./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_byte_buf_append_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_append_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 aad159acc9cbece9fe1ce64619aff83e5e3477bbd84af6f399f8d36d8b5384a2 --- Real Ultimate output --- This is Ultimate 0.2.2-3a877d227dc491413fd706022d0c47cd97beb353-3a877d2 [2021-12-15 12:30:23,018 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-15 12:30:23,025 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-15 12:30:23,080 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-15 12:30:23,081 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-15 12:30:23,082 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-15 12:30:23,083 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-15 12:30:23,084 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-15 12:30:23,085 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-15 12:30:23,086 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-15 12:30:23,087 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-15 12:30:23,088 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-15 12:30:23,088 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-15 12:30:23,089 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-15 12:30:23,090 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-15 12:30:23,091 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-15 12:30:23,091 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-15 12:30:23,092 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-15 12:30:23,093 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-15 12:30:23,095 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-15 12:30:23,096 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-15 12:30:23,097 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-15 12:30:23,098 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-15 12:30:23,098 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-15 12:30:23,100 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-15 12:30:23,100 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-15 12:30:23,101 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-15 12:30:23,101 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-15 12:30:23,102 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-15 12:30:23,102 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-15 12:30:23,102 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-15 12:30:23,103 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-15 12:30:23,103 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-15 12:30:23,104 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-15 12:30:23,105 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-15 12:30:23,105 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-15 12:30:23,105 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-15 12:30:23,106 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-15 12:30:23,106 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-15 12:30:23,106 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-15 12:30:23,107 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-15 12:30:23,108 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-15 12:30:23,130 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-15 12:30:23,131 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-15 12:30:23,132 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-15 12:30:23,132 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-15 12:30:23,133 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-15 12:30:23,133 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-15 12:30:23,133 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-15 12:30:23,134 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-15 12:30:23,134 INFO L138 SettingsManager]: * Use SBE=true [2021-12-15 12:30:23,134 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-15 12:30:23,135 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-15 12:30:23,135 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-15 12:30:23,135 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-15 12:30:23,136 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-15 12:30:23,136 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-15 12:30:23,136 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-15 12:30:23,136 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-15 12:30:23,136 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-15 12:30:23,137 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-15 12:30:23,137 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-15 12:30:23,137 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-15 12:30:23,137 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 12:30:23,137 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-15 12:30:23,137 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-15 12:30:23,138 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-15 12:30:23,138 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-15 12:30:23,138 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-15 12:30:23,138 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-15 12:30:23,138 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-15 12:30:23,138 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-15 12:30:23,139 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-15 12:30:23,139 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> aad159acc9cbece9fe1ce64619aff83e5e3477bbd84af6f399f8d36d8b5384a2 [2021-12-15 12:30:23,337 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-15 12:30:23,357 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-15 12:30:23,360 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-15 12:30:23,361 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-15 12:30:23,361 INFO L275 PluginConnector]: CDTParser initialized [2021-12-15 12:30:23,362 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_byte_buf_append_harness.i [2021-12-15 12:30:23,443 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eb1f5fadc/71f72b454b6e481bb81dc71d503dc1fe/FLAG3268d0d8c [2021-12-15 12:30:24,031 INFO L306 CDTParser]: Found 1 translation units. [2021-12-15 12:30:24,031 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_byte_buf_append_harness.i [2021-12-15 12:30:24,065 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eb1f5fadc/71f72b454b6e481bb81dc71d503dc1fe/FLAG3268d0d8c [2021-12-15 12:30:24,250 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eb1f5fadc/71f72b454b6e481bb81dc71d503dc1fe [2021-12-15 12:30:24,252 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-15 12:30:24,254 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-15 12:30:24,255 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-15 12:30:24,255 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-15 12:30:24,257 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-15 