./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_advance_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 53f42b1a Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68e31973-de7e-40ae-b5f9-bd56024de57b/bin/utaipan-TEXQjIfE4P/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68e31973-de7e-40ae-b5f9-bd56024de57b/bin/utaipan-TEXQjIfE4P/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68e31973-de7e-40ae-b5f9-bd56024de57b/bin/utaipan-TEXQjIfE4P/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68e31973-de7e-40ae-b5f9-bd56024de57b/bin/utaipan-TEXQjIfE4P/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_advance_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68e31973-de7e-40ae-b5f9-bd56024de57b/bin/utaipan-TEXQjIfE4P/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68e31973-de7e-40ae-b5f9-bd56024de57b/bin/utaipan-TEXQjIfE4P --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash f26a5d85d152e590b5f8a93f229efbb28bdd5e77c34d7106bb5825fc4b732cf6 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-20 22:45:57,305 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-20 22:45:57,307 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-20 22:45:57,356 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-20 22:45:57,356 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-20 22:45:57,360 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-20 22:45:57,362 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-20 22:45:57,365 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-20 22:45:57,368 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-20 22:45:57,374 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-20 22:45:57,375 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-20 22:45:57,376 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-20 22:45:57,376 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-20 22:45:57,377 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-20 22:45:57,378 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-20 22:45:57,379 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-20 22:45:57,379 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-20 22:45:57,380 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-20 22:45:57,382 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-20 22:45:57,384 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-20 22:45:57,386 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-20 22:45:57,387 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-20 22:45:57,389 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-20 22:45:57,390 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-20 22:45:57,393 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-20 22:45:57,393 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-20 22:45:57,394 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-20 22:45:57,395 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-20 22:45:57,395 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-20 22:45:57,396 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-20 22:45:57,397 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-20 22:45:57,398 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-20 22:45:57,398 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-20 22:45:57,399 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-20 22:45:57,401 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-20 22:45:57,401 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-20 22:45:57,402 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-20 22:45:57,402 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-20 22:45:57,402 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-20 22:45:57,403 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-20 22:45:57,404 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-20 22:45:57,405 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68e31973-de7e-40ae-b5f9-bd56024de57b/bin/utaipan-TEXQjIfE4P/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-20 22:45:57,432 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-20 22:45:57,432 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-20 22:45:57,432 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-20 22:45:57,433 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-20 22:45:57,433 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-20 22:45:57,434 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-20 22:45:57,434 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-20 22:45:57,434 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-20 22:45:57,434 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-20 22:45:57,434 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-20 22:45:57,435 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-20 22:45:57,435 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-20 22:45:57,435 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-20 22:45:57,435 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-20 22:45:57,435 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-20 22:45:57,436 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-20 22:45:57,436 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-20 22:45:57,436 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-20 22:45:57,437 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-20 22:45:57,437 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-20 22:45:57,437 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-20 22:45:57,437 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-20 22:45:57,437 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-20 22:45:57,438 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-20 22:45:57,438 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-20 22:45:57,438 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-20 22:45:57,438 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-20 22:45:57,438 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-20 22:45:57,439 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-20 22:45:57,439 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 22:45:57,439 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-20 22:45:57,439 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-20 22:45:57,439 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-20 22:45:57,439 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-20 22:45:57,440 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-20 22:45:57,440 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-20 22:45:57,440 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-20 22:45:57,440 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-20 22:45:57,440 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_68e31973-de7e-40ae-b5f9-bd56024de57b/bin/utaipan-TEXQjIfE4P/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68e31973-de7e-40ae-b5f9-bd56024de57b/bin/utaipan-TEXQjIfE4P Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f26a5d85d152e590b5f8a93f229efbb28bdd5e77c34d7106bb5825fc4b732cf6 [2021-11-20 22:45:57,711 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-20 22:45:57,748 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-20 22:45:57,750 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-20 22:45:57,751 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-20 22:45:57,752 INFO L275 PluginConnector]: CDTParser initialized [2021-11-20 22:45:57,753 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68e31973-de7e-40ae-b5f9-bd56024de57b/bin/utaipan-TEXQjIfE4P/../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_advance_harness.i [2021-11-20 22:45:57,837 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68e31973-de7e-40ae-b5f9-bd56024de57b/bin/utaipan-TEXQjIfE4P/data/2aa5185d1/c59817e82f5449a99a8ffe89fa451f82/FLAG562cf2cd8 [2021-11-20 22:45:58,660 INFO L306 CDTParser]: Found 1 translation units. [2021-11-20 22:45:58,660 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68e31973-de7e-40ae-b5f9-bd56024de57b/sv-benchmarks/c/aws-c-common/aws_byte_cursor_advance_harness.i [2021-11-20 22:45:58,704 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68e31973-de7e-40ae-b5f9-bd56024de57b/bin/utaipan-TEXQjIfE4P/data/2aa5185d1/c59817e82f5449a99a8ffe89fa451f82/FLAG562cf2cd8 [2021-11-20 22:45:59,159 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68e31973-de7e-40ae-b5f9-bd56024de57b/bin/utaipan-TEXQjIfE4P/data/2aa5185d1/c59817e82f5449a99a8ffe89fa451f82 [2021-11-20 22:45:59,175 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-20 22:45:59,176 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-20 22:45:59,179 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-20 22:45:59,180 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-20 22:45:59,183 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-20 22:45:59,184 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:45:59" (1/1) ... [2021-11-20 22:45:59,186 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6328af4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:45:59, skipping insertion in model container [2021-11-20 22:45:59,186 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:45:59" (1/1) ... [2021-11-20 22:45:59,192 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-20 22:45:59,318 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-20 22:45:59,564 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_68e31973-de7e-40ae-b5f9-bd56024de57b/sv-benchmarks/c/aws-c-common/aws_byte_cursor_advance_harness.i[4497,4510] [2021-11-20 22:45:59,571 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_68e31973-de7e-40ae-b5f9-bd56024de57b/sv-benchmarks/c/aws-c-common/aws_byte_cursor_advance_harness.i[4557,4570] [2021-11-20 22:46:00,623 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 22:46:00,624 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 22:46:00,625 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 22:46:00,626 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 22:46:00,627 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 22:46:00,642 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 22:46:00,643 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 22:46:00,645 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 22:46:00,646 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 22:46:01,127 WARN L610 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-20 22:46:01,129 WARN L610 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-20 22:46:01,130 WARN L610 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-20 22:46:01,131 WARN L610 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-20 22:46:01,132 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-20 22:46:01,133 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-20 22:46:01,134 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-20 22:46:01,138 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-20 22:46:01,139 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-20 22:46:01,139 WARN L610 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-20 22:46:01,292 WARN L610 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-20 22:46:01,381 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 22:46:01,391 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 22:46:01,504 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 22:46:01,577 INFO L203 MainTranslator]: Completed pre-run [2021-11-20 22:46:01,608 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_68e31973-de7e-40ae-b5f9-bd56024de57b/sv-benchmarks/c/aws-c-common/aws_byte_cursor_advance_harness.i[4497,4510] [2021-11-20 22:46:01,609 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_68e31973-de7e-40ae-b5f9-bd56024de57b/sv-benchmarks/c/aws-c-common/aws_byte_cursor_advance_harness.i[4557,4570] [2021-11-20 22:46:01,654 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 22:46:01,655 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 22:46:01,655 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 22:46:01,656 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 22:46:01,660 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 22:46:01,678 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 22:46:01,680 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 22:46:01,681 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 22:46:01,684 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 22:46:01,730 WARN L610 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-20 22:46:01,731 WARN L610 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-20 22:46:01,731 WARN L610 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-20 22:46:01,732 WARN L610 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-20 22:46:01,733 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-20 22:46:01,734 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-20 22:46:01,734 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-20 22:46:01,737 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-20 22:46:01,738 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-20 22:46:01,738 WARN L610 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-20 22:46:01,805 WARN L610 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-20 22:46:01,879 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 22:46:01,879 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 22:46:01,917 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 22:46:02,204 INFO L208 MainTranslator]: Completed translation [2021-11-20 22:46:02,204 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:46:02 WrapperNode [2021-11-20 22:46:02,205 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-20 22:46:02,206 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-20 22:46:02,206 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-20 22:46:02,206 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-20 22:46:02,245 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:46:02" (1/1) ... [2021-11-20 22:46:02,393 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:46:02" (1/1) ... [2021-11-20 22:46:02,522 INFO L137 Inliner]: procedures = 690, calls = 2642, calls flagged for inlining = 60, calls inlined = 7, statements flattened = 882 [2021-11-20 22:46:02,523 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-20 22:46:02,524 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-20 22:46:02,524 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-20 22:46:02,524 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-20 22:46:02,532 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:46:02" (1/1) ... [2021-11-20 22:46:02,533 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:46:02" (1/1) ... [2021-11-20 22:46:02,546 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:46:02" (1/1) ... [2021-11-20 22:46:02,547 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:46:02" (1/1) ... [2021-11-20 22:46:02,599 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:46:02" (1/1) ... [2021-11-20 22:46:02,614 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:46:02" (1/1) ... [2021-11-20 22:46:02,620 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:46:02" (1/1) ... [2021-11-20 22:46:02,637 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-20 22:46:02,646 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-20 22:46:02,646 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-20 22:46:02,646 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-20 22:46:02,647 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:46:02" (1/1) ... [2021-11-20 22:46:02,654 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 22:46:02,664 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68e31973-de7e-40ae-b5f9-bd56024de57b/bin/utaipan-TEXQjIfE4P/z3 [2021-11-20 22:46:02,677 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68e31973-de7e-40ae-b5f9-bd56024de57b/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-20 22:46:02,693 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68e31973-de7e-40ae-b5f9-bd56024de57b/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-20 