07-22 22:03:41,488 INFO L902 garLoopResultBuilder]: At program point L7130(line 7130) the Hoare annotation is: true [2022-07-22 22:03:41,489 INFO L899 garLoopResultBuilder]: For program point assert_byte_from_buffer_matchesEXIT(lines 7128 7132) no Hoare annotation was computed. [2022-07-22 22:03:41,489 INFO L902 garLoopResultBuilder]: At program point assert_byte_from_buffer_matchesENTRY(lines 7128 7132) the Hoare annotation is: true [2022-07-22 22:03:41,489 INFO L899 garLoopResultBuilder]: For program point L7129-2(lines 7128 7132) no Hoare annotation was computed. [2022-07-22 22:03:41,489 INFO L899 garLoopResultBuilder]: For program point L7129(lines 7129 7131) no Hoare annotation was computed. [2022-07-22 22:03:41,489 INFO L899 garLoopResultBuilder]: For program point L7130-1(line 7130) no Hoare annotation was computed. [2022-07-22 22:03:41,489 INFO L899 garLoopResultBuilder]: For program point nondet_uint64_tEXIT(line 266) no Hoare annotation was computed. [2022-07-22 22:03:41,489 INFO L902 garLoopResultBuilder]: At program point nondet_uint64_tENTRY(line 266) the Hoare annotation is: true [2022-07-22 22:03:41,489 INFO L899 garLoopResultBuilder]: For program point nondet_uint64_tFINAL(line 266) no Hoare annotation was computed. [2022-07-22 22:03:41,489 INFO L899 garLoopResultBuilder]: For program point L8979-1(line 8979) no Hoare annotation was computed. [2022-07-22 22:03:41,490 INFO L899 garLoopResultBuilder]: For program point L8971(line 8971) no Hoare annotation was computed. [2022-07-22 22:03:41,490 INFO L899 garLoopResultBuilder]: For program point L8996(lines 8996 8998) no Hoare annotation was computed. [2022-07-22 22:03:41,490 INFO L895 garLoopResultBuilder]: At program point L6820-1(line 6820) the Hoare annotation is: false [2022-07-22 22:03:41,490 INFO L902 garLoopResultBuilder]: At program point L9000(line 9000) the Hoare annotation is: true [2022-07-22 22:03:41,490 INFO L895 garLoopResultBuilder]: At program point L6820(line 6820) the Hoare annotation is: false [2022-07-22 22:03:41,490 INFO L899 garLoopResultBuilder]: For program point L8967(lines 8967 8999) no Hoare annotation was computed. [2022-07-22 22:03:41,490 INFO L899 garLoopResultBuilder]: For program point L8988(lines 8988 8990) no Hoare annotation was computed. [2022-07-22 22:03:41,490 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-07-22 22:03:41,490 INFO L899 garLoopResultBuilder]: For program point L8988-1(lines 8967 8999) no Hoare annotation was computed. [2022-07-22 22:03:41,491 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-07-22 22:03:41,491 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-07-22 22:03:41,491 INFO L895 garLoopResultBuilder]: At program point L8984(line 8984) the Hoare annotation is: (and (= |ULTIMATE.start_aws_array_eq_c_str_ignore_case_harness_~c_str~0#1.base| 0) (= |ULTIMATE.start_aws_array_eq_c_str_ignore_case_harness_~c_str~0#1.offset| 0)) [2022-07-22 22:03:41,491 INFO L895 garLoopResultBuilder]: At program point L8972(line 8972) the Hoare annotation is: false [2022-07-22 22:03:41,491 INFO L899 garLoopResultBuilder]: For program point L8972-1(lines 8972 8974) no Hoare annotation was computed. [2022-07-22 22:03:41,491 INFO L895 garLoopResultBuilder]: At program point L8997(line 8997) the Hoare annotation is: false [2022-07-22 22:03:41,491 INFO L899 garLoopResultBuilder]: For program point L6825-1(line 6825) no Hoare annotation was computed. [2022-07-22 22:03:41,491 INFO L895 garLoopResultBuilder]: At program point L6825(line 6825) the Hoare annotation is: false [2022-07-22 22:03:41,492 INFO L899 garLoopResultBuilder]: For program point L8972-3(lines 8972 8974) no Hoare annotation was computed. [2022-07-22 22:03:41,492 INFO L899 garLoopResultBuilder]: For program point L6821(line 6821) no Hoare annotation was computed. [2022-07-22 22:03:41,492 INFO L895 garLoopResultBuilder]: At program point L8989(line 8989) the Hoare annotation is: false [2022-07-22 22:03:41,492 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-07-22 22:03:41,492 INFO L899 garLoopResultBuilder]: For program point L8993(lines 8967 8999) no Hoare annotation was computed. [2022-07-22 22:03:41,492 