./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_u8_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e04fb08f 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_6e0e45b4-022e-4841-931c-60c22871d34f/bin/utaipan-Xvt2sAort0/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e0e45b4-022e-4841-931c-60c22871d34f/bin/utaipan-Xvt2sAort0/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e0e45b4-022e-4841-931c-60c22871d34f/bin/utaipan-Xvt2sAort0/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e0e45b4-022e-4841-931c-60c22871d34f/bin/utaipan-Xvt2sAort0/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_u8_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e0e45b4-022e-4841-931c-60c22871d34f/bin/utaipan-Xvt2sAort0/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e0e45b4-022e-4841-931c-60c22871d34f/bin/utaipan-Xvt2sAort0 --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 f1ac591932d47e9b0b8902b9705db38e4b5e721c8f02110220ca6714b79582bb --- 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-e04fb08 [2022-11-16 19:29:11,040 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 19:29:11,042 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 19:29:11,077 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 19:29:11,077 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 19:29:11,078 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 19:29:11,080 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 19:29:11,081 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 19:29:11,083 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 19:29:11,084 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 19:29:11,085 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 19:29:11,087 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 19:29:11,087 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 19:29:11,088 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 19:29:11,090 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 19:29:11,091 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 19:29:11,092 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 19:29:11,093 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 19:29:11,095 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 19:29:11,096 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 19:29:11,098 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 19:29:11,099 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 19:29:11,100 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 19:29:11,101 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 19:29:11,105 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 19:29:11,106 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 19:29:11,106 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 19:29:11,107 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 19:29:11,107 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 19:29:11,108 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 19:29:11,109 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 19:29:11,110 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 19:29:11,111 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 19:29:11,111 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 19:29:11,113 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 19:29:11,113 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 19:29:11,114 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 19:29:11,114 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 19:29:11,114 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 19:29:11,115 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 19:29:11,116 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 19:29:11,118 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e0e45b4-022e-4841-931c-60c22871d34f/bin/utaipan-Xvt2sAort0/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-16 19:29:11,155 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 19:29:11,156 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 19:29:11,156 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 19:29:11,156 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 19:29:11,157 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 19:29:11,158 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 19:29:11,158 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-16 19:29:11,158 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-16 19:29:11,158 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-16 19:29:11,159 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-16 19:29:11,159 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-16 19:29:11,159 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-16 19:29:11,159 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-16 19:29:11,160 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-16 19:29:11,160 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-16 19:29:11,160 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-16 19:29:11,160 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-16 19:29:11,161 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-16 19:29:11,161 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 19:29:11,162 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 19:29:11,162 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 19:29:11,162 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 19:29:11,163 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 19:29:11,163 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 19:29:11,163 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 19:29:11,163 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 19:29:11,164 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 19:29:11,164 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 19:29:11,164 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 19:29:11,164 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 19:29:11,165 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 19:29:11,165 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-16 19:29:11,165 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 19:29:11,165 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 19:29:11,166 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-16 19:29:11,168 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 19:29:11,169 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 19:29:11,169 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-16 19:29:11,169 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_6e0e45b4-022e-4841-931c-60c22871d34f/bin/utaipan-Xvt2sAort0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e0e45b4-022e-4841-931c-60c22871d34f/bin/utaipan-Xvt2sAort0 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f1ac591932d47e9b0b8902b9705db38e4b5e721c8f02110220ca6714b79582bb [2022-11-16 19:29:11,488 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 19:29:11,518 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 19:29:11,522 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 19:29:11,524 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 19:29:11,525 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 19:29:11,526 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e0e45b4-022e-4841-931c-60c22871d34f/bin/utaipan-Xvt2sAort0/../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_u8_harness.i [2022-11-16 19:29:11,607 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e0e45b4-022e-4841-931c-60c22871d34f/bin/utaipan-Xvt2sAort0/data/5c03fe454/f74fd752ef304859b00b50c48559424d/FLAG20e986b27 [2022-11-16 19:29:12,452 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 19:29:12,453 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e0e45b4-022e-4841-931c-60c22871d34f/sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_u8_harness.i [2022-11-16 19:29:12,507 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e0e45b4-022e-4841-931c-60c22871d34f/bin/utaipan-Xvt2sAort0/data/5c03fe454/f74fd752ef304859b00b50c48559424d/FLAG20e986b27 [2022-11-16 19:29:12,986 