./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_from_array_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 53f42b1a Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b9dff9f-ef83-4bf3-962e-cb6ca81039a3/bin/uautomizer-DQz5hQGWxF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b9dff9f-ef83-4bf3-962e-cb6ca81039a3/bin/uautomizer-DQz5hQGWxF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b9dff9f-ef83-4bf3-962e-cb6ca81039a3/bin/uautomizer-DQz5hQGWxF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b9dff9f-ef83-4bf3-962e-cb6ca81039a3/bin/uautomizer-DQz5hQGWxF/config/AutomizerReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_from_array_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b9dff9f-ef83-4bf3-962e-cb6ca81039a3/bin/uautomizer-DQz5hQGWxF/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b9dff9f-ef83-4bf3-962e-cb6ca81039a3/bin/uautomizer-DQz5hQGWxF --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 704abadf4a8c9a8af61418181b8ae91b3e3da2fe96f0fde7751e748b781a863c --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-20 06:02:28,281 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-20 06:02:28,284 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-20 06:02:28,338 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-20 06:02:28,339 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-20 06:02:28,345 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-20 06:02:28,348 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-20 06:02:28,353 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-20 06:02:28,356 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-20 06:02:28,364 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-20 06:02:28,365 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-20 06:02:28,367 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-20 06:02:28,367 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-20 06:02:28,370 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-20 06:02:28,373 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-20 06:02:28,378 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-20 06:02:28,380 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-20 06:02:28,381 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-20 06:02:28,386 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-20 06:02:28,394 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-20 06:02:28,396 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-20 06:02:28,398 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-20 06:02:28,401 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-20 06:02:28,402 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-20 06:02:28,406 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-20 06:02:28,407 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-20 06:02:28,407 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-20 06:02:28,409 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-20 06:02:28,410 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-20 06:02:28,412 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-20 06:02:28,412 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-20 06:02:28,413 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-20 06:02:28,415 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-20 06:02:28,417 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-20 06:02:28,418 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-20 06:02:28,419 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-20 06:02:28,420 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-20 06:02:28,420 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-20 06:02:28,420 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-20 06:02:28,421 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-20 06:02:28,422 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-20 06:02:28,423 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b9dff9f-ef83-4bf3-962e-cb6ca81039a3/bin/uautomizer-DQz5hQGWxF/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-20 06:02:28,468 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-20 06:02:28,468 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-20 06:02:28,469 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-20 06:02:28,469 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-20 06:02:28,470 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-20 06:02:28,470 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-20 06:02:28,471 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-20 06:02:28,472 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-20 06:02:28,472 INFO L138 SettingsManager]: * Use SBE=true [2021-11-20 06:02:28,472 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-20 06:02:28,473 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-20 06:02:28,474 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-20 06:02:28,474 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-20 06:02:28,474 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-20 06:02:28,474 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-20 06:02:28,474 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-20 06:02:28,475 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-20 06:02:28,475 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-20 06:02:28,475 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-20 06:02:28,475 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-20 06:02:28,476 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-20 06:02:28,476 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 06:02:28,476 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-20 06:02:28,476 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-20 06:02:28,476 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-20 06:02:28,477 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-20 06:02:28,477 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-20 06:02:28,477 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-20 06:02:28,477 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-20 06:02:28,479 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-20 06:02:28,479 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-20 06:02:28,480 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b9dff9f-ef83-4bf3-962e-cb6ca81039a3/bin/uautomizer-DQz5hQGWxF/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b9dff9f-ef83-4bf3-962e-cb6ca81039a3/bin/uautomizer-DQz5hQGWxF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 704abadf4a8c9a8af61418181b8ae91b3e3da2fe96f0fde7751e748b781a863c [2021-11-20 06:02:28,749 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-20 06:02:28,776 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-20 06:02:28,779 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-20 06:02:28,780 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-20 06:02:28,782 INFO L275 PluginConnector]: CDTParser initialized [2021-11-20 06:02:28,784 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b9dff9f-ef83-4bf3-962e-cb6ca81039a3/bin/uautomizer-DQz5hQGWxF/../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_from_array_harness.i [2021-11-20 06:02:28,878 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b9dff9f-ef83-4bf3-962e-cb6ca81039a3/bin/uautomizer-DQz5hQGWxF/data/d4050f021/fd78a3ecdbfa48a3ba9d86e57b7f61e6/FLAG1f2d99cb0 [2021-11-20 06:02:29,799 INFO L306 CDTParser]: Found 1 translation units. [2021-11-20 06:02:29,800 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b9dff9f-ef83-4bf3-962e-cb6ca81039a3/sv-benchmarks/c/aws-c-common/aws_byte_cursor_from_array_harness.i [2021-11-20 06:02:29,873 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b9dff9f-ef83-4bf3-962e-cb6ca81039a3/bin/uautomizer-DQz5hQGWxF/data/d4050f021/fd78a3ecdbfa48a3ba9d86e57b7f61e6/FLAG1f2d99cb0 [2021-11-20 06:02:30,275 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b9dff9f-ef83-4bf3-962e-cb6ca81039a3/bin/uautomizer-DQz5hQGWxF/data/d4050f021/fd78a3ecdbfa48a3ba9d86e57b7f61e6 [2021-11-20 06:02:30,277 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-20 06:02:30,279 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-20 06:02:30,288 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-20 06:02:30,288 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-20 06:02:30,292 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-20 06:02:30,293 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 06:02:30" (1/1) ... [2021-11-20 06:02:30,294 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@b97f05 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:02:30, skipping insertion in model container [2021-11-20 06:02:30,294 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 06:02:30" (1/1) ... [2021-11-20 06:02:30,301 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-20 06:02:30,442 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-20 06:02:30,745 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b9dff9f-ef83-4bf3-962e-cb6ca81039a3/sv-benchmarks/c/aws-c-common/aws_byte_cursor_from_array_harness.i[4500,4513] [2021-11-20 06:02:30,751 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b9dff9f-ef83-4bf3-962e-cb6ca81039a3/sv-benchmarks/c/aws-c-common/aws_byte_cursor_from_array_harness.i[4560,4573] [2021-11-20 06:02:31,703 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 06:02:31,704 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 06:02:31,705 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 06:02:31,706 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 06:02:31,707 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 06:02:31,723 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 06:02:31,724 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 06:02:31,726 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 06:02:31,727 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 06:02:32,183 WARN L610 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-20 06:02:32,185 WARN L610 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-20 06:02:32,186 WARN L610 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-20 06:02:32,187 WARN L610 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-20 06:02:32,188 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-20 06:02:32,189 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-20 06:02:32,190 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-20 06:02:32,190 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-20 06:02:32,191 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-20 06:02:32,191 WARN L610 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-20 06:02:32,382 WARN L610 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-20 06:02:32,475 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 06:02:32,480 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 06:02:32,596 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 06:02:32,706 INFO L203 MainTranslator]: Completed pre-run [2021-11-20 06:02:32,720 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b9dff9f-ef83-4bf3-962e-cb6ca81039a3/sv-benchmarks/c/aws-c-common/aws_byte_cursor_from_array_harness.i[4500,4513] [2021-11-20 06:02:32,721 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b9dff9f-ef83-4bf3-962e-cb6ca81039a3/sv-benchmarks/c/aws-c-common/aws_byte_cursor_from_array_harness.i[4560,4573] [2021-11-20 06:02:32,758 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 06:02:32,759 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 06:02:32,760 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 06:02:32,760 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 06:02:32,761 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 06:02:32,768 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 06:02:32,780 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 06:02:32,781 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 06:02:32,782 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 06:02:32,831 WARN L610 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-20 06:02:32,832 WARN L610 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-20 06:02:32,833 WARN L610 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-20 06:02:32,834 WARN L610 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-20 06:02:32,835 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-20 06:02:32,836 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-20 06:02:32,837 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-20 06:02:32,840 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-20 06:02:32,841 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-20 06:02:32,841 WARN L610 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-20 06:02:32,871 WARN L610 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-20 06:02:32,927 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 06:02:32,929 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 06:02:33,010 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 06:02:33,309 INFO L208 MainTranslator]: Completed translation [2021-11-20 06:02:33,310 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:02:33 WrapperNode [2021-11-20 06:02:33,310 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-20 06:02:33,311 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-20 06:02:33,311 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-20 06:02:33,311 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-20 06:02:33,319 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:02:33" (1/1) ... [2021-11-20 06:02:33,444 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:02:33" (1/1) ... [2021-11-20 06:02:33,554 INFO L137 Inliner]: procedures = 690, calls = 2609, calls flagged for inlining = 59, calls inlined = 5, statements flattened = 777 [2021-11-20 06:02:33,555 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-20 06:02:33,555 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-20 06:02:33,556 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-20 06:02:33,556 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-20 06:02:33,567 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:02:33" (1/1) ... [2021-11-20 06:02:33,568 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:02:33" (1/1) ... [2021-11-20 06:02:33,585 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:02:33" (1/1) ... [2021-11-20 06:02:33,588 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:02:33" (1/1) ... [2021-11-20 06:02:33,657 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:02:33" (1/1) ... [2021-11-20 06:02:33,660 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:02:33" (1/1) ... [2021-11-20 06:02:33,668 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:02:33" (1/1) ... [2021-11-20 06:02:33,679 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-20 06:02:33,680 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-20 06:02:33,680 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-20 06:02:33,681 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-20 06:02:33,681 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:02:33" (1/1) ... [2021-11-20 06:02:33,689 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 06:02:33,701 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b9dff9f-ef83-4bf3-962e-cb6ca81039a3/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:02:33,727 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b9dff9f-ef83-4bf3-962e-cb6ca81039a3/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-20 06:02:33,754 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b9dff9f-ef83-4bf3-962e-cb6ca81039a3/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-20 06:02:33,775 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_cursor_is_valid [2021-11-20 06:02:33,775 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_cursor_is_valid [2021-11-20 06:02:33,776 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-20 06:02:33,776 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-20 06:02:33,776 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-20 06:02:33,776 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-20 06:02:33,777 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-20 06:02:33,777 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-20 06:02:33,777 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-20 06:02:33,777 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-20 06:02:33,778 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-20 06:02:33,779 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2021-11-20 06:02:33,779 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2021-11-20 06:02:33,779 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-11-20 06:02:33,780 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-11-20 06:02:33,780 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-20 06:02:33,780 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-20 06:02:33,780 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-20 06:02:33,781 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2021-11-20 06:02:33,781 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2021-11-20 06:02:33,781 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-20 06:02:33,781 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-20 06:02:34,111 INFO L236 CfgBuilder]: Building ICFG [2021-11-20 06:02:34,112 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-20 06:02:35,228 INFO L277 CfgBuilder]: Performing block encoding [2021-11-20 06:02:35,240 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-20 06:02:35,240 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-20 06:02:35,242 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 06:02:35 BoogieIcfgContainer [2021-11-20 06:02:35,243 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-20 06:02:35,244 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-20 06:02:35,245 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-20 06:02:35,249 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-20 06:02:35,249 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 06:02:30" (1/3) ... [2021-11-20 06:02:35,250 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42872e29 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 06:02:35, skipping insertion in model container [2021-11-20 06:02:35,251 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:02:33" (2/3) ... [2021-11-20 06:02:35,251 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42872e29 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 06:02:35, skipping insertion in model container [2021-11-20 06:02:35,252 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 06:02:35" (3/3) ... [2021-11-20 06:02:35,253 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_byte_cursor_from_array_harness.i [2021-11-20 06:02:35,259 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-20 06:02:35,259 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-20 06:02:35,321 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-20 06:02:35,333 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 [2021-11-20 06:02:35,333 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-20 06:02:35,365 INFO L276 IsEmpty]: Start isEmpty. Operand has 61 states, 42 states have (on average 1.2380952380952381) internal successors, (52), 43 states have internal predecessors, (52), 12 states have call successors, (12), 5 states have call predecessors, (12), 5 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2021-11-20 06:02:35,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-11-20 06:02:35,371 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:02:35,372 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-20 06:02:35,373 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:02:35,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:02:35,379 INFO L85 PathProgramCache]: Analyzing trace with hash -860547149, now seen corresponding path program 1 times [2021-11-20 06:02:35,388 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:02:35,389 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1803310843] [2021-11-20 06:02:35,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:02:35,390 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:02:35,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:02:36,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-20 06:02:36,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:02:36,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:02:36,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:02:36,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-11-20 06:02:36,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:02:36,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-11-20 06:02:36,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:02:36,080 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-20 06:02:36,081 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:02:36,081 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1803310843] [2021-11-20 