./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_eq_byte_buf_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 53f42b1a Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24939ffd-d930-4a82-9303-11ad2389df01/bin/utaipan-TEXQjIfE4P/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24939ffd-d930-4a82-9303-11ad2389df01/bin/utaipan-TEXQjIfE4P/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24939ffd-d930-4a82-9303-11ad2389df01/bin/utaipan-TEXQjIfE4P/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24939ffd-d930-4a82-9303-11ad2389df01/bin/utaipan-TEXQjIfE4P/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_eq_byte_buf_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24939ffd-d930-4a82-9303-11ad2389df01/bin/utaipan-TEXQjIfE4P/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24939ffd-d930-4a82-9303-11ad2389df01/bin/utaipan-TEXQjIfE4P --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 4c8e70dc7f77f825f3ef2e89303bbf356ceb3a21ef4dcf0b5c90667d3d62b0fd --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-21 01:13:01,692 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-21 01:13:01,694 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-21 01:13:01,725 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-21 01:13:01,725 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-21 01:13:01,727 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-21 01:13:01,729 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-21 01:13:01,731 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-21 01:13:01,733 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-21 01:13:01,735 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-21 01:13:01,737 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-21 01:13:01,740 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-21 01:13:01,741 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-21 01:13:01,747 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-21 01:13:01,749 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-21 01:13:01,752 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-21 01:13:01,753 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-21 01:13:01,756 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-21 01:13:01,760 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-21 01:13:01,768 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-21 01:13:01,770 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-21 01:13:01,772 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-21 01:13:01,775 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-21 01:13:01,776 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-21 01:13:01,780 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-21 01:13:01,780 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-21 01:13:01,781 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-21 01:13:01,788 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-21 01:13:01,788 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-21 01:13:01,790 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-21 01:13:01,790 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-21 01:13:01,791 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-21 01:13:01,793 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-21 01:13:01,795 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-21 01:13:01,796 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-21 01:13:01,796 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-21 01:13:01,797 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-21 01:13:01,798 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-21 01:13:01,798 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-21 01:13:01,799 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-21 01:13:01,799 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-21 01:13:01,801 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24939ffd-d930-4a82-9303-11ad2389df01/bin/utaipan-TEXQjIfE4P/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-21 01:13:01,853 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-21 01:13:01,853 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-21 01:13:01,854 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-21 01:13:01,854 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-21 01:13:01,856 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-21 01:13:01,856 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-21 01:13:01,856 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-21 01:13:01,856 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-21 01:13:01,857 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-21 01:13:01,857 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-21 01:13:01,858 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-21 01:13:01,858 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-21 01:13:01,859 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-21 01:13:01,859 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-21 01:13:01,859 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-21 01:13:01,859 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-21 01:13:01,860 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-21 01:13:01,860 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-21 01:13:01,861 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-21 01:13:01,861 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-21 01:13:01,861 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-21 01:13:01,861 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-21 01:13:01,862 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-21 01:13:01,862 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-21 01:13:01,862 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-21 01:13:01,862 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-21 01:13:01,864 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-21 01:13:01,864 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-21 01:13:01,864 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-21 01:13:01,865 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 01:13:01,865 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-21 01:13:01,865 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-21 01:13:01,866 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-21 01:13:01,866 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-21 01:13:01,866 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-21 01:13:01,866 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-21 01:13:01,866 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-21 01:13:01,867 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-21 01:13:01,867 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_24939ffd-d930-4a82-9303-11ad2389df01/bin/utaipan-TEXQjIfE4P/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24939ffd-d930-4a82-9303-11ad2389df01/bin/utaipan-TEXQjIfE4P Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4c8e70dc7f77f825f3ef2e89303bbf356ceb3a21ef4dcf0b5c90667d3d62b0fd [2021-11-21 01:13:02,156 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-21 01:13:02,182 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-21 01:13:02,184 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-21 01:13:02,185 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-21 01:13:02,186 INFO L275 PluginConnector]: CDTParser initialized [2021-11-21 01:13:02,187 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24939ffd-d930-4a82-9303-11ad2389df01/bin/utaipan-TEXQjIfE4P/../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_eq_byte_buf_harness.i [2021-11-21 01:13:02,268 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24939ffd-d930-4a82-9303-11ad2389df01/bin/utaipan-TEXQjIfE4P/data/0214328d2/a408a6192faa4d62a995eb5b9a13e2ea/FLAG4f074e825 [2021-11-21 01:13:03,237 INFO L306 CDTParser]: Found 1 translation units. [2021-11-21 01:13:03,237 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24939ffd-d930-4a82-9303-11ad2389df01/sv-benchmarks/c/aws-c-common/aws_byte_cursor_eq_byte_buf_harness.i [2021-11-21 01:13:03,281 