./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_hash_string_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_f1c7cd7a-e5c4-4572-820a-fc5d17d5a1fd/bin/utaipan-TEXQjIfE4P/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1c7cd7a-e5c4-4572-820a-fc5d17d5a1fd/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_f1c7cd7a-e5c4-4572-820a-fc5d17d5a1fd/bin/utaipan-TEXQjIfE4P/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1c7cd7a-e5c4-4572-820a-fc5d17d5a1fd/bin/utaipan-TEXQjIfE4P/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_hash_string_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1c7cd7a-e5c4-4572-820a-fc5d17d5a1fd/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_f1c7cd7a-e5c4-4572-820a-fc5d17d5a1fd/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 2359aa88e8e7d743df9393581b2f3fdb25ac15a45b4f8f680bad72fb64c83223 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-21 01:09:49,171 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-21 01:09:49,175 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-21 01:09:49,240 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-21 01:09:49,241 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-21 01:09:49,243 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-21 01:09:49,245 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-21 01:09:49,248 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-21 01:09:49,251 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-21 01:09:49,253 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-21 01:09:49,255 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-21 01:09:49,257 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-21 01:09:49,258 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-21 01:09:49,259 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-21 01:09:49,262 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-21 01:09:49,264 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-21 01:09:49,266 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-21 01:09:49,268 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-21 01:09:49,271 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-21 01:09:49,275 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-21 01:09:49,278 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-21 01:09:49,280 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-21 01:09:49,282 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-21 01:09:49,290 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-21 01:09:49,296 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-21 01:09:49,305 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-21 01:09:49,305 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-21 01:09:49,307 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-21 01:09:49,308 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-21 01:09:49,309 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-21 01:09:49,310 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-21 01:09:49,311 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-21 01:09:49,313 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-21 01:09:49,316 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-21 01:09:49,318 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-21 01:09:49,322 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-21 01:09:49,323 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-21 01:09:49,325 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-21 01:09:49,326 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-21 01:09:49,327 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-21 01:09:49,329 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-21 01:09:49,330 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1c7cd7a-e5c4-4572-820a-fc5d17d5a1fd/bin/utaipan-TEXQjIfE4P/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-21 01:09:49,388 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-21 01:09:49,389 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-21 01:09:49,390 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-21 01:09:49,390 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-21 01:09:49,391 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-21 01:09:49,392 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-21 01:09:49,392 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-21 01:09:49,393 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-21 01:09:49,393 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-21 01:09:49,393 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-21 01:09:49,395 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-21 01:09:49,395 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-21 01:09:49,395 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-21 01:09:49,396 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-21 01:09:49,396 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-21 01:09:49,397 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-21 01:09:49,397 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-21 01:09:49,397 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-21 01:09:49,399 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-21 01:09:49,399 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-21 01:09:49,400 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-21 01:09:49,400 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-21 01:09:49,400 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-21 01:09:49,400 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-21 01:09:49,401 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-21 01:09:49,401 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-21 01:09:49,404 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-21 01:09:49,404 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-21 01:09:49,404 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-21 01:09:49,405 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 01:09:49,405 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-21 01:09:49,406 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-21 01:09:49,406 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-21 01:09:49,406 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-21 01:09:49,407 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-21 01:09:49,407 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-21 01:09:49,407 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-21 01:09:49,408 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-21 01:09:49,408 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_f1c7cd7a-e5c4-4572-820a-fc5d17d5a1fd/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1c7cd7a-e5c4-4572-820a-fc5d17d5a1fd/bin/utaipan-TEXQjIfE4P Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2359aa88e8e7d743df9393581b2f3fdb25ac15a45b4f8f680bad72fb64c83223 [2021-11-21 01:09:49,857 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-21 01:09:49,884 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-21 01:09:49,887 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-21 