./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 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_43109a90-66fc-4578-aba8-0504be438812/bin/utaipan-Q6hlc19bkW/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43109a90-66fc-4578-aba8-0504be438812/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_43109a90-66fc-4578-aba8-0504be438812/bin/utaipan-Q6hlc19bkW/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43109a90-66fc-4578-aba8-0504be438812/bin/utaipan-Q6hlc19bkW/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_43109a90-66fc-4578-aba8-0504be438812/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_43109a90-66fc-4578-aba8-0504be438812/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 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-4e7fbc6 [2022-11-23 14:39:49,829 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 14:39:49,831 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 14:39:49,869 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 14:39:49,870 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 14:39:49,873 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 14:39:49,876 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 14:39:49,878 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 14:39:49,880 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 14:39:49,888 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 14:39:49,888 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 14:39:49,889 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 14:39:49,890 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 14:39:49,891 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 14:39:49,891 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 14:39:49,892 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 14:39:49,893 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 14:39:49,894 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 14:39:49,898 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 14:39:49,905 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 14:39:49,907 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 14:39:49,909 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 14:39:49,911 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 14:39:49,912 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 14:39:49,921 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 14:39:49,922 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 14:39:49,922 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 14:39:49,924 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 14:39:49,924 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 14:39:49,925 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 14:39:49,926 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 14:39:49,926 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 14:39:49,928 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 14:39:49,930 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 14:39:49,931 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 14:39:49,931 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 14:39:49,933 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 14:39:49,933 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 14:39:49,933 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 14:39:49,935 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 14:39:49,936 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 14:39:49,937 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43109a90-66fc-4578-aba8-0504be438812/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-23 14:39:49,991 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 14:39:49,991 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 14:39:49,992 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 14:39:49,992 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 14:39:49,993 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 14:39:49,994 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 14:39:49,994 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-23 14:39:49,994 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-23 14:39:49,994 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-23 14:39:49,995 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-23 14:39:49,996 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-23 14:39:49,996 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-23 14:39:49,996 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-23 14:39:49,997 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-23 14:39:49,997 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-23 14:39:49,997 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-23 14:39:49,997 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-23 14:39:49,998 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-23 14:39:49,998 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 14:39:49,999 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 14:39:49,999 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 14:39:49,999 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 14:39:49,999 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 14:39:50,000 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 14:39:50,000 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 14:39:50,000 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 14:39:50,000 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 14:39:50,001 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 14:39:50,001 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 14:39:50,001 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 14:39:50,002 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 14:39:50,002 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-23 14:39:50,002 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 14:39:50,003 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 14:39:50,003 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-23 14:39:50,003 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 14:39:50,003 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 14:39:50,004 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-23 14:39:50,004 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_43109a90-66fc-4578-aba8-0504be438812/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43109a90-66fc-4578-aba8-0504be438812/bin/utaipan-Q6hlc19bkW Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> aad159acc9cbece9fe1ce64619aff83e5e3477bbd84af6f399f8d36d8b5384a2 [2022-11-23 14:39:50,264 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 14:39:50,289 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 14:39:50,292 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 14:39:50,293 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 14:39:50,294 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 14:39:50,295 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43109a90-66fc-4578-aba8-0504be438812/bin/utaipan-Q6hlc19bkW/../../sv-benchmarks/c/aws-c-common/aws_byte_buf_append_harness.i [2022-11-23 14:39:53,328 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 14:39:53,920 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 14:39:53,920 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43109a90-66fc-4578-aba8-0504be438812/sv-benchmarks/c/aws-c-common/aws_byte_buf_append_harness.i [2022-11-23 14:39:53,967 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43109a90-66fc-4578-aba8-0504be438812/bin/utaipan-Q6hlc19bkW/data/514c61cfe/73b6ae9af57c4aed847c7ce188b96436/FLAG258ec1d6d [2022-11-23 14:39:53,990 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43109a90-66fc-4578-aba8-0504be438812/bin/utaipan-Q6hlc19bkW/data/514c61cfe/73b6ae9af57c4aed847c7ce188b96436 [2022-11-23 14:39:53,993 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 14:39:53,994 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 14:39:53,995 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 14:39:53,996 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 14:39:53,999 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 14:39:54,000 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:39:53" (1/1) ... [2022-11-23 14:39:54,001 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@552f9c0d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:39:54, skipping insertion in model container [2022-11-23 14:39:54,002 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:39:53" (1/1) ... [2022-11-23 14:39:54,009 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 14:39:54,120 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 14:39:54,364 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_43109a90-66fc-4578-aba8-0504be438812/sv-benchmarks/c/aws-c-common/aws_byte_buf_append_harness.i[4493,4506] [2022-11-23 14:39:54,374 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_43109a90-66fc-4578-aba8-0504be438812/sv-benchmarks/c/aws-c-common/aws_byte_buf_append_harness.i[4553,4566] [2022-11-23 14:39:55,473 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-23 14:39:55,475 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-23 14:39:55,475 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-23 14:39:55,476 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-23 14:39:55,477 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-23 14:39:55,493 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-23 14:39:55,493 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-23 14:39:55,495 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-23 14:39:55,496 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-23 14:39:56,027 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-11-23 14:39:56,029 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-11-23 14:39:56,030 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-11-23 14:39:56,032 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-11-23 14:39:56,034 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-11-23 14:39:56,035 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-11-23 14:39:56,036 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-11-23 14:39:56,037 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-11-23 14:39:56,038 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-11-23 14:39:56,038 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-11-23 14:39:56,327 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-11-23 14:39:56,451 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-23 14:39:56,452 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-23 14:39:56,605 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 14:39:56,649 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 14:39:56,668 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_43109a90-66fc-4578-aba8-0504be438812/sv-benchmarks/c/aws-c-common/aws_byte_buf_append_harness.i[4493,4506] [2022-11-23 14:39:56,669 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_43109a90-66fc-4578-aba8-0504be438812/sv-benchmarks/c/aws-c-common/aws_byte_buf_append_harness.i[4553,4566] [2022-11-23 14:39:56,710 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-23 14:39:56,711 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-23 14:39:56,711 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-23 14:39:56,712 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-23 14:39:56,713 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-23 14:39:56,720 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-23 14:39:56,720 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-23 14:39:56,721 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-23 14:39:56,722 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-23 14:39:56,761 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-11-23 14:39:56,762 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-11-23 14:39:56,763 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-11-23 14:39:56,764 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-11-23 14:39:56,765 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-11-23 14:39:56,765 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-11-23 14:39:56,766 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-11-23 14:39:56,766 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-11-23 14:39:56,767 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-11-23 14:39:56,767 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-11-23 14:39:56,799 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-11-23 14:39:56,898 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-23 14:39:56,898 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-23 14:39:56,953 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 14:39:57,223 INFO L208 MainTranslator]: Completed translation [2022-11-23 14:39:57,224 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:39:57 WrapperNode [2022-11-23 14:39:57,224 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 14:39:57,226 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 14:39:57,226 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 14:39:57,226 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 14:39:57,233 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:39:57" (1/1) ... [2022-11-23 14:39:57,319 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:39:57" (1/1) ... [2022-11-23 14:39:57,407 INFO L138 Inliner]: procedures = 691, calls = 2642, calls flagged for inlining = 60, calls inlined = 8, statements flattened = 858 [2022-11-23 14:39:57,407 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 14:39:57,409 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 14:39:57,409 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 14:39:57,410 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 14:39:57,419 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:39:57" (1/1) ... [2022-11-23 14:39:57,419 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:39:57" (1/1) ... [2022-11-23 14:39:57,433 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:39:57" (1/1) ... [2022-11-23 14:39:57,433 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:39:57" (1/1) ... [2022-11-23 14:39:57,479 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:39:57" (1/1) ... [2022-11-23 14:39:57,499 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:39:57" (1/1) ... [2022-11-23 14:39:57,505 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:39:57" (1/1) ... [2022-11-23 14:39:57,516 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:39:57" (1/1) ... [2022-11-23 14:39:57,524 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 14:39:57,533 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 14:39:57,534 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 14:39:57,534 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 14:39:57,535 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:39:57" (1/1) ... [2022-11-23 14:39:57,541 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 14:39:57,552 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43109a90-66fc-4578-aba8-0504be438812/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:39:57,565 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43109a90-66fc-4578-aba8-0504be438812/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 14:39:57,601 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43109a90-66fc-4578-aba8-0504be438812/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 