./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 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60de65fc-2545-4f69-bfaf-098d5fedb1d5/bin/utaipan-eEHZpOm5b7/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60de65fc-2545-4f69-bfaf-098d5fedb1d5/bin/utaipan-eEHZpOm5b7/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60de65fc-2545-4f69-bfaf-098d5fedb1d5/bin/utaipan-eEHZpOm5b7/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60de65fc-2545-4f69-bfaf-098d5fedb1d5/bin/utaipan-eEHZpOm5b7/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_60de65fc-2545-4f69-bfaf-098d5fedb1d5/bin/utaipan-eEHZpOm5b7/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60de65fc-2545-4f69-bfaf-098d5fedb1d5/bin/utaipan-eEHZpOm5b7 --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 --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-11-25 19:02:33,189 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-25 19:02:33,192 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-25 19:02:33,244 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-25 19:02:33,244 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-25 19:02:33,248 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-25 19:02:33,250 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-25 19:02:33,254 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-25 19:02:33,256 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-25 19:02:33,262 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-25 19:02:33,263 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-25 19:02:33,265 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-25 19:02:33,265 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-25 19:02:33,268 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-25 19:02:33,270 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-25 19:02:33,274 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-25 19:02:33,276 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-25 19:02:33,277 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-25 19:02:33,279 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-25 19:02:33,287 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-25 19:02:33,289 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-25 19:02:33,290 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-25 19:02:33,293 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-25 19:02:33,294 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-25 19:02:33,303 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-25 19:02:33,303 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-25 19:02:33,304 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-25 19:02:33,306 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-25 19:02:33,306 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-25 19:02:33,308 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-25 19:02:33,308 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-25 19:02:33,309 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-25 19:02:33,311 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-25 19:02:33,312 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-25 19:02:33,313 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-25 19:02:33,314 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-25 19:02:33,314 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-25 19:02:33,315 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-25 19:02:33,315 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-25 19:02:33,316 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-25 19:02:33,316 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-25 19:02:33,317 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60de65fc-2545-4f69-bfaf-098d5fedb1d5/bin/utaipan-eEHZpOm5b7/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-25 19:02:33,360 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-25 19:02:33,360 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-25 19:02:33,361 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-25 19:02:33,361 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-25 19:02:33,368 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-25 19:02:33,368 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-25 19:02:33,369 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-25 19:02:33,369 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-25 19:02:33,369 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-25 19:02:33,369 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-25 19:02:33,370 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-25 19:02:33,371 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-25 19:02:33,371 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-25 19:02:33,371 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-25 19:02:33,371 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-25 19:02:33,371 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-25 19:02:33,372 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-25 19:02:33,372 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-25 19:02:33,373 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-25 19:02:33,373 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-25 19:02:33,373 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-25 19:02:33,373 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-25 19:02:33,374 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-25 19:02:33,374 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-25 19:02:33,374 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-25 19:02:33,374 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-25 19:02:33,374 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-25 19:02:33,375 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-25 19:02:33,375 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-25 19:02:33,375 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 19:02:33,375 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-25 19:02:33,376 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-25 19:02:33,376 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-25 19:02:33,376 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-25 19:02:33,376 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-25 19:02:33,377 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-25 19:02:33,377 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-25 19:02:33,377 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-25 19:02:33,377 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_60de65fc-2545-4f69-bfaf-098d5fedb1d5/bin/utaipan-eEHZpOm5b7/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60de65fc-2545-4f69-bfaf-098d5fedb1d5/bin/utaipan-eEHZpOm5b7 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f1ac591932d47e9b0b8902b9705db38e4b5e721c8f02110220ca6714b79582bb [2021-11-25 19:02:33,664 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-25 19:02:33,685 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-25 19:02:33,689 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-25 19:02:33,690 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-25 19:02:33,691 INFO L275 PluginConnector]: CDTParser initialized [2021-11-25 19:02:33,692 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60de65fc-2545-4f69-bfaf-098d5fedb1d5/bin/utaipan-eEHZpOm5b7/../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_u8_harness.i [2021-11-25 19:02:33,770 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60de65fc-2545-4f69-bfaf-098d5fedb1d5/bin/utaipan-eEHZpOm5b7/data/d216a8086/f7eb3d3b8b6b4840a691f152b6fe4f1c/FLAG32c18304c [2021-11-25 19:02:34,644 INFO L306 CDTParser]: Found 1 translation units. [2021-11-25 19:02:34,645 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60de65fc-2545-4f69-bfaf-098d5fedb1d5/sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_u8_harness.i [2021-11-25 19:02:34,698 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60de65fc-2545-4f69-bfaf-098d5fedb1d5/bin/utaipan-eEHZpOm5b7/data/d216a8086/f7eb3d3b8b6b4840a691f152b6fe4f1c/FLAG32c18304c [2021-11-25 19:02:35,132 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60de65fc-2545-4f69-bfaf-098d5fedb1d5/bin/utaipan-eEHZpOm5b7/data/d216a8086/f7eb3d3b8b6b4840a691f152b6fe4f1c [2021-11-25 19:02:35,135 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-25 19:02:35,137 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-25 19:02:35,142 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-25 19:02:35,142 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-25 19:02:35,145 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-25 19:02:35,147 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 07:02:35" (1/1) ... [2021-11-25 19:02:35,148 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@86c113b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:02:35, skipping insertion in model container [2021-11-25 19:02:35,148 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 07:02:35" (1/1) ... [2021-11-25 19:02:35,155 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-25 19:02:35,275 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-25 19:02:35,649 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_60de65fc-2545-4f69-bfaf-098d5fedb1d5/sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_u8_harness.i[4497,4510] [2021-11-25 19:02:35,657 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_60de65fc-2545-4f69-bfaf-098d5fedb1d5/sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_u8_harness.i[4557,4570] [2021-11-25 19:02:36,741 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 19:02:36,742 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 19:02:36,743 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 19:02:36,744 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 19:02:36,745 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 19:02:36,758 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 19:02:36,759 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 19:02:36,761 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 19:02:36,761 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 19:02:37,199 WARN L610 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-25 19:02:37,200 WARN L610 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-25 19:02:37,201 WARN L610 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-25 19:02:37,218 WARN L610 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-25 19:02:37,220 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-25 19:02:37,220 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-25 19:02:37,225 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-25 19:02:37,227 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-25 19:02:37,230 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-25 19:02:37,233 WARN L610 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-25 19:02:37,480 WARN L610 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-25 19:02:37,581 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 19:02:37,581 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 19:02:37,679 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 19:02:37,744 INFO L203 MainTranslator]: Completed pre-run [2021-11-25 19:02:37,777 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_60de65fc-2545-4f69-bfaf-098d5fedb1d5/sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_u8_harness.i[4497,4510] [2021-11-25 19:02:37,778 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_60de65fc-2545-4f69-bfaf-098d5fedb1d5/sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_u8_harness.i[4557,4570] [2021-11-25 19:02:37,822 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 19:02:37,822 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 19:02:37,823 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 19:02:37,823 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 19:02:37,824 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 19:02:37,834 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 19:02:37,835 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 19:02:37,836 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 19:02:37,837 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 19:02:37,882 WARN L610 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-25 19:02:37,882 WARN L610 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-25 19:02:37,883 WARN L610 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-25 19:02:37,884 WARN L610 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-25 19:02:37,885 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-25 19:02:37,885 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-25 19:02:37,886 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-25 19:02:37,889 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-25 19:02:37,889 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-25 19:02:37,890 WARN L610 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-25 19:02:37,923 WARN L610 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-25 19:02:38,092 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 19:02:38,109 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 19:02:38,154 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 19:02:38,390 INFO L208 MainTranslator]: Completed translation [2021-11-25 19:02:38,391 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:02:38 WrapperNode [2021-11-25 19:02:38,391 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-25 19:02:38,392 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-25 19:02:38,393 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-25 19:02:38,393 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-25 19:02:38,400 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:02:38" (1/1) ... [2021-11-25 19:02:38,512 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:02:38" (1/1) ... [2021-11-25 19:02:38,619 INFO L137 Inliner]: procedures = 690, calls = 2631, calls flagged for inlining = 61, calls inlined = 10, statements flattened = 948 [2021-11-25 19:02:38,620 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-25 19:02:38,621 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-25 19:02:38,621 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-25 19:02:38,621 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-25 19:02:38,629 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:02:38" (1/1) ... [2021-11-25 19:02:38,630 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:02:38" (1/1) ... [2021-11-25 19:02:38,645 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:02:38" (1/1) ... [2021-11-25 19:02:38,646 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:02:38" (1/1) ... [2021-11-25 19:02:38,703 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:02:38" (1/1) ... [2021-11-25 19:02:38,708 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:02:38" (1/1) ... [2021-11-25 19:02:38,715 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:02:38" (1/1) ... [2021-11-25 19:02:38,728 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-25 19:02:38,728 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-25 19:02:38,729 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-25 19:02:38,729 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-25 19:02:38,730 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:02:38" (1/1) ... [2021-11-25 19:02:38,737 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 19:02:38,759 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60de65fc-2545-4f69-bfaf-098d5fedb1d5/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 