INFO L895 garLoopResultBuilder]: At program point L8981(line 8981) the Hoare annotation is: (and (= |ULTIMATE.start_aws_array_eq_c_str_ignore_case_harness_~c_str~0#1.base| 0) (= |ULTIMATE.start_aws_array_eq_c_str_ignore_case_harness_~c_str~0#1.offset| 0)) [2022-07-22 22:03:41,492 INFO L895 garLoopResultBuilder]: At program point L8981-1(line 8981) the Hoare annotation is: (and (= |ULTIMATE.start_aws_array_eq_c_str_ignore_case_harness_~c_str~0#1.base| 0) (= |ULTIMATE.start_aws_array_eq_c_str_ignore_case_harness_~c_str~0#1.offset| 0)) [2022-07-22 22:03:41,492 INFO L895 garLoopResultBuilder]: At program point L8985(line 8985) the Hoare annotation is: false [2022-07-22 22:03:41,492 INFO L895 garLoopResultBuilder]: At program point L6826(lines 6818 6827) the Hoare annotation is: false [2022-07-22 22:03:41,493 INFO L895 garLoopResultBuilder]: At program point L8994(line 8994) the Hoare annotation is: false [2022-07-22 22:03:41,493 INFO L895 garLoopResultBuilder]: At program point L8978(line 8978) the Hoare annotation is: (and (= |ULTIMATE.start_aws_array_eq_c_str_ignore_case_harness_~c_str~0#1.base| 0) (= |ULTIMATE.start_aws_array_eq_c_str_ignore_case_harness_~c_str~0#1.offset| 0)) [2022-07-22 22:03:41,493 INFO L895 garLoopResultBuilder]: At program point L8970(line 8970) the Hoare annotation is: false [2022-07-22 22:03:41,493 INFO L899 garLoopResultBuilder]: For program point L8978-1(lines 8967 8999) no Hoare annotation was computed. [2022-07-22 22:03:41,493 INFO L895 garLoopResultBuilder]: At program point L8970-1(line 8970) the Hoare annotation is: false [2022-07-22 22:03:41,493 INFO L899 garLoopResultBuilder]: For program point L6819-1(line 6819) no Hoare annotation was computed. [2022-07-22 22:03:41,493 INFO L895 garLoopResultBuilder]: At program point L6819(line 6819) the Hoare annotation is: false [2022-07-22 22:03:41,493 INFO L899 garLoopResultBuilder]: For program point L223(line 223) no Hoare annotation was computed. [2022-07-22 22:03:41,494 INFO L902 garLoopResultBuilder]: At program point __VERIFIER_assertENTRY(lines 222 224) the Hoare annotation is: true [2022-07-22 22:03:41,494 INFO L899 garLoopResultBuilder]: For program point L223-1(line 223) no Hoare annotation was computed. [2022-07-22 22:03:41,494 INFO L899 garLoopResultBuilder]: For program point L223-3(lines 222 224) no Hoare annotation was computed. [2022-07-22 22:03:41,494 INFO L899 garLoopResultBuilder]: For program point __VERIFIER_assertEXIT(lines 222 224) no Hoare annotation was computed. [2022-07-22 22:03:41,494 INFO L899 garLoopResultBuilder]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 223) no Hoare annotation was computed. [2022-07-22 22:03:41,496 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-07-22 22:03:41,498 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-22 22:03:41,502 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-07-22 22:03:41,503 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-07-22 22:03:41,503 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-07-22 22:03:41,503 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-07-22 22:03:41,506 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-07-22 22:03:41,507 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-07-22 22:03:41,507 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-07-22 22:03:41,507 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-07-22 22:03:41,508 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.07 10:03:41 BoogieIcfgContainer [2022-07-22 22:03:41,508 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-22 22:03:41,509 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-22 22:03:41,509 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-22 22:03:41,509 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-22 22:03:41,509 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 10:03:34" (3/4) ... [2022-07-22 22:03:41,524 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-07-22 22:03:41,529 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure can_fail_malloc [2022-07-22 22:03:41,529 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure bounded_malloc [2022-07-22 