22:46:02,725 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_cursor_is_valid [2021-11-20 22:46:02,726 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_cursor_is_valid [2021-11-20 22:46:02,726 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-20 22:46:02,727 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2021-11-20 22:46:02,727 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2021-11-20 22:46:02,728 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-20 22:46:02,728 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-20 22:46:02,729 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-20 22:46:02,729 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-20 22:46:02,729 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-20 22:46:02,730 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-20 22:46:02,730 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-20 22:46:02,730 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-20 22:46:02,730 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2021-11-20 22:46:02,731 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2021-11-20 22:46:02,731 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2021-11-20 22:46:02,731 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2021-11-20 22:46:02,731 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-11-20 22:46:02,731 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-11-20 22:46:02,732 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-20 22:46:02,732 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-20 22:46:02,732 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-20 22:46:02,733 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-20 22:46:02,733 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-20 22:46:03,090 INFO L236 CfgBuilder]: Building ICFG [2021-11-20 22:46:03,092 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-20 22:46:04,764 INFO L277 CfgBuilder]: Performing block encoding [2021-11-20 22:46:04,947 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-20 22:46:04,947 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-20 22:46:04,950 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:46:04 BoogieIcfgContainer [2021-11-20 22:46:04,950 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-20 22:46:04,952 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-20 22:46:04,952 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-20 22:46:04,956 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-20 22:46:04,956 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 10:45:59" (1/3) ... [2021-11-20 22:46:04,957 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ccc1270 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 10:46:04, skipping insertion in model container [2021-11-20 22:46:04,957 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:46:02" (2/3) ... [2021-11-20 22:46:04,958 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ccc1270 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 10:46:04, skipping insertion in model container [2021-11-20 22:46:04,958 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:46:04" (3/3) ... [2021-11-20 22:46:04,960 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_byte_cursor_advance_harness.i [2021-11-20 22:46:04,969 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-20 22:46:04,969 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-20 22:46:05,035 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-20 22:46:05,051 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 [2021-11-20 22:46:05,052 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-20 22:46:05,070 INFO L276 IsEmpty]: Start isEmpty. Operand has 65 states, 35 states have (on average 1.2) internal successors, (42), 36 states have internal predecessors, (42), 22 states have call successors, (22), 6 states have call predecessors, (22), 6 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2021-11-20 22:46:05,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-11-20 22:46:05,076 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 22:46:05,077 INFO L514 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 22:46:05,077 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 22:46:05,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 22:46:05,083 INFO L85 PathProgramCache]: Analyzing trace with hash -145334995, now seen corresponding path program 1 times [2021-11-20 22:46:05,092 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 22:46:05,093 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1222544606] [2021-11-20 22:46:05,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 22:46:05,094 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 22:46:06,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 22:46:08,243 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-20 22:46:08,243 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 22:46:08,244 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1222544606] [2021-11-20 22:46:08,244 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1222544606] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 22:46:08,245 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1736835258] [2021-11-20 22:46:08,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 22:46:08,245 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 22:46:08,245 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68e31973-de7e-40ae-b5f9-bd56024de57b/bin/utaipan-TEXQjIfE4P/z3 [2021-11-20 22:46:08,250 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68e31973-de7e-40ae-b5f9-bd56024de57b/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 22:46:08,259 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68e31973-de7e-40ae-b5f9-bd56024de57b/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-20 22:46:17,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 22:46:17,711 INFO L263 TraceCheckSpWp]: Trace formula consists of 2416 conjuncts, 96 conjunts are in the unsatisfiable core [2021-11-20 22:46:17,731 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 22:46:17,804 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 [2021-11-20 22:46:18,146 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 [2021-11-20 22:46:18,154 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 [2021-11-20 22:46:18,162 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 [2021-11-20 22:46:19,685 INFO L354 Elim1Store]: treesize reduction 60, result has 24.1 percent of original size [2021-11-20 22:46:19,691 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 29 treesize of output 37 [2021-11-20 22:46:20,006 INFO L354 Elim1Store]: treesize reduction 78, result has 26.4 percent of original size [2021-11-20 22:46:20,007 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 9 case distinctions, treesize of input 39 treesize of output 57 [2021-11-20 22:46:24,324 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 22:46:25,749 INFO L354 Elim1Store]: treesize reduction 336, result has 13.2 percent of original size [2021-11-20 22:46:25,750 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 10 case distinctions, treesize of input 550 treesize of output 574 [2021-11-20 22:46:25,816 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Some non-self update cases but no top-level DER relation [2021-11-20 22:46:25,817 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1337065664] [2021-11-20 22:46:25,842 INFO L159 IcfgInterpreter]: Started Sifa with 24 locations of interest [2021-11-20 22:46:25,842 INFO L166 IcfgInterpreter]: Building call graph [2021-11-20 22:46:25,847 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-20 22:46:25,852 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-20 22:46:25,853 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-20 22:46:32,190 FATAL L? ?]: Ignoring exception! java.lang.IllegalStateException: ManagedScript already locked by de.uni_freiburg.informatik.ultimate.lib.smtlibutils.IncrementalPlicationChecker@b5d1a61 at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.ManagedScript.lock(ManagedScript.java:82) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.IncrementalPlicationChecker.assertLhs(IncrementalPlicationChecker.java:103) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.IncrementalPlicationChecker.checkPlication(IncrementalPlicationChecker.java:135) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.arrays.ArrayIndexEqualityManager.(ArrayIndexEqualityManager.java:92) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.ElimStorePlain.applyComplexEliminationRules(ElimStorePlain.java:388) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminate(DualJunctionSaa.java:140) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminateOne(DualJunctionSaa.java:115) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryExhaustivelyToEliminate(DualJunctionSaa.java:93) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminate(DualJunctionSaa.java:88) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToEliminateOne(QuantifierPusher.java:903) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.applyNewEliminationTechniquesExhaustively(QuantifierPusher.java:865) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.applyDualJunctionEliminationTechniques(QuantifierPusher.java:783) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToPushOverDualFiniteConnective2(QuantifierPusher.java:425) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToPushOverDualFiniteConnective(QuantifierPusher.java:355) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:162) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:1) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine$ApplicationTermTask.doStep(TermContextTransformationEngine.java:169) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:77) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:61) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:243) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:233) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.PartialQuantifierElimination.eliminate(PartialQuantifierElimination.java:92) at de.uni_freiburg.informatik.ultimate.lib.sifa.SymbolicTools$EliminatingTermDomainOperationProvider.newQuantifier(SymbolicTools.java:278) at de.uni_freiburg.informatik.ultimate.lib.sifa.SymbolicTools$EliminatingTermDomainOperationProvider.projectExistentially(SymbolicTools.java:264) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.TermDomainOperationProvider.projectExistentially(TermDomainOperationProvider.java:1) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateTransformer.strongestPostcondition(PredicateTransformer.java:131) at de.uni_freiburg.informatik.ultimate.lib.sifa.SymbolicTools.post(SymbolicTools.java:116) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretInternal(DagInterpreter.java:227) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTransAndStoreLoiPred(DagInterpreter.java:209) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTrans(DagInterpreter.java:187) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:165) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:123) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpretLoisInProcedure(IcfgInterpreter.java:136) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpret(IcfgInterpreter.java:127) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:102) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:67) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:268) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:150) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:140) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:88) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:610) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:413) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:393) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:263) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:176) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-20 22:46:32,195 INFO L186 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2021-11-20 22:46:32,196 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2021-11-20 22:46:32,197 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1276950668] [2021-11-20 22:46:32,198 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2021-11-20 22:46:32,203 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-11-20 22:46:32,204 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 22:46:32,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-11-20 22:46:32,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=663, Unknown=0, NotChecked=0, Total=756 [2021-11-20 22:46:32,254 INFO L87 Difference]: Start difference. First operand has 65 states, 35 states have (on average 1.2) internal successors, (42), 36 states have internal predecessors, (42), 22 states have call successors, (22), 6 states have call predecessors, (22), 6 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) Second operand has 16 states, 9 states have (on average 1.7777777777777777) internal successors, (16), 13 states have internal predecessors, (16), 6 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2021-11-20 22:46:32,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-20 22:46:32,266 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 7 SyntacticMatches, 5 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 168 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=93, Invalid=663, Unknown=0, NotChecked=0, Total=756 [2021-11-20 22:46:32,273 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-20 22:46:32,275 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-20 22:46:32,330 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68e31973-de7e-40ae-b5f9-bd56024de57b/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-20 22:46:32,501 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68e31973-de7e-40ae-b5f9-bd56024de57b/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2021-11-20 22:46:32,501 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.IllegalStateException: ManagedScript already locked by de.uni_freiburg.informatik.ultimate.lib.smtlibutils.IncrementalPlicationChecker@b5d1a61 at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.ManagedScript.lock(ManagedScript.java:82) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.IncrementalHoareTripleChecker.assertCodeBlock(IncrementalHoareTripleChecker.java:359) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.IncrementalHoareTripleChecker.prepareAssertionStackAndAddTransition(IncrementalHoareTripleChecker.java:206) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.IncrementalHoareTripleChecker.checkInternal(IncrementalHoareTripleChecker.java:131) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.ChainingHoareTripleChecker$ProtectedHtc.checkInternal(ChainingHoareTripleChecker.java:436) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.ChainingHoareTripleChecker.checkInternal(ChainingHoareTripleChecker.java:98) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.CachingHoareTripleChecker.checkInternal(CachingHoareTripleChecker.java:95) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton$InternalSuccessorComputationHelper.computeSuccWithSolver(AbstractInterpolantAutomaton.java:357) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.BasicAbstractInterpolantAutomaton.chooseFalseSuccessor2(BasicAbstractInterpolantAutomaton.java:107) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.BasicAbstractInterpolantAutomaton.computeSuccs(BasicAbstractInterpolantAutomaton.java:73) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.BasicAbstractInterpolantAutomaton.computeSuccs(BasicAbstractInterpolantAutomaton.