./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 5e519f3a 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_cb881c8e-2663-4aff-85d8-4e44c1bc419d/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb881c8e-2663-4aff-85d8-4e44c1bc419d/bin/utaipan-7li7fVZpFI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb881c8e-2663-4aff-85d8-4e44c1bc419d/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb881c8e-2663-4aff-85d8-4e44c1bc419d/bin/utaipan-7li7fVZpFI/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_cb881c8e-2663-4aff-85d8-4e44c1bc419d/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb881c8e-2663-4aff-85d8-4e44c1bc419d/bin/utaipan-7li7fVZpFI --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-5e519f3 [2022-11-03 03:56:22,151 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 03:56:22,154 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 03:56:22,205 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 03:56:22,206 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 03:56:22,209 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 03:56:22,212 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 03:56:22,216 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 03:56:22,218 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 03:56:22,224 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 03:56:22,225 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 03:56:22,227 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 03:56:22,228 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 03:56:22,230 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 03:56:22,232 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 03:56:22,234 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 03:56:22,236 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 03:56:22,237 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 03:56:22,238 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 03:56:22,247 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 03:56:22,249 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 03:56:22,250 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 03:56:22,253 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 03:56:22,255 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 03:56:22,263 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 03:56:22,264 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 03:56:22,264 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 03:56:22,266 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 03:56:22,267 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 03:56:22,268 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 03:56:22,268 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 03:56:22,271 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 03:56:22,273 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 03:56:22,274 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 03:56:22,276 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 03:56:22,276 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 03:56:22,277 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 03:56:22,277 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 03:56:22,277 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 03:56:22,278 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 03:56:22,279 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 03:56:22,280 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb881c8e-2663-4aff-85d8-4e44c1bc419d/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-03 03:56:22,320 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 03:56:22,321 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 03:56:22,322 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 03:56:22,322 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 03:56:22,323 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 03:56:22,323 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 03:56:22,324 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 03:56:22,324 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 03:56:22,324 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 03:56:22,324 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-03 03:56:22,326 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 03:56:22,326 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 03:56:22,326 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-03 03:56:22,326 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-03 03:56:22,327 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 03:56:22,327 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-03 03:56:22,327 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-03 03:56:22,327 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-03 03:56:22,328 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 03:56:22,329 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-03 03:56:22,329 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 03:56:22,329 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-03 03:56:22,329 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 03:56:22,331 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-03 03:56:22,331 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-03 03:56:22,332 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 03:56:22,332 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-03 03:56:22,332 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 03:56:22,332 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 03:56:22,333 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 03:56:22,333 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 03:56:22,333 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-03 03:56:22,334 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 03:56:22,334 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-03 03:56:22,334 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-03 03:56:22,334 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-03 03:56:22,335 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-03 03:56:22,335 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 03:56:22,335 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_cb881c8e-2663-4aff-85d8-4e44c1bc419d/bin/utaipan-7li7fVZpFI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb881c8e-2663-4aff-85d8-4e44c1bc419d/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2359aa88e8e7d743df9393581b2f3fdb25ac15a45b4f8f680bad72fb64c83223 [2022-11-03 03:56:22,633 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 03:56:22,655 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 03:56:22,658 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 03:56:22,659 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 03:56:22,660 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 03:56:22,668 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb881c8e-2663-4aff-85d8-4e44c1bc419d/bin/utaipan-7li7fVZpFI/../../sv-benchmarks/c/aws-c-common/aws_hash_string_harness.i [2022-11-03 03:56:22,746 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb881c8e-2663-4aff-85d8-4e44c1bc419d/bin/utaipan-7li7fVZpFI/data/03986cb7c/693edb530e4f4ab789857a92c8995c4f/FLAGb1ab6aa33 [2022-11-03 03:56:23,559 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 