./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_byte_buf_append_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b5237d83 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_08ee2c38-31a9-4afb-b2b0-1ae6b120ffb1/bin/utaipan-g80aRyZoba/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08ee2c38-31a9-4afb-b2b0-1ae6b120ffb1/bin/utaipan-g80aRyZoba/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08ee2c38-31a9-4afb-b2b0-1ae6b120ffb1/bin/utaipan-g80aRyZoba/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08ee2c38-31a9-4afb-b2b0-1ae6b120ffb1/bin/utaipan-g80aRyZoba/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_buf_append_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08ee2c38-31a9-4afb-b2b0-1ae6b120ffb1/bin/utaipan-g80aRyZoba/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08ee2c38-31a9-4afb-b2b0-1ae6b120ffb1/bin/utaipan-g80aRyZoba --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 aad159acc9cbece9fe1ce64619aff83e5e3477bbd84af6f399f8d36d8b5384a2 --- 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-b5237d8 [2022-11-22 02:11:15,940 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-22 02:11:15,943 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-22 02:11:15,987 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-22 02:11:15,987 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-22 02:11:15,991 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-22 02:11:15,993 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-22 02:11:15,996 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-22 02:11:15,998 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-22 02:11:16,001 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-22 02:11:16,003 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-22 02:11:16,005 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-22 02:11:16,005 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-22 02:11:16,011 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-22 02:11:16,013 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-22 02:11:16,014 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-22 02:11:16,015 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-22 02:11:16,016 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-22 02:11:16,018 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-22 02:11:16,023 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-22 02:11:16,025 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-22 02:11:16,028 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-22 02:11:16,029 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-22 02:11:16,030 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-22 02:11:16,040 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-22 02:11:16,042 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-22 02:11:16,042 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-22 02:11:16,043 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-22 02:11:16,045 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-22 02:11:16,046 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-22 02:11:16,047 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-22 02:11:16,047 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-22 02:11:16,049 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-22 02:11:16,051 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-22 02:11:16,051 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-22 02:11:16,052 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-22 02:11:16,052 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-22 02:11:16,053 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-22 02:11:16,053 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-22 02:11:16,054 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-22 02:11:16,054 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-22 02:11:16,055 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08ee2c38-31a9-4afb-b2b0-1ae6b120ffb1/bin/utaipan-g80aRyZoba/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-22 02:11:16,085 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-22 02:11:16,088 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-22 02:11:16,088 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-22 02:11:16,089 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-22 02:11:16,090 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-22 02:11:16,090 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-22 02:11:16,090 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-22 02:11:16,090 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-22 02:11:16,091 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-22 02:11:16,091 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-22 02:11:16,092 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-22 02:11:16,092 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-22 02:11:16,092 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-22 02:11:16,093 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-22 02:11:16,093 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-22 02:11:16,093 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-22 02:11:16,093 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-22 02:11:16,094 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-22 02:11:16,094 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-22 02:11:16,095 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-22 02:11:16,095 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-22 02:11:16,095 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-22 02:11:16,095 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-22 02:11:16,096 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-22 02:11:16,096 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-22 02:11:16,096 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-22 02:11:16,096 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-22 02:11:16,096 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-22 02:11:16,097 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-22 02:11:16,097 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 02:11:16,097 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-22 02:11:16,098 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-22 02:11:16,098 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-22 02:11:16,098 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-22 02:11:16,098 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-22 02:11:16,099 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-22 02:11:16,099 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-22 02:11:16,099 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-22 02:11:16,099 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_08ee2c38-31a9-4afb-b2b0-1ae6b120ffb1/bin/utaipan-g80aRyZoba/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08ee2c38-31a9-4afb-b2b0-1ae6b120ffb1/bin/utaipan-g80aRyZoba Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> aad159acc9cbece9fe1ce64619aff83e5e3477bbd84af6f399f8d36d8b5384a2 [2022-11-22 02:11:16,395 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-22 02:11:16,438 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-22 02:11:16,440 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-22 02:11:16,442 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-22 02:11:16,442 INFO L275 PluginConnector]: CDTParser initialized [2022-11-22 02:11:16,443 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08ee2c38-31a9-4afb-b2b0-1ae6b120ffb1/bin/utaipan-g80aRyZoba/../../sv-benchmarks/c/aws-c-common/aws_byte_buf_append_harness.i [2022-11-22 02:11:19,628 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-22 02:11:20,185 INFO L351 CDTParser]: Found 1 translation units. [2022-11-22 02:11:20,186 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08ee2c38-31a9-4afb-b2b0-1ae6b120ffb1/sv-benchmarks/c/aws-c-common/aws_byte_buf_append_harness.i [2022-11-22 02:11:20,236 