./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 b5237d83 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b85bb73-8db5-47a3-a356-1f8dbfe6adff/bin/utaipan-g80aRyZoba/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b85bb73-8db5-47a3-a356-1f8dbfe6adff/bin/utaipan-g80aRyZoba/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b85bb73-8db5-47a3-a356-1f8dbfe6adff/bin/utaipan-g80aRyZoba/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b85bb73-8db5-47a3-a356-1f8dbfe6adff/bin/utaipan-g80aRyZoba/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_1b85bb73-8db5-47a3-a356-1f8dbfe6adff/bin/utaipan-g80aRyZoba/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b85bb73-8db5-47a3-a356-1f8dbfe6adff/bin/utaipan-g80aRyZoba --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 --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-b5237d8 [2022-11-22 02:16:50,178 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-22 02:16:50,181 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-22 02:16:50,218 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-22 02:16:50,218 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-22 02:16:50,222 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-22 02:16:50,224 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-22 02:16:50,225 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-22 02:16:50,227 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-22 02:16:50,228 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-22 02:16:50,229 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-22 02:16:50,230 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-22 02:16:50,230 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-22 02:16:50,231 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-22 02:16:50,233 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-22 02:16:50,234 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-22 02:16:50,238 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-22 02:16:50,245 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-22 02:16:50,248 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-22 02:16:50,258 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-22 02:16:50,259 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-22 02:16:50,262 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-22 02:16:50,264 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-22 02:16:50,264 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-22 02:16:50,268 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-22 02:16:50,269 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-22 02:16:50,269 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-22 02:16:50,270 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-22 02:16:50,274 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-22 02:16:50,278 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-22 02:16:50,279 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-22 02:16:50,280 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-22 02:16:50,281 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-22 02:16:50,282 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-22 02:16:50,283 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-22 02:16:50,284 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-22 02:16:50,284 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-22 02:16:50,285 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-22 02:16:50,285 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-22 02:16:50,287 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-22 02:16:50,288 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-22 02:16:50,289 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b85bb73-8db5-47a3-a356-1f8dbfe6adff/bin/utaipan-g80aRyZoba/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-22 02:16:50,316 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-22 02:16:50,316 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-22 02:16:50,317 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-22 02:16:50,317 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-22 02:16:50,318 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-22 02:16:50,318 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-22 02:16:50,318 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-22 02:16:50,318 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-22 02:16:50,318 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-22 02:16:50,319 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-22 02:16:50,319 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-22 02:16:50,319 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-22 02:16:50,319 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-22 02:16:50,319 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-22 02:16:50,320 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-22 02:16:50,320 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-22 02:16:50,320 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-22 02:16:50,320 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-22 02:16:50,321 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-22 02:16:50,321 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-22 02:16:50,321 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-22 02:16:50,322 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-22 02:16:50,322 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-22 02:16:50,322 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-22 02:16:50,322 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-22 02:16:50,323 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-22 02:16:50,323 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-22 02:16:50,323 