./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_byte_buf_write_be16_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a1d70d2-925f-4421-b914-70bc4c535396/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a1d70d2-925f-4421-b914-70bc4c535396/bin/utaipan-I9t0OCRTmS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a1d70d2-925f-4421-b914-70bc4c535396/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a1d70d2-925f-4421-b914-70bc4c535396/bin/utaipan-I9t0OCRTmS/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_buf_write_be16_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a1d70d2-925f-4421-b914-70bc4c535396/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a1d70d2-925f-4421-b914-70bc4c535396/bin/utaipan-I9t0OCRTmS --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 e59944759baac4a78b3b5460ff6f3a8abaec03123fb9537d86aeca785269fb41 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-8393723 [2022-11-19 07:31:02,458 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 07:31:02,460 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 07:31:02,499 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 07:31:02,500 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 07:31:02,501 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 07:31:02,502 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 07:31:02,504 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 07:31:02,506 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 07:31:02,507 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 07:31:02,508 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 07:31:02,509 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 07:31:02,509 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 07:31:02,517 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 07:31:02,520 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 07:31:02,523 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 07:31:02,525 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 07:31:02,533 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 07:31:02,534 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 07:31:02,536 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 07:31:02,538 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 07:31:02,545 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 07:31:02,546 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 07:31:02,547 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 07:31:02,552 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 07:31:02,556 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 07:31:02,557 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 07:31:02,558 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 07:31:02,560 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 07:31:02,561 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 07:31:02,562 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 07:31:02,563 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 07:31:02,564 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 07:31:02,566 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 07:31:02,567 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 07:31:02,570 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 07:31:02,572 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 07:31:02,572 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 07:31:02,572 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 07:31:02,573 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 07:31:02,574 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 07:31:02,575 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a1d70d2-925f-4421-b914-70bc4c535396/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-19 07:31:02,597 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 07:31:02,597 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 07:31:02,598 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 07:31:02,598 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 07:31:02,598 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 07:31:02,599 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 07:31:02,599 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 07:31:02,599 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 07:31:02,599 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 07:31:02,599 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-19 07:31:02,599 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 07:31:02,600 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 07:31:02,600 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-19 07:31:02,600 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-19 07:31:02,600 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 07:31:02,608 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-19 07:31:02,609 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-19 07:31:02,609 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-19 07:31:02,610 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 07:31:02,610 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-19 07:31:02,610 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 07:31:02,610 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-19 07:31:02,611 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 07:31:02,611 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-19 07:31:02,611 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-19 07:31:02,611 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 07:31:02,611 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-19 07:31:02,612 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 07:31:02,612 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 07:31:02,612 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 07:31:02,612 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 07:31:02,613 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-19 07:31:02,613 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 07:31:02,613 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-19 07:31:02,613 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-19 07:31:02,613 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-19 07:31:02,614 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-19 07:31:02,614 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 07:31:02,615 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:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a1d70d2-925f-4421-b914-70bc4c535396/bin/utaipan-I9t0OCRTmS/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a1d70d2-925f-4421-b914-70bc4c535396/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e59944759baac4a78b3b5460ff6f3a8abaec03123fb9537d86aeca785269fb41 [2022-11-19 07:31:02,877 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 07:31:02,916 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 07:31:02,919 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 07:31:02,920 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 07:31:02,921 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 07:31:02,922 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a1d70d2-925f-4421-b914-70bc4c535396/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/aws-c-common/aws_byte_buf_write_be16_harness.i [2022-11-19 07:31:02,992 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a1d70d2-925f-4421-b914-70bc4c535396/bin/utaipan-I9t0OCRTmS/data/46e99fabb/b7f707e832f642adbde0314b4d15de86/FLAG05adac829 [2022-11-19 07:31:03,912 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 07:31:03,912 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a1d70d2-925f-4421-b914-70bc4c535396/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_be16_harness.i [2022-11-19 07:31:03,951 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a1d70d2-925f-4421-b914-70bc4c535396/bin/utaipan-I9t0OCRTmS/data/46e99fabb/b7f707e832f642adbde0314b4d15de86/FLAG05adac829 [2022-11-19 07:31:04,315 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a1d70d2-925f-4421-b914-70bc4c535396/bin/utaipan-I9t0OCRTmS/data/46e99fabb/b7f707e832f642adbde0314b4d15de86 [2022-11-19 07:31:04,318 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 07:31:04,319 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 07:31:04,321 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 07:31:04,321 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 07:31:04,325 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 07:31:04,326 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:31:04" (1/1) ... [2022-11-19 07:31:04,327 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@22000539 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:31:04, skipping insertion in model container [2022-11-19 07:31:04,328 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:31:04" (1/1) ... [2022-11-19 07:31:04,336 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 07:31:04,420 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 07:31:04,711 WARN L234 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_0a1d70d2-925f-4421-b914-70bc4c535396/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_be16_harness.i[4497,4510] [2022-11-19 07:31:04,720 WARN L234 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_0a1d70d2-925f-4421-b914-70bc4c535396/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_be16_harness.i[4557,4570] [2022-11-19 07:31:05,714 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 07:31:05,715 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 07:31:05,715 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 07:31:05,716 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 07:31:05,717 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 07:31:05,731 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 07:31:05,732 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 07:31:05,734 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 07:31:05,734 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 07:31:06,218 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-11-19 07:31:06,227 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-11-19 07:31:06,228 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-11-19 07:31:06,230 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-11-19 07:31:06,237 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-11-19 07:31:06,238 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-11-19 07:31:06,239 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-11-19 07:31:06,240 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-11-19 07:31:06,240 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-11-19 07:31:06,241 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-11-19 07:31:06,407 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-11-19 07:31:06,516 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 07:31:06,517 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 07:31:06,650 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:31:06,722 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 07:31:06,751 WARN L234 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_0a1d70d2-925f-4421-b914-70bc4c535396/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_be16_harness.i[4497,4510] [2022-11-19 07:31:06,752 WARN L234 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_0a1d70d2-925f-4421-b914-70bc4c535396/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_be16_harness.i[4557,4570] [2022-11-19 07:31:06,805 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 07:31:06,805 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 07:31:06,806 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 07:31:06,806 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 07:31:06,807 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 07:31:06,820 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 07:31:06,821 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 07:31:06,822 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 07:31:06,823 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 07:31:06,884 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-11-19 07:31:06,885 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-11-19 07:31:06,886 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-11-19 07:31:06,887 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-11-19 07:31:06,888 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-11-19 07:31:06,889 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-11-19 07:31:06,889 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-11-19 07:31:06,891 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-11-19 07:31:06,891 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-11-19 07:31:06,897 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-11-19 07:31:06,929 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-11-19 07:31:07,019 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 07:31:07,019 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 07:31:07,062 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:31:07,463 INFO L208 MainTranslator]: Completed translation [2022-11-19 07:31:07,463 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:31:07 WrapperNode [2022-11-19 07:31:07,464 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 07:31:07,465 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 07:31:07,465 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 07:31:07,465 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 07:31:07,473 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:31:07" (1/1) ... [2022-11-19 07:31:07,581 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:31:07" (1/1) ... [2022-11-19 07:31:07,685 INFO L138 Inliner]: procedures = 691, calls = 2618, calls flagged for inlining = 62, calls inlined = 10, statements flattened = 865 [2022-11-19 07:31:07,685 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 07:31:07,686 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 07:31:07,686 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 07:31:07,686 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 07:31:07,696 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:31:07" (1/1) ... [2022-11-19 07:31:07,697 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:31:07" (1/1) ... [2022-11-19 07:31:07,704 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:31:07" (1/1) ... [2022-11-19 07:31:07,704 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:31:07" (1/1) ... [2022-11-19 07:31:07,751 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:31:07" (1/1) ... [2022-11-19 07:31:07,770 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:31:07" (1/1) ... [2022-11-19 07:31:07,785 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:31:07" (1/1) ... [2022-11-19 07:31:07,789 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:31:07" (1/1) ... [2022-11-19 07:31:07,836 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 07:31:07,842 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 07:31:07,843 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 07:31:07,843 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 07:31:07,844 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:31:07" (1/1) ... [2022-11-19 07:31:07,853 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 07:31:07,864 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a1d70d2-925f-4421-b914-70bc4c535396/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:31:07,884 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a1d70d2-925f-4421-b914-70bc4c535396/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 07:31:07,910 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a1d70d2-925f-4421-b914-70bc4c535396/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 07:31:07,935 INFO L130 BoogieDeclarations]: Found specification of procedure htons [2022-11-19 07:31:07,936 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_is_valid [2022-11-19 07:31:07,936 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_is_valid [2022-11-19 07:31:07,937 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-19 07:31:07,937 