19:02:38,814 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60de65fc-2545-4f69-bfaf-098d5fedb1d5/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-25 19:02:38,843 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60de65fc-2545-4f69-bfaf-098d5fedb1d5/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-25 19:02:38,861 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_cursor_read [2021-11-25 19:02:38,862 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_cursor_read [2021-11-25 19:02:38,862 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_cursor_is_valid [2021-11-25 19:02:38,863 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_cursor_is_valid [2021-11-25 19:02:38,863 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-25 19:02:38,864 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2021-11-25 19:02:38,864 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2021-11-25 19:02:38,865 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real [2021-11-25 19:02:38,865 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-25 19:02:38,865 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-25 19:02:38,866 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-25 19:02:38,866 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-25 19:02:38,866 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-25 19:02:38,866 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-25 19:02:38,867 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-25 19:02:38,867 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-25 19:02:38,867 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-25 19:02:38,867 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-25 19:02:38,867 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-25 19:02:38,868 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-25 19:02:38,868 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2021-11-25 19:02:38,868 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2021-11-25 19:02:38,869 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-25 19:02:38,869 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-25 19:02:38,869 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-11-25 19:02:38,870 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-11-25 19:02:38,870 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-25 19:02:38,870 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-25 19:02:38,870 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-25 19:02:38,870 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2021-11-25 19:02:38,870 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2021-11-25 19:02:38,871 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-25 19:02:38,871 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~real [2021-11-25 19:02:38,871 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-25 19:02:39,182 INFO L236 CfgBuilder]: Building ICFG [2021-11-25 19:02:39,184 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-25 19:02:41,260 INFO L277 CfgBuilder]: Performing block encoding [2021-11-25 19:02:41,443 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-25 19:02:41,443 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-25 19:02:41,446 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 07:02:41 BoogieIcfgContainer [2021-11-25 19:02:41,446 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-25 19:02:41,447 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-25 19:02:41,448 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-25 19:02:41,451 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-25 19:02:41,451 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 07:02:35" (1/3) ... [2021-11-25 19:02:41,452 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f55ff6c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 07:02:41, skipping insertion in model container [2021-11-25 19:02:41,453 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:02:38" (2/3) ... [2021-11-25 19:02:41,453 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f55ff6c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 07:02:41, skipping insertion in model container [2021-11-25 19:02:41,454 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 07:02:41" (3/3) ... [2021-11-25 19:02:41,462 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_byte_cursor_read_u8_harness.i [2021-11-25 19:02:41,467 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-25 19:02:41,469 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-25 19:02:41,531 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-25 19:02:41,547 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 [2021-11-25 19:02:41,547 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-25 19:02:41,597 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) [2021-11-25 19:02:41,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-11-25 19:02:41,605 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:02:41,605 INFO L514 BasicCegarLoop]: 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] [2021-11-25 19:02:41,606 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 19:02:41,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:02:41,611 INFO L85 PathProgramCache]: Analyzing trace with hash 1890930872, now seen corresponding path program 1 times [2021-11-25 19:02:41,621 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:02:41,621 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1553728073] [2021-11-25 19:02:41,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:02:41,622 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:02:44,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:02:45,472 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 2 proven. 16 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2021-11-25 19:02:45,473 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:02:45,473 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1553728073] [2021-11-25 19:02:45,474 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1553728073] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 19:02:45,474 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2028121690] [2021-11-25 19:02:45,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:02:45,474 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 19:02:45,475 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60de65fc-2545-4f69-bfaf-098d5fedb1d5/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 19:02:45,478 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60de65fc-2545-4f69-bfaf-098d5fedb1d5/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 19:02:45,504 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60de65fc-2545-4f69-bfaf-098d5fedb1d5/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-25 19:02:46,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:02:46,161 INFO L263 TraceCheckSpWp]: Trace formula consists of 2707 conjuncts, 134 conjunts are in the unsatisfiable core [2021-11-25 19:02:46,184 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 19:02:46,529 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 13 treesize of output 9 [2021-11-25 19:02:46,541 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 13 treesize of output 9 [2021-11-25 19:02:46,548 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 6 treesize of output 5 [2021-11-25 19:02:52,798 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 52 proven. 18 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2021-11-25 19:02:52,798 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 19:02:54,079 WARN L176 XnfTransformerHelper]: Simplifying conjuction of 13430 disjunctions. This might take some time... [2021-11-25 19:03:06,417 INFO L192 XnfTransformerHelper]: Simplified to conjuction of 13413 disjunctions.