./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_byte_buf_write_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5e519f3a 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_e490fd87-f5a6-4d1c-8079-73dd720b59a3/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e490fd87-f5a6-4d1c-8079-73dd720b59a3/bin/utaipan-7li7fVZpFI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e490fd87-f5a6-4d1c-8079-73dd720b59a3/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e490fd87-f5a6-4d1c-8079-73dd720b59a3/bin/utaipan-7li7fVZpFI/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_buf_write_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e490fd87-f5a6-4d1c-8079-73dd720b59a3/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e490fd87-f5a6-4d1c-8079-73dd720b59a3/bin/utaipan-7li7fVZpFI --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 884fded8e66f5d1fb48ea41b5fc2a80efc48c733a21e019f076525ed24611a3d --- 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-5e519f3 [2022-11-03 04:05:23,856 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 04:05:23,858 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 04:05:23,882 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 04:05:23,883 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 04:05:23,884 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 04:05:23,885 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 04:05:23,887 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 04:05:23,889 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 04:05:23,890 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 04:05:23,891 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 04:05:23,892 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 04:05:23,892 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 04:05:23,893 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 04:05:23,894 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 04:05:23,896 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 04:05:23,896 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 04:05:23,897 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 04:05:23,899 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 04:05:23,901 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 04:05:23,902 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 04:05:23,904 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 04:05:23,905 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 04:05:23,906 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 04:05:23,910 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 04:05:23,911 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 04:05:23,911 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 04:05:23,912 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 04:05:23,915 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 04:05:23,916 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 04:05:23,917 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 04:05:23,918 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 04:05:23,919 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 04:05:23,921 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 04:05:23,922 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 04:05:23,923 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 04:05:23,924 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 04:05:23,924 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 04:05:23,924 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 04:05:23,925 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 04:05:23,926 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 04:05:23,928 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e490fd87-f5a6-4d1c-8079-73dd720b59a3/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-03 04:05:23,970 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 04:05:23,970 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 04:05:23,971 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 04:05:23,971 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 04:05:23,972 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 04:05:23,973 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 04:05:23,973 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 04:05:23,973 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 04:05:23,973 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 04:05:23,974 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-03 04:05:23,975 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 04:05:23,975 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 04:05:23,975 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-03 04:05:23,976 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-03 04:05:23,976 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 04:05:23,976 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-03 04:05:23,976 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-03 04:05:23,977 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-03 04:05:23,978 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 04:05:23,978 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-03 04:05:23,978 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 04:05:23,978 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-03 04:05:23,979 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 04:05:23,979 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-03 04:05:23,979 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-03 04:05:23,979 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 04:05:23,980 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-03 04:05:23,980 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 04:05:23,980 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 04:05:23,981 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 04:05:23,981 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 04:05:23,981 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-03 04:05:23,982 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 04:05:23,982 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-03 04:05:23,982 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-03 04:05:23,983 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-03 04:05:23,983 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-03 04:05:23,983 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 04:05:23,990 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_e490fd87-f5a6-4d1c-8079-73dd720b59a3/bin/utaipan-7li7fVZpFI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e490fd87-f5a6-4d1c-8079-73dd720b59a3/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 884fded8e66f5d1fb48ea41b5fc2a80efc48c733a21e019f076525ed24611a3d [2022-11-03 04:05:24,293 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 04:05:24,315 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 04:05:24,317 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 04:05:24,319 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 04:05:24,320 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 04:05:24,321 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e490fd87-f5a6-4d1c-8079-73dd720b59a3/bin/utaipan-7li7fVZpFI/../../sv-benchmarks/c/aws-c-common/aws_byte_buf_write_harness.i [2022-11-03 04:05:24,402 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e490fd87-f5a6-4d1c-8079-73dd720b59a3/bin/utaipan-7li7fVZpFI/data/5a48aaf69/540fb42617504828b685e5d7f1462d07/FLAGf387ff9fd [2022-11-03 04:05:25,267 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 04:05:25,268 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e490fd87-f5a6-4d1c-8079-73dd720b59a3/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_harness.i [2022-11-03 04:05:25,299 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e490fd87-f5a6-4d1c-8079-73dd720b59a3/bin/utaipan-7li7fVZpFI/data/5a48aaf69/540fb42617504828b685e5d7f1462d07/FLAGf387ff9fd [2022-11-03 04:05:25,734 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e490fd87-f5a6-4d1c-8079-73dd720b59a3/bin/utaipan-7li7fVZpFI/data/5a48aaf69/540fb42617504828b685e5d7f1462d07 [2022-11-03 04:05:25,737 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 04:05:25,744 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 04:05:25,747 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 04:05:25,747 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 04:05:25,750 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 04:05:25,752 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:05:25" (1/1) ... [2022-11-03 04:05:25,754 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@694a2871 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:05:25, skipping insertion in model container [2022-11-03 04:05:25,754 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:05:25" (1/1) ... [2022-11-03 04:05:25,761 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 04:05:25,879 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 04:05:26,217 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_e490fd87-f5a6-4d1c-8079-73dd720b59a3/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_harness.i[4492,4505] [2022-11-03 04:05:26,227 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_e490fd87-f5a6-4d1c-8079-73dd720b59a3/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_harness.i[4552,4565] [2022-11-03 04:05:27,180 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 04:05:27,181 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 04:05:27,181 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 04:05:27,182 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 04:05:27,184 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 04:05:27,198 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 04:05:27,198 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 04:05:27,200 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 04:05:27,201 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 04:05:27,630 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-11-03 04:05:27,631 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-11-03 04:05:27,633 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-11-03 04:05:27,634 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-11-03 04:05:27,638 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-11-03 04:05:27,639 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-11-03 04:05:27,643 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-11-03 04:05:27,644 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-11-03 04:05:27,646 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-11-03 04:05:27,648 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-11-03 04:05:27,822 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-11-03 04:05:27,954 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 04:05:27,954 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 04:05:28,031 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 04:05:28,079 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 04:05:28,093 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_e490fd87-f5a6-4d1c-8079-73dd720b59a3/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_harness.i[4492,4505] [2022-11-03 04:05:28,094 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_e490fd87-f5a6-4d1c-8079-73dd720b59a3/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_harness.i[4552,4565] [2022-11-03 04:05:28,141 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 04:05:28,142 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 04:05:28,143 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 04:05:28,143 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 04:05:28,144 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 04:05:28,151 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 04:05:28,152 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 04:05:28,153 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 04:05:28,153 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 04:05:28,209 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-11-03 04:05:28,211 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-11-03 04:05:28,212 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-11-03 04:05:28,213 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-11-03 04:05:28,213 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-11-03 04:05:28,214 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-11-03 04:05:28,217 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-11-03 04:05:28,220 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-11-03 04:05:28,220 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-11-03 04:05:28,221 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-11-03 04:05:28,252 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-11-03 04:05:28,341 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 04:05:28,342 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 04:05:28,418 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 04:05:28,726 INFO L208 MainTranslator]: Completed translation [2022-11-03 04:05:28,727 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:05:28 WrapperNode [2022-11-03 04:05:28,727 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 04:05:28,728 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 04:05:28,728 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 04:05:28,728 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 04:05:28,736 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:05:28" (1/1) ... [2022-11-03 04:05:28,858 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:05:28" (1/1) ... [2022-11-03 04:05:28,950 INFO L138 Inliner]: procedures = 690, calls = 2637, calls flagged for inlining = 61, calls inlined = 8, statements flattened = 871 [2022-11-03 04:05:28,951 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 04:05:28,952 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 04:05:28,952 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 04:05:28,952 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 04:05:28,963 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:05:28" (1/1) ... [2022-11-03 04:05:28,963 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:05:28" (1/1) ... [2022-11-03 04:05:28,971 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:05:28" (1/1) ... [2022-11-03 04:05:28,972 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:05:28" (1/1) ... [2022-11-03 04:05:29,003 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:05:28" (1/1) ... [2022-11-03 04:05:29,007 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:05:28" (1/1) ... [2022-11-03 04:05:29,014 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:05:28" (1/1) ... [2022-11-03 04:05:29,018 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:05:28" (1/1) ... [2022-11-03 04:05:29,027 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 04:05:29,028 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 04:05:29,028 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 04:05:29,028 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 04:05:29,029 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:05:28" (1/1) ... [2022-11-03 04:05:29,036 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 04:05:29,048 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e490fd87-f5a6-4d1c-8079-73dd720b59a3/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 04:05:29,061 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e490fd87-f5a6-4d1c-8079-73dd720b59a3/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 04:05:29,074 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e490fd87-f5a6-4d1c-8079-73dd720b59a3/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 04:05:29,113 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_is_valid [2022-11-03 04:05:29,114 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_is_valid [2022-11-03 04:05:29,114 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-03 04:05:29,115 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2022-11-03 04:05:29,115 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2022-11-03 04:05:29,116 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real [2022-11-03 04:05:29,117 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-03 04:05:29,117 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-03 04:05:29,117 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-03 04:05:29,117 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-03 04:05:29,118 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-03 04:05:29,118 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-03 04:05:29,118 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-03 04:05:29,119 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-03 04:05:29,119 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-03 04:05:29,119 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-03 04:05:29,119 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 04:05:29,119 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 04:05:29,119 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2022-11-03 04:05:29,124 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2022-11-03 04:05:29,124 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2022-11-03 04:05:29,124 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2022-11-03 04:05:29,124 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-03 04:05:29,124 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-03 04:05:29,125 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-03 04:05:29,125 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-03 04:05:29,125 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-03 04:05:29,125 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-03 04:05:29,125 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_write [2022-11-03 04:05:29,125 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_write [2022-11-03 04:05:29,125 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-03 04:05:29,125 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2022-11-03 04:05:29,126 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2022-11-03 04:05:29,126 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2022-11-03 04:05:29,126 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2022-11-03 04:05:29,126 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-03 04:05:29,126 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~real [2022-11-03 04:05:29,126 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-03 04:05:29,429 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 04:05:29,446 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 04:05:30,968 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 04:05:31,218 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 04:05:31,218 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-03 04:05:31,222 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 04:05:31 BoogieIcfgContainer [2022-11-03 04:05:31,223 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 04:05:31,225 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 04:05:31,226 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 04:05:31,229 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 04:05:31,230 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 04:05:25" (1/3) ... [2022-11-03 04:05:31,230 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3373b688 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 04:05:31, skipping insertion in model container [2022-11-03 04:05:31,230 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:05:28" (2/3) ... [2022-11-03 04:05:31,232 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3373b688 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 04:05:31, skipping insertion in model container [2022-11-03 04:05:31,232 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 04:05:31" (3/3) ... [2022-11-03 04:05:31,237 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_byte_buf_write_harness.i [2022-11-03 04:05:31,255 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 04:05:31,256 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-03 04:05:31,310 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 04:05:31,317 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;@740377d7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 04:05:31,317 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-03 04:05:31,321 INFO L276 IsEmpty]: Start isEmpty. Operand has 99 states, 55 states have (on average 1.2363636363636363) internal successors, (68), 56 states have internal predecessors, (68), 32 states have call successors, (32), 10 states have call predecessors, (32), 10 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2022-11-03 04:05:31,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-11-03 04:05:31,330 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:05:31,331 INFO L195 NwaCegarLoop]: trace histogram [5, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:05:31,332 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:05:31,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:05:31,337 INFO L85 PathProgramCache]: Analyzing trace with hash 1678221370, now seen corresponding path program 1 times [2022-11-03 04:05:31,347 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:05:31,347 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1263656207] [2022-11-03 04:05:31,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:05:31,348 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:05:33,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:05:45,042 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-11-03 04:05:45,043 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:05:45,043 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1263656207] [2022-11-03 04:05:45,043 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1263656207] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 04:05:45,044 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1419248579] [2022-11-03 04:05:45,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:05:45,044 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 04:05:45,044 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e490fd87-f5a6-4d1c-8079-73dd720b59a3/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 04:05:45,047 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e490fd87-f5a6-4d1c-8079-73dd720b59a3/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 04:05:45,068 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e490fd87-f5a6-4d1c-8079-73dd720b59a3/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-03 04:05:45,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:05:45,712 INFO L263 TraceCheckSpWp]: Trace formula consists of 2544 conjuncts, 100 conjunts are in the unsatisfiable core [2022-11-03 04:05:45,730 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:05:46,233 INFO L390 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 6 treesize of output 5 [2022-11-03 04:05:46,239 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:05:53,156 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 04:05:53,156 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 80 treesize of output 64 [2022-11-03 04:05:53,211 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 04:05:53,211 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 17 [2022-11-03 04:05:53,422 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 8 proven. 16 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-03 04:05:53,422 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:05:56,035 WARN L176 XnfTransformerHelper]: Simplifying conjuction of 76449 disjunctions. This might take some time... [2022-11-03 04:13:27,857 INFO L192 XnfTransformerHelper]: Simplified to conjuction of 76449 disjunctions.