./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 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1841dab4-7e33-4af3-b814-38fdbcfc0c0d/bin/utaipan-eEHZpOm5b7/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1841dab4-7e33-4af3-b814-38fdbcfc0c0d/bin/utaipan-eEHZpOm5b7/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1841dab4-7e33-4af3-b814-38fdbcfc0c0d/bin/utaipan-eEHZpOm5b7/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1841dab4-7e33-4af3-b814-38fdbcfc0c0d/bin/utaipan-eEHZpOm5b7/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_1841dab4-7e33-4af3-b814-38fdbcfc0c0d/bin/utaipan-eEHZpOm5b7/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1841dab4-7e33-4af3-b814-38fdbcfc0c0d/bin/utaipan-eEHZpOm5b7 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 2359aa88e8e7d743df9393581b2f3fdb25ac15a45b4f8f680bad72fb64c83223 --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-11-25 19:27:24,205 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-25 19:27:24,208 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-25 19:27:24,247 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-25 19:27:24,248 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-25 19:27:24,249 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-25 19:27:24,252 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-25 19:27:24,255 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-25 19:27:24,257 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-25 19:27:24,259 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-25 19:27:24,261 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-25 19:27:24,263 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-25 19:27:24,263 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-25 19:27:24,265 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-25 19:27:24,267 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-25 19:27:24,269 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-25 19:27:24,270 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-25 19:27:24,272 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-25 19:27:24,275 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-25 19:27:24,278 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-25 19:27:24,281 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-25 19:27:24,290 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-25 19:27:24,293 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-25 19:27:24,295 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-25 19:27:24,305 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-25 19:27:24,310 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-25 19:27:24,311 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-25 19:27:24,313 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-25 19:27:24,315 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-25 19:27:24,316 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-25 19:27:24,318 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-25 19:27:24,319 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-25 19:27:24,321 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-25 19:27:24,324 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-25 19:27:24,326 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-25 19:27:24,326 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-25 19:27:24,327 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-25 19:27:24,328 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-25 19:27:24,328 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-25 19:27:24,330 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-25 19:27:24,331 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-25 19:27:24,332 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1841dab4-7e33-4af3-b814-38fdbcfc0c0d/bin/utaipan-eEHZpOm5b7/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-25 19:27:24,387 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-25 19:27:24,391 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-25 19:27:24,392 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-25 19:27:24,393 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-25 19:27:24,394 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-25 19:27:24,394 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-25 19:27:24,394 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-25 19:27:24,395 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-25 19:27:24,395 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-25 19:27:24,395 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-25 19:27:24,395 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-25 19:27:24,396 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-25 19:27:24,396 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-25 19:27:24,396 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-25 19:27:24,397 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-25 19:27:24,397 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-25 19:27:24,397 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-25 19:27:24,398 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-25 19:27:24,399 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-25 19:27:24,399 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-25 19:27:24,399 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-25 19:27:24,400 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-25 19:27:24,400 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-25 19:27:24,400 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-25 19:27:24,401 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-25 19:27:24,401 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-25 19:27:24,401 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-25 19:27:24,402 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-25 19:27:24,402 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-25 19:27:24,402 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 19:27:24,403 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-25 19:27:24,403 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-25 19:27:24,404 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-25 19:27:24,404 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-25 19:27:24,405 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-25 19:27:24,405 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-25 19:27:24,407 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-25 19:27:24,407 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-25 19:27:24,408 