./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_byte_buf_write_u8_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_write_u8_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 624e111eb11fc6cb53be17248f0e61e18bd8cc958dfb511134351ecf4f085f78 --- Real Ultimate output --- This is Ultimate 0.2.2-3a877d227dc491413fd706022d0c47cd97beb353-3a877d2 [2021-12-15 12:30:56,293 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-15 12:30:56,295 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-15 12:30:56,354 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-15 12:30:56,354 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-15 12:30:56,357 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-15 12:30:56,358 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-15 12:30:56,363 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-15 12:30:56,364 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-15 12:30:56,367 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-15 12:30:56,367 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-15 12:30:56,369 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-15 12:30:56,369 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-15 12:30:56,370 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-15 12:30:56,372 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-15 12:30:56,373 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-15 12:30:56,374 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-15 12:30:56,387 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-15 12:30:56,390 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-15 12:30:56,394 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-15 12:30:56,395 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-15 12:30:56,396 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-15 12:30:56,397 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-15 12:30:56,397 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-15 12:30:56,402 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-15 12:30:56,402 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-15 12:30:56,402 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-15 12:30:56,403 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-15 12:30:56,403 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-15 12:30:56,404 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-15 12:30:56,404 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-15 12:30:56,405 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-15 12:30:56,406 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-15 12:30:56,407 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-15 12:30:56,408 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-15 12:30:56,409 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-15 12:30:56,409 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-15 12:30:56,409 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-15 12:30:56,409 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-15 12:30:56,410 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-15 12:30:56,410 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-15 12:30:56,411 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-15 12:30:56,452 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-15 12:30:56,453 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-15 12:30:56,453 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-15 12:30:56,453 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-15 12:30:56,454 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-15 12:30:56,454 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-15 12:30:56,454 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-15 12:30:56,455 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-15 12:30:56,455 INFO L138 SettingsManager]: * Use SBE=true [2021-12-15 12:30:56,455 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-15 12:30:56,455 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-15 12:30:56,456 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-15 12:30:56,456 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-15 12:30:56,456 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-15 12:30:56,456 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-15 12:30:56,456 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-15 12:30:56,456 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-15 12:30:56,456 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-15 12:30:56,457 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-15 12:30:56,457 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-15 12:30:56,457 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-15 12:30:56,457 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 12:30:56,457 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-15 12:30:56,457 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-15 12:30:56,457 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-15 12:30:56,458 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-15 12:30:56,465 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-15 12:30:56,466 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-15 12:30:56,466 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-15 12:30:56,466 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-15 12:30:56,466 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-15 12:30:56,466 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 624e111eb11fc6cb53be17248f0e61e18bd8cc958dfb511134351ecf4f085f78 [2021-12-15 12:30:56,821 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-15 12:30:56,839 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-15 12:30:56,841 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-15 12:30:56,842 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-15 12:30:56,843 INFO L275 PluginConnector]: CDTParser initialized [2021-12-15 12:30:56,844 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_byte_buf_write_u8_harness.i [2021-12-15 12:30:56,912 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c0e079ebc/9287857c9c2a4d04ba5ec356a8308754/FLAG4e915af7b [2021-12-15 12:30:57,533 INFO L306 CDTParser]: Found 1 translation units. [2021-12-15 12:30:57,534 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_u8_harness.i [2021-12-15 12:30:57,560 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c0e079ebc/9287857c9c2a4d04ba5ec356a8308754/FLAG4e915af7b [2021-12-15 12:30:57,927 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c0e079ebc/9287857c9c2a4d04ba5ec356a8308754 [2021-12-15 12:30:57,930 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-15 12:30:57,931 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-15 12:30:57,934 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-15 