22:03:41,529 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure save_byte_from_array [2022-07-22 22:03:41,529 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure nondet_uint64_t [2022-07-22 22:03:41,529 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure nondet_bool [2022-07-22 22:03:41,529 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure aws_array_eq_c_str_ignore_case [2022-07-22 22:03:41,529 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2022-07-22 22:03:41,530 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2022-07-22 22:03:41,530 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure assert_byte_from_buffer_matches [2022-07-22 22:03:41,537 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 124 nodes and edges [2022-07-22 22:03:41,548 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 58 nodes and edges [2022-07-22 22:03:41,549 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 27 nodes and edges [2022-07-22 22:03:41,549 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2022-07-22 22:03:41,550 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2022-07-22 22:03:41,551 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-07-22 22:03:41,551 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-07-22 22:03:41,552 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-07-22 22:03:41,598 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((\old(unknown-#memory_real-unknown) == unknown-#memory_real-unknown && unknown-#memory_int-unknown == \old(unknown-#memory_int-unknown)) && #memory_$Pointer$ == \old(#memory_$Pointer$)) && #memory_$Pointer$ == \old(#memory_$Pointer$) [2022-07-22 22:03:41,928 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-22 22:03:41,929 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-22 22:03:41,929 INFO L158 Benchmark]: Toolchain (without parser) took 10175.60ms. Allocated memory was 130.0MB in the beginning and 398.5MB in the end (delta: 268.4MB). Free memory was 94.9MB in the beginning and 118.1MB in the end (delta: -23.1MB). Peak memory consumption was 245.5MB. Max. memory is 16.1GB. [2022-07-22 22:03:41,930 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 130.0MB. Free memory was 86.6MB in the beginning and 86.5MB in the end (delta: 64.4kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-22 22:03:41,930 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1864.29ms. Allocated memory was 130.0MB in the beginning and 159.4MB in the end (delta: 29.4MB). Free memory was 94.9MB in the beginning and 90.3MB in the end (delta: 4.6MB). Peak memory consumption was 69.1MB. Max. memory is 16.1GB. [2022-07-22 22:03:41,930 INFO L158 Benchmark]: Boogie Procedure Inliner took 138.71ms. Allocated memory is still 159.4MB. Free memory was 90.3MB in the beginning and 79.5MB in the end (delta: 10.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-07-22 22:03:41,930 INFO L158 Benchmark]: Boogie Preprocessor took 43.56ms. Allocated memory is still 159.4MB. Free memory was 79.5MB in the beginning and 73.2MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-07-22 22:03:41,930 INFO L158 Benchmark]: RCFGBuilder took 952.77ms. Allocated memory was 159.4MB in the beginning and 216.0MB in the end (delta: 56.6MB). Free memory was 73.2MB in the beginning and 117.1MB in the end (delta: -43.9MB). Peak memory consumption was 43.1MB. Max. memory is 16.1GB. [2022-07-22 22:03:41,931 INFO L158 Benchmark]: TraceAbstraction took 6749.92ms. Allocated memory was 216.0MB in the beginning and 398.5MB in the end (delta: 182.5MB). Free memory was 117.1MB in the beginning and 248.1MB in the end (delta: -131.0MB). Peak memory consumption was 51.5MB. Max. memory is 16.1GB. [2022-07-22 22:03:41,931 INFO L158 Benchmark]: Witness Printer took 420.23ms. Allocated memory is still 398.5MB. Free memory was 248.1MB in the beginning and 118.1MB in the end (delta: 130.0MB). Peak memory consumption was 130.0MB. Max. memory is 16.1GB. [2022-07-22 22:03:41,932 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 130.0MB. Free memory was 86.6MB in the beginning and 86.5MB in the end (delta: 64.