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_1841dab4-7e33-4af3-b814-38fdbcfc0c0d/bin/utaipan-eEHZpOm5b7/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1841dab4-7e33-4af3-b814-38fdbcfc0c0d/bin/utaipan-eEHZpOm5b7 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2359aa88e8e7d743df9393581b2f3fdb25ac15a45b4f8f680bad72fb64c83223 [2021-11-25 19:27:24,713 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-25 19:27:24,744 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-25 19:27:24,747 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-25 19:27:24,749 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-25 19:27:24,750 INFO L275 PluginConnector]: CDTParser initialized [2021-11-25 19:27:24,752 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1841dab4-7e33-4af3-b814-38fdbcfc0c0d/bin/utaipan-eEHZpOm5b7/../../sv-benchmarks/c/aws-c-common/aws_hash_string_harness.i [2021-11-25 19:27:24,863 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1841dab4-7e33-4af3-b814-38fdbcfc0c0d/bin/utaipan-eEHZpOm5b7/data/2119ae15c/e7c28f2a77a843778e6f38acd410e04f/FLAG2fef2b3d0 [2021-11-25 19:27:25,935 INFO L306 CDTParser]: Found 1 translation units. [2021-11-25 19:27:25,936 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1841dab4-7e33-4af3-b814-38fdbcfc0c0d/sv-benchmarks/c/aws-c-common/aws_hash_string_harness.i [2021-11-25 19:27:25,982 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1841dab4-7e33-4af3-b814-38fdbcfc0c0d/bin/utaipan-eEHZpOm5b7/data/2119ae15c/e7c28f2a77a843778e6f38acd410e04f/FLAG2fef2b3d0 [2021-11-25 19:27:26,295 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1841dab4-7e33-4af3-b814-38fdbcfc0c0d/bin/utaipan-eEHZpOm5b7/data/2119ae15c/e7c28f2a77a843778e6f38acd410e04f [2021-11-25 19:27:26,298 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-25 19:27:26,300 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-25 19:27:26,302 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-25 19:27:26,302 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-25 19:27:26,307 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-25 19:27:26,308 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 07:27:26" (1/1) ... [2021-11-25 19:27:26,309 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@346f3516 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:27:26, skipping insertion in model container [2021-11-25 19:27:26,309 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 07:27:26" (1/1) ... [2021-11-25 19:27:26,328 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-25 19:27:26,536 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-25 19:27:26,971 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_1841dab4-7e33-4af3-b814-38fdbcfc0c0d/sv-benchmarks/c/aws-c-common/aws_hash_string_harness.i[4489,4502] [2021-11-25 19:27:26,979 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_1841dab4-7e33-4af3-b814-38fdbcfc0c0d/sv-benchmarks/c/aws-c-common/aws_hash_string_harness.i[4549,4562] [2021-11-25 19:27:28,634 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 19:27:28,635 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 19:27:28,636 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 19:27:28,637 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 19:27:28,639 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 19:27:28,665 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 19:27:28,668 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 19:27:28,674 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 19:27:28,678 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 19:27:28,684 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 19:27:28,686 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 19:27:28,688 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 19:27:28,689 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 19:27:29,286 WARN L610 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-25 19:27:29,288 WARN L610 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-25 19:27:29,289 WARN L610 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-25 19:27:29,291 WARN L610 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-25 19:27:29,293 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-25 19:27:29,294 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-25 19:27:29,294 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-25 19:27:29,295 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-25 19:27:29,296 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-25 19:27:29,297 WARN L610 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-25 19:27:29,566 WARN L610 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-25 19:27:30,029 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 19:27:30,030 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 19:27:30,059 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 19:27:30,060 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 19:27:30,068 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 19:27:30,069 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 19:27:30,088 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 19:27:30,090 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 19:27:30,091 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 19:27:30,091 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 19:27:30,092 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 19:27:30,093 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 19:27:30,093 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 19:27:30,142 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 19:27:30,188 INFO L203 MainTranslator]: Completed pre-run [2021-11-25 19:27:30,216 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_1841dab4-7e33-4af3-b814-38fdbcfc0c0d/sv-benchmarks/c/aws-c-common/aws_hash_string_harness.i[4489,4502] [2021-11-25 19:27:30,224 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_1841dab4-7e33-4af3-b814-38fdbcfc0c0d/sv-benchmarks/c/aws-c-common/aws_hash_string_harness.i[4549,4562] [2021-11-25 19:27:30,262 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 19:27:30,263 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 19:27:30,263 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 19:27:30,264 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 19:27:30,265 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 19:27:30,272 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 19:27:30,273 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 19:27:30,274 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 19:27:30,274 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 19:27:30,276 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 19:27:30,276 