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-22 02:16:50,323 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-22 02:16:50,323 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 02:16:50,324 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-22 02:16:50,324 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-22 02:16:50,324 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-22 02:16:50,324 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-22 02:16:50,325 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-22 02:16:50,325 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-22 02:16:50,325 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-22 02:16:50,325 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-22 02:16:50,325 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b85bb73-8db5-47a3-a356-1f8dbfe6adff/bin/utaipan-g80aRyZoba/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b85bb73-8db5-47a3-a356-1f8dbfe6adff/bin/utaipan-g80aRyZoba Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2359aa88e8e7d743df9393581b2f3fdb25ac15a45b4f8f680bad72fb64c83223 [2022-11-22 02:16:50,663 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-22 02:16:50,690 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-22 02:16:50,692 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-22 02:16:50,694 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-22 02:16:50,694 INFO L275 PluginConnector]: CDTParser initialized [2022-11-22 02:16:50,696 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b85bb73-8db5-47a3-a356-1f8dbfe6adff/bin/utaipan-g80aRyZoba/../../sv-benchmarks/c/aws-c-common/aws_hash_string_harness.i [2022-11-22 02:16:53,765 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-22 02:16:54,352 INFO L351 CDTParser]: Found 1 translation units. [2022-11-22 02:16:54,352 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b85bb73-8db5-47a3-a356-1f8dbfe6adff/sv-benchmarks/c/aws-c-common/aws_hash_string_harness.i [2022-11-22 02:16:54,402 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b85bb73-8db5-47a3-a356-1f8dbfe6adff/bin/utaipan-g80aRyZoba/data/b1bf13735/642ff8545c054a8f9162fe4c43666a4d/FLAGf7835fec9 [2022-11-22 02:16:54,427 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b85bb73-8db5-47a3-a356-1f8dbfe6adff/bin/utaipan-g80aRyZoba/data/b1bf13735/642ff8545c054a8f9162fe4c43666a4d [2022-11-22 02:16:54,431 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-22 02:16:54,433 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-22 02:16:54,434 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-22 02:16:54,434 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-22 02:16:54,438 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-22 02:16:54,439 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:16:54" (1/1) ... [2022-11-22 02:16:54,440 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7bdec637 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:16:54, skipping insertion in model container [2022-11-22 02:16:54,440 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:16:54" (1/1) ... [2022-11-22 02:16:54,448 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-22 02:16:54,602 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-22 02:16:54,860 WARN L237 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_1b85bb73-8db5-47a3-a356-1f8dbfe6adff/sv-benchmarks/c/aws-c-common/aws_hash_string_harness.i[4489,4502] [2022-11-22 02:16:54,873 WARN L237 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_1b85bb73-8db5-47a3-a356-1f8dbfe6adff/sv-benchmarks/c/aws-c-common/aws_hash_string_harness.i[4549,4562] [2022-11-22 02:16:56,091 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 02:16:56,091 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 02:16:56,109 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 02:16:56,110 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 02:16:56,112 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 02:16:56,123 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 02:16:56,134 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 02:16:56,136 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 02:16:56,137 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 02:16:56,139 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 02:16:56,147 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 02:16:56,148 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 02:16:56,149 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 02:16:56,641 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-11-22 02:16:56,642 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-11-22 02:16:56,643 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-11-22 02:16:56,645 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-11-22 02:16:56,646 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-11-22 02:16:56,647 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-11-22 02:16:56,648 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-11-22 02:16:56,648 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-11-22 02:16:56,649 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-11-22 02:16:56,650 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-11-22 02:16:56,906 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-11-22 02:16:57,246 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 02:16:57,247 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 02:16:57,281 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 02:16:57,284 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 02:16:57,291 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 02:16:57,291 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 02:16:57,314 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 02:16:57,316 