12:30:57,934 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-15 12:30:57,936 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-15 12:30:57,937 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 12:30:57" (1/1) ... [2021-12-15 12:30:57,938 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@fdbd94a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:30:57, skipping insertion in model container [2021-12-15 12:30:57,938 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 12:30:57" (1/1) ... [2021-12-15 12:30:57,943 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-15 12:30:58,073 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 12:30:58,396 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_write_u8_harness.i[4495,4508] [2021-12-15 12:30:58,403 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_write_u8_harness.i[4555,4568] [2021-12-15 12:30:59,446 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:30:59,447 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:30:59,448 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:30:59,448 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:30:59,449 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:30:59,471 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:30:59,472 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:30:59,475 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:30:59,475 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:30:59,832 WARN L610 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-12-15 12:30:59,833 WARN L610 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-12-15 12:30:59,834 WARN L610 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-12-15 12:30:59,835 WARN L610 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-12-15 12:30:59,836 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-12-15 12:30:59,836 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-12-15 12:30:59,837 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-12-15 12:30:59,837 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-12-15 12:30:59,838 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-12-15 12:30:59,838 WARN L610 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-12-15 12:30:59,944 WARN L610 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-12-15 12:31:00,057 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:31:00,059 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:31:00,137 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 12:31:00,180 INFO L203 MainTranslator]: Completed pre-run [2021-12-15 12:31:00,200 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_write_u8_harness.i[4495,4508] [2021-12-15 12:31:00,203 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_write_u8_harness.i[4555,4568] [2021-12-15 12:31:00,255 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:31:00,255 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:31:00,256 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:31:00,256 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:31:00,257 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:31:00,262 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:31:00,263 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:31:00,263 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:31:00,264 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:31:00,288 WARN L610 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-12-15 12:31:00,288 WARN L610 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-12-15 12:31:00,289 WARN L610 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-12-15 12:31:00,289 WARN L610 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-12-15 12:31:00,291 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-12-15 12:31:00,292 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-12-15 12:31:00,292 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-12-15 12:31:00,292 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-12-15 12:31:00,293 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-12-15 12:31:00,297 WARN L610 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-12-15 12:31:00,316 WARN L610 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-12-15 12:31:00,359 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:31:00,359 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:31:00,381 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 12:31:00,559 INFO L208 MainTranslator]: Completed translation [2021-12-15 12:31:00,560 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:31:00 WrapperNode [2021-12-15 12:31:00,560 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-15 12:31:00,561 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-15 12:31:00,561 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-15 12:31:00,561 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-15 12:31:00,566 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:31:00" (1/1) ... [2021-12-15 12:31:00,664 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:31:00" (1/1) ... [2021-12-15 12:31:00,752 INFO L137 Inliner]: procedures = 691, calls = 2619, calls flagged for inlining = 62, calls inlined = 9, statements flattened = 856 [2021-12-15 12:31:00,753 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-15 12:31:00,753 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-15 12:31:00,754 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-15 12:31:00,754 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-15 12:31:00,761 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:31:00" (1/1) ... [2021-12-15 12:31:00,762 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:31:00" (1/1) ... [2021-12-15 12:31:00,779 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:31:00" (1/1) ... [2021-12-15 12:31:00,779 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:31:00" (1/1) ... [2021-12-15 12:31:00,813 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:31:00" (1/1) ... [2021-12-15 12:31:00,827 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:31:00" (1/1) ... [2021-12-15 12:31:00,834 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:31:00" (1/1) ... [2021-12-15 12:31:00,849 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-15 12:31:00,852 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-15 12:31:00,852 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-15 12:31:00,852 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-15 12:31:00,853 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:31:00" (1/1) ... [2021-12-15 12:31:00,858 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 12:31:00,868 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 12:31:00,880 