06:02:36,081 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1803310843] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:02:36,082 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:02:36,082 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-20 06:02:36,083 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1377700818] [2021-11-20 06:02:36,084 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:02:36,088 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 06:02:36,088 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:02:36,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 06:02:36,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 06:02:36,117 INFO L87 Difference]: Start difference. First operand has 61 states, 42 states have (on average 1.2380952380952381) internal successors, (52), 43 states have internal predecessors, (52), 12 states have call successors, (12), 5 states have call predecessors, (12), 5 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 2 states have internal predecessors, (17), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2021-11-20 06:02:36,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:02:36,320 INFO L93 Difference]: Finished difference Result 117 states and 154 transitions. [2021-11-20 06:02:36,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 06:02:36,324 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 2 states have internal predecessors, (17), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 29 [2021-11-20 06:02:36,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:02:36,333 INFO L225 Difference]: With dead ends: 117 [2021-11-20 06:02:36,338 INFO L226 Difference]: Without dead ends: 54 [2021-11-20 06:02:36,344 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 06:02:36,351 INFO L933 BasicCegarLoop]: 72 mSDtfsCounter, 28 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 89 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-20 06:02:36,354 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [29 Valid, 89 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-20 06:02:36,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2021-11-20 06:02:36,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2021-11-20 06:02:36,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 36 states have (on average 1.1666666666666667) internal successors, (42), 37 states have internal predecessors, (42), 12 states have call successors, (12), 5 states have call predecessors, (12), 5 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2021-11-20 06:02:36,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 65 transitions. [2021-11-20 06:02:36,416 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 65 transitions. Word has length 29 [2021-11-20 06:02:36,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:02:36,416 INFO L470 AbstractCegarLoop]: Abstraction has 54 states and 65 transitions. [2021-11-20 06:02:36,417 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 2 states have internal predecessors, (17), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2021-11-20 06:02:36,417 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 65 transitions. [2021-11-20 06:02:36,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-11-20 06:02:36,436 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:02:36,437 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-20 06:02:36,437 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-20 06:02:36,437 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:02:36,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:02:36,440 INFO L85 PathProgramCache]: Analyzing trace with hash 617864563, now seen corresponding path program 1 times [2021-11-20 06:02:36,440 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:02:36,440 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [570802635] [2021-11-20 06:02:36,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:02:36,440 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:02:36,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:02:36,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-20 06:02:36,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:02:36,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:02:36,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:02:36,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-11-20 06:02:36,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:02:36,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-11-20 06:02:36,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:02:36,812 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-20 06:02:36,813 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:02:36,813 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [570802635] [2021-11-20 06:02:36,813 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [570802635] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:02:36,813 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:02:36,814 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-20 06:02:36,814 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1215700692] [2021-11-20 06:02:36,814 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:02:36,815 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-20 06:02:36,816 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:02:36,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-20 06:02:36,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-11-20 06:02:36,817 INFO L87 Difference]: Start difference. First operand 54 states and 65 transitions. Second operand has 6 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-11-20 06:02:37,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:02:37,100 INFO L93 Difference]: Finished difference Result 99 states and 119 transitions. [2021-11-20 06:02:37,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-20 06:02:37,101 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 29 [2021-11-20 06:02:37,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:02:37,106 INFO L225 Difference]: With dead ends: 99 [2021-11-20 06:02:37,106 INFO L226 Difference]: Without dead ends: 57 [2021-11-20 06:02:37,107 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2021-11-20 06:02:37,109 INFO L933 BasicCegarLoop]: 59 mSDtfsCounter, 45 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 131 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-20 06:02:37,112 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [48 Valid, 131 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-20 06:02:37,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2021-11-20 06:02:37,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57. [2021-11-20 06:02:37,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 38 states have (on average 1.1578947368421053) internal successors, (44), 40 states have internal predecessors, (44), 12 states have call successors, (12), 5 states have call predecessors, (12), 6 states have return successors, (12), 11 states have call predecessors, (12), 11 states have call successors, (12) [2021-11-20 06:02:37,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 68 transitions. [2021-11-20 06:02:37,142 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 68 transitions. Word has length 29 [2021-11-20 06:02:37,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:02:37,143 INFO L470 AbstractCegarLoop]: Abstraction has 57 states and 68 transitions. [2021-11-20 06:02:37,143 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-11-20 06:02:37,145 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 68 transitions. [2021-11-20 06:02:37,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-11-20 06:02:37,147 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:02:37,147 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-20 06:02:37,147 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-20 06:02:37,148 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:02:37,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:02:37,148 INFO L85 PathProgramCache]: Analyzing trace with hash 633470424, now seen corresponding path program 1 times [2021-11-20 06:02:37,149 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:02:37,149 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2143812021] [2021-11-20 06:02:37,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:02:37,149 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:02:37,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:02:37,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-20 06:02:37,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:02:37,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:02:37,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:02:37,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-11-20 06:02:37,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:02:37,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-11-20 06:02:37,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:02:37,634 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-20 06:02:37,634 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:02:37,634 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2143812021] [2021-11-20 06:02:37,634 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2143812021] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:02:37,635 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:02:37,635 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-20 06:02:37,635 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2051807645] [2021-11-20 06:02:37,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:02:37,636 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-20 06:02:37,637 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:02:37,637 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-20 06:02:37,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-11-20 06:02:37,640 INFO L87 Difference]: Start difference. First operand 57 states and 68 transitions. Second operand has 9 states, 8 states have (on average 2.375) internal successors, (19), 6 states have internal predecessors, (19), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2021-11-20 06:02:37,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:02:37,948 INFO L93 Difference]: Finished difference Result 69 states and 81 transitions. [2021-11-20 06:02:37,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-20 06:02:37,949 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 2.375) internal successors, (19), 6 states have internal predecessors, (19), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 31 [2021-11-20 06:02:37,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:02:37,951 INFO L225 Difference]: With dead ends: 69 [2021-11-20 06:02:37,951 INFO L226 Difference]: Without dead ends: 67 [2021-11-20 06:02:37,952 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=143, Unknown=0, NotChecked=0, Total=182 [2021-11-20 06:02:37,953 INFO L933 BasicCegarLoop]: 62 mSDtfsCounter, 47 mSDsluCounter, 225 mSDsCounter, 0 mSdLazyCounter, 206 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 287 SdHoareTripleChecker+Invalid, 221 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 206 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-20 06:02:37,953 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [49 Valid, 287 Invalid, 221 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 206 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-20 06:02:37,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2021-11-20 06:02:37,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 66. [2021-11-20 06:02:37,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 44 states have (on average 1.1363636363636365) internal successors, (50), 47 states have internal predecessors, (50), 13 states have call successors, (13), 6 states have call predecessors, (13), 8 states have return successors, (15), 12 states have call predecessors, (15), 12 states have call successors, (15) [2021-11-20 06:02:37,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 78 transitions. [2021-11-20 06:02:37,964 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 78 transitions. Word has length 31 [2021-11-20 06:02:37,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:02:37,964 INFO L470 AbstractCegarLoop]: Abstraction has 66 states and 78 transitions. [2021-11-20 06:02:37,964 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 2.375) internal successors, (19), 6 states have internal predecessors, (19), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2021-11-20 06:02:37,965 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 78 transitions. [2021-11-20 06:02:37,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-11-20 06:02:37,966 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:02:37,966 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-20 06:02:37,967 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-20 06:02:37,967 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:02:37,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:02:37,968 INFO L85 PathProgramCache]: Analyzing trace with hash -843890528, now seen corresponding path program 1 times [2021-11-20 06:02:37,968 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:02:37,968 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [770118945] [2021-11-20 06:02:37,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:02:37,968 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:02:38,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:02:38,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-20 06:02:38,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:02:38,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:02:38,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:02:38,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-11-20 06:02:38,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:02:38,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-11-20 06:02:38,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:02:38,888 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-20 06:02:38,888 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:02:38,888 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [770118945] [2021-11-20 06:02:38,889 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [770118945] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:02:38,889 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:02:38,889 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-11-20 06:02:38,889 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [42973615] [2021-11-20 06:02:38,889 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:02:38,891 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-20 06:02:38,891 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:02:38,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-20 06:02:38,891 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2021-11-20 06:02:38,893 INFO L87 Difference]: Start difference. First operand 66 states and 78 transitions. Second operand has 11 states, 10 states have (on average 2.3) internal successors, (23), 9 states have internal predecessors, (23), 4 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2021-11-20 06:02:39,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:02:39,370 INFO L93 Difference]: Finished difference Result 127 states and 150 transitions. [2021-11-20 06:02:39,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-20 06:02:39,371 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.3) internal successors, (23), 9 states have internal predecessors, (23), 4 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) Word has length 35 [2021-11-20 06:02:39,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:02:39,375 INFO L225 Difference]: With dead ends: 127 [2021-11-20 06:02:39,375 INFO L226 Difference]: Without dead ends: 78 [2021-11-20 06:02:39,378 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=61, Invalid=211, Unknown=0, NotChecked=0, Total=272 [2021-11-20 06:02:39,380 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 86 mSDsluCounter, 208 mSDsCounter, 0 mSdLazyCounter, 332 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 262 SdHoareTripleChecker+Invalid, 349 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 332 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-20 06:02:39,381 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [93 Valid, 262 Invalid, 349 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 332 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-20 06:02:39,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2021-11-20 06:02:39,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 70. [2021-11-20 06:02:39,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 48 states have (on average 1.1458333333333333) internal successors, (55), 51 states have internal predecessors, (55), 13 states have call successors, (13), 6 states have call predecessors, (13), 8 states have return successors, (15), 12 states have call predecessors, (15), 12 states have call successors, (15) [2021-11-20 06:02:39,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 83 transitions. [2021-11-20 06:02:39,395 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 83 transitions. Word has length 35 [2021-11-20 06:02:39,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:02:39,395 INFO L470 AbstractCegarLoop]: Abstraction has 70 states and 83 transitions. [2021-11-20 06:02:39,397 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 2.3) internal successors, (23), 9 states have internal predecessors, (23), 4 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2021-11-20 06:02:39,398 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 83 transitions. [2021-11-20 06:02:39,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-11-20 06:02:39,401 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:02:39,401 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-20 06:02:39,401 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-20 06:02:39,401 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:02:39,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:02:39,402 INFO L85 PathProgramCache]: Analyzing trace with hash -585725090, now seen corresponding path program 1 times [2021-11-20 06:02:39,403 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:02:39,403 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1785005763] [2021-11-20 06:02:39,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:02:39,403 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:02:39,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:02:39,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-20 06:02:39,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:02:39,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:02:39,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:02:39,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-11-20 06:02:39,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:02:39,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-11-20 06:02:39,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:02:39,762 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-20 06:02:39,762 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:02:39,762 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1785005763] [2021-11-20 06:02:39,762 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1785005763] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:02:39,763 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:02:39,763 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-20 06:02:39,763 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1308398431] [2021-11-20 06:02:39,763 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:02:39,764 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-20 06:02:39,764 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:02:39,764 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-20 06:02:39,764 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-20 06:02:39,765 INFO L87 Difference]: Start difference. First operand 70 states and 83 transitions. Second operand has 5 states, 5 states have (on average 4.6) internal successors, (23), 4 states have internal predecessors, (23), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2021-11-20 06:02:39,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:02:39,959 INFO L93 Difference]: Finished difference Result 121 states and 144 transitions. [2021-11-20 06:02:39,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-20 06:02:39,960 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.6) internal successors, (23), 4 states have internal predecessors, (23), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 35 [2021-11-20 06:02:39,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:02:39,961 INFO L225 Difference]: With dead ends: 121 [2021-11-20 06:02:39,961 INFO L226 Difference]: Without dead ends: 