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 02:16:57,316 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 02:16:57,317 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 02:16:57,317 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 02:16:57,317 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 02:16:57,318 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 02:16:57,387 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 02:16:57,437 INFO L203 MainTranslator]: Completed pre-run [2022-11-22 02:16:57,463 WARN L237 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_1b85bb73-8db5-47a3-a356-1f8dbfe6adff/sv-benchmarks/c/aws-c-common/aws_hash_string_harness.i[4489,4502] [2022-11-22 02:16:57,464 WARN L237 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_1b85bb73-8db5-47a3-a356-1f8dbfe6adff/sv-benchmarks/c/aws-c-common/aws_hash_string_harness.i[4549,4562] [2022-11-22 02:16:57,511 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 02:16:57,512 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 02:16:57,513 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 02:16:57,514 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 02:16:57,515 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 02:16:57,527 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 02:16:57,527 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 02:16:57,528 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 02:16:57,528 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 02:16:57,531 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 02:16:57,532 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 02:16:57,532 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 02:16:57,532 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 02:16:57,572 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-11-22 02:16:57,573 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-11-22 02:16:57,574 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-11-22 02:16:57,577 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-11-22 02:16:57,578 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-11-22 02:16:57,579 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-11-22 02:16:57,579 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-11-22 02:16:57,580 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-11-22 02:16:57,581 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-11-22 02:16:57,581 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-11-22 02:16:57,658 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-11-22 02:16:57,773 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 02:16:57,774 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 02:16:57,788 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 02:16:57,789 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 02:16:57,792 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 02:16:57,793 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 02:16:57,801 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 02:16:57,802 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 02:16:57,802 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 02:16:57,802 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 02:16:57,803 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 02:16:57,803 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 02:16:57,804 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 02:16:57,829 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 02:16:58,198 INFO L208 MainTranslator]: Completed translation [2022-11-22 02:16:58,199 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:16:58 WrapperNode [2022-11-22 02:16:58,199 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-22 02:16:58,201 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-22 02:16:58,201 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-22 02:16:58,201 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-22 02:16:58,210 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:16:58" (1/1) ... [2022-11-22 02:16:58,349 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:16:58" (1/1) ... [2022-11-22 02:16:58,443 INFO L138 Inliner]: procedures = 774, calls = 2482, calls flagged for inlining = 67, calls inlined = 5, statements flattened = 526 [2022-11-22 02:16:58,443 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-22 02:16:58,445 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-22 02:16:58,445 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-22 02:16:58,446 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-22 02:16:58,455 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:16:58" (1/1) ... [2022-11-22 02:16:58,456 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:16:58" (1/1) ... [2022-11-22 02:16:58,469 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:16:58" (1/1) ... [2022-11-22 02:16:58,470 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:16:58" (1/1) ... [2022-11-22 02:16:58,511 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:16:58" (1/1) ... [2022-11-22 02:16:58,517 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:16:58" (1/1) ... [2022-11-22 02:16:58,525 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:16:58" (1/1) ... [2022-11-22 02:16:58,530 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:16:58" (1/1) ... [2022-11-22 02:16:58,540 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-22 02:16:58,541 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-22 02:16:58,541 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-22 02:16:58,541 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-22 02:16:58,542 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:16:58" (1/1) ... [2022-11-22 02:16:58,549 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 