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2022-11-19 07:31:07,938 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2022-11-19 07:31:07,939 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-19 07:31:07,939 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-19 07:31:07,939 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-19 07:31:07,939 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-19 07:31:07,940 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-19 07:31:07,940 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-19 07:31:07,940 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_impl [2022-11-19 07:31:07,940 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_impl [2022-11-19 07:31:07,940 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 07:31:07,941 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 07:31:07,941 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2022-11-19 07:31:07,941 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2022-11-19 07:31:07,941 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2022-11-19 07:31:07,942 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2022-11-19 07:31:07,942 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-19 07:31:07,942 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-19 07:31:07,944 INFO L130 BoogieDeclarations]: Found specification of procedure my_memcpy [2022-11-19 07:31:07,944 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memcpy [2022-11-19 07:31:07,944 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-19 07:31:07,945 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-19 07:31:07,945 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_write [2022-11-19 07:31:07,945 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_write [2022-11-19 07:31:07,945 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-19 07:31:07,945 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2022-11-19 07:31:07,946 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2022-11-19 07:31:07,946 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-19 07:31:07,946 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-19 07:31:08,278 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 07:31:08,280 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 07:31:09,660 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 07:31:10,029 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 07:31:10,030 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-19 07:31:10,033 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:31:10 BoogieIcfgContainer [2022-11-19 07:31:10,033 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 07:31:10,038 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 07:31:10,038 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 07:31:10,042 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 07:31:10,042 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:31:04" (1/3) ... [2022-11-19 07:31:10,043 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5bb38ab3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:31:10, skipping insertion in model container [2022-11-19 07:31:10,043 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:31:07" (2/3) ... [2022-11-19 07:31:10,043 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5bb38ab3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:31:10, skipping insertion in model container [2022-11-19 07:31:10,043 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:31:10" (3/3) ... [2022-11-19 07:31:10,045 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_byte_buf_write_be16_harness.i [2022-11-19 07:31:10,064 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 07:31:10,065 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-19 07:31:10,117 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 07:31:10,124 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@7f920f30, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 07:31:10,124 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-19 07:31:10,129 INFO L276 IsEmpty]: Start isEmpty. Operand has 98 states, 52 states have (on average 1.1923076923076923) internal successors, (62), 53 states have internal predecessors, (62), 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) [2022-11-19 07:31:10,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2022-11-19 07:31:10,138 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:31:10,139 INFO L195 NwaCegarLoop]: 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] [2022-11-19 07:31:10,140 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:31:10,145 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:31:10,145 INFO L85 PathProgramCache]: Analyzing trace with hash 1503298337, now seen corresponding path program 1 times [2022-11-19 07:31:10,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:31:10,156 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1039178141] [2022-11-19 07:31:10,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:31:10,157 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:31:14,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:31:28,991 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 4 proven. 6 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-11-19 07:31:28,992 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:31:28,992 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1039178141] [2022-11-19 07:31:28,993 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1039178141] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 07:31:28,993 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [182207276] [2022-11-19 07:31:28,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:31:28,994 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:31:28,994 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a1d70d2-925f-4421-b914-70bc4c535396/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:31:29,001 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a1d70d2-925f-4421-b914-70bc4c535396/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:31:29,021 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a1d70d2-925f-4421-b914-70bc4c535396/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-19 07:31:29,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:31:29,779 INFO L263 TraceCheckSpWp]: Trace formula consists of 2601 conjuncts, 153 conjunts are in the unsatisfiable core [2022-11-19 07:31:29,811 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:31:30,269 INFO L350 Elim1Store]: Elim1 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 13 treesize of output 9 [2022-11-19 07:31:30,276 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-19 07:31:34,169 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:34,174 INFO L350 Elim1Store]: Elim1 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 22 treesize of output 21 [2022-11-19 07:31:34,192 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:34,207 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-19 07:31:34,208 INFO L350 Elim1Store]: Elim1 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 1 case distinctions, treesize of input 34 treesize of output 40 [2022-11-19 07:31:40,790 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:40,791 INFO L350 Elim1Store]: Elim1 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 22 treesize of output 21 [2022-11-19 07:31:40,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:40,817 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-19 07:31:40,818 INFO L350 Elim1Store]: Elim1 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 1 case distinctions, treesize of input 47 treesize of output 49 [2022-11-19 07:31:56,174 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 14 proven. 24 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-19 07:31:56,175 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 07:31:59,120 WARN L176 XnfTransformerHelper]: Simplifying conjuction of 76449 disjunctions. This might take some time... [2022-11-19 07:40:26,674 INFO L192 XnfTransformerHelper]: Simplified to conjuction of 76449 disjunctions.