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton.internalSuccessors(AbstractInterpolantAutomaton.java:233) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton.internalSuccessors(AbstractInterpolantAutomaton.java:1) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.TotalizeNwa.internalSuccessors(TotalizeNwa.java:213) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ComplementDeterministicNwa.internalSuccessors(ComplementDeterministicNwa.java:121) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ProductNwa.internalSuccessors(ProductNwa.java:216) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ProductNwa.internalSuccessors(ProductNwa.java:208) at de.uni_freiburg.informatik.ultimate.automata.nestedword.reachablestates.NestedWordAutomatonReachableStates$ReachableStatesComputation.addInternalsAndSuccessors(NestedWordAutomatonReachableStates.java:1058) at de.uni_freiburg.informatik.ultimate.automata.nestedword.reachablestates.NestedWordAutomatonReachableStates$ReachableStatesComputation.(NestedWordAutomatonReachableStates.java:960) at de.uni_freiburg.informatik.ultimate.automata.nestedword.reachablestates.NestedWordAutomatonReachableStates.(NestedWordAutomatonReachableStates.java:182) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.Difference.computeDifference(Difference.java:137) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.Difference.(Difference.java:90) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.computeAutomataDifference(BasicCegarLoop.java:868) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.refineAbstraction(BasicCegarLoop.java:784) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.refineAbstractionInternal(AbstractCegarLoop.java:462) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:420) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:393) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:263) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:176) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-20 22:46:32,507 INFO L158 Benchmark]: Toolchain (without parser) took 33330.24ms. Allocated memory was 104.9MB in the beginning and 448.8MB in the end (delta: 343.9MB). Free memory was 75.1MB in the beginning and 224.2MB in the end (delta: -149.1MB). Peak memory consumption was 194.9MB. Max. memory is 16.1GB. [2021-11-20 22:46:32,507 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 86.0MB. Free memory was 60.2MB in the beginning and 60.1MB in the end (delta: 76.9kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-20 22:46:32,508 INFO L158 Benchmark]: CACSL2BoogieTranslator took 3025.85ms. Allocated memory was 104.9MB in the beginning and 157.3MB in the end (delta: 52.4MB). Free memory was 75.1MB in the beginning and 88.1MB in the end (delta: -13.0MB). Peak memory consumption was 80.4MB. Max. memory is 16.1GB. [2021-11-20 22:46:32,508 INFO L158 Benchmark]: Boogie Procedure Inliner took 317.31ms. Allocated memory is still 157.3MB. Free memory was 88.1MB in the beginning and 99.6MB in the end (delta: -11.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-20 22:46:32,509 INFO L158 Benchmark]: Boogie Preprocessor took 121.20ms. Allocated memory is still 157.3MB. Free memory was 99.6MB in the beginning and 93.4MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-11-20 22:46:32,514 INFO L158 Benchmark]: RCFGBuilder took 2304.31ms. Allocated memory was 157.3MB in the beginning and 188.7MB in the end (delta: 31.5MB). Free memory was 93.4MB in the beginning and 140.6MB in the end (delta: -47.3MB). Peak memory consumption was 47.2MB. Max. memory is 16.1GB. [2021-11-20 22:46:32,515 INFO L158 Benchmark]: TraceAbstraction took 27554.07ms. Allocated memory was 188.7MB in the beginning and 448.8MB in the end (delta: 260.0MB). Free memory was 140.6MB in the beginning and 224.2MB in the end (delta: -83.5MB). Peak memory consumption was 176.5MB. Max. memory is 16.1GB. [2021-11-20 22:46:32,519 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 86.0MB. Free memory was 60.2MB in the beginning and 60.1MB in the end (delta: 76.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 3025.85ms. Allocated memory was 104.9MB in the beginning and 157.3MB in the end (delta: 52.4MB). Free memory was 75.1MB in the beginning and 88.1MB in the end (delta: -13.0MB). Peak memory consumption was 80.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 317.31ms. Allocated memory is still 157.3MB. Free memory was 88.1MB in the beginning and 99.6MB in the end (delta: -11.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 121.20ms. Allocated memory is still 157.3MB. Free memory was 99.6MB in the beginning and 93.4MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * RCFGBuilder took 2304.31ms. Allocated memory was 157.3MB in the beginning and 188.7MB in the end (delta: 31.5MB). Free memory was 93.4MB in the beginning and 140.6MB in the end (delta: -47.3MB). Peak memory consumption was 47.2MB. Max. memory is 16.1GB. * TraceAbstraction took 27554.07ms. Allocated memory was 188.7MB in the beginning and 448.8MB in the end (delta: 260.0MB). Free memory was 140.6MB in the beginning and 224.2MB in the end (delta: -83.5MB). Peak memory consumption was 176.5MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: IllegalStateException: ManagedScript already locked by de.uni_freiburg.informatik.ultimate.lib.smtlibutils.IncrementalPlicationChecker@b5d1a61 de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: IllegalStateException: ManagedScript already locked by de.uni_freiburg.informatik.ultimate.lib.smtlibutils.IncrementalPlicationChecker@b5d1a61: de.uni_freiburg.informatik.ultimate.lib.smtlibutils.ManagedScript.lock(ManagedScript.java:82) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-11-20 22:46:32,575 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68e31973-de7e-40ae-b5f9-bd56024de57b/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68e31973-de7e-40ae-b5f9-bd56024de57b/bin/utaipan-TEXQjIfE4P/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68e31973-de7e-40ae-b5f9-bd56024de57b/bin/utaipan-TEXQjIfE4P/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68e31973-de7e-40ae-b5f9-bd56024de57b/bin/utaipan-TEXQjIfE4P/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68e31973-de7e-40ae-b5f9-bd56024de57b/bin/utaipan-TEXQjIfE4P/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_advance_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68e31973-de7e-40ae-b5f9-bd56024de57b/bin/utaipan-TEXQjIfE4P/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68e31973-de7e-40ae-b5f9-bd56024de57b/bin/utaipan-TEXQjIfE4P --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash f26a5d85d152e590b5f8a93f229efbb28bdd5e77c34d7106bb5825fc4b732cf6 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-20 22:46:34,884 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-20 22:46:34,888 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-20 22:46:34,946 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-20 22:46:34,947 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-20 22:46:34,952 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-20 22:46:34,954 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-20 22:46:34,958 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-20 22:46:34,962 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-20 22:46:34,972 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-20 22:46:34,973 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-20 22:46:34,975 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-20 22:46:34,976 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-20 22:46:34,978 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-20 22:46:34,980 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-20 22:46:34,986 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-20 22:46:34,987 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-20 22:46:34,988 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-20 22:46:34,990 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-20 22:46:35,006 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-20 22:46:35,008 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-20 22:46:35,012 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-20 22:46:35,014 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-20 22:46:35,016 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-20 22:46:35,023 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-20 22:46:35,023 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-20 22:46:35,023 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-20 22:46:35,026 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-20 22:46:35,026 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-20 22:46:35,027 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-20 22:46:35,028 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-20 22:46:35,028 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-20 22:46:35,030 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-20 22:46:35,031 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-20 22:46:35,033 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-20 22:46:35,033 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-20 22:46:35,034 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-20 22:46:35,034 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-20 22:46:35,034 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-20 22:46:35,036 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-20 22:46:35,036 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-20 22:46:35,041 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68e31973-de7e-40ae-b5f9-bd56024de57b/bin/utaipan-TEXQjIfE4P/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-20 22:46:35,088 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-20 22:46:35,088 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-20 22:46:35,089 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-20 22:46:35,089 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-20 22:46:35,090 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-20 22:46:35,090 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-20 22:46:35,090 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-20 22:46:35,090 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-20 22:46:35,091 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-20 22:46:35,091 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-20 22:46:35,092 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-20 22:46:35,092 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-20 22:46:35,094 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-20 22:46:35,094 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-20 22:46:35,094 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-20 22:46:35,094 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-20 22:46:35,094 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-20 22:46:35,095 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-20 22:46:35,095 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-20 22:46:35,095 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-20 22:46:35,095 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-20 22:46:35,095 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-20 22:46:35,096 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-20 22:46:35,096 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-20 22:46:35,096 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-20 22:46:35,096 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 22:46:35,096 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-20 22:46:35,097 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-20 22:46:35,097 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-20 22:46:35,097 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-20 22:46:35,097 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-20 22:46:35,097 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-20 22:46:35,098 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-20 22:46:35,098 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-20 22:46:35,098 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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_68e31973-de7e-40ae-b5f9-bd56024de57b/bin/utaipan-TEXQjIfE4P/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68e31973-de7e-40ae-b5f9-bd56024de57b/bin/utaipan-TEXQjIfE4P Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f26a5d85d152e590b5f8a93f229efbb28bdd5e77c34d7106bb5825fc4b732cf6 [2021-11-20 22:46:35,468 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-20 22:46:35,503 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-20 22:46:35,507 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-20 22:46:35,510 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-20 22:46:35,510 INFO L275 PluginConnector]: CDTParser initialized [2021-11-20 22:46:35,512 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68e31973-de7e-40ae-b5f9-bd56024de57b/bin/utaipan-TEXQjIfE4P/../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_advance_harness.i [2021-11-20 22:46:35,579 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68e31973-de7e-40ae-b5f9-bd56024de57b/bin/utaipan-TEXQjIfE4P/data/121e41e13/df00d57882814413ba02ec94a070da07/FLAG644419002 [2021-11-20 22:46:36,505 INFO L306 CDTParser]: Found 1 translation units. [2021-11-20 22:46:36,506 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68e31973-de7e-40ae-b5f9-bd56024de57b/sv-benchmarks/c/aws-c-common/aws_byte_cursor_advance_harness.i [2021-11-20 22:46:36,557 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68e31973-de7e-40ae-b5f9-bd56024de57b/bin/utaipan-TEXQjIfE4P/data/121e41e13/df00d57882814413ba02ec94a070da07/FLAG644419002 [2021-11-20 22:46:36,947 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68e31973-de7e-40ae-b5f9-bd56024de57b/bin/utaipan-TEXQjIfE4P/data/121e41e13/df00d57882814413ba02ec94a070da07 [2021-11-20 22:46:36,950 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-20 22:46:36,951 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-20 22:46:36,955 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-20 22:46:36,956 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-20 22:46:36,959 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-20 22:46:36,960 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:46:36" (1/1) ... [2021-11-20 22:46:36,961 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11bab4b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:46:36, skipping insertion in model container [2021-11-20 22:46:36,961 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:46:36" (1/1) ... [2021-11-20 22:46:36,968 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-20 22:46:37,114 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-20 22:46:37,428 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_68e31973-de7e-40ae-b5f9-bd56024de57b/sv-benchmarks/c/aws-c-common/aws_byte_cursor_advance_harness.i[4497,4510] [2021-11-20 22:46:37,441 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_68e31973-de7e-40ae-b5f9-bd56024de57b/sv-benchmarks/c/aws-c-common/aws_byte_cursor_advance_harness.i[4557,4570] [2021-11-20 22:46:38,613 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 22:46:38,615 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 22:46:38,615 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 22:46:38,617 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 22:46:38,618 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 22:46:38,638 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 22:46:38,639 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 22:46:38,641 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 22:46:38,642 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 22:46:39,079 WARN L610 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-20 22:46:39,081 WARN L610 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-20 22:46:39,082 WARN L610 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-20 22:46:39,083 WARN L610 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-20 22:46:39,085 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-20 22:46:39,098 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-20 22:46:39,105 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-20 