03:56:23,560 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb881c8e-2663-4aff-85d8-4e44c1bc419d/sv-benchmarks/c/aws-c-common/aws_hash_string_harness.i [2022-11-03 03:56:23,603 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb881c8e-2663-4aff-85d8-4e44c1bc419d/bin/utaipan-7li7fVZpFI/data/03986cb7c/693edb530e4f4ab789857a92c8995c4f/FLAGb1ab6aa33 [2022-11-03 03:56:24,111 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb881c8e-2663-4aff-85d8-4e44c1bc419d/bin/utaipan-7li7fVZpFI/data/03986cb7c/693edb530e4f4ab789857a92c8995c4f [2022-11-03 03:56:24,113 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 03:56:24,116 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 03:56:24,119 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 03:56:24,119 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 03:56:24,123 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 03:56:24,125 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:56:24" (1/1) ... [2022-11-03 03:56:24,126 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@69ad367 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:56:24, skipping insertion in model container [2022-11-03 03:56:24,126 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:56:24" (1/1) ... [2022-11-03 03:56:24,134 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 03:56:24,265 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 03:56:24,639 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_cb881c8e-2663-4aff-85d8-4e44c1bc419d/sv-benchmarks/c/aws-c-common/aws_hash_string_harness.i[4489,4502] [2022-11-03 03:56:24,646 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_cb881c8e-2663-4aff-85d8-4e44c1bc419d/sv-benchmarks/c/aws-c-common/aws_hash_string_harness.i[4549,4562] [2022-11-03 03:56:25,768 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 03:56:25,768 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 03:56:25,769 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 03:56:25,770 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 03:56:25,771 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 03:56:25,786 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 03:56:25,787 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 03:56:25,789 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 03:56:25,790 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 03:56:25,792 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 03:56:25,794 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 03:56:25,795 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 03:56:25,795 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 03:56:26,277 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-11-03 03:56:26,278 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-11-03 03:56:26,279 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-11-03 03:56:26,281 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-11-03 03:56:26,282 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-11-03 03:56:26,283 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-11-03 03:56:26,284 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-11-03 03:56:26,285 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-11-03 03:56:26,285 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-11-03 03:56:26,286 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-11-03 03:56:26,602 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-11-03 03:56:26,943 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 03:56:26,947 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 03:56:26,983 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 03:56:26,986 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 03:56:26,994 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 03:56:26,994 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 03:56:27,021 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 03:56:27,026 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 03:56:27,027 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 03:56:27,027 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 03:56:27,028 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 03:56:27,028 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 03:56:27,029 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 03:56:27,092 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 03:56:27,146 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 03:56:27,183 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_cb881c8e-2663-4aff-85d8-4e44c1bc419d/sv-benchmarks/c/aws-c-common/aws_hash_string_harness.i[4489,4502] [2022-11-03 03:56:27,184 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_cb881c8e-2663-4aff-85d8-4e44c1bc419d/sv-benchmarks/c/aws-c-common/aws_hash_string_harness.i[4549,4562] [2022-11-03 03:56:27,289 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 03:56:27,290 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 03:56:27,291 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 03:56:27,292 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 03:56:27,293 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 03:56:27,303 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 03:56:27,304 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 03:56:27,304 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 03:56:27,305 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 03:56:27,307 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 03:56:27,308 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 03:56:27,308 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 03:56:27,309 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 03:56:27,348 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-11-03 03:56:27,352 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-11-03 03:56:27,352 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-11-03 03:56:27,353 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-11-03 03:56:27,354 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-11-03 03:56:27,355 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-11-03 03:56:27,355 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-11-03 03:56:27,356 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-11-03 03:56:27,356 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-11-03 03:56:27,357 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-11-03 03:56:27,385 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-11-03 03:56:27,520 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 03:56:27,521 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 03:56:27,537 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 03:56:27,538 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 03:56:27,540 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 03:56:27,541 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 03:56:27,578 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 03:56:27,579 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 03:56:27,579 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 03:56:27,579 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 03:56:27,580 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 03:56:27,580 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 03:56:27,581 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 03:56:27,606 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 03:56:27,935 INFO L208 MainTranslator]: Completed translation [2022-11-03 03:56:27,936 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:56:27 WrapperNode [2022-11-03 03:56:27,936 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 03:56:27,937 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 03:56:27,938 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 03:56:27,938 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 03:56:27,945 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:56:27" (1/1) ... [2022-11-03 03:56:28,098 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:56:27" (1/1) ... [2022-11-03 03:56:28,150 INFO L138 Inliner]: procedures = 774, calls = 2483, calls flagged for inlining = 67, calls inlined = 5, statements flattened = 527 [2022-11-03 03:56:28,151 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 03:56:28,152 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 03:56:28,152 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 03:56:28,152 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 03:56:28,162 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:56:27" (1/1) ... [2022-11-03 03:56:28,162 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:56:27" (1/1) ... [2022-11-03 03:56:28,171 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:56:27" (1/1) ... [2022-11-03 03:56:28,171 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:56:27" (1/1) ... [2022-11-03 03:56:28,206 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:56:27" (1/1) ... [2022-11-03 03:56:28,211 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:56:27" (1/1) ... [2022-11-03 03:56:28,220 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:56:27" (1/1) ... [2022-11-03 03:56:28,226 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:56:27" (1/1) ... [2022-11-03 03:56:28,237 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 03:56:28,238 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 03:56:28,238 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 03:56:28,238 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 03:56:28,239 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:56:27" (1/1) ... [2022-11-03 03:56:28,271 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 03:56:28,284 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb881c8e-2663-4aff-85d8-4e44c1bc419d/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 03:56:28,309 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb881c8e-2663-4aff-85d8-4e44c1bc419d/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 03:56:28,339 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb881c8e-2663-4aff-85d8-4e44c1bc419d/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 03:56:28,363 INFO L130 BoogieDeclarations]: Found specification of procedure aws_string_is_valid [2022-11-03 03:56:28,363 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_string_is_valid [2022-11-03 03:56:28,364 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_string_is_allocated_bounded_length [2022-11-03 03:56:28,364 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_string_is_allocated_bounded_length [2022-11-03 03:56:28,364 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2022-11-03 03:56:28,365 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2022-11-03 03:56:28,365 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-03 03:56:28,365 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-03 03:56:28,365 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-03 03:56:28,365 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-03 03:56:28,366 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-03 03:56:28,366 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-03 03:56:28,366 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 03:56:28,366 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 03:56:28,366 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2022-11-03 03:56:28,367 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2022-11-03 03:56:28,368 INFO L130 BoogieDeclarations]: Found specification of procedure aws_string_bytes [2022-11-03 03:56:28,368 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_string_bytes [2022-11-03 03:56:28,368 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-03 03:56:28,369 INFO L130 BoogieDeclarations]: Found specification of procedure hashlittle2 [2022-11-03 03:56:28,369 INFO L138 BoogieDeclarations]: Found implementation of procedure hashlittle2 [2022-11-03 03:56:28,369 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2022-11-03 03:56:28,369 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2022-11-03 03:56:28,369 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-03 03:56:28,369 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-03 03:56:28,370 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-03 03:56:28,370 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-03 03:56:28,370 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-03 03:56:28,370 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2022-11-03 03:56:28,371 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2022-11-03 03:56:28,371 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-03 03:56:28,809 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 03:56:28,811 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 03:56:31,410 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##5: assume !true; [2022-11-03 03:56:31,421 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 03:56:31,685 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 03:56:31,685 INFO L300 CfgBuilder]: Removed 5 assume(true) statements. [2022-11-03 03:56:31,689 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 03:56:31 BoogieIcfgContainer [2022-11-03 03:56:31,689 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 03:56:31,692 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 03:56:31,693 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 03:56:31,696 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 03:56:31,696 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 03:56:24" (1/3) ... [2022-11-03 03:56:31,697 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72938438 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 03:56:31, skipping insertion in model container [2022-11-03 03:56:31,703 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:56:27" (2/3) ... [2022-11-03 03:56:31,703 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72938438 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 03:56:31, skipping insertion in model container [2022-11-03 03:56:31,703 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 03:56:31" (3/3) ... [2022-11-03 03:56:31,705 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_hash_string_harness.i [2022-11-03 03:56:31,726 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 03:56:31,726 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-03 03:56:31,793 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 03:56:31,806 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;@26316d38, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 03:56:31,806 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-03 