./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_byte_buf_eq_ignore_case_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3a877d22 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_byte_buf_eq_ignore_case_harness.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 82914be9df39aade96902f979c145aa97bb18d611f7f0e9a90ee0ab6b53af5a2 --- Real Ultimate output --- This is Ultimate 0.2.2-3a877d227dc491413fd706022d0c47cd97beb353-3a877d2 [2021-12-15 12:30:31,614 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-15 12:30:31,616 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-15 12:30:31,687 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-15 12:30:31,688 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-15 12:30:31,689 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-15 12:30:31,693 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-15 12:30:31,698 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-15 12:30:31,701 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-15 12:30:31,703 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-15 12:30:31,704 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-15 12:30:31,706 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-15 12:30:31,706 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-15 12:30:31,711 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-15 12:30:31,713 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-15 12:30:31,715 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-15 12:30:31,716 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-15 12:30:31,717 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-15 12:30:31,718 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-15 12:30:31,723 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-15 12:30:31,727 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-15 12:30:31,728 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-15 12:30:31,729 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-15 12:30:31,731 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-15 12:30:31,733 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-15 12:30:31,734 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-15 12:30:31,734 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-15 12:30:31,736 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-15 12:30:31,736 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-15 12:30:31,737 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-15 12:30:31,737 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-15 12:30:31,738 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-15 12:30:31,739 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-15 12:30:31,741 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-15 12:30:31,742 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-15 12:30:31,742 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-15 12:30:31,742 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-15 12:30:31,743 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-15 12:30:31,743 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-15 12:30:31,744 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-15 12:30:31,744 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-15 12:30:31,745 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-15 12:30:31,783 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-15 12:30:31,785 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-15 12:30:31,786 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-15 12:30:31,786 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-15 12:30:31,787 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-15 12:30:31,787 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-15 12:30:31,788 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-15 12:30:31,788 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-15 12:30:31,788 INFO L138 SettingsManager]: * Use SBE=true [2021-12-15 12:30:31,788 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-15 12:30:31,789 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-15 12:30:31,790 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-15 12:30:31,790 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-15 12:30:31,790 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-15 12:30:31,790 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-15 12:30:31,790 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-15 12:30:31,791 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-15 12:30:31,791 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-15 12:30:31,791 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-15 12:30:31,791 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-15 12:30:31,791 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-15 12:30:31,792 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 12:30:31,792 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-15 12:30:31,792 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-15 12:30:31,792 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-15 12:30:31,792 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-15 12:30:31,793 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-15 12:30:31,793 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-15 12:30:31,793 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-15 12:30:31,793 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-15 12:30:31,793 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-15 12:30:31,794 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 82914be9df39aade96902f979c145aa97bb18d611f7f0e9a90ee0ab6b53af5a2 [2021-12-15 12:30:32,045 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-15 12:30:32,070 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-15 12:30:32,074 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-15 12:30:32,075 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-15 12:30:32,075 INFO L275 PluginConnector]: CDTParser initialized [2021-12-15 12:30:32,076 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_byte_buf_eq_ignore_case_harness.i [2021-12-15 12:30:32,134 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/78a2b5e34/e8f71ca10b87480d85b439893f41e88f/FLAGe99d2c97c [2021-12-15 12:30:32,815 INFO L306 CDTParser]: Found 1 translation units. [2021-12-15 12:30:32,816 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_byte_buf_eq_ignore_case_harness.i [2021-12-15 12:30:32,860 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/78a2b5e34/e8f71ca10b87480d85b439893f41e88f/FLAGe99d2c97c [2021-12-15 12:30:32,944 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/78a2b5e34/e8f71ca10b87480d85b439893f41e88f [2021-12-15 12:30:32,948 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-15 12:30:32,950 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-15 12:30:32,951 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-15 12:30:32,951 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-15 12:30:32,954 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-15 12:30:32,955 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 12:30:32" (1/1) ... [2021-12-15 12:30:32,956 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@428058b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:30:32, skipping insertion in model container [2021-12-15 12:30:32,956 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 12:30:32" (1/1) ... [2021-12-15 12:30:32,962 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-15 12:30:33,055 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 12:30:33,271 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_byte_buf_eq_ignore_case_harness.i[4501,4514] [2021-12-15 12:30:33,282 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_byte_buf_eq_ignore_case_harness.i[4561,4574] [2021-12-15 12:30:33,911 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:30:33,912 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:30:33,913 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:30:33,913 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:30:33,914 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:30:33,924 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:30:33,925 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:30:33,926 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:30:33,927 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:30:34,172 WARN L610 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-12-15 12:30:34,173 WARN L610 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-12-15 12:30:34,174 WARN L610 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-12-15 12:30:34,175 WARN L610 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-12-15 12:30:34,176 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-12-15 12:30:34,177 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-12-15 12:30:34,177 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-12-15 12:30:34,178 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-12-15 12:30:34,178 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-12-15 12:30:34,179 WARN L610 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-12-15 12:30:34,277 WARN L610 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-12-15 12:30:34,353 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:30:34,353 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:30:34,439 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 12:30:34,490 INFO L203 MainTranslator]: Completed pre-run [2021-12-15 12:30:34,511 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_byte_buf_eq_ignore_case_harness.i[4501,4514] [2021-12-15 12:30:34,513 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_byte_buf_eq_ignore_case_harness.i[4561,4574] [2021-12-15 12:30:34,554 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:30:34,555 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:30:34,555 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:30:34,561 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:30:34,562 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:30:34,572 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:30:34,573 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:30:34,576 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:30:34,576 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:30:34,616 WARN L610 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-12-15 12:30:34,617 WARN L610 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-12-15 12:30:34,617 WARN L610 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-12-15 12:30:34,618 WARN L610 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-12-15 12:30:34,618 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-12-15 12:30:34,619 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-12-15 12:30:34,619 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-12-15 12:30:34,619 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-12-15 12:30:34,620 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-12-15 12:30:34,620 WARN L610 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-12-15 12:30:34,642 WARN L610 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-12-15 12:30:34,699 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:30:34,699 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:30:34,754 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 12:30:34,913 INFO L208 MainTranslator]: Completed translation [2021-12-15 12:30:34,913 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:30:34 WrapperNode [2021-12-15 12:30:34,913 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-15 12:30:34,914 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-15 12:30:34,914 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-15 12:30:34,915 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-15 12:30:34,920 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:30:34" (1/1) ... [2021-12-15 12:30:35,032 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:30:34" (1/1) ... [2021-12-15 12:30:35,110 INFO L137 Inliner]: procedures = 691, calls = 2661, calls flagged for inlining = 59, calls inlined = 5, statements flattened = 862 [2021-12-15 12:30:35,110 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-15 12:30:35,111 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-15 12:30:35,111 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-15 12:30:35,111 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-15 12:30:35,119 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:30:34" (1/1) ... [2021-12-15 12:30:35,119 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:30:34" (1/1) ... [2021-12-15 12:30:35,145 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:30:34" (1/1) ... [2021-12-15 12:30:35,146 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:30:34" (1/1) ... [2021-12-15 12:30:35,193 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:30:34" (1/1) ... [2021-12-15 12:30:35,207 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:30:34" (1/1) ... [2021-12-15 12:30:35,214 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:30:34" (1/1) ... [2021-12-15 12:30:35,226 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-15 12:30:35,227 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-15 12:30:35,227 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-15 