68 [2021-11-20 06:02:39,962 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-20 06:02:39,962 INFO L933 BasicCegarLoop]: 57 mSDtfsCounter, 36 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 132 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-20 06:02:39,963 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [37 Valid, 132 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-20 06:02:39,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2021-11-20 06:02:39,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2021-11-20 06:02:39,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 46 states have (on average 1.108695652173913) internal successors, (51), 49 states have internal predecessors, (51), 13 states have call successors, (13), 6 states have call predecessors, (13), 8 states have return successors, (15), 12 states have call predecessors, (15), 12 states have call successors, (15) [2021-11-20 06:02:39,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 79 transitions. [2021-11-20 06:02:39,981 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 79 transitions. Word has length 35 [2021-11-20 06:02:39,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:02:39,982 INFO L470 AbstractCegarLoop]: Abstraction has 68 states and 79 transitions. [2021-11-20 06:02:39,983 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.6) internal successors, (23), 4 states have internal predecessors, (23), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2021-11-20 06:02:39,983 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 79 transitions. [2021-11-20 06:02:39,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-11-20 06:02:39,987 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:02:39,988 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-20 06:02:39,988 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-20 06:02:39,988 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:02:39,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:02:39,989 INFO L85 PathProgramCache]: Analyzing trace with hash 1626961765, now seen corresponding path program 1 times [2021-11-20 06:02:39,989 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:02:39,989 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1278417591] [2021-11-20 06:02:39,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:02:39,990 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:02:40,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:02:40,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-20 06:02:40,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:02:40,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:02:40,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:02:40,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-11-20 06:02:40,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:02:40,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-11-20 06:02:40,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:02:40,343 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-20 06:02:40,343 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:02:40,343 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1278417591] [2021-11-20 06:02:40,343 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1278417591] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:02:40,343 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:02:40,343 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-11-20 06:02:40,345 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2089066696] [2021-11-20 06:02:40,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:02:40,346 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-20 06:02:40,346 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:02:40,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-20 06:02:40,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2021-11-20 06:02:40,347 INFO L87 Difference]: Start difference. First operand 68 states and 79 transitions. Second operand has 11 states, 10 states have (on average 2.5) internal successors, (25), 8 states have internal predecessors, (25), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2021-11-20 06:02:40,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:02:40,748 INFO L93 Difference]: Finished difference Result 82 states and 94 transitions. [2021-11-20 06:02:40,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-20 06:02:40,750 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.5) internal successors, (25), 8 states have internal predecessors, (25), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 37 [2021-11-20 06:02:40,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:02:40,751 INFO L225 Difference]: With dead ends: 82 [2021-11-20 06:02:40,751 INFO L226 Difference]: Without dead ends: 80 [2021-11-20 06:02:40,752 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=68, Invalid=274, Unknown=0, NotChecked=0, Total=342 [2021-11-20 06:02:40,753 INFO L933 BasicCegarLoop]: 60 mSDtfsCounter, 49 mSDsluCounter, 299 mSDsCounter, 0 mSdLazyCounter, 278 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 359 SdHoareTripleChecker+Invalid, 300 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 278 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-20 06:02:40,753 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [51 Valid, 359 Invalid, 300 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 278 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-20 06:02:40,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2021-11-20 06:02:40,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 70. [2021-11-20 06:02:40,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 48 states have (on average 1.1041666666666667) internal successors, (53), 51 states have internal predecessors, (53), 13 states have call successors, (13), 6 states have call predecessors, (13), 8 states have return successors, (15), 12 states have call predecessors, (15), 12 states have call successors, (15) [2021-11-20 06:02:40,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 81 transitions. [2021-11-20 06:02:40,762 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 81 transitions. Word has length 37 [2021-11-20 06:02:40,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:02:40,762 INFO L470 AbstractCegarLoop]: Abstraction has 70 states and 81 transitions. [2021-11-20 06:02:40,762 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 2.5) internal successors, (25), 8 states have internal predecessors, (25), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2021-11-20 06:02:40,763 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 81 transitions. [2021-11-20 06:02:40,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-11-20 06:02:40,763 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:02:40,764 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-20 06:02:40,764 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-20 06:02:40,766 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:02:40,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:02:40,766 INFO L85 PathProgramCache]: Analyzing trace with hash -1966940953, now seen corresponding path program 1 times [2021-11-20 06:02:40,766 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:02:40,767 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [32245416] [2021-11-20 06:02:40,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:02:40,767 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:02:40,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:02:40,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-20 06:02:40,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:02:41,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:02:41,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:02:41,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-11-20 06:02:41,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:02:41,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-11-20 06:02:41,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:02:41,203 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-20 06:02:41,203 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:02:41,203 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [32245416] [2021-11-20 06:02:41,203 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [32245416] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:02:41,204 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:02:41,204 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2021-11-20 06:02:41,204 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [465313870] [2021-11-20 06:02:41,204 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:02:41,205 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-11-20 06:02:41,205 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:02:41,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-11-20 06:02:41,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2021-11-20 06:02:41,206 INFO L87 Difference]: Start difference. First operand 70 states and 81 transitions. Second operand has 14 states, 13 states have (on average 1.9230769230769231) internal successors, (25), 11 states have internal predecessors, (25), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2021-11-20 06:02:41,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:02:41,778 INFO L93 Difference]: Finished difference Result 81 states and 92 transitions. [2021-11-20 06:02:41,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-11-20 06:02:41,778 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 1.9230769230769231) internal successors, (25), 11 states have internal predecessors, (25), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 37 [2021-11-20 06:02:41,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:02:41,780 INFO L225 Difference]: With dead ends: 81 [2021-11-20 06:02:41,780 INFO L226 Difference]: Without dead ends: 79 [2021-11-20 06:02:41,780 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=123, Invalid=527, Unknown=0, NotChecked=0, Total=650 [2021-11-20 06:02:41,781 INFO L933 BasicCegarLoop]: 59 mSDtfsCounter, 66 mSDsluCounter, 365 mSDsCounter, 0 mSdLazyCounter, 370 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 424 SdHoareTripleChecker+Invalid, 399 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 370 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-20 06:02:41,782 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [68 Valid, 424 Invalid, 399 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 370 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-20 06:02:41,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2021-11-20 06:02:41,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 63. [2021-11-20 06:02:41,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 43 states have (on average 1.1162790697674418) internal successors, (48), 45 states have internal predecessors, (48), 12 states have call successors, (12), 6 states have call predecessors, (12), 7 states have return successors, (12), 11 states have call predecessors, (12), 11 states have call successors, (12) [2021-11-20 06:02:41,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 72 transitions. [2021-11-20 06:02:41,789 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 72 transitions. Word has length 37 [2021-11-20 06:02:41,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:02:41,789 INFO L470 AbstractCegarLoop]: Abstraction has 63 states and 72 transitions. [2021-11-20 06:02:41,789 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 1.9230769230769231) internal successors, (25), 11 states have internal predecessors, (25), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2021-11-20 06:02:41,790 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 72 transitions. [2021-11-20 06:02:41,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-11-20 06:02:41,791 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:02:41,791 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-20 06:02:41,791 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-20 06:02:41,792 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:02:41,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:02:41,792 INFO L85 PathProgramCache]: Analyzing trace with hash -1038585084, now seen corresponding path program 1 times [2021-11-20 06:02:41,793 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:02:41,793 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2136517660] [2021-11-20 06:02:41,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:02:41,793 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:02:41,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:02:41,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-20 06:02:41,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:02:41,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:02:41,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:02:41,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-11-20 06:02:41,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:02:41,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-11-20 06:02:41,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:02:41,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-11-20 06:02:41,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:02:41,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-20 06:02:41,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:02:42,029 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-20 06:02:42,030 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:02:42,030 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2136517660] [2021-11-20 06:02:42,030 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2136517660] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:02:42,030 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:02:42,031 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-20 06:02:42,031 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [370879754] [2021-11-20 06:02:42,031 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:02:42,031 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-20 06:02:42,032 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:02:42,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-20 06:02:42,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-11-20 06:02:42,033 INFO L87 Difference]: Start difference. First operand 63 states and 72 transitions. Second operand has 6 states, 6 states have (on average 4.666666666666667) internal successors, (28), 5 states have internal predecessors, (28), 3 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) [2021-11-20 06:02:42,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:02:42,234 INFO L93 Difference]: Finished difference Result 91 states and 102 transitions. [2021-11-20 06:02:42,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-20 06:02:42,235 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.666666666666667) internal successors, (28), 5 states have internal predecessors, (28), 3 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) Word has length 44 [2021-11-20 06:02:42,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:02:42,236 INFO L225 Difference]: With dead ends: 91 [2021-11-20 06:02:42,236 INFO L226 Difference]: Without dead ends: 63 [2021-11-20 06:02:42,237 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2021-11-20 06:02:42,237 INFO L933 BasicCegarLoop]: 56 mSDtfsCounter, 49 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 108 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-20 06:02:42,238 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [56 Valid, 108 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-20 06:02:42,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2021-11-20 06:02:42,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63. [2021-11-20 06:02:42,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 43 states have (on average 1.0930232558139534) internal successors, (47), 45 states have internal predecessors, (47), 12 states have call successors, (12), 6 states have call predecessors, (12), 7 states have return successors, (12), 11 states have call predecessors, (12), 11 states have call successors, (12) [2021-11-20 06:02:42,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 71 transitions. [2021-11-20 06:02:42,244 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 71 transitions. Word has length 44 [2021-11-20 06:02:42,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:02:42,245 INFO L470 AbstractCegarLoop]: Abstraction has 63 states and 71 transitions. [2021-11-20 06:02:42,245 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.666666666666667) internal successors, (28), 5 states have internal predecessors, (28), 3 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) [2021-11-20 06:02:42,245 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 71 transitions. [2021-11-20 06:02:42,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-11-20 06:02:42,246 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:02:42,246 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-20 06:02:42,246 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-20 06:02:42,247 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:02:42,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:02:42,247 INFO L85 PathProgramCache]: Analyzing trace with hash -1442491607, now seen corresponding path program 1 times [2021-11-20 06:02:42,248 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:02:42,248 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2087867145] [2021-11-20 06:02:42,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:02:42,248 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:02:42,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:02:42,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-20 06:02:42,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:02:42,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:02:42,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:02:42,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-11-20 06:02:42,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:02:42,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-11-20 06:02:42,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:02:42,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-11-20 06:02:42,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:02:42,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-20 06:02:42,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:02:42,529 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-11-20 06:02:42,529 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:02:42,530 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2087867145] [2021-11-20 06:02:42,530 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2087867145] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:02:42,530 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:02:42,530 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-20 06:02:42,530 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [913760842] [2021-11-20 06:02:42,531 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:02:42,531 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-20 06:02:42,531 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:02:42,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-20 06:02:42,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-11-20 06:02:42,532 INFO L87 Difference]: Start difference. First operand 63 states and 71 transitions. Second operand has 9 states, 8 states have (on average 3.5) internal successors, (28), 6 states have internal predecessors, (28), 2 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) [2021-11-20 06:02:42,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:02:42,785 INFO L93 Difference]: Finished difference Result 75 states and 84 transitions. [2021-11-20 06:02:42,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-20 06:02:42,786 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.5) internal successors, (28), 6 states have internal predecessors, (28), 2 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) Word has length 46 [2021-11-20 06:02:42,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:02:42,787 INFO L225 Difference]: With dead ends: 75 [2021-11-20 06:02:42,787 INFO L226 Difference]: Without dead ends: 73 [2021-11-20 06:02:42,788 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=143, Unknown=0, NotChecked=0, Total=182 [2021-11-20 06:02:42,789 INFO L933 BasicCegarLoop]: 60 mSDtfsCounter, 42 mSDsluCounter, 219 mSDsCounter, 0 mSdLazyCounter, 196 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 279 SdHoareTripleChecker+Invalid, 212 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 196 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-20 06:02:42,789 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [44 Valid, 279 Invalid, 212 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 