02:16:58,560 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b85bb73-8db5-47a3-a356-1f8dbfe6adff/bin/utaipan-g80aRyZoba/z3 [2022-11-22 02:16:58,574 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b85bb73-8db5-47a3-a356-1f8dbfe6adff/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-22 02:16:58,604 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b85bb73-8db5-47a3-a356-1f8dbfe6adff/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-22 02:16:58,630 INFO L130 BoogieDeclarations]: Found specification of procedure aws_string_is_valid [2022-11-22 02:16:58,630 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_string_is_valid [2022-11-22 02:16:58,630 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_string_is_allocated_bounded_length [2022-11-22 02:16:58,630 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_string_is_allocated_bounded_length [2022-11-22 02:16:58,630 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2022-11-22 02:16:58,631 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2022-11-22 02:16:58,631 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-22 02:16:58,631 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-22 02:16:58,631 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-22 02:16:58,631 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-22 02:16:58,631 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-22 02:16:58,632 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-22 02:16:58,632 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-22 02:16:58,632 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-22 02:16:58,632 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2022-11-22 02:16:58,632 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2022-11-22 02:16:58,633 INFO L130 BoogieDeclarations]: Found specification of procedure aws_string_bytes [2022-11-22 02:16:58,633 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_string_bytes [2022-11-22 02:16:58,633 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-22 02:16:58,633 INFO L130 BoogieDeclarations]: Found specification of procedure hashlittle2 [2022-11-22 02:16:58,633 INFO L138 BoogieDeclarations]: Found implementation of procedure hashlittle2 [2022-11-22 02:16:58,634 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2022-11-22 02:16:58,634 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2022-11-22 02:16:58,634 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-22 02:16:58,634 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-22 02:16:58,634 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-22 02:16:58,634 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-22 02:16:58,635 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-22 02:16:58,635 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2022-11-22 02:16:58,635 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2022-11-22 02:16:58,635 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-22 02:16:59,002 INFO L235 CfgBuilder]: Building ICFG [2022-11-22 02:16:59,004 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-22 02:17:01,264 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##5: assume !true; [2022-11-22 02:17:01,273 INFO L276 CfgBuilder]: Performing block encoding [2022-11-22 02:17:01,541 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-22 02:17:01,542 INFO L300 CfgBuilder]: Removed 5 assume(true) statements. [2022-11-22 02:17:01,546 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:17:01 BoogieIcfgContainer [2022-11-22 02:17:01,546 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-22 02:17:01,550 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-22 02:17:01,550 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-22 02:17:01,554 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-22 02:17:01,555 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 02:16:54" (1/3) ... [2022-11-22 02:17:01,555 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59a83999 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:17:01, skipping insertion in model container [2022-11-22 02:17:01,561 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:16:58" (2/3) ... [2022-11-22 02:17:01,562 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59a83999 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:17:01, skipping insertion in model container [2022-11-22 02:17:01,562 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:17:01" (3/3) ... [2022-11-22 02:17:01,563 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_hash_string_harness.i [2022-11-22 02:17:01,582 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-22 02:17:01,582 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-22 02:17:01,650 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-22 02:17:01,661 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@4cd55e19, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-22 02:17:01,661 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-22 02:17:01,667 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) [2022-11-22 02:17:01,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-11-22 02:17:01,678 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:17:01,679 INFO L195 NwaCegarLoop]: 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] [2022-11-22 02:17:01,680 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 02:17:01,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:17:01,687 INFO L85 PathProgramCache]: Analyzing trace with hash -1922620881, now seen corresponding path program 1 times [2022-11-22 02:17:01,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:17:01,698 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [582662192] [2022-11-22 02:17:01,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:17:01,699 