01:09:49,889 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-21 01:09:49,890 INFO L275 PluginConnector]: CDTParser initialized [2021-11-21 01:09:49,892 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1c7cd7a-e5c4-4572-820a-fc5d17d5a1fd/bin/utaipan-TEXQjIfE4P/../../sv-benchmarks/c/aws-c-common/aws_hash_string_harness.i [2021-11-21 01:09:49,998 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1c7cd7a-e5c4-4572-820a-fc5d17d5a1fd/bin/utaipan-TEXQjIfE4P/data/a46614572/8610c68ccd3c47be8369de07ae6322c2/FLAGd6782b804 [2021-11-21 01:09:51,127 INFO L306 CDTParser]: Found 1 translation units. [2021-11-21 01:09:51,128 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1c7cd7a-e5c4-4572-820a-fc5d17d5a1fd/sv-benchmarks/c/aws-c-common/aws_hash_string_harness.i [2021-11-21 01:09:51,200 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1c7cd7a-e5c4-4572-820a-fc5d17d5a1fd/bin/utaipan-TEXQjIfE4P/data/a46614572/8610c68ccd3c47be8369de07ae6322c2/FLAGd6782b804 [2021-11-21 01:09:51,513 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1c7cd7a-e5c4-4572-820a-fc5d17d5a1fd/bin/utaipan-TEXQjIfE4P/data/a46614572/8610c68ccd3c47be8369de07ae6322c2 [2021-11-21 01:09:51,517 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-21 01:09:51,518 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-21 01:09:51,521 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-21 01:09:51,521 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-21 01:09:51,525 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-21 01:09:51,530 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 01:09:51" (1/1) ... [2021-11-21 01:09:51,531 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ae31af3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:09:51, skipping insertion in model container [2021-11-21 01:09:51,532 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 01:09:51" (1/1) ... [2021-11-21 01:09:51,541 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-21 01:09:51,737 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-21 01:09:52,206 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_f1c7cd7a-e5c4-4572-820a-fc5d17d5a1fd/sv-benchmarks/c/aws-c-common/aws_hash_string_harness.i[4489,4502] [2021-11-21 01:09:52,215 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_f1c7cd7a-e5c4-4572-820a-fc5d17d5a1fd/sv-benchmarks/c/aws-c-common/aws_hash_string_harness.i[4549,4562] [2021-11-21 01:09:53,581 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 01:09:53,582 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 01:09:53,583 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 01:09:53,585 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 01:09:53,587 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 01:09:53,607 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 01:09:53,608 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 01:09:53,611 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 01:09:53,612 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 01:09:53,615 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 01:09:53,617 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 01:09:53,618 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 01:09:53,619 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 01:09:54,298 WARN L610 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-21 01:09:54,300 WARN L610 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-21 01:09:54,302 WARN L610 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-21 01:09:54,304 WARN L610 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-21 01:09:54,306 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-21 01:09:54,307 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-21 01:09:54,309 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-21 01:09:54,310 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-21 01:09:54,311 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-21 01:09:54,312 WARN L610 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-21 01:09:54,591 WARN L610 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-21 01:09:55,105 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 01:09:55,107 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 01:09:55,145 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 01:09:55,147 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 01:09:55,155 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 01:09:55,156 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 01:09:55,175 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 01:09:55,188 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 01:09:55,189 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 01:09:55,189 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 01:09:55,190 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 01:09:55,190 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 01:09:55,191 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 01:09:55,252 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 01:09:55,304 INFO L203 MainTranslator]: Completed pre-run [2021-11-21 01:09:55,339 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_f1c7cd7a-e5c4-4572-820a-fc5d17d5a1fd/sv-benchmarks/c/aws-c-common/aws_hash_string_harness.i[4489,4502] [2021-11-21 01:09:55,339 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_f1c7cd7a-e5c4-4572-820a-fc5d17d5a1fd/sv-benchmarks/c/aws-c-common/aws_hash_string_harness.i[4549,4562] [2021-11-21 01:09:55,384 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 01:09:55,384 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 01:09:55,385 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 01:09:55,385 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 01:09:55,386 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 01:09:55,393 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 01:09:55,394 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 01:09:55,395 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 01:09:55,395 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 01:09:55,397 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 01:09:55,397 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 01:09:55,398 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 01:09:55,398 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 01:09:55,435 WARN L610 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-21 01:09:55,436 WARN L610 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-21 01:09:55,437 WARN L610 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-21 01:09:55,439 WARN L610 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-21 01:09:55,440 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-21 01:09:55,441 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-21 01:09:55,441 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-21 01:09:55,442 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-21 01:09:55,443 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-21 01:09:55,443 WARN L610 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-21 01:09:55,467 