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1864.29ms. Allocated memory was 130.0MB in the beginning and 159.4MB in the end (delta: 29.4MB). Free memory was 94.9MB in the beginning and 90.3MB in the end (delta: 4.6MB). Peak memory consumption was 69.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 138.71ms. Allocated memory is still 159.4MB. Free memory was 90.3MB in the beginning and 79.5MB in the end (delta: 10.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Preprocessor took 43.56ms. Allocated memory is still 159.4MB. Free memory was 79.5MB in the beginning and 73.2MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * RCFGBuilder took 952.77ms. Allocated memory was 159.4MB in the beginning and 216.0MB in the end (delta: 56.6MB). Free memory was 73.2MB in the beginning and 117.1MB in the end (delta: -43.9MB). Peak memory consumption was 43.1MB. Max. memory is 16.1GB. * TraceAbstraction took 6749.92ms. Allocated memory was 216.0MB in the beginning and 398.5MB in the end (delta: 182.5MB). Free memory was 117.1MB in the beginning and 248.1MB in the end (delta: -131.0MB). Peak memory consumption was 51.5MB. Max. memory is 16.1GB. * Witness Printer took 420.23ms. Allocated memory is still 398.5MB. Free memory was 248.1MB in the beginning and 118.1MB in the end (delta: 130.0MB). Peak memory consumption was 130.0MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset * 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, 87 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 6.7s, OverallIterations: 4, TraceHistogramMax: 8, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 181 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 173 mSDsluCounter, 659 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 369 mSDsCounter, 129 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 372 IncrementalHoareTripleChecker+Invalid, 501 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 129 mSolverCounterUnsat, 290 mSDtfsCounter, 372 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 398 GetRequests, 325 SyntacticMatches, 3 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 724 ImplicationChecksByTransitivity, 1.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=87occurred in iteration=0, InterpolantAutomatonStates: 19, 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, 4 MinimizatonAttempts, 21 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 35 LocationsWithAnnotation, 124 PreInvPairs, 129 NumberOfFragments, 83 HoareAnnotationTreeSize, 124 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 35 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 4.0s InterpolantComputationTime, 464 NumberOfCodeBlocks, 464 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 553 ConstructedInterpolants, 0 QuantifiedInterpolants, 2311 SizeOfPredicates, 38 NumberOfNonLiveVariables, 5002 ConjunctsInSsa, 95 ConjunctsInUnsatCore, 7 InterpolantComputations, 3 PerfectInterpolantSequences, 459/545 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: 263]: Loop Invariant [2022-07-22 22:03:41,938 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-07-22 22:03:41,938 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-07-22 22:03:41,938 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-07-22 22:03:41,938 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-07-22 22:03:41,939 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-07-22 22:03:41,939 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-07-22 22:03:41,939 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-07-22 22:03:41,939 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset Derived loop invariant: ((\old(unknown-#memory_real-unknown) == unknown-#memory_real-unknown && unknown-#memory_int-unknown == \old(unknown-#memory_int-unknown)) && #memory_$Pointer$ == \old(#memory_$Pointer$)) && #memory_$Pointer$ == \old(#memory_$Pointer$) - InvariantResult [Line: 9000]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 7748]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 6818]: Loop Invariant Derived loop invariant: 0 RESULT: Ultimate proved your program to be correct! [2022-07-22 22:03:41,963 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