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 12:31:00,931 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 12:31:00,949 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_is_valid [2021-12-15 12:31:00,949 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_is_valid [2021-12-15 12:31:00,950 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-15 12:31:00,950 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2021-12-15 12:31:00,950 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2021-12-15 12:31:00,950 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-15 12:31:00,951 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-12-15 12:31:00,951 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-12-15 12:31:00,951 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-15 12:31:00,951 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-15 12:31:00,952 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-15 12:31:00,953 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_impl [2021-12-15 12:31:00,953 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_impl [2021-12-15 12:31:00,953 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-15 12:31:00,953 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-15 12:31:00,954 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2021-12-15 12:31:00,954 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2021-12-15 12:31:00,954 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2021-12-15 12:31:00,954 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2021-12-15 12:31:00,954 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-15 12:31:00,954 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-15 12:31:00,955 INFO L130 BoogieDeclarations]: Found specification of procedure my_memcpy [2021-12-15 12:31:00,955 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memcpy [2021-12-15 12:31:00,955 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-15 12:31:00,955 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-15 12:31:00,956 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_write [2021-12-15 12:31:00,956 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_write [2021-12-15 12:31:00,956 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-15 12:31:00,957 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2021-12-15 12:31:00,957 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2021-12-15 12:31:00,957 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-15 12:31:00,958 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-15 12:31:01,200 INFO L236 CfgBuilder]: Building ICFG [2021-12-15 12:31:01,201 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-15 12:31:01,683 INFO L277 CfgBuilder]: Performing block encoding [2021-12-15 12:31:01,688 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-15 12:31:01,688 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-15 12:31:01,690 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 12:31:01 BoogieIcfgContainer [2021-12-15 12:31:01,690 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-15 12:31:01,691 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-15 12:31:01,691 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-15 12:31:01,693 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-15 12:31:01,694 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.12 12:30:57" (1/3) ... [2021-12-15 12:31:01,694 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5686b52 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 12:31:01, skipping insertion in model container [2021-12-15 12:31:01,694 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:31:00" (2/3) ... [2021-12-15 12:31:01,694 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5686b52 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 12:31:01, skipping insertion in model container [2021-12-15 12:31:01,694 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 12:31:01" (3/3) ... [2021-12-15 12:31:01,696 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_byte_buf_write_u8_harness.i [2021-12-15 12:31:01,699 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-15 12:31:01,700 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-15 12:31:01,730 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-15 12:31:01,735 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 12:31:01,735 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-15 12:31:01,748 INFO L276 IsEmpty]: Start isEmpty. Operand has 131 states, 85 states have (on average 1.2352941176470589) internal successors, (105), 86 states have internal predecessors, (105), 34 states have call successors, (34), 10 states have call predecessors, (34), 10 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2021-12-15 12:31:01,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2021-12-15 12:31:01,753 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 12:31:01,754 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:31:01,754 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 12:31:01,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 12:31:01,758 INFO L85 PathProgramCache]: Analyzing trace with hash -1647877052, now seen corresponding path program 1 times [2021-12-15 12:31:01,764 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 12:31:01,764 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [537085278] [2021-12-15 12:31:01,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 12:31:01,765 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 12:31:01,835 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-15 12:31:01,835 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 12:31:01,840 INFO L158 Benchmark]: Toolchain (without parser) took 3907.76ms. Allocated memory was 83.9MB in the beginning and 178.3MB in the end (delta: 94.4MB). Free memory was 50.6MB in the beginning and 102.1MB in the end (delta: -51.5MB). Peak memory consumption was 43.4MB. Max. memory is 16.1GB. [2021-12-15 12:31:01,840 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 69.2MB. Free memory was 42.4MB in the beginning and 42.4MB in the end (delta: 39.6kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 12:31:01,841 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2626.30ms. Allocated memory was 83.9MB in the beginning and 123.7MB in the end (delta: 39.8MB). Free memory was 50.4MB in the beginning and 60.6MB in the end (delta: -10.2MB). Peak memory consumption was 60.0MB. Max. memory is 16.1GB. [2021-12-15 12:31:01,841 INFO L158 Benchmark]: Boogie Procedure Inliner took 192.04ms. Allocated memory is still 123.7MB. Free memory was 60.6MB in the beginning and 48.9MB in the end (delta: 11.