WARN L610 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-21 01:09:55,684 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 01:09:55,684 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 01:09:55,705 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 01:09:55,706 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 01:09:55,710 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 01:09:55,711 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 01:09:55,722 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 01:09:55,723 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 01:09:55,724 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 01:09:55,725 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 01:09:55,727 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 01:09:55,727 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 01:09:55,728 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 01:09:55,762 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 01:09:56,102 INFO L208 MainTranslator]: Completed translation [2021-11-21 01:09:56,103 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:09:56 WrapperNode [2021-11-21 01:09:56,103 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-21 01:09:56,105 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-21 01:09:56,105 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-21 01:09:56,105 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-21 01:09:56,116 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:09:56" (1/1) ... [2021-11-21 01:09:56,282 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:09:56" (1/1) ... [2021-11-21 01:09:56,361 INFO L137 Inliner]: procedures = 774, calls = 2483, calls flagged for inlining = 67, calls inlined = 5, statements flattened = 527 [2021-11-21 01:09:56,362 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-21 01:09:56,363 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-21 01:09:56,363 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-21 01:09:56,364 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-21 01:09:56,374 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:09:56" (1/1) ... [2021-11-21 01:09:56,375 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:09:56" (1/1) ... [2021-11-21 01:09:56,388 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:09:56" (1/1) ... [2021-11-21 01:09:56,389 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:09:56" (1/1) ... [2021-11-21 01:09:56,442 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:09:56" (1/1) ... [2021-11-21 01:09:56,451 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:09:56" (1/1) ... [2021-11-21 01:09:56,461 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:09:56" (1/1) ... [2021-11-21 01:09:56,475 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-21 01:09:56,476 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-21 01:09:56,476 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-21 01:09:56,477 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-21 01:09:56,478 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:09:56" (1/1) ... [2021-11-21 01:09:56,488 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 01:09:56,503 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1c7cd7a-e5c4-4572-820a-fc5d17d5a1fd/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 01:09:56,519 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1c7cd7a-e5c4-4572-820a-fc5d17d5a1fd/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-21 01:09:56,569 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1c7cd7a-e5c4-4572-820a-fc5d17d5a1fd/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-21 01:09:56,613 INFO L130 BoogieDeclarations]: Found specification of procedure aws_string_is_valid [2021-11-21 01:09:56,614 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_string_is_valid [2021-11-21 01:09:56,614 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_string_is_allocated_bounded_length [2021-11-21 01:09:56,614 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_string_is_allocated_bounded_length [2021-11-21 01:09:56,615 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2021-11-21 01:09:56,615 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2021-11-21 01:09:56,615 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-21 01:09:56,616 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-21 01:09:56,616 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-21 01:09:56,616 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-21 01:09:56,616 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-21 01:09:56,616 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-21 01:09:56,617 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-21 01:09:56,617 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-21 01:09:56,617 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2021-11-21 01:09:56,617 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2021-11-21 01:09:56,618 INFO L130 BoogieDeclarations]: Found specification of procedure aws_string_bytes [2021-11-21 01:09:56,619 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_string_bytes [2021-11-21 01:09:56,619 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-21 01:09:56,620 INFO L130 BoogieDeclarations]: Found specification of procedure hashlittle2 [2021-11-21 01:09:56,620 INFO L138 BoogieDeclarations]: Found implementation of procedure hashlittle2 [2021-11-21 01:09:56,620 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2021-11-21 01:09:56,620 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2021-11-21 01:09:56,621 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-21 01:09:56,621 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-21 01:09:56,621 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-11-21 01:09:56,621 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-11-21 01:09:56,621 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-21 01:09:56,622 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2021-11-21 01:09:56,622 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2021-11-21 01:09:56,622 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-21 01:09:57,057 INFO L236 CfgBuilder]: Building ICFG [2021-11-21 01:09:57,059 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-21 01:09:58,406 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##5: assume !true; [2021-11-21 01:09:58,418 INFO L277 CfgBuilder]: Performing block encoding [2021-11-21 01:09:58,685 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-21 01:09:58,688 INFO L301 CfgBuilder]: Removed 5 assume(true) statements. [2021-11-21 01:09:58,692 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 01:09:58 BoogieIcfgContainer [2021-11-21 01:09:58,693 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-21 01:09:58,695 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-21 01:09:58,695 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-21 01:09:58,700 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-21 01:09:58,701 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 01:09:51" (1/3) ... [2021-11-21 