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08ee2c38-31a9-4afb-b2b0-1ae6b120ffb1/bin/utaipan-g80aRyZoba/data/9456667a0/6aafb314906c4ce2a9036c0e0e517349/FLAGc9eb7dee6 [2022-11-22 02:11:20,257 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08ee2c38-31a9-4afb-b2b0-1ae6b120ffb1/bin/utaipan-g80aRyZoba/data/9456667a0/6aafb314906c4ce2a9036c0e0e517349 [2022-11-22 02:11:20,260 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-22 02:11:20,262 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-22 02:11:20,264 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-22 02:11:20,264 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-22 02:11:20,269 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-22 02:11:20,271 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:11:20" (1/1) ... [2022-11-22 02:11:20,272 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e6037d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:11:20, skipping insertion in model container [2022-11-22 02:11:20,272 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:11:20" (1/1) ... [2022-11-22 02:11:20,280 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-22 02:11:20,428 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-22 02:11:20,771 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_08ee2c38-31a9-4afb-b2b0-1ae6b120ffb1/sv-benchmarks/c/aws-c-common/aws_byte_buf_append_harness.i[4493,4506] [2022-11-22 02:11:20,780 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_08ee2c38-31a9-4afb-b2b0-1ae6b120ffb1/sv-benchmarks/c/aws-c-common/aws_byte_buf_append_harness.i[4553,4566] [2022-11-22 02:11:21,965 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 02:11:21,966 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 02:11:21,967 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 02:11:21,968 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 02:11:21,970 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 02:11:21,985 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 02:11:21,986 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 02:11:21,988 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 02:11:21,989 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 02:11:22,573 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-11-22 02:11:22,575 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-11-22 02:11:22,576 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-11-22 02:11:22,577 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-11-22 02:11:22,579 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-11-22 02:11:22,580 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-11-22 02:11:22,581 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-11-22 02:11:22,582 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-11-22 02:11:22,583 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-11-22 02:11:22,584 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-11-22 02:11:22,814 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-11-22 02:11:23,023 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 02:11:23,030 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 02:11:23,139 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 02:11:23,212 INFO L203 MainTranslator]: Completed pre-run [2022-11-22 02:11:23,244 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_08ee2c38-31a9-4afb-b2b0-1ae6b120ffb1/sv-benchmarks/c/aws-c-common/aws_byte_buf_append_harness.i[4493,4506] [2022-11-22 02:11:23,245 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_08ee2c38-31a9-4afb-b2b0-1ae6b120ffb1/sv-benchmarks/c/aws-c-common/aws_byte_buf_append_harness.i[4553,4566] [2022-11-22 02:11:23,297 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 02:11:23,298 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 02:11:23,298 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 02:11:23,299 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 02:11:23,300 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 02:11:23,318 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 02:11:23,321 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 02:11:23,322 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 02:11:23,323 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 02:11:23,375 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-11-22 02:11:23,376 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-11-22 02:11:23,376 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-11-22 02:11:23,380 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-11-22 02:11:23,381 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-11-22 02:11:23,382 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-11-22 02:11:23,382 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-11-22 02:11:23,383 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-11-22 02:11:23,383 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-11-22 02:11:23,389 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-11-22 02:11:23,420 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-11-22 02:11:23,508 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 02:11:23,508 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 02:11:23,551 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 02:11:23,906 INFO L208 MainTranslator]: Completed translation [2022-11-22 02:11:23,907 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:11:23 WrapperNode [2022-11-22 02:11:23,907 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-22 02:11:23,908 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-22 02:11:23,908 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-22 02:11:23,909 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-22 02:11:23,917 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:11:23" (1/1) ... [2022-11-22 02:11:24,064 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:11:23" (1/1) ... [2022-11-22 02:11:24,173 INFO L138 Inliner]: procedures = 691, calls = 2642, calls flagged for inlining = 60, calls inlined = 8, statements flattened = 858 [2022-11-22 02:11:24,177 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-22 02:11:24,177 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-22 02:11:24,178 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-22 02:11:24,178 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-22 02:11:24,188 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:11:23" (1/1) ... [2022-11-22 02:11:24,188 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:11:23" (1/1) ... [2022-11-22 02:11:24,204 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:11:23" (1/1) ... [2022-11-22 02:11:24,205 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:11:23" (1/1) ... [2022-11-22 02:11:24,275 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:11:23" (1/1) ... [2022-11-22 02:11:24,280 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:11:23" (1/1) ... [2022-11-22 02:11:24,286 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:11:23" (1/1) ... [2022-11-22 02:11:24,291 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:11:23" (1/1) ... [2022-11-22 02:11:24,300 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-22 02:11:24,301 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-22 02:11:24,301 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-22 02:11:24,301 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-22 02:11:24,302 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:11:23" (1/1) ... [2022-11-22 02:11:24,308 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 02:11:24,329 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08ee2c38-31a9-4afb-b2b0-1ae6b120ffb1/bin/utaipan-g80aRyZoba/z3 [2022-11-22 02:11:24,351 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08ee2c38-31a9-4afb-b2b0-1ae6b120ffb1/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-22 02:11:24,374 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08ee2c38-31a9-4afb-b2b0-1ae6b120ffb1/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-22 02:11:24,398 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_is_valid [2022-11-22 02:11:24,398 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_is_valid [2022-11-22 02:11:24,398 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_cursor_is_valid [2022-11-22 02:11:24,399 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_cursor_is_valid [2022-11-22 02:11:24,399 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-22 02:11:24,400 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2022-11-22 02:11:24,400 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2022-11-22 02:11:24,401 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_append [2022-11-22 02:11:24,401 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_append [2022-11-22 02:11:24,401 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-22 02:11:24,402 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2022-11-22 02:11:24,402 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2022-11-22 02:11:24,402 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-22 02:11:24,402 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-22 02:11:24,402 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-22 02:11:24,403 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-22 02:11:24,404 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-22 02:11:24,404 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_impl [2022-11-22 02:11:24,404 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_impl [2022-11-22 02:11:24,404 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-22 02:11:24,405 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-22 02:11:24,405 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2022-11-22 02:11:24,405 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2022-11-22 02:11:24,405 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-22 02:11:24,405 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-22 02:11:24,406 INFO L130 BoogieDeclarations]: Found specification of procedure my_memcpy [2022-11-22 02:11:24,406 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memcpy [2022-11-22 02:11:24,407 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-22 02:11:24,407 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-22 02:11:24,407 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-22 02:11:24,408 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2022-11-22 02:11:24,408 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2022-11-22 02:11:24,408 INFO L130 BoogieDeclarations]: Found specification of procedure assert_bytes_match [2022-11-22 02:11:24,408 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_bytes_match [2022-11-22 02:11:24,408 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2022-11-22 02:11:24,409 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2022-11-22 02:11:24,409 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-22 02:11:24,409 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-22 02:11:24,807 INFO L235 CfgBuilder]: Building ICFG [2022-11-22 02:11:24,809 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-22 02:11:26,257 INFO L276 CfgBuilder]: Performing block encoding [2022-11-22 02:11:26,728 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-22 02:11:26,729 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-22 02:11:26,733 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:11:26 BoogieIcfgContainer [2022-11-22 02:11:26,733 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-22 02:11:26,737 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-22 02:11:26,738 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-22 02:11:26,742 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-22 02:11:26,742 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 02:11:20" (1/3) ... [2022-11-22 02:11:26,744 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6bde76a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:11:26, skipping insertion in model container [2022-11-22 02:11:26,745 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:11:23" (2/3) ... [2022-11-22 02:11:26,746 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6bde76a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:11:26, skipping insertion in model container [2022-11-22 02:11:26,746 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:11:26" (3/3) ... [2022-11-22 02:11:26,748 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_byte_buf_append_harness.i [2022-11-22 02:11:26,768 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-22 02:11:26,768 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-22 02:11:26,832 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-22 02:11:26,843 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;@4c89d793, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-22 02:11:26,844 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-22 02:11:26,848 INFO L276 IsEmpty]: Start isEmpty. Operand has 124 states, 61 states have (on average 1.1475409836065573) internal successors, (70), 62 states have internal predecessors, (70), 48 states have call successors, (48), 13 states have call predecessors, (48), 13 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2022-11-22 02:11:26,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-11-22 02:11:26,859 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:11:26,859 INFO L195 NwaCegarLoop]: trace histogram [7, 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] [2022-11-22 02:11:26,860 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 02:11:26,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:11:26,873 INFO L85 PathProgramCache]: Analyzing trace with hash -963794593, now seen corresponding path program 1 times [2022-11-22 02:11:26,885 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:11:26,885 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1430144981] [2022-11-22 02:11:26,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:11:26,886 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:11:28,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:11:38,058 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2022-11-22 02:11:38,059 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:11:38,059 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1430144981] [2022-11-22 02:11:38,059 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1430144981] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 02:11:38,060 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1094053540] [2022-11-22 02:11:38,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:11:38,060 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 02:11:38,060 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08ee2c38-31a9-4afb-b2b0-1ae6b120ffb1/bin/utaipan-g80aRyZoba/z3 [2022-11-22 02:11:38,069 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08ee2c38-31a9-4afb-b2b0-1ae6b120ffb1/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 02:11:38,090 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08ee2c38-31a9-4afb-b2b0-1ae6b120ffb1/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-22 02:11:38,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:11:38,852 INFO L263 TraceCheckSpWp]: Trace formula consists of 2603 conjuncts, 73 conjunts are in the unsatisfiable core [2022-11-22 02:11:38,867 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 02:11:39,194 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 [2022-11-22 02:11:39,205 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 [2022-11-22 02:11:42,226 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2022-11-22 02:11:42,289 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 9 proven. 31 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-22 02:11:42,290 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 02:11:44,175 WARN L176 XnfTransformerHelper]: Simplifying conjuction of 14202 disjunctions. This might take some time... [2022-11-22 02:11:56,279 INFO L192 XnfTransformerHelper]: Simplified to conjuction of 13413 disjunctions.