22:46:39,106 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-20 22:46:39,107 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-20 22:46:39,107 WARN L610 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-20 22:46:39,281 WARN L610 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-20 22:46:39,377 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 22:46:39,377 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 22:46:39,460 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 22:46:39,567 INFO L203 MainTranslator]: Completed pre-run [2021-11-20 22:46:39,597 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_68e31973-de7e-40ae-b5f9-bd56024de57b/sv-benchmarks/c/aws-c-common/aws_byte_cursor_advance_harness.i[4497,4510] [2021-11-20 22:46:39,598 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_68e31973-de7e-40ae-b5f9-bd56024de57b/sv-benchmarks/c/aws-c-common/aws_byte_cursor_advance_harness.i[4557,4570] [2021-11-20 22:46:39,666 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 22:46:39,666 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 22:46:39,667 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 22:46:39,670 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 22:46:39,673 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 22:46:39,686 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 22:46:39,697 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 22:46:39,698 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 22:46:39,699 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 22:46:39,760 WARN L610 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-20 22:46:39,761 WARN L610 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-20 22:46:39,762 WARN L610 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-20 22:46:39,763 WARN L610 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-20 22:46:39,763 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-20 22:46:39,764 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-20 22:46:39,765 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-20 22:46:39,765 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-20 22:46:39,765 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-20 22:46:39,766 WARN L610 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-20 22:46:39,803 WARN L610 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-20 22:46:39,924 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 22:46:39,925 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 22:46:39,964 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 22:46:40,263 INFO L208 MainTranslator]: Completed translation [2021-11-20 22:46:40,263 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:46:40 WrapperNode [2021-11-20 22:46:40,264 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-20 22:46:40,265 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-20 22:46:40,265 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-20 22:46:40,265 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-20 22:46:40,272 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:46:40" (1/1) ... [2021-11-20 22:46:40,404 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:46:40" (1/1) ... [2021-11-20 22:46:40,522 INFO L137 Inliner]: procedures = 710, calls = 2642, calls flagged for inlining = 60, calls inlined = 7, statements flattened = 883 [2021-11-20 22:46:40,522 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-20 22:46:40,523 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-20 22:46:40,523 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-20 22:46:40,523 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-20 22:46:40,532 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:46:40" (1/1) ... [2021-11-20 22:46:40,532 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:46:40" (1/1) ... [2021-11-20 22:46:40,546 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:46:40" (1/1) ... [2021-11-20 22:46:40,547 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:46:40" (1/1) ... [2021-11-20 22:46:40,612 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:46:40" (1/1) ... [2021-11-20 22:46:40,626 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:46:40" (1/1) ... [2021-11-20 22:46:40,634 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:46:40" (1/1) ... [2021-11-20 22:46:40,654 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-20 22:46:40,661 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-20 22:46:40,661 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-20 22:46:40,661 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-20 22:46:40,662 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:46:40" (1/1) ... [2021-11-20 22:46:40,669 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 22:46:40,679 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68e31973-de7e-40ae-b5f9-bd56024de57b/bin/utaipan-TEXQjIfE4P/z3 [2021-11-20 22:46:40,690 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68e31973-de7e-40ae-b5f9-bd56024de57b/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-20 22:46:40,753 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68e31973-de7e-40ae-b5f9-bd56024de57b/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-20 22:46:40,777 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_cursor_is_valid [2021-11-20 22:46:40,778 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_cursor_is_valid [2021-11-20 22:46:40,778 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-20 22:46:40,778 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2021-11-20 22:46:40,779 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2021-11-20 22:46:40,779 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-20 22:46:40,779 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-20 22:46:40,780 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-20 22:46:40,781 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-20 22:46:40,781 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-20 22:46:40,781 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-20 22:46:40,782 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-20 22:46:40,782 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-20 22:46:40,782 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-20 22:46:40,782 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-20 22:46:40,782 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2021-11-20 22:46:40,782 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2021-11-20 22:46:40,782 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-20 22:46:40,783 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2021-11-20 22:46:40,783 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2021-11-20 22:46:40,783 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-20 22:46:40,783 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-11-20 22:46:40,783 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-11-20 22:46:40,783 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-20 22:46:40,784 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-20 22:46:40,784 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-20 22:46:40,784 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-20 22:46:40,785 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-20 22:46:41,088 INFO L236 CfgBuilder]: Building ICFG [2021-11-20 22:46:41,090 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-20 22:46:42,992 INFO L277 CfgBuilder]: Performing block encoding [2021-11-20 22:46:42,999 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-20 22:46:43,000 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-20 22:46:43,002 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:46:43 BoogieIcfgContainer [2021-11-20 22:46:43,002 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-20 22:46:43,004 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-20 22:46:43,004 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-20 22:46:43,007 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-20 22:46:43,008 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 10:46:36" (1/3) ... [2021-11-20 22:46:43,009 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@589c789f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 10:46:43, skipping insertion in model container [2021-11-20 22:46:43,009 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:46:40" (2/3) ... [2021-11-20 22:46:43,009 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@589c789f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 10:46:43, skipping insertion in model container [2021-11-20 22:46:43,009 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:46:43" (3/3) ... [2021-11-20 22:46:43,011 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_byte_cursor_advance_harness.i [2021-11-20 22:46:43,017 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-20 22:46:43,017 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-20 22:46:43,068 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-20 22:46:43,075 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 [2021-11-20 22:46:43,075 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-20 22:46:43,094 INFO L276 IsEmpty]: Start isEmpty. Operand has 90 states, 60 states have (on average 1.2666666666666666) internal successors, (76), 61 states have internal predecessors, (76), 22 states have call successors, (22), 6 states have call predecessors, (22), 6 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2021-11-20 22:46:43,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-11-20 22:46:43,104 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 22:46:43,105 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 22:46:43,105 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 22:46:43,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 22:46:43,118 INFO L85 PathProgramCache]: Analyzing trace with hash 1865164224, now seen corresponding path program 1 times [2021-11-20 22:46:43,138 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-20 22:46:43,139 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [799779321] [2021-11-20 22:46:43,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 22:46:43,140 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-20 22:46:43,140 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68e31973-de7e-40ae-b5f9-bd56024de57b/bin/utaipan-TEXQjIfE4P/mathsat [2021-11-20 22:46:43,143 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68e31973-de7e-40ae-b5f9-bd56024de57b/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-20 22:46:43,145 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68e31973-de7e-40ae-b5f9-bd56024de57b/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-20 22:46:44,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 22:46:44,097 INFO L263 TraceCheckSpWp]: Trace formula consists of 1253 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-20 22:46:44,105 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 22:46:44,278 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-11-20 22:46:44,278 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 22:46:44,429 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2021-11-20 22:46:44,430 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-20 22:46:44,433 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [799779321] [2021-11-20 22:46:44,439 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [799779321] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-20 22:46:44,439 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-20 22:46:44,439 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-20 22:46:44,441 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1730139333] [2021-11-20 22:46:44,441 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-20 22:46:44,446 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-20 22:46:44,446 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-20 22:46:44,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-20 22:46:44,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-20 22:46:44,495 INFO L87 Difference]: Start difference. First operand has 90 states, 60 states have (on average 1.2666666666666666) internal successors, (76), 61 states have internal predecessors, (76), 22 states have call successors, (22), 6 states have call predecessors, (22), 6 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) Second operand has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-11-20 22:46:44,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 22:46:44,552 INFO L93 Difference]: Finished difference Result 170 states and 243 transitions. [2021-11-20 22:46:44,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-20 22:46:44,554 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 47 [2021-11-20 22:46:44,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 22:46:44,566 INFO L225 Difference]: With dead ends: 170 [2021-11-20 22:46:44,566 INFO L226 Difference]: Without dead ends: 80 [2021-11-20 22:46:44,571 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-20 22:46:44,574 INFO L933 BasicCegarLoop]: 118 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 118 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-20 22:46:44,575 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 118 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-20 22:46:44,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2021-11-20 22:46:44,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80. [2021-11-20 22:46:44,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 52 states have (on average 1.2307692307692308) internal successors, (64), 54 states have internal predecessors, (64), 22 states have call successors, (22), 6 states have call predecessors, (22), 5 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2021-11-20 22:46:44,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 105 transitions. [2021-11-20 22:46:44,619 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 105 transitions. Word has length 47 [2021-11-20 22:46:44,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 22:46:44,620 INFO L470 AbstractCegarLoop]: Abstraction has 80 states and 105 transitions. [2021-11-20 22:46:44,621 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-11-20 22:46:44,621 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 105 transitions. [2021-11-20 22:46:44,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-11-20 22:46:44,624 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 22:46:44,624 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 22:46:44,651 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68e31973-de7e-40ae-b5f9-bd56024de57b/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-20 22:46:44,845 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68e31973-de7e-40ae-b5f9-bd56024de57b/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 [2021-11-20 22:46:44,846 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 22:46:44,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 22:46:44,846 INFO L85 PathProgramCache]: Analyzing trace with hash 866728124, now seen corresponding path program 1 times [2021-11-20 22:46:44,848 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-20 22:46:44,848 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [662402715] [2021-11-20 22:46:44,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 22:46:44,849 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-20 22:46:44,849 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68e31973-de7e-40ae-b5f9-bd56024de57b/bin/utaipan-TEXQjIfE4P/mathsat [2021-11-20 22:46:44,852 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68e31973-de7e-40ae-b5f9-bd56024de57b/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-20 22:46:44,918 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68e31973-de7e-40ae-b5f9-bd56024de57b/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-20 22:46:45,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 22:46:45,591 INFO L263 TraceCheckSpWp]: Trace formula