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-12-15 12:31:01,841 INFO L158 Benchmark]: Boogie Preprocessor took 97.60ms. Allocated memory is still 123.7MB. Free memory was 48.9MB in the beginning and 41.8MB in the end (delta: 7.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-15 12:31:01,842 INFO L158 Benchmark]: RCFGBuilder took 838.28ms. Allocated memory was 123.7MB in the beginning and 178.3MB in the end (delta: 54.5MB). Free memory was 41.8MB in the beginning and 115.7MB in the end (delta: -73.9MB). Peak memory consumption was 42.2MB. Max. memory is 16.1GB. [2021-12-15 12:31:01,842 INFO L158 Benchmark]: TraceAbstraction took 147.46ms. Allocated memory is still 178.3MB. Free memory was 115.7MB in the beginning and 102.1MB in the end (delta: 13.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2021-12-15 12:31:01,844 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 69.2MB. Free memory was 42.4MB in the beginning and 42.4MB in the end (delta: 39.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2626.30ms. Allocated memory was 83.9MB in the beginning and 123.7MB in the end (delta: 39.8MB). Free memory was 50.4MB in the beginning and 60.6MB in the end (delta: -10.2MB). Peak memory consumption was 60.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 192.04ms. Allocated memory is still 123.7MB. Free memory was 60.6MB in the beginning and 48.9MB in the end (delta: 11.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Preprocessor took 97.60ms. Allocated memory is still 123.7MB. Free memory was 48.9MB in the beginning and 41.8MB in the end (delta: 7.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 838.28ms. Allocated memory was 123.7MB in the beginning and 178.3MB in the end (delta: 54.5MB). Free memory was 41.8MB in the beginning and 115.7MB in the end (delta: -73.9MB). Peak memory consumption was 42.2MB. Max. memory is 16.1GB. * TraceAbstraction took 147.46ms. Allocated memory is still 178.3MB. Free memory was 115.7MB in the beginning and 102.1MB in the end (delta: 13.6MB). 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 12:31:01,871 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_write_u8_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 624e111eb11fc6cb53be17248f0e61e18bd8cc958dfb511134351ecf4f085f78 --- Real Ultimate output --- This is Ultimate 0.2.2-3a877d227dc491413fd706022d0c47cd97beb353-3a877d2 [2021-12-15 12:31:03,708 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-15 12:31:03,711 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-15 12:31:03,749 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-15 12:31:03,749 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-15 12:31:03,752 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-15 12:31:03,753 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-15 12:31:03,758 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-15 12:31:03,760 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-15 12:31:03,764 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-15 12:31:03,765 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-15 12:31:03,766 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-15 12:31:03,766 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-15 12:31:03,768 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-15 12:31:03,769 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-15 12:31:03,774 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-15 12:31:03,775 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-15 12:31:03,775 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-15 12:31:03,777 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-15 12:31:03,782 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-15 12:31:03,783 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-15 12:31:03,784 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-15 12:31:03,785 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-15 12:31:03,786 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-15 12:31:03,791 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-15 12:31:03,791 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-15 12:31:03,792 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-15 12:31:03,793 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-15 12:31:03,793 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-15 12:31:03,794 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-15 12:31:03,794 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-15 12:31:03,795 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-15 12:31:03,796 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-15 12:31:03,796 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-15 12:31:03,797 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-15 12:31:03,797 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-15 12:31:03,798 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-15 12:31:03,798 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-15 12:31:03,798 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-15 12:31:03,799 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-15 12:31:03,800 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-15 12:31:03,803 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2021-12-15 12:31:03,833 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-15 12:31:03,834 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-15 12:31:03,835 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-15 12:31:03,835 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-15 12:31:03,836 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-15 12:31:03,836 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-15 12:31:03,838 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-15 12:31:03,838 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-15 12:31:03,838 INFO L138 SettingsManager]: * Use SBE=true [2021-12-15 12:31:03,838 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-15 12:31:03,839 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-15 12:31:03,839 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-15 12:31:03,840 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-15 12:31:03,840 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-15 12:31:03,840 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-12-15 12:31:03,840 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-12-15 12:31:03,840 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-12-15 12:31:03,840 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-15 12:31:03,841 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-15 12:31:03,841 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-15 12:31:03,841 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-15 12:31:03,841 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-15 12:31:03,841 