12:30:24,258 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 12:30:24" (1/1) ... [2021-12-15 12:30:24,259 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56c12db5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:30:24, skipping insertion in model container [2021-12-15 12:30:24,259 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 12:30:24" (1/1) ... [2021-12-15 12:30:24,263 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-15 12:30:24,341 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 12:30:24,616 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_append_harness.i[4493,4506] [2021-12-15 12:30:24,620 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_append_harness.i[4553,4566] [2021-12-15 12:30:25,151 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:30:25,152 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:30:25,154 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:30:25,158 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:30:25,159 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:30:25,168 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:30:25,171 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:30:25,172 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:30:25,173 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:30:25,467 WARN L610 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-12-15 12:30:25,468 WARN L610 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-12-15 12:30:25,469 WARN L610 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-12-15 12:30:25,470 WARN L610 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-12-15 12:30:25,471 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-12-15 12:30:25,472 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-12-15 12:30:25,472 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-12-15 12:30:25,473 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-12-15 12:30:25,473 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-12-15 12:30:25,475 WARN L610 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-12-15 12:30:25,570 WARN L610 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-12-15 12:30:25,654 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:30:25,656 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:30:25,709 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 12:30:25,743 INFO L203 MainTranslator]: Completed pre-run [2021-12-15 12:30:25,762 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_append_harness.i[4493,4506] [2021-12-15 12:30:25,763 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_append_harness.i[4553,4566] [2021-12-15 12:30:25,849 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:30:25,850 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:30:25,851 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:30:25,851 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:30:25,851 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:30:25,859 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:30:25,860 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:30:25,861 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:30:25,861 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:30:25,919 WARN L610 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-12-15 12:30:25,920 WARN L610 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-12-15 12:30:25,920 WARN L610 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-12-15 12:30:25,920 WARN L610 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-12-15 12:30:25,921 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-12-15 12:30:25,921 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-12-15 12:30:25,922 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-12-15 12:30:25,922 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-12-15 12:30:25,922 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-12-15 12:30:25,922 WARN L610 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-12-15 12:30:25,943 WARN L610 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-12-15 12:30:25,989 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:30:25,989 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:30:26,011 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 12:30:26,173 INFO L208 MainTranslator]: Completed translation [2021-12-15 12:30:26,173 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:30:26 WrapperNode [2021-12-15 12:30:26,174 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-15 12:30:26,174 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-15 12:30:26,174 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-15 12:30:26,175 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-15 12:30:26,179 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:30:26" (1/1) ... [2021-12-15 12:30:26,261 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:30:26" (1/1) ... [2021-12-15 12:30:26,324 INFO L137 Inliner]: procedures = 691, calls = 2643, calls flagged for inlining = 60, calls inlined = 8, statements flattened = 859 [2021-12-15 12:30:26,324 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-15 12:30:26,325 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-15 12:30:26,325 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-15 12:30:26,325 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-15 12:30:26,332 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:30:26" (1/1) ... [2021-12-15 12:30:26,332 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:30:26" (1/1) ... [2021-12-15 12:30:26,379 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:30:26" (1/1) ... [2021-12-15 12:30:26,380 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:30:26" (1/1) ... [2021-12-15 12:30:26,414 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:30:26" (1/1) ... [2021-12-15 12:30:26,429 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:30:26" (1/1) ... [2021-12-15 12:30:26,435 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:30:26" (1/1) ... [2021-12-15 12:30:26,451 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-15 12:30:26,455 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-15 12:30:26,456 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-15 12:30:26,456 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-15 12:30:26,457 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:30:26" (1/1) ... [2021-12-15 12:30:26,462 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 12:30:26,470 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 12:30:26,481 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 12:30:26,503 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 12:30:26,524 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_is_valid [2021-12-15 12:30:26,524 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_is_valid [2021-12-15 12:30:26,524 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_cursor_is_valid [2021-12-15 12:30:26,525 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_cursor_is_valid [2021-12-15 12:30:26,525 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-15 12:30:26,525 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2021-12-15 12:30:26,525 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2021-12-15 12:30:26,525 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_append [2021-12-15 12:30:26,526 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_append [2021-12-15 12:30:26,526 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-15 12:30:26,526 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2021-12-15 12:30:26,527 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2021-12-15 12:30:26,527 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-12-15 12:30:26,527 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-12-15 12:30:26,527 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-15 12:30:26,527 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-15 12:30:26,528 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-15 12:30:26,528 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_impl [2021-12-15 12:30:26,528 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_impl [2021-12-15 12:30:26,528 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-15 12:30:26,528 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-15 12:30:26,528 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2021-12-15 12:30:26,528 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2021-12-15 12:30:26,528 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-15 12:30:26,529 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-15 12:30:26,529 INFO L130 BoogieDeclarations]: Found specification of procedure my_memcpy [2021-12-15 12:30:26,529 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memcpy [2021-12-15 12:30:26,529 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-15 12:30:26,530 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-15 12:30:26,530 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-15 12:30:26,530 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2021-12-15 12:30:26,530 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2021-12-15 12:30:26,530 INFO L130 BoogieDeclarations]: Found specification of procedure assert_bytes_match [2021-12-15 12:30:26,531 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_bytes_match [2021-12-15 12:30:26,531 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2021-12-15 12:30:26,531 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2021-12-15 12:30:26,531 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-15 12:30:26,531 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-15 12:30:26,742 INFO L236 CfgBuilder]: Building ICFG [2021-12-15 12:30:26,743 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-15 12:30:27,377 INFO L277 CfgBuilder]: Performing block encoding [2021-12-15 12:30:27,384 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-15 12:30:27,384 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-15 12:30:27,386 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 12:30:27 BoogieIcfgContainer [2021-12-15 12:30:27,386 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-15 12:30:27,388 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-15 12:30:27,388 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-15 12:30:27,391 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-15 12:30:27,391 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.12 12:30:24" (1/3) ... [2021-12-15 12:30:27,392 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ab41318 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 12:30:27, skipping insertion in model container [2021-12-15 12:30:27,392 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:30:26" (2/3) ... [2021-12-15 12:30:27,392 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ab41318 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 12:30:27, skipping insertion in model container [2021-12-15 12:30:27,392 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 12:30:27" (3/3) ... [2021-12-15 12:30:27,393 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_byte_buf_append_harness.i [2021-12-15 12:30:27,397 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-15 12:30:27,397 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-15 12:30:27,437 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-15 12:30:27,448 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 12:30:27,448 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-15 12:30:27,464 INFO L276 IsEmpty]: Start isEmpty. Operand has 170 states, 107 states have (on average 1.2149532710280373) internal successors, (130), 108 states have internal predecessors, (130), 48 states have call successors, (48), 13 states have call predecessors, (48), 13 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2021-12-15 12:30:27,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2021-12-15 12:30:27,472 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 12:30:27,473 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 12:30:27,474 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 12:30:27,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 12:30:27,477 INFO L85 PathProgramCache]: Analyzing trace with hash 1617698357, now seen corresponding path program 1 times [2021-12-15 12:30:27,483 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 12:30:27,484 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [827153945] [2021-12-15 12:30:27,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 12:30:27,485 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 12:30:27,574 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-15 12:30:27,577 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 12:30:27,581 INFO L158 Benchmark]: Toolchain (without parser) took 3327.11ms. Allocated memory was 100.7MB in the beginning and 289.4MB in the end (delta: 188.7MB). Free memory was 66.3MB in the beginning and 174.1MB in the end (delta: -107.8MB). Peak memory consumption was 80.5MB. Max. memory is 16.1GB. [2021-12-15 12:30:27,583 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 100.7MB. Free memory is still 58.6MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 12:30:27,584 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1918.59ms. Allocated memory was 100.7MB in the beginning and 167.8MB in the end (delta: 67.1MB). Free memory was 66.1MB in the beginning and 79.4MB in the end (delta: -13.3MB). Peak memory consumption was 69.4MB. Max. memory is 16.1GB. [2021-12-15 12:30:27,585 INFO L158 Benchmark]: Boogie Procedure Inliner took 149.95ms. Allocated memory is still 167.8MB. Free memory was 79.4MB in the beginning and 67.2MB in the end (delta: 12.