consists of 1253 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-20 22:46:45,596 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 22:46:45,836 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-20 22:46:45,836 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 22:46:46,120 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-11-20 22:46:46,120 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-20 22:46:46,120 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [662402715] [2021-11-20 22:46:46,121 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [662402715] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-20 22:46:46,121 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-20 22:46:46,121 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 5 [2021-11-20 22:46:46,121 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1799207365] [2021-11-20 22:46:46,123 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 22:46:46,126 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-20 22:46:46,126 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-20 22:46:46,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-20 22:46:46,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-20 22:46:46,127 INFO L87 Difference]: Start difference. First operand 80 states and 105 transitions. Second operand has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 2 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2021-11-20 22:46:46,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 22:46:46,291 INFO L93 Difference]: Finished difference Result 146 states and 197 transitions. [2021-11-20 22:46:46,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-20 22:46:46,292 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 2 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 47 [2021-11-20 22:46:46,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 22:46:46,295 INFO L225 Difference]: With dead ends: 146 [2021-11-20 22:46:46,295 INFO L226 Difference]: Without dead ends: 83 [2021-11-20 22:46:46,296 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-20 22:46:46,297 INFO L933 BasicCegarLoop]: 94 mSDtfsCounter, 42 mSDsluCounter, 140 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 234 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-20 22:46:46,298 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [63 Valid, 234 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-20 22:46:46,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2021-11-20 22:46:46,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 83. [2021-11-20 22:46:46,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 54 states have (on average 1.2222222222222223) internal successors, (66), 57 states have internal predecessors, (66), 22 states have call successors, (22), 6 states have call predecessors, (22), 6 states have return successors, (23), 19 states have call predecessors, (23), 19 states have call successors, (23) [2021-11-20 22:46:46,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 111 transitions. [2021-11-20 22:46:46,322 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 111 transitions. Word has length 47 [2021-11-20 22:46:46,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 22:46:46,323 INFO L470 AbstractCegarLoop]: Abstraction has 83 states and 111 transitions. [2021-11-20 22:46:46,323 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 2 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2021-11-20 22:46:46,323 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 111 transitions. [2021-11-20 22:46:46,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-11-20 22:46:46,326 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 22:46:46,327 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 22:46:46,356 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68e31973-de7e-40ae-b5f9-bd56024de57b/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-20 22:46:46,541 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68e31973-de7e-40ae-b5f9-bd56024de57b/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 [2021-11-20 22:46:46,542 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 22:46:46,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 22:46:46,542 INFO L85 PathProgramCache]: Analyzing trace with hash -912055711, now seen corresponding path program 1 times [2021-11-20 22:46:46,543 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-20 22:46:46,543 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [625590129] [2021-11-20 22:46:46,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 22:46:46,544 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-20 22:46:46,544 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68e31973-de7e-40ae-b5f9-bd56024de57b/bin/utaipan-TEXQjIfE4P/mathsat [2021-11-20 22:46:46,545 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68e31973-de7e-40ae-b5f9-bd56024de57b/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-20 22:46:46,577 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68e31973-de7e-40ae-b5f9-bd56024de57b/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-20 22:46:47,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 22:46:47,309 INFO L263 TraceCheckSpWp]: Trace formula consists of 1257 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-20 22:46:47,313 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 22:46:47,531 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-20 22:46:47,532 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 22:46:47,793 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-11-20 22:46:47,793 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-20 22:46:47,793 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [625590129] [2021-11-20 22:46:47,794 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [625590129] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-20 22:46:47,794 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-20 22:46:47,794 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 6 [2021-11-20 22:46:47,794 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1625598806] [2021-11-20 22:46:47,794 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 22:46:47,795 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-20 22:46:47,795 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-20 22:46:47,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-20 22:46:47,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-11-20 22:46:47,796 INFO L87 Difference]: Start difference. First operand 83 states and 111 transitions. Second operand has 6 states, 5 states have (on average 7.2) internal successors, (36), 6 states have internal predecessors, (36), 3 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (6), 2 states have call predecessors, (6), 3 states have call successors, (6) [2021-11-20 22:46:48,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 22:46:48,347 INFO L93 Difference]: Finished difference Result 141 states and 189 transitions. [2021-11-20 22:46:48,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-20 22:46:48,349 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 7.2) internal successors, (36), 6 states have internal predecessors, (36), 3 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (6), 2 states have call predecessors, (6), 3 states have call successors, (6) Word has length 49 [2021-11-20 22:46:48,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 22:46:48,351 INFO L225 Difference]: With dead ends: 141 [2021-11-20 22:46:48,351 INFO L226 Difference]: Without dead ends: 83 [2021-11-20 22:46:48,352 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-11-20 22:46:48,353 INFO L933 BasicCegarLoop]: 93 mSDtfsCounter, 59 mSDsluCounter, 208 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 301 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-11-20 22:46:48,354 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [61 Valid, 301 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-11-20 22:46:48,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2021-11-20 22:46:48,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 83. [2021-11-20 22:46:48,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 54 states have (on average 1.2222222222222223) internal successors, (66), 57 states have internal predecessors, (66), 22 states have call successors, (22), 6 states have call predecessors, (22), 6 states have return successors, (21), 19 states have call predecessors, (21), 19 states have call successors, (21) [2021-11-20 22:46:48,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 109 transitions. [2021-11-20 22:46:48,377 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 109 transitions. Word has length 49 [2021-11-20 22:46:48,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 22:46:48,378 INFO L470 AbstractCegarLoop]: Abstraction has 83 states and 109 transitions. [2021-11-20 22:46:48,379 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 7.2) internal successors, (36), 6 states have internal predecessors, (36), 3 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (6), 2 states have call predecessors, (6), 3 states have call successors, (6) [2021-11-20 22:46:48,380 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 109 transitions. [2021-11-20 22:46:48,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-11-20 22:46:48,388 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 22:46:48,391 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 22:46:48,410 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68e31973-de7e-40ae-b5f9-bd56024de57b/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-20 22:46:48,593 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68e31973-de7e-40ae-b5f9-bd56024de57b/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 [2021-11-20 22:46:48,593 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 22:46:48,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 22:46:48,594 INFO L85 PathProgramCache]: Analyzing trace with hash -633300053, now seen corresponding path program 1 times [2021-11-20 22:46:48,596 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-20 22:46:48,596 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1098166335] [2021-11-20 22:46:48,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 22:46:48,596 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-20 22:46:48,596 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68e31973-de7e-40ae-b5f9-bd56024de57b/bin/utaipan-TEXQjIfE4P/mathsat [2021-11-20 22:46:48,597 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68e31973-de7e-40ae-b5f9-bd56024de57b/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-20 22:46:48,600 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68e31973-de7e-40ae-b5f9-bd56024de57b/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-20 22:46:49,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 22:46:49,338 INFO L263 TraceCheckSpWp]: Trace formula consists of 1265 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-20 22:46:49,342 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 22:46:49,511 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2021-11-20 22:46:49,511 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 22:46:49,726 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2021-11-20 22:46:49,726 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-20 22:46:49,726 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1098166335] [2021-11-20 22:46:49,727 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1098166335] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-20 22:46:49,727 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-20 22:46:49,727 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [] total 12 [2021-11-20 22:46:49,727 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [777401011] [2021-11-20 22:46:49,727 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-20 22:46:49,728 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-20 22:46:49,728 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-20 22:46:49,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-20 22:46:49,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2021-11-20 22:46:49,729 INFO L87 Difference]: Start difference. First operand 83 states and 109 transitions. Second operand has 12 states, 10 states have (on average 3.3) internal successors, (33), 8 states have internal predecessors, (33), 3 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 1 states have call successors, (7) [2021-11-20 22:46:49,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 22:46:49,885 INFO L93 Difference]: Finished difference Result 95 states and 125 transitions. [2021-11-20 22:46:49,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-20 22:46:49,886 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 3.3) internal successors, (33), 8 states have internal predecessors, (33), 3 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 1 states have call successors, (7) Word has length 53 [2021-11-20 22:46:49,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 22:46:49,888 INFO L225 Difference]: With dead ends: 95 [2021-11-20 22:46:49,888 INFO L226 Difference]: Without dead ends: 93 [2021-11-20 22:46:49,889 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2021-11-20 22:46:49,890 INFO L933 BasicCegarLoop]: 105 mSDtfsCounter, 17 mSDsluCounter, 898 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 1003 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-20 22:46:49,890 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [18 Valid, 1003 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-20 22:46:49,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2021-11-20 22:46:49,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 92. [2021-11-20 22:46:49,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 60 states have (on average 1.2) internal successors, (72), 64 states have internal predecessors, (72), 23 states have call successors, (23), 7 states have call predecessors, (23), 8 states have return successors, (27), 20 states have call predecessors, (27), 20 states have call successors, (27) [2021-11-20 22:46:49,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 122 transitions. [2021-11-20 22:46:49,903 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 122 transitions. Word has length 53 [2021-11-20 22:46:49,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 22:46:49,903 INFO L470 AbstractCegarLoop]: Abstraction has 92 states and 122 transitions. [2021-11-20 22:46:49,903 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 3.3) internal successors, (33), 8 states have internal predecessors, (33), 3 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 1 states have call successors, (7) [2021-11-20 22:46:49,904 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 122 transitions. [2021-11-20 22:46:49,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-11-20 22:46:49,905 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 22:46:49,905 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 22:46:49,932 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68e31973-de7e-40ae-b5f9-bd56024de57b/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-20 22:46:50,132 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68e31973-de7e-40ae-b5f9-bd56024de57b/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 [2021-11-20 22:46:50,132 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 22:46:50,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 22:46:50,133 INFO L85 PathProgramCache]: Analyzing trace with hash 1847539699, now seen corresponding path program 1 times [2021-11-20 22:46:50,135 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-20 22:46:50,135 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1144612337] [2021-11-20 22:46:50,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 22:46:50,135 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-20 22:46:50,135 