01:09:58,702 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c2137ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 01:09:58, skipping insertion in model container [2021-11-21 01:09:58,703 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:09:56" (2/3) ... [2021-11-21 01:09:58,712 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c2137ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 01:09:58, skipping insertion in model container [2021-11-21 01:09:58,712 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 01:09:58" (3/3) ... [2021-11-21 01:09:58,720 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_hash_string_harness.i [2021-11-21 01:09:58,730 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-21 01:09:58,730 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-21 01:09:58,792 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-21 01:09:58,800 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-21 01:09:58,801 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-21 01:09:58,825 INFO L276 IsEmpty]: Start isEmpty. Operand has 88 states, 62 states have (on average 1.5) internal successors, (93), 62 states have internal predecessors, (93), 15 states have call successors, (15), 10 states have call predecessors, (15), 10 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2021-11-21 01:09:58,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-11-21 01:09:58,835 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:09:58,836 INFO L514 BasicCegarLoop]: trace histogram [4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:09:58,836 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:09:58,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:09:58,843 INFO L85 PathProgramCache]: Analyzing trace with hash -1922620881, now seen corresponding path program 1 times [2021-11-21 01:09:58,855 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:09:58,856 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [493881763] [2021-11-21 01:09:58,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:09:58,857 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:09:59,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:10:00,406 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-11-21 01:10:00,407 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:10:00,408 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [493881763] [2021-11-21 01:10:00,409 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [493881763] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-21 01:10:00,409 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1458144527] [2021-11-21 01:10:00,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:10:00,410 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:10:00,410 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1c7cd7a-e5c4-4572-820a-fc5d17d5a1fd/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 01:10:00,415 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1c7cd7a-e5c4-4572-820a-fc5d17d5a1fd/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 01:10:00,510 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1c7cd7a-e5c4-4572-820a-fc5d17d5a1fd/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-21 01:10:01,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:10:01,143 INFO L263 TraceCheckSpWp]: Trace formula consists of 2025 conjuncts, 119 conjunts are in the unsatisfiable core [2021-11-21 01:10:01,159 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 01:10:01,676 INFO L354 Elim1Store]: treesize reduction 27, result has 41.3 percent of original size [2021-11-21 01:10:01,678 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 38 [2021-11-21 01:10:01,774 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:10:01,797 INFO L354 Elim1Store]: treesize reduction 23, result has 36.1 percent of original size [2021-11-21 01:10:01,798 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 32 [2021-11-21 01:10:10,222 INFO L354 Elim1Store]: treesize reduction 21, result has 16.0 percent of original size [2021-11-21 01:10:10,223 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 117 treesize of output 75 [2021-11-21 01:10:21,478 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:10:21,910 INFO L354 Elim1Store]: treesize reduction 501, result has 11.3 percent of original size [2021-11-21 01:10:21,911 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 7 new quantified variables, introduced 16 case distinctions, treesize of input 188 treesize of output 156 [2021-11-21 01:10:24,362 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 10 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-21 01:10:24,362 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 01:10:34,236 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1458144527] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-21 01:10:34,237 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1529975145] [2021-11-21 01:10:34,272 INFO L159 IcfgInterpreter]: Started Sifa with 52 locations of interest [2021-11-21 01:10:34,273 INFO L166 IcfgInterpreter]: Building call graph [2021-11-21 01:10:34,279 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-21 01:10:34,287 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-21 01:10:34,288 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-21 01:11:49,900 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2021-11-21 01:11:49,913 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 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 [2021-11-21 01:11:50,443 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-21 01:11:50,479 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:11:50,481 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:11:50,484 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:11:50,487 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:11:50,489 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 29 [2021-11-21 01:11:50,534 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-21 01:11:50,573 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:11:50,575 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:11:50,577 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:11:50,578 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 17 [2021-11-21 01:11:50,665 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-21 01:11:50,683 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:11:50,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:11:50,687 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:11:50,688 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 17 [2021-11-21 01:11:50,767 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:11:50,769 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:11:50,771 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:11:50,772 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 17 [2021-11-21 01:11:52,857 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-21 01:13:15,894 INFO L197 IcfgInterpreter]: Interpreting procedure ensure_string_is_allocated_bounded_length with input of size 2428 for LOIs