./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_byte_buf_eq_c_str_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4e7fbc69 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0dde45b-6d4d-4d91-b512-fb02b495aea2/bin/utaipan-Q6hlc19bkW/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0dde45b-6d4d-4d91-b512-fb02b495aea2/bin/utaipan-Q6hlc19bkW/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0dde45b-6d4d-4d91-b512-fb02b495aea2/bin/utaipan-Q6hlc19bkW/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0dde45b-6d4d-4d91-b512-fb02b495aea2/bin/utaipan-Q6hlc19bkW/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_buf_eq_c_str_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0dde45b-6d4d-4d91-b512-fb02b495aea2/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0dde45b-6d4d-4d91-b512-fb02b495aea2/bin/utaipan-Q6hlc19bkW --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 9e4ccc391c063e90fb229c8b3638d2f1089d6ba2ff288522cf06bf650b1be9e5 --- 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-4e7fbc6 [2022-11-23 14:04:55,804 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 14:04:55,807 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 14:04:55,846 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 14:04:55,847 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 14:04:55,848 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 14:04:55,849 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 14:04:55,851 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 14:04:55,853 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 14:04:55,854 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 14:04:55,862 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 14:04:55,866 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 14:04:55,866 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 14:04:55,873 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 14:04:55,876 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 14:04:55,877 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 14:04:55,877 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 14:04:55,878 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 14:04:55,880 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 14:04:55,882 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 14:04:55,883 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 14:04:55,888 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 14:04:55,891 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 14:04:55,892 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 14:04:55,906 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 14:04:55,906 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 14:04:55,906 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 14:04:55,907 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 14:04:55,907 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 14:04:55,908 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 14:04:55,909 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 14:04:55,909 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 14:04:55,910 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 14:04:55,911 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 14:04:55,912 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 14:04:55,912 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 14:04:55,913 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 14:04:55,913 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 14:04:55,913 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 14:04:55,914 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 14:04:55,918 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 14:04:55,920 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0dde45b-6d4d-4d91-b512-fb02b495aea2/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-23 14:04:55,966 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 14:04:55,969 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 14:04:55,970 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 14:04:55,970 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 14:04:55,971 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 14:04:55,971 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 14:04:55,971 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-23 14:04:55,972 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-23 14:04:55,972 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-23 14:04:55,972 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-23 14:04:55,973 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-23 14:04:55,974 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-23 14:04:55,974 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-23 14:04:55,974 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-23 14:04:55,974 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-23 14:04:55,975 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-23 14:04:55,975 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-23 14:04:55,975 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-23 14:04:55,976 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 14:04:55,976 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 14:04:55,976 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 14:04:55,977 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 14:04:55,977 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 14:04:55,977 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 14:04:55,977 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 14:04:55,977 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 14:04:55,978 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 14:04:55,978 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 14:04:55,978 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 14:04:55,978 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 14:04:55,979 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 14:04:55,979 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-23 14:04:55,979 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 14:04:55,979 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 14:04:55,980 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-23 14:04:55,980 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 14:04:55,980 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 14:04:55,980 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-23 14:04:55,980 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_b0dde45b-6d4d-4d91-b512-fb02b495aea2/bin/utaipan-Q6hlc19bkW/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0dde45b-6d4d-4d91-b512-fb02b495aea2/bin/utaipan-Q6hlc19bkW Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9e4ccc391c063e90fb229c8b3638d2f1089d6ba2ff288522cf06bf650b1be9e5 [2022-11-23 14:04:56,282 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 14:04:56,317 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 14:04:56,320 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 14:04:56,321 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 14:04:56,321 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 14:04:56,323 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0dde45b-6d4d-4d91-b512-fb02b495aea2/bin/utaipan-Q6hlc19bkW/../../sv-benchmarks/c/aws-c-common/aws_byte_buf_eq_c_str_harness.i [2022-11-23 14:04:59,900 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 14:05:00,588 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 14:05:00,588 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0dde45b-6d4d-4d91-b512-fb02b495aea2/sv-benchmarks/c/aws-c-common/aws_byte_buf_eq_c_str_harness.i [2022-11-23 14:05:00,649 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0dde45b-6d4d-4d91-b512-fb02b495aea2/bin/utaipan-Q6hlc19bkW/data/1d58edece/d1a794bad9764f3f90306b0033efe044/FLAGa00a2b5b8 [2022-11-23 14:05:00,670 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0dde45b-6d4d-4d91-b512-fb02b495aea2/bin/utaipan-Q6hlc19bkW/data/1d58edece/d1a794bad9764f3f90306b0033efe044 [2022-11-23 14:05:00,676 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 14:05:00,679 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 14:05:00,682 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 14:05:00,682 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 14:05:00,686 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 14:05:00,688 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:05:00" (1/1) ... [2022-11-23 14:05:00,689 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3dc1afe6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:05:00, skipping insertion in model container [2022-11-23 14:05:00,689 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:05:00" (1/1) ... [2022-11-23 14:05:00,699 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 14:05:00,859 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 14:05:01,232 WARN L237 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_b0dde45b-6d4d-4d91-b512-fb02b495aea2/sv-benchmarks/c/aws-c-common/aws_byte_buf_eq_c_str_harness.i[4495,4508] [2022-11-23 14:05:01,245 WARN L237 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_b0dde45b-6d4d-4d91-b512-fb02b495aea2/sv-benchmarks/c/aws-c-common/aws_byte_buf_eq_c_str_harness.i[4555,4568] [2022-11-23 14:05:02,507 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-23 14:05:02,508 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-23 14:05:02,509 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-23 14:05:02,510 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-23 14:05:02,512 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-23 14:05:02,530 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-23 14:05:02,531 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-23 14:05:02,534 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-23 14:05:02,535 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-23 14:05:03,085 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-11-23 14:05:03,087 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-11-23 14:05:03,088 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-11-23 14:05:03,090 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-11-23 14:05:03,092 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-11-23 14:05:03,093 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-11-23 14:05:03,094 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-11-23 14:05:03,095 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-11-23 14:05:03,096 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-11-23 14:05:03,097 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-11-23 14:05:03,323 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-11-23 14:05:03,438 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-23 14:05:03,438 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-23 14:05:03,553 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 14:05:03,627 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 14:05:03,657 WARN L237 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_b0dde45b-6d4d-4d91-b512-fb02b495aea2/sv-benchmarks/c/aws-c-common/aws_byte_buf_eq_c_str_harness.i[4495,4508] [2022-11-23 14:05:03,665 WARN L237 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_b0dde45b-6d4d-4d91-b512-fb02b495aea2/sv-benchmarks/c/aws-c-common/aws_byte_buf_eq_c_str_harness.i[4555,4568] [2022-11-23 14:05:03,744 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-23 14:05:03,744 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-23 14:05:03,745 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-23 14:05:03,753 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-23 14:05:03,756 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-23 14:05:03,763 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-23 14:05:03,771 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-23 14:05:03,776 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-23 14:05:03,776 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-23 14:05:03,850 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-11-23 14:05:03,851 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-11-23 14:05:03,852 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-11-23 14:05:03,853 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-11-23 14:05:03,857 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-11-23 14:05:03,858 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-11-23 14:05:03,858 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-11-23 14:05:03,859 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-11-23 14:05:03,860 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-11-23 14:05:03,860 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-11-23 14:05:03,903 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-11-23 14:05:04,083 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-23 14:05:04,083 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-23 14:05:04,136 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 14:05:04,491 INFO L208 MainTranslator]: Completed translation [2022-11-23 14:05:04,492 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:05:04 WrapperNode [2022-11-23 14:05:04,492 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 14:05:04,494 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 14:05:04,494 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 14:05:04,494 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 14:05:04,503 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:05:04" (1/1) ... [2022-11-23 14:05:04,621 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:05:04" (1/1) ... [2022-11-23 14:05:04,696 INFO L138 Inliner]: procedures = 691, calls = 2638, calls flagged for inlining = 64, calls inlined = 10, statements flattened = 899 [2022-11-23 14:05:04,696 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 14:05:04,697 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 14:05:04,697 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 14:05:04,697 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 14:05:04,709 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:05:04" (1/1) ... [2022-11-23 14:05:04,710 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:05:04" (1/1) ... [2022-11-23 14:05:04,728 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:05:04" (1/1) ... [2022-11-23 14:05:04,728 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:05:04" (1/1) ... [2022-11-23 14:05:04,765 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:05:04" (1/1) ... [2022-11-23 14:05:04,771 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:05:04" (1/1) ... [2022-11-23 14:05:04,777 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:05:04" (1/1) ... [2022-11-23 14:05:04,782 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:05:04" (1/1) ... [2022-11-23 14:05:04,793 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 14:05:04,794 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 14:05:04,794 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 14:05:04,794 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 14:05:04,795 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:05:04" (1/1) ... [2022-11-23 14:05:04,803 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 14:05:04,817 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0dde45b-6d4d-4d91-b512-fb02b495aea2/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:05:04,834 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0dde45b-6d4d-4d91-b512-fb02b495aea2/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 14:05:04,875 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0dde45b-6d4d-4d91-b512-fb02b495aea2/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 