./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_byte_buf_write_u8_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8393723b 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_35390078-db68-48b2-a11a-05dbcfe6be91/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35390078-db68-48b2-a11a-05dbcfe6be91/bin/utaipan-I9t0OCRTmS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35390078-db68-48b2-a11a-05dbcfe6be91/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35390078-db68-48b2-a11a-05dbcfe6be91/bin/utaipan-I9t0OCRTmS/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_buf_write_u8_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35390078-db68-48b2-a11a-05dbcfe6be91/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35390078-db68-48b2-a11a-05dbcfe6be91/bin/utaipan-I9t0OCRTmS --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 624e111eb11fc6cb53be17248f0e61e18bd8cc958dfb511134351ecf4f085f78 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-8393723 [2022-11-19 07:27:13,681 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 07:27:13,683 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 07:27:13,707 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 07:27:13,708 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 07:27:13,709 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 07:27:13,710 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 07:27:13,712 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 07:27:13,714 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 07:27:13,715 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 07:27:13,716 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 07:27:13,718 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 07:27:13,718 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 07:27:13,719 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 07:27:13,721 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 07:27:13,722 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 07:27:13,723 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 07:27:13,724 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 07:27:13,726 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 07:27:13,728 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 07:27:13,730 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 07:27:13,731 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 07:27:13,733 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 07:27:13,734 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 07:27:13,738 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 07:27:13,738 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 07:27:13,739 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 07:27:13,740 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 07:27:13,740 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 07:27:13,742 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 07:27:13,742 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 07:27:13,743 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 07:27:13,747 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 07:27:13,748 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 07:27:13,749 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 07:27:13,749 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 07:27:13,750 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 07:27:13,750 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 07:27:13,751 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 07:27:13,752 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 07:27:13,752 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 07:27:13,753 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35390078-db68-48b2-a11a-05dbcfe6be91/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-19 07:27:13,776 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 07:27:13,776 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 07:27:13,776 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 07:27:13,777 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 07:27:13,777 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 07:27:13,777 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 07:27:13,778 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 07:27:13,778 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 07:27:13,778 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 07:27:13,778 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-19 07:27:13,779 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 07:27:13,779 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 07:27:13,779 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-19 07:27:13,779 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-19 07:27:13,779 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 07:27:13,780 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-19 07:27:13,780 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-19 07:27:13,780 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-19 07:27:13,781 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 07:27:13,792 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-19 07:27:13,792 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 07:27:13,792 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-19 07:27:13,793 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 07:27:13,793 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-19 07:27:13,793 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-19 07:27:13,793 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 07:27:13,793 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-19 07:27:13,794 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 07:27:13,794 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 07:27:13,794 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 07:27:13,795 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 07:27:13,795 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-19 07:27:13,795 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 07:27:13,795 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-19 07:27:13,796 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-19 07:27:13,796 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-19 07:27:13,796 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-19 07:27:13,796 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 07:27:13,796 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_35390078-db68-48b2-a11a-05dbcfe6be91/bin/utaipan-I9t0OCRTmS/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35390078-db68-48b2-a11a-05dbcfe6be91/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 624e111eb11fc6cb53be17248f0e61e18bd8cc958dfb511134351ecf4f085f78 [2022-11-19 07:27:14,057 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 07:27:14,094 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 07:27:14,097 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 07:27:14,099 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 07:27:14,100 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 07:27:14,101 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35390078-db68-48b2-a11a-05dbcfe6be91/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/aws-c-common/aws_byte_buf_write_u8_harness.i [2022-11-19 07:27:14,177 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35390078-db68-48b2-a11a-05dbcfe6be91/bin/utaipan-I9t0OCRTmS/data/2bca396a9/e8e5bd9748314378aaa9f4cf75f7beaf/FLAGbd865bb93 [2022-11-19 07:27:15,023 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 07:27:15,024 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35390078-db68-48b2-a11a-05dbcfe6be91/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_u8_harness.i [2022-11-19 07:27:15,073 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35390078-db68-48b2-a11a-05dbcfe6be91/bin/utaipan-I9t0OCRTmS/data/2bca396a9/e8e5bd9748314378aaa9f4cf75f7beaf/FLAGbd865bb93 [2022-11-19 07:27:15,540 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35390078-db68-48b2-a11a-05dbcfe6be91/bin/utaipan-I9t0OCRTmS/data/2bca396a9/e8e5bd9748314378aaa9f4cf75f7beaf [2022-11-19 07:27:15,542 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 07:27:15,545 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 07:27:15,546 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 07:27:15,547 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 07:27:15,550 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 07:27:15,552 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:27:15" (1/1) ... [2022-11-19 07:27:15,553 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@441a0ab7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:27:15, skipping insertion in model container [2022-11-19 07:27:15,553 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:27:15" (1/1) ... [2022-11-19 07:27:15,561 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 07:27:15,670 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 07:27:15,998 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35390078-db68-48b2-a11a-05dbcfe6be91/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_u8_harness.i[4495,4508] [2022-11-19 07:27:16,006 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35390078-db68-48b2-a11a-05dbcfe6be91/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_u8_harness.i[4555,4568] [2022-11-19 07:27:16,951 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 07:27:16,952 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 07:27:16,953 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 07:27:16,954 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 07:27:16,955 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 07:27:16,970 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 07:27:16,971 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 07:27:16,973 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 07:27:16,974 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 07:27:17,450 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-11-19 07:27:17,452 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-11-19 07:27:17,454 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-11-19 07:27:17,456 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-11-19 07:27:17,462 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-11-19 07:27:17,463 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-11-19 07:27:17,468 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-11-19 07:27:17,469 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-11-19 07:27:17,471 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-11-19 07:27:17,474 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-11-19 07:27:17,646 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-11-19 07:27:17,818 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 07:27:17,819 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 07:27:17,937 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:27:18,003 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 07:27:18,018 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35390078-db68-48b2-a11a-05dbcfe6be91/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_u8_harness.i[4495,4508] [2022-11-19 07:27:18,019 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35390078-db68-48b2-a11a-05dbcfe6be91/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_u8_harness.i[4555,4568] [2022-11-19 07:27:18,060 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 07:27:18,060 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 07:27:18,061 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 07:27:18,061 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 07:27:18,062 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 07:27:18,069 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 07:27:18,070 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 07:27:18,071 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 07:27:18,072 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 07:27:18,108 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-11-19 07:27:18,109 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-11-19 07:27:18,110 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-11-19 07:27:18,111 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-11-19 07:27:18,112 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-11-19 07:27:18,113 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-11-19 07:27:18,113 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-11-19 07:27:18,114 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-11-19 07:27:18,114 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-11-19 07:27:18,115 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-11-19 07:27:18,135 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-11-19 07:27:18,186 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 07:27:18,191 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 07:27:18,274 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:27:18,583 INFO L208 MainTranslator]: Completed translation [2022-11-19 07:27:18,583 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:27:18 WrapperNode [2022-11-19 07:27:18,583 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 07:27:18,584 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 07:27:18,585 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 07:27:18,585 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 07:27:18,593 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:27:18" (1/1) ... [2022-11-19 07:27:18,724 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:27:18" (1/1) ... [2022-11-19 07:27:18,819 INFO L138 Inliner]: procedures = 691, calls = 2618, calls flagged for inlining = 62, calls inlined = 9, statements flattened = 855 [2022-11-19 07:27:18,819 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 07:27:18,821 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 07:27:18,821 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 07:27:18,821 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 07:27:18,831 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:27:18" (1/1) ... [2022-11-19 07:27:18,831 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:27:18" (1/1) ... [2022-11-19 07:27:18,844 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:27:18" (1/1) ... [2022-11-19 07:27:18,845 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:27:18" (1/1) ... [2022-11-19 07:27:18,885 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:27:18" (1/1) ... [2022-11-19 07:27:18,890 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:27:18" (1/1) ... [2022-11-19 07:27:18,897 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:27:18" (1/1) ... [2022-11-19 07:27:18,901 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:27:18" (1/1) ... [2022-11-19 07:27:18,910 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 07:27:18,911 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 07:27:18,911 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 07:27:18,912 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 07:27:18,913 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:27:18" (1/1) ... [2022-11-19 07:27:18,919 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 07:27:18,930 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35390078-db68-48b2-a11a-05dbcfe6be91/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:27:18,944 