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-15 12:31:03,841 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 12:31:03,842 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-15 12:31:03,842 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-15 12:31:03,842 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-15 12:31:03,842 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-12-15 12:31:03,842 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-12-15 12:31:03,842 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-15 12:31:03,843 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-15 12:31:03,843 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-15 12:31:03,843 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-15 12:31:03,843 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-12-15 12:31:03,843 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 624e111eb11fc6cb53be17248f0e61e18bd8cc958dfb511134351ecf4f085f78 [2021-12-15 12:31:04,119 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-15 12:31:04,142 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-15 12:31:04,144 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-15 12:31:04,145 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-15 12:31:04,145 INFO L275 PluginConnector]: CDTParser initialized [2021-12-15 12:31:04,146 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_byte_buf_write_u8_harness.i [2021-12-15 12:31:04,208 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3dca02a6a/e2b9850743bb4c6992175fdef7ff58e1/FLAGf1e70aeda [2021-12-15 12:31:04,804 INFO L306 CDTParser]: Found 1 translation units. [2021-12-15 12:31:04,804 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_u8_harness.i [2021-12-15 12:31:04,832 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3dca02a6a/e2b9850743bb4c6992175fdef7ff58e1/FLAGf1e70aeda [2021-12-15 12:31:05,194 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3dca02a6a/e2b9850743bb4c6992175fdef7ff58e1 [2021-12-15 12:31:05,196 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-15 12:31:05,197 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-15 12:31:05,199 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-15 12:31:05,199 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-15 12:31:05,201 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-15 12:31:05,202 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 12:31:05" (1/1) ... [2021-12-15 12:31:05,202 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a4cfeb0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:31:05, skipping insertion in model container [2021-12-15 12:31:05,203 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 12:31:05" (1/1) ... [2021-12-15 12:31:05,207 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-15 12:31:05,309 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 12:31:05,633 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_write_u8_harness.i[4495,4508] [2021-12-15 12:31:05,638 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_write_u8_harness.i[4555,4568] [2021-12-15 12:31:06,216 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:31:06,217 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:31:06,219 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:31:06,220 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:31:06,221 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:31:06,236 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:31:06,240 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:31:06,242 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:31:06,243 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:31:06,514 WARN L610 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-12-15 12:31:06,516 WARN L610 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-12-15 12:31:06,516 WARN L610 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-12-15 12:31:06,517 WARN L610 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-12-15 12:31:06,519 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-12-15 12:31:06,520 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-12-15 12:31:06,521 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-12-15 12:31:06,523 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-12-15 12:31:06,524 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-12-15 12:31:06,525 WARN L610 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-12-15 12:31:06,626 WARN L610 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-12-15 12:31:06,733 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:31:06,734 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:31:06,829 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 12:31:06,876 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-12-15 12:31:06,918 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 12:31:06,922 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_write_u8_harness.i[4495,4508] [2021-12-15 12:31:06,922 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_write_u8_harness.i[4555,4568] [2021-12-15 12:31:06,947 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:31:06,947 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:31:06,948 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:31:06,948 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:31:06,948 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:31:06,957 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:31:06,958 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:31:06,958 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:31:06,971 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:31:07,008 WARN L610 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-12-15 12:31:07,009 WARN L610 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-12-15 12:31:07,009 WARN L610 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-12-15 12:31:07,010 WARN L610 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-12-15 12:31:07,010 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-12-15 12:31:07,010 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-12-15 12:31:07,011 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-12-15 12:31:07,011 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-12-15 12:31:07,011 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-12-15 12:31:07,011 WARN L610 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-12-15 12:31:07,039 WARN L610 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-12-15 12:31:07,106 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:31:07,106 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:31:07,125 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 12:31:07,155 INFO L203 MainTranslator]: Completed