03:56:31,810 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) [2022-11-03 03:56:31,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-11-03 03:56:31,820 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:56:31,821 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] [2022-11-03 03:56:31,821 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:56:31,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:56:31,827 INFO L85 PathProgramCache]: Analyzing trace with hash -1922620881, now seen corresponding path program 1 times [2022-11-03 03:56:31,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:56:31,837 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1458995954] [2022-11-03 03:56:31,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:56:31,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:56:32,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:56:35,549 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-03 03:56:35,549 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:56:35,550 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1458995954] [2022-11-03 03:56:35,550 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1458995954] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 03:56:35,551 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [641038389] [2022-11-03 03:56:35,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:56:35,551 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 03:56:35,551 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb881c8e-2663-4aff-85d8-4e44c1bc419d/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 03:56:35,553 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb881c8e-2663-4aff-85d8-4e44c1bc419d/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 03:56:35,572 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb881c8e-2663-4aff-85d8-4e44c1bc419d/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-03 03:56:36,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:56:36,213 INFO L263 TraceCheckSpWp]: Trace formula consists of 2123 conjuncts, 146 conjunts are in the unsatisfiable core [2022-11-03 03:56:36,231 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:56:36,433 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-03 03:56:41,295 INFO L356 Elim1Store]: treesize reduction 21, result has 16.0 percent of original size [2022-11-03 03:56:41,295 INFO L390 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 56 treesize of output 43 [2022-11-03 03:56:42,097 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:56:42,101 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:56:42,102 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:56:42,202 INFO L356 Elim1Store]: treesize reduction 72, result has 40.5 percent of original size [2022-11-03 03:56:42,202 INFO L390 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 75 treesize of output 144 [2022-11-03 03:56:42,224 INFO L390 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 [2022-11-03 03:56:42,306 INFO L390 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 [2022-11-03 03:56:42,327 INFO L390 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 [2022-11-03 03:56:42,623 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:56:42,626 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:56:42,646 INFO L356 Elim1Store]: treesize reduction 13, result has 38.1 percent of original size [2022-11-03 03:56:42,646 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 03:56:42,686 INFO L390 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 9 treesize of output 7 [2022-11-03 03:56:42,688 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-11-03 03:56:44,146 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 12 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-03 03:56:44,147 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 03:56:47,654 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [641038389] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 03:56:47,654 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1387537762] [2022-11-03 03:56:47,683 INFO L159 IcfgInterpreter]: Started Sifa with 52 locations of interest [2022-11-03 03:56:47,684 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 03:56:47,688 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 03:56:47,695 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 03:56:47,696 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 03:56:53,616 INFO L390 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 8 treesize of output 7 [2022-11-03 03:56:53,622 INFO L390 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 [2022-11-03 03:56:53,740 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:56:53,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:56:53,748 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:56:53,749 INFO L390 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 [2022-11-03 03:56:53,771 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:56:53,774 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:56:53,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:56:53,780 INFO L390 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 [2022-11-03 03:56:53,810 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:56:53,813 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:56:53,820 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:56:53,821 INFO L390 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 [2022-11-03 03:56:53,841 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:56:53,845 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:56:53,849 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:56:53,853 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:56:53,854 INFO L390 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 [2022-11-03 03:56:55,684 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-11-03 03:56:59,851 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-11-03 03:57:02,348 INFO L197 IcfgInterpreter]: Interpreting procedure ensure_string_is_allocated_bounded_length with input of size 2428 for LOIs [2022-11-03 03:57:59,546 INFO L197 IcfgInterpreter]: Interpreting procedure nondet_uint64_t with input of size 2413 for LOIs [2022-11-03 03:58:01,805 INFO L197 IcfgInterpreter]: Interpreting procedure bounded_malloc with input of size 2437 for LOIs [2022-11-03 03:58:30,263 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 2479 for LOIs [2022-11-03 03:58:53,241 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 03:59:33,595 WARN L234 SmtUtils]: Spent 38.42s 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) [2022-11-03 04:00:14,256 WARN L234 SmtUtils]: Spent 38.50s 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) [2022-11-03 04:00:55,725 WARN L234 SmtUtils]: Spent 39.06s 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) [2022-11-03 04:03:25,325 WARN L234 SmtUtils]: Spent 1.95m 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) [2022-11-03 04:05:45,679 WARN L234 SmtUtils]: Spent 1.91m 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) [2022-11-03 04:07:09,268 WARN L234 SmtUtils]: Spent 1.35m 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) [2022-11-03 04:08:33,963 WARN L234 SmtUtils]: Spent 1.37m 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)