196 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-20 06:02:42,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2021-11-20 06:02:42,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 72. [2021-11-20 06:02:42,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72 states, 49 states have (on average 1.0816326530612246) internal successors, (53), 52 states have internal predecessors, (53), 13 states have call successors, (13), 7 states have call predecessors, (13), 9 states have return successors, (15), 12 states have call predecessors, (15), 12 states have call successors, (15) [2021-11-20 06:02:42,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 81 transitions. [2021-11-20 06:02:42,796 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 81 transitions. Word has length 46 [2021-11-20 06:02:42,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:02:42,796 INFO L470 AbstractCegarLoop]: Abstraction has 72 states and 81 transitions. [2021-11-20 06:02:42,796 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.5) internal successors, (28), 6 states have internal predecessors, (28), 2 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) [2021-11-20 06:02:42,797 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 81 transitions. [2021-11-20 06:02:42,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-11-20 06:02:42,797 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:02:42,798 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-20 06:02:42,798 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-20 06:02:42,799 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:02:42,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:02:42,799 INFO L85 PathProgramCache]: Analyzing trace with hash 979191153, now seen corresponding path program 1 times [2021-11-20 06:02:42,799 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:02:42,799 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [531091401] [2021-11-20 06:02:42,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:02:42,800 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:02:42,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:02:43,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-20 06:02:43,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:02:43,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:02:43,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:02:43,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-11-20 06:02:43,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:02:43,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-11-20 06:02:43,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:02:43,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-11-20 06:02:43,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:02:43,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-20 06:02:43,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:02:43,309 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 5 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-20 06:02:43,310 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:02:43,310 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [531091401] [2021-11-20 06:02:43,310 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [531091401] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 06:02:43,310 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [114849445] [2021-11-20 06:02:43,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:02:43,310 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 06:02:43,311 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b9dff9f-ef83-4bf3-962e-cb6ca81039a3/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:02:43,316 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b9dff9f-ef83-4bf3-962e-cb6ca81039a3/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 06:02:43,342 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b9dff9f-ef83-4bf3-962e-cb6ca81039a3/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-20 06:02:43,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:02:43,817 INFO L263 TraceCheckSpWp]: Trace formula consists of 2388 conjuncts, 43 conjunts are in the unsatisfiable core [2021-11-20 06:02:43,826 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 06:02:43,970 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-20 06:02:44,876 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-20 06:02:44,876 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 06:02:45,267 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [114849445] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 06:02:45,267 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-20 06:02:45,268 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 14] total 22 [2021-11-20 06:02:45,268 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1184290616] [2021-11-20 06:02:45,268 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-20 06:02:45,268 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2021-11-20 06:02:45,269 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:02:45,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-11-20 06:02:45,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=557, Unknown=0, NotChecked=0, Total=650 [2021-11-20 06:02:45,270 INFO L87 Difference]: Start difference. First operand 72 states and 81 transitions. Second operand has 22 states, 19 states have (on average 2.789473684210526) internal successors, (53), 19 states have internal predecessors, (53), 8 states have call successors, (12), 4 states have call predecessors, (12), 5 states have return successors, (10), 5 states have call predecessors, (10), 7 states have call successors, (10) [2021-11-20 06:02:46,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:02:46,050 INFO L93 Difference]: Finished difference Result 141 states and 160 transitions. [2021-11-20 06:02:46,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-11-20 06:02:46,051 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 19 states have (on average 2.789473684210526) internal successors, (53), 19 states have internal predecessors, (53), 8 states have call successors, (12), 4 states have call predecessors, (12), 5 states have return successors, (10), 5 states have call predecessors, (10), 7 states have call successors, (10) Word has length 50 [2021-11-20 06:02:46,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:02:46,053 INFO L225 Difference]: With dead ends: 141 [2021-11-20 06:02:46,053 INFO L226 Difference]: Without dead ends: 111 [2021-11-20 06:02:46,055 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 65 SyntacticMatches, 5 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 272 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=175, Invalid=1015, Unknown=0, NotChecked=0, Total=1190 [2021-11-20 06:02:46,055 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 92 mSDsluCounter, 429 mSDsCounter, 0 mSdLazyCounter, 395 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 502 SdHoareTripleChecker+Invalid, 729 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 395 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 311 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-20 06:02:46,056 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [101 Valid, 502 Invalid, 729 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 395 Invalid, 0 Unknown, 311 Unchecked, 0.4s Time] [2021-11-20 06:02:46,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2021-11-20 06:02:46,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 97. [2021-11-20 06:02:46,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 69 states have (on average 1.0869565217391304) internal successors, (75), 73 states have internal predecessors, (75), 15 states have call successors, (15), 9 states have call predecessors, (15), 12 states have return successors, (18), 14 states have call predecessors, (18), 14 states have call successors, (18) [2021-11-20 06:02:46,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 108 transitions. [2021-11-20 06:02:46,073 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 108 transitions. Word has length 50 [2021-11-20 06:02:46,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:02:46,074 INFO L470 AbstractCegarLoop]: Abstraction has 97 states and 108 transitions. [2021-11-20 06:02:46,074 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 19 states have (on average 2.789473684210526) internal successors, (53), 19 states have internal predecessors, (53), 8 states have call successors, (12), 4 states have call predecessors, (12), 5 states have return successors, (10), 5 states have call predecessors, (10), 7 states have call successors, (10) [2021-11-20 06:02:46,074 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 108 transitions. [2021-11-20 06:02:46,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-11-20 06:02:46,077 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:02:46,077 INFO L514 BasicCegarLoop]: trace histogram [3, 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] [2021-11-20 06:02:46,119 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b9dff9f-ef83-4bf3-962e-cb6ca81039a3/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-20 06:02:46,290 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b9dff9f-ef83-4bf3-962e-cb6ca81039a3/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-11-20 06:02:46,290 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:02:46,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:02:46,291 INFO L85 PathProgramCache]: Analyzing trace with hash -472877729, now seen corresponding path program 1 times [2021-11-20 06:02:46,291 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:02:46,291 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1015522444] [2021-11-20 06:02:46,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:02:46,291 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:02:46,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:02:46,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-20 06:02:46,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:02:46,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:02:46,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:02:46,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-11-20 06:02:46,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:02:46,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-11-20 06:02:46,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:02:46,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-11-20 06:02:46,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:02:46,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-20 06:02:46,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:02:46,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-11-20 06:02:46,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:02:46,792 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-20 06:02:46,792 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:02:46,792 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1015522444] [2021-11-20 06:02:46,792 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1015522444] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:02:46,793 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:02:46,793 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-20 06:02:46,793 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [867011917] [2021-11-20 06:02:46,793 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:02:46,794 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-20 06:02:46,794 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:02:46,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-20 06:02:46,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-11-20 06:02:46,795 INFO L87 Difference]: Start difference. First operand 97 states and 108 transitions. Second operand has 10 states, 9 states have (on average 2.7777777777777777) internal successors, (25), 8 states have internal predecessors, (25), 5 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) [2021-11-20 06:02:47,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:02:47,217 INFO L93 Difference]: Finished difference Result 103 states and 113 transitions. [2021-11-20 06:02:47,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-20 06:02:47,217 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.7777777777777777) internal successors, (25), 8 states have internal predecessors, (25), 5 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) Word has length 52 [2021-11-20 06:02:47,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:02:47,219 INFO L225 Difference]: With dead ends: 103 [2021-11-20 06:02:47,219 INFO L226 Difference]: Without dead ends: 101 [2021-11-20 06:02:47,219 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=49, Invalid=191, Unknown=0, NotChecked=0, Total=240 [2021-11-20 06:02:47,220 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 49 mSDsluCounter, 120 mSDsCounter, 0 mSdLazyCounter, 320 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 174 SdHoareTripleChecker+Invalid, 354 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 320 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-20 06:02:47,220 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [50 Valid, 174 Invalid, 354 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 320 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-20 06:02:47,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2021-11-20 06:02:47,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 101. [2021-11-20 06:02:47,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 72 states have (on average 1.0833333333333333) internal successors, (78), 76 states have internal predecessors, (78), 15 states have call successors, (15), 10 states have call predecessors, (15), 13 states have return successors, (18), 14 states have call predecessors, (18), 14 states have call successors, (18) [2021-11-20 06:02:47,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 111 transitions. [2021-11-20 06:02:47,230 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 111 transitions. Word has length 52 [2021-11-20 06:02:47,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:02:47,230 INFO L470 AbstractCegarLoop]: Abstraction has 101 states and 111 transitions. [2021-11-20 06:02:47,231 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.7777777777777777) internal successors, (25), 8 states have internal predecessors, (25), 5 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) [2021-11-20 06:02:47,231 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 111 transitions. [2021-11-20 06:02:47,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-11-20 06:02:47,232 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:02:47,232 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-20 06:02:47,232 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-20 06:02:47,232 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:02:47,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:02:47,233 INFO L85 PathProgramCache]: Analyzing trace with hash 1896049654, now seen corresponding path program 1 times [2021-11-20 06:02:47,233 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:02:47,233 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1582645808] [2021-11-20 06:02:47,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:02:47,234 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:02:47,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:02:47,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-20 06:02:47,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:02:47,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:02:47,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:02:47,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-11-20 06:02:47,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:02:47,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-11-20 06:02:47,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:02:47,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-11-20 06:02:47,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:02:47,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-20 06:02:47,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:02:47,517 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-11-20 06:02:47,518 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:02:47,518 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1582645808] [2021-11-20 06:02:47,518 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1582645808] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:02:47,518 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:02:47,518 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-11-20 06:02:47,518 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [160764798] [2021-11-20 06:02:47,519 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:02:47,519 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-20 06:02:47,519 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:02:47,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-20 06:02:47,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2021-11-20 06:02:47,520 INFO L87 Difference]: Start difference. First operand 101 states and 111 transitions. Second operand has 11 states, 10 states have (on average 3.4) internal successors, (34), 8 states have internal predecessors, (34), 2 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) [2021-11-20 06:02:47,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:02:47,852 INFO L93 Difference]: Finished difference Result 121 states and 132 transitions. [2021-11-20 06:02:47,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-20 06:02:47,852 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 3.4) internal successors, (34), 8 states have internal predecessors, (34), 2 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) Word has length 52 [2021-11-20 06:02:47,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:02:47,854 INFO L225 Difference]: With dead ends: 121 [2021-11-20 06:02:47,854 INFO L226 Difference]: Without dead ends: 119 [2021-11-20 06:02:47,854 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=68, Invalid=274, Unknown=0, NotChecked=0, Total=342 [2021-11-20 06:02:47,855 INFO L933 BasicCegarLoop]: 59 mSDtfsCounter, 46 mSDsluCounter, 291 mSDsCounter, 0 mSdLazyCounter, 273 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 350 SdHoareTripleChecker+Invalid, 296 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 273 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-20 06:02:47,855 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [48 Valid, 350 Invalid, 296 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 273 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-20 06:02:47,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2021-11-20 06:02:47,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 109. [2021-11-20 06:02:47,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 79 states have (on average 1.0759493670886076) internal successors, (85), 84 states have internal predecessors, (85), 15 states have call successors, (15), 10 states have call predecessors, (15), 14 states have return successors, (20), 14 states have call predecessors, (20), 14 states have call successors, (20) [2021-11-20 06:02:47,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 120 transitions. [2021-11-20 06:02:47,867 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 120 transitions. Word has length 52 [2021-11-20 06:02:47,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:02:47,868 INFO L470 AbstractCegarLoop]: Abstraction has 109 states and 120 transitions. [2021-11-20 06:02:47,868 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 3.4) internal successors, (34), 8 states have internal predecessors, (34), 2 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) [2021-11-20 06:02:47,868 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 120 transitions. [2021-11-20 06:02:47,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-11-20 06:02:47,869 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:02:47,869 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-20 06:02:47,869 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-20 06:02:47,869 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:02:47,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:02:47,870 INFO L85 PathProgramCache]: Analyzing trace with hash -1697853064, now seen corresponding path program 1 times [2021-11-20 06:02:47,870 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:02:47,870 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [42489170] [2021-11-20 06:02:47,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:02:47,871 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:02:47,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:02:48,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-20 