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-12-15 12:30:27,586 INFO L158 Benchmark]: Boogie Preprocessor took 129.46ms. Allocated memory was 167.8MB in the beginning and 289.4MB in the end (delta: 121.6MB). Free memory was 67.2MB in the beginning and 231.7MB in the end (delta: -164.5MB). Peak memory consumption was 10.2MB. Max. memory is 16.1GB. [2021-12-15 12:30:27,588 INFO L158 Benchmark]: RCFGBuilder took 930.55ms. Allocated memory is still 289.4MB. Free memory was 231.7MB in the beginning and 188.8MB in the end (delta: 42.8MB). Peak memory consumption was 88.1MB. Max. memory is 16.1GB. [2021-12-15 12:30:27,589 INFO L158 Benchmark]: TraceAbstraction took 192.05ms. Allocated memory is still 289.4MB. Free memory was 188.8MB in the beginning and 174.1MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2021-12-15 12:30:27,591 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 100.7MB. Free memory is still 58.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1918.59ms. Allocated memory was 100.7MB in the beginning and 167.8MB in the end (delta: 67.1MB). Free memory was 66.1MB in the beginning and 79.4MB in the end (delta: -13.3MB). Peak memory consumption was 69.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 149.95ms. Allocated memory is still 167.8MB. Free memory was 79.4MB in the beginning and 67.2MB in the end (delta: 12.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Preprocessor took 129.46ms. Allocated memory was 167.8MB in the beginning and 289.4MB in the end (delta: 121.6MB). Free memory was 67.2MB in the beginning and 231.7MB in the end (delta: -164.5MB). Peak memory consumption was 10.2MB. Max. memory is 16.1GB. * RCFGBuilder took 930.55ms. Allocated memory is still 289.4MB. Free memory was 231.7MB in the beginning and 188.8MB in the end (delta: 42.8MB). Peak memory consumption was 88.1MB. Max. memory is 16.1GB. * TraceAbstraction took 192.05ms. Allocated memory is still 289.4MB. Free memory was 188.8MB in the beginning and 174.1MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. 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 12:30:27,619 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 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_append_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 aad159acc9cbece9fe1ce64619aff83e5e3477bbd84af6f399f8d36d8b5384a2 --- Real Ultimate output --- This is Ultimate 0.2.2-3a877d227dc491413fd706022d0c47cd97beb353-3a877d2 [2021-12-15 12:30:29,474 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-15 12:30:29,476 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-15 12:30:29,507 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-15 12:30:29,508 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-15 12:30:29,510 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-15 12:30:29,511 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-15 12:30:29,515 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-15 12:30:29,517 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-15 12:30:29,520 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-15 12:30:29,521 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-15 12:30:29,524 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-15 12:30:29,524 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-15 12:30:29,526 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-15 12:30:29,528 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-15 12:30:29,530 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-15 12:30:29,531 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-15 12:30:29,531 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-15 12:30:29,533 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-15 12:30:29,537 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-15 12:30:29,538 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-15 12:30:29,539 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-15 12:30:29,540 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-15 12:30:29,541 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-15 12:30:29,546 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-15 12:30:29,546 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-15 12:30:29,546 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-15 12:30:29,547 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-15 12:30:29,547 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-15 12:30:29,548 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-15 12:30:29,548 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-15 12:30:29,549 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-15 12:30:29,551 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-15 12:30:29,551 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-15 12:30:29,552 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-15 12:30:29,553 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-15 12:30:29,553 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-15 12:30:29,553 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-15 12:30:29,554 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-15 12:30:29,555 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-15 12:30:29,555 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-15 12:30:29,559 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2021-12-15 12:30:29,596 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-15 12:30:29,597 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-15 12:30:29,598 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-15 12:30:29,598 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-15 12:30:29,599 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-15 12:30:29,599 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-15 12:30:29,600 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-15 12:30:29,600 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-15 12:30:29,600 INFO L138 SettingsManager]: * Use SBE=true [2021-12-15 12:30:29,601 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-15 12:30:29,601 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-15 12:30:29,601 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-15 12:30:29,602 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-15 12:30:29,602 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-15 12:30:29,602 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-12-15 12:30:29,602 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-12-15 12:30:29,602 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-12-15 12:30:29,602 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-15 12:30:29,602 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-15 12:30:29,603 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-15 12:30:29,603 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-15 12:30:29,603 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-15 12:30:29,603 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-15 12:30:29,603 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 12:30:29,603 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-15 12:30:29,604 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-15 12:30:29,604 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-15 12:30:29,604 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-12-15 12:30:29,604 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-12-15 12:30:29,604 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-15 12:30:29,604 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-15 12:30:29,604 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-15 12:30:29,605 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-15 12:30:29,605 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-12-15 12:30:29,605 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> aad159acc9cbece9fe1ce64619aff83e5e3477bbd84af6f399f8d36d8b5384a2 [2021-12-15 12:30:29,883 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-15 12:30:29,903 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-15 12:30:29,905 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-15 12:30:29,905 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-15 12:30:29,906 INFO L275 PluginConnector]: CDTParser initialized [2021-12-15 12:30:29,907 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_byte_buf_append_harness.i [2021-12-15 12:30:29,958 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/00f03a081/53c77c6ed1fe426a848d3e62930be769/FLAG2dfe4fc58 [2021-12-15 12:30:30,622 INFO L306 CDTParser]: Found 1 translation units. [2021-12-15 12:30:30,623 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_byte_buf_append_harness.i [2021-12-15 12:30:30,652 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/00f03a081/53c77c6ed1fe426a848d3e62930be769/FLAG2dfe4fc58 [2021-12-15 12:30:30,938 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/00f03a081/53c77c6ed1fe426a848d3e62930be769 [2021-12-15 12:30:30,946 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-15 12:30:30,947 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-15 12:30:30,949 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-15 12:30:30,949 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-15 12:30:30,952 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-15 12:30:30,952 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 12:30:30" (1/1) ... [2021-12-15 12:30:30,953 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@10534cf9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:30:30, skipping insertion in model container [2021-12-15 12:30:30,953 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 12:30:30" (1/1) ... [2021-12-15 12:30:30,958 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-15 12:30:31,032 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 12:30:31,236 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_append_harness.i[4493,4506] [2021-12-15 12:30:31,241 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_append_harness.i[4553,4566] [2021-12-15 12:30:31,834 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:30:31,839 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:30:31,840 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:30:31,841 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:30:31,842 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:30:31,866 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:30:31,867 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:30:31,868 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:30:31,869 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:30:32,133 WARN L610 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-12-15 12:30:32,135 WARN L610 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-12-15 12:30:32,136 WARN L610 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-12-15 12:30:32,138 WARN L610 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-12-15 12:30:32,139 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-12-15 12:30:32,139 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-12-15 12:30:32,140 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-12-15 12:30:32,140 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-12-15 12:30:32,141 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-12-15 12:30:32,141 WARN L610 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-12-15 12:30:32,253 WARN L610 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-12-15 12:30:32,311 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:30:32,311 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:30:32,375 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 12:30:32,425 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-12-15 12:30:32,456 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 12:30:32,459 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_append_harness.i[4493,4506] [2021-12-15 12:30:32,459 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_append_harness.i[4553,4566] [2021-12-15 12:30:32,508 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:30:32,509 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:30:32,509 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:30:32,509 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:30:32,510 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:30:32,514 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:30:32,514 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:30:32,517 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:30:32,517 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:30:32,558 WARN L610 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-12-15 12:30:32,558 WARN L610 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-12-15 12:30:32,559 WARN L610 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-12-15 12:30:32,561 WARN L610 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-12-15 12:30:32,562 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-12-15 12:30:32,562 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-12-15 12:30:32,563 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-12-15 12:30:32,563 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-12-15 12:30:32,563 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-12-15 12:30:32,567 WARN L610 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-12-15 12:30:32,591 WARN L610 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-12-15 12:30:32,669 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:30:32,670 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:30:32,695 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 12:30:32,724 INFO L203 MainTranslator]: Completed pre-run [2021-12-15 12:30:32,741 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_append_harness.i[4493,4506] [2021-12-15 12:30:32,741 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_append_harness.i[4553,4566] [2021-12-15 12:30:32,778 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:30:32,778 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:30:32,779 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:30:32,779 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:30:32,779 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:30:32,783 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:30:32,783 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:30:32,784 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:30:32,784 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:30:32,802 WARN L610 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-12-15 12:30:32,803 WARN L610 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-12-15 12:30:32,803 WARN L610 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-12-15 12:30:32,803 WARN L610 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-12-15 12:30:32,804 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-12-15 12:30:32,804 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-12-15 12:30:32,804 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-12-15 12:30:32,805 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-12-15 12:30:32,805 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-12-15 12:30:32,805 WARN L610 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-12-15 12:30:32,816 WARN L610 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-12-15 12:30:32,876 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:30:32,876 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:30:32,900 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 12:30:33,094 INFO L208 MainTranslator]: Completed translation [2021-12-15 12:30:33,095 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:30:33 WrapperNode [2021-12-15 12:30:33,095 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-15 12:30:33,096 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-15 12:30:33,096 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-15 12:30:33,097 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-15 12:30:33,102 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:30:33" (1/1) ... [2021-12-15 12:30:33,244 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:30:33" (1/1) ... [2021-12-15 12:30:33,366 INFO L137 Inliner]: procedures = 711, calls = 2643, calls flagged for inlining = 60, calls inlined = 8, statements flattened = 859 [2021-12-15 12:30:33,367 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-15 12:30:33,368 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-15 12:30:33,368 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-15 12:30:33,368 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-15 12:30:33,375 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:30:33" (1/1) ... [2021-12-15 12:30:33,376 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:30:33" (1/1) ... [2021-12-15 12:30:33,400 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:30:33" (1/1) ... [2021-12-15 12:30:33,400 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:30:33" (1/1) ... [2021-12-15 12:30:33,439 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:30:33" (1/1) ... [2021-12-15 12:30:33,445 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:30:33" (1/1) ... [2021-12-15 12:30:33,459 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:30:33" (1/1) ... [2021-12-15 12:30:33,470 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-15 12:30:33,476 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-15 12:30:33,477 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-15 12:30:33,477 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-15 12:30:33,478 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:30:33" (1/1) ... [2021-12-15 12:30:33,483 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 12:30:33,490 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 12:30:33,501 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 12:30:33,512 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 12:30:33,535 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_is_valid [2021-12-15 12:30:33,536 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_is_valid [2021-12-15 12:30:33,536 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_cursor_is_valid [2021-12-15 12:30:33,536 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_cursor_is_valid [2021-12-15 12:30:33,536 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-15 12:30:33,536 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2021-12-15 12:30:33,536 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2021-12-15 12:30:33,536 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-12-15 12:30:33,536 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-12-15 12:30:33,536 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-12-15 12:30:33,537 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_append [2021-12-15 12:30:33,537 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_append [2021-12-15 12:30:33,537 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2021-12-15 12:30:33,537 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2021-12-15 12:30:33,537 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-12-15 12:30:33,537 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-12-15 12:30:33,538 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-15 12:30:33,538 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-15 12:30:33,538 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-15 12:30:33,538 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_impl [2021-12-15 12:30:33,538 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_impl [2021-12-15 12:30:33,538 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-15 12:30:33,538 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-15 12:30:33,538 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2021-12-15 12:30:33,539 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2021-12-15 12:30:33,539 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-12-15 12:30:33,539 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-12-15 12:30:33,539 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-15 12:30:33,539 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-15 12:30:33,539 INFO L130 BoogieDeclarations]: Found specification of procedure my_memcpy [2021-12-15 12:30:33,540 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memcpy [2021-12-15 12:30:33,540 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-15 12:30:33,540 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-15 12:30:33,540 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-12-15 12:30:33,540 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-12-15 12:30:33,540 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-15 12:30:33,541 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2021-12-15 12:30:33,541 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2021-12-15 12:30:33,541 INFO L130 BoogieDeclarations]: Found specification of procedure assert_bytes_match [2021-12-15 12:30:33,541 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_bytes_match [2021-12-15 12:30:33,541 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2021-12-15 12:30:33,542 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2021-12-15 12:30:33,779 INFO L236 CfgBuilder]: Building ICFG [2021-12-15 12:30:33,796 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-15 12:30:34,987 INFO L277 CfgBuilder]: Performing block encoding [2021-12-15 12:30:34,997 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-15 12:30:34,997 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-15 12:30:34,999 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 12:30:34 BoogieIcfgContainer [2021-12-15 12:30:34,999 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-15 12:30:35,001 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-15 12:30:35,001 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-15 12:30:35,004 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-15 12:30:35,009 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.12 12:30:30" (1/3) ... [2021-12-15 12:30:35,010 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28be9a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 12:30:35, skipping insertion in model container [2021-12-15 12:30:35,010 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:30:33" (2/3) ... [2021-12-15 12:30:35,011 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28be9a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 12:30:35, skipping insertion in model container [2021-12-15 12:30:35,011 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 12:30:34" (3/3) ... [2021-12-15 12:30:35,012 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_byte_buf_append_harness.i [2021-12-15 12:30:35,016 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-15 12:30:35,017 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-15 12:30:35,074 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-15 12:30:35,091 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 12:30:35,092 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-15 12:30:35,135 INFO L276 IsEmpty]: Start isEmpty. Operand has 169 states, 106 states have (on average 1.2169811320754718) internal successors, (129), 107 states have internal predecessors, (129), 48 states have call successors, (48), 13 states have call predecessors, (48), 13 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2021-12-15 12:30:35,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2021-12-15 12:30:35,144 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 12:30:35,145 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 12:30:35,145 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 12:30:35,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 12:30:35,154 INFO L85 PathProgramCache]: Analyzing trace with hash -1985085193, now seen corresponding path program 1 times [2021-12-15 12:30:35,169 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-15 12:30:35,169 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1068032675] [2021-12-15 12:30:35,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 12:30:35,170 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-15 12:30:35,170 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-15 12:30:35,193 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 12:30:35,194 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 12:30:35,301 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 12:30:35,498 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 12:30:35,499 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 12:30:35,507 INFO L158 Benchmark]: Toolchain (without parser) took 4557.52ms. Allocated memory was 56.6MB in the beginning and 302.0MB in the end (delta: 245.4MB). Free memory was 34.1MB in the beginning and 203.7MB in the end (delta: -169.6MB). Peak memory consumption was 76.8MB. Max. memory is 16.1GB. [2021-12-15 12:30:35,507 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 46.1MB. Free memory was 27.5MB in the beginning and 27.5MB in the end (delta: 30.8kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 12:30:35,508 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2146.39ms. Allocated memory was 56.6MB in the beginning and 151.0MB in the end (delta: 94.4MB). Free memory was 34.0MB in the beginning and 96.4MB in the end (delta: -62.5MB). Peak memory consumption was 49.5MB. Max. memory is 16.1GB. [2021-12-15 12:30:35,508 INFO L158 Benchmark]: Boogie Procedure Inliner took 270.93ms. Allocated memory is still 151.0MB. Free memory was 96.4MB in the beginning and 84.6MB in the end (delta: 11.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-12-15 12:30:35,509 INFO L158 Benchmark]: Boogie Preprocessor took 107.68ms. Allocated memory is still 151.0MB. Free memory was 84.6MB in the beginning and 76.2MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-15 12:30:35,509 INFO L158 Benchmark]: RCFGBuilder took 1523.11ms. Allocated memory was 151.0MB in the beginning and 302.0MB in the end (delta: 151.0MB). Free memory was 76.2MB in the beginning and 220.1MB in the end (delta: -143.9MB). Peak memory consumption was 31.9MB. Max. memory is 16.1GB. [2021-12-15 12:30:35,509 INFO L158 Benchmark]: TraceAbstraction took 502.76ms. Allocated memory is still 302.0MB. Free memory was 220.1MB in the beginning and 203.7MB in the end (delta: 16.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2021-12-15 12:30:35,513 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 46.1MB. Free memory was 27.5MB in the beginning and 27.5MB in the end (delta: 30.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2146.39ms. Allocated memory was 56.6MB in the beginning and 151.0MB in the end (delta: 94.4MB). Free memory was 34.0MB in the beginning and 96.4MB in the end (delta: -62.5MB). Peak memory consumption was 49.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 270.93ms. Allocated memory is still 151.0MB. Free memory was 96.4MB in the beginning and 84.6MB in the end (delta: 11.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Preprocessor took 107.68ms. Allocated memory is still 151.0MB. Free memory was 84.6MB in the beginning and 76.2MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 1523.11ms. Allocated memory was 151.0MB in the beginning and 302.0MB in the end (delta: 151.0MB). Free memory was 76.2MB in the beginning and 220.1MB in the end (delta: -143.9MB). Peak memory consumption was 31.9MB. Max. memory is 16.1GB. * TraceAbstraction took 502.76ms. Allocated memory is still 302.0MB. Free memory was 220.1MB in the beginning and 203.7MB in the end (delta: 16.3MB). Peak memory consumption was 16.8MB. 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 12:30:35,552 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: UnsupportedOperationException: Set is immutable