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35390078-db68-48b2-a11a-05dbcfe6be91/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 07:27:18,968 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35390078-db68-48b2-a11a-05dbcfe6be91/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 07:27:19,003 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_is_valid [2022-11-19 07:27:19,003 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_is_valid [2022-11-19 07:27:19,004 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-19 07:27:19,005 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2022-11-19 07:27:19,005 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2022-11-19 07:27:19,005 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-19 07:27:19,006 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-19 07:27:19,007 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-19 07:27:19,007 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-19 07:27:19,007 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-19 07:27:19,007 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-19 07:27:19,008 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_impl [2022-11-19 07:27:19,008 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_impl [2022-11-19 07:27:19,008 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 07:27:19,008 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 07:27:19,008 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2022-11-19 07:27:19,008 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2022-11-19 07:27:19,009 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2022-11-19 07:27:19,009 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2022-11-19 07:27:19,009 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-19 07:27:19,009 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-19 07:27:19,009 INFO L130 BoogieDeclarations]: Found specification of procedure my_memcpy [2022-11-19 07:27:19,010 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memcpy [2022-11-19 07:27:19,010 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-19 07:27:19,011 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-19 07:27:19,011 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_write [2022-11-19 07:27:19,011 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_write [2022-11-19 07:27:19,012 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-19 07:27:19,012 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2022-11-19 07:27:19,012 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2022-11-19 07:27:19,012 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-19 07:27:19,012 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-19 07:27:19,336 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 07:27:19,339 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 07:27:20,706 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 07:27:21,059 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 07:27:21,059 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-19 07:27:21,062 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:27:21 BoogieIcfgContainer [2022-11-19 07:27:21,063 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 07:27:21,066 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 07:27:21,066 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 07:27:21,070 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 07:27:21,070 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:27:15" (1/3) ... [2022-11-19 07:27:21,071 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71ecee8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:27:21, skipping insertion in model container [2022-11-19 07:27:21,071 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:27:18" (2/3) ... [2022-11-19 07:27:21,072 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71ecee8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:27:21, skipping insertion in model container [2022-11-19 07:27:21,072 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:27:21" (3/3) ... [2022-11-19 07:27:21,074 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_byte_buf_write_u8_harness.i [2022-11-19 07:27:21,094 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 07:27:21,095 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-19 07:27:21,176 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 07:27:21,189 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;@386d6aea, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 07:27:21,190 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-19 07:27:21,195 INFO L276 IsEmpty]: Start isEmpty. Operand has 98 states, 52 states have (on average 1.1923076923076923) internal successors, (62), 53 states have internal predecessors, (62), 34 states have call successors, (34), 10 states have call predecessors, (34), 10 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2022-11-19 07:27:21,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2022-11-19 07:27:21,205 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:27:21,206 INFO L195 NwaCegarLoop]: trace histogram [6, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:27:21,206 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:27:21,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:27:21,213 INFO L85 PathProgramCache]: Analyzing trace with hash 1762663939, now seen corresponding path program 1 times [2022-11-19 07:27:21,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:27:21,224 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2032365621] [2022-11-19 07:27:21,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:27:21,225 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:27:24,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:27:43,858 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 6 proven. 7 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2022-11-19 07:27:43,858 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:27:43,859 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2032365621] [2022-11-19 07:27:43,859 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2032365621] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 07:27:43,859 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1861275526] [2022-11-19 07:27:43,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:27:43,860 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:27:43,860 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35390078-db68-48b2-a11a-05dbcfe6be91/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:27:43,864 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35390078-db68-48b2-a11a-05dbcfe6be91/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:27:43,892 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35390078-db68-48b2-a11a-05dbcfe6be91/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-19 07:27:44,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:27:44,604 INFO L263 TraceCheckSpWp]: Trace formula consists of 2582 conjuncts, 100 conjunts are in the unsatisfiable core [2022-11-19 07:27:44,623 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:27:45,009 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-19 07:27:45,553 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:27:45,559 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 19 [2022-11-19 07:28:05,617 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 14 proven. 24 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-19 07:28:05,618 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 07:28:08,511 WARN L176 XnfTransformerHelper]: Simplifying conjuction of 76449 disjunctions. This might take some time... [2022-11-19 07:36:01,381 INFO L192 XnfTransformerHelper]: Simplified to conjuction of 76449 disjunctions.