12:30:35,228 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-15 12:30:35,237 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:30:34" (1/1) ... [2021-12-15 12:30:35,243 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 12:30:35,252 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 12:30:35,268 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-15 12:30:35,288 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-15 12:30:35,302 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_is_valid [2021-12-15 12:30:35,302 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_is_valid [2021-12-15 12:30:35,302 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_eq_ignore_case [2021-12-15 12:30:35,302 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_eq_ignore_case [2021-12-15 12:30:35,303 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-15 12:30:35,303 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2021-12-15 12:30:35,303 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2021-12-15 12:30:35,303 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-15 12:30:35,304 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-12-15 12:30:35,304 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-12-15 12:30:35,304 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-15 12:30:35,305 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-15 12:30:35,305 INFO L130 BoogieDeclarations]: Found specification of procedure save_byte_from_array [2021-12-15 12:30:35,306 INFO L138 BoogieDeclarations]: Found implementation of procedure save_byte_from_array [2021-12-15 12:30:35,306 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-15 12:30:35,306 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_byte_buf_has_allocated_buffer_member [2021-12-15 12:30:35,306 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_byte_buf_has_allocated_buffer_member [2021-12-15 12:30:35,306 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-15 12:30:35,307 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-15 12:30:35,307 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2021-12-15 12:30:35,307 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2021-12-15 12:30:35,307 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2021-12-15 12:30:35,307 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2021-12-15 12:30:35,307 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-15 12:30:35,308 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-15 12:30:35,308 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-15 12:30:35,308 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-15 12:30:35,309 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-15 12:30:35,309 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2021-12-15 12:30:35,309 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2021-12-15 12:30:35,309 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_is_bounded [2021-12-15 12:30:35,310 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_is_bounded [2021-12-15 12:30:35,310 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-15 12:30:35,310 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_buf_equivalence [2021-12-15 12:30:35,310 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_buf_equivalence [2021-12-15 12:30:35,310 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-15 12:30:35,556 INFO L236 CfgBuilder]: Building ICFG [2021-12-15 12:30:35,557 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-15 12:30:36,246 INFO L277 CfgBuilder]: Performing block encoding [2021-12-15 12:30:36,252 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-15 12:30:36,252 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-15 12:30:36,253 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 12:30:36 BoogieIcfgContainer [2021-12-15 12:30:36,253 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-15 12:30:36,255 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-15 12:30:36,255 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-15 12:30:36,263 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-15 12:30:36,263 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.12 12:30:32" (1/3) ... [2021-12-15 12:30:36,264 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3cf9761e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 12:30:36, skipping insertion in model container [2021-12-15 12:30:36,264 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:30:34" (2/3) ... [2021-12-15 12:30:36,264 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3cf9761e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 12:30:36, skipping insertion in model container [2021-12-15 12:30:36,265 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 12:30:36" (3/3) ... [2021-12-15 12:30:36,266 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_byte_buf_eq_ignore_case_harness.i [2021-12-15 12:30:36,270 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-15 12:30:36,270 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-15 12:30:36,326 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-15 12:30:36,340 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-15 12:30:36,343 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-15 12:30:36,366 INFO L276 IsEmpty]: Start isEmpty. Operand has 143 states, 87 states have (on average 1.2413793103448276) internal successors, (108), 88 states have internal predecessors, (108), 42 states have call successors, (42), 12 states have call predecessors, (42), 12 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2021-12-15 12:30:36,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-12-15 12:30:36,398 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 12:30:36,399 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 4, 4, 4, 4, 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, 1, 1, 1, 1] [2021-12-15 12:30:36,399 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 12:30:36,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 12:30:36,404 INFO L85 PathProgramCache]: Analyzing trace with hash 1731481966, now seen corresponding path program 1 times [2021-12-15 12:30:36,411 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 12:30:36,412 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1063959724] [2021-12-15 12:30:36,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 12:30:36,413 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 12:30:36,535 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-15 12:30:36,536 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.UnsupportedOperationException: Set is immutable at