06:02:48,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:02:48,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:02:48,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:02:48,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-11-20 06:02:48,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:02:48,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-11-20 06:02:48,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:02:48,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-11-20 06:02:48,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:02:48,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-20 06:02:48,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:02:48,247 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-11-20 06:02:48,247 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:02:48,248 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [42489170] [2021-11-20 06:02:48,248 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [42489170] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:02:48,248 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:02:48,248 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2021-11-20 06:02:48,248 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [241331764] [2021-11-20 06:02:48,248 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:02:48,249 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-11-20 06:02:48,249 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:02:48,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-11-20 06:02:48,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2021-11-20 06:02:48,250 INFO L87 Difference]: Start difference. First operand 109 states and 120 transitions. Second operand has 14 states, 13 states have (on average 2.6153846153846154) internal successors, (34), 11 states have internal predecessors, (34), 2 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) [2021-11-20 06:02:48,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:02:48,941 INFO L93 Difference]: Finished difference Result 121 states and 132 transitions. [2021-11-20 06:02:48,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-11-20 06:02:48,942 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.6153846153846154) internal successors, (34), 11 states have internal predecessors, (34), 2 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) Word has length 52 [2021-11-20 06:02:48,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:02:48,943 INFO L225 Difference]: With dead ends: 121 [2021-11-20 06:02:48,943 INFO L226 Difference]: Without dead ends: 119 [2021-11-20 06:02:48,944 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=123, Invalid=527, Unknown=0, NotChecked=0, Total=650 [2021-11-20 06:02:48,944 INFO L933 BasicCegarLoop]: 59 mSDtfsCounter, 63 mSDsluCounter, 366 mSDsCounter, 0 mSdLazyCounter, 366 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 425 SdHoareTripleChecker+Invalid, 397 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 366 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-20 06:02:48,945 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [65 Valid, 425 Invalid, 397 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 366 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-11-20 06:02:48,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2021-11-20 06:02:48,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 97. [2021-11-20 06:02:48,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 69 states have (on average 1.0869565217391304) internal successors, (75), 72 states have internal predecessors, (75), 15 states have call successors, (15), 10 states have call predecessors, (15), 12 states have return successors, (17), 14 states have call predecessors, (17), 14 states have call successors, (17) [2021-11-20 06:02:48,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 107 transitions. [2021-11-20 06:02:48,956 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 107 transitions. Word has length 52 [2021-11-20 06:02:48,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:02:48,956 INFO L470 AbstractCegarLoop]: Abstraction has 97 states and 107 transitions. [2021-11-20 06:02:48,957 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.6153846153846154) internal successors, (34), 11 states have internal predecessors, (34), 2 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) [2021-11-20 06:02:48,957 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 107 transitions. [2021-11-20 06:02:48,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-11-20 06:02:48,958 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:02:48,958 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-20 06:02:48,958 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-11-20 06:02:48,958 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:02:48,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:02:48,959 INFO L85 PathProgramCache]: Analyzing trace with hash 1077690052, now seen corresponding path program 1 times [2021-11-20 06:02:48,959 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:02:48,959 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2104388942] [2021-11-20 06:02:48,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:02:48,959 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:02:49,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:02:49,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-20 06:02:49,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:02:49,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:02:49,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:02:49,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-11-20 06:02:49,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:02:49,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-11-20 06:02:49,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:02:49,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-11-20 06:02:49,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:02:49,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-11-20 06:02:49,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:02:49,253 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 2 proven. 9 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-20 06:02:49,254 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:02:49,254 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2104388942] [2021-11-20 06:02:49,254 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2104388942] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 06:02:49,254 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [949263424] [2021-11-20 06:02:49,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:02:49,254 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 06:02:49,255 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b9dff9f-ef83-4bf3-962e-cb6ca81039a3/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:02:49,258 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b9dff9f-ef83-4bf3-962e-cb6ca81039a3/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 06:02:49,278 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b9dff9f-ef83-4bf3-962e-cb6ca81039a3/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-20 06:02:49,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:02:49,688 INFO L263 TraceCheckSpWp]: Trace formula consists of 2405 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-20 06:02:49,694 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 06:02:49,933 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-11-20 06:02:49,933 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-20 06:02:49,933 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [949263424] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:02:49,933 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-20 06:02:49,934 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 8 [2021-11-20 06:02:49,934 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [852694641] [2021-11-20 06:02:49,934 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:02:49,934 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-20 06:02:49,935 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:02:49,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-20 06:02:49,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-20 06:02:49,935 INFO L87 Difference]: Start difference. First operand 97 states and 107 transitions. Second operand has 5 states, 5 states have (on average 7.0) internal successors, (35), 5 states have internal predecessors, (35), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2021-11-20 06:02:50,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:02:50,121 INFO L93 Difference]: Finished difference Result 171 states and 187 transitions. [2021-11-20 06:02:50,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-20 06:02:50,122 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 5 states have internal predecessors, (35), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 56 [2021-11-20 06:02:50,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:02:50,123 INFO L225 Difference]: With dead ends: 171 [2021-11-20 06:02:50,123 INFO L226 Difference]: Without dead ends: 101 [2021-11-20 06:02:50,123 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 69 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2021-11-20 06:02:50,124 INFO L933 BasicCegarLoop]: 61 mSDtfsCounter, 15 mSDsluCounter, 134 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 195 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 18 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-20 06:02:50,125 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 195 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 33 Invalid, 0 Unknown, 18 Unchecked, 0.1s Time] [2021-11-20 06:02:50,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2021-11-20 06:02:50,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 97. [2021-11-20 06:02:50,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 69 states have (on average 1.0579710144927537) internal successors, (73), 72 states have internal predecessors, (73), 15 states have call successors, (15), 10 states have call predecessors, (15), 12 states have return successors, (17), 14 states have call predecessors, (17), 14 states have call successors, (17) [2021-11-20 06:02:50,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 105 transitions. [2021-11-20 06:02:50,160 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 105 transitions. Word has length 56 [2021-11-20 06:02:50,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:02:50,161 INFO L470 AbstractCegarLoop]: Abstraction has 97 states and 105 transitions. [2021-11-20 06:02:50,161 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 5 states have internal predecessors, (35), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2021-11-20 06:02:50,161 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 105 transitions. [2021-11-20 06:02:50,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-11-20 06:02:50,162 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:02:50,163 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-20 06:02:50,203 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b9dff9f-ef83-4bf3-962e-cb6ca81039a3/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-20 06:02:50,380 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b9dff9f-ef83-4bf3-962e-cb6ca81039a3/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2021-11-20 06:02:50,380 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:02:50,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:02:50,381 INFO L85 PathProgramCache]: Analyzing trace with hash 1100322306, now seen corresponding path program 1 times [2021-11-20 06:02:50,381 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:02:50,381 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [783080160] [2021-11-20 06:02:50,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:02:50,381 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:02:50,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:02:50,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-20 06:02:50,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:02:50,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:02:50,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:02:50,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-11-20 06:02:50,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:02:50,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-11-20 06:02:50,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:02:50,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-11-20 06:02:50,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:02:50,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-11-20 06:02:50,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:02:50,967 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-20 06:02:50,967 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:02:50,967 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [783080160] [2021-11-20 06:02:50,967 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [783080160] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:02:50,968 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:02:50,968 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-11-20 06:02:50,968 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [449745109] [2021-11-20 06:02:50,968 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:02:50,969 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-20 06:02:50,969 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:02:50,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-20 06:02:50,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2021-11-20 06:02:50,970 INFO L87 Difference]: Start difference. First operand 97 states and 105 transitions. Second operand has 13 states, 12 states have (on average 3.3333333333333335) internal successors, (40), 11 states have internal predecessors, (40), 5 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (6), 5 states have call predecessors, (6), 4 states have call successors, (6) [2021-11-20 06:02:51,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:02:51,445 INFO L93 Difference]: Finished difference Result 127 states and 135 transitions. [2021-11-20 06:02:51,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-20 06:02:51,446 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 3.3333333333333335) internal successors, (40), 11 states have internal predecessors, (40), 5 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (6), 5 states have call predecessors, (6), 4 states have call successors, (6) Word has length 56 [2021-11-20 06:02:51,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:02:51,447 INFO L225 Difference]: With dead ends: 127 [2021-11-20 06:02:51,447 INFO L226 Difference]: Without dead ends: 93 [2021-11-20 06:02:51,447 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=67, Invalid=313, Unknown=0, NotChecked=0, Total=380 [2021-11-20 06:02:51,448 INFO L933 BasicCegarLoop]: 47 mSDtfsCounter, 77 mSDsluCounter, 162 mSDsCounter, 0 mSdLazyCounter, 445 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 209 SdHoareTripleChecker+Invalid, 477 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 445 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-20 06:02:51,448 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [78 Valid, 209 Invalid, 477 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 445 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-11-20 06:02:51,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2021-11-20 06:02:51,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 91. [2021-11-20 06:02:51,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 65 states have (on average 1.0461538461538462) internal successors, (68), 67 states have internal predecessors, (68), 14 states have call successors, (14), 10 states have call predecessors, (14), 11 states have return successors, (15), 13 states have call predecessors, (15), 13 states have call successors, (15) [2021-11-20 06:02:51,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 97 transitions. [2021-11-20 06:02:51,457 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 97 transitions. Word has length 56 [2021-11-20 06:02:51,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:02:51,457 INFO L470 AbstractCegarLoop]: Abstraction has 91 states and 97 transitions. [2021-11-20 06:02:51,457 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 3.3333333333333335) internal successors, (40), 11 states have internal predecessors, (40), 5 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (6), 5 states have call predecessors, (6), 4 states have call successors, (6) [2021-11-20 06:02:51,457 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 97 transitions. [2021-11-20 06:02:51,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-11-20 06:02:51,458 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:02:51,458 INFO L514 BasicCegarLoop]: trace histogram [4, 3, 3, 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] [2021-11-20 06:02:51,459 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-11-20 06:02:51,459 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:02:51,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:02:51,459 INFO L85 PathProgramCache]: Analyzing trace with hash 237359553, now seen corresponding path program 1 times [2021-11-20 06:02:51,460 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:02:51,460 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1713118195] [2021-11-20 06:02:51,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:02:51,460 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:02:51,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:02:51,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-20 06:02:51,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:02:51,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:02:51,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:02:51,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-11-20 06:02:51,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:02:52,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-11-20 06:02:52,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:02:52,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-11-20 06:02:52,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:02:52,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-20 06:02:52,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:02:52,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-11-20 06:02:52,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:02:52,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2021-11-20 06:02:52,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:02:52,060 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2021-11-20 06:02:52,061 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:02:52,061 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1713118195] [2021-11-20 06:02:52,061 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1713118195] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:02:52,061 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:02:52,061 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-11-20 06:02:52,061 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1141188295] [2021-11-20 06:02:52,062 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:02:52,062 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-20 06:02:52,062 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:02:52,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-20 06:02:52,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2021-11-20 06:02:52,063 INFO L87 Difference]: Start difference. First operand 91 states and 97 transitions. Second operand has 12 states, 11 states have (on average 2.4545454545454546) internal successors, (27), 9 states have internal predecessors, (27), 5 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (8), 5 states have call predecessors, (8), 4 states have call successors, (8) [2021-11-20 06:02:52,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:02:52,530 INFO L93 Difference]: Finished difference Result 97 states and 102 transitions. [2021-11-20 06:02:52,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-20 06:02:52,531 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.4545454545454546) internal successors, (27), 9 states have internal predecessors, (27), 5 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (8), 5 states have call predecessors, (8), 4 states have call successors, (8) Word has length 59 [2021-11-20 06:02:52,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:02:52,533 INFO L225 Difference]: With dead ends: 97 [2021-11-20 06:02:52,533 INFO L226 Difference]: Without dead ends: 93 [2021-11-20 06:02:52,533 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=53, Invalid=253, Unknown=0, NotChecked=0, Total=306 [2021-11-20 