./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_byte_buf_write_be32_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 53f42b1a Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc61b42-5076-4253-9bcd-acb4133fa6f3/bin/utaipan-TEXQjIfE4P/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc61b42-5076-4253-9bcd-acb4133fa6f3/bin/utaipan-TEXQjIfE4P/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc61b42-5076-4253-9bcd-acb4133fa6f3/bin/utaipan-TEXQjIfE4P/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc61b42-5076-4253-9bcd-acb4133fa6f3/bin/utaipan-TEXQjIfE4P/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_buf_write_be32_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc61b42-5076-4253-9bcd-acb4133fa6f3/bin/utaipan-TEXQjIfE4P/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc61b42-5076-4253-9bcd-acb4133fa6f3/bin/utaipan-TEXQjIfE4P --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 Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 2d2088ac57520281350e2a5a3a1c8295b6f3f6b1edc40c64fce86e2816b5a5aa --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-21 01:31:46,723 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-21 01:31:46,726 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-21 01:31:46,813 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-21 01:31:46,814 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-21 01:31:46,819 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-21 01:31:46,822 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-21 01:31:46,827 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-21 01:31:46,830 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-21 01:31:46,837 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-21 01:31:46,839 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-21 01:31:46,841 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-21 01:31:46,842 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-21 01:31:46,846 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-21 01:31:46,849 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-21 01:31:46,855 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-21 01:31:46,857 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-21 01:31:46,859 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-21 01:31:46,862 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-21 01:31:46,869 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-21 01:31:46,872 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-21 01:31:46,876 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-21 01:31:46,880 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-21 01:31:46,882 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-21 01:31:46,893 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-21 01:31:46,894 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-21 01:31:46,894 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-21 01:31:46,897 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-21 01:31:46,898 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-21 01:31:46,900 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-21 01:31:46,900 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-21 01:31:46,902 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-21 01:31:46,904 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-21 01:31:46,906 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-21 01:31:46,908 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-21 01:31:46,908 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-21 01:31:46,909 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-21 01:31:46,909 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-21 01:31:46,910 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-21 01:31:46,911 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-21 01:31:46,912 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-21 01:31:46,913 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc61b42-5076-4253-9bcd-acb4133fa6f3/bin/utaipan-TEXQjIfE4P/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-21 01:31:46,970 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-21 01:31:46,972 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-21 01:31:46,973 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-21 01:31:46,973 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-21 01:31:46,975 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-21 01:31:46,975 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-21 01:31:46,975 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-21 01:31:46,975 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-21 01:31:46,976 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-21 01:31:46,976 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-21 01:31:46,977 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-21 01:31:46,977 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-21 01:31:46,978 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-21 01:31:46,978 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-21 01:31:46,978 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-21 01:31:46,979 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-21 01:31:46,979 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-21 01:31:46,979 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-21 01:31:46,980 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-21 01:31:46,980 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-21 01:31:46,980 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-21 01:31:46,981 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-21 01:31:46,981 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-21 01:31:46,981 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-21 01:31:46,981 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-21 01:31:46,982 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-21 01:31:46,984 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-21 01:31:46,984 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-21 01:31:46,984 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-21 01:31:46,984 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 01:31:46,985 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-21 01:31:46,985 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-21 01:31:46,986 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-21 01:31:46,986 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-21 01:31:46,986 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-21 01:31:46,986 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-21 01:31:46,987 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-21 01:31:46,987 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-21 01:31:46,987 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc61b42-5076-4253-9bcd-acb4133fa6f3/bin/utaipan-TEXQjIfE4P/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc61b42-5076-4253-9bcd-acb4133fa6f3/bin/utaipan-TEXQjIfE4P Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2d2088ac57520281350e2a5a3a1c8295b6f3f6b1edc40c64fce86e2816b5a5aa [2021-11-21 01:31:47,392 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-21 01:31:47,420 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-21 01:31:47,424 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-21 01:31:47,425 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-21 01:31:47,426 INFO L275 PluginConnector]: CDTParser initialized [2021-11-21 01:31:47,428 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc61b42-5076-4253-9bcd-acb4133fa6f3/bin/utaipan-TEXQjIfE4P/../../sv-benchmarks/c/aws-c-common/aws_byte_buf_write_be32_harness.i [2021-11-21 01:31:47,543 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc61b42-5076-4253-9bcd-acb4133fa6f3/bin/utaipan-TEXQjIfE4P/data/0e1837db3/bf3d9bd282004bf4861ee2e30887942a/FLAG615c5e271 [2021-11-21 01:31:48,763 INFO L306 CDTParser]: Found 1 translation units. [2021-11-21 01:31:48,765 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc61b42-5076-4253-9bcd-acb4133fa6f3/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_be32_harness.i [2021-11-21 01:31:48,823 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc61b42-5076-4253-9bcd-acb4133fa6f3/bin/utaipan-TEXQjIfE4P/data/0e1837db3/bf3d9bd282004bf4861ee2e30887942a/FLAG615c5e271 [2021-11-21 01:31:49,059 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc61b42-5076-4253-9bcd-acb4133fa6f3/bin/utaipan-TEXQjIfE4P/data/0e1837db3/bf3d9bd282004bf4861ee2e30887942a [2021-11-21 01:31:49,062 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-21 01:31:49,063 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-21 01:31:49,066 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-21 01:31:49,066 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-21 01:31:49,070 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-21 01:31:49,072 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 01:31:49" (1/1) ... [2021-11-21 01:31:49,073 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c6589a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:31:49, skipping insertion in model container [2021-11-21 01:31:49,073 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 01:31:49" (1/1) ... [2021-11-21 01:31:49,082 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-21 01:31:49,250 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-21 01:31:49,680 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc61b42-5076-4253-9bcd-acb4133fa6f3/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_be32_harness.i[4497,4510] [2021-11-21 01:31:49,687 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc61b42-5076-4253-9bcd-acb4133fa6f3/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_be32_harness.i[4557,4570] [2021-11-21 01:31:50,872 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 01:31:50,877 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 01:31:50,879 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 01:31:50,881 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 01:31:50,885 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 01:31:50,920 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 01:31:50,928 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 01:31:50,931 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 01:31:50,934 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 01:31:51,592 WARN L610 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-21 01:31:51,593 WARN L610 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-21 01:31:51,595 WARN L610 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-21 01:31:51,596 WARN L610 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-21 01:31:51,598 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-21 01:31:51,599 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-21 01:31:51,608 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-21 01:31:51,609 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-21 01:31:51,610 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-21 01:31:51,611 WARN L610 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-21 01:31:51,819 WARN L610 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-21 01:31:51,935 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 01:31:51,936 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 01:31:52,118 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 01:31:52,208 INFO L203 MainTranslator]: Completed pre-run [2021-11-21 01:31:52,240 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc61b42-5076-4253-9bcd-acb4133fa6f3/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_be32_harness.i[4497,4510] [2021-11-21 01:31:52,246 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc61b42-5076-4253-9bcd-acb4133fa6f3/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_be32_harness.i[4557,4570] [2021-11-21 01:31:52,322 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 01:31:52,324 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 01:31:52,325 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 01:31:52,326 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 01:31:52,327 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 01:31:52,344 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 01:31:52,345 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 01:31:52,347 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 01:31:52,347 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 01:31:52,392 WARN L610 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-21 01:31:52,393 WARN L610 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-21 01:31:52,394 WARN L610 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-21 01:31:52,395 WARN L610 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-21 01:31:52,396 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-21 01:31:52,396 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-21 01:31:52,397 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-21 01:31:52,398 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-21 01:31:52,398 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-21 01:31:52,399 WARN L610 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-21 01:31:52,437 WARN L610 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-21 01:31:52,548 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 01:31:52,549 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 01:31:52,597 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 01:31:52,973 INFO L208 MainTranslator]: Completed translation [2021-11-21 01:31:52,974 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:31:52 WrapperNode [2021-11-21 01:31:52,974 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-21 01:31:52,975 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-21 01:31:52,975 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-21 01:31:52,976 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-21 01:31:52,995 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:31:52" (1/1) ... [2021-11-21 01:31:53,171 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:31:52" (1/1) ... [2021-11-21 01:31:53,288 INFO L137 Inliner]: procedures = 691, calls = 2619, calls flagged for inlining = 62, calls inlined = 9, statements flattened = 861 [2021-11-21 01:31:53,289 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-21 01:31:53,290 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-21 01:31:53,290 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-21 01:31:53,290 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-21 01:31:53,302 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:31:52" (1/1) ... [2021-11-21 01:31:53,302 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:31:52" (1/1) ... [2021-11-21 01:31:53,320 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:31:52" (1/1) ... [2021-11-21 01:31:53,321 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:31:52" (1/1) ... [2021-11-21 01:31:53,388 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:31:52" (1/1) ... [2021-11-21 01:31:53,394 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:31:52" (1/1) ... [2021-11-21 01:31:53,405 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:31:52" (1/1) ... [2021-11-21 01:31:53,423 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-21 01:31:53,424 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-21 01:31:53,424 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-21 01:31:53,424 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-21 01:31:53,425 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:31:52" (1/1) ... [2021-11-21 01:31:53,434 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 01:31:53,460 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc61b42-5076-4253-9bcd-acb4133fa6f3/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 01:31:53,484 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc61b42-5076-4253-9bcd-acb4133fa6f3/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-21 01:31:53,512 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc61b42-5076-4253-9bcd-acb4133fa6f3/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-21 01:31:53,547 INFO L130 BoogieDeclarations]: Found specification of procedure htonl [2021-11-21 01:31:53,548 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_is_valid [2021-11-21 01:31:53,548 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_is_valid [2021-11-21 01:31:53,549 INFO L130 BoogieDeclarations]: Found specification of procedure aws_hton32 [2021-11-21 01:31:53,550 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_hton32 [2021-11-21 01:31:53,550 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-21 01:31:53,550 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2021-11-21 01:31:53,551 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2021-11-21 01:31:53,551 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-21 01:31:53,551 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-21 01:31:53,552 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-21 01:31:53,552 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-21 01:31:53,552 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-21 01:31:53,552 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-21 01:31:53,553 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_impl [2021-11-21 01:31:53,553 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_impl [2021-11-21 01:31:53,553 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-21 01:31:53,554 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-21 01:31:53,554 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2021-11-21 01:31:53,554 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2021-11-21 01:31:53,554 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2021-11-21 01:31:53,555 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2021-11-21 01:31:53,555 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-11-21 01:31:53,556 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-11-21 01:31:53,556 INFO L130 BoogieDeclarations]: Found specification of procedure my_memcpy [2021-11-21 01:31:53,556 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memcpy [2021-11-21 01:31:53,557 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-21 01:31:53,557 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-21 01:31:53,558 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_write [2021-11-21 01:31:53,558 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_write [2021-11-21 01:31:53,558 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-21 01:31:53,558 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2021-11-21 01:31:53,558 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2021-11-21 01:31:53,558 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-21 01:31:53,559 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-21 01:31:53,949 INFO L236 CfgBuilder]: Building ICFG [2021-11-21 01:31:53,952 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-21 01:31:55,832 INFO L277 CfgBuilder]: Performing block encoding [2021-11-21 01:31:56,110 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-21 01:31:56,110 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-21 01:31:56,113 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 01:31:56 BoogieIcfgContainer [2021-11-21 01:31:56,114 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-21 01:31:56,118 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-21 01:31:56,118 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-21 01:31:56,123 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-21 01:31:56,123 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 01:31:49" (1/3) ... [2021-11-21 01:31:56,124 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3bbcefd3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 01:31:56, skipping insertion in model container [2021-11-21 01:31:56,125 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:31:52" (2/3) ... [2021-11-21 01:31:56,125 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3bbcefd3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 01:31:56, skipping insertion in model container [2021-11-21 01:31:56,126 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 01:31:56" (3/3) ... [2021-11-21 01:31:56,129 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_byte_buf_write_be32_harness.i [2021-11-21 01:31:56,141 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-21 01:31:56,141 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-21 01:31:56,227 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-21 01:31:56,235 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=FINITE_AUTOMATA, 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 [2021-11-21 01:31:56,236 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-21 01:31:56,259 INFO L276 IsEmpty]: Start isEmpty. Operand has 102 states, 54 states have (on average 1.1851851851851851) internal successors, (64), 55 states have internal predecessors, (64), 35 states have call successors, (35), 11 states have call predecessors, (35), 11 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) [2021-11-21 01:31:56,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-11-21 01:31:56,268 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:31:56,269 INFO L514 BasicCegarLoop]: trace histogram [6, 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] [2021-11-21 01:31:56,269 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:31:56,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:31:56,275 INFO L85 PathProgramCache]: Analyzing trace with hash 1691549819, now seen corresponding path program 1 times [2021-11-21 01:31:56,287 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:31:56,287 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [242210965] [2021-11-21 01:31:56,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:31:56,289 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:31:59,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:32:02,244 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 6 proven. 4 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2021-11-21 01:32:02,244 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:32:02,245 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [242210965] [2021-11-21 01:32:02,245 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [242210965] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-21 01:32:02,246 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1742468116] [2021-11-21 01:32:02,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:32:02,246 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:32:02,247 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc61b42-5076-4253-9bcd-acb4133fa6f3/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 01:32:02,249 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc61b42-5076-4253-9bcd-acb4133fa6f3/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 01:32:02,271 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc61b42-5076-4253-9bcd-acb4133fa6f3/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-21 01:32:03,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:32:03,050 INFO L263 TraceCheckSpWp]: Trace formula consists of 2541 conjuncts, 135 conjunts are in the unsatisfiable core [2021-11-21 01:32:03,080 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 01:32:03,683 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-21 01:32:03,697 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 14 [2021-11-21 01:32:10,100 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:10,101 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 12 [2021-11-21 01:32:10,114 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:10,142 INFO L354 Elim1Store]: treesize reduction 17, result has 46.9 percent of original size [2021-11-21 01:32:10,143 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 40 [2021-11-21 01:32:17,921 INFO L354 Elim1Store]: treesize reduction 40, result has 36.5 percent of original size [2021-11-21 01:32:17,922 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 72 treesize of output 78 [2021-11-21 01:32:17,946 INFO L354 Elim1Store]: treesize reduction 29, result has 19.4 percent of original size [2021-11-21 01:32:17,946 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 68 treesize of output 56 [2021-11-21 01:32:36,908 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 14 proven. 24 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-21 01:32:36,909 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 01:32:39,806 WARN L176 XnfTransformerHelper]: Simplifying conjuction of 76449 disjunctions. This might take some time...