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e0e45b4-022e-4841-931c-60c22871d34f/bin/utaipan-Xvt2sAort0/data/5c03fe454/f74fd752ef304859b00b50c48559424d [2022-11-16 19:29:12,989 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 19:29:12,990 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 19:29:12,991 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 19:29:12,992 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 19:29:12,995 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 19:29:12,996 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 07:29:12" (1/1) ... [2022-11-16 19:29:12,997 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@626b0f99 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:29:12, skipping insertion in model container [2022-11-16 19:29:12,998 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 07:29:12" (1/1) ... [2022-11-16 19:29:13,005 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 19:29:13,129 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 19:29:13,476 WARN L229 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_6e0e45b4-022e-4841-931c-60c22871d34f/sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_u8_harness.i[4497,4510] [2022-11-16 19:29:13,483 WARN L229 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_6e0e45b4-022e-4841-931c-60c22871d34f/sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_u8_harness.i[4557,4570] [2022-11-16 19:29:14,589 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 19:29:14,590 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 19:29:14,590 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 19:29:14,591 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 19:29:14,592 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 19:29:14,605 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 19:29:14,606 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 19:29:14,608 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 19:29:14,609 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 19:29:15,114 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-11-16 19:29:15,115 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-11-16 19:29:15,117 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-11-16 19:29:15,118 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-11-16 19:29:15,119 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-11-16 19:29:15,120 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-11-16 19:29:15,121 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-11-16 19:29:15,121 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-11-16 19:29:15,123 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-11-16 19:29:15,124 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-11-16 19:29:15,320 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-11-16 19:29:15,428 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 19:29:15,429 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 19:29:15,502 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 19:29:15,558 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 19:29:15,576 WARN L229 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_6e0e45b4-022e-4841-931c-60c22871d34f/sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_u8_harness.i[4497,4510] [2022-11-16 19:29:15,580 WARN L229 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_6e0e45b4-022e-4841-931c-60c22871d34f/sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_u8_harness.i[4557,4570] [2022-11-16 19:29:15,619 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 19:29:15,619 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 19:29:15,620 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 19:29:15,620 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 19:29:15,621 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 19:29:15,628 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 19:29:15,629 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 19:29:15,630 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 19:29:15,630 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 19:29:15,663 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-11-16 19:29:15,664 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-11-16 19:29:15,665 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-11-16 19:29:15,665 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-11-16 19:29:15,666 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-11-16 19:29:15,667 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-11-16 19:29:15,668 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-11-16 19:29:15,668 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-11-16 19:29:15,669 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-11-16 19:29:15,669 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-11-16 19:29:15,717 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-11-16 19:29:15,793 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 19:29:15,801 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 19:29:15,840 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 19:29:16,129 INFO L208 MainTranslator]: Completed translation [2022-11-16 19:29:16,129 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:29:16 WrapperNode [2022-11-16 19:29:16,130 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 19:29:16,131 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 19:29:16,131 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 19:29:16,131 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 19:29:16,139 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:29:16" (1/1) ... [2022-11-16 19:29:16,300 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:29:16" (1/1) ... [2022-11-16 19:29:16,427 INFO L138 Inliner]: procedures = 690, calls = 2631, calls flagged for inlining = 61, calls inlined = 10, statements flattened = 955 [2022-11-16 19:29:16,427 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 19:29:16,428 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 19:29:16,428 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 19:29:16,429 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 19:29:16,438 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:29:16" (1/1) ... [2022-11-16 19:29:16,439 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:29:16" (1/1) ... [2022-11-16 19:29:16,454 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:29:16" (1/1) ... [2022-11-16 19:29:16,454 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:29:16" (1/1) ... [2022-11-16 19:29:16,509 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:29:16" (1/1) ... [2022-11-16 19:29:16,527 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:29:16" (1/1) ... [2022-11-16 19:29:16,535 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:29:16" (1/1) ... [2022-11-16 19:29:16,546 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:29:16" (1/1) ... [2022-11-16 19:29:16,581 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 19:29:16,581 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 19:29:16,581 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 19:29:16,582 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 19:29:16,586 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:29:16" (1/1) ... [2022-11-16 19:29:16,593 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 19:29:16,603 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e0e45b4-022e-4841-931c-60c22871d34f/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 19:29:16,617 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e0e45b4-022e-4841-931c-60c22871d34f/bin/utaipan-Xvt2sAort0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 19:29:16,644 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e0e45b4-022e-4841-931c-60c22871d34f/bin/utaipan-Xvt2sAort0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 19:29:16,662 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_cursor_read [2022-11-16 19:29:16,662 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_cursor_read [2022-11-16 19:29:16,663 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_cursor_is_valid [2022-11-16 19:29:16,664 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_cursor_is_valid [2022-11-16 19:29:16,664 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 19:29:16,664 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2022-11-16 19:29:16,665 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2022-11-16 19:29:16,665 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real [2022-11-16 19:29:16,665 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-16 19:29:16,666 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-16 19:29:16,666 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-16 19:29:16,666 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-16 19:29:16,666 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-16 19:29:16,666 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-16 19:29:16,667 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-16 19:29:16,667 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-16 19:29:16,667 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 19:29:16,667 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-16 19:29:16,667 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 19:29:16,668 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 19:29:16,668 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2022-11-16 19:29:16,668 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2022-11-16 19:29:16,669 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-16 19:29:16,669 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-16 19:29:16,669 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-16 19:29:16,670 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-16 19:29:16,670 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 19:29:16,670 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-16 19:29:16,670 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-16 19:29:16,670 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2022-11-16 19:29:16,671 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2022-11-16 19:29:16,671 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-16 19:29:16,671 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~real [2022-11-16 19:29:16,671 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 19:29:17,034 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 19:29:17,036 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 19:29:18,706 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 19:29:19,059 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 19:29:19,060 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-16 19:29:19,063 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 07:29:19 BoogieIcfgContainer [2022-11-16 19:29:19,063 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 19:29:19,067 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 19:29:19,067 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 19:29:19,071 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 19:29:19,071 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 07:29:12" (1/3) ... [2022-11-16 19:29:19,072 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b2c1c42 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 07:29:19, skipping insertion in model container [2022-11-16 19:29:19,072 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:29:16" (2/3) ... [2022-11-16 19:29:19,073 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b2c1c42 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 07:29:19, skipping insertion in model container [2022-11-16 19:29:19,073 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 07:29:19" (3/3) ... [2022-11-16 19:29:19,074 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_byte_cursor_read_u8_harness.i [2022-11-16 19:29:19,096 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 19:29:19,098 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-16 19:29:19,177 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 19:29:19,189 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;@67edad56, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 19:29:19,190 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-16 19:29:19,194 INFO L276 IsEmpty]: Start isEmpty. Operand has 98 states, 50 states have (on average 1.2) internal successors, (60), 51 states have internal predecessors, (60), 38 states have call successors, (38), 8 states have call predecessors, (38), 8 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2022-11-16 19:29:19,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-11-16 19:29:19,204 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 19:29:19,205 INFO L195 NwaCegarLoop]: trace histogram [9, 5, 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] [2022-11-16 19:29:19,205 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 19:29:19,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 19:29:19,213 INFO L85 PathProgramCache]: Analyzing trace with hash 199302089, now seen corresponding path program 1 times [2022-11-16 19:29:19,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 19:29:19,224 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1200315404] [2022-11-16 19:29:19,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 19:29:19,229 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 19:29:22,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 19:29:30,368 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 7 proven. 11 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2022-11-16 19:29:30,369 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 19:29:30,369 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1200315404] [2022-11-16 19:29:30,369 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1200315404] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 19:29:30,370 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2129834741] [2022-11-16 19:29:30,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 19:29:30,370 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 19:29:30,370 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e0e45b4-022e-4841-931c-60c22871d34f/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 19:29:30,378 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e0e45b4-022e-4841-931c-60c22871d34f/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 19:29:30,398 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e0e45b4-022e-4841-931c-60c22871d34f/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-16 19:29:31,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 19:29:31,177 INFO L263 TraceCheckSpWp]: Trace formula consists of 2707 conjuncts, 112 conjunts are in the unsatisfiable core [2022-11-16 19:29:31,192 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 19:29:31,488 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-16 19:29:31,497 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-16 19:29:31,509 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-16 19:29:35,801 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:29:35,806 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-16 19:29:35,806 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 88 treesize of output 68 [2022-11-16 19:29:35,817 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:29:35,820 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-16 19:29:35,821 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 68 treesize of output 48 [2022-11-16 19:29:35,835 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 19:29:35,836 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 47 treesize of output 39 [2022-11-16 19:29:35,963 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 52 proven. 18 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-11-16 19:29:35,963 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 19:29:37,226 WARN L176 XnfTransformerHelper]: Simplifying conjuction of 14202 disjunctions. This might take some time... [2022-11-16 19:29:52,189 INFO L192 XnfTransformerHelper]: Simplified to conjuction of 13413 disjunctions.