pre-run [2021-12-15 12:31:07,176 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_write_u8_harness.i[4495,4508] [2021-12-15 12:31:07,177 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_write_u8_harness.i[4555,4568] [2021-12-15 12:31:07,231 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:31:07,231 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:31:07,231 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:31:07,231 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:31:07,232 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:31:07,234 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:31:07,234 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:31:07,235 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:31:07,235 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:31:07,269 WARN L610 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-12-15 12:31:07,270 WARN L610 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-12-15 12:31:07,270 WARN L610 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-12-15 12:31:07,271 WARN L610 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-12-15 12:31:07,271 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-12-15 12:31:07,271 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-12-15 12:31:07,272 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-12-15 12:31:07,272 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-12-15 12:31:07,272 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-12-15 12:31:07,273 WARN L610 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-12-15 12:31:07,290 WARN L610 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-12-15 12:31:07,345 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:31:07,345 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:31:07,367 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 12:31:07,612 INFO L208 MainTranslator]: Completed translation [2021-12-15 12:31:07,612 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:31:07 WrapperNode [2021-12-15 12:31:07,612 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-15 12:31:07,613 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-15 12:31:07,613 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-15 12:31:07,613 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-15 12:31:07,618 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:31:07" (1/1) ... [2021-12-15 12:31:07,681 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:31:07" (1/1) ... [2021-12-15 12:31:07,749 INFO L137 Inliner]: procedures = 711, calls = 2619, calls flagged for inlining = 62, calls inlined = 9, statements flattened = 857 [2021-12-15 12:31:07,749 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-15 12:31:07,751 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-15 12:31:07,751 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-15 12:31:07,751 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-15 12:31:07,757 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:31:07" (1/1) ... [2021-12-15 12:31:07,758 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:31:07" (1/1) ... [2021-12-15 12:31:07,773 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:31:07" (1/1) ... [2021-12-15 12:31:07,773 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:31:07" (1/1) ... [2021-12-15 12:31:07,803 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:31:07" (1/1) ... [2021-12-15 12:31:07,806 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:31:07" (1/1) ... [2021-12-15 12:31:07,812 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:31:07" (1/1) ... [2021-12-15 12:31:07,820 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-15 12:31:07,821 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-15 12:31:07,821 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-15 12:31:07,821 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-15 12:31:07,821 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:31:07" (1/1) ... [2021-12-15 12:31:07,826 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 12:31:07,834 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 12:31:07,856 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 12:31:07,861 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 12:31:07,880 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_is_valid [2021-12-15 12:31:07,880 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_is_valid [2021-12-15 12:31:07,880 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-15 12:31:07,880 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2021-12-15 12:31:07,880 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2021-12-15 12:31:07,881 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-12-15 12:31:07,881 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-12-15 12:31:07,881 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-12-15 12:31:07,881 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-12-15 12:31:07,881 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-12-15 12:31:07,881 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-15 12:31:07,881 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-15 12:31:07,881 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-15 12:31:07,882 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_impl [2021-12-15 12:31:07,883 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_impl [2021-12-15 12:31:07,883 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-15 12:31:07,883 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-15 12:31:07,883 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2021-12-15 12:31:07,883 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2021-12-15 12:31:07,883 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-12-15 12:31:07,884 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2021-12-15 12:31:07,884 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2021-12-15 12:31:07,884 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-12-15 12:31:07,884 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-15 12:31:07,884 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-15 12:31:07,884 INFO L130 BoogieDeclarations]: Found specification of procedure my_memcpy [2021-12-15 12:31:07,884 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memcpy [2021-12-15 12:31:07,884 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-15 12:31:07,885 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-15 12:31:07,885 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_write [2021-12-15 12:31:07,885 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_write [2021-12-15 12:31:07,885 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-12-15 12:31:07,885 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-12-15 