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:17:02,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:17:05,165 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-22 02:17:05,166 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:17:05,166 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [582662192] [2022-11-22 02:17:05,167 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [582662192] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 02:17:05,167 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1127794535] [2022-11-22 02:17:05,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:17:05,167 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 02:17:05,167 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b85bb73-8db5-47a3-a356-1f8dbfe6adff/bin/utaipan-g80aRyZoba/z3 [2022-11-22 02:17:05,175 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b85bb73-8db5-47a3-a356-1f8dbfe6adff/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 02:17:05,195 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b85bb73-8db5-47a3-a356-1f8dbfe6adff/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-22 02:17:05,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:17:05,771 INFO L263 TraceCheckSpWp]: Trace formula consists of 2119 conjuncts, 137 conjunts are in the unsatisfiable core [2022-11-22 02:17:05,784 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 02:17:06,006 INFO L350 Elim1Store]: Elim1 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 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-22 02:17:08,260 INFO L321 Elim1Store]: treesize reduction 21, result has 16.0 percent of original size [2022-11-22 02:17:08,261 INFO L350 Elim1Store]: Elim1 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 56 treesize of output 43 [2022-11-22 02:17:08,907 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:17:08,910 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:17:08,912 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:17:09,002 INFO L321 Elim1Store]: treesize reduction 72, result has 40.5 percent of original size [2022-11-22 02:17:09,003 INFO L350 Elim1Store]: Elim1 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 75 treesize of output 144 [2022-11-22 02:17:09,019 INFO L350 Elim1Store]: Elim1 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 [2022-11-22 02:17:09,072 INFO L350 Elim1Store]: Elim1 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 [2022-11-22 02:17:09,089 INFO L350 Elim1Store]: Elim1 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 [2022-11-22 02:17:09,410 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:17:09,413 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:17:09,430 INFO L321 Elim1Store]: treesize reduction 13, result has 38.1 percent of original size [2022-11-22 02:17:09,431 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 102 treesize of output 70 [2022-11-22 02:17:09,477 INFO L350 Elim1Store]: Elim1 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 9 treesize of output 7 [2022-11-22 02:17:09,479 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-22 02:17:10,890 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-11-22 02:17:10,890 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 02:17:10,891 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1127794535] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:17:10,891 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-22 02:17:10,891 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [10] total 36 [2022-11-22 02:17:10,893 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2103955008] [2022-11-22 02:17:10,894 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:17:10,898 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-11-22 02:17:10,898 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:17:10,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-11-22 02:17:10,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=1179, Unknown=1, NotChecked=0, Total=1260 [2022-11-22 02:17:10,928 INFO L87 Difference]: Start difference. First 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) Second operand has 28 states, 17 states have (on average 1.8823529411764706) internal successors, (32), 19 states have internal predecessors, (32), 9 states have call successors, (14), 4 states have call predecessors, (14), 8 states have return successors, (13), 10 states have call predecessors, (13), 8 states have call successors, (13) [2022-11-22 02:17:18,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:17:18,138 INFO L93 Difference]: Finished difference Result 139 states and 201 transitions. [2022-11-22 02:17:18,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-11-22 02:17:18,142 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 17 states have (on average 1.8823529411764706) internal successors, (32), 19 states have internal predecessors, (32), 9 states have call successors, (14), 4 states have call predecessors, (14), 8 states have return successors, (13), 10 states have call predecessors, (13), 8 states have call successors, (13) Word has length 61 [2022-11-22 02:17:18,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:17:18,152 INFO L225 Difference]: With dead ends: 139 [2022-11-22 02:17:18,153 INFO L226 Difference]: Without dead ends: 86 [2022-11-22 02:17:18,156 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 418 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=215, Invalid=3089, Unknown=2, NotChecked=0, Total=3306 [2022-11-22 02:17:18,164 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 202 mSDsluCounter, 440 mSDsCounter, 0 mSdLazyCounter, 2525 mSolverCounterSat, 48 mSolverCounterUnsat, 50 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 206 SdHoareTripleChecker+Valid, 468 