14:05:04,905 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_eq_c_str [2022-11-23 14:05:04,905 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_eq_c_str [2022-11-23 14:05:04,905 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_is_valid [2022-11-23 14:05:04,906 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_is_valid [2022-11-23 14:05:04,907 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-23 14:05:04,907 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2022-11-23 14:05:04,908 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2022-11-23 14:05:04,908 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-23 14:05:04,908 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-23 14:05:04,909 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-23 14:05:04,909 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-23 14:05:04,909 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 14:05:04,910 INFO L130 BoogieDeclarations]: Found specification of procedure save_byte_from_array [2022-11-23 14:05:04,910 INFO L138 BoogieDeclarations]: Found implementation of procedure save_byte_from_array [2022-11-23 14:05:04,910 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-23 14:05:04,911 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 14:05:04,911 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 14:05:04,912 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2022-11-23 14:05:04,912 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2022-11-23 14:05:04,912 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2022-11-23 14:05:04,913 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2022-11-23 14:05:04,913 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-23 14:05:04,913 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-23 14:05:04,913 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-23 14:05:04,913 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-23 14:05:04,913 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-23 14:05:04,915 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2022-11-23 14:05:04,915 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2022-11-23 14:05:04,915 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2022-11-23 14:05:04,916 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2022-11-23 14:05:04,916 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-23 14:05:04,916 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-23 14:05:05,290 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 14:05:05,309 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 14:05:07,215 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 14:05:07,592 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 14:05:07,593 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-23 14:05:07,596 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:05:07 BoogieIcfgContainer [2022-11-23 14:05:07,596 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 14:05:07,600 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 14:05:07,600 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 14:05:07,605 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 14:05:07,605 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:05:00" (1/3) ... [2022-11-23 14:05:07,608 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13444cfa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:05:07, skipping insertion in model container [2022-11-23 14:05:07,608 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:05:04" (2/3) ... [2022-11-23 14:05:07,610 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13444cfa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:05:07, skipping insertion in model container [2022-11-23 14:05:07,611 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:05:07" (3/3) ... [2022-11-23 14:05:07,613 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_byte_buf_eq_c_str_harness.i [2022-11-23 14:05:07,639 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 14:05:07,639 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-23 14:05:07,727 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 14:05:07,743 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;@186d437f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 14:05:07,743 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-23 14:05:07,752 INFO L276 IsEmpty]: Start isEmpty. Operand has 108 states, 60 states have (on average 1.2333333333333334) internal successors, (74), 62 states have internal predecessors, (74), 36 states have call successors, (36), 10 states have call predecessors, (36), 10 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2022-11-23 14:05:07,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-11-23 14:05:07,768 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:05:07,769 INFO L195 NwaCegarLoop]: trace histogram [10, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:05:07,769 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:05:07,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:05:07,779 INFO L85 PathProgramCache]: Analyzing trace with hash 635743890, now seen corresponding path program 1 times [2022-11-23 14:05:07,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:05:07,793 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [703477646] [2022-11-23 14:05:07,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:05:07,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:05:10,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:05:29,151 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 16 proven. 9 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2022-11-23 14:05:29,152 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:05:29,152 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [703477646] [2022-11-23 14:05:29,153 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [703477646] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 14:05:29,153 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [400454906] [2022-11-23 14:05:29,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:05:29,154 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 14:05:29,154 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0dde45b-6d4d-4d91-b512-fb02b495aea2/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:05:29,158 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0dde45b-6d4d-4d91-b512-fb02b495aea2/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 14:05:29,179 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0dde45b-6d4d-4d91-b512-fb02b495aea2/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-23 14:05:30,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:05:30,164 INFO L263 TraceCheckSpWp]: Trace formula consists of 2702 conjuncts, 122 conjunts are in the unsatisfiable core [2022-11-23 14:05:30,193 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:05:31,297 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 [2022-11-23 14:05:31,311 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 [2022-11-23 14:05:42,282 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-23 14:05:42,283 INFO L350 Elim1Store]: Elim1 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 99 treesize of output 75 [2022-11-23 14:05:42,350 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-23 14:05:42,350 INFO L350 Elim1Store]: Elim1 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 [2022-11-23 14:05:42,659 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 12 proven. 57 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2022-11-23 14:05:42,659 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 14:05:45,831 WARN L176 XnfTransformerHelper]: Simplifying conjuction of 76449 disjunctions. This might take some time... [2022-11-23 14:14:17,915 INFO L192 XnfTransformerHelper]: Simplified to conjuction of 76449 disjunctions.