06:02:52,534 INFO L933 BasicCegarLoop]: 50 mSDtfsCounter, 51 mSDsluCounter, 168 mSDsCounter, 0 mSdLazyCounter, 380 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 218 SdHoareTripleChecker+Invalid, 412 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 380 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-20 06:02:52,534 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [52 Valid, 218 Invalid, 412 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 380 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-11-20 06:02:52,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2021-11-20 06:02:52,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 93. [2021-11-20 06:02:52,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 67 states have (on average 1.0298507462686568) internal successors, (69), 68 states have internal predecessors, (69), 14 states have call successors, (14), 11 states have call predecessors, (14), 11 states have return successors, (15), 13 states have call predecessors, (15), 13 states have call successors, (15) [2021-11-20 06:02:52,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 98 transitions. [2021-11-20 06:02:52,544 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 98 transitions. Word has length 59 [2021-11-20 06:02:52,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:02:52,544 INFO L470 AbstractCegarLoop]: Abstraction has 93 states and 98 transitions. [2021-11-20 06:02:52,544 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 2.4545454545454546) internal successors, (27), 9 states have internal predecessors, (27), 5 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (8), 5 states have call predecessors, (8), 4 states have call successors, (8) [2021-11-20 06:02:52,545 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 98 transitions. [2021-11-20 06:02:52,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2021-11-20 06:02:52,546 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:02:52,546 INFO L514 BasicCegarLoop]: trace histogram [5, 4, 4, 3, 3, 3, 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] [2021-11-20 06:02:52,546 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-11-20 06:02:52,546 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:02:52,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:02:52,547 INFO L85 PathProgramCache]: Analyzing trace with hash 53156309, now seen corresponding path program 1 times [2021-11-20 06:02:52,547 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:02:52,547 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1527590038] [2021-11-20 06:02:52,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:02:52,548 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:02:52,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:02:52,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-20 06:02:52,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:02:52,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:02:52,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:02:52,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-11-20 06:02:52,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:02:52,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-11-20 06:02:52,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:02:52,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-11-20 06:02:52,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:02:52,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-20 06:02:52,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:02:52,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-11-20 06:02:53,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:02:53,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2021-11-20 06:02:53,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:02:53,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-11-20 06:02:53,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:02:53,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-11-20 06:02:53,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:02:53,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-20 06:02:53,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:02:53,055 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 8 proven. 6 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2021-11-20 06:02:53,055 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:02:53,055 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1527590038] [2021-11-20 06:02:53,055 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1527590038] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 06:02:53,056 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1152929954] [2021-11-20 06:02:53,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:02:53,056 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 06:02:53,056 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b9dff9f-ef83-4bf3-962e-cb6ca81039a3/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:02:53,057 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b9dff9f-ef83-4bf3-962e-cb6ca81039a3/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 06:02:53,084 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b9dff9f-ef83-4bf3-962e-cb6ca81039a3/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-20 06:02:53,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:02:53,457 INFO L263 TraceCheckSpWp]: Trace formula consists of 2462 conjuncts, 36 conjunts are in the unsatisfiable core [2021-11-20 06:02:53,467 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 06:02:53,505 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-20 06:02:54,398 INFO L354 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2021-11-20 06:02:54,398 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 38 treesize of output 18 [2021-11-20 06:02:54,482 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 17 proven. 18 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-11-20 06:02:54,482 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 06:02:56,301 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1152929954] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 06:02:56,301 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-20 06:02:56,302 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 11] total 19 [2021-11-20 06:02:56,302 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1738470480] [2021-11-20 06:02:56,302 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-20 06:02:56,302 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-11-20 06:02:56,303 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:02:56,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-11-20 06:02:56,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=367, Unknown=1, NotChecked=0, Total=420 [2021-11-20 06:02:56,304 INFO L87 Difference]: Start difference. First operand 93 states and 98 transitions. Second operand has 19 states, 17 states have (on average 3.6470588235294117) internal successors, (62), 16 states have internal predecessors, (62), 10 states have call successors, (21), 4 states have call predecessors, (21), 4 states have return successors, (19), 9 states have call predecessors, (19), 10 states have call successors, (19) [2021-11-20 06:02:57,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:02:57,242 INFO L93 Difference]: Finished difference Result 144 states and 155 transitions. [2021-11-20 06:02:57,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-11-20 06:02:57,243 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 17 states have (on average 3.6470588235294117) internal successors, (62), 16 states have internal predecessors, (62), 10 states have call successors, (21), 4 states have call predecessors, (21), 4 states have return successors, (19), 9 states have call predecessors, (19), 10 states have call successors, (19) Word has length 76 [2021-11-20 06:02:57,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:02:57,244 INFO L225 Difference]: With dead ends: 144 [2021-11-20 06:02:57,244 INFO L226 Difference]: Without dead ends: 68 [2021-11-20 06:02:57,245 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 175 GetRequests, 130 SyntacticMatches, 10 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 294 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=149, Invalid=1182, Unknown=1, NotChecked=0, Total=1332 [2021-11-20 06:02:57,246 INFO L933 BasicCegarLoop]: 62 mSDtfsCounter, 79 mSDsluCounter, 305 mSDsCounter, 0 mSdLazyCounter, 446 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 367 SdHoareTripleChecker+Invalid, 622 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 446 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 138 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-11-20 06:02:57,246 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [88 Valid, 367 Invalid, 622 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 446 Invalid, 0 Unknown, 138 Unchecked, 0.5s Time] [2021-11-20 06:02:57,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2021-11-20 06:02:57,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2021-11-20 06:02:57,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 47 states have (on average 1.0) internal successors, (47), 47 states have internal predecessors, (47), 12 states have call successors, (12), 9 states have call predecessors, (12), 8 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2021-11-20 06:02:57,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 70 transitions. [2021-11-20 06:02:57,255 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 70 transitions. Word has length 76 [2021-11-20 06:02:57,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:02:57,256 INFO L470 AbstractCegarLoop]: Abstraction has 68 states and 70 transitions. [2021-11-20 06:02:57,256 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 17 states have (on average 3.6470588235294117) internal successors, (62), 16 states have internal predecessors, (62), 10 states have call successors, (21), 4 states have call predecessors, (21), 4 states have return successors, (19), 9 states have call predecessors, (19), 10 states have call successors, (19) [2021-11-20 06:02:57,256 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 70 transitions. [2021-11-20 06:02:57,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-11-20 06:02:57,257 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:02:57,257 INFO L514 BasicCegarLoop]: trace histogram [5, 4, 4, 3, 3, 3, 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] [2021-11-20 06:02:57,308 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b9dff9f-ef83-4bf3-962e-cb6ca81039a3/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-20 06:02:57,477 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b9dff9f-ef83-4bf3-962e-cb6ca81039a3/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2021-11-20 06:02:57,477 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:02:57,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:02:57,477 INFO L85 PathProgramCache]: Analyzing trace with hash 2101457013, now seen corresponding path program 1 times [2021-11-20 06:02:57,478 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:02:57,478 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1665072541] [2021-11-20 06:02:57,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:02:57,478 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:02:58,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:02:58,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-20 06:02:58,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:02:58,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:02:58,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:02:58,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-11-20 06:02:58,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:02:58,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-11-20 06:02:58,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:02:58,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-11-20 06:02:58,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:02:58,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-11-20 06:02:58,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:02:59,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-11-20 06:02:59,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:02:59,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-11-20 06:02:59,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:02:59,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-11-20 06:02:59,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:02:59,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-11-20 06:02:59,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:02:59,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-11-20 06:02:59,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:02:59,058 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2021-11-20 06:02:59,059 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:02:59,059 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1665072541] [2021-11-20 06:02:59,059 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1665072541] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:02:59,059 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:02:59,059 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-11-20 06:02:59,060 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1300848578] [2021-11-20 06:02:59,060 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:02:59,060 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-20 06:02:59,060 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:02:59,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-20 06:02:59,061 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2021-11-20 06:02:59,061 INFO L87 Difference]: Start difference. First operand 68 states and 70 transitions. Second operand has 13 states, 12 states have (on average 3.1666666666666665) internal successors, (38), 10 states have internal predecessors, (38), 6 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (11), 6 states have call predecessors, (11), 5 states have call successors, (11) [2021-11-20 06:02:59,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:02:59,525 INFO L93 Difference]: Finished difference Result 68 states and 70 transitions. [2021-11-20 06:02:59,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-20 06:02:59,526 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 3.1666666666666665) internal successors, (38), 10 states have internal predecessors, (38), 6 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (11), 6 states have call predecessors, (11), 5 states have call successors, (11) Word has length 88 [2021-11-20 06:02:59,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:02:59,526 INFO L225 Difference]: With dead ends: 68 [2021-11-20 06:02:59,526 INFO L226 Difference]: Without dead ends: 0 [2021-11-20 06:02:59,527 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=65, Invalid=315, Unknown=0, NotChecked=0, Total=380 [2021-11-20 06:02:59,527 INFO L933 BasicCegarLoop]: 47 mSDtfsCounter, 46 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 386 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 241 SdHoareTripleChecker+Invalid, 416 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 386 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-20 06:02:59,527 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [47 Valid, 241 Invalid, 416 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 386 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-20 06:02:59,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-20 06:02:59,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-20 06:02:59,528 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) [2021-11-20 06:02:59,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-20 06:02:59,528 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 88 [2021-11-20 06:02:59,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:02:59,528 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-20 06:02:59,528 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 3.1666666666666665) internal successors, (38), 10 states have internal predecessors, (38), 6 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (11), 6 states have call predecessors, (11), 5 states have call successors, (11) [2021-11-20 06:02:59,529 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-20 06:02:59,529 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-20 06:02:59,531 INFO L764 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-20 06:02:59,532 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-11-20 06:02:59,534 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-11-20 06:03:01,046 INFO L854 garLoopResultBuilder]: At program point bounded_mallocENTRY(lines 6882 6887) the Hoare annotation is: (and (= |old(#length)| |#length|) (= |old(#valid)| |#valid|)) [2021-11-20 06:03:01,046 INFO L858 garLoopResultBuilder]: For program point bounded_mallocFINAL(lines 6882 6887) no Hoare annotation was computed. [2021-11-20 06:03:01,047 INFO L858 garLoopResultBuilder]: For program point bounded_mallocEXIT(lines 6882 6887) no Hoare annotation was computed. [2021-11-20 06:03:01,047 INFO L858 garLoopResultBuilder]: For program point L6883-1(lines 6883 6885) no Hoare annotation was computed. [2021-11-20 06:03:01,047 INFO L854 garLoopResultBuilder]: At program point L6883(lines 6883 6885) the Hoare annotation is: (and (= |old(#length)| |#length|) (= |old(#valid)| |#valid|)) [2021-11-20 06:03:01,047 INFO L858 garLoopResultBuilder]: For program point L211-2(lines 210 212) no Hoare annotation was computed. [2021-11-20 06:03:01,047 INFO L861 garLoopResultBuilder]: At program point assume_abort_if_notENTRY(lines 210 212) the Hoare annotation is: true [2021-11-20 06:03:01,047 INFO L858 garLoopResultBuilder]: For program point L211(line 211) no Hoare annotation was computed. [2021-11-20 06:03:01,048 INFO L858 garLoopResultBuilder]: For program point assume_abort_if_notEXIT(lines 210 212) no Hoare annotation was computed. [2021-11-20 06:03:01,048 INFO L858 garLoopResultBuilder]: For program point L7387(line 7387) no Hoare annotation was computed. [2021-11-20 06:03:01,048 INFO L858 garLoopResultBuilder]: For program point L7387-5(line 7387) no Hoare annotation was computed. [2021-11-20 06:03:01,048 INFO L858 garLoopResultBuilder]: For program point L7387-4(line 7387) no Hoare annotation was computed. [2021-11-20 06:03:01,048 INFO L858 garLoopResultBuilder]: For program point L7387-2(line 7387) no Hoare annotation was computed. [2021-11-20 06:03:01,048 INFO L861 garLoopResultBuilder]: At program point aws_byte_cursor_is_validENTRY(lines 7384 7388) the Hoare annotation is: true [2021-11-20 06:03:01,048 INFO L858 garLoopResultBuilder]: For program point L7387-8(line 7387) no Hoare annotation was computed. [2021-11-20 06:03:01,049 INFO L858 garLoopResultBuilder]: For program point L7387-6(line 7387) no Hoare annotation was computed. [2021-11-20 06:03:01,049 INFO L858 garLoopResultBuilder]: For program point L7387-11(line 7387) no Hoare annotation was computed. [2021-11-20 06:03:01,049 INFO L858 garLoopResultBuilder]: For program point L7387-10(line 7387) no Hoare annotation was computed. [2021-11-20 06:03:01,049 INFO L858 garLoopResultBuilder]: For program point aws_byte_cursor_is_validEXIT(lines 7384 7388) no Hoare annotation was computed. [2021-11-20 06:03:01,049 INFO L858 garLoopResultBuilder]: For program point L7386(lines 7386 7387) no Hoare annotation was computed. [2021-11-20 06:03:01,049 INFO L858 garLoopResultBuilder]: For program point L7386-2(lines 7386 7387) no Hoare annotation was computed. [2021-11-20 06:03:01,050 INFO L858 garLoopResultBuilder]: For program point aws_byte_cursor_is_validFINAL(lines 7384 7388) no Hoare annotation was computed. [2021-11-20 06:03:01,050 INFO L858 garLoopResultBuilder]: For program point nondet_uint64_tEXIT(line 266) no Hoare annotation was computed. [2021-11-20 06:03:01,050 INFO L861 garLoopResultBuilder]: At program point nondet_uint64_tENTRY(line 266) the Hoare annotation is: true [2021-11-20 06:03:01,050 INFO L858 garLoopResultBuilder]: For program point nondet_uint64_tFINAL(line 266) no Hoare annotation was computed. [2021-11-20 06:03:01,050 INFO L858 garLoopResultBuilder]: For program point L8256-2(line 8256) no Hoare annotation was computed. [2021-11-20 06:03:01,050 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-11-20 06:03:01,051 INFO L854 garLoopResultBuilder]: At program point L8256-1(line 8256) the Hoare annotation is: (let ((.cse4 (+ |ULTIMATE.start_aws_byte_cursor_from_array_~#cur~2#1.offset| 8))) (let ((.cse0 (= |ULTIMATE.start_aws_byte_cursor_from_array_harness_~length~2#1| (select (select |#memory_int| |ULTIMATE.start_aws_byte_cursor_from_array_~#cur~2#1.base|) |ULTIMATE.start_aws_byte_cursor_from_array_~#cur~2#1.offset|))) (.cse1 (<= |ULTIMATE.start_aws_byte_cursor_from_array_#t~ret1076#1| 