SdHoareTripleChecker+Invalid, 2623 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 2525 IncrementalHoareTripleChecker+Invalid, 50 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2022-11-22 02:17:18,166 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [206 Valid, 468 Invalid, 2623 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 2525 Invalid, 50 Unknown, 0 Unchecked, 4.9s Time] [2022-11-22 02:17:18,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2022-11-22 02:17:18,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 86. [2022-11-22 02:17:18,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 61 states have (on average 1.4754098360655739) internal successors, (90), 61 states have internal predecessors, (90), 15 states have call successors, (15), 10 states have call predecessors, (15), 9 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2022-11-22 02:17:18,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 119 transitions. [2022-11-22 02:17:18,219 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 119 transitions. Word has length 61 [2022-11-22 02:17:18,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:17:18,221 INFO L495 AbstractCegarLoop]: Abstraction has 86 states and 119 transitions. [2022-11-22 02:17:18,222 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 17 states have (on average 1.8823529411764706) internal successors, (32), 19 states have internal predecessors, (32), 9 states have call successors, (14), 4 states have call predecessors, (14), 8 states have return successors, (13), 10 states have call predecessors, (13), 8 states have call successors, (13) [2022-11-22 02:17:18,222 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 119 transitions. [2022-11-22 02:17:18,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2022-11-22 02:17:18,224 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:17:18,225 INFO L195 NwaCegarLoop]: 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, 1] [2022-11-22 02:17:18,245 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b85bb73-8db5-47a3-a356-1f8dbfe6adff/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-22 02:17:18,433 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b85bb73-8db5-47a3-a356-1f8dbfe6adff/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2022-11-22 02:17:18,434 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 02:17:18,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:17:18,434 INFO L85 PathProgramCache]: Analyzing trace with hash -996752226, now seen corresponding path program 1 times [2022-11-22 02:17:18,434 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:17:18,434 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [564839787] [2022-11-22 02:17:18,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:17:18,434 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:17:18,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:17:20,753 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-11-22 02:17:20,753 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:17:20,754 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [564839787] [2022-11-22 02:17:20,754 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [564839787] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 02:17:20,754 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [493372717] [2022-11-22 02:17:20,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:17:20,754 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 02:17:20,754 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b85bb73-8db5-47a3-a356-1f8dbfe6adff/bin/utaipan-g80aRyZoba/z3 [2022-11-22 02:17:20,759 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b85bb73-8db5-47a3-a356-1f8dbfe6adff/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 02:17:20,792 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b85bb73-8db5-47a3-a356-1f8dbfe6adff/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-22 02:17:21,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:17:21,415 INFO L263 TraceCheckSpWp]: Trace formula consists of 2132 conjuncts, 132 conjunts are in the unsatisfiable core [2022-11-22 02:17:21,428 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 02:17:21,544 INFO L350 Elim1Store]: Elim1 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 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-22 02:17:23,571 INFO L321 Elim1Store]: treesize reduction 21, result has 16.0 percent of original size [2022-11-22 02:17:23,571 INFO L350 Elim1Store]: Elim1 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 56 treesize of output 43 [2022-11-22 02:17:24,019 WARN L859 $PredicateComparison]: unable to prove that (exists ((hashlittle2_~pb.base Int) (hashlittle2_~pc.base Int)) (and (<= |c_hashlittle2_#in~pb.base| hashlittle2_~pb.base) (exists ((v_ArrVal_238 (Array Int Int)) (|hashlittle2_~#u~1.base| Int) (v_ArrVal_237 (Array Int Int)) (v_ArrVal_239 (Array Int Int))) (and (< |c_#StackHeapBarrier| |hashlittle2_~#u~1.base|) (= (store (store (store |c_old(#memory_int)| |hashlittle2_~#u~1.base| v_ArrVal_237) hashlittle2_~pc.base v_ArrVal_238) hashlittle2_~pb.base v_ArrVal_239) |c_#memory_int|))) (<= |c_hashlittle2_#in~pc.base| hashlittle2_~pc.base))) is different from true [2022-11-22 02:17:24,104 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:17:24,105 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:17:24,107 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:17:24,156 INFO L321 Elim1Store]: treesize reduction 33, result has 40.0 percent of original size [2022-11-22 02:17:24,157 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 79 treesize of output 86 [2022-11-22 02:17:25,562 INFO L321 Elim1Store]: treesize reduction 168, result has 24.0 percent of original size [2022-11-22 02:17:25,563 