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68e31973-de7e-40ae-b5f9-bd56024de57b/bin/utaipan-TEXQjIfE4P/mathsat [2021-11-20 22:46:50,136 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68e31973-de7e-40ae-b5f9-bd56024de57b/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-20 22:46:50,175 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68e31973-de7e-40ae-b5f9-bd56024de57b/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-20 22:46:51,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 22:46:51,633 INFO L263 TraceCheckSpWp]: Trace formula consists of 1274 conjuncts, 30 conjunts are in the unsatisfiable core [2021-11-20 22:46:51,638 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 22:46:51,692 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 [2021-11-20 22:46:52,776 INFO L354 Elim1Store]: treesize reduction 54, result has 31.6 percent of original size [2021-11-20 22:46:52,777 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 35 treesize of output 49 [2021-11-20 22:46:53,378 INFO L354 Elim1Store]: treesize reduction 57, result has 30.5 percent of original size [2021-11-20 22:46:53,378 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 56 treesize of output 73 [2021-11-20 22:46:58,186 INFO L354 Elim1Store]: treesize reduction 36, result has 26.5 percent of original size [2021-11-20 22:46:58,186 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 84 treesize of output 88 [2021-11-20 22:46:58,329 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 22:46:58,333 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:46:58,464 INFO L354 Elim1Store]: treesize reduction 312, result has 9.6 percent of original size [2021-11-20 22:46:58,465 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 5 case distinctions, treesize of input 43 treesize of output 52 [2021-11-20 22:47:00,674 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 5 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 22:47:00,675 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 22:47:03,270 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_DerPreprocessor_2 (_ BitVec 32)) (|ULTIMATE.start_aws_byte_cursor_advance_~#rv~6#1.offset| (_ BitVec 64))) (= (_ bv0 64) (let ((.cse0 (select (store |c_#memory_int| |c_ULTIMATE.start_aws_byte_cursor_advance_~#rv~6#1.base| (store (store (store (select |c_#memory_int| |c_ULTIMATE.start_aws_byte_cursor_advance_~#rv~6#1.base|) (bvadd |ULTIMATE.start_aws_byte_cursor_advance_~#rv~6#1.offset| (_ bv8 64)) v_DerPreprocessor_2) |ULTIMATE.start_aws_byte_cursor_advance_~#rv~6#1.offset| ((_ extract 31 0) (_ bv0 64))) (bvadd |ULTIMATE.start_aws_byte_cursor_advance_~#rv~6#1.offset| (_ bv4 64)) ((_ extract 63 32) (_ bv0 64)))) |c_ULTIMATE.start_aws_byte_cursor_advance_~cursor#1.base|))) (concat (select .cse0 (bvadd |c_ULTIMATE.start_aws_byte_cursor_advance_~cursor#1.offset| (_ bv4 64))) (select .cse0 |c_ULTIMATE.start_aws_byte_cursor_advance_~cursor#1.offset|))))) is different from false [2021-11-20 22:47:15,719 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_DerPreprocessor_2 (_ BitVec 32)) (|v_ULTIMATE.start_aws_byte_cursor_advance_harness_~#rv~14#1.base_16| (_ BitVec 64)) (|v_ULTIMATE.start_aws_byte_cursor_advance_~#rv~6#1.base_15| (_ BitVec 64)) (|ULTIMATE.start_aws_byte_cursor_advance_~#rv~6#1.offset| (_ BitVec 64))) (or (not (= (_ bv0 1) (bvneg (select (store |c_#valid| |v_ULTIMATE.start_aws_byte_cursor_advance_harness_~#rv~14#1.base_16| (_ bv1 1)) |v_ULTIMATE.start_aws_byte_cursor_advance_~#rv~6#1.base_15|)))) (= (_ bv0 64) (let ((.cse0 (select (store |c_#memory_int| |v_ULTIMATE.start_aws_byte_cursor_advance_~#rv~6#1.base_15| (store (store (store (select |c_#memory_int| |v_ULTIMATE.start_aws_byte_cursor_advance_~#rv~6#1.base_15|) (bvadd |ULTIMATE.start_aws_byte_cursor_advance_~#rv~6#1.offset| (_ bv8 64)) v_DerPreprocessor_2) |ULTIMATE.start_aws_byte_cursor_advance_~#rv~6#1.offset| ((_ extract 31 0) (_ bv0 64))) (bvadd |ULTIMATE.start_aws_byte_cursor_advance_~#rv~6#1.offset| (_ bv4 64)) ((_ extract 63 32) (_ bv0 64)))) |c_ULTIMATE.start_aws_byte_cursor_advance_harness_~#cursor~2#1.base|))) (concat (select .cse0 (bvadd (_ bv4 64) |c_ULTIMATE.start_aws_byte_cursor_advance_harness_~#cursor~2#1.offset|)) (select .cse0 |c_ULTIMATE.start_aws_byte_cursor_advance_harness_~#cursor~2#1.offset|)))))) is different from false [2021-11-20 22:47:18,094 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_DerPreprocessor_2 (_ BitVec 32)) (|v_ULTIMATE.start_aws_byte_cursor_advance_harness_~#old_byte_from_cursor~0#1.base_11| (_ BitVec 64)) (|v_ULTIMATE.start_aws_byte_cursor_advance_harness_~#old~0#1.base_15| (_ BitVec 64)) (|v_ULTIMATE.start_aws_byte_cursor_advance_harness_~#rv~14#1.base_16| (_ BitVec 64)) (|v_ULTIMATE.start_aws_byte_cursor_advance_~#rv~6#1.base_15| (_ BitVec 64)) (|ULTIMATE.start_aws_byte_cursor_advance_~#rv~6#1.offset| (_ BitVec 64))) (let ((.cse1 (store |c_#valid| |v_ULTIMATE.start_aws_byte_cursor_advance_harness_~#old~0#1.base_15| (_ bv1 1)))) (or (not (= (_ bv0 1) (bvneg (select |c_#valid| |v_ULTIMATE.start_aws_byte_cursor_advance_harness_~#old~0#1.base_15|)))) (= (_ bv0 64) (let ((.cse0 (select (store |c_#memory_int| |v_ULTIMATE.start_aws_byte_cursor_advance_~#rv~6#1.base_15| (store (store (store (select |c_#memory_int| |v_ULTIMATE.start_aws_byte_cursor_advance_~#rv~6#1.base_15|) (bvadd |ULTIMATE.start_aws_byte_cursor_advance_~#rv~6#1.offset| (_ bv8 64)) v_DerPreprocessor_2) |ULTIMATE.start_aws_byte_cursor_advance_~#rv~6#1.offset| ((_ extract 31 0) (_ bv0 64))) (bvadd |ULTIMATE.start_aws_byte_cursor_advance_~#rv~6#1.offset| (_ bv4 64)) ((_ extract 63 32) (_ bv0 64)))) |c_ULTIMATE.start_aws_byte_cursor_advance_harness_~#cursor~2#1.base|))) (concat (select .cse0 (bvadd (_ bv4 64) |c_ULTIMATE.start_aws_byte_cursor_advance_harness_~#cursor~2#1.offset|)) (select .cse0 |c_ULTIMATE.start_aws_byte_cursor_advance_harness_~#cursor~2#1.offset|)))) (not (= (_ bv0 1) (bvneg (bvneg (select (store (store .cse1 |v_ULTIMATE.start_aws_byte_cursor_advance_harness_~#old_byte_from_cursor~0#1.base_11| (_ bv1 1)) |v_ULTIMATE.start_aws_byte_cursor_advance_harness_~#rv~14#1.base_16| (_ bv1 1)) |v_ULTIMATE.start_aws_byte_cursor_advance_~#rv~6#1.base_15|))))) (not (= (_ bv0 1) (select .cse1 |v_ULTIMATE.start_aws_byte_cursor_advance_harness_~#old_byte_from_cursor~0#1.base_11|)))))) is different from false [2021-11-20 22:47:18,584 INFO L354 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2021-11-20 22:47:18,585 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 64727 treesize of output 62157 [2021-11-20 22:47:19,208 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-20 22:47:19,209 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1144612337] [2021-11-20 22:47:19,210 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: BigInteger out of long range [2021-11-20 22:47:19,210 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1059150049] [2021-11-20 22:47:19,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 22:47:19,210 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-20 22:47:19,211 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68e31973-de7e-40ae-b5f9-bd56024de57b/bin/utaipan-TEXQjIfE4P/cvc4 [2021-11-20 22:47:19,215 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68e31973-de7e-40ae-b5f9-bd56024de57b/bin/utaipan-TEXQjIfE4P/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-20 22:47:19,233 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68e31973-de7e-40ae-b5f9-bd56024de57b/bin/utaipan-TEXQjIfE4P/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2021-11-20 22:48:23,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 22:48:23,419 INFO L263 TraceCheckSpWp]: Trace formula consists of 1274 conjuncts, 27 conjunts are in the unsatisfiable core [2021-11-20 22:48:23,423 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 22:48:23,540 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 [2021-11-20 22:48:25,919 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:48:25,921 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:48:25,923 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-20 22:48:25,924 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 47 treesize of output 38 [2021-11-20 22:48:25,927 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 22:48:25,929 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:48:25,929 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 22:48:25,971 INFO L354 Elim1Store]: treesize reduction 36, result has 32.1 percent of original size [2021-11-20 22:48:25,971 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 3 case distinctions, treesize of input 32 treesize of output 38 [2021-11-20 22:48:29,426 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 10 proven. 10 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-20 22:48:29,426 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 22:48:31,734 WARN L838 $PredicateComparison]: unable to prove that (forall ((|ULTIMATE.start_aws_byte_cursor_advance_~#rv~6#1.base| (_ BitVec 64)) (v_DerPreprocessor_3 (_ BitVec 32))) (= (_ bv0 64) (let ((.cse0 (select (store |c_#memory_int| |ULTIMATE.start_aws_byte_cursor_advance_~#rv~6#1.base| (store (store (store (select |c_#memory_int| |ULTIMATE.start_aws_byte_cursor_advance_~#rv~6#1.base|) (bvadd |c_ULTIMATE.start_aws_byte_cursor_advance_~#rv~6#1.offset| (_ bv8 64)) v_DerPreprocessor_3) |c_ULTIMATE.start_aws_byte_cursor_advance_~#rv~6#1.offset| ((_ extract 31 0) (_ bv0 64))) (bvadd |c_ULTIMATE.start_aws_byte_cursor_advance_~#rv~6#1.offset| (_ bv4 64)) ((_ extract 63 32) (_ bv0 64)))) |c_ULTIMATE.start_aws_byte_cursor_advance_~cursor#1.base|))) (concat (select .cse0 (bvadd |c_ULTIMATE.start_aws_byte_cursor_advance_~cursor#1.offset| (_ bv4 64))) (select .cse0 |c_ULTIMATE.start_aws_byte_cursor_advance_~cursor#1.offset|))))) is different from false [2021-11-20 22:48:33,762 WARN L838 $PredicateComparison]: unable to prove that (forall ((|ULTIMATE.start_aws_byte_cursor_advance_~#rv~6#1.base| (_ BitVec 64)) (v_DerPreprocessor_3 (_ BitVec 32))) (= (_ bv0 64) (let ((.cse0 (select (store |c_#memory_int| |ULTIMATE.start_aws_byte_cursor_advance_~#rv~6#1.base| (store (store (store (select |c_#memory_int| |ULTIMATE.start_aws_byte_cursor_advance_~#rv~6#1.base|) (_ bv8 64) v_DerPreprocessor_3) (_ bv0 64) ((_ extract 31 0) (_ bv0 64))) (_ bv4 64) ((_ extract 63 32) (_ bv0 64)))) |c_ULTIMATE.start_aws_byte_cursor_advance_~cursor#1.base|))) (concat (select .cse0 (bvadd |c_ULTIMATE.start_aws_byte_cursor_advance_~cursor#1.offset| (_ bv4 64))) (select .cse0 |c_ULTIMATE.start_aws_byte_cursor_advance_~cursor#1.offset|))))) is different from false [2021-11-20 22:48:35,830 WARN L838 $PredicateComparison]: unable to prove that (forall ((|ULTIMATE.start_aws_byte_cursor_advance_~#rv~6#1.base| (_ BitVec 64)) (v_DerPreprocessor_3 (_ BitVec 32))) (= (_ bv0 64) (let ((.cse0 (select (store |c_#memory_int| |ULTIMATE.start_aws_byte_cursor_advance_~#rv~6#1.base| (store (store (store (select |c_#memory_int| |ULTIMATE.start_aws_byte_cursor_advance_~#rv~6#1.base|) (_ bv8 64) v_DerPreprocessor_3) (_ bv0 64) ((_ extract 31 0) (_ bv0 64))) (_ bv4 64) ((_ extract 63 32) (_ bv0 64)))) |c_ULTIMATE.start_aws_byte_cursor_advance_harness_~#cursor~2#1.base|))) (concat (select .cse0 (bvadd (_ bv4 64) |c_ULTIMATE.start_aws_byte_cursor_advance_harness_~#cursor~2#1.offset|)) (select .cse0 |c_ULTIMATE.start_aws_byte_cursor_advance_harness_~#cursor~2#1.offset|))))) is different from false [2021-11-20 22:48:37,875 WARN L838 $PredicateComparison]: unable to prove that (or (forall ((|ULTIMATE.start_aws_byte_cursor_advance_~#rv~6#1.base| (_ BitVec 64)) (v_DerPreprocessor_3 (_ BitVec 32))) (= (_ bv0 64) (let ((.cse0 (select (store |c_#memory_int| |ULTIMATE.start_aws_byte_cursor_advance_~#rv~6#1.base| (store (store (store (select |c_#memory_int| |ULTIMATE.start_aws_byte_cursor_advance_~#rv~6#1.base|) (_ bv8 64) v_DerPreprocessor_3) (_ bv0 64) ((_ extract 31 0) (_ bv0 64))) (_ bv4 64) ((_ extract 63 32) (_ bv0 64)))) |c_ULTIMATE.start_aws_byte_cursor_advance_harness_~#cursor~2#1.base|))) (concat (select .cse0 (bvadd (_ bv4 64) |c_ULTIMATE.start_aws_byte_cursor_advance_harness_~#cursor~2#1.offset|)) (select .cse0 |c_ULTIMATE.start_aws_byte_cursor_advance_harness_~#cursor~2#1.offset|))))) (forall ((|v_ULTIMATE.start_aws_byte_cursor_advance_harness_~#old~0#1.offset_16| (_ BitVec 64)) (|v_ULTIMATE.start_aws_byte_cursor_advance_harness_~#old~0#1.base_16| (_ BitVec 64))) (let ((.cse2 (let ((.cse3 (select |c_#memory_int| |c_ULTIMATE.start_aws_byte_cursor_advance_harness_~#cursor~2#1.base|))) (concat (select .cse3 (bvadd (_ bv4 64) |c_ULTIMATE.start_aws_byte_cursor_advance_harness_~#cursor~2#1.offset|)) (select .cse3 |c_ULTIMATE.start_aws_byte_cursor_advance_harness_~#cursor~2#1.offset|)))) (.cse1 (select |c_#memory_int| |v_ULTIMATE.start_aws_byte_cursor_advance_harness_~#old~0#1.base_16|))) (or (not (= (select .cse1 |v_ULTIMATE.start_aws_byte_cursor_advance_harness_~#old~0#1.offset_16|) ((_ extract 31 0) .cse2))) (not (= ((_ extract 63 32) .cse2) (select .cse1 (bvadd (_ bv4 64) |v_ULTIMATE.start_aws_byte_cursor_advance_harness_~#old~0#1.offset_16|)))))))) is different from false [2021-11-20 22:49:02,051 INFO L354 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2021-11-20 22:49:02,052 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 14260 treesize of output 13920 [2021-11-20 22:49:02,173 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: BigInteger out of long range [2021-11-20 22:49:02,173 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1391321411] [2021-11-20 22:49:02,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 22:49:02,173 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 22:49:02,174 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68e31973-de7e-40ae-b5f9-bd56024de57b/bin/utaipan-TEXQjIfE4P/z3 [2021-11-20 22:49:02,181 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68e31973-de7e-40ae-b5f9-bd56024de57b/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 22:49:02,183 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68e31973-de7e-40ae-b5f9-bd56024de57b/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-11-20 22:49:03,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 22:49:03,130 INFO L263 TraceCheckSpWp]: Trace formula consists of 1274 conjuncts, 26 conjunts are in the unsatisfiable core [2021-11-20 22:49:03,133 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 22:49:03,175 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 [2021-11-20 22:49:08,411 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:49:08,413 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:49:08,415 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-20 22:49:08,415 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 47 treesize of output 38 [2021-11-20 22:49:08,420 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 22:49:08,421 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:49:08,422 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 22:49:08,449 INFO L354 Elim1Store]: treesize reduction 36, result has 32.1 percent of original size [2021-11-20 22:49:08,449 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 3 case distinctions, treesize of input 32 treesize of output 38 [2021-11-20 22:49:09,009 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 10 proven. 