de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.retainAll(ImmutableSet.java:338) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.UnmodifiableTransFormula.removeSuperfluousVars(UnmodifiableTransFormula.java:212) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaBuilder.finishConstruction(TransFormulaBuilder.java:273) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.OldVarsAssignmentCache.constructGlobalVarsAssignment(OldVarsAssignmentCache.java:155) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.OldVarsAssignmentCache.getGlobalVarsAssignment(OldVarsAssignmentCache.java:93) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.DefaultTransFormulas.getGlobalVarAssignmentFromValidPos(DefaultTransFormulas.java:89) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.DefaultTransFormulas.getGlobalVarAssignmentFromValidPos(DefaultTransFormulas.java:1) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.NestedFormulas.getGlobalVarAssignment(NestedFormulas.java:126) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckUtils.decoupleArrayValues(TraceCheckUtils.java:384) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheck.(InterpolatingTraceCheck.java:87) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.(InterpolatingTraceCheckCraig.java:89) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleCraig.construct(IpTcStrategyModuleCraig.java:79) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleCraig.construct(IpTcStrategyModuleCraig.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:211) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:124) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:88) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:610) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:413) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:393) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:263) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:176) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-12-15 12:30:36,546 INFO L158 Benchmark]: Toolchain (without parser) took 3594.50ms. Allocated memory was 92.3MB in the beginning and 197.1MB in the end (delta: 104.9MB). Free memory was 53.2MB in the beginning and 133.3MB in the end (delta: -80.0MB). Peak memory consumption was 69.6MB. Max. memory is 16.1GB. [2021-12-15 12:30:36,547 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 92.3MB. Free memory was 49.7MB in the beginning and 49.6MB in the end (delta: 39.8kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 12:30:36,551 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1962.47ms. Allocated memory was 92.3MB in the beginning and 155.2MB in the end (delta: 62.9MB). Free memory was 53.2MB in the beginning and 74.8MB in the end (delta: -21.6MB). Peak memory consumption was 57.2MB. Max. memory is 16.1GB. [2021-12-15 12:30:36,553 INFO L158 Benchmark]: Boogie Procedure Inliner took 196.25ms. Allocated memory is still 155.2MB. Free memory was 74.8MB in the beginning and 63.6MB in the end (delta: 11.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-12-15 12:30:36,554 INFO L158 Benchmark]: Boogie Preprocessor took 115.40ms. Allocated memory is still 155.2MB. Free memory was 63.1MB in the beginning and 98.4MB in the end (delta: -35.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-12-15 12:30:36,554 INFO L158 Benchmark]: RCFGBuilder took 1026.31ms. Allocated memory is still 155.2MB. Free memory was 98.4MB in the beginning and 56.1MB in the end (delta: 42.4MB). Peak memory consumption was 48.5MB. Max. memory is 16.1GB. [2021-12-15 12:30:36,554 INFO L158 Benchmark]: TraceAbstraction took 288.56ms. Allocated memory was 155.2MB in the beginning and 197.1MB in the end (delta: 41.9MB). Free memory was 56.1MB in the beginning and 133.3MB in the end (delta: -77.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-15 12:30:36,562 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 92.3MB. Free memory was 49.7MB in the beginning and 49.6MB in the end (delta: 39.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1962.47ms. Allocated memory was 92.3MB in the beginning and 155.2MB in the end (delta: 62.9MB). Free memory was 53.2MB in the beginning and 74.8MB in the end (delta: -21.6MB). Peak memory consumption was 57.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 196.25ms. Allocated memory is still 155.2MB. Free memory was 74.8MB in the beginning and 63.6MB in the end (delta: 11.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Preprocessor took 115.40ms. Allocated memory is still 155.2MB. Free memory was 63.1MB in the beginning and 98.4MB in the end (delta: -35.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 1026.31ms. Allocated memory is still 155.2MB. Free memory was 98.4MB in the beginning and 56.1MB in the end (delta: 42.4MB). Peak memory consumption was 48.5MB. Max. memory is 16.1GB. * TraceAbstraction took 288.56ms. Allocated memory was 155.2MB in the beginning and 197.1MB in the end (delta: 41.9MB). Free memory was 56.1MB in the beginning and 133.3MB in the end (delta: -77.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: UnsupportedOperationException: Set is immutable de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: UnsupportedOperationException: Set is immutable: de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.retainAll(ImmutableSet.java:338) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-12-15 12:30:36,600 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 Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### 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_byte_buf_eq_ignore_case_harness.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.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 82914be9df39aade96902f979c145aa97bb18d611f7f0e9a90ee0ab6b53af5a2 --- Real Ultimate output --- This is Ultimate 0.2.2-3a877d227dc491413fd706022d0c47cd97beb353-3a877d2 [2021-12-15 12:30:38,535 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-15 12:30:38,537 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-15 12:30:38,570 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-15 12:30:38,575 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-15 12:30:38,577 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-15 12:30:38,579 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-15 12:30:38,582 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-15 12:30:38,584 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-15 12:30:38,585 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-15 12:30:38,586 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-15 12:30:38,588 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-15 12:30:38,589 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-15 