14:39:57,620 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_is_valid [2022-11-23 14:39:57,620 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_is_valid [2022-11-23 14:39:57,620 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_cursor_is_valid [2022-11-23 14:39:57,621 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_cursor_is_valid [2022-11-23 14:39:57,621 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-23 14:39:57,621 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2022-11-23 14:39:57,622 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2022-11-23 14:39:57,622 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_append [2022-11-23 14:39:57,622 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_append [2022-11-23 14:39:57,622 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-23 14:39:57,623 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2022-11-23 14:39:57,623 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2022-11-23 14:39:57,623 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-23 14:39:57,624 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-23 14:39:57,624 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-23 14:39:57,624 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 14:39:57,624 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-23 14:39:57,624 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_impl [2022-11-23 14:39:57,624 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_impl [2022-11-23 14:39:57,625 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 14:39:57,625 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 14:39:57,625 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2022-11-23 14:39:57,625 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2022-11-23 14:39:57,625 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-23 14:39:57,625 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-23 14:39:57,626 INFO L130 BoogieDeclarations]: Found specification of procedure my_memcpy [2022-11-23 14:39:57,626 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memcpy [2022-11-23 14:39:57,626 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-23 14:39:57,626 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-23 14:39:57,627 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-23 14:39:57,627 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2022-11-23 14:39:57,627 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2022-11-23 14:39:57,627 INFO L130 BoogieDeclarations]: Found specification of procedure assert_bytes_match [2022-11-23 14:39:57,627 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_bytes_match [2022-11-23 14:39:57,628 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2022-11-23 14:39:57,628 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2022-11-23 14:39:57,628 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-23 14:39:57,628 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-23 14:39:58,022 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 14:39:58,025 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 14:39:59,404 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 14:39:59,824 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 14:39:59,825 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-23 14:39:59,828 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:39:59 BoogieIcfgContainer [2022-11-23 14:39:59,828 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 14:39:59,830 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 14:39:59,830 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 14:39:59,834 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 14:39:59,834 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:39:53" (1/3) ... [2022-11-23 14:39:59,835 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46bc5f00 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:39:59, skipping insertion in model container [2022-11-23 14:39:59,835 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:39:57" (2/3) ... [2022-11-23 14:39:59,835 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46bc5f00 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:39:59, skipping insertion in model container [2022-11-23 14:39:59,835 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:39:59" (3/3) ... [2022-11-23 14:39:59,837 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_byte_buf_append_harness.i [2022-11-23 14:39:59,856 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 14:39:59,856 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-23 14:39:59,906 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 14:39:59,912 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;@21ede492, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 14:39:59,913 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-23 14:39:59,917 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) [2022-11-23 14:39:59,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-11-23 14:39:59,927 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:39:59,928 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] [2022-11-23 14:39:59,929 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:39:59,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:39:59,935 INFO L85 PathProgramCache]: Analyzing trace with hash -963794593, now seen corresponding path program 1 times [2022-11-23 14:39:59,944 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:39:59,945 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1200479473] [2022-11-23 14:39:59,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:39:59,946 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:40:01,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:40:10,440 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2022-11-23 14:40:10,440 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:40:10,441 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1200479473] [2022-11-23 14:40:10,441 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1200479473] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 14:40:10,442 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1556331852] [2022-11-23 14:40:10,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:40:10,442 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 14:40:10,442 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43109a90-66fc-4578-aba8-0504be438812/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:40:10,451 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43109a90-66fc-4578-aba8-0504be438812/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 14:40:10,472 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43109a90-66fc-4578-aba8-0504be438812/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-23 14:40:11,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:40:11,210 INFO L263 TraceCheckSpWp]: Trace formula consists of 2603 conjuncts, 73 conjunts are in the unsatisfiable core [2022-11-23 14:40:11,222 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:40:11,554 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 14:40:11,565 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 14:40:14,751 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 [2022-11-23 14:40:14,814 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 9 proven. 31 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-23 14:40:14,814 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 14:40:16,515 WARN L176 XnfTransformerHelper]: Simplifying conjuction of 13430 disjunctions. This might take some time... [2022-11-23 14:40:31,716 INFO L192 XnfTransformerHelper]: Simplified to conjuction of 13413 disjunctions.