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 19:27:30,277 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 19:27:30,277 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 19:27:30,320 WARN L610 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-25 19:27:30,324 WARN L610 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-25 19:27:30,325 WARN L610 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-25 19:27:30,326 WARN L610 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-25 19:27:30,327 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-25 19:27:30,328 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-25 19:27:30,329 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-25 19:27:30,330 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-25 19:27:30,330 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-25 19:27:30,332 WARN L610 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-25 19:27:30,411 WARN L610 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-25 19:27:30,588 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 19:27:30,589 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 19:27:30,612 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 19:27:30,613 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 19:27:30,617 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 19:27:30,618 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 19:27:30,630 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 19:27:30,632 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 19:27:30,633 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 19:27:30,634 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 19:27:30,634 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 19:27:30,635 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 19:27:30,636 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 19:27:30,670 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 19:27:31,011 INFO L208 MainTranslator]: Completed translation [2021-11-25 19:27:31,011 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:27:31 WrapperNode [2021-11-25 19:27:31,012 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-25 19:27:31,013 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-25 19:27:31,013 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-25 19:27:31,014 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-25 19:27:31,024 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:27:31" (1/1) ... [2021-11-25 19:27:31,194 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:27:31" (1/1) ... [2021-11-25 19:27:31,304 INFO L137 Inliner]: procedures = 774, calls = 2483, calls flagged for inlining = 67, calls inlined = 5, statements flattened = 527 [2021-11-25 19:27:31,305 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-25 19:27:31,308 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-25 19:27:31,308 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-25 19:27:31,308 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-25 19:27:31,322 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:27:31" (1/1) ... [2021-11-25 19:27:31,322 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:27:31" (1/1) ... [2021-11-25 19:27:31,357 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:27:31" (1/1) ... [2021-11-25 19:27:31,358 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:27:31" (1/1) ... [2021-11-25 19:27:31,410 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:27:31" (1/1) ... [2021-11-25 19:27:31,418 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:27:31" (1/1) ... [2021-11-25 19:27:31,430 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:27:31" (1/1) ... [2021-11-25 19:27:31,462 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-25 19:27:31,463 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-25 19:27:31,463 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-25 19:27:31,463 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-25 19:27:31,468 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:27:31" (1/1) ... [2021-11-25 19:27:31,479 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 19:27:31,493 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1841dab4-7e33-4af3-b814-38fdbcfc0c0d/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 19:27:31,516 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1841dab4-7e33-4af3-b814-38fdbcfc0c0d/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-25 19:27:31,546 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1841dab4-7e33-4af3-b814-38fdbcfc0c0d/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-25 19:27:31,580 INFO L130 BoogieDeclarations]: Found specification of procedure aws_string_is_valid [2021-11-25 19:27:31,580 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_string_is_valid [2021-11-25 19:27:31,580 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_string_is_allocated_bounded_length [2021-11-25 19:27:31,581 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_string_is_allocated_bounded_length [2021-11-25 19:27:31,581 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2021-11-25 19:27:31,581 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2021-11-25 19:27:31,581 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-25 19:27:31,582 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-25 19:27:31,582 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-25 19:27:31,582 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-25 19:27:31,582 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-25 19:27:31,583 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-25 19:27:31,583 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-25 19:27:31,583 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-25 19:27:31,583 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2021-11-25 19:27:31,584 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2021-11-25 19:27:31,585 INFO L130 BoogieDeclarations]: Found specification of procedure aws_string_bytes [2021-11-25 19:27:31,585 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_string_bytes [2021-11-25 19:27:31,586 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-25 19:27:31,586 INFO L130 BoogieDeclarations]: Found specification of procedure hashlittle2 [2021-11-25 19:27:31,586 INFO L138 BoogieDeclarations]: Found implementation of procedure hashlittle2 [2021-11-25 19:27:31,586 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2021-11-25 19:27:31,586 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2021-11-25 19:27:31,587 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-25 19:27:31,587 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-25 19:27:31,587 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-11-25 19:27:31,587 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-11-25 19:27:31,587 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-25 19:27:31,588 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2021-11-25 19:27:31,588 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2021-11-25 19:27:31,589 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-25 19:27:32,027 INFO L236 CfgBuilder]: Building ICFG [2021-11-25 19:27:32,031 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-25 19:27:33,524 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##5: assume !true; [2021-11-25 19:27:33,536 INFO L277 CfgBuilder]: Performing block encoding [2021-11-25 19:27:33,828 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-25 19:27:33,832 INFO L301 CfgBuilder]: Removed 5 assume(true) statements. [2021-11-25 19:27:33,836 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 07:27:33 BoogieIcfgContainer [2021-11-25 19:27:33,836 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-25 19:27:33,838 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-25 19:27:33,839 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-25 19:27:33,844 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-25 19:27:33,845 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 07:27:26" (1/3) ... [2021-11-25 19:27:33,846 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7993690c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 07:27:33, skipping insertion in model container [2021-11-25 19:27:33,847 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:27:31" (2/3) ... [2021-11-25 19:27:33,855 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7993690c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 07:27:33, skipping insertion in model container [2021-11-25 19:27:33,855 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 07:27:33" (3/3) ... [2021-11-25 19:27:33,857 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_hash_string_harness.i [2021-11-25 19:27:33,868 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-25 19:27:33,868 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-25 19:27:33,947 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-25 19:27:33,967 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-25 19:27:33,967 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-25 19:27:33,998 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) [2021-11-25 19:27:34,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-11-25 19:27:34,011 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:27:34,012 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] [2021-11-25 19:27:34,012 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 19:27:34,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:27:34,024 INFO L85 PathProgramCache]: Analyzing trace with hash -1922620881, now seen corresponding path program 1 times [2021-11-25 19:27:34,036 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:27:34,037 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1543310376] [2021-11-25 19:27:34,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:27:34,038 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:27:35,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:27:35,752 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-11-25 19:27:35,753 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:27:35,754 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1543310376] [2021-11-25 19:27:35,755 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1543310376] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 19:27:35,755 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [336079342] [2021-11-25 19:27:35,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:27:35,756 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 19:27:35,756 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1841dab4-7e33-4af3-b814-38fdbcfc0c0d/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 19:27:35,760 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1841dab4-7e33-4af3-b814-38fdbcfc0c0d/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 19:27:35,788 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1841dab4-7e33-4af3-b814-38fdbcfc0c0d/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-25 19:27:36,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:27:36,538 INFO L263 TraceCheckSpWp]: Trace formula consists of 2117 conjuncts, 128 conjunts are in the unsatisfiable core [2021-11-25 19:27:36,559 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 19:27:36,918 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 51 [2021-11-25 19:27:36,964 INFO L354 Elim1Store]: treesize reduction 27, result has 41.3 percent of original size [2021-11-25 19:27:36,965 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 1 case distinctions, treesize of input 22 treesize of output 32 [2021-11-25 19:27:37,062 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:27:37,066 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:27:37,067 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 0 case distinctions, treesize of input 22 treesize of output 26 [2021-11-25 19:27:46,420 INFO L354 Elim1Store]: treesize reduction 21, result has 16.0 percent of original size [2021-11-25 19:27:46,421 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 110 treesize of output 68 [2021-11-25 19:27:47,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:27:47,745 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:27:47,746 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:27:47,839 INFO L354 Elim1Store]: treesize reduction 72, result has 40.5 percent of original size [2021-11-25 19:27:47,840 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 161 treesize of output 177 [2021-11-25 19:27:47,864 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 15 [2021-11-25 19:27:47,973 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 12 treesize of output 11 [2021-11-25 19:27:48,048 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 12 treesize of output 11 [2021-11-25 19:27:49,396 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:27:49,398 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2021-11-25 19:27:49,444 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:27:49,449 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:27:49,451 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:27:49,452 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 23 [2021-11-25 19:27:49,468 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 10 [2021-11-25 19:27:49,561 