./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_hash_callback_string_eq_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version ae007674 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/aws-c-common/aws_hash_callback_string_eq_harness.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 617e08addfe2d13b261907959d3757079a581721356bb3e7b4090decaff2b168 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-ae00767 [2021-12-28 03:18:03,413 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-28 03:18:03,415 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-28 03:18:03,451 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-28 03:18:03,452 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-28 03:18:03,455 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-28 03:18:03,456 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-28 03:18:03,460 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-28 03:18:03,462 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-28 03:18:03,463 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-28 03:18:03,464 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-28 03:18:03,465 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-28 03:18:03,465 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-28 03:18:03,466 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-28 03:18:03,466 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-28 03:18:03,467 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-28 03:18:03,470 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-28 03:18:03,471 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-28 03:18:03,472 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-28 03:18:03,474 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-28 03:18:03,477 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-28 03:18:03,478 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-28 03:18:03,479 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-28 03:18:03,480 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-28 03:18:03,482 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-28 03:18:03,485 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-28 03:18:03,485 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-28 03:18:03,486 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-28 03:18:03,487 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-28 03:18:03,487 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-28 03:18:03,488 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-28 03:18:03,488 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-28 03:18:03,489 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-28 03:18:03,490 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-28 03:18:03,491 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-28 03:18:03,491 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-28 03:18:03,492 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-28 03:18:03,492 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-28 03:18:03,492 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-28 03:18:03,493 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-28 03:18:03,494 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-28 03:18:03,494 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-28 03:18:03,520 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-28 03:18:03,520 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-28 03:18:03,521 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-28 03:18:03,521 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-28 03:18:03,522 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-28 03:18:03,522 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-28 03:18:03,523 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-28 03:18:03,524 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-28 03:18:03,524 INFO L138 SettingsManager]: * Use SBE=true [2021-12-28 03:18:03,524 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-28 03:18:03,524 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-28 03:18:03,525 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-28 03:18:03,525 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-28 03:18:03,525 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-28 03:18:03,525 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-28 03:18:03,525 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-28 03:18:03,525 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-28 03:18:03,525 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-28 03:18:03,526 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-28 03:18:03,526 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-28 03:18:03,526 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-28 03:18:03,526 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-28 03:18:03,526 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-28 03:18:03,526 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-28 03:18:03,527 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-28 03:18:03,527 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-28 03:18:03,527 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-28 03:18:03,527 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-28 03:18:03,527 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-28 03:18:03,527 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-28 03:18:03,527 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:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 617e08addfe2d13b261907959d3757079a581721356bb3e7b4090decaff2b168 [2021-12-28 03:18:03,777 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-28 03:18:03,792 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-28 03:18:03,794 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-28 03:18:03,795 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-28 03:18:03,796 INFO L275 PluginConnector]: CDTParser initialized [2021-12-28 03:18:03,797 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_hash_callback_string_eq_harness.i [2021-12-28 03:18:03,857 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a596315c6/7c29f478203f40d59c10bcc5ade410a1/FLAGd6dbb2358 [2021-12-28 03:18:04,498 INFO L306 CDTParser]: Found 1 translation units. [2021-12-28 03:18:04,499 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_hash_callback_string_eq_harness.i [2021-12-28 03:18:04,523 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a596315c6/7c29f478203f40d59c10bcc5ade410a1/FLAGd6dbb2358 [2021-12-28 03:18:04,897 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a596315c6/7c29f478203f40d59c10bcc5ade410a1 [2021-12-28 03:18:04,900 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-28 03:18:04,901 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-28 03:18:04,905 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-28 03:18:04,905 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-28 03:18:04,907 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-28 03:18:04,907 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 03:18:04" (1/1) ... [2021-12-28 03:18:04,914 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@69ed4c0c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:18:04, skipping insertion in model container [2021-12-28 03:18:04,914 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 03:18:04" (1/1) ... [2021-12-28 03:18:04,925 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-28 03:18:05,076 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-28 03:18:05,382 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_hash_callback_string_eq_harness.i[4501,4514] [2021-12-28 03:18:05,387 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_hash_callback_string_eq_harness.i[4561,4574] [2021-12-28 03:18:06,327 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-28 03:18:06,329 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-28 03:18:06,330 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-28 03:18:06,330 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-28 03:18:06,332 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-28 03:18:06,340 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-28 03:18:06,346 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-28 03:18:06,348 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-28 03:18:06,349 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-28 03:18:06,675 WARN L610 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-12-28 03:18:06,675 WARN L610 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-12-28 03:18:06,676 WARN L610 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-12-28 03:18:06,677 WARN L610 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-12-28 03:18:06,677 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-12-28 03:18:06,678 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-12-28 03:18:06,678 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-12-28 03:18:06,679 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-12-28 03:18:06,679 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-12-28 03:18:06,679 WARN L610 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-12-28 03:18:06,799 WARN L610 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-12-28 03:18:06,854 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-28 03:18:06,855 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-28 03:18:07,052 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-28 03:18:07,053 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-28 03:18:07,065 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-28 03:18:07,067 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-28 03:18:07,074 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-28 03:18:07,075 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-28 03:18:07,090 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-28 03:18:07,092 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-28 03:18:07,092 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-28 03:18:07,093 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-28 03:18:07,093 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-28 03:18:07,094 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-28 03:18:07,094 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-28 03:18:07,149 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-28 03:18:07,190 INFO L203 MainTranslator]: Completed pre-run [2021-12-28 03:18:07,208 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_hash_callback_string_eq_harness.i[4501,4514] [2021-12-28 03:18:07,209 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_hash_callback_string_eq_harness.i[4561,4574] [2021-12-28 03:18:07,243 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-28 03:18:07,244 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-28 03:18:07,244 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-28 03:18:07,244 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-28 03:18:07,245 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-28 03:18:07,248 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-28 03:18:07,248 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-28 03:18:07,249 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-28 03:18:07,249 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-28 03:18:07,274 WARN L610 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-12-28 03:18:07,274 WARN L610 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-12-28 03:18:07,275 WARN L610 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-12-28 03:18:07,275 WARN L610 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-12-28 03:18:07,276 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-12-28 03:18:07,276 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-12-28 03:18:07,276 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-12-28 03:18:07,277 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-12-28 03:18:07,277 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-12-28 03:18:07,277 WARN L610 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-12-28 03:18:07,301 WARN L610 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-12-28 03:18:07,337 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-28 03:18:07,339 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-28 03:18:07,397 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-28 03:18:07,398 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-28 03:18:07,406 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-28 03:18:07,406 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-28 03:18:07,409 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-28 03:18:07,410 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-28 03:18:07,414 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-28 03:18:07,415 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-28 03:18:07,415 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-28 03:18:07,415 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-28 03:18:07,416 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-28 03:18:07,416 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-28 03:18:07,416 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-28 03:18:07,441 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-28 03:18:07,709 INFO L208 MainTranslator]: Completed translation [2021-12-28 03:18:07,710 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:18:07 WrapperNode [2021-12-28 03:18:07,710 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-28 03:18:07,711 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-28 03:18:07,711 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-28 03:18:07,711 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-28 03:18:07,715 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:18:07" (1/1) ... [2021-12-28 03:18:07,800 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:18:07" (1/1) ... [2021-12-28 03:18:07,855 INFO L137 Inliner]: procedures = 768, calls = 3257, calls flagged for inlining = 77, calls inlined = 7, statements flattened = 399 [2021-12-28 03:18:07,856 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-28 03:18:07,856 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-28 03:18:07,856 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-28 03:18:07,857 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-28 03:18:07,862 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:18:07" (1/1) ... [2021-12-28 03:18:07,862 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:18:07" (1/1) ... [2021-12-28 03:18:07,871 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:18:07" (1/1) ... [2021-12-28 03:18:07,871 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:18:07" (1/1) ... [2021-12-28 03:18:07,898 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:18:07" (1/1) ... [2021-12-28 03:18:07,910 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:18:07" (1/1) ... [2021-12-28 03:18:07,921 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:18:07" (1/1) ... [2021-12-28 03:18:07,925 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-28 03:18:07,928 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-28 03:18:07,928 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-28 03:18:07,929 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-28 03:18:07,929 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:18:07" (1/1) ... [2021-12-28 03:18:07,934 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-28 03:18:07,941 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 03:18:07,952 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-28 03:18:07,990 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-28 03:18:08,055 INFO L130 BoogieDeclarations]: Found specification of procedure aws_string_is_valid [2021-12-28 03:18:08,055 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_string_is_valid [2021-12-28 03:18:08,055 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_string_is_allocated_bounded_length [2021-12-28 03:18:08,055 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_string_is_allocated_bounded_length [2021-12-28 03:18:08,055 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-12-28 03:18:08,056 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2021-12-28 03:18:08,056 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2021-12-28 03:18:08,056 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-28 03:18:08,056 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-12-28 03:18:08,056 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-12-28 03:18:08,056 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-28 03:18:08,056 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-28 03:18:08,056 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-28 03:18:08,056 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-28 03:18:08,057 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-28 03:18:08,057 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2021-12-28 03:18:08,057 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2021-12-28 03:18:08,057 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-28 03:18:08,057 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-28 03:18:08,057 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_eq [2021-12-28 03:18:08,057 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_eq [2021-12-28 03:18:08,057 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-28 03:18:08,057 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2021-12-28 03:18:08,058 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2021-12-28 03:18:08,058 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2021-12-28 03:18:08,058 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2021-12-28 03:18:08,058 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-28 03:18:08,058 INFO L130 BoogieDeclarations]: Found specification of procedure aws_c_string_is_valid [2021-12-28 03:18:08,058 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_c_string_is_valid [2021-12-28 03:18:08,058 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-28 03:18:08,274 INFO L234 CfgBuilder]: Building ICFG [2021-12-28 03:18:08,276 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-28 03:18:08,541 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##21: assume !true; [2021-12-28 03:18:08,550 INFO L275 CfgBuilder]: Performing block encoding [2021-12-28 03:18:08,555 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-28 03:18:08,555 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2021-12-28 03:18:08,556 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 03:18:08 BoogieIcfgContainer [2021-12-28 03:18:08,556 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-28 03:18:08,563 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-28 03:18:08,563 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-28 03:18:08,565 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-28 03:18:08,565 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.12 03:18:04" (1/3) ... [2021-12-28 03:18:08,566 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4cffe5fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.12 03:18:08, skipping insertion in model container [2021-12-28 03:18:08,566 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:18:07" (2/3) ... [2021-12-28 03:18:08,566 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4cffe5fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.12 03:18:08, skipping insertion in model container [2021-12-28 03:18:08,566 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 03:18:08" (3/3) ... [2021-12-28 03:18:08,567 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_hash_callback_string_eq_harness.i [2021-12-28 03:18:08,570 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-28 03:18:08,571 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-28 03:18:08,600 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-28 03:18:08,604 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-28 03:18:08,604 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-28 03:18:08,616 INFO L276 IsEmpty]: Start isEmpty. Operand has 110 states, 71 states have (on average 1.2253521126760563) internal successors, (87), 71 states have internal predecessors, (87), 28 states have call successors, (28), 10 states have call predecessors, (28), 10 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2021-12-28 03:18:08,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2021-12-28 03:18:08,622 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 03:18:08,623 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 03:18:08,623 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 03:18:08,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 03:18:08,627 INFO L85 PathProgramCache]: Analyzing trace with hash -1707101443, now seen corresponding path program 1 times [2021-12-28 03:18:08,632 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 03:18:08,633 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1396255450] [2021-12-28 03:18:08,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 03:18:08,634 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 03:18:08,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:18:08,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-28 03:18:08,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:18:08,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 03:18:08,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:18:08,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 03:18:08,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:18:08,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-28 03:18:08,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:18:08,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 03:18:08,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:18:08,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-28 03:18:08,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:18:08,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-28 03:18:08,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:18:08,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-12-28 03:18:08,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:18:09,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-28 03:18:09,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:18:09,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-12-28 03:18:09,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:18:09,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-28 03:18:09,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:18:09,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-12-28 03:18:09,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:18:09,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-28 03:18:09,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:18:09,080 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2021-12-28 03:18:09,081 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 03:18:09,081 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1396255450] [2021-12-28 03:18:09,081 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1396255450] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 03:18:09,082 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 03:18:09,082 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-28 03:18:09,083 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [255464836] [2021-12-28 03:18:09,083 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 03:18:09,087 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-28 03:18:09,087 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 03:18:09,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-28 03:18:09,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-28 03:18:09,113 INFO L87 Difference]: Start difference. First operand has 110 states, 71 states have (on average 1.2253521126760563) internal successors, (87), 71 states have internal predecessors, (87), 28 states have call successors, (28), 10 states have call predecessors, (28), 10 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) Second operand has 4 states, 4 states have (on average 10.75) internal successors, (43), 2 states have internal predecessors, (43), 2 states have call successors, (14), 4 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-12-28 03:18:09,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 03:18:09,268 INFO L93 Difference]: Finished difference Result 217 states and 299 transitions. [2021-12-28 03:18:09,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-28 03:18:09,270 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 2 states have internal predecessors, (43), 2 states have call successors, (14), 4 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 93 [2021-12-28 03:18:09,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 03:18:09,275 INFO L225 Difference]: With dead ends: 217 [2021-12-28 03:18:09,276 INFO L226 Difference]: Without dead ends: 104 [2021-12-28 03:18:09,278 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-28 03:18:09,280 INFO L933 BasicCegarLoop]: 132 mSDtfsCounter, 68 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 182 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-28 03:18:09,281 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [73 Valid, 182 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-28 03:18:09,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2021-12-28 03:18:09,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 104. [2021-12-28 03:18:09,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 65 states have (on average 1.1846153846153846) internal successors, (77), 66 states have internal predecessors, (77), 28 states have call successors, (28), 10 states have call predecessors, (28), 10 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2021-12-28 03:18:09,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 132 transitions. [2021-12-28 03:18:09,310 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 132 transitions. Word has length 93 [2021-12-28 03:18:09,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 03:18:09,312 INFO L470 AbstractCegarLoop]: Abstraction has 104 states and 132 transitions. [2021-12-28 03:18:09,312 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 2 states have internal predecessors, (43), 2 states have call successors, (14), 4 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-12-28 03:18:09,312 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 132 transitions. [2021-12-28 03:18:09,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-12-28 03:18:09,314 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 03:18:09,315 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 03:18:09,315 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-28 03:18:09,315 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 03:18:09,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 03:18:09,316 INFO L85 PathProgramCache]: Analyzing trace with hash 566240687, now seen corresponding path program 1 times [2021-12-28 03:18:09,316 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 03:18:09,316 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1399612151] [2021-12-28 03:18:09,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 03:18:09,316 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 03:18:09,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:18:09,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-28 03:18:09,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:18:09,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 03:18:09,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:18:09,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 03:18:09,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:18:09,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-28 03:18:09,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:18:09,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 03:18:09,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:18:09,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-28 03:18:09,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:18:09,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-28 03:18:09,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:18:09,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-12-28 03:18:09,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:18:09,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-28 03:18:09,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:18:09,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-12-28 03:18:09,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:18:09,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-28 03:18:09,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:18:09,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-12-28 03:18:09,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:18:09,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-28 03:18:09,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:18:09,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-12-28 03:18:09,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:18:09,892 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2021-12-28 03:18:09,892 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 03:18:09,892 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1399612151] [2021-12-28 03:18:09,892 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1399612151] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-28 03:18:09,893 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1690211354] [2021-12-28 03:18:09,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 03:18:09,893 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-28 03:18:09,893 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 03:18:09,905 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-28 03:18:09,906 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-28 03:18:10,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:18:10,091 INFO L263 TraceCheckSpWp]: Trace formula consists of 907 conjuncts, 27 conjunts are in the unsatisfiable core [2021-12-28 03:18:10,097 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-28 03:18:10,321 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2021-12-28 03:18:10,322 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-28 03:18:10,322 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1690211354] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 03:18:10,322 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-28 03:18:10,322 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [19] total 24 [2021-12-28 03:18:10,323 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [934140244] [2021-12-28 03:18:10,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 03:18:10,324 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-12-28 03:18:10,324 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 03:18:10,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-12-28 03:18:10,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=502, Unknown=0, NotChecked=0, Total=552 [2021-12-28 03:18:10,325 INFO L87 Difference]: Start difference. First operand 104 states and 132 transitions. Second operand has 13 states, 13 states have (on average 3.6153846153846154) internal successors, (47), 11 states have internal predecessors, (47), 6 states have call successors, (15), 2 states have call predecessors, (15), 4 states have return successors, (14), 8 states have call predecessors, (14), 6 states have call successors, (14) [2021-12-28 03:18:10,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 03:18:10,566 INFO L93 Difference]: Finished difference Result 192 states and 252 transitions. [2021-12-28 03:18:10,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-12-28 03:18:10,567 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.6153846153846154) internal successors, (47), 11 states have internal predecessors, (47), 6 states have call successors, (15), 2 states have call predecessors, (15), 4 states have return successors, (14), 8 states have call predecessors, (14), 6 states have call successors, (14) Word has length 96 [2021-12-28 03:18:10,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 03:18:10,569 INFO L225 Difference]: With dead ends: 192 [2021-12-28 03:18:10,569 INFO L226 Difference]: Without dead ends: 144 [2021-12-28 03:18:10,570 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=87, Invalid=843, Unknown=0, NotChecked=0, Total=930 [2021-12-28 03:18:10,571 INFO L933 BasicCegarLoop]: 133 mSDtfsCounter, 113 mSDsluCounter, 1364 mSDsCounter, 0 mSdLazyCounter, 163 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 1497 SdHoareTripleChecker+Invalid, 207 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-28 03:18:10,571 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [130 Valid, 1497 Invalid, 207 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 163 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-28 03:18:10,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2021-12-28 03:18:10,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 117. [2021-12-28 03:18:10,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117 states, 72 states have (on average 1.1805555555555556) internal successors, (85), 73 states have internal predecessors, (85), 34 states have call successors, (34), 10 states have call predecessors, (34), 10 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) [2021-12-28 03:18:10,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 152 transitions. [2021-12-28 03:18:10,597 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 152 transitions. Word has length 96 [2021-12-28 03:18:10,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 03:18:10,597 INFO L470 AbstractCegarLoop]: Abstraction has 117 states and 152 transitions. [2021-12-28 03:18:10,597 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.6153846153846154) internal successors, (47), 11 states have internal predecessors, (47), 6 states have call successors, (15), 2 states have call predecessors, (15), 4 states have return successors, (14), 8 states have call predecessors, (14), 6 states have call successors, (14) [2021-12-28 03:18:10,598 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 152 transitions. [2021-12-28 03:18:10,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-12-28 03:18:10,599 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 03:18:10,599 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 03:18:10,621 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-12-28 03:18:10,800 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-28 03:18:10,800 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 03:18:10,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 03:18:10,801 INFO L85 PathProgramCache]: Analyzing trace with hash 18133626, now seen corresponding path program 1 times [2021-12-28 03:18:10,801 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 03:18:10,801 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1170665971] [2021-12-28 03:18:10,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 03:18:10,801 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 03:18:10,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:18:10,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-28 03:18:10,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:18:11,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 03:18:11,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:18:11,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 03:18:11,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:18:11,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-28 03:18:11,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:18:11,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 03:18:11,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:18:11,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-28 03:18:11,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:18:11,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-28 03:18:11,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:18:11,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-12-28 03:18:11,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:18:11,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-28 03:18:11,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:18:11,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-12-28 03:18:11,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:18:11,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-28 03:18:11,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:18:11,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-12-28 03:18:11,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:18:11,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-28 03:18:11,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:18:11,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-12-28 03:18:11,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:18:11,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-12-28 03:18:11,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:18:11,354 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2021-12-28 03:18:11,354 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 03:18:11,354 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1170665971] [2021-12-28 03:18:11,354 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1170665971] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-28 03:18:11,355 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [830716335] [2021-12-28 03:18:11,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 03:18:11,355 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-28 03:18:11,355 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 03:18:11,356 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-28 03:18:11,421 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-12-28 03:18:11,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:18:11,587 INFO L263 TraceCheckSpWp]: Trace formula consists of 935 conjuncts, 29 conjunts are in the unsatisfiable core [2021-12-28 03:18:11,599 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-28 03:18:11,966 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2021-12-28 03:18:11,966 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-28 03:18:11,967 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [830716335] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 03:18:11,967 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-28 03:18:11,967 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [17] total 26 [2021-12-28 03:18:11,967 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1853155045] [2021-12-28 03:18:11,967 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 03:18:11,969 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-12-28 03:18:11,970 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 03:18:11,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-12-28 03:18:11,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=595, Unknown=0, NotChecked=0, Total=650 [2021-12-28 03:18:11,971 INFO L87 Difference]: Start difference. First operand 117 states and 152 transitions. Second operand has 13 states, 13 states have (on average 3.4615384615384617) internal successors, (45), 11 states have internal predecessors, (45), 6 states have call successors, (16), 2 states have call predecessors, (16), 4 states have return successors, (15), 8 states have call predecessors, (15), 6 states have call successors, (15) [2021-12-28 03:18:12,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 03:18:12,222 INFO L93 Difference]: Finished difference Result 209 states and 275 transitions. [2021-12-28 03:18:12,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-12-28 03:18:12,223 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.4615384615384617) internal successors, (45), 11 states have internal predecessors, (45), 6 states have call successors, (16), 2 states have call predecessors, (16), 4 states have return successors, (15), 8 states have call predecessors, (15), 6 states have call successors, (15) Word has length 105 [2021-12-28 03:18:12,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 03:18:12,224 INFO L225 Difference]: With dead ends: 209 [2021-12-28 03:18:12,224 INFO L226 Difference]: Without dead ends: 174 [2021-12-28 03:18:12,235 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=87, Invalid=905, Unknown=0, NotChecked=0, Total=992 [2021-12-28 03:18:12,236 INFO L933 BasicCegarLoop]: 144 mSDtfsCounter, 151 mSDsluCounter, 1453 mSDsCounter, 0 mSdLazyCounter, 165 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 169 SdHoareTripleChecker+Valid, 1597 SdHoareTripleChecker+Invalid, 228 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-28 03:18:12,236 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [169 Valid, 1597 Invalid, 228 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 165 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-28 03:18:12,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2021-12-28 03:18:12,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 125. [2021-12-28 03:18:12,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125 states, 77 states have (on average 1.1688311688311688) internal successors, (90), 78 states have internal predecessors, (90), 37 states have call successors, (37), 10 states have call predecessors, (37), 10 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2021-12-28 03:18:12,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 163 transitions. [2021-12-28 03:18:12,247 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 163 transitions. Word has length 105 [2021-12-28 03:18:12,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 03:18:12,247 INFO L470 AbstractCegarLoop]: Abstraction has 125 states and 163 transitions. [2021-12-28 03:18:12,247 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.4615384615384617) internal successors, (45), 11 states have internal predecessors, (45), 6 states have call successors, (16), 2 states have call predecessors, (16), 4 states have return successors, (15), 8 states have call predecessors, (15), 6 states have call successors, (15) [2021-12-28 03:18:12,248 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 163 transitions. [2021-12-28 03:18:12,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2021-12-28 03:18:12,249 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 03:18:12,249 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 03:18:12,269 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-12-28 03:18:12,469 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2021-12-28 03:18:12,469 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 03:18:12,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 03:18:12,470 INFO L85 PathProgramCache]: Analyzing trace with hash 864229612, now seen corresponding path program 1 times [2021-12-28 03:18:12,470 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 03:18:12,470 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1174199662] [2021-12-28 03:18:12,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 03:18:12,470 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 03:18:12,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:18:12,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-28 03:18:12,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:18:12,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 03:18:12,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:18:12,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 03:18:12,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:18:12,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-28 03:18:12,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:18:12,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 03:18:12,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:18:12,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-28 03:18:12,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:18:12,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-28 03:18:12,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:18:12,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-12-28 03:18:12,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:18:12,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-28 03:18:12,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:18:12,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-12-28 03:18:12,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:18:12,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-28 03:18:12,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:18:12,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-12-28 03:18:12,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:18:12,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-28 03:18:12,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:18:12,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-12-28 03:18:12,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:18:12,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-28 03:18:12,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:18:12,667 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2021-12-28 03:18:12,667 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 03:18:12,667 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1174199662] [2021-12-28 03:18:12,667 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1174199662] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 03:18:12,667 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 03:18:12,667 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-28 03:18:12,667 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [586154726] [2021-12-28 03:18:12,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 03:18:12,668 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-28 03:18:12,668 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 03:18:12,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-28 03:18:12,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-12-28 03:18:12,669 INFO L87 Difference]: Start difference. First operand 125 states and 163 transitions. Second operand has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 5 states have internal predecessors, (46), 4 states have call successors, (16), 4 states have call predecessors, (16), 1 states have return successors, (15), 4 states have call predecessors, (15), 4 states have call successors, (15) [2021-12-28 03:18:12,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 03:18:12,943 INFO L93 Difference]: Finished difference Result 213 states and 279 transitions. [2021-12-28 03:18:12,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-28 03:18:12,944 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 5 states have internal predecessors, (46), 4 states have call successors, (16), 4 states have call predecessors, (16), 1 states have return successors, (15), 4 states have call predecessors, (15), 4 states have call successors, (15) Word has length 106 [2021-12-28 03:18:12,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 03:18:12,945 INFO L225 Difference]: With dead ends: 213 [2021-12-28 03:18:12,945 INFO L226 Difference]: Without dead ends: 160 [2021-12-28 03:18:12,945 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-12-28 03:18:12,946 INFO L933 BasicCegarLoop]: 142 mSDtfsCounter, 82 mSDsluCounter, 277 mSDsCounter, 0 mSdLazyCounter, 341 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 419 SdHoareTripleChecker+Invalid, 411 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 341 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-28 03:18:12,946 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [94 Valid, 419 Invalid, 411 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 341 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-28 03:18:12,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2021-12-28 03:18:12,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 122. [2021-12-28 03:18:12,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122 states, 75 states have (on average 1.16) internal successors, (87), 76 states have internal predecessors, (87), 36 states have call successors, (36), 10 states have call predecessors, (36), 10 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) [2021-12-28 03:18:12,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 158 transitions. [2021-12-28 03:18:12,955 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 158 transitions. Word has length 106 [2021-12-28 03:18:12,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 03:18:12,955 INFO L470 AbstractCegarLoop]: Abstraction has 122 states and 158 transitions. [2021-12-28 03:18:12,955 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 5 states have internal predecessors, (46), 4 states have call successors, (16), 4 states have call predecessors, (16), 1 states have return successors, (15), 4 states have call predecessors, (15), 4 states have call successors, (15) [2021-12-28 03:18:12,955 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 158 transitions. [2021-12-28 03:18:12,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2021-12-28 03:18:12,971 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 03:18:12,971 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 03:18:12,971 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-28 03:18:12,972 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 03:18:12,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 03:18:12,972 INFO L85 PathProgramCache]: Analyzing trace with hash -704073469, now seen corresponding path program 1 times [2021-12-28 03:18:12,972 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 03:18:12,972 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [98677116] [2021-12-28 03:18:12,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 03:18:12,973 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 03:18:13,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:18:13,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-28 03:18:13,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:18:13,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 03:18:13,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:18:13,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 03:18:13,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:18:13,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-28 03:18:13,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:18:13,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 03:18:13,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:18:13,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-28 03:18:13,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:18:13,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-28 03:18:13,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:18:13,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-12-28 03:18:13,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:18:13,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 03:18:13,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:18:13,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 03:18:13,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:18:13,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-28 03:18:13,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:18:13,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 03:18:13,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:18:13,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-28 03:18:13,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:18:13,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-12-28 03:18:13,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:18:13,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-12-28 03:18:13,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:18:13,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2021-12-28 03:18:13,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:18:13,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-28 03:18:13,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:18:13,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-28 03:18:13,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:18:13,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2021-12-28 03:18:13,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:18:13,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-12-28 03:18:13,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:18:13,411 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 28 proven. 24 refuted. 0 times theorem prover too weak. 97 trivial. 0 not checked. [2021-12-28 03:18:13,411 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 03:18:13,412 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [98677116] [2021-12-28 03:18:13,412 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [98677116] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-28 03:18:13,412 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1348012736] [2021-12-28 03:18:13,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 03:18:13,412 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-28 03:18:13,412 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 03:18:13,428 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-28 03:18:13,429 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-12-28 03:18:13,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:18:13,654 INFO L263 TraceCheckSpWp]: Trace formula consists of 1054 conjuncts, 23 conjunts are in the unsatisfiable core [2021-12-28 03:18:13,656 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-28 03:18:13,946 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 48 proven. 9 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2021-12-28 03:18:13,947 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-28 03:18:14,164 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 140 trivial. 0 not checked. [2021-12-28 03:18:14,164 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1348012736] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-28 03:18:14,164 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-28 03:18:14,164 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 11, 11] total 27 [2021-12-28 03:18:14,164 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1541470810] [2021-12-28 03:18:14,165 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-28 03:18:14,165 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2021-12-28 03:18:14,165 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 03:18:14,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-12-28 03:18:14,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=646, Unknown=0, NotChecked=0, Total=702 [2021-12-28 03:18:14,166 INFO L87 Difference]: Start difference. First operand 122 states and 158 transitions. Second operand has 27 states, 25 states have (on average 3.28) internal successors, (82), 20 states have internal predecessors, (82), 11 states have call successors, (34), 4 states have call predecessors, (34), 7 states have return successors, (33), 14 states have call predecessors, (33), 11 states have call successors, (33) [2021-12-28 03:18:14,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 03:18:14,750 INFO L93 Difference]: Finished difference Result 155 states and 192 transitions. [2021-12-28 03:18:14,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-28 03:18:14,751 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 25 states have (on average 3.28) internal successors, (82), 20 states have internal predecessors, (82), 11 states have call successors, (34), 4 states have call predecessors, (34), 7 states have return successors, (33), 14 states have call predecessors, (33), 11 states have call successors, (33) Word has length 130 [2021-12-28 03:18:14,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 03:18:14,751 INFO L225 Difference]: With dead ends: 155 [2021-12-28 03:18:14,751 INFO L226 Difference]: Without dead ends: 0 [2021-12-28 03:18:14,752 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 325 GetRequests, 288 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 125 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=142, Invalid=1340, Unknown=0, NotChecked=0, Total=1482 [2021-12-28 03:18:14,753 INFO L933 BasicCegarLoop]: 27 mSDtfsCounter, 58 mSDsluCounter, 284 mSDsCounter, 0 mSdLazyCounter, 451 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 311 SdHoareTripleChecker+Invalid, 488 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 451 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-28 03:18:14,753 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [58 Valid, 311 Invalid, 488 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 451 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-28 03:18:14,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-12-28 03:18:14,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-12-28 03:18:14,754 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) [2021-12-28 03:18:14,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-12-28 03:18:14,754 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 130 [2021-12-28 03:18:14,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 03:18:14,754 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-28 03:18:14,755 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 25 states have (on average 3.28) internal successors, (82), 20 states have internal predecessors, (82), 11 states have call successors, (34), 4 states have call predecessors, (34), 7 states have return successors, (33), 14 states have call predecessors, (33), 11 states have call successors, (33) [2021-12-28 03:18:14,755 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-12-28 03:18:14,755 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-12-28 03:18:14,756 INFO L764 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-12-28 03:18:14,777 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-12-28 03:18:14,971 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-28 03:18:14,973 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-12-28 03:18:15,088 INFO L854 garLoopResultBuilder]: At program point L6814(line 6814) the Hoare annotation is: (and (= |old(#length)| |#length|) (= |old(#memory_real)| |#memory_real|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (or (= |ensure_string_is_allocated_bounded_length_#in~max_size#1| |ensure_string_is_allocated_bounded_length_~max_size#1|) (= (+ |ensure_string_is_allocated_bounded_length_~max_size#1| (- 96)) 0)) (= |old(#valid)| |#valid|)) [2021-12-28 03:18:15,088 INFO L858 garLoopResultBuilder]: For program point L6815-1(line 6815) no Hoare annotation was computed. [2021-12-28 03:18:15,088 INFO L854 garLoopResultBuilder]: At program point L6815(line 6815) the Hoare annotation is: (and (= |old(#length)| |#length|) (= |old(#memory_real)| |#memory_real|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (or (= |ensure_string_is_allocated_bounded_length_#in~max_size#1| |ensure_string_is_allocated_bounded_length_~max_size#1|) (= (+ |ensure_string_is_allocated_bounded_length_~max_size#1| (- 96)) 0)) (= |old(#valid)| |#valid|)) [2021-12-28 03:18:15,088 INFO L858 garLoopResultBuilder]: For program point ensure_string_is_allocated_bounded_lengthEXIT(lines 6813 6817) no Hoare annotation was computed. [2021-12-28 03:18:15,089 INFO L858 garLoopResultBuilder]: For program point L6814-1(line 6814) no Hoare annotation was computed. [2021-12-28 03:18:15,089 INFO L854 garLoopResultBuilder]: At program point ensure_string_is_allocated_bounded_lengthENTRY(lines 6813 6817) the Hoare annotation is: (and (= |old(#length)| |#length|) (= |old(#memory_real)| |#memory_real|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= |old(#valid)| |#valid|)) [2021-12-28 03:18:15,089 INFO L854 garLoopResultBuilder]: At program point L6828(lines 6819 6829) the Hoare annotation is: (and (not (= |ensure_string_is_allocated_bounded_length_ensure_string_is_allocated_~str~0#1.base| 0)) (not (= |ensure_string_is_allocated_bounded_length_#in~max_size#1| 96)) (not (= |ensure_string_is_allocated_bounded_length_ensure_string_is_allocated_#res#1.base| 0)) (or (= |ensure_string_is_allocated_bounded_length_#in~max_size#1| |ensure_string_is_allocated_bounded_length_~max_size#1|) (= (+ |ensure_string_is_allocated_bounded_length_~max_size#1| (- 96)) 0))) [2021-12-28 03:18:15,089 INFO L858 garLoopResultBuilder]: For program point L6823-1(lines 6823 6824) no Hoare annotation was computed. [2021-12-28 03:18:15,089 INFO L854 garLoopResultBuilder]: At program point L6823(line 6823) the Hoare annotation is: (and (not (= |ensure_string_is_allocated_bounded_length_ensure_string_is_allocated_~str~0#1.base| 0)) (not (= |ensure_string_is_allocated_bounded_length_#in~max_size#1| 96)) (or (= |ensure_string_is_allocated_bounded_length_#in~max_size#1| |ensure_string_is_allocated_bounded_length_~max_size#1|) (= (+ |ensure_string_is_allocated_bounded_length_~max_size#1| (- 96)) 0))) [2021-12-28 03:18:15,089 INFO L858 garLoopResultBuilder]: For program point L6823-5(lines 6823 6824) no Hoare annotation was computed. [2021-12-28 03:18:15,089 INFO L858 garLoopResultBuilder]: For program point L6820-1(line 6820) no Hoare annotation was computed. [2021-12-28 03:18:15,090 INFO L854 garLoopResultBuilder]: At program point L6820(line 6820) the Hoare annotation is: (let ((.cse0 (not (= |ensure_string_is_allocated_bounded_length_#in~max_size#1| 96)))) (and (= |old(#length)| |#length|) (or .cse0 (<= 0 (+ (* 18446744073709551616 (div (+ (* (- 1) |ensure_string_is_allocated_bounded_length_ensure_string_is_allocated_~len#1|) 95) 18446744073709551616)) |ensure_string_is_allocated_bounded_length_ensure_string_is_allocated_~len#1|))) (= |old(#memory_real)| |#memory_real|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (or (= |ensure_string_is_allocated_bounded_length_#in~max_size#1| |ensure_string_is_allocated_bounded_length_~max_size#1|) (= (+ |ensure_string_is_allocated_bounded_length_~max_size#1| (- 96)) 0)) (= |old(#valid)| |#valid|) (or .cse0 (let ((.cse1 (* 18446744073709551616 (div |ensure_string_is_allocated_bounded_length_~len~1#1| 18446744073709551616)))) (<= .cse1 (+ |ensure_string_is_allocated_bounded_length_~len~1#1| (* 18446744073709551616 (div (+ .cse1 95 (* (- 1) |ensure_string_is_allocated_bounded_length_~len~1#1|)) 18446744073709551616)))))))) [2021-12-28 03:18:15,090 INFO L858 garLoopResultBuilder]: For program point L6823-3(line 6823) no Hoare annotation was computed. [2021-12-28 03:18:15,090 INFO L858 garLoopResultBuilder]: For program point ensure_string_is_allocated_bounded_lengthFINAL(lines 6813 6817) no Hoare annotation was computed. [2021-12-28 03:18:15,090 INFO L854 garLoopResultBuilder]: At program point L6823-2(line 6823) the Hoare annotation is: (and (not (= |ensure_string_is_allocated_bounded_length_ensure_string_is_allocated_~str~0#1.base| 0)) (not (= |ensure_string_is_allocated_bounded_length_#in~max_size#1| 