1)) (.cse9 (select (select |#memory_$Pointer$.base| |ULTIMATE.start_aws_byte_cursor_from_array_~#cur~2#1.base|) .cse4)) (.cse2 (= |ULTIMATE.start_aws_byte_cursor_from_array_harness_~#cur~3#1.offset| 0)) (.cse3 (= |ULTIMATE.start_aws_byte_cursor_from_array_~#cur~2#1.offset| 0)) (.cse5 (not (= 0 |ULTIMATE.start_aws_byte_cursor_from_array_~#cur~2#1.base|))) (.cse6 (not (= |ULTIMATE.start_aws_byte_cursor_from_array_harness_~#cur~3#1.base| 0))) (.cse7 (not (= |ULTIMATE.start_aws_byte_cursor_from_array_harness_~array~0#1.base| 0))) (.cse8 (= |ULTIMATE.start_aws_byte_cursor_from_array_~len#1| |ULTIMATE.start_aws_byte_cursor_from_array_harness_~length~2#1|)) (.cse10 (<= 1 |ULTIMATE.start_aws_byte_cursor_from_array_#t~ret1076#1|))) (or (and .cse0 .cse1 (= |ULTIMATE.start_aws_byte_cursor_from_array_harness_~array~0#1.offset| 0) .cse2 .cse3 (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_aws_byte_cursor_from_array_~#cur~2#1.base|) .cse4) 0) .cse5 .cse6 (= |ULTIMATE.start_aws_byte_cursor_from_array_~bytes#1.offset| 0) .cse7 (= |ULTIMATE.start_aws_byte_cursor_from_array_harness_~array~0#1.base| |ULTIMATE.start_aws_byte_cursor_from_array_~bytes#1.base|) .cse8 (= |ULTIMATE.start_aws_byte_cursor_from_array_harness_~array~0#1.base| .cse9) .cse10) (and .cse0 .cse1 (not (= .cse9 0)) .cse2 (not (= 0 |ULTIMATE.start_aws_byte_cursor_from_array_~bytes#1.base|)) .cse3 .cse5 .cse6 .cse7 .cse8 (<= |ULTIMATE.start_aws_byte_cursor_from_array_harness_~length~2#1| (* 18446744073709551616 (div |ULTIMATE.start_aws_byte_cursor_from_array_harness_~length~2#1| 18446744073709551616))) .cse10)))) [2021-11-20 06:03:01,051 INFO L854 garLoopResultBuilder]: At program point L8256(line 8256) the Hoare annotation is: (let ((.cse0 (+ |ULTIMATE.start_aws_byte_cursor_from_array_~#cur~2#1.offset| 8))) (and (= |ULTIMATE.start_aws_byte_cursor_from_array_harness_~length~2#1| (select (select |#memory_int| |ULTIMATE.start_aws_byte_cursor_from_array_~#cur~2#1.base|) |ULTIMATE.start_aws_byte_cursor_from_array_~#cur~2#1.offset|)) (= |ULTIMATE.start_aws_byte_cursor_from_array_harness_~array~0#1.offset| 0) (= |ULTIMATE.start_aws_byte_cursor_from_array_harness_~#cur~3#1.offset| 0) (= |ULTIMATE.start_aws_byte_cursor_from_array_~#cur~2#1.offset| 0) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_aws_byte_cursor_from_array_~#cur~2#1.base|) .cse0) 0) (not (= 0 |ULTIMATE.start_aws_byte_cursor_from_array_~#cur~2#1.base|)) (not (= |ULTIMATE.start_aws_byte_cursor_from_array_harness_~#cur~3#1.base| 0)) (= |ULTIMATE.start_aws_byte_cursor_from_array_~bytes#1.offset| 0) (not (= |ULTIMATE.start_aws_byte_cursor_from_array_harness_~array~0#1.base| 0)) (= |ULTIMATE.start_aws_byte_cursor_from_array_harness_~array~0#1.base| |ULTIMATE.start_aws_byte_cursor_from_array_~bytes#1.base|) (= |ULTIMATE.start_aws_byte_cursor_from_array_~len#1| |ULTIMATE.start_aws_byte_cursor_from_array_harness_~length~2#1|) (= |ULTIMATE.start_aws_byte_cursor_from_array_harness_~array~0#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_aws_byte_cursor_from_array_~#cur~2#1.base|) .cse0)))) [2021-11-20 06:03:01,051 INFO L858 garLoopResultBuilder]: For program point L7106-1(line 7106) no Hoare annotation was computed. [2021-11-20 06:03:01,051 INFO L858 garLoopResultBuilder]: For program point L8962-1(line 8962) no Hoare annotation was computed. [2021-11-20 06:03:01,051 INFO L858 garLoopResultBuilder]: For program point L8252-1(line 8252) no Hoare annotation was computed. [2021-11-20 06:03:01,052 INFO L858 garLoopResultBuilder]: For program point L7100-1(lines 7099 7112) no Hoare annotation was computed. [2021-11-20 06:03:01,052 INFO L854 garLoopResultBuilder]: At program point L8252(line 8252) the Hoare annotation is: (and (= |ULTIMATE.start_aws_byte_cursor_from_array_harness_~array~0#1.offset| 0) (= |ULTIMATE.start_aws_byte_cursor_from_array_harness_~#cur~3#1.offset| 0) (not (= |ULTIMATE.start_aws_byte_cursor_from_array_harness_~#cur~3#1.base| 0)) (= |ULTIMATE.start_aws_byte_cursor_from_array_~bytes#1.offset| 0) (not (= |ULTIMATE.start_aws_byte_cursor_from_array_harness_~array~0#1.base| 0)) (= |ULTIMATE.start_aws_byte_cursor_from_array_harness_~array~0#1.base| |ULTIMATE.start_aws_byte_cursor_from_array_~bytes#1.base|) (= |ULTIMATE.start_aws_byte_cursor_from_array_~len#1| |ULTIMATE.start_aws_byte_cursor_from_array_harness_~length~2#1|)) [2021-11-20 06:03:01,052 INFO L854 garLoopResultBuilder]: At program point L7100(line 7100) the Hoare annotation is: (let ((.cse12 (+ |ULTIMATE.start_aws_byte_cursor_from_array_harness_~#cur~3#1.offset| 8)) (.cse13 (select (select |#memory_int| |ULTIMATE.start_aws_byte_cursor_from_array_harness_~#cur~3#1.base|) |ULTIMATE.start_aws_byte_cursor_from_array_harness_~#cur~3#1.offset|))) (let ((.cse4 (<= |ULTIMATE.start_aws_byte_cursor_from_array_#res#1.len| |ULTIMATE.start_aws_byte_cursor_from_array_harness_~length~2#1|)) (.cse1 (= |ULTIMATE.start_assert_bytes_match_~b#1.offset| 0)) (.cse5 (= |ULTIMATE.start_aws_byte_cursor_from_array_harness_~#cur~3#1.offset| 0)) (.cse7 (not (= 0 |ULTIMATE.start_aws_byte_cursor_from_array_~bytes#1.base|))) (.cse8 (<= .cse13 |ULTIMATE.start_aws_byte_cursor_from_array_harness_~length~2#1|)) (.cse9 (not (= |ULTIMATE.start_aws_byte_cursor_from_array_harness_~#cur~3#1.base| 0))) (.cse10 (<= |ULTIMATE.start_aws_byte_cursor_from_array_harness_~length~2#1| .cse13)) (.cse11 (<= |ULTIMATE.start_aws_byte_cursor_from_array_harness_~length~2#1| |ULTIMATE.start_aws_byte_cursor_from_array_#res#1.len|)) (.cse6 (select (select |#memory_$Pointer$.base| |ULTIMATE.start_aws_byte_cursor_from_array_harness_~#cur~3#1.base|) .cse12)) (.cse0 (= |ULTIMATE.start_assert_bytes_match_~a#1.offset| 0))) (or (let ((.cse2 (= |ULTIMATE.start_assert_bytes_match_~b#1.base| 0)) (.cse3 (= |ULTIMATE.start_assert_bytes_match_~a#1.base| 0))) (and (or (not .cse0) (and .cse1 .cse2) (not .cse3)) .cse4 .cse5 (not (= .cse6 0)) .cse7 (not (= |ULTIMATE.start_aws_byte_cursor_from_array_#res#1.ptr.base| 0)) .cse8 (<= |ULTIMATE.start_aws_byte_cursor_from_array_harness_~length~2#1| |ULTIMATE.start_aws_byte_cursor_from_array_~len#1|) (<= |ULTIMATE.start_aws_byte_cursor_from_array_~len#1| |ULTIMATE.start_aws_byte_cursor_from_array_harness_~length~2#1|) (<= |ULTIMATE.start_assert_bytes_match_~len#1| (* 18446744073709551616 (div |ULTIMATE.start_assert_bytes_match_~len#1| 18446744073709551616))) .cse9 .cse10 (not (= |ULTIMATE.start_aws_byte_cursor_from_array_harness_~array~0#1.base| 0)) .cse11 (or (not .cse1) (not .cse2) (and .cse3 .cse0)))) (and .cse4 (= |ULTIMATE.start_aws_byte_cursor_from_array_harness_~array~0#1.offset| 0) .cse1 .cse5 .cse7 (= |ULTIMATE.start_aws_byte_cursor_from_array_#res#1.ptr.offset| 0) .cse8 (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_aws_byte_cursor_from_array_harness_~#cur~3#1.base|) .cse12) 0) .cse9 (= |ULTIMATE.start_aws_byte_cursor_from_array_~bytes#1.offset| 0) .cse10 (= |ULTIMATE.start_aws_byte_cursor_from_array_#res#1.ptr.base| |ULTIMATE.start_aws_byte_cursor_from_array_harness_~array~0#1.base|) (= |ULTIMATE.start_aws_byte_cursor_from_array_harness_~array~0#1.base| |ULTIMATE.start_aws_byte_cursor_from_array_~bytes#1.base|) (= |ULTIMATE.start_aws_byte_cursor_from_array_~len#1| |ULTIMATE.start_aws_byte_cursor_from_array_harness_~length~2#1|) .cse11 (= |ULTIMATE.start_assert_bytes_match_~b#1.base| |ULTIMATE.start_assert_bytes_match_~a#1.base|) (= .cse6 |ULTIMATE.start_aws_byte_cursor_from_array_harness_~array~0#1.base|) .cse0)))) [2021-11-20 06:03:01,052 INFO L854 garLoopResultBuilder]: At program point L8969(line 8969) the Hoare annotation is: (let ((.cse14 (select (select |#memory_int| |ULTIMATE.start_aws_byte_cursor_from_array_harness_~#cur~3#1.base|) |ULTIMATE.start_aws_byte_cursor_from_array_harness_~#cur~3#1.offset|)) (.cse7 (* 18446744073709551616 (div |ULTIMATE.start_aws_byte_cursor_from_array_harness_~length~2#1| 18446744073709551616))) (.cse6 (+ (* 18446744073709551616 (div |ULTIMATE.start_aws_byte_cursor_from_array_harness_#t~mem1211#1| 18446744073709551616)) |ULTIMATE.start_aws_byte_cursor_from_array_harness_~length~2#1|)) (.cse5 (+ |ULTIMATE.start_aws_byte_cursor_from_array_harness_~#cur~3#1.offset| 8))) (let ((.cse0 (<= |ULTIMATE.start_aws_byte_cursor_from_array_#res#1.len| |ULTIMATE.start_aws_byte_cursor_from_array_harness_~length~2#1|)) (.cse1 (= |ULTIMATE.start_aws_byte_cursor_from_array_harness_~#cur~3#1.offset| 0)) (.cse12 (select (select |#memory_$Pointer$.base| |ULTIMATE.start_aws_byte_cursor_from_array_harness_~#cur~3#1.base|) .cse5)) (.cse2 (not (= 0 |ULTIMATE.start_aws_byte_cursor_from_array_~bytes#1.base|))) (.cse3 (<= (+ |ULTIMATE.start_aws_byte_cursor_from_array_harness_#t~mem1211#1| .cse7) .cse6)) (.cse4 (<= .cse14 |ULTIMATE.start_aws_byte_cursor_from_array_harness_~length~2#1|)) (.cse8 (not (= |ULTIMATE.start_aws_byte_cursor_from_array_harness_~#cur~3#1.base| 0))) (.cse9 (<= |ULTIMATE.start_aws_byte_cursor_from_array_harness_~length~2#1| .cse14)) (.cse10 (= |ULTIMATE.start_aws_byte_cursor_from_array_~len#1| |ULTIMATE.start_aws_byte_cursor_from_array_harness_~length~2#1|)) (.cse11 (<= |ULTIMATE.start_aws_byte_cursor_from_array_harness_~length~2#1| |ULTIMATE.start_aws_byte_cursor_from_array_#res#1.len|)) (.cse13 (<= |ULTIMATE.start_aws_byte_cursor_from_array_harness_#t~mem1211#1| |ULTIMATE.start_aws_byte_cursor_from_array_harness_~length~2#1|))) (or (and .cse0 (= |ULTIMATE.start_aws_byte_cursor_from_array_harness_~array~0#1.offset| 0) .cse1 .cse2 .cse3 (= |ULTIMATE.start_aws_byte_cursor_from_array_#res#1.ptr.offset| 0) .cse4 (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_aws_byte_cursor_from_array_harness_~#cur~3#1.base|) .cse5) 0) (< .cse6 (+ |ULTIMATE.start_aws_byte_cursor_from_array_harness_#t~mem1211#1| .cse7 1)) .cse8 (= |ULTIMATE.start_aws_byte_cursor_from_array_~bytes#1.offset| 0) .cse9 (= |ULTIMATE.start_aws_byte_cursor_from_array_#res#1.ptr.base| |ULTIMATE.start_aws_byte_cursor_from_array_harness_~array~0#1.base|) (= |ULTIMATE.start_aws_byte_cursor_from_array_harness_~array~0#1.base| |ULTIMATE.start_aws_byte_cursor_from_array_~bytes#1.base|) .cse10 .cse11 (= .cse12 |ULTIMATE.start_aws_byte_cursor_from_array_harness_~array~0#1.base|) .cse13) (and .cse0 .cse1 (not (= .cse12 0)) (<= .cse14 (* 18446744073709551616 (div .cse14 18446744073709551616))) .cse2 (not (= |ULTIMATE.start_aws_byte_cursor_from_array_#res#1.ptr.base| 0)) .cse3 .cse4 .cse8 .cse9 (not (= |ULTIMATE.start_aws_byte_cursor_from_array_harness_~array~0#1.base| 0)) .cse10 .cse11 .cse13)))) [2021-11-20 06:03:01,053 INFO L858 garLoopResultBuilder]: For program point L7107-1(lines 7107 7109) no Hoare annotation was computed. [2021-11-20 06:03:01,053 INFO L858 garLoopResultBuilder]: For program point L8969-1(line 8969) no Hoare annotation was computed. [2021-11-20 06:03:01,053 INFO L854 garLoopResultBuilder]: At program point L7107(lines 7107 7109) the Hoare annotation is: (let ((.cse0 (select (select |#memory_int| |ULTIMATE.start_aws_byte_cursor_from_array_harness_~#cur~3#1.base|) |ULTIMATE.start_aws_byte_cursor_from_array_harness_~#cur~3#1.offset|)) (.cse1 (+ |ULTIMATE.start_aws_byte_cursor_from_array_harness_~#cur~3#1.offset| 8))) (and (<= |ULTIMATE.start_aws_byte_cursor_from_array_#res#1.len| |ULTIMATE.start_aws_byte_cursor_from_array_harness_~length~2#1|) (= |ULTIMATE.start_aws_byte_cursor_from_array_harness_~array~0#1.offset| 0) (= |ULTIMATE.start_assert_bytes_match_~b#1.offset| 0) (= |ULTIMATE.start_aws_byte_cursor_from_array_harness_~#cur~3#1.offset| 0) (= |ULTIMATE.start_aws_byte_cursor_from_array_#res#1.ptr.offset| 0) (<= .cse0 |ULTIMATE.start_aws_byte_cursor_from_array_harness_~length~2#1|) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_aws_byte_cursor_from_array_harness_~#cur~3#1.base|) .cse1) 0) (not (= |ULTIMATE.start_aws_byte_cursor_from_array_harness_~#cur~3#1.base| 0)) (= |ULTIMATE.start_aws_byte_cursor_from_array_~bytes#1.offset| 0) (<= |ULTIMATE.start_aws_byte_cursor_from_array_harness_~length~2#1| .cse0) (= |ULTIMATE.start_aws_byte_cursor_from_array_#res#1.ptr.base| |ULTIMATE.start_aws_byte_cursor_from_array_harness_~array~0#1.base|) (not (= |ULTIMATE.start_aws_byte_cursor_from_array_harness_~array~0#1.base| 0)) (= |ULTIMATE.start_aws_byte_cursor_from_array_harness_~array~0#1.base| |ULTIMATE.start_aws_byte_cursor_from_array_~bytes#1.base|) (= |ULTIMATE.start_aws_byte_cursor_from_array_~len#1| |ULTIMATE.start_aws_byte_cursor_from_array_harness_~length~2#1|) (<= |ULTIMATE.start_aws_byte_cursor_from_array_harness_~length~2#1| |ULTIMATE.start_aws_byte_cursor_from_array_#res#1.len|) (= |ULTIMATE.start_assert_bytes_match_~b#1.base| |ULTIMATE.start_assert_bytes_match_~a#1.base|) (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_aws_byte_cursor_from_array_harness_~#cur~3#1.base|) .cse1) |ULTIMATE.start_aws_byte_cursor_from_array_harness_~array~0#1.base|) (= |ULTIMATE.start_assert_bytes_match_~a#1.offset| 0))) [2021-11-20 06:03:01,053 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-11-20 06:03:01,053 INFO L854 garLoopResultBuilder]: At program point L8257(lines 8251 8258) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_aws_byte_cursor_from_array_harness_~#cur~3#1.offset| 0)) (.cse1 (not (= |ULTIMATE.start_aws_byte_cursor_from_array_harness_~#cur~3#1.base| 0))) (.cse2 (not (= |ULTIMATE.start_aws_byte_cursor_from_array_harness_~array~0#1.base| 0)))) (or (and .cse0 (= |ULTIMATE.start_aws_byte_cursor_from_array_harness_~length~2#1| |ULTIMATE.start_aws_byte_cursor_from_array_#res#1.len|) (not (= 0 |ULTIMATE.start_aws_byte_cursor_from_array_~bytes#1.base|)) (not (= |ULTIMATE.start_aws_byte_cursor_from_array_#res#1.ptr.base| 0)) (<= |ULTIMATE.start_aws_byte_cursor_from_array_harness_~length~2#1| |ULTIMATE.start_aws_byte_cursor_from_array_~len#1|) (<= |ULTIMATE.start_aws_byte_cursor_from_array_~len#1| |ULTIMATE.start_aws_byte_cursor_from_array_harness_~length~2#1|) .cse1 .cse2 (exists ((|v_ULTIMATE.start_aws_byte_cursor_from_array_~#cur~2#1.base_9| Int)) (let ((.cse3 (select (select |#memory_int| |v_ULTIMATE.start_aws_byte_cursor_from_array_~#cur~2#1.base_9|) 0))) (and (<= 0 (+ .cse3 (* 18446744073709551616 (div (* .cse3 (- 1)) 18446744073709551616)))) (= .cse3 |ULTIMATE.start_aws_byte_cursor_from_array_#res#1.len|))))) (and (<= |ULTIMATE.start_aws_byte_cursor_from_array_#res#1.len| |ULTIMATE.start_aws_byte_cursor_from_array_harness_~length~2#1|) (= |ULTIMATE.start_aws_byte_cursor_from_array_harness_~array~0#1.offset| 0) .cse0 (= |ULTIMATE.start_aws_byte_cursor_from_array_#res#1.ptr.offset| 0) .cse1 (= |ULTIMATE.start_aws_byte_cursor_from_array_~bytes#1.offset| 0) (= |ULTIMATE.start_aws_byte_cursor_from_array_#res#1.ptr.base| |ULTIMATE.start_aws_byte_cursor_from_array_harness_~array~0#1.base|) .cse2 (= |ULTIMATE.start_aws_byte_cursor_from_array_harness_~array~0#1.base| |ULTIMATE.start_aws_byte_cursor_from_array_~bytes#1.base|) (= |ULTIMATE.start_aws_byte_cursor_from_array_~len#1| |ULTIMATE.start_aws_byte_cursor_from_array_harness_~length~2#1|) (<= |ULTIMATE.start_aws_byte_cursor_from_array_harness_~length~2#1| |ULTIMATE.start_aws_byte_cursor_from_array_#res#1.len|)))) [2021-11-20 06:03:01,054 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-11-20 06:03:01,054 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-11-20 06:03:01,054 INFO L858 garLoopResultBuilder]: For program point L7099(lines 7099 7112) no Hoare annotation was computed. [2021-11-20 06:03:01,054 INFO L858 garLoopResultBuilder]: For program point L8959(lines 8959 8973) no Hoare annotation was computed. [2021-11-20 06:03:01,054 INFO L858 garLoopResultBuilder]: For program point L8970(lines 8970 8972) no Hoare annotation was computed. [2021-11-20 06:03:01,054 INFO L861 garLoopResultBuilder]: At program point L8974(line 8974) the Hoare annotation is: true [2021-11-20 06:03:01,055 INFO L854 garLoopResultBuilder]: At program point L7110(line 7110) the Hoare annotation is: (let ((.cse0 (select (select |#memory_int| |ULTIMATE.start_aws_byte_cursor_from_array_harness_~#cur~3#1.base|) |ULTIMATE.start_aws_byte_cursor_from_array_harness_~#cur~3#1.offset|)) (.cse1 (+ |ULTIMATE.start_aws_byte_cursor_from_array_harness_~#cur~3#1.offset| 8))) (and (<= |ULTIMATE.start_aws_byte_cursor_from_array_#res#1.len| |ULTIMATE.start_aws_byte_cursor_from_array_harness_~length~2#1|) (= |ULTIMATE.start_aws_byte_cursor_from_array_harness_~array~0#1.offset| 0) (= |ULTIMATE.start_assert_bytes_match_~b#1.offset| 0) (= |ULTIMATE.start_aws_byte_cursor_from_array_harness_~#cur~3#1.offset| 0) (= |ULTIMATE.start_aws_byte_cursor_from_array_#res#1.ptr.offset| 0) (<= .cse0 |ULTIMATE.start_aws_byte_cursor_from_array_harness_~length~2#1|) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_aws_byte_cursor_from_array_harness_~#cur~3#1.base|) .cse1) 0) (not (= |ULTIMATE.start_aws_byte_cursor_from_array_harness_~#cur~3#1.base| 0)) (= |ULTIMATE.start_aws_byte_cursor_from_array_~bytes#1.offset| 0) (<= |ULTIMATE.start_aws_byte_cursor_from_array_harness_~length~2#1| .cse0) (= |ULTIMATE.start_aws_byte_cursor_from_array_#res#1.ptr.base| |ULTIMATE.start_aws_byte_cursor_from_array_harness_~array~0#1.base|) (not (= |ULTIMATE.start_aws_byte_cursor_from_array_harness_~array~0#1.base| 0)) (= |ULTIMATE.start_aws_byte_cursor_from_array_harness_~array~0#1.base| |ULTIMATE.start_aws_byte_cursor_from_array_~bytes#1.base|) (= |ULTIMATE.start_aws_byte_cursor_from_array_~len#1| |ULTIMATE.start_aws_byte_cursor_from_array_harness_~length~2#1|) (= |ULTIMATE.start_assert_bytes_match_#t~mem589#1| |ULTIMATE.start_assert_bytes_match_#t~mem588#1|) (<= |ULTIMATE.start_aws_byte_cursor_from_array_harness_~length~2#1| |ULTIMATE.start_aws_byte_cursor_from_array_#res#1.len|) (= |ULTIMATE.start_assert_bytes_match_~b#1.base| |ULTIMATE.start_assert_bytes_match_~a#1.base|) (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_aws_byte_cursor_from_array_harness_~#cur~3#1.base|) .cse1) |ULTIMATE.start_aws_byte_cursor_from_array_harness_~array~0#1.base|) (= |ULTIMATE.start_assert_bytes_match_~a#1.offset| 0))) [2021-11-20 06:03:01,055 INFO L861 garLoopResultBuilder]: At program point L8962(line 8962) the Hoare annotation is: true [2021-11-20 06:03:01,055 INFO L854 garLoopResultBuilder]: At program point L7106(line 7106) the Hoare annotation is: (let ((.cse0 (select (select |#memory_int| |ULTIMATE.start_aws_byte_cursor_from_array_harness_~#cur~3#1.base|) |ULTIMATE.start_aws_byte_cursor_from_array_harness_~#cur~3#1.offset|)) (.cse1 (+ |ULTIMATE.start_aws_byte_cursor_from_array_harness_~#cur~3#1.offset| 8))) (and (<= |ULTIMATE.start_aws_byte_cursor_from_array_#res#1.len| |ULTIMATE.start_aws_byte_cursor_from_array_harness_~length~2#1|) (= |ULTIMATE.start_aws_byte_cursor_from_array_harness_~array~0#1.offset| 0) (= |ULTIMATE.start_assert_bytes_match_~b#1.offset| 0) (= |ULTIMATE.start_aws_byte_cursor_from_array_harness_~#cur~3#1.offset| 0) (= |ULTIMATE.start_aws_byte_cursor_from_array_#res#1.ptr.offset| 0) (<= .cse0 |ULTIMATE.start_aws_byte_cursor_from_array_harness_~length~2#1|) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_aws_byte_cursor_from_array_harness_~#cur~3#1.base|) .cse1) 0) (not (= |ULTIMATE.start_aws_byte_cursor_from_array_harness_~#cur~3#1.base| 0)) (= |ULTIMATE.start_aws_byte_cursor_from_array_~bytes#1.offset| 0) (<= |ULTIMATE.start_aws_byte_cursor_from_array_harness_~length~2#1| .cse0) (= |ULTIMATE.start_aws_byte_cursor_from_array_#res#1.ptr.base| |ULTIMATE.start_aws_byte_cursor_from_array_harness_~array~0#1.base|) (not (= |ULTIMATE.start_aws_byte_cursor_from_array_harness_~array~0#1.base| 0)) (= |ULTIMATE.start_aws_byte_cursor_from_array_harness_~array~0#1.base| |ULTIMATE.start_aws_byte_cursor_from_array_~bytes#1.base|) (= |ULTIMATE.start_aws_byte_cursor_from_array_~len#1| |ULTIMATE.start_aws_byte_cursor_from_array_harness_~length~2#1|) (<= |ULTIMATE.start_aws_byte_cursor_from_array_harness_~length~2#1| |ULTIMATE.start_aws_byte_cursor_from_array_#res#1.len|) (= |ULTIMATE.start_assert_bytes_match_~b#1.base| |ULTIMATE.start_assert_bytes_match_~a#1.base|) (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_aws_byte_cursor_from_array_harness_~#cur~3#1.base|) .cse1) |ULTIMATE.start_aws_byte_cursor_from_array_harness_~array~0#1.base|) (= |ULTIMATE.start_assert_bytes_match_~a#1.offset| 0))) [2021-11-20 06:03:01,055 INFO L854 garLoopResultBuilder]: At program point L8968(line 8968) the Hoare annotation is: (let ((.cse8 (+ |ULTIMATE.start_aws_byte_cursor_from_array_harness_~#cur~3#1.offset| 8))) (let ((.cse0 (<= |ULTIMATE.start_aws_byte_cursor_from_array_#res#1.len| |ULTIMATE.start_aws_byte_cursor_from_array_harness_~length~2#1|)) (.cse1 (= |ULTIMATE.start_aws_byte_cursor_from_array_harness_~#cur~3#1.offset| 0)) (.cse3 (not (= |ULTIMATE.start_aws_byte_cursor_from_array_harness_~#cur~3#1.base| 0))) (.cse4 (select (select |#memory_int| |ULTIMATE.start_aws_byte_cursor_from_array_harness_~#cur~3#1.base|) |ULTIMATE.start_aws_byte_cursor_from_array_harness_~#cur~3#1.offset|)) (.cse5 (not (= |ULTIMATE.start_aws_byte_cursor_from_array_harness_~array~0#1.base| 0))) (.cse7 (<= |ULTIMATE.start_aws_byte_cursor_from_array_harness_~length~2#1| |ULTIMATE.start_aws_byte_cursor_from_array_#res#1.len|)) (.cse2 (select (select |#memory_$Pointer$.base| |ULTIMATE.start_aws_byte_cursor_from_array_harness_~#cur~3#1.base|) .cse8))) (or (and .cse0 .cse1 (not (= .cse2 0)) (not (= 0 |ULTIMATE.start_aws_byte_cursor_from_array_~bytes#1.base|)) (not (= |ULTIMATE.start_aws_byte_cursor_from_array_#res#1.ptr.base| 0)) (<= |ULTIMATE.start_aws_byte_cursor_from_array_harness_~length~2#1| |ULTIMATE.start_aws_byte_cursor_from_array_~len#1|) (<= |ULTIMATE.start_aws_byte_cursor_from_array_~len#1| |ULTIMATE.start_aws_byte_cursor_from_array_harness_~length~2#1|) .cse3 (= .cse4 |ULTIMATE.start_aws_byte_cursor_from_array_harness_~length~2#1|) .cse5 (exists ((|v_ULTIMATE.start_aws_byte_cursor_from_array_~#cur~2#1.base_7| Int)) (let ((.cse6 (select (select |#memory_int| |v_ULTIMATE.start_aws_byte_cursor_from_array_~#cur~2#1.base_7|) 0))) (and (= (select (select |#memory_int| |ULTIMATE.start_aws_byte_cursor_from_array_harness_~#cur~3#1.base|) |ULTIMATE.start_aws_byte_cursor_from_array_harness_~#cur~3#1.offset|) .cse6) (<= 0 (+ .cse6 (* 18446744073709551616 (div (* .cse6 (- 1)) 18446744073709551616))))))) .cse7) (and .cse0 (= |ULTIMATE.start_aws_byte_cursor_from_array_harness_~array~0#1.offset| 0) .cse1 (= |ULTIMATE.start_aws_byte_cursor_from_array_#res#1.ptr.offset| 0) (<= .cse4 |ULTIMATE.start_aws_byte_cursor_from_array_harness_~length~2#1|) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_aws_byte_cursor_from_array_harness_~#cur~3#1.base|) .cse8) 0) .cse3 (= |ULTIMATE.start_aws_byte_cursor_from_array_~bytes#1.offset| 0) (<= |ULTIMATE.start_aws_byte_cursor_from_array_harness_~length~2#1| .cse4) (= |ULTIMATE.start_aws_byte_cursor_from_array_#res#1.ptr.base| |ULTIMATE.start_aws_byte_cursor_from_array_harness_~array~0#1.base|) .cse5 (= |ULTIMATE.start_aws_byte_cursor_from_array_harness_~array~0#1.base| |ULTIMATE.start_aws_byte_cursor_from_array_~bytes#1.base|) (= |ULTIMATE.start_aws_byte_cursor_from_array_~len#1| |ULTIMATE.start_aws_byte_cursor_from_array_harness_~length~2#1|) .cse7 (= .cse2 |ULTIMATE.start_aws_byte_cursor_from_array_harness_~array~0#1.base|))))) [2021-11-20 06:03:01,056 INFO L858 garLoopResultBuilder]: For program point L8970-2(lines 8970 8972) no Hoare annotation was computed. [2021-11-20 06:03:01,056 INFO L854 garLoopResultBuilder]: At program point L8968-1(line 8968) the Hoare annotation is: (let ((.cse13 (+ |ULTIMATE.start_aws_byte_cursor_from_array_harness_~#cur~3#1.offset| 8)) (.cse4 (select (select |#memory_int| |ULTIMATE.start_aws_byte_cursor_from_array_harness_~#cur~3#1.base|) |ULTIMATE.start_aws_byte_cursor_from_array_harness_~#cur~3#1.offset|))) (let ((.cse0 (<= |ULTIMATE.start_aws_byte_cursor_from_array_#res#1.len| |ULTIMATE.start_aws_byte_cursor_from_array_harness_~length~2#1|)) (.cse1 (<= 1 |ULTIMATE.start_aws_byte_cursor_from_array_harness_#t~ret1210#1|)) (.cse2 (= |ULTIMATE.start_aws_byte_cursor_from_array_harness_~#cur~3#1.offset| 0)) (.cse5 (not (= 0 |ULTIMATE.start_aws_byte_cursor_from_array_~bytes#1.base|))) (.cse6 (<= .cse4 |ULTIMATE.start_aws_byte_cursor_from_array_harness_~length~2#1|)) (.cse7 (<= |ULTIMATE.start_aws_byte_cursor_from_array_harness_~length~2#1| |ULTIMATE.start_aws_byte_cursor_from_array_~len#1|)) (.cse8 (<= |ULTIMATE.start_aws_byte_cursor_from_array_~len#1| |ULTIMATE.start_aws_byte_cursor_from_array_harness_~length~2#1|)) (.cse9 (<= |ULTIMATE.start_aws_byte_cursor_from_array_harness_#t~ret1210#1| 1)) (.cse10 (not (= |ULTIMATE.start_aws_byte_cursor_from_array_harness_~#cur~3#1.base| 0))) (.cse11 (<= |ULTIMATE.start_aws_byte_cursor_from_array_harness_~length~2#1| .cse4)) (.cse12 (<= |ULTIMATE.start_aws_byte_cursor_from_array_harness_~length~2#1| |ULTIMATE.start_aws_byte_cursor_from_array_#res#1.len|)) (.cse3 (select (select |#memory_$Pointer$.base| |ULTIMATE.start_aws_byte_cursor_from_array_harness_~#cur~3#1.base|) .cse13))) (or (and .cse0 .cse1 .cse2 (not (= .cse3 0)) (<= .cse4 (* 18446744073709551616 (div .cse4 18446744073709551616))) .cse5 (not (= |ULTIMATE.start_aws_byte_cursor_from_array_#res#1.ptr.base| 0)) .cse6 .cse7 .cse8 .cse9 .cse10 .cse11 (not (= |ULTIMATE.start_aws_byte_cursor_from_array_harness_~array~0#1.base| 0)) .cse12) (and .cse0 (= |ULTIMATE.start_aws_byte_cursor_from_array_harness_~array~0#1.offset| 0) .cse1 .cse2 .cse5 (= |ULTIMATE.start_aws_byte_cursor_from_array_#res#1.ptr.offset| 0) .cse6 .cse7 (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_aws_byte_cursor_from_array_harness_~#cur~3#1.base|) .cse13) 0) .cse8 .cse9 .cse10 (= |ULTIMATE.start_aws_byte_cursor_from_array_~bytes#1.offset| 0) .cse11 (= |ULTIMATE.start_aws_byte_cursor_from_array_#res#1.ptr.base| |ULTIMATE.start_aws_byte_cursor_from_array_harness_~array~0#1.base|) (= |ULTIMATE.start_aws_byte_cursor_from_array_harness_~array~0#1.base| |ULTIMATE.start_aws_byte_cursor_from_array_~bytes#1.base|) .cse12 (= .cse3 |ULTIMATE.start_aws_byte_cursor_from_array_harness_~array~0#1.base|))))) [2021-11-20 06:03:01,056 INFO L858 garLoopResultBuilder]: For program point L8968-2(line 8968) no Hoare annotation was computed. [2021-11-20 06:03:01,056 INFO L858 garLoopResultBuilder]: For program point L7110-1(line 7110) no Hoare annotation was computed. [2021-11-20 06:03:01,056 INFO L858 garLoopResultBuilder]: For program point L223(line 223) no Hoare annotation was computed. [2021-11-20 06:03:01,057 INFO L861 garLoopResultBuilder]: At program point __VERIFIER_assertENTRY(lines 222 224) the Hoare annotation is: true [2021-11-20 06:03:01,057 INFO L858 garLoopResultBuilder]: For program point L223-1(line 223) no Hoare annotation was computed. [2021-11-20 06:03:01,057 INFO L858 garLoopResultBuilder]: For program point L223-3(lines 222 224) no Hoare annotation was computed. [2021-11-20 06:03:01,057 INFO L858 garLoopResultBuilder]: For program point __VERIFIER_assertEXIT(lines 222 224) no Hoare annotation was computed. [2021-11-20 06:03:01,057 INFO L858 garLoopResultBuilder]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 223) no Hoare annotation was computed. [2021-11-20 06:03:01,061 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:03:01,062 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-20 06:03:01,072 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList aws_byte_cursor_from_array_#res#1 : { len : int, ptr : $Pointer$ } not handled [2021-11-20 06:03:01,074 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_aws_byte_cursor_from_array_~#cur~2#1.base_9,QUANTIFIED] [2021-11-20 06:03:01,074 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_aws_byte_cursor_from_array_~#cur~2#1.base_9,QUANTIFIED] [2021-11-20 06:03:01,074 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_aws_byte_cursor_from_array_~#cur~2#1.base_9,QUANTIFIED] [2021-11-20 06:03:01,075 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList aws_byte_cursor_from_array_#res#1 : { len : int, ptr : $Pointer$ } not handled [2021-11-20 06:03:01,075 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList aws_byte_cursor_from_array_#res#1 : { len : int, ptr : $Pointer$ } not handled [2021-11-20 06:03:01,079 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList aws_byte_cursor_from_array_#res#1 : { len : int, ptr : $Pointer$ } not handled [2021-11-20 06:03:01,080 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_aws_byte_cursor_from_array_~#cur~2#1.base_9,QUANTIFIED] [2021-11-20 06:03:01,080 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_aws_byte_cursor_from_array_~#cur~2#1.base_9,QUANTIFIED] [2021-11-20 06:03:01,080 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_aws_byte_cursor_from_array_~#cur~2#1.base_9,QUANTIFIED] [2021-11-20 06:03:01,081 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList aws_byte_cursor_from_array_#res#1 : { len : int, ptr : $Pointer$ } not handled [2021-11-20 06:03:01,081 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList aws_byte_cursor_from_array_#res#1 : { len : int, ptr : $Pointer$ } not handled [2021-11-20 06:03:01,084 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 06:03:01 BoogieIcfgContainer [2021-11-20 06:03:01,084 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-20 06:03:01,085 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-20 06:03:01,085 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-20 06:03:01,085 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-20 06:03:01,085 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 06:02:35" (3/4) ... [2021-11-20 06:03:01,088 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-20 06:03:01,095 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure bounded_malloc [2021-11-20 06:03:01,095 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure aws_byte_cursor_is_valid [2021-11-20 06:03:01,095 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure nondet_uint64_t [2021-11-20 06:03:01,096 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2021-11-20 06:03:01,096 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2021-11-20 06:03:01,109 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 117 nodes and edges [2021-11-20 06:03:01,111 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 55 nodes and edges [2021-11-20 06:03:01,113 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 26 nodes and edges [2021-11-20 06:03:01,114 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2021-11-20 06:03:01,116 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2021-11-20 06:03:01,118 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2021-11-20 06:03:01,119 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-11-20 06:03:01,121 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-20 06:03:01,153 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((cur == 0 && length == unknown-#res!len-unknown) && !(0 == bytes)) && !(aws_byte_cursor_from_array_#res#1.ptr == 0)) && length <= len) && len <= length) && !(cur == 0)) && !(array == 0)) && (\exists v_ULTIMATE.start_aws_byte_cursor_from_array_~#cur~2#1.base_9 : int :: 0 <= unknown-#memory_int-unknown[v_ULTIMATE.start_aws_byte_cursor_from_array_~#cur~2#1.base_9][0] + 18446744073709551616 * (unknown-#memory_int-unknown[v_ULTIMATE.start_aws_byte_cursor_from_array_~#cur~2#1.base_9][0] * -1 / 18446744073709551616) && unknown-#memory_int-unknown[v_ULTIMATE.start_aws_byte_cursor_from_array_~#cur~2#1.base_9][0] == unknown-#res!len-unknown)) || ((((((((((unknown-#res!len-unknown <= length && array == 0) && cur == 0) && aws_byte_cursor_from_array_#res#1.ptr == 0) && !(cur == 0)) && bytes == 0) && aws_byte_cursor_from_array_#res#1.ptr == array) && !(array == 0)) && array == bytes) && len == length) && length <= unknown-#res!len-unknown) [2021-11-20 06:03:02,380 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b9dff9f-ef83-4bf3-962e-cb6ca81039a3/bin/uautomizer-DQz5hQGWxF/witness.graphml [2021-11-20 06:03:02,380 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-20 06:03:02,380 INFO L158 Benchmark]: Toolchain (without parser) took 32101.63ms. Allocated memory was 119.5MB in the beginning and 383.8MB in the end (delta: 264.2MB). Free memory was 76.1MB in the beginning and 203.6MB in the end (delta: -127.5MB). Peak memory consumption was 262.1MB. Max. memory is 16.1GB. [2021-11-20 06:03:02,381 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 83.9MB. Free memory was 55.4MB in the beginning and 55.3MB in the end (delta: 21.8kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-20 06:03:02,381 INFO L158 Benchmark]: CACSL2BoogieTranslator took 3022.59ms. Allocated memory was 119.5MB in the beginning and 157.3MB in the end (delta: 37.7MB). Free memory was 75.8MB in the beginning and 88.3MB in the end (delta: -12.5MB). Peak memory consumption was 57.0MB. Max. memory is 16.1GB. [2021-11-20 06:03:02,381 INFO L158 Benchmark]: Boogie Procedure Inliner took 243.82ms. Allocated memory is still 157.3MB. Free memory was 88.3MB in the beginning and 77.4MB in the end (delta: 10.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-20 06:03:02,381 INFO L158 Benchmark]: Boogie Preprocessor took 124.01ms. Allocated memory is still 157.3MB. Free memory was 77.4MB in the beginning and 71.5MB in the end (delta: 5.9MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-11-20 06:03:02,382 INFO L158 Benchmark]: RCFGBuilder took 1562.68ms. Allocated memory was 157.3MB in the beginning and 220.2MB in the end (delta: 62.9MB). Free memory was 71.5MB in the beginning and 152.1MB in the end (delta: -80.6MB). Peak memory consumption was 26.5MB. Max. memory is 16.1GB. [2021-11-20 06:03:02,382 INFO L158 Benchmark]: TraceAbstraction took 25839.69ms. Allocated memory was 220.2MB in the beginning and 383.8MB in the end (delta: 163.6MB). Free memory was 152.1MB in the beginning and 124.1MB in the end (delta: 28.0MB). Peak memory consumption was 191.5MB. Max. memory is 16.1GB. [2021-11-20 06:03:02,383 INFO L158 Benchmark]: Witness Printer took 1295.34ms. Allocated memory is still 383.8MB. Free memory was 124.1MB in the beginning and 203.6MB in the end (delta: -79.5MB). Peak memory consumption was 46.4MB. Max. memory is 16.1GB. [2021-11-20 06:03:02,384 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 83.9MB. Free memory was 55.4MB in the beginning and 55.3MB in the end (delta: 21.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 3022.59ms. Allocated memory was 119.5MB in the beginning and 157.3MB in the end (delta: 37.7MB). Free memory was 75.8MB in the beginning and 88.3MB in the end (delta: -12.5MB). Peak memory consumption was 57.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 243.82ms. Allocated memory is still 157.3MB. Free memory was 88.3MB in the beginning and 77.4MB in the end (delta: 10.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Preprocessor took 124.01ms. Allocated memory is still 157.3MB. Free memory was 77.4MB in the beginning and 71.5MB in the end (delta: 5.9MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * RCFGBuilder took 1562.68ms. Allocated memory was 157.3MB in the beginning and 220.2MB in the end (delta: 62.9MB). Free memory was 71.5MB in the beginning and 152.1MB in the end (delta: -80.6MB). Peak memory consumption was 26.5MB. Max. memory is 16.1GB. * TraceAbstraction took 25839.69ms. Allocated memory was 220.2MB in the beginning and 383.8MB in the end (delta: 163.6MB). Free memory was 152.1MB in the beginning and 124.1MB in the end (delta: 28.0MB). Peak memory consumption was 191.5MB. Max. memory is 16.1GB. * Witness Printer took 1295.34ms. Allocated memory is still 383.8MB. Free memory was 124.1MB in the beginning and 203.6MB in the end (delta: -79.5MB). Peak memory consumption was 46.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList aws_byte_cursor_from_array_#res#1 : { len : int, ptr : $Pointer$ } not handled - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_aws_byte_cursor_from_array_~#cur~2#1.base_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_aws_byte_cursor_from_array_~#cur~2#1.base_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_aws_byte_cursor_from_array_~#cur~2#1.base_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList aws_byte_cursor_from_array_#res#1 : { len : int, ptr : $Pointer$ } not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList aws_byte_cursor_from_array_#res#1 : { len : int, ptr : $Pointer$ } not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList aws_byte_cursor_from_array_#res#1 : { len : int, ptr : $Pointer$ } not handled - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_aws_byte_cursor_from_array_~#cur~2#1.base_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_aws_byte_cursor_from_array_~#cur~2#1.base_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_aws_byte_cursor_from_array_~#cur~2#1.base_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList aws_byte_cursor_from_array_#res#1 : { len : int, ptr : $Pointer$ } not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList aws_byte_cursor_from_array_#res#1 : { len : int, ptr : $Pointer$ } not handled * 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 6 procedures, 61 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 25.7s, OverallIterations: 18, TraceHistogramMax: 5, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 7.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.5s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1019 SdHoareTripleChecker+Valid, 5.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 966 mSDsluCounter, 4752 SdHoareTripleChecker+Invalid, 4.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 467 IncrementalHoareTripleChecker+Unchecked, 3701 mSDsCounter, 390 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4692 IncrementalHoareTripleChecker+Invalid, 5549 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 390 mSolverCounterUnsat, 1051 mSDtfsCounter, 4692 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 762 GetRequests, 465 SyntacticMatches, 16 SemanticMatches, 281 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 810 ImplicationChecksByTransitivity, 6.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=109occurred in iteration=12, InterpolantAutomatonStates: 208, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 18 MinimizatonAttempts, 88 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 19 LocationsWithAnnotation, 101 PreInvPairs, 125 NumberOfFragments, 1214 HoareAnnotationTreeSize, 101 FomulaSimplifications, 214 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 19 FomulaSimplificationsInter, 2110 FormulaSimplificationTreeSizeReductionInter, 1.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 4.5s SatisfiabilityAnalysisTime, 10.0s InterpolantComputationTime, 1046 NumberOfCodeBlocks, 1046 NumberOfCodeBlocksAsserted, 21 NumberOfCheckSat, 1025 ConstructedInterpolants, 44 QuantifiedInterpolants, 4609 SizeOfPredicates, 39 NumberOfNonLiveVariables, 7255 ConjunctsInSsa, 89 ConjunctsInUnsatCore, 21 InterpolantComputations, 16 PerfectInterpolantSequences, 320/362 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: 8974]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 8251]: Loop Invariant [2021-11-20 06:03:02,394 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList aws_byte_cursor_from_array_#res#1 : { len : int, ptr : $Pointer$ } not handled [2021-11-20 06:03:02,394 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_aws_byte_cursor_from_array_~#cur~2#1.base_9,QUANTIFIED] [2021-11-20 06:03:02,394 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_aws_byte_cursor_from_array_~#cur~2#1.base_9,QUANTIFIED] [2021-11-20 06:03:02,394 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_aws_byte_cursor_from_array_~#cur~2#1.base_9,QUANTIFIED] [2021-11-20 06:03:02,395 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList aws_byte_cursor_from_array_#res#1 : { len : int, ptr : $Pointer$ } not handled [2021-11-20 06:03:02,395 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList aws_byte_cursor_from_array_#res#1 : { len : int, ptr : $Pointer$ } not handled [2021-11-20 06:03:02,396 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList aws_byte_cursor_from_array_#res#1 : { len : int, ptr : $Pointer$ } not handled [2021-11-20 06:03:02,396 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_aws_byte_cursor_from_array_~#cur~2#1.base_9,QUANTIFIED] [2021-11-20 06:03:02,397 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_aws_byte_cursor_from_array_~#cur~2#1.base_9,QUANTIFIED] [2021-11-20 06:03:02,397 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_aws_byte_cursor_from_array_~#cur~2#1.base_9,QUANTIFIED] [2021-11-20 06:03:02,397 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList aws_byte_cursor_from_array_#res#1 : { len : int, ptr : $Pointer$ } not handled [2021-11-20 06:03:02,397 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList aws_byte_cursor_from_array_#res#1 : { len : int, ptr : $Pointer$ } not handled Derived loop invariant: ((((((((cur == 0 && length == unknown-#res!len-unknown) && !(0 == bytes)) && !(aws_byte_cursor_from_array_#res#1.ptr == 0)) && length <= len) && len <= length) && !(cur == 0)) && !(array == 0)) && (\exists v_ULTIMATE.start_aws_byte_cursor_from_array_~#cur~2#1.base_9 : int :: 0 <= unknown-#memory_int-unknown[v_ULTIMATE.start_aws_byte_cursor_from_array_~#cur~2#1.base_9][0] + 18446744073709551616 * (unknown-#memory_int-unknown[v_ULTIMATE.start_aws_byte_cursor_from_array_~#cur~2#1.base_9][0] * -1 / 18446744073709551616) && unknown-#memory_int-unknown[v_ULTIMATE.start_aws_byte_cursor_from_array_~#cur~2#1.base_9][0] == unknown-#res!len-unknown)) || ((((((((((unknown-#res!len-unknown <= length && array == 0) && cur == 0) && aws_byte_cursor_from_array_#res#1.ptr == 0) && !(cur == 0)) && bytes == 0) && aws_byte_cursor_from_array_#res#1.ptr == array) && !(array == 0)) && array == bytes) && len == length) && length <= unknown-#res!len-unknown) RESULT: Ultimate proved your program to be correct! [2021-11-20 06:03:02,452 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b9dff9f-ef83-4bf3-962e-cb6ca81039a3/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE