./Ultimate.py --spec /storage/repos/ultimate/trunk/examples/svcomp/properties/unreach-call.prp --file /storage/repos/ultimate/trunk/examples/svcomp/aws-c-common/aws_string_eq_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 678b828e 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 /storage/repos/ultimate/trunk/examples/svcomp/aws-c-common/aws_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 b7d9c02258b762d8466997acb808617c8ccd8db7 .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-678b828 [2020-12-07 17:13:00,377 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-07 17:13:00,380 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-07 17:13:00,425 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-07 17:13:00,426 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-07 17:13:00,431 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-07 17:13:00,435 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-07 17:13:00,443 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-07 17:13:00,447 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-07 17:13:00,453 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-07 17:13:00,455 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-07 17:13:00,460 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-07 17:13:00,460 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-07 17:13:00,464 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-07 17:13:00,465 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-07 17:13:00,467 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-07 17:13:00,468 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-07 17:13:00,472 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-07 17:13:00,475 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-07 17:13:00,483 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-07 17:13:00,486 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-07 17:13:00,488 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-07 17:13:00,490 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-07 17:13:00,492 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-07 17:13:00,501 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-07 17:13:00,501 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-07 17:13:00,502 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-07 17:13:00,504 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-07 17:13:00,505 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-07 17:13:00,506 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-07 17:13:00,506 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-07 17:13:00,507 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-07 17:13:00,510 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-07 17:13:00,511 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-07 17:13:00,513 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-07 17:13:00,513 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-07 17:13:00,514 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-07 17:13:00,514 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-07 17:13:00,515 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-07 17:13:00,529 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-07 17:13:00,530 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-07 17:13:00,531 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-07 17:13:00,591 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-07 17:13:00,592 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-07 17:13:00,593 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-07 17:13:00,594 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-07 17:13:00,599 INFO L138 SettingsManager]: * Use SBE=true [2020-12-07 17:13:00,599 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-07 17:13:00,600 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-07 17:13:00,600 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-07 17:13:00,600 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-07 17:13:00,600 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-07 17:13:00,600 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-07 17:13:00,601 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-07 17:13:00,601 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-07 17:13:00,601 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-07 17:13:00,601 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-07 17:13:00,602 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-07 17:13:00,602 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-07 17:13:00,602 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-07 17:13:00,602 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-07 17:13:00,603 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-07 17:13:00,603 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-07 17:13:00,603 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-07 17:13:00,603 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-07 17:13:00,604 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-07 17:13:00,604 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-07 17:13:00,604 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b7d9c02258b762d8466997acb808617c8ccd8db7 [2020-12-07 17:13:00,974 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-07 17:13:01,007 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-07 17:13:01,011 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-07 17:13:01,013 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-07 17:13:01,013 INFO L275 PluginConnector]: CDTParser initialized [2020-12-07 17:13:01,015 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/trunk/examples/svcomp/aws-c-common/aws_string_eq_harness.i [2020-12-07 17:13:01,099 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ef3397ff4/18d1b225b39e43dea31399a63007c35d/FLAGe97239d98 [2020-12-07 17:13:02,285 INFO L306 CDTParser]: Found 1 translation units. [2020-12-07 17:13:02,287 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/aws-c-common/aws_string_eq_harness.i [2020-12-07 17:13:02,346 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ef3397ff4/18d1b225b39e43dea31399a63007c35d/FLAGe97239d98 [2020-12-07 17:13:02,635 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ef3397ff4/18d1b225b39e43dea31399a63007c35d [2020-12-07 17:13:02,639 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-07 17:13:02,642 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-07 17:13:02,646 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-07 17:13:02,647 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-07 17:13:02,651 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-07 17:13:02,652 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 05:13:02" (1/1) ... [2020-12-07 17:13:02,656 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@476ddbc0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:13:02, skipping insertion in model container [2020-12-07 17:13:02,656 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 05:13:02" (1/1) ... [2020-12-07 17:13:02,666 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-07 17:13:02,805 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-07 17:13:03,058 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/aws-c-common/aws_string_eq_harness.i[4487,4500] [2020-12-07 17:13:03,066 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/aws-c-common/aws_string_eq_harness.i[4547,4560] [2020-12-07 17:13:03,092 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2020-12-07 17:13:03,098 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2020-12-07 17:13:03,913 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-07 17:13:03,914 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-07 17:13:03,914 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-07 17:13:03,915 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-07 17:13:03,917 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-07 17:13:03,933 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-07 17:13:03,934 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-07 17:13:03,936 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-07 17:13:03,937 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-07 17:13:04,395 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2020-12-07 17:13:04,397 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2020-12-07 17:13:04,398 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2020-12-07 17:13:04,400 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2020-12-07 17:13:04,401 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2020-12-07 17:13:04,402 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2020-12-07 17:13:04,403 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2020-12-07 17:13:04,404 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2020-12-07 17:13:04,405 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2020-12-07 17:13:04,406 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2020-12-07 17:13:04,668 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2020-12-07 17:13:04,863 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-07 17:13:04,864 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-07 17:13:04,901 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-07 17:13:04,943 INFO L203 MainTranslator]: Completed pre-run [2020-12-07 17:13:04,961 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/aws-c-common/aws_string_eq_harness.i[4487,4500] [2020-12-07 17:13:04,962 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/aws-c-common/aws_string_eq_harness.i[4547,4560] [2020-12-07 17:13:04,963 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2020-12-07 17:13:04,965 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2020-12-07 17:13:05,002 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-07 17:13:05,003 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-07 17:13:05,003 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-07 17:13:05,004 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-07 17:13:05,005 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-07 17:13:05,011 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-07 17:13:05,012 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-07 17:13:05,013 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-07 17:13:05,014 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-07 17:13:05,070 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2020-12-07 17:13:05,071 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2020-12-07 17:13:05,072 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2020-12-07 17:13:05,073 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2020-12-07 17:13:05,074 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2020-12-07 17:13:05,075 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2020-12-07 17:13:05,075 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2020-12-07 17:13:05,076 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2020-12-07 17:13:05,076 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2020-12-07 17:13:05,077 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2020-12-07 17:13:05,099 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2020-12-07 17:13:05,195 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-07 17:13:05,195 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-07 17:13:05,216 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-07 17:13:06,114 INFO L208 MainTranslator]: Completed translation [2020-12-07 17:13:06,115 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:13:06 WrapperNode [2020-12-07 17:13:06,115 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-07 17:13:06,116 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-07 17:13:06,116 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-07 17:13:06,116 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-07 17:13:06,123 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:13:06" (1/1) ... [2020-12-07 17:13:06,250 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:13:06" (1/1) ... [2020-12-07 17:13:06,335 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-07 17:13:06,337 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-07 17:13:06,337 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-07 17:13:06,337 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-07 17:13:06,347 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:13:06" (1/1) ... [2020-12-07 17:13:06,348 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:13:06" (1/1) ... [2020-12-07 17:13:06,355 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:13:06" (1/1) ... [2020-12-07 17:13:06,355 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:13:06" (1/1) ... [2020-12-07 17:13:06,395 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:13:06" (1/1) ... [2020-12-07 17:13:06,406 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:13:06" (1/1) ... [2020-12-07 17:13:06,419 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:13:06" (1/1) ... [2020-12-07 17:13:06,436 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-07 17:13:06,437 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-07 17:13:06,438 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-07 17:13:06,438 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-07 17:13:06,440 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:13:06" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-07 17:13:06,551 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2020-12-07 17:13:06,552 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-07 17:13:06,552 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-12-07 17:13:06,552 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-12-07 17:13:06,552 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-07 17:13:06,553 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-07 17:13:06,553 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-07 17:13:06,553 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-12-07 17:13:06,553 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-07 17:13:06,553 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-07 17:13:07,636 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-07 17:13:07,637 INFO L299 CfgBuilder]: Removed 78 assume(true) statements. [2020-12-07 17:13:07,638 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 05:13:07 BoogieIcfgContainer [2020-12-07 17:13:07,639 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-07 17:13:07,640 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-07 17:13:07,641 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-07 17:13:07,644 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-07 17:13:07,644 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 05:13:02" (1/3) ... [2020-12-07 17:13:07,645 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d7c8f73 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 05:13:07, skipping insertion in model container [2020-12-07 17:13:07,646 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:13:06" (2/3) ... [2020-12-07 17:13:07,646 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d7c8f73 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 05:13:07, skipping insertion in model container [2020-12-07 17:13:07,646 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 05:13:07" (3/3) ... [2020-12-07 17:13:07,648 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_string_eq_harness.i [2020-12-07 17:13:07,663 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-07 17:13:07,668 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2020-12-07 17:13:07,681 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-12-07 17:13:07,709 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-07 17:13:07,709 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-07 17:13:07,709 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-07 17:13:07,710 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-07 17:13:07,710 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-07 17:13:07,710 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-07 17:13:07,710 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-07 17:13:07,710 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-07 17:13:07,728 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states. [2020-12-07 17:13:07,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-12-07 17:13:07,736 INFO L414 BasicCegarLoop]: Found error trace [2020-12-07 17:13:07,737 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-07 17:13:07,737 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-07 17:13:07,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-07 17:13:07,744 INFO L82 PathProgramCache]: Analyzing trace with hash 1662175227, now seen corresponding path program 1 times [2020-12-07 17:13:07,755 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-07 17:13:07,755 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1604173281] [2020-12-07 17:13:07,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-07 17:13:08,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-07 17:13:08,204 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-07 17:13:08,205 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1604173281] [2020-12-07 17:13:08,206 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-07 17:13:08,206 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-07 17:13:08,207 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [597685660] [2020-12-07 17:13:08,212 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-07 17:13:08,212 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-07 17:13:08,226 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-07 17:13:08,227 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-07 17:13:08,230 INFO L87 Difference]: Start difference. First operand 98 states. Second operand 2 states. [2020-12-07 17:13:08,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-07 17:13:08,263 INFO L93 Difference]: Finished difference Result 190 states and 254 transitions. [2020-12-07 17:13:08,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-07 17:13:08,265 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 21 [2020-12-07 17:13:08,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-07 17:13:08,276 INFO L225 Difference]: With dead ends: 190 [2020-12-07 17:13:08,277 INFO L226 Difference]: Without dead ends: 93 [2020-12-07 17:13:08,280 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-07 17:13:08,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2020-12-07 17:13:08,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 93. [2020-12-07 17:13:08,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 93 states. [2020-12-07 17:13:08,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 111 transitions. [2020-12-07 17:13:08,326 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 111 transitions. Word has length 21 [2020-12-07 17:13:08,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-07 17:13:08,327 INFO L481 AbstractCegarLoop]: Abstraction has 93 states and 111 transitions. [2020-12-07 17:13:08,327 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-07 17:13:08,327 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 111 transitions. [2020-12-07 17:13:08,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-12-07 17:13:08,328 INFO L414 BasicCegarLoop]: Found error trace [2020-12-07 17:13:08,329 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-07 17:13:08,329 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-07 17:13:08,329 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-07 17:13:08,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-07 17:13:08,331 INFO L82 PathProgramCache]: Analyzing trace with hash -1931727491, now seen corresponding path program 1 times [2020-12-07 17:13:08,331 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-07 17:13:08,331 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1223265937] [2020-12-07 17:13:08,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-07 17:13:08,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-07 17:13:08,562 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-07 17:13:08,563 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1223265937] [2020-12-07 17:13:08,564 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-07 17:13:08,564 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-07 17:13:08,564 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [637872033] [2020-12-07 17:13:08,566 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-07 17:13:08,566 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-07 17:13:08,567 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-07 17:13:08,568 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-07 17:13:08,568 INFO L87 Difference]: Start difference. First operand 93 states and 111 transitions. Second operand 4 states. [2020-12-07 17:13:08,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-07 17:13:08,617 INFO L93 Difference]: Finished difference Result 170 states and 204 transitions. [2020-12-07 17:13:08,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-07 17:13:08,618 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 21 [2020-12-07 17:13:08,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-07 17:13:08,620 INFO L225 Difference]: With dead ends: 170 [2020-12-07 17:13:08,620 INFO L226 Difference]: Without dead ends: 93 [2020-12-07 17:13:08,624 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-07 17:13:08,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2020-12-07 17:13:08,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 93. [2020-12-07 17:13:08,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 93 states. [2020-12-07 17:13:08,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 110 transitions. [2020-12-07 17:13:08,646 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 110 transitions. Word has length 21 [2020-12-07 17:13:08,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-07 17:13:08,647 INFO L481 AbstractCegarLoop]: Abstraction has 93 states and 110 transitions. [2020-12-07 17:13:08,647 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-07 17:13:08,647 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 110 transitions. [2020-12-07 17:13:08,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-12-07 17:13:08,649 INFO L414 BasicCegarLoop]: Found error trace [2020-12-07 17:13:08,650 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-07 17:13:08,650 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-07 17:13:08,651 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-07 17:13:08,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-07 17:13:08,655 INFO L82 PathProgramCache]: Analyzing trace with hash -1416092519, now seen corresponding path program 1 times [2020-12-07 17:13:08,655 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-07 17:13:08,655 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1342748739] [2020-12-07 17:13:08,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-07 17:13:08,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-07 17:13:08,948 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-07 17:13:08,949 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1342748739] [2020-12-07 17:13:08,950 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-07 17:13:08,950 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-12-07 17:13:08,950 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1629649394] [2020-12-07 17:13:08,951 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-12-07 17:13:08,952 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-07 17:13:08,962 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-12-07 17:13:08,967 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2020-12-07 17:13:08,967 INFO L87 Difference]: Start difference. First operand 93 states and 110 transitions. Second operand 11 states. [2020-12-07 17:13:09,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-07 17:13:09,381 INFO L93 Difference]: Finished difference Result 139 states and 164 transitions. [2020-12-07 17:13:09,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-12-07 17:13:09,382 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 32 [2020-12-07 17:13:09,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-07 17:13:09,388 INFO L225 Difference]: With dead ends: 139 [2020-12-07 17:13:09,388 INFO L226 Difference]: Without dead ends: 93 [2020-12-07 17:13:09,390 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=128, Invalid=334, Unknown=0, NotChecked=0, Total=462 [2020-12-07 17:13:09,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2020-12-07 17:13:09,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 93. [2020-12-07 17:13:09,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 93 states. [2020-12-07 17:13:09,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 109 transitions. [2020-12-07 17:13:09,416 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 109 transitions. Word has length 32 [2020-12-07 17:13:09,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-07 17:13:09,417 INFO L481 AbstractCegarLoop]: Abstraction has 93 states and 109 transitions. [2020-12-07 17:13:09,417 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-12-07 17:13:09,417 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 109 transitions. [2020-12-07 17:13:09,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-12-07 17:13:09,420 INFO L414 BasicCegarLoop]: Found error trace [2020-12-07 17:13:09,420 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-07 17:13:09,421 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-07 17:13:09,421 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-07 17:13:09,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-07 17:13:09,423 INFO L82 PathProgramCache]: Analyzing trace with hash 987095230, now seen corresponding path program 1 times [2020-12-07 17:13:09,424 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-07 17:13:09,424 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [879511928] [2020-12-07 17:13:09,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-07 17:13:09,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-07 17:13:09,638 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-07 17:13:09,638 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [879511928] [2020-12-07 17:13:09,639 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-07 17:13:09,639 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-12-07 17:13:09,639 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1535832017] [2020-12-07 17:13:09,639 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-07 17:13:09,640 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-07 17:13:09,640 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-07 17:13:09,641 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2020-12-07 17:13:09,641 INFO L87 Difference]: Start difference. First operand 93 states and 109 transitions. Second operand 9 states. [2020-12-07 17:13:09,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-07 17:13:09,844 INFO L93 Difference]: Finished difference Result 148 states and 174 transitions. [2020-12-07 17:13:09,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-12-07 17:13:09,844 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 37 [2020-12-07 17:13:09,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-07 17:13:09,845 INFO L225 Difference]: With dead ends: 148 [2020-12-07 17:13:09,845 INFO L226 Difference]: Without dead ends: 93 [2020-12-07 17:13:09,846 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=92, Invalid=214, Unknown=0, NotChecked=0, Total=306 [2020-12-07 17:13:09,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2020-12-07 17:13:09,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 93. [2020-12-07 17:13:09,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 93 states. [2020-12-07 17:13:09,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 108 transitions. [2020-12-07 17:13:09,855 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 108 transitions. Word has length 37 [2020-12-07 17:13:09,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-07 17:13:09,855 INFO L481 AbstractCegarLoop]: Abstraction has 93 states and 108 transitions. [2020-12-07 17:13:09,855 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-07 17:13:09,855 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 108 transitions. [2020-12-07 17:13:09,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2020-12-07 17:13:09,857 INFO L414 BasicCegarLoop]: Found error trace [2020-12-07 17:13:09,857 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-07 17:13:09,857 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-07 17:13:09,857 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-07 17:13:09,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-07 17:13:09,858 INFO L82 PathProgramCache]: Analyzing trace with hash -1359192443, now seen corresponding path program 1 times [2020-12-07 17:13:09,858 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-07 17:13:09,858 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2021680456] [2020-12-07 17:13:09,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-07 17:13:09,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-07 17:13:09,956 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-07 17:13:09,957 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2021680456] [2020-12-07 17:13:09,957 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-07 17:13:09,957 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-07 17:13:09,957 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2035142141] [2020-12-07 17:13:09,958 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-07 17:13:09,958 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-07 17:13:09,958 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-07 17:13:09,959 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-07 17:13:09,959 INFO L87 Difference]: Start difference. First operand 93 states and 108 transitions. Second operand 4 states. [2020-12-07 17:13:10,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-07 17:13:10,028 INFO L93 Difference]: Finished difference Result 166 states and 195 transitions. [2020-12-07 17:13:10,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-07 17:13:10,028 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 42 [2020-12-07 17:13:10,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-07 17:13:10,029 INFO L225 Difference]: With dead ends: 166 [2020-12-07 17:13:10,029 INFO L226 Difference]: Without dead ends: 109 [2020-12-07 17:13:10,030 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-07 17:13:10,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2020-12-07 17:13:10,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 101. [2020-12-07 17:13:10,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 101 states. [2020-12-07 17:13:10,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 116 transitions. [2020-12-07 17:13:10,039 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 116 transitions. Word has length 42 [2020-12-07 17:13:10,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-07 17:13:10,040 INFO L481 AbstractCegarLoop]: Abstraction has 101 states and 116 transitions. [2020-12-07 17:13:10,040 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-07 17:13:10,040 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 116 transitions. [2020-12-07 17:13:10,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2020-12-07 17:13:10,041 INFO L414 BasicCegarLoop]: Found error trace [2020-12-07 17:13:10,041 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-07 17:13:10,041 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-07 17:13:10,041 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-07 17:13:10,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-07 17:13:10,042 INFO L82 PathProgramCache]: Analyzing trace with hash 2118126403, now seen corresponding path program 1 times [2020-12-07 17:13:10,042 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-07 17:13:10,042 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1121715152] [2020-12-07 17:13:10,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-07 17:13:10,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-07 17:13:10,195 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-07 17:13:10,196 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1121715152] [2020-12-07 17:13:10,196 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-07 17:13:10,196 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-12-07 17:13:10,196 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1821967535] [2020-12-07 17:13:10,197 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-12-07 17:13:10,197 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-07 17:13:10,198 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-12-07 17:13:10,198 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2020-12-07 17:13:10,198 INFO L87 Difference]: Start difference. First operand 101 states and 116 transitions. Second operand 10 states. [2020-12-07 17:13:10,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-07 17:13:10,479 INFO L93 Difference]: Finished difference Result 162 states and 187 transitions. [2020-12-07 17:13:10,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-12-07 17:13:10,480 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 42 [2020-12-07 17:13:10,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-07 17:13:10,483 INFO L225 Difference]: With dead ends: 162 [2020-12-07 17:13:10,483 INFO L226 Difference]: Without dead ends: 97 [2020-12-07 17:13:10,485 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=111, Invalid=269, Unknown=0, NotChecked=0, Total=380 [2020-12-07 17:13:10,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2020-12-07 17:13:10,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 97. [2020-12-07 17:13:10,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 97 states. [2020-12-07 17:13:10,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 110 transitions. [2020-12-07 17:13:10,505 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 110 transitions. Word has length 42 [2020-12-07 17:13:10,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-07 17:13:10,506 INFO L481 AbstractCegarLoop]: Abstraction has 97 states and 110 transitions. [2020-12-07 17:13:10,506 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-12-07 17:13:10,506 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 110 transitions. [2020-12-07 17:13:10,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2020-12-07 17:13:10,513 INFO L414 BasicCegarLoop]: Found error trace [2020-12-07 17:13:10,514 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-07 17:13:10,514 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-07 17:13:10,514 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-07 17:13:10,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-07 17:13:10,515 INFO L82 PathProgramCache]: Analyzing trace with hash -1578047161, now seen corresponding path program 1 times [2020-12-07 17:13:10,516 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-07 17:13:10,516 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [165777104] [2020-12-07 17:13:10,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-07 17:13:10,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-07 17:13:10,921 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-07 17:13:10,922 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [165777104] [2020-12-07 17:13:10,922 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-07 17:13:10,922 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-07 17:13:10,923 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [450722021] [2020-12-07 17:13:10,923 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-07 17:13:10,923 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-07 17:13:10,924 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-07 17:13:10,924 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-12-07 17:13:10,925 INFO L87 Difference]: Start difference. First operand 97 states and 110 transitions. Second operand 6 states. [2020-12-07 17:13:11,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-07 17:13:11,004 INFO L93 Difference]: Finished difference Result 97 states and 110 transitions. [2020-12-07 17:13:11,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-07 17:13:11,004 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 42 [2020-12-07 17:13:11,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-07 17:13:11,005 INFO L225 Difference]: With dead ends: 97 [2020-12-07 17:13:11,005 INFO L226 Difference]: Without dead ends: 0 [2020-12-07 17:13:11,005 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2020-12-07 17:13:11,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-07 17:13:11,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-07 17:13:11,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-07 17:13:11,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-07 17:13:11,007 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 42 [2020-12-07 17:13:11,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-07 17:13:11,007 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-07 17:13:11,007 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-07 17:13:11,007 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-07 17:13:11,008 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-07 17:13:11,008 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-12-07 17:13:11,010 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-12-07 17:13:11,084 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 223) no Hoare annotation was computed. [2020-12-07 17:13:11,084 INFO L262 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-12-07 17:13:11,085 INFO L258 CegarLoopResult]: At program point L6891-1(lines 6890 6892) the Hoare annotation is: (and (= ULTIMATE.start_aws_string_eq_harness_~str_a~1.base 0) (= ULTIMATE.start_aws_string_eq_harness_~str_a~1.offset 0)) [2020-12-07 17:13:11,085 INFO L258 CegarLoopResult]: At program point L6891(lines 6890 6892) the Hoare annotation is: false [2020-12-07 17:13:11,085 INFO L265 CegarLoopResult]: At program point L8923(line 8923) the Hoare annotation is: true [2020-12-07 17:13:11,085 INFO L262 CegarLoopResult]: For program point L8032(lines 8032 8036) no Hoare annotation was computed. [2020-12-07 17:13:11,086 INFO L262 CegarLoopResult]: For program point L7421(lines 7421 7429) no Hoare annotation was computed. [2020-12-07 17:13:11,086 INFO L262 CegarLoopResult]: For program point L6811(lines 6811 6812) no Hoare annotation was computed. [2020-12-07 17:13:11,086 INFO L262 CegarLoopResult]: For program point L6811-5(lines 6811 6812) no Hoare annotation was computed. [2020-12-07 17:13:11,086 INFO L262 CegarLoopResult]: For program point L6811-3(lines 6811 6812) no Hoare annotation was computed. [2020-12-07 17:13:11,086 INFO L262 CegarLoopResult]: For program point L6811-2(lines 6811 6812) no Hoare annotation was computed. [2020-12-07 17:13:11,086 INFO L262 CegarLoopResult]: For program point L222(lines 222 224) no Hoare annotation was computed. [2020-12-07 17:13:11,087 INFO L262 CegarLoopResult]: For program point L222-1(lines 7102 7112) no Hoare annotation was computed. [2020-12-07 17:13:11,087 INFO L262 CegarLoopResult]: For program point L222-2(lines 222 224) no Hoare annotation was computed. [2020-12-07 17:13:11,087 INFO L262 CegarLoopResult]: For program point L222-3(lines 222 224) no Hoare annotation was computed. [2020-12-07 17:13:11,087 INFO L262 CegarLoopResult]: For program point L222-4(lines 222 224) no Hoare annotation was computed. [2020-12-07 17:13:11,087 INFO L262 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-12-07 17:13:11,087 INFO L262 CegarLoopResult]: For program point L223(line 223) no Hoare annotation was computed. [2020-12-07 17:13:11,088 INFO L262 CegarLoopResult]: For program point L223-1(line 223) no Hoare annotation was computed. [2020-12-07 17:13:11,088 INFO L262 CegarLoopResult]: For program point L223-3(line 223) no Hoare annotation was computed. [2020-12-07 17:13:11,088 INFO L262 CegarLoopResult]: For program point L223-4(line 223) no Hoare annotation was computed. [2020-12-07 17:13:11,088 INFO L262 CegarLoopResult]: For program point L223-6(line 223) no Hoare annotation was computed. [2020-12-07 17:13:11,088 INFO L262 CegarLoopResult]: For program point L223-7(line 223) no Hoare annotation was computed. [2020-12-07 17:13:11,088 INFO L262 CegarLoopResult]: For program point L223-9(line 223) no Hoare annotation was computed. [2020-12-07 17:13:11,089 INFO L262 CegarLoopResult]: For program point L223-10(line 223) no Hoare annotation was computed. [2020-12-07 17:13:11,089 INFO L262 CegarLoopResult]: For program point L223-12(line 223) no Hoare annotation was computed. [2020-12-07 17:13:11,089 INFO L262 CegarLoopResult]: For program point L223-13(line 223) no Hoare annotation was computed. [2020-12-07 17:13:11,089 INFO L262 CegarLoopResult]: For program point L8911(lines 8911 8922) no Hoare annotation was computed. [2020-12-07 17:13:11,089 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 223) no Hoare annotation was computed. [2020-12-07 17:13:11,090 INFO L262 CegarLoopResult]: For program point L8912(lines 8912 8913) no Hoare annotation was computed. [2020-12-07 17:13:11,090 INFO L262 CegarLoopResult]: For program point L8912-2(lines 8912 8913) no Hoare annotation was computed. [2020-12-07 17:13:11,090 INFO L258 CegarLoopResult]: At program point L8038(lines 8019 8039) the Hoare annotation is: (and (= ULTIMATE.start_aws_string_eq_harness_~str_a~1.base 0) (= ULTIMATE.start_aws_string_eq_harness_~str_a~1.offset 0)) [2020-12-07 17:13:11,090 INFO L258 CegarLoopResult]: At program point L6816-1(lines 6807 6817) the Hoare annotation is: (and (= ULTIMATE.start_aws_string_eq_harness_~str_a~1.base 0) (= ULTIMATE.start_aws_string_eq_harness_~str_a~1.offset 0)) [2020-12-07 17:13:11,090 INFO L258 CegarLoopResult]: At program point L6816(lines 6807 6817) the Hoare annotation is: false [2020-12-07 17:13:11,091 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION(line 223) no Hoare annotation was computed. [2020-12-07 17:13:11,091 INFO L262 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-12-07 17:13:11,091 INFO L262 CegarLoopResult]: For program point L210(lines 210 212) no Hoare annotation was computed. [2020-12-07 17:13:11,091 INFO L262 CegarLoopResult]: For program point L210-1(lines 210 212) no Hoare annotation was computed. [2020-12-07 17:13:11,091 INFO L262 CegarLoopResult]: For program point L210-2(lines 210 212) no Hoare annotation was computed. [2020-12-07 17:13:11,092 INFO L262 CegarLoopResult]: For program point L210-3(lines 210 212) no Hoare annotation was computed. [2020-12-07 17:13:11,092 INFO L262 CegarLoopResult]: For program point L210-4(lines 210 212) no Hoare annotation was computed. [2020-12-07 17:13:11,092 INFO L262 CegarLoopResult]: For program point L210-5(lines 210 212) no Hoare annotation was computed. [2020-12-07 17:13:11,092 INFO L262 CegarLoopResult]: For program point L210-6(lines 210 212) no Hoare annotation was computed. [2020-12-07 17:13:11,092 INFO L262 CegarLoopResult]: For program point L210-7(lines 8026 8030) no Hoare annotation was computed. [2020-12-07 17:13:11,092 INFO L262 CegarLoopResult]: For program point L210-8(lines 210 212) no Hoare annotation was computed. [2020-12-07 17:13:11,093 INFO L262 CegarLoopResult]: For program point L8915(line 8915) no Hoare annotation was computed. [2020-12-07 17:13:11,093 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION(line 223) no Hoare annotation was computed. [2020-12-07 17:13:11,093 INFO L262 CegarLoopResult]: For program point L211(line 211) no Hoare annotation was computed. [2020-12-07 17:13:11,093 INFO L262 CegarLoopResult]: For program point L211-2(line 211) no Hoare annotation was computed. [2020-12-07 17:13:11,093 INFO L262 CegarLoopResult]: For program point L211-4(line 211) no Hoare annotation was computed. [2020-12-07 17:13:11,094 INFO L262 CegarLoopResult]: For program point L211-6(line 211) no Hoare annotation was computed. [2020-12-07 17:13:11,094 INFO L262 CegarLoopResult]: For program point L8915-2(line 8915) no Hoare annotation was computed. [2020-12-07 17:13:11,094 INFO L262 CegarLoopResult]: For program point L211-8(line 211) no Hoare annotation was computed. [2020-12-07 17:13:11,094 INFO L262 CegarLoopResult]: For program point L211-10(line 211) no Hoare annotation was computed. [2020-12-07 17:13:11,094 INFO L262 CegarLoopResult]: For program point L211-12(line 211) no Hoare annotation was computed. [2020-12-07 17:13:11,094 INFO L265 CegarLoopResult]: At program point L261(line 261) the Hoare annotation is: true [2020-12-07 17:13:11,095 INFO L262 CegarLoopResult]: For program point L211-14(line 211) no Hoare annotation was computed. [2020-12-07 17:13:11,095 INFO L258 CegarLoopResult]: At program point L261-1(line 261) the Hoare annotation is: false [2020-12-07 17:13:11,095 INFO L258 CegarLoopResult]: At program point L261-2(line 261) the Hoare annotation is: (and (= ULTIMATE.start_aws_string_eq_harness_~str_a~1.base 0) (= ULTIMATE.start_aws_string_eq_harness_~str_a~1.offset 0)) [2020-12-07 17:13:11,095 INFO L262 CegarLoopResult]: For program point L211-16(line 211) no Hoare annotation was computed. [2020-12-07 17:13:11,095 INFO L258 CegarLoopResult]: At program point L261-3(line 261) the Hoare annotation is: (and (= ULTIMATE.start_aws_string_eq_harness_~str_a~1.base 0) (= ULTIMATE.start_aws_string_eq_harness_~str_a~1.offset 0)) [2020-12-07 17:13:11,096 INFO L262 CegarLoopResult]: For program point L8916(lines 8916 8921) no Hoare annotation was computed. [2020-12-07 17:13:11,096 INFO L262 CegarLoopResult]: For program point L6257-2(line 6257) no Hoare annotation was computed. [2020-12-07 17:13:11,096 INFO L262 CegarLoopResult]: For program point L6257-3(line 6257) no Hoare annotation was computed. [2020-12-07 17:13:11,096 INFO L262 CegarLoopResult]: For program point L6257(line 6257) no Hoare annotation was computed. [2020-12-07 17:13:11,096 INFO L258 CegarLoopResult]: At program point L6257-6(lines 6253 6258) the Hoare annotation is: (and (= ULTIMATE.start_aws_string_eq_harness_~str_a~1.base 0) (= ULTIMATE.start_aws_string_eq_harness_~str_a~1.offset 0)) [2020-12-07 17:13:11,097 INFO L262 CegarLoopResult]: For program point L6257-7(line 6257) no Hoare annotation was computed. [2020-12-07 17:13:11,097 INFO L262 CegarLoopResult]: For program point L6257-5(line 6257) no Hoare annotation was computed. [2020-12-07 17:13:11,097 INFO L262 CegarLoopResult]: For program point L6257-10(line 6257) no Hoare annotation was computed. [2020-12-07 17:13:11,097 INFO L258 CegarLoopResult]: At program point L7430(lines 7412 7431) the Hoare annotation is: (and (= ULTIMATE.start_aws_string_eq_harness_~str_a~1.base 0) (= ULTIMATE.start_aws_string_eq_harness_~str_a~1.offset 0)) [2020-12-07 17:13:11,097 INFO L262 CegarLoopResult]: For program point L6257-9(line 6257) no Hoare annotation was computed. [2020-12-07 17:13:11,098 INFO L262 CegarLoopResult]: For program point L6257-14(line 6257) no Hoare annotation was computed. [2020-12-07 17:13:11,098 INFO L262 CegarLoopResult]: For program point L6257-12(line 6257) no Hoare annotation was computed. [2020-12-07 17:13:11,098 INFO L258 CegarLoopResult]: At program point L6257-13(lines 6253 6258) the Hoare annotation is: (and (= ULTIMATE.start_aws_string_eq_harness_~str_a~1.base 0) (= ULTIMATE.start_aws_string_eq_harness_~str_a~1.offset 0)) [2020-12-07 17:13:11,098 INFO L262 CegarLoopResult]: For program point L6257-19(line 6257) no Hoare annotation was computed. [2020-12-07 17:13:11,098 INFO L262 CegarLoopResult]: For program point L6257-16(line 6257) no Hoare annotation was computed. [2020-12-07 17:13:11,098 INFO L262 CegarLoopResult]: For program point L6257-17(line 6257) no Hoare annotation was computed. [2020-12-07 17:13:11,099 INFO L262 CegarLoopResult]: For program point L6257-23(line 6257) no Hoare annotation was computed. [2020-12-07 17:13:11,099 INFO L262 CegarLoopResult]: For program point L7100(lines 7100 7113) no Hoare annotation was computed. [2020-12-07 17:13:11,099 INFO L258 CegarLoopResult]: At program point L6257-20(lines 6253 6258) the Hoare annotation is: false [2020-12-07 17:13:11,099 INFO L262 CegarLoopResult]: For program point L6257-21(line 6257) no Hoare annotation was computed. [2020-12-07 17:13:11,099 INFO L262 CegarLoopResult]: For program point L7414(line 7414) no Hoare annotation was computed. [2020-12-07 17:13:11,099 INFO L262 CegarLoopResult]: For program point L6257-26(line 6257) no Hoare annotation was computed. [2020-12-07 17:13:11,100 INFO L258 CegarLoopResult]: At program point L6257-27(lines 6253 6258) the Hoare annotation is: false [2020-12-07 17:13:11,100 INFO L262 CegarLoopResult]: For program point L6257-24(line 6257) no Hoare annotation was computed. [2020-12-07 17:13:11,100 INFO L262 CegarLoopResult]: For program point L7414-2(line 7414) no Hoare annotation was computed. [2020-12-07 17:13:11,100 INFO L262 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-12-07 17:13:11,100 INFO L262 CegarLoopResult]: For program point L7415(line 7415) no Hoare annotation was computed. [2020-12-07 17:13:11,100 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 223) no Hoare annotation was computed. [2020-12-07 17:13:11,101 INFO L258 CegarLoopResult]: At program point L6804-1(lines 6801 6805) the Hoare annotation is: (and (= ULTIMATE.start_aws_string_eq_harness_~str_a~1.base 0) (= ULTIMATE.start_aws_string_eq_harness_~str_a~1.offset 0)) [2020-12-07 17:13:11,101 INFO L258 CegarLoopResult]: At program point L6804(lines 6801 6805) the Hoare annotation is: false [2020-12-07 17:13:11,101 INFO L262 CegarLoopResult]: For program point L7415-2(line 7415) no Hoare annotation was computed. [2020-12-07 17:13:11,101 INFO L258 CegarLoopResult]: At program point L6887-1(lines 6883 6888) the Hoare annotation is: (and (= ULTIMATE.start_aws_string_eq_harness_~str_a~1.base 0) (= ULTIMATE.start_aws_string_eq_harness_~str_a~1.offset 0)) [2020-12-07 17:13:11,101 INFO L258 CegarLoopResult]: At program point L6887(lines 6883 6888) the Hoare annotation is: false [2020-12-07 17:13:11,101 INFO L262 CegarLoopResult]: For program point L7416(lines 7416 7420) no Hoare annotation was computed. [2020-12-07 17:13:11,102 INFO L258 CegarLoopResult]: At program point L266(line 266) the Hoare annotation is: (= ULTIMATE.start_ensure_string_is_allocated_bounded_length_~max_size 16) [2020-12-07 17:13:11,102 INFO L258 CegarLoopResult]: At program point L266-1(line 266) the Hoare annotation is: (and (= ULTIMATE.start_aws_string_eq_harness_~str_a~1.base 0) (= ULTIMATE.start_aws_string_eq_harness_~str_a~1.offset 0)) [2020-12-07 17:13:11,102 INFO L258 CegarLoopResult]: At program point L266-2(line 266) the Hoare annotation is: false [2020-12-07 17:13:11,121 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 05:13:11 BoogieIcfgContainer [2020-12-07 17:13:11,122 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-07 17:13:11,122 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-07 17:13:11,122 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-07 17:13:11,123 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-07 17:13:11,123 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 05:13:07" (3/4) ... [2020-12-07 17:13:11,127 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-07 17:13:11,146 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 36 nodes and edges [2020-12-07 17:13:11,147 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2020-12-07 17:13:11,149 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-12-07 17:13:11,150 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-07 17:13:11,500 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-12-07 17:13:11,501 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-07 17:13:11,503 INFO L168 Benchmark]: Toolchain (without parser) took 8860.31 ms. Allocated memory was 46.1 MB in the beginning and 180.4 MB in the end (delta: 134.2 MB). Free memory was 25.4 MB in the beginning and 33.4 MB in the end (delta: -8.0 MB). Peak memory consumption was 129.4 MB. Max. memory is 16.1 GB. [2020-12-07 17:13:11,503 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 46.1 MB. Free memory was 26.9 MB in the beginning and 26.8 MB in the end (delta: 69.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-07 17:13:11,505 INFO L168 Benchmark]: CACSL2BoogieTranslator took 3468.98 ms. Allocated memory was 46.1 MB in the beginning and 111.1 MB in the end (delta: 65.0 MB). Free memory was 25.3 MB in the beginning and 60.3 MB in the end (delta: -35.0 MB). Peak memory consumption was 79.4 MB. Max. memory is 16.1 GB. [2020-12-07 17:13:11,505 INFO L168 Benchmark]: Boogie Procedure Inliner took 219.90 ms. Allocated memory is still 111.1 MB. Free memory was 60.3 MB in the beginning and 50.9 MB in the end (delta: 9.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-12-07 17:13:11,505 INFO L168 Benchmark]: Boogie Preprocessor took 100.03 ms. Allocated memory is still 111.1 MB. Free memory was 50.9 MB in the beginning and 45.6 MB in the end (delta: 5.3 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2020-12-07 17:13:11,506 INFO L168 Benchmark]: RCFGBuilder took 1201.57 ms. Allocated memory is still 111.1 MB. Free memory was 45.6 MB in the beginning and 60.9 MB in the end (delta: -15.3 MB). Peak memory consumption was 37.3 MB. Max. memory is 16.1 GB. [2020-12-07 17:13:11,507 INFO L168 Benchmark]: TraceAbstraction took 3481.24 ms. Allocated memory was 111.1 MB in the beginning and 180.4 MB in the end (delta: 69.2 MB). Free memory was 60.1 MB in the beginning and 108.4 MB in the end (delta: -48.3 MB). Peak memory consumption was 21.5 MB. Max. memory is 16.1 GB. [2020-12-07 17:13:11,507 INFO L168 Benchmark]: Witness Printer took 378.63 ms. Allocated memory is still 180.4 MB. Free memory was 108.4 MB in the beginning and 33.4 MB in the end (delta: 75.0 MB). Peak memory consumption was 73.4 MB. Max. memory is 16.1 GB. [2020-12-07 17:13:11,509 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 46.1 MB. Free memory was 26.9 MB in the beginning and 26.8 MB in the end (delta: 69.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 3468.98 ms. Allocated memory was 46.1 MB in the beginning and 111.1 MB in the end (delta: 65.0 MB). Free memory was 25.3 MB in the beginning and 60.3 MB in the end (delta: -35.0 MB). Peak memory consumption was 79.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 219.90 ms. Allocated memory is still 111.1 MB. Free memory was 60.3 MB in the beginning and 50.9 MB in the end (delta: 9.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 100.03 ms. Allocated memory is still 111.1 MB. Free memory was 50.9 MB in the beginning and 45.6 MB in the end (delta: 5.3 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1201.57 ms. Allocated memory is still 111.1 MB. Free memory was 45.6 MB in the beginning and 60.9 MB in the end (delta: -15.3 MB). Peak memory consumption was 37.3 MB. Max. memory is 16.1 GB. * TraceAbstraction took 3481.24 ms. Allocated memory was 111.1 MB in the beginning and 180.4 MB in the end (delta: 69.2 MB). Free memory was 60.1 MB in the beginning and 108.4 MB in the end (delta: -48.3 MB). Peak memory consumption was 21.5 MB. Max. memory is 16.1 GB. * Witness Printer took 378.63 ms. Allocated memory is still 180.4 MB. Free memory was 108.4 MB in the beginning and 33.4 MB in the end (delta: 75.0 MB). Peak memory consumption was 73.4 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 223]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 223]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 223]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 223]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 223]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 5 specifications checked. All of them hold - InvariantResult [Line: 261]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 6890]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 6253]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 6253]: Loop Invariant Derived loop invariant: str_a == 0 && str_a == 0 - InvariantResult [Line: 6807]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 6807]: Loop Invariant Derived loop invariant: str_a == 0 && str_a == 0 - InvariantResult [Line: 6890]: Loop Invariant Derived loop invariant: str_a == 0 && str_a == 0 - InvariantResult [Line: 6253]: Loop Invariant Derived loop invariant: str_a == 0 && str_a == 0 - InvariantResult [Line: 266]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 266]: Loop Invariant Derived loop invariant: str_a == 0 && str_a == 0 - InvariantResult [Line: 7412]: Loop Invariant Derived loop invariant: str_a == 0 && str_a == 0 - InvariantResult [Line: 8019]: Loop Invariant Derived loop invariant: str_a == 0 && str_a == 0 - InvariantResult [Line: 266]: Loop Invariant Derived loop invariant: max_size == 16 - InvariantResult [Line: 6883]: Loop Invariant Derived loop invariant: str_a == 0 && str_a == 0 - InvariantResult [Line: 8923]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 261]: Loop Invariant Derived loop invariant: str_a == 0 && str_a == 0 - InvariantResult [Line: 6801]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 6801]: Loop Invariant Derived loop invariant: str_a == 0 && str_a == 0 - InvariantResult [Line: 261]: Loop Invariant Derived loop invariant: str_a == 0 && str_a == 0 - InvariantResult [Line: 6253]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 6883]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 261]: Loop Invariant Derived loop invariant: 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 98 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.3s, OverallIterations: 7, TraceHistogramMax: 1, AutomataDifference: 1.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 600 SDtfs, 1493 SDslu, 1240 SDs, 0 SdLazy, 358 SolverSat, 60 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 81 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=101occurred in iteration=5, 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, 7 MinimizatonAttempts, 8 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 22 LocationsWithAnnotation, 22 PreInvPairs, 34 NumberOfFragments, 90 HoareAnnotationTreeSize, 22 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 22 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 237 NumberOfCodeBlocks, 237 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 230 ConstructedInterpolants, 0 QuantifiedInterpolants, 15875 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 0/0 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 RESULT: Ultimate proved your program to be correct! Received shutdown request...