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 1 disjoint index pairs (out of 21 index pairs), introduced 11 new quantified variables, introduced 21 case distinctions, treesize of input 187 treesize of output 171 [2022-11-22 02:17:25,918 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-11-22 02:17:25,918 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 02:17:28,599 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse2 (+ |c_ULTIMATE.start_aws_hash_string_~str~3#1.offset| 8)) (.cse5 (not (= |c_ULTIMATE.start_aws_hash_string_~str~3#1.base| 0)))) (and (forall ((v_hashlittle2_~pc.base_10 Int)) (or (forall ((v_hashlittle2_~pb.base_10 Int)) (or (forall ((|v_hashlittle2_~#u~1.base_18| Int)) (or (not (< |c_#StackHeapBarrier| |v_hashlittle2_~#u~1.base_18|)) (forall ((v_ArrVal_248 (Array Int Int)) (v_ArrVal_247 (Array Int Int)) (v_ArrVal_246 (Array Int Int))) (let ((.cse1 (select (store (store (store |c_#memory_int| |v_hashlittle2_~#u~1.base_18| v_ArrVal_247) v_hashlittle2_~pc.base_10 v_ArrVal_248) v_hashlittle2_~pb.base_10 v_ArrVal_246) |c_ULTIMATE.start_aws_hash_string_~str~3#1.base|))) (let ((.cse0 (mod (select .cse1 .cse2) 18446744073709551616))) (or (not (<= .cse0 9223372036854775807)) (= (mod (select .cse1 (+ 16 |c_ULTIMATE.start_aws_hash_string_~str~3#1.offset| .cse0)) 256) 0))))))) (< v_hashlittle2_~pb.base_10 |c_ULTIMATE.start_aws_hash_string_~#b~6#1.base|))) (< v_hashlittle2_~pc.base_10 |c_ULTIMATE.start_aws_hash_string_~#c~8#1.base|))) (forall ((v_hashlittle2_~pc.base_10 Int)) (or (forall ((v_hashlittle2_~pb.base_10 Int)) (or (forall ((|v_hashlittle2_~#u~1.base_18| Int)) (or (not (< |c_#StackHeapBarrier| |v_hashlittle2_~#u~1.base_18|)) (forall ((v_ArrVal_248 (Array Int Int)) (v_ArrVal_247 (Array Int Int)) (v_ArrVal_246 (Array Int Int))) (let ((.cse4 (select (store (store (store |c_#memory_int| |v_hashlittle2_~#u~1.base_18| v_ArrVal_247) v_hashlittle2_~pc.base_10 v_ArrVal_248) v_hashlittle2_~pb.base_10 v_ArrVal_246) |c_ULTIMATE.start_aws_hash_string_~str~3#1.base|))) (let ((.cse3 (mod (select .cse4 .cse2) 18446744073709551616))) (or (<= .cse3 9223372036854775807) (= (mod (select .cse4 (+ |c_ULTIMATE.start_aws_hash_string_~str~3#1.offset| (- 18446744073709551600) .cse3)) 256) 0))))))) (< v_hashlittle2_~pb.base_10 |c_ULTIMATE.start_aws_hash_string_~#b~6#1.base|))) (< v_hashlittle2_~pc.base_10 |c_ULTIMATE.start_aws_hash_string_~#c~8#1.base|))) (or (not (= |c_ULTIMATE.start_aws_hash_string_~str~3#1.offset| 0)) .cse5) (or (not (= 0 (+ 16 |c_ULTIMATE.start_aws_hash_string_~str~3#1.offset|))) (forall ((v_ArrVal_248 (Array Int Int)) (|v_hashlittle2_~#u~1.base_18| Int) (v_hashlittle2_~pb.base_10 Int) (v_ArrVal_247 (Array Int Int)) (v_hashlittle2_~pc.base_10 Int) (v_ArrVal_246 (Array Int Int))) (or (not (< |c_#StackHeapBarrier| |v_hashlittle2_~#u~1.base_18|)) (= (mod (+ (select (select (store (store (store |c_#memory_int| |v_hashlittle2_~#u~1.base_18| v_ArrVal_247) v_hashlittle2_~pc.base_10 v_ArrVal_248) v_hashlittle2_~pb.base_10 v_ArrVal_246) |c_ULTIMATE.start_aws_hash_string_~str~3#1.base|) .cse2) 1) 18446744073709551616) 0) (< v_hashlittle2_~pb.base_10 |c_ULTIMATE.start_aws_hash_string_~#b~6#1.base|) (< v_hashlittle2_~pc.base_10 |c_ULTIMATE.start_aws_hash_string_~#c~8#1.base|))) .cse5))) is different from false [2022-11-22 02:17:28,605 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [493372717] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 02:17:28,606 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1524715643] [2022-11-22 02:17:28,634 INFO L159 IcfgInterpreter]: Started Sifa with 52 locations of interest [2022-11-22 02:17:28,634 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 02:17:28,638 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 02:17:28,645 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 02:17:28,646 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 02:17:33,213 INFO L350 Elim1Store]: Elim1 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 8 treesize of output 7 [2022-11-22 02:17:33,218 INFO L350 Elim1Store]: Elim1 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 [2022-11-22 02:17:33,313 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:17:33,315 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:17:33,320 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:17:33,321 INFO L350 Elim1Store]: Elim1 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 [2022-11-22 02:17:33,340 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:17:33,343 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:17:33,346 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:17:33,347 INFO L350 Elim1Store]: Elim1 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 [2022-11-22 02:17:33,366 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:17:33,369 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:17:33,371 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:17:33,372 INFO L350 Elim1Store]: Elim1 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 [2022-11-22 02:17:33,389 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:17:33,392 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:17:33,397 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:17:33,400 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:17:33,401 INFO L350 Elim1Store]: Elim1 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 [2022-11-22 02:17:34,999 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-22 02:17:38,648 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-22 02:17:40,814 INFO L197 IcfgInterpreter]: Interpreting procedure ensure_string_is_allocated_bounded_length with input of size 2423 for LOIs [2022-11-22 02:18:34,302 INFO L197 IcfgInterpreter]: Interpreting procedure nondet_uint64_t with input of size 2408 for LOIs [2022-11-22 02:18:36,819 INFO L197 IcfgInterpreter]: Interpreting procedure bounded_malloc with input of size 2432 for LOIs [2022-11-22 02:19:01,379 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 2474 for LOIs [2022-11-22 02:19:19,357 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-22 02:19:58,413 WARN L233 SmtUtils]: Spent 37.12s on a formula simplification that was a NOOP. DAG size: 2408 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-22 02:20:38,818 WARN L233 SmtUtils]: Spent 38.32s on a formula simplification that was a NOOP. DAG size: 2423 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-22 02:21:19,450 WARN L233 SmtUtils]: Spent 38.49s on a formula simplification that was a NOOP. DAG size: 2425 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-22 02:23:20,679 WARN L233 SmtUtils]: Spent 1.90m on a formula simplification. DAG size of input: 2474 DAG size of output: 2421 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-22 02:25:18,078 WARN L233 SmtUtils]: Spent 1.91m on a formula simplification. DAG size of input: 2479 DAG size of output: 2438 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-22 02:26:39,935 WARN L233 SmtUtils]: Spent 1.32m on a formula simplification. DAG size of input: 2446 DAG size of output: 2439 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-22 02:28:02,150 WARN L233 SmtUtils]: Spent 1.33m on a formula simplification. DAG size of input: 2450 DAG size of output: 2443 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-22 02:29:22,276 WARN L233 SmtUtils]: Spent 1.29m on a formula simplification. DAG size of input: 2432 DAG size of output: 2426 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-22 02:30:42,475 WARN L233 SmtUtils]: Spent 1.29m on a formula simplification. DAG size of input: 2434 DAG size of output: 2428 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-22 02:30:42,551 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1524715643] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:30:42,551 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-22 02:30:42,551 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [10, 28] total 45 [2022-11-22 02:30:42,552 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [467037132] [2022-11-22 02:30:42,552 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:30:42,553 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-22 02:30:42,553 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:30:42,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-22 02:30:42,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=152, Invalid=2206, Unknown=2, NotChecked=190, Total=2550 [2022-11-22 02:30:42,555 INFO L87 Difference]: Start difference. First operand 86 states and 119 transitions. Second operand has 11 states, 8 states have (on average 3.75) internal successors, (30), 6 states have internal predecessors, (30), 5 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (13), 3 states have call predecessors, (13), 5 states have call successors, (13) [2022-11-22 02:30:45,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:30:45,614 INFO L93 Difference]: Finished difference Result 88 states and 120 transitions. [2022-11-22 02:30:45,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-22 02:30:45,618 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 8 states have (on average 3.75) internal successors, (30), 6 states have internal predecessors, (30), 5 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (13), 3 states have call predecessors, (13), 5 states have call successors, (13) Word has length 62 [2022-11-22 02:30:45,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:30:45,618 INFO L225 Difference]: With dead ends: 88 [2022-11-22 02:30:45,618 INFO L226 Difference]: Without dead ends: 0 [2022-11-22 02:30:45,620 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 92 SyntacticMatches, 2 SemanticMatches, 49 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 327 ImplicationChecksByTransitivity, 685.6s TimeCoverageRelationStatistics Valid=152, Invalid=2206, Unknown=2, NotChecked=190, Total=2550 [2022-11-22 02:30:45,620 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 10 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2022-11-22 02:30:45,621 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 8 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2022-11-22 02:30:45,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-22 02:30:45,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-22 02:30:45,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:30:45,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-22 02:30:45,622 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 62 [2022-11-22 02:30:45,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:30:45,623 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-22 02:30:45,623 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 8 states have (on average 3.75) internal successors, (30), 6 states have internal predecessors, (30), 5 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (13), 3 states have call predecessors, (13), 5 states have call successors, (13) [2022-11-22 02:30:45,623 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-22 02:30:45,623 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-22 02:30:45,625 INFO L805 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-22 02:30:45,635 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b85bb73-8db5-47a3-a356-1f8dbfe6adff/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-22 02:30:45,826 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b85bb73-8db5-47a3-a356-1f8dbfe6adff/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 02:30:45,828 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.