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 19:27:49,660 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:27:49,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:27:49,665 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:27:49,667 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 28 [2021-11-25 19:27:50,002 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 19:27:50,180 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:27:50,182 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:27:50,184 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 130 treesize of output 100 [2021-11-25 19:27:50,255 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:27:50,257 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:27:50,259 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:27:50,266 INFO L354 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2021-11-25 19:27:50,267 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 144 treesize of output 110 [2021-11-25 19:27:50,320 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:27:50,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:27:50,324 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 134 treesize of output 104 [2021-11-25 19:27:50,334 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 19:27:50,392 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:27:50,395 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:27:50,398 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:27:50,405 INFO L354 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2021-11-25 19:27:50,406 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 136 treesize of output 104 [2021-11-25 19:27:50,439 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:27:50,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:27:50,442 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 122 treesize of output 94 [2021-11-25 19:27:50,477 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:27:50,479 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:27:50,481 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 126 treesize of output 98 [2021-11-25 19:27:50,489 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 19:27:52,181 INFO L354 Elim1Store]: treesize reduction 100, result has 1.0 percent of original size [2021-11-25 19:27:52,182 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 2 disjoint index pairs (out of 10 index pairs), introduced 8 new quantified variables, introduced 10 case distinctions, treesize of input 166 treesize of output 91 [2021-11-25 19:27:52,421 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 10 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-25 19:27:52,421 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 19:27:58,025 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [336079342] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 19:27:58,025 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [83600806] [2021-11-25 19:27:58,076 INFO L159 IcfgInterpreter]: Started Sifa with 52 locations of interest [2021-11-25 19:27:58,083 INFO L166 IcfgInterpreter]: Building call graph [2021-11-25 19:27:58,089 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-25 19:27:58,097 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-25 19:27:58,098 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-25 19:28:03,244 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 [2021-11-25 19:28:03,251 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 [2021-11-25 19:28:03,357 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:28:03,366 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:28:03,375 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:28:03,376 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 55 treesize of output 17 [2021-11-25 19:28:03,399 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:28:03,406 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:28:03,418 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:28:03,420 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 55 treesize of output 17 [2021-11-25 19:28:03,452 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:28:03,459 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:28:03,464 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:28:03,466 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 55 treesize of output 17 [2021-11-25 19:28:03,488 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:28:03,492 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:28:03,500 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:28:03,504 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:28:03,506 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 35 treesize of output 40 [2021-11-25 19:28:05,790 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 19:28:09,567 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 19:28:11,688 INFO L197 IcfgInterpreter]: Interpreting procedure ensure_string_is_allocated_bounded_length with input of size 2428 for LOIs [2021-11-25 19:29:00,575 INFO L197 IcfgInterpreter]: Interpreting procedure nondet_uint64_t with input of size 2413 for LOIs [2021-11-25 19:29:02,236 INFO L197 IcfgInterpreter]: Interpreting procedure bounded_malloc with input of size 2437 for LOIs [2021-11-25 19:29:21,327 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 2479 for LOIs [2021-11-25 19:29:35,720 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-25 19:30:13,193 WARN L227 SmtUtils]: Spent 35.25s on a formula simplification that was a NOOP. DAG size: 2413 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-25 19:30:50,815 WARN L227 SmtUtils]: Spent 35.39s on a formula simplification that was a NOOP. DAG size: 2428 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-25 19:31:30,415 WARN L227 SmtUtils]: Spent 37.12s on a formula simplification that was a NOOP. DAG size: 2430 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-25 19:33:56,176 WARN L227 SmtUtils]: Spent 1.86m on a formula simplification. DAG size of input: 2479 DAG size of output: 2435 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-25 19:36:14,837 WARN L227 SmtUtils]: Spent 1.84m on a formula simplification. DAG size of input: 2484 DAG size of output: 2439 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-25 19:37:29,328 WARN L227 SmtUtils]: Spent 1.19m on a formula simplification. DAG size of input: 2451 DAG size of output: 2445 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-25 19:38:35,650 WARN L227 SmtUtils]: Spent 1.07m on a formula simplification. DAG size of input: 2455 DAG size of output: 2449 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)