12:30:38,591 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-15 12:30:38,593 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-15 12:30:38,594 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-15 12:30:38,596 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-15 12:30:38,600 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-15 12:30:38,601 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-15 12:30:38,605 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-15 12:30:38,608 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-15 12:30:38,611 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-15 12:30:38,612 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-15 12:30:38,613 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-15 12:30:38,615 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-15 12:30:38,618 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-15 12:30:38,618 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-15 12:30:38,619 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-15 12:30:38,620 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-15 12:30:38,621 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-15 12:30:38,621 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-15 12:30:38,622 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-15 12:30:38,623 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-15 12:30:38,625 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-15 12:30:38,626 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-15 12:30:38,627 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-15 12:30:38,627 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-15 12:30:38,628 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-15 12:30:38,628 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-15 12:30:38,629 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-15 12:30:38,630 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-15 12:30:38,631 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2021-12-15 12:30:38,659 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-15 12:30:38,659 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-15 12:30:38,660 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-15 12:30:38,660 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-15 12:30:38,661 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-15 12:30:38,661 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-15 12:30:38,662 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-15 12:30:38,663 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-15 12:30:38,663 INFO L138 SettingsManager]: * Use SBE=true [2021-12-15 12:30:38,663 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-15 12:30:38,664 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-15 12:30:38,664 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-15 12:30:38,664 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-15 12:30:38,664 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-15 12:30:38,665 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-12-15 12:30:38,665 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-12-15 12:30:38,665 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-12-15 12:30:38,665 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-15 12:30:38,665 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-15 12:30:38,666 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-15 12:30:38,666 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-15 12:30:38,666 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-15 12:30:38,666 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-15 12:30:38,667 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 12:30:38,667 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-15 12:30:38,677 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-15 12:30:38,678 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-15 12:30:38,678 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-12-15 12:30:38,678 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-12-15 12:30:38,678 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-15 12:30:38,679 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-15 12:30:38,679 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-15 12:30:38,679 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-15 12:30:38,680 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-12-15 12:30:38,680 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 82914be9df39aade96902f979c145aa97bb18d611f7f0e9a90ee0ab6b53af5a2 [2021-12-15 12:30:38,993 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-15 12:30:39,021 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-15 12:30:39,023 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-15 12:30:39,032 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-15 12:30:39,032 INFO L275 PluginConnector]: CDTParser initialized [2021-12-15 12:30:39,034 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_byte_buf_eq_ignore_case_harness.i [2021-12-15 12:30:39,091 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2a6d7b66d/8fe52ef5bcc847739740694f20227387/FLAGb056146df [2021-12-15 12:30:39,907 INFO L306 CDTParser]: Found 1 translation units. [2021-12-15 12:30:39,908 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_byte_buf_eq_ignore_case_harness.i [2021-12-15 12:30:39,944 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2a6d7b66d/8fe52ef5bcc847739740694f20227387/FLAGb056146df [2021-12-15 12:30:40,033 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2a6d7b66d/8fe52ef5bcc847739740694f20227387 [2021-12-15 12:30:40,035 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-15 12:30:40,038 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-15 12:30:40,040 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-15 12:30:40,040 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-15 12:30:40,043 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-15 12:30:40,047 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 12:30:40" (1/1) ... [2021-12-15 12:30:40,048 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1efd2a24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:30:40, skipping insertion in model container [2021-12-15 12:30:40,048 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 12:30:40" (1/1) ... [2021-12-15 12:30:40,054 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-15 12:30:40,170 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 12:30:40,426 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_byte_buf_eq_ignore_case_harness.i[4501,4514] [2021-12-15 12:30:40,432 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_byte_buf_eq_ignore_case_harness.i[4561,4574] [2021-12-15 12:30:41,034 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:30:41,034 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:30:41,035 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:30:41,035 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:30:41,036 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:30:41,046 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:30:41,049 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:30:41,051 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:30:41,052 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:30:41,286 WARN L610 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-12-15 12:30:41,287 WARN L610 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-12-15 12:30:41,288 WARN L610 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-12-15 12:30:41,289 WARN L610 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-12-15 12:30:41,290 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-12-15 12:30:41,290 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-12-15 12:30:41,291 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-12-15 12:30:41,291 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-12-15 12:30:41,292 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-12-15 12:30:41,292 WARN L610 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-12-15 12:30:41,383 WARN L610 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-12-15 12:30:41,502 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:30:41,503 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:30:41,587 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 12:30:41,655 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-12-15 12:30:41,718 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 12:30:41,725 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_byte_buf_eq_ignore_case_harness.i[4501,4514] [2021-12-15 12:30:41,725 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_byte_buf_eq_ignore_case_harness.i[4561,4574] [2021-12-15 12:30:41,787 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:30:41,788 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:30:41,790 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:30:41,795 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:30:41,796 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:30:41,805 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:30:41,807 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:30:41,808 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:30:41,809 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:30:41,846 WARN L610 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-12-15 12:30:41,847 WARN L610 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-12-15 12:30:41,847 WARN L610 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-12-15 12:30:41,848 WARN L610 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-12-15 12:30:41,849 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-12-15 12:30:41,849 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-12-15 12:30:41,850 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-12-15 12:30:41,850 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-12-15 12:30:41,850 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-12-15 12:30:41,851 WARN L610 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-12-15 12:30:41,872 WARN L610 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-12-15 12:30:41,953 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:30:41,953 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:30:41,985 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 12:30:42,027 INFO L203 MainTranslator]: Completed pre-run [2021-12-15 12:30:42,046 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_byte_buf_eq_ignore_case_harness.i[4501,4514] [2021-12-15 12:30:42,047 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_byte_buf_eq_ignore_case_harness.i[4561,4574] [2021-12-15 12:30:42,080 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:30:42,081 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:30:42,081 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:30:42,083 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:30:42,084 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:30:42,087 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:30:42,087 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:30:42,088 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:30:42,088 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:30:42,131 WARN L610 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-12-15 12:30:42,132 WARN L610 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-12-15 12:30:42,133 WARN L610 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-12-15 12:30:42,134 WARN L610 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-12-15 12:30:42,134 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-12-15 12:30:42,134 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-12-15 12:30:42,135 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-12-15 12:30:42,135 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-12-15 12:30:42,135 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-12-15 12:30:42,136 WARN L610 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-12-15 12:30:42,152 WARN L610 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-12-15 12:30:42,205 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:30:42,206 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:30:42,243 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 12:30:42,540 INFO L208 MainTranslator]: Completed translation [2021-12-15 12:30:42,540 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:30:42 WrapperNode [2021-12-15 12:30:42,541 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-15 12:30:42,542 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-15 12:30:42,542 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-15 12:30:42,542 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-15 12:30:42,548 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:30:42" (1/1) ... [2021-12-15 12:30:42,632 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:30:42" (1/1) ... [2021-12-15 12:30:42,712 INFO L137 Inliner]: procedures = 711, calls = 2661, calls flagged for inlining = 59, calls inlined = 5, statements flattened = 863 [2021-12-15 12:30:42,721 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-15 12:30:42,723 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-15 12:30:42,739 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-15 12:30:42,739 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-15 12:30:42,747 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:30:42" (1/1) ... [2021-12-15 12:30:42,747 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:30:42" (1/1) ... [2021-12-15 12:30:42,760 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:30:42" (1/1) ... [2021-12-15 12:30:42,761 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:30:42" (1/1) ... [2021-12-15 12:30:42,793 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:30:42" (1/1) ... [2021-12-15 12:30:42,799 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:30:42" (1/1) ... [2021-12-15 12:30:42,818 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:30:42" (1/1) ... [2021-12-15 12:30:42,837 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-15 12:30:42,842 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-15 12:30:42,842 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-15 12:30:42,843 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-15 12:30:42,844 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:30:42" (1/1) ... [2021-12-15 12:30:42,849 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 12:30:42,857 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 12:30:42,872 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) [2021-12-15 12:30:42,894 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-15 12:30:42,910 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_is_valid [2021-12-15 12:30:42,911 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_is_valid [2021-12-15 12:30:42,911 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_eq_ignore_case [2021-12-15 12:30:42,911 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_eq_ignore_case [2021-12-15 12:30:42,911 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-15 12:30:42,911 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2021-12-15 12:30:42,911 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2021-12-15 12:30:42,912 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-12-15 12:30:42,912 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-12-15 12:30:42,912 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-12-15 12:30:42,912 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-12-15 12:30:42,912 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-12-15 12:30:42,912 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-15 12:30:42,913 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-15 12:30:42,913 INFO L130 BoogieDeclarations]: Found specification of procedure save_byte_from_array [2021-12-15 12:30:42,913 INFO L138 BoogieDeclarations]: Found implementation of procedure save_byte_from_array [2021-12-15 12:30:42,913 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-15 12:30:42,913 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_byte_buf_has_allocated_buffer_member [2021-12-15 12:30:42,913 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_byte_buf_has_allocated_buffer_member [2021-12-15 12:30:42,913 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-15 12:30:42,914 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-15 12:30:42,914 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2021-12-15 12:30:42,914 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2021-12-15 12:30:42,914 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-12-15 12:30:42,914 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2021-12-15 12:30:42,914 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2021-12-15 12:30:42,914 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-12-15 12:30:42,915 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-15 12:30:42,915 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-15 12:30:42,915 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-15 12:30:42,915 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-15 12:30:42,915 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-12-15 12:30:42,915 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-12-15 12:30:42,916 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-15 12:30:42,916 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2021-12-15 12:30:42,916 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2021-12-15 12:30:42,916 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_is_bounded [2021-12-15 12:30:42,916 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_is_bounded [2021-12-15 12:30:42,916 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_buf_equivalence [2021-12-15 12:30:42,916 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_buf_equivalence [2021-12-15 12:30:43,252 INFO L236 CfgBuilder]: Building ICFG [2021-12-15 12:30:43,253 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-15 12:30:45,705 INFO L277 CfgBuilder]: Performing block encoding [2021-12-15 12:30:45,717 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-15 12:30:45,717 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-15 12:30:45,719 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 12:30:45 BoogieIcfgContainer [2021-12-15 12:30:45,719 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-15 12:30:45,721 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-15 12:30:45,721 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-15 12:30:45,723 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-15 12:30:45,724 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.12 12:30:40" (1/3) ... [2021-12-15 12:30:45,725 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ab142df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 12:30:45, skipping insertion in model container [2021-12-15 12:30:45,730 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:30:42" (2/3) ... [2021-12-15 12:30:45,731 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ab142df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 12:30:45, skipping insertion in model container [2021-12-15 12:30:45,731 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 12:30:45" (3/3) ... [2021-12-15 12:30:45,732 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_byte_buf_eq_ignore_case_harness.i [2021-12-15 12:30:45,736 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-15 12:30:45,737 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-15 12:30:45,789 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-15 12:30:45,794 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-15 12:30:45,794 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-15 12:30:45,826 INFO L276 IsEmpty]: Start isEmpty. Operand has 143 states, 87 states have (on average 1.2413793103448276) internal successors, (108), 88 states have internal predecessors, (108), 42 states have call successors, (42), 12 states have call predecessors, (42), 12 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2021-12-15 12:30:45,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-12-15 12:30:45,836 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 12:30:45,836 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 4, 4, 4, 4, 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, 1, 1, 1, 1] [2021-12-15 12:30:45,837 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 12:30:45,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 12:30:45,841 INFO L85 PathProgramCache]: Analyzing trace with hash -822403774, now seen corresponding path program 1 times [2021-12-15 12:30:45,854 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-15 12:30:45,855 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [145304313] [2021-12-15 12:30:45,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 12:30:45,855 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-15 12:30:45,856 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-15 12:30:45,859 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-15 12:30:45,873 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-12-15 12:30:45,979 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-12-15 12:30:46,179 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-15 12:30:46,180 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.UnsupportedOperationException: Set is immutable at de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.retainAll(ImmutableSet.java:338) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.UnmodifiableTransFormula.removeSuperfluousVars(UnmodifiableTransFormula.java:212) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaBuilder.finishConstruction(TransFormulaBuilder.java:273) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.OldVarsAssignmentCache.constructGlobalVarsAssignment(OldVarsAssignmentCache.java:155) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.OldVarsAssignmentCache.getGlobalVarsAssignment(OldVarsAssignmentCache.java:93) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.DefaultTransFormulas.getGlobalVarAssignmentFromValidPos(DefaultTransFormulas.java:89) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.DefaultTransFormulas.getGlobalVarAssignmentFromValidPos(DefaultTransFormulas.java:1) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.NestedFormulas.getGlobalVarAssignment(NestedFormulas.java:126) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckUtils.decoupleArrayValues(TraceCheckUtils.java:384) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheck.(InterpolatingTraceCheck.java:87) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:132) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:211) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:124) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:88) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:610) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:413) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:393) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:263) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:176) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-12-15 12:30:46,183 INFO L158 Benchmark]: Toolchain (without parser) took 6144.00ms. Allocated memory was 54.5MB in the beginning and 218.1MB in the end (delta: 163.6MB). Free memory was 33.8MB in the beginning and 148.5MB in the end (delta: -114.7MB). Peak memory consumption was 135.9MB. Max. memory is 16.1GB. [2021-12-15 12:30:46,183 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 54.5MB. Free memory is still 36.6MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 12:30:46,183 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2501.29ms. Allocated memory was 54.5MB in the beginning and 218.1MB in the end (delta: 163.6MB). Free memory was 33.6MB in the beginning and 151.0MB in the end (delta: -117.3MB). Peak memory consumption was 62.1MB. Max. memory is 16.1GB. [2021-12-15 12:30:46,184 INFO L158 Benchmark]: Boogie Procedure Inliner took 180.19ms. Allocated memory is still 218.1MB. Free memory was 151.0MB in the beginning and 138.4MB in the end (delta: 12.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2021-12-15 12:30:46,184 INFO L158 Benchmark]: Boogie Preprocessor took 118.46ms. Allocated memory is still 218.1MB. Free memory was 138.4MB in the beginning and 131.0MB in the end (delta: 7.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-12-15 12:30:46,184 INFO L158 Benchmark]: RCFGBuilder took 2877.61ms. Allocated memory is still 218.1MB. Free memory was 130.0MB in the beginning and 75.6MB in the end (delta: 54.4MB). Peak memory consumption was 91.1MB. Max. memory is 16.1GB. [2021-12-15 12:30:46,184 INFO L158 Benchmark]: TraceAbstraction took 460.84ms. Allocated memory is still 218.1MB. Free memory was 74.6MB in the beginning and 148.5MB in the end (delta: -73.9MB). Peak memory consumption was 14.4MB. Max. memory is 16.1GB. [2021-12-15 12:30:46,186 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 54.5MB. Free memory is still 36.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2501.29ms. Allocated memory was 54.5MB in the beginning and 218.1MB in the end (delta: 163.6MB). Free memory was 33.6MB in the beginning and 151.0MB in the end (delta: -117.3MB). Peak memory consumption was 62.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 180.19ms. Allocated memory is still 218.1MB. Free memory was 151.0MB in the beginning and 138.4MB in the end (delta: 12.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Preprocessor took 118.46ms. Allocated memory is still 218.1MB. Free memory was 138.4MB in the beginning and 131.0MB in the end (delta: 7.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * RCFGBuilder took 2877.61ms. Allocated memory is still 218.1MB. Free memory was 130.0MB in the beginning and 75.6MB in the end (delta: 54.4MB). Peak memory consumption was 91.1MB. Max. memory is 16.1GB. * TraceAbstraction took 460.84ms. Allocated memory is still 218.1MB. Free memory was 74.6MB in the beginning and 148.5MB in the end (delta: -73.9MB). Peak memory consumption was 14.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: UnsupportedOperationException: Set is immutable de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: UnsupportedOperationException: Set is immutable: de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.retainAll(ImmutableSet.java:338) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-12-15 12:30:46,218 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: UnsupportedOperationException: Set is immutable