12:31:07,885 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-15 12:31:07,885 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2021-12-15 12:31:07,886 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2021-12-15 12:31:08,111 INFO L236 CfgBuilder]: Building ICFG [2021-12-15 12:31:08,117 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-15 12:31:09,063 INFO L277 CfgBuilder]: Performing block encoding [2021-12-15 12:31:09,071 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-15 12:31:09,071 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-15 12:31:09,073 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 12:31:09 BoogieIcfgContainer [2021-12-15 12:31:09,073 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-15 12:31:09,076 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-15 12:31:09,076 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-15 12:31:09,078 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-15 12:31:09,079 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.12 12:31:05" (1/3) ... [2021-12-15 12:31:09,080 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37f208d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 12:31:09, skipping insertion in model container [2021-12-15 12:31:09,080 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:31:07" (2/3) ... [2021-12-15 12:31:09,080 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37f208d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 12:31:09, skipping insertion in model container [2021-12-15 12:31:09,080 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 12:31:09" (3/3) ... [2021-12-15 12:31:09,081 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_byte_buf_write_u8_harness.i [2021-12-15 12:31:09,091 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-15 12:31:09,091 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-15 12:31:09,133 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-15 12:31:09,138 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 12:31:09,138 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-15 12:31:09,152 INFO L276 IsEmpty]: Start isEmpty. Operand has 131 states, 85 states have (on average 1.2352941176470589) internal successors, (105), 86 states have internal predecessors, (105), 34 states have call successors, (34), 10 states have call predecessors, (34), 10 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2021-12-15 12:31:09,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2021-12-15 12:31:09,161 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 12:31:09,161 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:31:09,162 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 12:31:09,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 12:31:09,166 INFO L85 PathProgramCache]: Analyzing trace with hash -1965629008, now seen corresponding path program 1 times [2021-12-15 12:31:09,176 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-15 12:31:09,177 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [175154018] [2021-12-15 12:31:09,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 12:31:09,178 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-15 12:31:09,178 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-15 12:31:09,180 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 12:31:09,181 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 12:31:09,278 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 12:31:09,466 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 12:31:09,467 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 12:31:09,475 INFO L158 Benchmark]: Toolchain (without parser) took 4274.31ms. Allocated memory was 60.8MB in the beginning and 234.9MB in the end (delta: 174.1MB). Free memory was 30.1MB in the beginning and 138.0MB in the end (delta: -107.9MB). Peak memory consumption was 67.5MB. Max. memory is 16.1GB. [2021-12-15 12:31:09,476 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 60.8MB. Free memory was 43.1MB in the beginning and 43.1MB in the end (delta: 50.9kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 12:31:09,476 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2413.93ms. Allocated memory was 60.8MB in the beginning and 132.1MB in the end (delta: 71.3MB). Free memory was 30.0MB in the beginning and 77.2MB in the end (delta: -47.2MB). Peak memory consumption was 58.0MB. Max. memory is 16.1GB. [2021-12-15 12:31:09,477 INFO L158 Benchmark]: Boogie Procedure Inliner took 136.70ms. Allocated memory is still 132.1MB. Free memory was 77.2MB in the beginning and 64.6MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-12-15 12:31:09,477 INFO L158 Benchmark]: Boogie Preprocessor took 69.01ms. Allocated memory is still 132.1MB. Free memory was 64.6MB in the beginning and 57.1MB in the end (delta: 7.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-15 12:31:09,477 INFO L158 Benchmark]: RCFGBuilder took 1254.63ms. Allocated memory was 132.1MB in the beginning and 234.9MB in the end (delta: 102.8MB). Free memory was 56.2MB in the beginning and 155.4MB in the end (delta: -99.2MB). Peak memory consumption was 68.4MB. Max. memory is 16.1GB. [2021-12-15 12:31:09,477 INFO L158 Benchmark]: TraceAbstraction took 394.20ms. Allocated memory is still 234.9MB. Free memory was 154.4MB in the beginning and 138.0MB in the end (delta: 16.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2021-12-15 12:31:09,480 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 60.8MB. Free memory was 43.1MB in the beginning and 43.1MB in the end (delta: 50.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2413.93ms. Allocated memory was 60.8MB in the beginning and 132.1MB in the end (delta: 71.3MB). Free memory was 30.0MB in the beginning and 77.2MB in the end (delta: -47.2MB). Peak memory consumption was 58.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 136.70ms. Allocated memory is still 132.1MB. Free memory was 77.2MB in the beginning and 64.6MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Preprocessor took 69.01ms. Allocated memory is still 132.1MB. Free memory was 64.6MB in the beginning and 57.1MB in the end (delta: 7.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 1254.63ms. Allocated memory was 132.1MB in the beginning and 234.9MB in the end (delta: 102.8MB). Free memory was 56.2MB in the beginning and 155.4MB in the end (delta: -99.2MB). Peak memory consumption was 68.4MB. Max. memory is 16.1GB. * TraceAbstraction took 394.20ms. Allocated memory is still 234.9MB. Free memory was 154.4MB in the beginning and 138.0MB in the end (delta: 16.4MB). 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 12:31:09,529 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