96)) (or (= |ensure_string_is_allocated_bounded_length_#in~max_size#1| |ensure_string_is_allocated_bounded_length_~max_size#1|) (= (+ |ensure_string_is_allocated_bounded_length_~max_size#1| (- 96)) 0))) [2021-12-28 03:18:15,090 INFO L858 garLoopResultBuilder]: For program point L6896-1(lines 6896 6898) no Hoare annotation was computed. [2021-12-28 03:18:15,090 INFO L854 garLoopResultBuilder]: At program point L6896(lines 6896 6898) the Hoare annotation is: (and (= |bounded_malloc_#in~size| bounded_malloc_~size) (= |old(#length)| |#length|) (= |old(#valid)| |#valid|)) [2021-12-28 03:18:15,090 INFO L854 garLoopResultBuilder]: At program point bounded_mallocENTRY(lines 6895 6900) the Hoare annotation is: (and (= |old(#length)| |#length|) (= |old(#valid)| |#valid|)) [2021-12-28 03:18:15,090 INFO L858 garLoopResultBuilder]: For program point bounded_mallocFINAL(lines 6895 6900) no Hoare annotation was computed. [2021-12-28 03:18:15,091 INFO L858 garLoopResultBuilder]: For program point bounded_mallocEXIT(lines 6895 6900) no Hoare annotation was computed. [2021-12-28 03:18:15,091 INFO L861 garLoopResultBuilder]: At program point aws_array_eqENTRY(lines 7686 7706) the Hoare annotation is: true [2021-12-28 03:18:15,091 INFO L858 garLoopResultBuilder]: For program point L7690(lines 7687 7706) no Hoare annotation was computed. [2021-12-28 03:18:15,091 INFO L858 garLoopResultBuilder]: For program point aws_array_eqEXIT(lines 7686 7706) no Hoare annotation was computed. [2021-12-28 03:18:15,091 INFO L861 garLoopResultBuilder]: At program point L7688-1(line 7688) the Hoare annotation is: true [2021-12-28 03:18:15,091 INFO L861 garLoopResultBuilder]: At program point L7688(line 7688) the Hoare annotation is: true [2021-12-28 03:18:15,091 INFO L858 garLoopResultBuilder]: For program point aws_array_eqFINAL(lines 7686 7706) no Hoare annotation was computed. [2021-12-28 03:18:15,091 INFO L858 garLoopResultBuilder]: For program point L7699(lines 7699 7703) no Hoare annotation was computed. [2021-12-28 03:18:15,091 INFO L858 garLoopResultBuilder]: For program point nondet_boolFINAL(line 261) no Hoare annotation was computed. [2021-12-28 03:18:15,092 INFO L858 garLoopResultBuilder]: For program point nondet_boolEXIT(line 261) no Hoare annotation was computed. [2021-12-28 03:18:15,092 INFO L861 garLoopResultBuilder]: At program point nondet_boolENTRY(line 261) the Hoare annotation is: true [2021-12-28 03:18:15,092 INFO L858 garLoopResultBuilder]: For program point L211-2(lines 210 212) no Hoare annotation was computed. [2021-12-28 03:18:15,092 INFO L861 garLoopResultBuilder]: At program point assume_abort_if_notENTRY(lines 210 212) the Hoare annotation is: true [2021-12-28 03:18:15,092 INFO L858 garLoopResultBuilder]: For program point L211(line 211) no Hoare annotation was computed. [2021-12-28 03:18:15,092 INFO L858 garLoopResultBuilder]: For program point assume_abort_if_notEXIT(lines 210 212) no Hoare annotation was computed. [2021-12-28 03:18:15,092 INFO L858 garLoopResultBuilder]: For program point aws_c_string_is_validFINAL(lines 6263 6273) no Hoare annotation was computed. [2021-12-28 03:18:15,092 INFO L861 garLoopResultBuilder]: At program point aws_c_string_is_validENTRY(lines 6263 6273) the Hoare annotation is: true [2021-12-28 03:18:15,092 INFO L858 garLoopResultBuilder]: For program point aws_c_string_is_validEXIT(lines 6263 6273) no Hoare annotation was computed. [2021-12-28 03:18:15,092 INFO L858 garLoopResultBuilder]: For program point can_fail_allocatorFINAL(lines 6902 6904) no Hoare annotation was computed. [2021-12-28 03:18:15,093 INFO L858 garLoopResultBuilder]: For program point can_fail_allocatorEXIT(lines 6902 6904) no Hoare annotation was computed. [2021-12-28 03:18:15,093 INFO L861 garLoopResultBuilder]: At program point can_fail_allocatorENTRY(lines 6902 6904) the Hoare annotation is: true [2021-12-28 03:18:15,093 INFO L861 garLoopResultBuilder]: At program point aws_string_is_validENTRY(lines 6253 6258) the Hoare annotation is: true [2021-12-28 03:18:15,093 INFO L858 garLoopResultBuilder]: For program point L6257-2(line 6257) no Hoare annotation was computed. [2021-12-28 03:18:15,093 INFO L858 garLoopResultBuilder]: For program point L6257-3(line 6257) no Hoare annotation was computed. [2021-12-28 03:18:15,093 INFO L858 garLoopResultBuilder]: For program point L6257(line 6257) no Hoare annotation was computed. [2021-12-28 03:18:15,093 INFO L858 garLoopResultBuilder]: For program point aws_string_is_validFINAL(lines 6253 6258) no Hoare annotation was computed. [2021-12-28 03:18:15,093 INFO L858 garLoopResultBuilder]: For program point L6257-5(line 6257) no Hoare annotation was computed. [2021-12-28 03:18:15,094 INFO L858 garLoopResultBuilder]: For program point aws_string_is_validEXIT(lines 6253 6258) no Hoare annotation was computed. [2021-12-28 03:18:15,094 INFO L858 garLoopResultBuilder]: For program point nondet_uint64_tEXIT(line 266) no Hoare annotation was computed. [2021-12-28 03:18:15,094 INFO L861 garLoopResultBuilder]: At program point nondet_uint64_tENTRY(line 266) the Hoare annotation is: true [2021-12-28 03:18:15,094 INFO L858 garLoopResultBuilder]: For program point nondet_uint64_tFINAL(line 266) no Hoare annotation was computed. [2021-12-28 03:18:15,094 INFO L854 garLoopResultBuilder]: At program point L11324(line 11324) the Hoare annotation is: false [2021-12-28 03:18:15,094 INFO L858 garLoopResultBuilder]: For program point L11324-1(line 11324) no Hoare annotation was computed. [2021-12-28 03:18:15,094 INFO L861 garLoopResultBuilder]: At program point L11328(line 11328) the Hoare annotation is: true [2021-12-28 03:18:15,094 INFO L858 garLoopResultBuilder]: For program point L11060(lines 11060 11064) no Hoare annotation was computed. [2021-12-28 03:18:15,094 INFO L858 garLoopResultBuilder]: For program point L7113-1(lines 7112 7125) no Hoare annotation was computed. [2021-12-28 03:18:15,094 INFO L854 garLoopResultBuilder]: At program point L7113(line 7113) the Hoare annotation is: false [2021-12-28 03:18:15,095 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-12-28 03:18:15,095 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-12-28 03:18:15,095 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-12-28 03:18:15,095 INFO L854 garLoopResultBuilder]: At program point L10805-1(line 10805) the Hoare annotation is: false [2021-12-28 03:18:15,095 INFO L854 garLoopResultBuilder]: At program point L10805(line 10805) the Hoare annotation is: false [2021-12-28 03:18:15,095 INFO L858 garLoopResultBuilder]: For program point L11317(lines 11317 11327) no Hoare annotation was computed. [2021-12-28 03:18:15,095 INFO L858 garLoopResultBuilder]: For program point L10805-2(line 10805) no Hoare annotation was computed. [2021-12-28 03:18:15,095 INFO L858 garLoopResultBuilder]: For program point L11065(lines 11065 11073) no Hoare annotation was computed. [2021-12-28 03:18:15,095 INFO L854 garLoopResultBuilder]: At program point L11074(line 11074) the Hoare annotation is: false [2021-12-28 03:18:15,096 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-12-28 03:18:15,096 INFO L854 garLoopResultBuilder]: At program point L11074-2(lines 11056 11075) the Hoare annotation is: false [2021-12-28 03:18:15,096 INFO L858 garLoopResultBuilder]: For program point L11074-1(line 11074) no Hoare annotation was computed. [2021-12-28 03:18:15,096 INFO L858 garLoopResultBuilder]: For program point L10806-2(line 10806) no Hoare annotation was computed. [2021-12-28 03:18:15,096 INFO L854 garLoopResultBuilder]: At program point L10810-6(line 10810) the Hoare annotation is: false [2021-12-28 03:18:15,096 INFO L858 garLoopResultBuilder]: For program point L11318-1(line 11318) no Hoare annotation was computed. [2021-12-28 03:18:15,096 INFO L854 garLoopResultBuilder]: At program point L10806-1(line 10806) the Hoare annotation is: false [2021-12-28 03:18:15,096 INFO L858 garLoopResultBuilder]: For program point L11058(line 11058) no Hoare annotation was computed. [2021-12-28 03:18:15,096 INFO L858 garLoopResultBuilder]: For program point L10810-7(line 10810) no Hoare annotation was computed. [2021-12-28 03:18:15,097 INFO L858 garLoopResultBuilder]: For program point L10810-2(line 10810) no Hoare annotation was computed. [2021-12-28 03:18:15,097 INFO L858 garLoopResultBuilder]: For program point L7123-1(line 7123) no Hoare annotation was computed. [2021-12-28 03:18:15,097 INFO L858 garLoopResultBuilder]: For program point L10810-1(line 10810) no Hoare annotation was computed. [2021-12-28 03:18:15,097 INFO L854 garLoopResultBuilder]: At program point L7123(line 7123) the Hoare annotation is: false [2021-12-28 03:18:15,097 INFO L861 garLoopResultBuilder]: At program point L11318(line 11318) the Hoare annotation is: true [2021-12-28 03:18:15,097 INFO L854 garLoopResultBuilder]: At program point L10806(line 10806) the Hoare annotation is: false [2021-12-28 03:18:15,097 INFO L858 garLoopResultBuilder]: For program point L10810-4(line 10810) no Hoare annotation was computed. [2021-12-28 03:18:15,097 INFO L854 garLoopResultBuilder]: At program point L10810-3(line 10810) the Hoare annotation is: false [2021-12-28 03:18:15,097 INFO L858 garLoopResultBuilder]: For program point L7119-1(line 7119) no Hoare annotation was computed. [2021-12-28 03:18:15,098 INFO L858 garLoopResultBuilder]: For program point L11058-5(line 11058) no Hoare annotation was computed. [2021-12-28 03:18:15,098 INFO L854 garLoopResultBuilder]: At program point L7119(line 7119) the Hoare annotation is: false [2021-12-28 03:18:15,098 INFO L854 garLoopResultBuilder]: At program point L11058-2(line 11058) the Hoare annotation is: false [2021-12-28 03:18:15,098 INFO L854 garLoopResultBuilder]: At program point L10810-9(line 10810) the Hoare annotation is: false [2021-12-28 03:18:15,098 INFO L854 garLoopResultBuilder]: At program point L11058-4(line 11058) the Hoare annotation is: false [2021-12-28 03:18:15,098 INFO L858 garLoopResultBuilder]: For program point L11058-3(line 11058) no Hoare annotation was computed. [2021-12-28 03:18:15,098 INFO L858 garLoopResultBuilder]: For program point L11323(lines 11323 11326) no Hoare annotation was computed. [2021-12-28 03:18:15,098 INFO L854 garLoopResultBuilder]: At program point L11319-3(line 11319) the Hoare annotation is: false [2021-12-28 03:18:15,098 INFO L858 garLoopResultBuilder]: For program point L11319-5(line 11319) no Hoare annotation was computed. [2021-12-28 03:18:15,099 INFO L858 garLoopResultBuilder]: For program point L11319-4(line 11319) no Hoare annotation was computed. [2021-12-28 03:18:15,099 INFO L858 garLoopResultBuilder]: For program point L11059(line 11059) no Hoare annotation was computed. [2021-12-28 03:18:15,099 INFO L854 garLoopResultBuilder]: At program point L10803(lines 10803 10811) the Hoare annotation is: false [2021-12-28 03:18:15,099 INFO L858 garLoopResultBuilder]: For program point L11319-1(line 11319) no Hoare annotation was computed. [2021-12-28 03:18:15,099 INFO L854 garLoopResultBuilder]: At program point L11319(line 11319) the Hoare annotation is: false [2021-12-28 03:18:15,099 INFO L858 garLoopResultBuilder]: For program point L7120-1(lines 7120 7122) no Hoare annotation was computed. [2021-12-28 03:18:15,099 INFO L854 garLoopResultBuilder]: At program point L7120(lines 7120 7122) the Hoare annotation is: false [2021-12-28 03:18:15,099 INFO L858 garLoopResultBuilder]: For program point L11059-3(line 11059) no Hoare annotation was computed. [2021-12-28 03:18:15,099 INFO L854 garLoopResultBuilder]: At program point L11059-2(line 11059) the Hoare annotation is: false [2021-12-28 03:18:15,099 INFO L858 garLoopResultBuilder]: For program point L11059-5(line 11059) no Hoare annotation was computed. [2021-12-28 03:18:15,100 INFO L854 garLoopResultBuilder]: At program point L11059-4(line 11059) the Hoare annotation is: false [2021-12-28 03:18:15,100 INFO L858 garLoopResultBuilder]: For program point L7112(lines 7112 7125) no Hoare annotation was computed. [2021-12-28 03:18:15,100 INFO L858 garLoopResultBuilder]: For program point L223(line 223) no Hoare annotation was computed. [2021-12-28 03:18:15,100 INFO L861 garLoopResultBuilder]: At program point __VERIFIER_assertENTRY(lines 222 224) the Hoare annotation is: true [2021-12-28 03:18:15,100 INFO L858 garLoopResultBuilder]: For program point L223-1(line 223) no Hoare annotation was computed. [2021-12-28 03:18:15,100 INFO L858 garLoopResultBuilder]: For program point L223-3(lines 222 224) no Hoare annotation was computed. [2021-12-28 03:18:15,100 INFO L858 garLoopResultBuilder]: For program point __VERIFIER_assertEXIT(lines 222 224) no Hoare annotation was computed. [2021-12-28 03:18:15,100 INFO L858 garLoopResultBuilder]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 223) no Hoare annotation was computed. [2021-12-28 03:18:15,102 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2021-12-28 03:18:15,103 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-28 03:18:15,112 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.12 03:18:15 BoogieIcfgContainer [2021-12-28 03:18:15,112 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-28 03:18:15,112 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-28 03:18:15,112 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-28 03:18:15,112 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-28 03:18:15,113 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 03:18:08" (3/4) ... [2021-12-28 03:18:15,114 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-12-28 03:18:15,118 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ensure_string_is_allocated_bounded_length [2021-12-28 03:18:15,118 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure bounded_malloc [2021-12-28 03:18:15,118 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure aws_array_eq [2021-12-28 03:18:15,118 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure nondet_uint64_t [2021-12-28 03:18:15,119 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure nondet_bool [2021-12-28 03:18:15,119 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2021-12-28 03:18:15,119 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2021-12-28 03:18:15,119 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure aws_c_string_is_valid [2021-12-28 03:18:15,119 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure can_fail_allocator [2021-12-28 03:18:15,119 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure aws_string_is_valid [2021-12-28 03:18:15,124 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 29 nodes and edges [2021-12-28 03:18:15,125 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2021-12-28 03:18:15,125 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-12-28 03:18:15,126 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-12-28 03:18:15,144 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(str == 0) && !(\old(max_size) == 96)) && !(\result == 0)) && (\old(max_size) == max_size || max_size + -96 == 0) [2021-12-28 03:18:15,254 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-12-28 03:18:15,254 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-28 03:18:15,254 INFO L158 Benchmark]: Toolchain (without parser) took 10353.20ms. Allocated memory was 62.9MB in the beginning and 310.4MB in the end (delta: 247.5MB). Free memory was 32.2MB in the beginning and 211.4MB in the end (delta: -179.2MB). Peak memory consumption was 157.9MB. Max. memory is 16.1GB. [2021-12-28 03:18:15,255 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 62.9MB. Free memory was 45.5MB in the beginning and 45.4MB in the end (delta: 48.8kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-28 03:18:15,255 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2805.91ms. Allocated memory was 62.9MB in the beginning and 119.5MB in the end (delta: 56.6MB). Free memory was 32.0MB in the beginning and 59.4MB in the end (delta: -27.4MB). Peak memory consumption was 53.6MB. Max. memory is 16.1GB. [2021-12-28 03:18:15,255 INFO L158 Benchmark]: Boogie Procedure Inliner took 144.56ms. Allocated memory is still 119.5MB. Free memory was 59.4MB in the beginning and 48.4MB in the end (delta: 10.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-12-28 03:18:15,255 INFO L158 Benchmark]: Boogie Preprocessor took 71.31ms. Allocated memory is still 119.5MB. Free memory was 48.4MB in the beginning and 43.2MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-12-28 03:18:15,255 INFO L158 Benchmark]: RCFGBuilder took 628.51ms. Allocated memory is still 119.5MB. Free memory was 43.2MB in the beginning and 72.6MB in the end (delta: -29.4MB). Peak memory consumption was 11.1MB. Max. memory is 16.1GB. [2021-12-28 03:18:15,256 INFO L158 Benchmark]: TraceAbstraction took 6549.29ms. Allocated memory was 119.5MB in the beginning and 243.3MB in the end (delta: 123.7MB). Free memory was 75.6MB in the beginning and 77.5MB in the end (delta: -1.9MB). Peak memory consumption was 120.4MB. Max. memory is 16.1GB. [2021-12-28 03:18:15,256 INFO L158 Benchmark]: Witness Printer took 141.76ms. Allocated memory was 243.3MB in the beginning and 310.4MB in the end (delta: 67.1MB). Free memory was 77.5MB in the beginning and 211.4MB in the end (delta: -133.9MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2021-12-28 03:18:15,257 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 62.9MB. Free memory was 45.5MB in the beginning and 45.4MB in the end (delta: 48.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2805.91ms. Allocated memory was 62.9MB in the beginning and 119.5MB in the end (delta: 56.6MB). Free memory was 32.0MB in the beginning and 59.4MB in the end (delta: -27.4MB). Peak memory consumption was 53.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 144.56ms. Allocated memory is still 119.5MB. Free memory was 59.4MB in the beginning and 48.4MB in the end (delta: 10.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Preprocessor took 71.31ms. Allocated memory is still 119.5MB. Free memory was 48.4MB in the beginning and 43.2MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * RCFGBuilder took 628.51ms. Allocated memory is still 119.5MB. Free memory was 43.2MB in the beginning and 72.6MB in the end (delta: -29.4MB). Peak memory consumption was 11.1MB. Max. memory is 16.1GB. * TraceAbstraction took 6549.29ms. Allocated memory was 119.5MB in the beginning and 243.3MB in the end (delta: 123.7MB). Free memory was 75.6MB in the beginning and 77.5MB in the end (delta: -1.9MB). Peak memory consumption was 120.4MB. Max. memory is 16.1GB. * Witness Printer took 141.76ms. Allocated memory was 243.3MB in the beginning and 310.4MB in the end (delta: 67.1MB). Free memory was 77.5MB in the beginning and 211.4MB in the end (delta: -133.9MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 223]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 11 procedures, 110 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 6.5s, OverallIterations: 5, TraceHistogramMax: 8, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 524 SdHoareTripleChecker+Valid, 0.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 472 mSDsluCounter, 4006 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3428 mSDsCounter, 274 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1151 IncrementalHoareTripleChecker+Invalid, 1425 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 274 mSolverCounterUnsat, 578 mSDtfsCounter, 1151 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 695 GetRequests, 591 SyntacticMatches, 0 SemanticMatches, 104 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 259 ImplicationChecksByTransitivity, 1.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=125occurred in iteration=3, InterpolantAutomatonStates: 52, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 114 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 42 LocationsWithAnnotation, 155 PreInvPairs, 163 NumberOfFragments, 256 HoareAnnotationTreeSize, 155 FomulaSimplifications, 18 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 42 FomulaSimplificationsInter, 104 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 3.0s InterpolantComputationTime, 861 NumberOfCodeBlocks, 861 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 982 ConstructedInterpolants, 0 QuantifiedInterpolants, 2107 SizeOfPredicates, 27 NumberOfNonLiveVariables, 2896 ConjunctsInSsa, 79 ConjunctsInUnsatCore, 9 InterpolantComputations, 4 PerfectInterpolantSequences, 819/909 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 6819]: Loop Invariant Derived loop invariant: ((!(str == 0) && !(\old(max_size) == 96)) && !(\result == 0)) && (\old(max_size) == max_size || max_size + -96 == 0) - InvariantResult [Line: 10803]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 11056]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 10810]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 11328]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2021-12-28 03:18:15,282 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE