./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_byte_buf_write_be32_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aef121e0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69672a22-10de-4e6a-be69-872360d61a9e/bin/utaipan-EQgc7hIp5V/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69672a22-10de-4e6a-be69-872360d61a9e/bin/utaipan-EQgc7hIp5V/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69672a22-10de-4e6a-be69-872360d61a9e/bin/utaipan-EQgc7hIp5V/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69672a22-10de-4e6a-be69-872360d61a9e/bin/utaipan-EQgc7hIp5V/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_buf_write_be32_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69672a22-10de-4e6a-be69-872360d61a9e/bin/utaipan-EQgc7hIp5V/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69672a22-10de-4e6a-be69-872360d61a9e/bin/utaipan-EQgc7hIp5V --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 2d2088ac57520281350e2a5a3a1c8295b6f3f6b1edc40c64fce86e2816b5a5aa --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-23 03:23:29,601 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 03:23:29,606 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 03:23:29,646 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 03:23:29,647 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 03:23:29,649 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 03:23:29,651 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 03:23:29,654 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 03:23:29,657 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 03:23:29,662 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 03:23:29,664 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 03:23:29,670 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 03:23:29,672 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 03:23:29,677 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 03:23:29,680 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 03:23:29,683 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 03:23:29,688 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 03:23:29,697 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 03:23:29,700 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 03:23:29,703 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 03:23:29,709 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 03:23:29,711 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 03:23:29,713 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 03:23:29,716 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 03:23:29,725 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 03:23:29,733 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 03:23:29,734 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 03:23:29,735 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 03:23:29,738 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 03:23:29,739 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 03:23:29,741 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 03:23:29,743 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 03:23:29,745 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 03:23:29,747 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 03:23:29,749 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 03:23:29,750 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 03:23:29,751 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 03:23:29,751 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 03:23:29,751 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 03:23:29,753 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 03:23:29,754 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 03:23:29,755 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69672a22-10de-4e6a-be69-872360d61a9e/bin/utaipan-EQgc7hIp5V/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-23 03:23:29,807 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 03:23:29,807 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 03:23:29,808 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 03:23:29,809 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 03:23:29,810 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 03:23:29,810 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 03:23:29,810 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 03:23:29,811 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 03:23:29,811 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 03:23:29,811 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-23 03:23:29,813 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 03:23:29,813 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 03:23:29,813 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-23 03:23:29,814 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-23 03:23:29,814 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 03:23:29,815 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-23 03:23:29,815 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-23 03:23:29,815 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-23 03:23:29,816 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 03:23:29,816 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 03:23:29,817 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 03:23:29,817 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 03:23:29,817 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 03:23:29,818 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 03:23:29,818 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 03:23:29,818 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 03:23:29,821 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 03:23:29,821 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 03:23:29,822 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 03:23:29,822 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 03:23:29,822 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 03:23:29,823 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 03:23:29,823 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 03:23:29,823 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-23 03:23:29,824 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 03:23:29,824 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 03:23:29,825 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 03:23:29,825 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 03:23:29,825 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_69672a22-10de-4e6a-be69-872360d61a9e/bin/utaipan-EQgc7hIp5V/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69672a22-10de-4e6a-be69-872360d61a9e/bin/utaipan-EQgc7hIp5V Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2d2088ac57520281350e2a5a3a1c8295b6f3f6b1edc40c64fce86e2816b5a5aa [2021-11-23 03:23:30,150 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 03:23:30,199 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 03:23:30,203 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 03:23:30,204 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 03:23:30,205 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 03:23:30,207 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69672a22-10de-4e6a-be69-872360d61a9e/bin/utaipan-EQgc7hIp5V/../../sv-benchmarks/c/aws-c-common/aws_byte_buf_write_be32_harness.i [2021-11-23 03:23:30,301 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69672a22-10de-4e6a-be69-872360d61a9e/bin/utaipan-EQgc7hIp5V/data/67666cb47/2b8c9b60b74848d6b1ea608d0c345060/FLAGe897d5d34 [2021-11-23 03:23:31,297 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 03:23:31,298 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69672a22-10de-4e6a-be69-872360d61a9e/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_be32_harness.i [2021-11-23 03:23:31,343 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69672a22-10de-4e6a-be69-872360d61a9e/bin/utaipan-EQgc7hIp5V/data/67666cb47/2b8c9b60b74848d6b1ea608d0c345060/FLAGe897d5d34 [2021-11-23 03:23:31,699 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69672a22-10de-4e6a-be69-872360d61a9e/bin/utaipan-EQgc7hIp5V/data/67666cb47/2b8c9b60b74848d6b1ea608d0c345060 [2021-11-23 03:23:31,702 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 03:23:31,704 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 03:23:31,706 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 03:23:31,706 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 03:23:31,711 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 03:23:31,712 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:23:31" (1/1) ... [2021-11-23 03:23:31,714 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@257ae69a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:23:31, skipping insertion in model container [2021-11-23 03:23:31,714 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:23:31" (1/1) ... [2021-11-23 03:23:31,723 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 03:23:31,839 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 03:23:32,235 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_69672a22-10de-4e6a-be69-872360d61a9e/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_be32_harness.i[4497,4510] [2021-11-23 03:23:32,245 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_69672a22-10de-4e6a-be69-872360d61a9e/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_be32_harness.i[4557,4570] [2021-11-23 03:23:33,533 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-23 03:23:33,534 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-23 03:23:33,535 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-23 03:23:33,536 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-23 03:23:33,538 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-23 03:23:33,557 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-23 03:23:33,558 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-23 03:23:33,560 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-23 03:23:33,561 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-23 03:23:34,162 WARN L610 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-23 03:23:34,164 WARN L610 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-23 03:23:34,166 WARN L610 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-23 03:23:34,168 WARN L610 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-23 03:23:34,170 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-23 03:23:34,171 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-23 03:23:34,172 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-23 03:23:34,174 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-23 03:23:34,175 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-23 03:23:34,176 WARN L610 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-23 03:23:34,437 WARN L610 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-23 03:23:34,631 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-23 03:23:34,631 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-23 03:23:34,723 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 03:23:34,814 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 03:23:34,850 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_69672a22-10de-4e6a-be69-872360d61a9e/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_be32_harness.i[4497,4510] [2021-11-23 03:23:34,851 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_69672a22-10de-4e6a-be69-872360d61a9e/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_be32_harness.i[4557,4570] [2021-11-23 03:23:34,917 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-23 03:23:34,918 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-23 03:23:34,918 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-23 03:23:34,919 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-23 03:23:34,920 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-23 03:23:34,933 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-23 03:23:34,935 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-23 03:23:34,936 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-23 03:23:34,937 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-23 03:23:35,004 WARN L610 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-23 03:23:35,005 WARN L610 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-23 03:23:35,006 WARN L610 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-23 03:23:35,008 WARN L610 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-23 03:23:35,014 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-23 03:23:35,015 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-23 03:23:35,015 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-23 03:23:35,016 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-23 03:23:35,016 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-23 03:23:35,017 WARN L610 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-23 03:23:35,050 WARN L610 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-23 03:23:35,193 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-23 03:23:35,193 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-23 03:23:35,255 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 03:23:35,595 INFO L208 MainTranslator]: Completed translation [2021-11-23 03:23:35,596 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:23:35 WrapperNode [2021-11-23 03:23:35,596 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 03:23:35,598 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 03:23:35,598 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 03:23:35,598 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 03:23:35,607 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:23:35" (1/1) ... [2021-11-23 03:23:35,780 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:23:35" (1/1) ... [2021-11-23 03:23:35,900 INFO L137 Inliner]: procedures = 691, calls = 2619, calls flagged for inlining = 62, calls inlined = 9, statements flattened = 861 [2021-11-23 03:23:35,901 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 03:23:35,902 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 03:23:35,902 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 03:23:35,902 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 03:23:35,916 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:23:35" (1/1) ... [2021-11-23 03:23:35,916 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:23:35" (1/1) ... [2021-11-23 03:23:35,942 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:23:35" (1/1) ... [2021-11-23 03:23:35,944 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:23:35" (1/1) ... [2021-11-23 03:23:35,991 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:23:35" (1/1) ... [2021-11-23 03:23:35,997 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:23:35" (1/1) ... [2021-11-23 03:23:36,021 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:23:35" (1/1) ... [2021-11-23 03:23:36,036 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 03:23:36,053 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 03:23:36,054 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 03:23:36,054 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 03:23:36,056 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:23:35" (1/1) ... [2021-11-23 03:23:36,066 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 03:23:36,080 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69672a22-10de-4e6a-be69-872360d61a9e/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 03:23:36,095 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69672a22-10de-4e6a-be69-872360d61a9e/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 03:23:36,116 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69672a22-10de-4e6a-be69-872360d61a9e/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 03:23:36,154 INFO L130 BoogieDeclarations]: Found specification of procedure htonl [2021-11-23 03:23:36,155 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_is_valid [2021-11-23 03:23:36,156 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_is_valid [2021-11-23 03:23:36,157 INFO L130 BoogieDeclarations]: Found specification of procedure aws_hton32 [2021-11-23 03:23:36,158 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_hton32 [2021-11-23 03:23:36,158 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 03:23:36,158 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2021-11-23 03:23:36,159 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2021-11-23 03:23:36,160 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-23 03:23:36,160 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-23 03:23:36,160 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-23 03:23:36,161 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-23 03:23:36,161 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 03:23:36,161 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-23 03:23:36,162 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_impl [2021-11-23 03:23:36,162 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_impl [2021-11-23 03:23:36,163 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 03:23:36,163 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 03:23:36,163 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2021-11-23 03:23:36,163 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2021-11-23 03:23:36,164 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2021-11-23 03:23:36,164 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2021-11-23 03:23:36,164 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-11-23 03:23:36,166 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-11-23 03:23:36,166 INFO L130 BoogieDeclarations]: Found specification of procedure my_memcpy [2021-11-23 03:23:36,166 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memcpy [2021-11-23 03:23:36,166 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 03:23:36,167 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-23 03:23:36,167 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_write [2021-11-23 03:23:36,167 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_write [2021-11-23 03:23:36,167 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-23 03:23:36,167 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2021-11-23 03:23:36,168 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2021-11-23 03:23:36,168 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-23 03:23:36,168 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 03:23:36,602 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 03:23:36,604 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 03:23:37,994 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 03:23:38,271 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 03:23:38,272 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-23 03:23:38,277 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:23:38 BoogieIcfgContainer [2021-11-23 03:23:38,277 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 03:23:38,282 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 03:23:38,282 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 03:23:38,286 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 03:23:38,287 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 03:23:31" (1/3) ... [2021-11-23 03:23:38,288 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@fc222de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:23:38, skipping insertion in model container [2021-11-23 03:23:38,289 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:23:35" (2/3) ... [2021-11-23 03:23:38,290 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@fc222de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:23:38, skipping insertion in model container [2021-11-23 03:23:38,290 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:23:38" (3/3) ... [2021-11-23 03:23:38,292 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_byte_buf_write_be32_harness.i [2021-11-23 03:23:38,302 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 03:23:38,303 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-23 03:23:38,381 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 03:23:38,405 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 [2021-11-23 03:23:38,405 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-23 03:23:38,433 INFO L276 IsEmpty]: Start isEmpty. Operand has 102 states, 54 states have (on average 1.1851851851851851) internal successors, (64), 55 states have internal predecessors, (64), 35 states have call successors, (35), 11 states have call predecessors, (35), 11 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) [2021-11-23 03:23:38,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-11-23 03:23:38,444 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:23:38,445 INFO L514 BasicCegarLoop]: 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, 1, 1, 1, 1] [2021-11-23 03:23:38,446 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 03:23:38,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:23:38,454 INFO L85 PathProgramCache]: Analyzing trace with hash 1691549819, now seen corresponding path program 1 times [2021-11-23 03:23:38,467 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:23:38,468 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1409579078] [2021-11-23 03:23:38,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:23:38,473 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:23:41,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:23:44,495 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 6 proven. 4 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2021-11-23 03:23:44,495 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:23:44,496 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1409579078] [2021-11-23 03:23:44,497 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1409579078] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 03:23:44,497 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1647501006] [2021-11-23 03:23:44,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:23:44,498 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 03:23:44,498 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69672a22-10de-4e6a-be69-872360d61a9e/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 03:23:44,502 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69672a22-10de-4e6a-be69-872360d61a9e/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 03:23:44,512 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69672a22-10de-4e6a-be69-872360d61a9e/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-23 03:23:45,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:23:45,185 INFO L263 TraceCheckSpWp]: Trace formula consists of 2541 conjuncts, 135 conjunts are in the unsatisfiable core [2021-11-23 03:23:45,209 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 03:23:45,763 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 [2021-11-23 03:23:45,780 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 18 treesize of output 14 [2021-11-23 03:23:52,124 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:23:52,125 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 24 treesize of output 12 [2021-11-23 03:23:52,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:23:52,161 INFO L354 Elim1Store]: treesize reduction 17, result has 46.9 percent of original size [2021-11-23 03:23:52,162 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 40 [2021-11-23 03:23:59,682 INFO L354 Elim1Store]: treesize reduction 40, result has 36.5 percent of original size [2021-11-23 03:23:59,683 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 72 treesize of output 78 [2021-11-23 03:23:59,708 INFO L354 Elim1Store]: treesize reduction 29, result has 19.4 percent of original size [2021-11-23 03:23:59,708 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 68 treesize of output 56 [2021-11-23 03:24:17,726 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 14 proven. 24 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-23 03:24:17,726 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 03:24:20,879 WARN L176 XnfTransformerHelper]: Simplifying conjuction of 76449 disjunctions. This might take some time... [2021-11-23 03:31:55,313 INFO L192 XnfTransformerHelper]: Simplified to conjuction of 76449 disjunctions.