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24939ffd-d930-4a82-9303-11ad2389df01/bin/utaipan-TEXQjIfE4P/data/0214328d2/a408a6192faa4d62a995eb5b9a13e2ea/FLAG4f074e825 [2021-11-21 01:13:03,668 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24939ffd-d930-4a82-9303-11ad2389df01/bin/utaipan-TEXQjIfE4P/data/0214328d2/a408a6192faa4d62a995eb5b9a13e2ea [2021-11-21 01:13:03,671 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-21 01:13:03,674 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-21 01:13:03,678 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-21 01:13:03,679 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-21 01:13:03,682 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-21 01:13:03,684 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 01:13:03" (1/1) ... [2021-11-21 01:13:03,685 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@206f5fdd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:13:03, skipping insertion in model container [2021-11-21 01:13:03,686 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 01:13:03" (1/1) ... [2021-11-21 01:13:03,693 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-21 01:13:03,807 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-21 01:13:04,126 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24939ffd-d930-4a82-9303-11ad2389df01/sv-benchmarks/c/aws-c-common/aws_byte_cursor_eq_byte_buf_harness.i[4501,4514] [2021-11-21 01:13:04,134 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24939ffd-d930-4a82-9303-11ad2389df01/sv-benchmarks/c/aws-c-common/aws_byte_cursor_eq_byte_buf_harness.i[4561,4574] [2021-11-21 01:13:05,002 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 01:13:05,003 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 01:13:05,004 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 01:13:05,004 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 01:13:05,006 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 01:13:05,021 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 01:13:05,021 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 01:13:05,024 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 01:13:05,024 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 01:13:05,458 WARN L610 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-21 01:13:05,459 WARN L610 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-21 01:13:05,461 WARN L610 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-21 01:13:05,462 WARN L610 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-21 01:13:05,464 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-21 01:13:05,464 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-21 01:13:05,465 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-21 01:13:05,466 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-21 01:13:05,467 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-21 01:13:05,468 WARN L610 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-21 01:13:05,667 WARN L610 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-21 01:13:05,844 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 01:13:05,845 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 01:13:05,988 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 01:13:06,085 INFO L203 MainTranslator]: Completed pre-run [2021-11-21 01:13:06,115 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24939ffd-d930-4a82-9303-11ad2389df01/sv-benchmarks/c/aws-c-common/aws_byte_cursor_eq_byte_buf_harness.i[4501,4514] [2021-11-21 01:13:06,116 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24939ffd-d930-4a82-9303-11ad2389df01/sv-benchmarks/c/aws-c-common/aws_byte_cursor_eq_byte_buf_harness.i[4561,4574] [2021-11-21 01:13:06,167 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 01:13:06,168 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 01:13:06,168 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 01:13:06,169 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 01:13:06,169 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 01:13:06,176 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 01:13:06,177 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 01:13:06,178 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 01:13:06,178 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 01:13:06,221 WARN L610 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-21 01:13:06,222 WARN L610 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-21 01:13:06,223 WARN L610 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-21 01:13:06,224 WARN L610 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-21 01:13:06,225 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-21 01:13:06,225 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-21 01:13:06,226 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-21 01:13:06,226 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-21 01:13:06,226 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-21 01:13:06,230 WARN L610 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-21 01:13:06,256 WARN L610 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-21 01:13:06,328 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 01:13:06,328 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 01:13:06,368 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 01:13:06,679 INFO L208 MainTranslator]: Completed translation [2021-11-21 01:13:06,679 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:13:06 WrapperNode [2021-11-21 01:13:06,680 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-21 01:13:06,681 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-21 01:13:06,681 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-21 01:13:06,681 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-21 01:13:06,690 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:13:06" (1/1) ... [2021-11-21 01:13:06,812 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:13:06" (1/1) ... [2021-11-21 01:13:06,896 INFO L137 Inliner]: procedures = 691, calls = 2651, calls flagged for inlining = 65, calls inlined = 11, statements flattened = 934 [2021-11-21 01:13:06,897 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-21 01:13:06,899 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-21 01:13:06,899 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-21 01:13:06,899 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-21 01:13:06,908 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:13:06" (1/1) ... [2021-11-21 01:13:06,909 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:13:06" (1/1) ... [2021-11-21 01:13:06,923 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:13:06" (1/1) ... [2021-11-21 01:13:06,924 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:13:06" (1/1) ... [2021-11-21 01:13:07,001 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:13:06" (1/1) ... [2021-11-21 01:13:07,019 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:13:06" (1/1) ... [2021-11-21 01:13:07,026 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:13:06" (1/1) ... [2021-11-21 01:13:07,046 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-21 01:13:07,047 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-21 01:13:07,047 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-21 01:13:07,047 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-21 01:13:07,048 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:13:06" (1/1) ... [2021-11-21 01:13:07,055 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 01:13:07,070 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24939ffd-d930-4a82-9303-11ad2389df01/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 01:13:07,087 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24939ffd-d930-4a82-9303-11ad2389df01/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-21 01:13:07,103 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24939ffd-d930-4a82-9303-11ad2389df01/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-21 01:13:07,147 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_is_valid [2021-11-21 01:13:07,147 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_is_valid [2021-11-21 01:13:07,148 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_cursor_is_valid [2021-11-21 01:13:07,148 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_cursor_is_valid [2021-11-21 01:13:07,149 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-21 01:13:07,150 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-21 01:13:07,150 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2021-11-21 01:13:07,150 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2021-11-21 01:13:07,150 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-21 01:13:07,150 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-21 01:13:07,150 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-21 01:13:07,151 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-21 01:13:07,151 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-21 01:13:07,151 INFO L130 BoogieDeclarations]: Found specification of procedure save_byte_from_array [2021-11-21 01:13:07,152 INFO L138 BoogieDeclarations]: Found implementation of procedure save_byte_from_array [2021-11-21 01:13:07,152 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-21 01:13:07,152 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-21 01:13:07,152 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-21 01:13:07,153 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2021-11-21 01:13:07,153 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2021-11-21 01:13:07,153 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2021-11-21 01:13:07,153 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2021-11-21 01:13:07,154 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-11-21 01:13:07,154 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-11-21 01:13:07,155 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-21 01:13:07,155 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-21 01:13:07,156 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_eq [2021-11-21 01:13:07,156 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_eq [2021-11-21 01:13:07,156 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-21 01:13:07,156 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2021-11-21 01:13:07,156 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2021-11-21 01:13:07,157 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2021-11-21 01:13:07,157 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2021-11-21 01:13:07,157 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-21 01:13:07,157 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-21 01:13:07,507 INFO L236 CfgBuilder]: Building ICFG [2021-11-21 01:13:07,509 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-21 01:13:09,017 INFO L277 CfgBuilder]: Performing block encoding [2021-11-21 01:13:09,261 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-21 01:13:09,261 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-21 01:13:09,265 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 01:13:09 BoogieIcfgContainer [2021-11-21 01:13:09,265 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-21 01:13:09,267 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-21 01:13:09,267 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-21 01:13:09,271 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-21 01:13:09,271 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 01:13:03" (1/3) ... [2021-11-21 01:13:09,272 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ed433fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 01:13:09, skipping insertion in model container [2021-11-21 01:13:09,273 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:13:06" (2/3) ... [2021-11-21 01:13:09,274 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ed433fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 01:13:09, skipping insertion in model container [2021-11-21 01:13:09,274 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 01:13:09" (3/3) ... [2021-11-21 01:13:09,276 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_byte_cursor_eq_byte_buf_harness.i [2021-11-21 01:13:09,282 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-21 01:13:09,282 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-21 01:13:09,345 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-21 01:13:09,352 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-11-21 01:13:09,353 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-21 01:13:09,374 INFO L276 IsEmpty]: Start isEmpty. Operand has 117 states, 62 states have (on average 1.1935483870967742) internal successors, (74), 63 states have internal predecessors, (74), 42 states have call successors, (42), 11 states have call predecessors, (42), 11 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2021-11-21 01:13:09,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2021-11-21 01:13:09,385 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:13:09,386 INFO L514 BasicCegarLoop]: trace histogram [9, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:13:09,386 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:13:09,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:13:09,392 INFO L85 PathProgramCache]: Analyzing trace with hash 45101985, now seen corresponding path program 1 times [2021-11-21 01:13:09,403 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:13:09,403 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2058401466] [2021-11-21 01:13:09,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:13:09,405 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:13:11,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:13:13,050 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 9 proven. 1 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2021-11-21 01:13:13,050 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:13:13,051 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2058401466] [2021-11-21 01:13:13,051 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2058401466] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-21 01:13:13,052 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1901753167] [2021-11-21 01:13:13,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:13:13,052 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:13:13,052 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24939ffd-d930-4a82-9303-11ad2389df01/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 01:13:13,054 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24939ffd-d930-4a82-9303-11ad2389df01/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 01:13:13,087 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24939ffd-d930-4a82-9303-11ad2389df01/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-21 01:13:13,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:13:13,794 INFO L263 TraceCheckSpWp]: Trace formula consists of 2678 conjuncts, 137 conjunts are in the unsatisfiable core [2021-11-21 01:13:13,812 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 01:13:13,900 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2021-11-21 01:13:14,264 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 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 [2021-11-21 01:13:14,284 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 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 [2021-11-21 01:13:15,490 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-21 01:13:15,506 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-21 01:13:16,006 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 26 [2021-11-21 01:13:16,018 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:13:16,019 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-21 01:13:16,031 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-21 01:13:24,197 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 24 proven. 52 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-21 01:13:24,198 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 01:13:25,297 WARN L176 XnfTransformerHelper]: Simplifying conjuction of 14202 disjunctions. This might take some time... [2021-11-21 01:13:52,479 INFO L192 XnfTransformerHelper]: Simplified to conjuction of 13413 disjunctions.