10 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-20 22:49:09,009 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 22:49:11,354 WARN L838 $PredicateComparison]: unable to prove that (forall ((|ULTIMATE.start_aws_byte_cursor_advance_~#rv~6#1.base| (_ BitVec 64)) (v_DerPreprocessor_5 (_ BitVec 32))) (= (_ bv0 64) (let ((.cse0 (select (store |c_#memory_int| |ULTIMATE.start_aws_byte_cursor_advance_~#rv~6#1.base| (store (store (store (select |c_#memory_int| |ULTIMATE.start_aws_byte_cursor_advance_~#rv~6#1.base|) (bvadd |c_ULTIMATE.start_aws_byte_cursor_advance_~#rv~6#1.offset| (_ bv8 64)) v_DerPreprocessor_5) |c_ULTIMATE.start_aws_byte_cursor_advance_~#rv~6#1.offset| ((_ extract 31 0) (_ bv0 64))) (bvadd |c_ULTIMATE.start_aws_byte_cursor_advance_~#rv~6#1.offset| (_ bv4 64)) ((_ extract 63 32) (_ bv0 64)))) |c_ULTIMATE.start_aws_byte_cursor_advance_~cursor#1.base|))) (concat (select .cse0 (bvadd |c_ULTIMATE.start_aws_byte_cursor_advance_~cursor#1.offset| (_ bv4 64))) (select .cse0 |c_ULTIMATE.start_aws_byte_cursor_advance_~cursor#1.offset|))))) is different from false [2021-11-20 22:49:13,385 WARN L838 $PredicateComparison]: unable to prove that (forall ((|ULTIMATE.start_aws_byte_cursor_advance_~#rv~6#1.base| (_ BitVec 64)) (v_DerPreprocessor_5 (_ BitVec 32))) (= (_ bv0 64) (let ((.cse0 (select (store |c_#memory_int| |ULTIMATE.start_aws_byte_cursor_advance_~#rv~6#1.base| (store (store (store (select |c_#memory_int| |ULTIMATE.start_aws_byte_cursor_advance_~#rv~6#1.base|) (_ bv8 64) v_DerPreprocessor_5) (_ bv0 64) ((_ extract 31 0) (_ bv0 64))) (_ bv4 64) ((_ extract 63 32) (_ bv0 64)))) |c_ULTIMATE.start_aws_byte_cursor_advance_~cursor#1.base|))) (concat (select .cse0 (bvadd |c_ULTIMATE.start_aws_byte_cursor_advance_~cursor#1.offset| (_ bv4 64))) (select .cse0 |c_ULTIMATE.start_aws_byte_cursor_advance_~cursor#1.offset|))))) is different from false [2021-11-20 22:49:15,434 WARN L838 $PredicateComparison]: unable to prove that (forall ((|ULTIMATE.start_aws_byte_cursor_advance_~#rv~6#1.base| (_ BitVec 64)) (v_DerPreprocessor_5 (_ BitVec 32))) (= (_ bv0 64) (let ((.cse0 (select (store |c_#memory_int| |ULTIMATE.start_aws_byte_cursor_advance_~#rv~6#1.base| (store (store (store (select |c_#memory_int| |ULTIMATE.start_aws_byte_cursor_advance_~#rv~6#1.base|) (_ bv8 64) v_DerPreprocessor_5) (_ bv0 64) ((_ extract 31 0) (_ bv0 64))) (_ bv4 64) ((_ extract 63 32) (_ bv0 64)))) |c_ULTIMATE.start_aws_byte_cursor_advance_harness_~#cursor~2#1.base|))) (concat (select .cse0 (bvadd (_ bv4 64) |c_ULTIMATE.start_aws_byte_cursor_advance_harness_~#cursor~2#1.offset|)) (select .cse0 |c_ULTIMATE.start_aws_byte_cursor_advance_harness_~#cursor~2#1.offset|))))) is different from false [2021-11-20 22:49:18,054 WARN L838 $PredicateComparison]: unable to prove that (or (and (= (let ((.cse0 (select |c_#memory_int| |c_aws_byte_cursor_is_valid_#in~cursor.base|))) (concat (select .cse0 (bvadd (_ bv4 64) |c_aws_byte_cursor_is_valid_#in~cursor.offset|)) (select .cse0 |c_aws_byte_cursor_is_valid_#in~cursor.offset|))) (_ bv0 64)) (exists ((|ULTIMATE.start_aws_byte_cursor_advance_~#rv~6#1.base| (_ BitVec 64)) (v_DerPreprocessor_3 (_ BitVec 32))) (not (= (_ bv0 64) (let ((.cse1 (select (store |c_#memory_int| |ULTIMATE.start_aws_byte_cursor_advance_~#rv~6#1.base| (store (store (store (select |c_#memory_int| |ULTIMATE.start_aws_byte_cursor_advance_~#rv~6#1.base|) (_ bv8 64) v_DerPreprocessor_3) (_ bv0 64) (_ bv0 32)) (_ bv4 64) (_ bv0 32))) |c_aws_byte_cursor_is_valid_#in~cursor.base|))) (concat (select .cse1 (bvadd (_ bv4 64) |c_aws_byte_cursor_is_valid_#in~cursor.offset|)) (select .cse1 |c_aws_byte_cursor_is_valid_#in~cursor.offset|))))))) (forall ((|ULTIMATE.start_aws_byte_cursor_advance_~#rv~6#1.base| (_ BitVec 64)) (v_DerPreprocessor_5 (_ BitVec 32))) (= (_ bv0 64) (let ((.cse2 (select (store |c_#memory_int| |ULTIMATE.start_aws_byte_cursor_advance_~#rv~6#1.base| (store (store (store (select |c_#memory_int| |ULTIMATE.start_aws_byte_cursor_advance_~#rv~6#1.base|) (_ bv8 64) v_DerPreprocessor_5) (_ bv0 64) ((_ extract 31 0) (_ bv0 64))) (_ bv4 64) ((_ extract 63 32) (_ bv0 64)))) |c_aws_byte_cursor_is_valid_#in~cursor.base|))) (concat (select .cse2 (bvadd (_ bv4 64) |c_aws_byte_cursor_is_valid_#in~cursor.offset|)) (select .cse2 |c_aws_byte_cursor_is_valid_#in~cursor.offset|)))))) is different from false [2021-11-20 22:49:24,689 INFO L354 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2021-11-20 22:49:24,689 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 114852 treesize of output 112272 [2021-11-20 22:49:25,214 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: BigInteger out of long range [2021-11-20 22:49:25,214 INFO L186 FreeRefinementEngine]: Found 0 perfect and 0 imperfect interpolant sequences. [2021-11-20 22:49:25,215 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [] total 0 [2021-11-20 22:49:25,215 ERROR L172 FreeRefinementEngine]: Strategy WALRUS failed to provide any proof altough trace is infeasible [2021-11-20 22:49:25,215 INFO L628 BasicCegarLoop]: Counterexample might be feasible [2021-11-20 22:49:25,222 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-20 22:49:25,267 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68e31973-de7e-40ae-b5f9-bd56024de57b/bin/utaipan-TEXQjIfE4P/cvc4 --incremental --print-success --lang smt (7)] Forceful destruction successful, exit code 0 [2021-11-20 22:49:25,463 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68e31973-de7e-40ae-b5f9-bd56024de57b/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-20 22:49:25,680 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68e31973-de7e-40ae-b5f9-bd56024de57b/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-11-20 22:49:25,844 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68e31973-de7e-40ae-b5f9-bd56024de57b/bin/utaipan-TEXQjIfE4P/cvc4 --incremental --print-success --lang smt,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68e31973-de7e-40ae-b5f9-bd56024de57b/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68e31973-de7e-40ae-b5f9-bd56024de57b/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 22:49:25,847 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2021-11-20 22:49:25,850 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-20 22:49:25,884 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 10:49:25 BoogieIcfgContainer [2021-11-20 22:49:25,885 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-20 22:49:25,885 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-20 22:49:25,885 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-20 22:49:25,886 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-20 22:49:25,886 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:46:43" (3/4) ... [2021-11-20 22:49:25,889 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-20 22:49:25,889 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-20 22:49:25,889 INFO L158 Benchmark]: Toolchain (without parser) took 168938.13ms. Allocated memory was 62.9MB in the beginning and 216.0MB in the end (delta: 153.1MB). Free memory was 31.4MB in the beginning and 167.8MB in the end (delta: -136.4MB). Peak memory consumption was 16.6MB. Max. memory is 16.1GB. [2021-11-20 22:49:25,890 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 62.9MB. Free memory was 42.8MB in the beginning and 42.7MB in the end (delta: 42.7kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-20 22:49:25,890 INFO L158 Benchmark]: CACSL2BoogieTranslator took 3308.63ms. Allocated memory was 62.9MB in the beginning and 113.2MB in the end (delta: 50.3MB). Free memory was 31.2MB in the beginning and 61.1MB in the end (delta: -29.8MB). Peak memory consumption was 41.6MB. Max. memory is 16.1GB. [2021-11-20 22:49:25,891 INFO L158 Benchmark]: Boogie Procedure Inliner took 257.83ms. Allocated memory is still 113.2MB. Free memory was 61.1MB in the beginning and 49.3MB in the end (delta: 11.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-11-20 22:49:25,891 INFO L158 Benchmark]: Boogie Preprocessor took 136.83ms. Allocated memory is still 113.2MB. Free memory was 49.3MB in the beginning and 41.6MB in the end (delta: 7.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-20 22:49:25,891 INFO L158 Benchmark]: RCFGBuilder took 2341.65ms. Allocated memory was 113.2MB in the beginning and 176.2MB in the end (delta: 62.9MB). Free memory was 41.6MB in the beginning and 106.7MB in the end (delta: -65.1MB). Peak memory consumption was 26.8MB. Max. memory is 16.1GB. [2021-11-20 22:49:25,892 INFO L158 Benchmark]: TraceAbstraction took 162880.63ms. Allocated memory was 176.2MB in the beginning and 216.0MB in the end (delta: 39.8MB). Free memory was 106.7MB in the beginning and 167.8MB in the end (delta: -61.1MB). Peak memory consumption was 106.6MB. Max. memory is 16.1GB. [2021-11-20 22:49:25,892 INFO L158 Benchmark]: Witness Printer took 3.59ms. Allocated memory is still 216.0MB. Free memory is still 167.8MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-20 22:49:25,894 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 62.9MB. Free memory was 42.8MB in the beginning and 42.7MB in the end (delta: 42.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 3308.63ms. Allocated memory was 62.9MB in the beginning and 113.2MB in the end (delta: 50.3MB). Free memory was 31.2MB in the beginning and 61.1MB in the end (delta: -29.8MB). Peak memory consumption was 41.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 257.83ms. Allocated memory is still 113.2MB. Free memory was 61.1MB in the beginning and 49.3MB in the end (delta: 11.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Preprocessor took 136.83ms. Allocated memory is still 113.2MB. Free memory was 49.3MB in the beginning and 41.6MB in the end (delta: 7.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 2341.65ms. Allocated memory was 113.2MB in the beginning and 176.2MB in the end (delta: 62.9MB). Free memory was 41.6MB in the beginning and 106.7MB in the end (delta: -65.1MB). Peak memory consumption was 26.8MB. Max. memory is 16.1GB. * TraceAbstraction took 162880.63ms. Allocated memory was 176.2MB in the beginning and 216.0MB in the end (delta: 39.8MB). Free memory was 106.7MB in the beginning and 167.8MB in the end (delta: -61.1MB). Peak memory consumption was 106.6MB. Max. memory is 16.1GB. * Witness Printer took 3.59ms. Allocated memory is still 216.0MB. Free memory is still 167.8MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: unable to decide satisfiability of path constraint, overapproximation of large string literal at line 8772. Possible FailurePath: [L6866-L6871] static struct aws_allocator s_can_fail_allocator_static = { .mem_acquire = s_can_fail_malloc_allocator, .mem_release = s_can_fail_free_allocator, .mem_realloc = s_can_fail_realloc_allocator, .mem_calloc = s_can_fail_calloc_allocator, }; [L7311] static __thread int tl_last_error = 0; [L7648-L7660] static const uint8_t s_tolower_table[256] = { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o', 'p', 'q', 'r', 's', 't', 'u', 'v', 'w', 'x', 'y', 'z', 91, 92, 93, 94, 95, 96, 'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o', 'p', 'q', 'r', 's', 't', 'u', 'v', 'w', 'x', 'y', 'z', 123, 124, 125, 126, 127, 128, 129, 130, 131, 132, 133, 134, 135, 136, 137, 138, 139, 140, 141, 142, 143, 144, 145, 146, 147, 148, 149, 150, 151, 152, 153, 154, 155, 156, 157, 158, 159, 160, 161, 162, 163, 164, 165, 166, 167, 168, 169, 170, 171, 172, 173, 174, 175, 176, 177, 178, 179, 180, 181, 182, 183, 184, 185, 186, 187, 188, 189, 190, 191, 192, 193, 194, 195, 196, 197, 198, 199, 200, 201, 202, 203, 204, 205, 206, 207, 208, 209, 210, 211, 212, 213, 214, 215, 216, 217, 218, 219, 220, 221, 222, 223, 224, 225, 226, 227, 228, 229, 230, 231, 232, 233, 234, 235, 236, 237, 238, 239, 240, 241, 242, 243, 244, 245, 246, 247, 248, 249, 250, 251, 252, 253, 254, 255}; [L8771-L8919] static struct aws_error_info errors[] = { [(AWS_ERROR_SUCCESS)-0x0000] = { .literal_name = "AWS_ERROR_SUCCESS", .error_code = (AWS_ERROR_SUCCESS), .error_str = ("Success."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_SUCCESS" ", " "Success.", } , [(AWS_ERROR_OOM)-0x0000] = { .literal_name = "AWS_ERROR_OOM", .error_code = (AWS_ERROR_OOM), .error_str = ("Out of memory."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_OOM" ", " "Out of memory.", } , [(AWS_ERROR_UNKNOWN)-0x0000] = { .literal_name = "AWS_ERROR_UNKNOWN", .error_code = (AWS_ERROR_UNKNOWN), .error_str = ("Unknown error."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_UNKNOWN" ", " "Unknown error.", } , [(AWS_ERROR_SHORT_BUFFER)-0x0000] = { .literal_name = "AWS_ERROR_SHORT_BUFFER", .error_code = (AWS_ERROR_SHORT_BUFFER), .error_str = ("Buffer is not large enough to hold result."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_SHORT_BUFFER" ", " "Buffer is not large enough to hold result.", } , [(AWS_ERROR_OVERFLOW_DETECTED)-0x0000] = { .literal_name = "AWS_ERROR_OVERFLOW_DETECTED", .error_code = (AWS_ERROR_OVERFLOW_DETECTED), .error_str = ("Fixed size value overflow was detected."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_OVERFLOW_DETECTED" ", " "Fixed size value overflow was detected.", } , [(AWS_ERROR_UNSUPPORTED_OPERATION)-0x0000] = { .literal_name = "AWS_ERROR_UNSUPPORTED_OPERATION", .error_code = (AWS_ERROR_UNSUPPORTED_OPERATION), .error_str = ("Unsupported operation."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_UNSUPPORTED_OPERATION" ", " "Unsupported operation.", } , [(AWS_ERROR_INVALID_BUFFER_SIZE)-0x0000] = { .literal_name = "AWS_ERROR_INVALID_BUFFER_SIZE", .error_code = (AWS_ERROR_INVALID_BUFFER_SIZE), .error_str = ("Invalid buffer size."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_INVALID_BUFFER_SIZE" ", " "Invalid buffer size.", } , [(AWS_ERROR_INVALID_HEX_STR)-0x0000] = { .literal_name = "AWS_ERROR_INVALID_HEX_STR", .error_code = (AWS_ERROR_INVALID_HEX_STR), .error_str = ("Invalid hex string."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_INVALID_HEX_STR" ", " "Invalid hex string.", } , [(AWS_ERROR_INVALID_BASE64_STR)-0x0000] = { .literal_name = "AWS_ERROR_INVALID_BASE64_STR", .error_code = (AWS_ERROR_INVALID_BASE64_STR), .error_str = ("Invalid base64 string."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_INVALID_BASE64_STR" ", " "Invalid base64 string.", } , [(AWS_ERROR_INVALID_INDEX)-0x0000] = { .literal_name = "AWS_ERROR_INVALID_INDEX", .error_code = (AWS_ERROR_INVALID_INDEX), .error_str = ("Invalid index for list access."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_INVALID_INDEX" ", " "Invalid index for list access.", } , [(AWS_ERROR_THREAD_INVALID_SETTINGS)-0x0000] = { .literal_name = "AWS_ERROR_THREAD_INVALID_SETTINGS", .error_code = (AWS_ERROR_THREAD_INVALID_SETTINGS), .error_str = ("Invalid thread settings."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_THREAD_INVALID_SETTINGS" ", " "Invalid thread settings.", } , [(AWS_ERROR_THREAD_INSUFFICIENT_RESOURCE)-0x0000] = { .literal_name = "AWS_ERROR_THREAD_INSUFFICIENT_RESOURCE", .error_code = (AWS_ERROR_THREAD_INSUFFICIENT_RESOURCE), .error_str = ("Insufficent resources for thread."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_THREAD_INSUFFICIENT_RESOURCE" ", " "Insufficent resources for thread.", } , [(AWS_ERROR_THREAD_NO_PERMISSIONS)-0x0000] = { .literal_name = "AWS_ERROR_THREAD_NO_PERMISSIONS", .error_code = (AWS_ERROR_THREAD_NO_PERMISSIONS), .error_str = ("Insufficient permissions for thread operation."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_THREAD_NO_PERMISSIONS" ", " "Insufficient permissions for thread operation.", } , [(AWS_ERROR_THREAD_NOT_JOINABLE)-0x0000] = { .literal_name = "AWS_ERROR_THREAD_NOT_JOINABLE", .error_code = (AWS_ERROR_THREAD_NOT_JOINABLE), .error_str = ("Thread not joinable."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_THREAD_NOT_JOINABLE" ", " "Thread not joinable.", } , [(AWS_ERROR_THREAD_NO_SUCH_THREAD_ID)-0x0000] = { .literal_name = "AWS_ERROR_THREAD_NO_SUCH_THREAD_ID", .error_code = (AWS_ERROR_THREAD_NO_SUCH_THREAD_ID), .error_str = ("No such thread ID."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_THREAD_NO_SUCH_THREAD_ID" ", " "No such thread ID.", } , [(AWS_ERROR_THREAD_DEADLOCK_DETECTED)-0x0000] = { .literal_name = "AWS_ERROR_THREAD_DEADLOCK_DETECTED", .error_code = (AWS_ERROR_THREAD_DEADLOCK_DETECTED), .error_str = ("Deadlock detected in thread."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_THREAD_DEADLOCK_DETECTED" ", " "Deadlock detected in thread.", } , [(AWS_ERROR_MUTEX_NOT_INIT)-0x0000] = { .literal_name = "AWS_ERROR_MUTEX_NOT_INIT", .error_code = (AWS_ERROR_MUTEX_NOT_INIT), .error_str = ("Mutex not initialized."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_MUTEX_NOT_INIT" ", " "Mutex not initialized.", } , [(AWS_ERROR_MUTEX_TIMEOUT)-0x0000] = { .literal_name = "AWS_ERROR_MUTEX_TIMEOUT", .error_code = (AWS_ERROR_MUTEX_TIMEOUT), .error_str = ("Mutex operation timed out."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_MUTEX_TIMEOUT" ", " "Mutex operation timed out.", } , [(AWS_ERROR_MUTEX_CALLER_NOT_OWNER)-0x0000] = { .literal_name = "AWS_ERROR_MUTEX_CALLER_NOT_OWNER", .error_code = (AWS_ERROR_MUTEX_CALLER_NOT_OWNER), .error_str = ("The caller of a mutex operation was not the owner."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_MUTEX_CALLER_NOT_OWNER" ", " "The caller of a mutex operation was not the owner.", } , [(AWS_ERROR_MUTEX_FAILED)-0x0000] = { .literal_name = "AWS_ERROR_MUTEX_FAILED", .error_code = (AWS_ERROR_MUTEX_FAILED), .error_str = ("Mutex operation failed."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_MUTEX_FAILED" ", " "Mutex operation failed.", } , [(AWS_ERROR_COND_VARIABLE_INIT_FAILED)-0x0000] = { .literal_name = "AWS_ERROR_COND_VARIABLE_INIT_FAILED", .error_code = (AWS_ERROR_COND_VARIABLE_INIT_FAILED), .error_str = ("Condition variable initialization failed."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_COND_VARIABLE_INIT_FAILED" ", " "Condition variable initialization failed.", } , [(AWS_ERROR_COND_VARIABLE_TIMED_OUT)-0x0000] = { .literal_name = "AWS_ERROR_COND_VARIABLE_TIMED_OUT", .error_code = (AWS_ERROR_COND_VARIABLE_TIMED_OUT), .error_str = ("Condition variable wait timed out."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_COND_VARIABLE_TIMED_OUT" ", " "Condition variable wait timed out.", } , [(AWS_ERROR_COND_VARIABLE_ERROR_UNKNOWN)-0x0000] = { .literal_name = "AWS_ERROR_COND_VARIABLE_ERROR_UNKNOWN", .error_code = (AWS_ERROR_COND_VARIABLE_ERROR_UNKNOWN), .error_str = ("Condition variable unknown error."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_COND_VARIABLE_ERROR_UNKNOWN" ", " "Condition variable unknown error.", } , [(AWS_ERROR_CLOCK_FAILURE)-0x0000] = { .literal_name = "AWS_ERROR_CLOCK_FAILURE", .error_code = (AWS_ERROR_CLOCK_FAILURE), .error_str = ("Clock operation failed."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_CLOCK_FAILURE" ", " "Clock operation failed.", } , [(AWS_ERROR_LIST_EMPTY)-0x0000] = { .literal_name = "AWS_ERROR_LIST_EMPTY", .error_code = (AWS_ERROR_LIST_EMPTY), .error_str = ("Empty list."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_LIST_EMPTY" ", " "Empty list.", } , [(AWS_ERROR_DEST_COPY_TOO_SMALL)-0x0000] = { .literal_name = "AWS_ERROR_DEST_COPY_TOO_SMALL", .error_code = (AWS_ERROR_DEST_COPY_TOO_SMALL), .error_str = ("Destination of copy is too small."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_DEST_COPY_TOO_SMALL" ", " "Destination of copy is too small.", } , [(AWS_ERROR_LIST_EXCEEDS_MAX_SIZE)-0x0000] = { .literal_name = "AWS_ERROR_LIST_EXCEEDS_MAX_SIZE", .error_code = (AWS_ERROR_LIST_EXCEEDS_MAX_SIZE), .error_str = ("A requested operation on a list would exceed it's max size."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_LIST_EXCEEDS_MAX_SIZE" ", " "A requested operation on a list would exceed it's max size.", } , [(AWS_ERROR_LIST_STATIC_MODE_CANT_SHRINK)-0x0000] = { .literal_name = "AWS_ERROR_LIST_STATIC_MODE_CANT_SHRINK", .error_code = (AWS_ERROR_LIST_STATIC_MODE_CANT_SHRINK), .error_str = ("Attempt to shrink a list in static mode."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_LIST_STATIC_MODE_CANT_SHRINK" ", " "Attempt to shrink a list in static mode.", } , [(AWS_ERROR_PRIORITY_QUEUE_FULL)-0x0000] = { .literal_name = "AWS_ERROR_PRIORITY_QUEUE_FULL", .error_code = (AWS_ERROR_PRIORITY_QUEUE_FULL), .error_str = ("Attempt to add items to a full preallocated queue in static mode."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_PRIORITY_QUEUE_FULL" ", " "Attempt to add items to a full preallocated queue in static mode.", } , [(AWS_ERROR_PRIORITY_QUEUE_EMPTY)-0x0000] = { .literal_name = "AWS_ERROR_PRIORITY_QUEUE_EMPTY", .error_code = (AWS_ERROR_PRIORITY_QUEUE_EMPTY), .error_str = ("Attempt to pop an item from an empty queue."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_PRIORITY_QUEUE_EMPTY" ", " "Attempt to pop an item from an empty queue.", } , [(AWS_ERROR_PRIORITY_QUEUE_BAD_NODE)-0x0000] = { .literal_name = "AWS_ERROR_PRIORITY_QUEUE_BAD_NODE", .error_code = (AWS_ERROR_PRIORITY_QUEUE_BAD_NODE), .error_str = ("Bad node handle passed to remove."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_PRIORITY_QUEUE_BAD_NODE" ", " "Bad node handle passed to remove.", } , [(AWS_ERROR_HASHTBL_ITEM_NOT_FOUND)-0x0000] = { .literal_name = "AWS_ERROR_HASHTBL_ITEM_NOT_FOUND", .error_code = (AWS_ERROR_HASHTBL_ITEM_NOT_FOUND), .error_str = ("Item not found in hash table."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_HASHTBL_ITEM_NOT_FOUND" ", " "Item not found in hash table.", } , [(AWS_ERROR_INVALID_DATE_STR)-0x0000] = { .literal_name = "AWS_ERROR_INVALID_DATE_STR", .error_code = (AWS_ERROR_INVALID_DATE_STR), .error_str = ("Date string is invalid and cannot be parsed."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_INVALID_DATE_STR" ", " "Date string is invalid and cannot be parsed.", } , [(AWS_ERROR_INVALID_ARGUMENT)-0x0000] = { .literal_name = "AWS_ERROR_INVALID_ARGUMENT", .error_code = (AWS_ERROR_INVALID_ARGUMENT), .error_str = ("An invalid argument was passed to a function."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_INVALID_ARGUMENT" ", " "An invalid argument was passed to a function.", } , [(AWS_ERROR_RANDOM_GEN_FAILED)-0x0000] = { .literal_name = "AWS_ERROR_RANDOM_GEN_FAILED", .error_code = (AWS_ERROR_RANDOM_GEN_FAILED), .error_str = ("A call to the random number generator failed. Retry later."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_RANDOM_GEN_FAILED" ", " "A call to the random number generator failed. Retry later.", } , [(AWS_ERROR_MALFORMED_INPUT_STRING)-0x0000] = { .literal_name = "AWS_ERROR_MALFORMED_INPUT_STRING", .error_code = (AWS_ERROR_MALFORMED_INPUT_STRING), .error_str = ("An input string was passed to a parser and the string was incorrectly formatted."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_MALFORMED_INPUT_STRING" ", " "An input string was passed to a parser and the string was incorrectly formatted.", } , [(AWS_ERROR_UNIMPLEMENTED)-0x0000] = { .literal_name = "AWS_ERROR_UNIMPLEMENTED", .error_code = (AWS_ERROR_UNIMPLEMENTED), .error_str = ("A function was called, but is not implemented."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_UNIMPLEMENTED" ", " "A function was called, but is not implemented.", } , [(AWS_ERROR_INVALID_STATE)-0x0000] = { .literal_name = "AWS_ERROR_INVALID_STATE", .error_code = (AWS_ERROR_INVALID_STATE), .error_str = ("An invalid state was encountered."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_INVALID_STATE" ", " "An invalid state was encountered.", } , [(AWS_ERROR_ENVIRONMENT_GET)-0x0000] = { .literal_name = "AWS_ERROR_ENVIRONMENT_GET", .error_code = (AWS_ERROR_ENVIRONMENT_GET), .error_str = ("System call failure when getting an environment variable."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_ENVIRONMENT_GET" ", " "System call failure when getting an environment variable.", } , [(AWS_ERROR_ENVIRONMENT_SET)-0x0000] = { .literal_name = "AWS_ERROR_ENVIRONMENT_SET", .error_code = (AWS_ERROR_ENVIRONMENT_SET), .error_str = ("System call failure when setting an environment variable."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_ENVIRONMENT_SET" ", " "System call failure when setting an environment variable.", } , [(AWS_ERROR_ENVIRONMENT_UNSET)-0x0000] = { .literal_name = "AWS_ERROR_ENVIRONMENT_UNSET", .error_code = (AWS_ERROR_ENVIRONMENT_UNSET), .error_str = ("System call failure when unsetting an environment variable."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_ENVIRONMENT_UNSET" ", " "System call failure when unsetting an environment variable.", } , [(AWS_ERROR_SYS_CALL_FAILURE)-0x0000] = { .literal_name = "AWS_ERROR_SYS_CALL_FAILURE", .error_code = (AWS_ERROR_SYS_CALL_FAILURE), .error_str = ("System call failure"), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_SYS_CALL_FAILURE" ", " "System call failure", } , [(AWS_ERROR_FILE_INVALID_PATH)-0x0000] = { .literal_name = "AWS_ERROR_FILE_INVALID_PATH", .error_code = (AWS_ERROR_FILE_INVALID_PATH), .error_str = ("Invalid file path."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_FILE_INVALID_PATH" ", " "Invalid file path.", } , [(AWS_ERROR_MAX_FDS_EXCEEDED)-0x0000] = { .literal_name = "AWS_ERROR_MAX_FDS_EXCEEDED", .error_code = (AWS_ERROR_MAX_FDS_EXCEEDED), .error_str = ("The maximum number of fds has been exceeded."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_MAX_FDS_EXCEEDED" ", " "The maximum number of fds has been exceeded.", } , [(AWS_ERROR_NO_PERMISSION)-0x0000] = { .literal_name = "AWS_ERROR_NO_PERMISSION", .error_code = (AWS_ERROR_NO_PERMISSION), .error_str = ("User does not have permission to perform the requested action."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_NO_PERMISSION" ", " "User does not have permission to perform the requested action.", } , [(AWS_ERROR_STREAM_UNSEEKABLE)-0x0000] = { .literal_name = "AWS_ERROR_STREAM_UNSEEKABLE", .error_code = (AWS_ERROR_STREAM_UNSEEKABLE), .error_str = ("Stream does not support seek operations"), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_STREAM_UNSEEKABLE" ", " "Stream does not support seek operations", } , }; [L8922-L8925] static struct aws_error_info_list s_list = { .error_list = errors, .count = (sizeof(errors) / sizeof((errors)[0])), }; [L8927-L8936] static struct aws_log_subject_info s_common_log_subject_infos[] = { { .subject_id = (AWS_LS_COMMON_GENERAL), .subject_name = ("aws-c-common"), .subject_description = ("Subject for aws-c-common logging that doesn't belong to any particular category") } , { .subject_id = (AWS_LS_COMMON_TASK_SCHEDULER), .subject_name = ("task-scheduler"), .subject_description = ("Subject for task scheduler or task specific logging.") } , }; [L8938-L8941] static struct aws_log_subject_info_list s_common_log_subject_list = { .subject_list = s_common_log_subject_infos, .count = (sizeof(s_common_log_subject_infos) / sizeof((s_common_log_subject_infos)[0])), }; [L8943-L8947] static _Bool s_common_library_initialized = 0 ; [L8999] CALL aws_byte_cursor_advance_harness() [L8961] struct aws_byte_cursor cursor = {__VERIFIER_nondet_ulong(), 0}; [L8962] size_t len = __VERIFIER_nondet_ulong(); [L8965] CALL ensure_byte_cursor_has_allocated_buffer_member(&cursor) [L6673] CALL, EXPR nondet_bool() [L261] return __VERIFIER_nondet_bool(); [L6673] RET, EXPR nondet_bool() [L6673-L6675] EXPR (nondet_bool()) ? ((void *)0) : bounded_malloc(cursor->len) [L6673-L6675] cursor->ptr = (nondet_bool()) ? ((void *)0) : bounded_malloc(cursor->len) [L8965] RET ensure_byte_cursor_has_allocated_buffer_member(&cursor) [L8966] CALL, EXPR aws_byte_cursor_is_valid(&cursor) [L7386-L7387] EXPR cursor && ((cursor->len == 0) || (cursor->len > 0 && cursor->ptr && ((((cursor->len)) == 0) || ((cursor->ptr))))) [L7387] EXPR cursor->len [L7387] EXPR (cursor->len == 0) || (cursor->len > 0 && cursor->ptr && ((((cursor->len)) == 0) || ((cursor->ptr)))) [L7386-L7387] EXPR cursor && ((cursor->len == 0) || (cursor->len > 0 && cursor->ptr && ((((cursor->len)) == 0) || ((cursor->ptr))))) [L7386-L7387] return cursor && ((cursor->len == 0) || (cursor->len > 0 && cursor->ptr && ((((cursor->len)) == 0) || ((cursor->ptr))))); [L8966] RET, EXPR aws_byte_cursor_is_valid(&cursor) [L8966] CALL assume_abort_if_not(aws_byte_cursor_is_valid(&cursor)) [L211] COND FALSE !(!cond) [L8966] RET assume_abort_if_not(aws_byte_cursor_is_valid(&cursor)) [L8969] EXPR cursor.ptr [L8969] uint8_t *debug_ptr = cursor.ptr; [L8970] EXPR cursor.len [L8970] size_t debug_len = cursor.len; [L8971] struct aws_byte_cursor old = cursor; [L8972] struct store_byte_from_buffer old_byte_from_cursor; [L8973] EXPR cursor.ptr [L8973] EXPR cursor.len [L8973] CALL save_byte_from_array(cursor.ptr, cursor.len, &old_byte_from_cursor) [L7135] COND FALSE !(size > 0 && array && storage) [L8973] RET save_byte_from_array(cursor.ptr, cursor.len, &old_byte_from_cursor) [L8976] struct aws_byte_cursor rv = aws_byte_cursor_advance(&cursor, len); [L8976] CALL aws_byte_cursor_advance(&cursor, len) [L8293] CALL, EXPR aws_byte_cursor_is_valid(cursor) [L7386-L7387] EXPR cursor && ((cursor->len == 0) || (cursor->len > 0 && cursor->ptr && ((((cursor->len)) == 0) || ((cursor->ptr))))) [L7387] EXPR cursor->len [L7387] EXPR (cursor->len == 0) || (cursor->len > 0 && cursor->ptr && ((((cursor->len)) == 0) || ((cursor->ptr)))) [L7386-L7387] EXPR cursor && ((cursor->len == 0) || (cursor->len > 0 && cursor->ptr && ((((cursor->len)) == 0) || ((cursor->ptr))))) [L7386-L7387] return cursor && ((cursor->len == 0) || (cursor->len > 0 && cursor->ptr && ((((cursor->len)) == 0) || ((cursor->ptr))))); [L8293] RET, EXPR aws_byte_cursor_is_valid(cursor) [L8293] CALL assume_abort_if_not((aws_byte_cursor_is_valid(cursor))) [L211] COND FALSE !(!cond) [L8293] RET assume_abort_if_not((aws_byte_cursor_is_valid(cursor))) [L8294] struct aws_byte_cursor rv; [L8295] EXPR cursor->len [L8295-L8299] cursor->len > ( (18446744073709551615UL) >> 1) || len > ( (18446744073709551615UL) >> 1) || len > cursor->len [L8299] EXPR cursor->len [L8295-L8299] cursor->len > ( (18446744073709551615UL) >> 1) || len > ( (18446744073709551615UL) >> 1) || len > cursor->len [L8295-L8299] COND TRUE cursor->len > ( (18446744073709551615UL) >> 1) || len > ( (18446744073709551615UL) >> 1) || len > cursor->len [L8300-L8301] rv.ptr = ((void *)0) [L8303] rv.len = 0 [L8311] CALL, EXPR aws_byte_cursor_is_valid(cursor) [L7386-L7387] EXPR cursor && ((cursor->len == 0) || (cursor->len > 0 && cursor->ptr && ((((cursor->len)) == 0) || ((cursor->ptr))))) [L7387] EXPR cursor->len [L7387] EXPR (cursor->len == 0) || (cursor->len > 0 && cursor->ptr && ((((cursor->len)) == 0) || ((cursor->ptr)))) [L7387] EXPR cursor->len [L7387] EXPR cursor->len > 0 && cursor->ptr [L7387] EXPR cursor->ptr [L7387] EXPR cursor->len > 0 && cursor->ptr [L7387] EXPR cursor->len > 0 && cursor->ptr && ((((cursor->len)) == 0) || ((cursor->ptr))) [L7387] EXPR (cursor->len == 0) || (cursor->len > 0 && cursor->ptr && ((((cursor->len)) == 0) || ((cursor->ptr)))) [L7386-L7387] EXPR cursor && ((cursor->len == 0) || (cursor->len > 0 && cursor->ptr && ((((cursor->len)) == 0) || ((cursor->ptr))))) [L7386-L7387] return cursor && ((cursor->len == 0) || (cursor->len > 0 && cursor->ptr && ((((cursor->len)) == 0) || ((cursor->ptr))))); [L8311] RET, EXPR aws_byte_cursor_is_valid(cursor) [L8311] CALL __VERIFIER_assert((aws_byte_cursor_is_valid(cursor))) [L223] COND TRUE !cond [L223] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 90 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 162.8s, OverallIterations: 5, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 142 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 118 mSDsluCounter, 1656 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1246 mSDsCounter, 35 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 144 IncrementalHoareTripleChecker+Invalid, 179 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 35 mSolverCounterUnsat, 410 mSDtfsCounter, 144 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 387 GetRequests, 367 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=92occurred in iteration=4, InterpolantAutomatonStates: 22, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 3.8s SatisfiabilityAnalysisTime, 29.5s InterpolantComputationTime, 253 NumberOfCodeBlocks, 253 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 440 ConstructedInterpolants, 42 QuantifiedInterpolants, 2958 SizeOfPredicates, 30 NumberOfNonLiveVariables, 6302 ConjunctsInSsa, 50 ConjunctsInUnsatCore, 9 InterpolantComputations, 6 PerfectInterpolantSequences, 157/189 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-11-20 22:49:25,968 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68e31973-de7e-40ae-b5f9-bd56024de57b/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN