./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_eq_c_str_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f8a8157-6fc9-4558-bdc7-a83757261cb7/bin/uautomizer-DrprNOufMa/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f8a8157-6fc9-4558-bdc7-a83757261cb7/bin/uautomizer-DrprNOufMa/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f8a8157-6fc9-4558-bdc7-a83757261cb7/bin/uautomizer-DrprNOufMa/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f8a8157-6fc9-4558-bdc7-a83757261cb7/bin/uautomizer-DrprNOufMa/config/AutomizerReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_eq_c_str_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f8a8157-6fc9-4558-bdc7-a83757261cb7/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f8a8157-6fc9-4558-bdc7-a83757261cb7/bin/uautomizer-DrprNOufMa --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 f87ca444cebdd8343e0a486129ff23acad574c7cfb073abcacffd6c901ccf3af --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-12-06 17:42:15,303 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-06 17:42:15,305 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-06 17:42:15,335 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-06 17:42:15,335 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-06 17:42:15,336 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-06 17:42:15,338 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-06 17:42:15,339 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-06 17:42:15,341 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-06 17:42:15,342 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-06 17:42:15,343 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-06 17:42:15,344 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-06 17:42:15,344 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-06 17:42:15,345 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-06 17:42:15,346 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-06 17:42:15,347 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-06 17:42:15,348 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-06 17:42:15,349 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-06 17:42:15,351 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-06 17:42:15,353 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-06 17:42:15,355 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-06 17:42:15,356 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-06 17:42:15,357 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-06 17:42:15,358 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-06 17:42:15,361 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-06 17:42:15,361 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-06 17:42:15,362 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-06 17:42:15,362 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-06 17:42:15,363 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-06 17:42:15,364 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-06 17:42:15,364 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-06 17:42:15,365 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-06 17:42:15,365 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-06 17:42:15,366 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-06 17:42:15,367 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-06 17:42:15,367 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-06 17:42:15,368 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-06 17:42:15,368 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-06 17:42:15,368 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-06 17:42:15,369 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-06 17:42:15,369 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-06 17:42:15,370 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f8a8157-6fc9-4558-bdc7-a83757261cb7/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-06 17:42:15,396 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-06 17:42:15,396 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-06 17:42:15,396 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-06 17:42:15,396 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-06 17:42:15,397 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-06 17:42:15,397 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-06 17:42:15,398 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-06 17:42:15,398 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-06 17:42:15,398 INFO L138 SettingsManager]: * Use SBE=true [2021-12-06 17:42:15,398 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-06 17:42:15,398 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-06 17:42:15,398 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-06 17:42:15,398 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-06 17:42:15,398 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-06 17:42:15,399 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-06 17:42:15,399 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-06 17:42:15,399 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-06 17:42:15,399 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-06 17:42:15,399 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-06 17:42:15,399 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-06 17:42:15,399 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-06 17:42:15,400 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 17:42:15,400 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-06 17:42:15,400 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-06 17:42:15,400 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-06 17:42:15,400 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-06 17:42:15,400 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-06 17:42:15,400 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-06 17:42:15,401 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-06 17:42:15,401 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-06 17:42:15,401 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-06 17:42:15,401 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_7f8a8157-6fc9-4558-bdc7-a83757261cb7/bin/uautomizer-DrprNOufMa/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f8a8157-6fc9-4558-bdc7-a83757261cb7/bin/uautomizer-DrprNOufMa Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f87ca444cebdd8343e0a486129ff23acad574c7cfb073abcacffd6c901ccf3af [2021-12-06 17:42:15,582 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-06 17:42:15,600 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-06 17:42:15,602 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-06 17:42:15,603 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-06 17:42:15,604 INFO L275 PluginConnector]: CDTParser initialized [2021-12-06 17:42:15,604 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f8a8157-6fc9-4558-bdc7-a83757261cb7/bin/uautomizer-DrprNOufMa/../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_eq_c_str_harness.i [2021-12-06 17:42:15,652 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f8a8157-6fc9-4558-bdc7-a83757261cb7/bin/uautomizer-DrprNOufMa/data/b6c2f2d43/900ac644e2b14d9ca14959266574914b/FLAGadae765b6 [2021-12-06 17:42:16,247 INFO L306 CDTParser]: Found 1 translation units. [2021-12-06 17:42:16,248 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f8a8157-6fc9-4558-bdc7-a83757261cb7/sv-benchmarks/c/aws-c-common/aws_byte_cursor_eq_c_str_harness.i [2021-12-06 17:42:16,270 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f8a8157-6fc9-4558-bdc7-a83757261cb7/bin/uautomizer-DrprNOufMa/data/b6c2f2d43/900ac644e2b14d9ca14959266574914b/FLAGadae765b6 [2021-12-06 17:42:16,697 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f8a8157-6fc9-4558-bdc7-a83757261cb7/bin/uautomizer-DrprNOufMa/data/b6c2f2d43/900ac644e2b14d9ca14959266574914b [2021-12-06 17:42:16,702 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-06 17:42:16,704 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-06 17:42:16,706 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-06 17:42:16,706 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-06 17:42:16,710 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-06 17:42:16,711 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 05:42:16" (1/1) ... [2021-12-06 17:42:16,712 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@353d3ef1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:42:16, skipping insertion in model container [2021-12-06 17:42:16,712 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 05:42:16" (1/1) ... [2021-12-06 17:42:16,718 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-06 17:42:16,786 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-06 17:42:16,988 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_7f8a8157-6fc9-4558-bdc7-a83757261cb7/sv-benchmarks/c/aws-c-common/aws_byte_cursor_eq_c_str_harness.i[4498,4511] [2021-12-06 17:42:16,993 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_7f8a8157-6fc9-4558-bdc7-a83757261cb7/sv-benchmarks/c/aws-c-common/aws_byte_cursor_eq_c_str_harness.i[4558,4571] [2021-12-06 17:42:17,610 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-06 17:42:17,610 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-06 17:42:17,611 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-06 17:42:17,611 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-06 17:42:17,612 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-06 17:42:17,622 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-06 17:42:17,622 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-06 17:42:17,624 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-06 17:42:17,624 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-06 17:42:17,924 WARN L610 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-12-06 17:42:17,925 WARN L610 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-12-06 17:42:17,926 WARN L610 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-12-06 17:42:17,926 WARN L610 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-12-06 17:42:17,927 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-12-06 17:42:17,928 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-12-06 17:42:17,928 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-12-06 17:42:17,929 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-12-06 17:42:17,929 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-12-06 17:42:17,930 WARN L610 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-12-06 17:42:18,062 WARN L610 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-12-06 17:42:18,123 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-06 17:42:18,123 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-06 17:42:18,170 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 17:42:18,206 INFO L203 MainTranslator]: Completed pre-run [2021-12-06 17:42:18,215 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_7f8a8157-6fc9-4558-bdc7-a83757261cb7/sv-benchmarks/c/aws-c-common/aws_byte_cursor_eq_c_str_harness.i[4498,4511] [2021-12-06 17:42:18,216 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_7f8a8157-6fc9-4558-bdc7-a83757261cb7/sv-benchmarks/c/aws-c-common/aws_byte_cursor_eq_c_str_harness.i[4558,4571] [2021-12-06 17:42:18,241 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-06 17:42:18,242 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-06 17:42:18,242 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-06 17:42:18,242 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-06 17:42:18,243 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-06 17:42:18,247 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-06 17:42:18,247 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-06 17:42:18,248 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-06 17:42:18,248 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-06 17:42:18,281 WARN L610 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-12-06 17:42:18,281 WARN L610 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-12-06 17:42:18,282 WARN L610 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-12-06 17:42:18,283 WARN L610 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-12-06 17:42:18,284 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-12-06 17:42:18,284 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-12-06 17:42:18,285 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-12-06 17:42:18,285 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-12-06 17:42:18,286 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-12-06 17:42:18,286 WARN L610 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-12-06 17:42:18,305 WARN L610 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-12-06 17:42:18,352 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-06 17:42:18,352 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-06 17:42:18,376 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 17:42:18,579 INFO L208 MainTranslator]: Completed translation [2021-12-06 17:42:18,579 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:42:18 WrapperNode [2021-12-06 17:42:18,579 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-06 17:42:18,581 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-06 17:42:18,581 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-06 17:42:18,581 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-06 17:42:18,587 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:42:18" (1/1) ... [2021-12-06 17:42:18,649 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:42:18" (1/1) ... [2021-12-06 17:42:18,704 INFO L137 Inliner]: procedures = 691, calls = 2629, calls flagged for inlining = 63, calls inlined = 9, statements flattened = 863 [2021-12-06 17:42:18,705 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-06 17:42:18,705 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-06 17:42:18,705 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-06 17:42:18,705 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-06 17:42:18,713 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:42:18" (1/1) ... [2021-12-06 17:42:18,713 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:42:18" (1/1) ... [2021-12-06 17:42:18,724 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:42:18" (1/1) ... [2021-12-06 17:42:18,724 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:42:18" (1/1) ... [2021-12-06 17:42:18,747 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:42:18" (1/1) ... [2021-12-06 17:42:18,751 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:42:18" (1/1) ... [2021-12-06 17:42:18,756 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:42:18" (1/1) ... [2021-12-06 17:42:18,765 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-06 17:42:18,766 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-06 17:42:18,766 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-06 17:42:18,766 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-06 17:42:18,767 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:42:18" (1/1) ... [2021-12-06 17:42:18,772 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 17:42:18,782 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f8a8157-6fc9-4558-bdc7-a83757261cb7/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 17:42:18,793 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f8a8157-6fc9-4558-bdc7-a83757261cb7/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-06 17:42:18,795 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f8a8157-6fc9-4558-bdc7-a83757261cb7/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-06 17:42:18,822 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_eq_c_str [2021-12-06 17:42:18,823 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_eq_c_str [2021-12-06 17:42:18,823 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_cursor_is_valid [2021-12-06 17:42:18,823 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_cursor_is_valid [2021-12-06 17:42:18,823 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-06 17:42:18,823 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2021-12-06 17:42:18,823 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2021-12-06 17:42:18,823 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-06 17:42:18,823 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-12-06 17:42:18,823 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-12-06 17:42:18,823 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-06 17:42:18,823 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-06 17:42:18,823 INFO L130 BoogieDeclarations]: Found specification of procedure save_byte_from_array [2021-12-06 17:42:18,824 INFO L138 BoogieDeclarations]: Found implementation of procedure save_byte_from_array [2021-12-06 17:42:18,824 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-06 17:42:18,824 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-06 17:42:18,824 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-06 17:42:18,824 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2021-12-06 17:42:18,824 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2021-12-06 17:42:18,824 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2021-12-06 17:42:18,824 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2021-12-06 17:42:18,824 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-06 17:42:18,824 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-06 17:42:18,824 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-06 17:42:18,824 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-06 17:42:18,824 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-06 17:42:18,825 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2021-12-06 17:42:18,825 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2021-12-06 17:42:18,825 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-06 17:42:18,825 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-06 17:42:18,995 INFO L236 CfgBuilder]: Building ICFG [2021-12-06 17:42:18,996 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-06 17:42:19,833 INFO L277 CfgBuilder]: Performing block encoding [2021-12-06 17:42:19,838 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-06 17:42:19,838 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-06 17:42:19,840 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 05:42:19 BoogieIcfgContainer [2021-12-06 17:42:19,840 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-06 17:42:19,841 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-06 17:42:19,841 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-06 17:42:19,844 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-06 17:42:19,844 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.12 05:42:16" (1/3) ... [2021-12-06 17:42:19,844 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2692c56 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 05:42:19, skipping insertion in model container [2021-12-06 17:42:19,845 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:42:18" (2/3) ... [2021-12-06 17:42:19,845 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2692c56 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 05:42:19, skipping insertion in model container [2021-12-06 17:42:19,845 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 05:42:19" (3/3) ... [2021-12-06 17:42:19,846 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_byte_cursor_eq_c_str_harness.i [2021-12-06 17:42:19,850 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-06 17:42:19,850 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-06 17:42:19,893 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-06 17:42:19,898 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-06 17:42:19,898 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-06 17:42:19,913 INFO L276 IsEmpty]: Start isEmpty. Operand has 123 states, 81 states have (on average 1.2592592592592593) internal successors, (102), 83 states have internal predecessors, (102), 31 states have call successors, (31), 9 states have call predecessors, (31), 9 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2021-12-06 17:42:19,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-12-06 17:42:19,921 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:42:19,922 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:42:19,922 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 17:42:19,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:42:19,926 INFO L85 PathProgramCache]: Analyzing trace with hash -32550495, now seen corresponding path program 1 times [2021-12-06 17:42:19,932 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:42:19,933 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [795255158] [2021-12-06 17:42:19,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:42:19,934 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:42:20,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:42:20,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 17:42:20,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:42:20,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-12-06 17:42:20,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:42:20,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-06 17:42:20,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:42:20,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 17:42:20,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:42:20,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-06 17:42:20,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:42:20,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-12-06 17:42:20,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:42:20,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-06 17:42:20,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:42:20,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-06 17:42:20,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:42:20,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-06 17:42:20,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:42:20,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-12-06 17:42:20,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:42:20,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-06 17:42:20,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:42:20,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-12-06 17:42:20,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:42:20,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-12-06 17:42:20,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:42:20,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-06 17:42:20,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:42:20,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-12-06 17:42:20,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:42:20,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 17:42:20,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:42:20,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 17:42:20,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:42:20,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-12-06 17:42:20,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:42:20,567 INFO L134 CoverageAnalysis]: Checked inductivity of 163 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 163 trivial. 0 not checked. [2021-12-06 17:42:20,567 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 17:42:20,567 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [795255158] [2021-12-06 17:42:20,568 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [795255158] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 17:42:20,568 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 17:42:20,568 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-06 17:42:20,569 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [758429739] [2021-12-06 17:42:20,570 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 17:42:20,573 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-06 17:42:20,573 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 17:42:20,593 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-06 17:42:20,593 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-06 17:42:20,595 INFO L87 Difference]: Start difference. First operand has 123 states, 81 states have (on average 1.2592592592592593) internal successors, (102), 83 states have internal predecessors, (102), 31 states have call successors, (31), 9 states have call predecessors, (31), 9 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) Second operand has 4 states, 4 states have (on average 11.0) internal successors, (44), 2 states have internal predecessors, (44), 2 states have call successors, (19), 4 states have call predecessors, (19), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-12-06 17:42:20,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:42:20,853 INFO L93 Difference]: Finished difference Result 243 states and 348 transitions. [2021-12-06 17:42:20,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-06 17:42:20,856 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 2 states have internal predecessors, (44), 2 states have call successors, (19), 4 states have call predecessors, (19), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 116 [2021-12-06 17:42:20,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:42:20,863 INFO L225 Difference]: With dead ends: 243 [2021-12-06 17:42:20,863 INFO L226 Difference]: Without dead ends: 120 [2021-12-06 17:42:20,866 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-06 17:42:20,869 INFO L933 BasicCegarLoop]: 146 mSDtfsCounter, 103 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 221 SdHoareTripleChecker+Invalid, 163 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-06 17:42:20,870 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [104 Valid, 221 Invalid, 163 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-06 17:42:20,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2021-12-06 17:42:20,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 118. [2021-12-06 17:42:20,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118 states, 77 states have (on average 1.2207792207792207) internal successors, (94), 78 states have internal predecessors, (94), 31 states have call successors, (31), 9 states have call predecessors, (31), 9 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2021-12-06 17:42:20,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 155 transitions. [2021-12-06 17:42:20,908 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 155 transitions. Word has length 116 [2021-12-06 17:42:20,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:42:20,908 INFO L470 AbstractCegarLoop]: Abstraction has 118 states and 155 transitions. [2021-12-06 17:42:20,908 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 2 states have internal predecessors, (44), 2 states have call successors, (19), 4 states have call predecessors, (19), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-12-06 17:42:20,908 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 155 transitions. [2021-12-06 17:42:20,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-12-06 17:42:20,911 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:42:20,911 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:42:20,911 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-06 17:42:20,911 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 17:42:20,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:42:20,912 INFO L85 PathProgramCache]: Analyzing trace with hash 1139488593, now seen corresponding path program 1 times [2021-12-06 17:42:20,912 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:42:20,912 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2131732123] [2021-12-06 17:42:20,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:42:20,913 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:42:20,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:42:21,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 17:42:21,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:42:21,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-12-06 17:42:21,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:42:21,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-06 17:42:21,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:42:21,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 17:42:21,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:42:21,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-06 17:42:21,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:42:21,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-12-06 17:42:21,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:42:21,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-06 17:42:21,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:42:21,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-06 17:42:21,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:42:21,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-06 17:42:21,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:42:21,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-12-06 17:42:21,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:42:21,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-06 17:42:21,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:42:21,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-12-06 17:42:21,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:42:21,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-12-06 17:42:21,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:42:21,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-06 17:42:21,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:42:21,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-12-06 17:42:21,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:42:21,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 17:42:21,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:42:21,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 17:42:21,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:42:21,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-12-06 17:42:21,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:42:21,343 INFO L134 CoverageAnalysis]: Checked inductivity of 163 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 155 trivial. 0 not checked. [2021-12-06 17:42:21,343 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 17:42:21,343 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2131732123] [2021-12-06 17:42:21,344 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2131732123] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 17:42:21,344 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [545211238] [2021-12-06 17:42:21,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:42:21,344 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 17:42:21,344 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f8a8157-6fc9-4558-bdc7-a83757261cb7/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 17:42:21,345 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f8a8157-6fc9-4558-bdc7-a83757261cb7/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 17:42:21,346 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f8a8157-6fc9-4558-bdc7-a83757261cb7/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-06 17:42:21,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:42:21,721 INFO L263 TraceCheckSpWp]: Trace formula consists of 2650 conjuncts, 6 conjunts are in the unsatisfiable core [2021-12-06 17:42:21,731 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 17:42:21,985 INFO L134 CoverageAnalysis]: Checked inductivity of 163 backedges. 90 proven. 0 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2021-12-06 17:42:21,985 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 17:42:21,985 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [545211238] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 17:42:21,986 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-06 17:42:21,986 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 11 [2021-12-06 17:42:21,986 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [257675978] [2021-12-06 17:42:21,987 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 17:42:21,987 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-06 17:42:21,988 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 17:42:21,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-06 17:42:21,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2021-12-06 17:42:21,989 INFO L87 Difference]: Start difference. First operand 118 states and 155 transitions. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 3 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2021-12-06 17:42:22,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:42:22,111 INFO L93 Difference]: Finished difference Result 211 states and 280 transitions. [2021-12-06 17:42:22,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-06 17:42:22,112 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 3 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 116 [2021-12-06 17:42:22,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:42:22,113 INFO L225 Difference]: With dead ends: 211 [2021-12-06 17:42:22,114 INFO L226 Difference]: Without dead ends: 121 [2021-12-06 17:42:22,115 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 158 GetRequests, 146 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2021-12-06 17:42:22,116 INFO L933 BasicCegarLoop]: 116 mSDtfsCounter, 174 mSDsluCounter, 197 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 174 SdHoareTripleChecker+Valid, 313 SdHoareTripleChecker+Invalid, 137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 17:42:22,116 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [174 Valid, 313 Invalid, 137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 17:42:22,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2021-12-06 17:42:22,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 121. [2021-12-06 17:42:22,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 79 states have (on average 1.2151898734177216) internal successors, (96), 81 states have internal predecessors, (96), 31 states have call successors, (31), 9 states have call predecessors, (31), 10 states have return successors, (32), 30 states have call predecessors, (32), 30 states have call successors, (32) [2021-12-06 17:42:22,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 159 transitions. [2021-12-06 17:42:22,130 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 159 transitions. Word has length 116 [2021-12-06 17:42:22,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:42:22,130 INFO L470 AbstractCegarLoop]: Abstraction has 121 states and 159 transitions. [2021-12-06 17:42:22,130 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 3 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2021-12-06 17:42:22,130 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 159 transitions. [2021-12-06 17:42:22,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2021-12-06 17:42:22,132 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:42:22,132 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:42:22,158 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f8a8157-6fc9-4558-bdc7-a83757261cb7/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-12-06 17:42:22,333 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f8a8157-6fc9-4558-bdc7-a83757261cb7/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2021-12-06 17:42:22,333 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 17:42:22,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:42:22,334 INFO L85 PathProgramCache]: Analyzing trace with hash -787565290, now seen corresponding path program 1 times [2021-12-06 17:42:22,334 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:42:22,334 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1059591155] [2021-12-06 17:42:22,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:42:22,334 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:42:22,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:42:22,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 17:42:22,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:42:22,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-12-06 17:42:22,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:42:22,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-06 17:42:22,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:42:22,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 17:42:22,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:42:22,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-06 17:42:22,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:42:22,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-12-06 17:42:22,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:42:22,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-06 17:42:22,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:42:22,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-06 17:42:22,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:42:22,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-06 17:42:22,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:42:22,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-06 17:42:22,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:42:22,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-06 17:42:22,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:42:22,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-12-06 17:42:22,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:42:22,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-06 17:42:22,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:42:22,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-12-06 17:42:22,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:42:22,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2021-12-06 17:42:22,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:42:22,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 17:42:22,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:42:22,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 17:42:22,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:42:22,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2021-12-06 17:42:22,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:42:22,724 INFO L134 CoverageAnalysis]: Checked inductivity of 163 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 155 trivial. 0 not checked. [2021-12-06 17:42:22,725 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 17:42:22,725 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1059591155] [2021-12-06 17:42:22,725 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1059591155] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 17:42:22,725 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2023947694] [2021-12-06 17:42:22,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:42:22,726 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 17:42:22,726 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f8a8157-6fc9-4558-bdc7-a83757261cb7/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 17:42:22,726 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f8a8157-6fc9-4558-bdc7-a83757261cb7/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 17:42:22,727 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f8a8157-6fc9-4558-bdc7-a83757261cb7/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-12-06 17:42:23,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:42:23,031 INFO L263 TraceCheckSpWp]: Trace formula consists of 2655 conjuncts, 8 conjunts are in the unsatisfiable core [2021-12-06 17:42:23,036 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 17:42:23,220 INFO L134 CoverageAnalysis]: Checked inductivity of 163 backedges. 94 proven. 0 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2021-12-06 17:42:23,220 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 17:42:23,220 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2023947694] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 17:42:23,220 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-06 17:42:23,220 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [8] total 13 [2021-12-06 17:42:23,221 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1473466921] [2021-12-06 17:42:23,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 17:42:23,221 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-06 17:42:23,221 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 17:42:23,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-06 17:42:23,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2021-12-06 17:42:23,222 INFO L87 Difference]: Start difference. First operand 121 states and 159 transitions. Second operand has 7 states, 6 states have (on average 9.5) internal successors, (57), 7 states have internal predecessors, (57), 4 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) [2021-12-06 17:42:23,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:42:23,350 INFO L93 Difference]: Finished difference Result 198 states and 259 transitions. [2021-12-06 17:42:23,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-06 17:42:23,351 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 9.5) internal successors, (57), 7 states have internal predecessors, (57), 4 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) Word has length 118 [2021-12-06 17:42:23,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:42:23,352 INFO L225 Difference]: With dead ends: 198 [2021-12-06 17:42:23,353 INFO L226 Difference]: Without dead ends: 118 [2021-12-06 17:42:23,354 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=219, Unknown=0, NotChecked=0, Total=272 [2021-12-06 17:42:23,354 INFO L933 BasicCegarLoop]: 115 mSDtfsCounter, 191 mSDsluCounter, 395 mSDsCounter, 0 mSdLazyCounter, 150 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 191 SdHoareTripleChecker+Valid, 510 SdHoareTripleChecker+Invalid, 206 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 150 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 17:42:23,355 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [191 Valid, 510 Invalid, 206 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 150 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 17:42:23,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2021-12-06 17:42:23,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 118. [2021-12-06 17:42:23,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118 states, 77 states have (on average 1.2077922077922079) internal successors, (93), 78 states have internal predecessors, (93), 31 states have call successors, (31), 9 states have call predecessors, (31), 9 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2021-12-06 17:42:23,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 154 transitions. [2021-12-06 17:42:23,365 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 154 transitions. Word has length 118 [2021-12-06 17:42:23,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:42:23,366 INFO L470 AbstractCegarLoop]: Abstraction has 118 states and 154 transitions. [2021-12-06 17:42:23,366 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 9.5) internal successors, (57), 7 states have internal predecessors, (57), 4 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) [2021-12-06 17:42:23,366 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 154 transitions. [2021-12-06 17:42:23,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2021-12-06 17:42:23,368 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:42:23,368 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:42:23,405 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f8a8157-6fc9-4558-bdc7-a83757261cb7/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2021-12-06 17:42:23,569 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f8a8157-6fc9-4558-bdc7-a83757261cb7/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 17:42:23,570 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 17:42:23,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:42:23,571 INFO L85 PathProgramCache]: Analyzing trace with hash -1485450464, now seen corresponding path program 1 times [2021-12-06 17:42:23,571 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:42:23,571 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1526644651] [2021-12-06 17:42:23,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:42:23,572 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:42:23,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:42:23,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 17:42:23,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:42:23,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-12-06 17:42:23,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:42:23,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-06 17:42:23,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:42:23,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 17:42:23,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:42:23,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-06 17:42:23,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:42:23,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-12-06 17:42:23,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:42:23,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-06 17:42:23,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:42:23,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-06 17:42:23,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:42:23,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-06 17:42:23,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:42:23,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-06 17:42:23,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:42:23,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-06 17:42:23,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:42:23,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-12-06 17:42:23,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:42:23,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-06 17:42:23,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:42:23,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-12-06 17:42:23,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:42:23,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-06 17:42:23,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:42:23,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 17:42:23,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:42:23,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 17:42:23,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:42:23,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-12-06 17:42:23,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:42:24,032 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 161 trivial. 0 not checked. [2021-12-06 17:42:24,033 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 17:42:24,033 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1526644651] [2021-12-06 17:42:24,033 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1526644651] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 17:42:24,033 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 17:42:24,034 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-12-06 17:42:24,034 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [541702559] [2021-12-06 17:42:24,034 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 17:42:24,035 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-12-06 17:42:24,035 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 17:42:24,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-12-06 17:42:24,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-12-06 17:42:24,036 INFO L87 Difference]: Start difference. First operand 118 states and 154 transitions. Second operand has 10 states, 9 states have (on average 5.555555555555555) internal successors, (50), 6 states have internal predecessors, (50), 2 states have call successors, (19), 4 states have call predecessors, (19), 2 states have return successors, (18), 2 states have call predecessors, (18), 1 states have call successors, (18) [2021-12-06 17:42:24,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:42:24,434 INFO L93 Difference]: Finished difference Result 132 states and 172 transitions. [2021-12-06 17:42:24,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-06 17:42:24,435 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 5.555555555555555) internal successors, (50), 6 states have internal predecessors, (50), 2 states have call successors, (19), 4 states have call predecessors, (19), 2 states have return successors, (18), 2 states have call predecessors, (18), 1 states have call successors, (18) Word has length 122 [2021-12-06 17:42:24,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:42:24,437 INFO L225 Difference]: With dead ends: 132 [2021-12-06 17:42:24,437 INFO L226 Difference]: Without dead ends: 130 [2021-12-06 17:42:24,437 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=55, Invalid=185, Unknown=0, NotChecked=0, Total=240 [2021-12-06 17:42:24,438 INFO L933 BasicCegarLoop]: 135 mSDtfsCounter, 125 mSDsluCounter, 640 mSDsCounter, 0 mSdLazyCounter, 443 mSolverCounterSat, 77 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 775 SdHoareTripleChecker+Invalid, 520 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 77 IncrementalHoareTripleChecker+Valid, 443 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-06 17:42:24,438 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [127 Valid, 775 Invalid, 520 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [77 Valid, 443 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-06 17:42:24,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2021-12-06 17:42:24,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 127. [2021-12-06 17:42:24,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127 states, 83 states have (on average 1.1927710843373494) internal successors, (99), 85 states have internal predecessors, (99), 32 states have call successors, (32), 10 states have call predecessors, (32), 11 states have return successors, (35), 31 states have call predecessors, (35), 31 states have call successors, (35) [2021-12-06 17:42:24,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 166 transitions. [2021-12-06 17:42:24,450 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 166 transitions. Word has length 122 [2021-12-06 17:42:24,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:42:24,451 INFO L470 AbstractCegarLoop]: Abstraction has 127 states and 166 transitions. [2021-12-06 17:42:24,451 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 5.555555555555555) internal successors, (50), 6 states have internal predecessors, (50), 2 states have call successors, (19), 4 states have call predecessors, (19), 2 states have return successors, (18), 2 states have call predecessors, (18), 1 states have call successors, (18) [2021-12-06 17:42:24,451 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 166 transitions. [2021-12-06 17:42:24,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2021-12-06 17:42:24,453 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:42:24,454 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:42:24,454 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-06 17:42:24,454 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 17:42:24,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:42:24,454 INFO L85 PathProgramCache]: Analyzing trace with hash 52780584, now seen corresponding path program 1 times [2021-12-06 17:42:24,455 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:42:24,455 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1067427360] [2021-12-06 17:42:24,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:42:24,455 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:42:24,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:42:24,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 17:42:24,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:42:24,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-12-06 17:42:24,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:42:24,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-06 17:42:24,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:42:24,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 17:42:24,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:42:24,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-06 17:42:24,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:42:24,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-12-06 17:42:24,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:42:24,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-06 17:42:24,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:42:24,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-06 17:42:24,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:42:24,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-06 17:42:24,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:42:24,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-06 17:42:24,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:42:25,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-06 17:42:25,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:42:25,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-12-06 17:42:25,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:42:25,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-06 17:42:25,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:42:25,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-12-06 17:42:25,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:42:25,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-06 17:42:25,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:42:25,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 17:42:25,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:42:25,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 17:42:25,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:42:25,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-12-06 17:42:25,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:42:25,205 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 8 proven. 12 refuted. 0 times theorem prover too weak. 149 trivial. 0 not checked. [2021-12-06 17:42:25,205 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 17:42:25,205 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1067427360] [2021-12-06 17:42:25,205 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1067427360] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 17:42:25,205 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [39091269] [2021-12-06 17:42:25,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:42:25,205 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 17:42:25,206 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f8a8157-6fc9-4558-bdc7-a83757261cb7/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 17:42:25,206 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f8a8157-6fc9-4558-bdc7-a83757261cb7/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 17:42:25,207 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f8a8157-6fc9-4558-bdc7-a83757261cb7/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-12-06 17:42:25,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:42:25,477 INFO L263 TraceCheckSpWp]: Trace formula consists of 2677 conjuncts, 48 conjunts are in the unsatisfiable core [2021-12-06 17:42:25,482 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 17:42:26,470 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 90 proven. 10 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2021-12-06 17:42:26,470 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 17:42:26,930 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 14 [2021-12-06 17:42:26,962 INFO L354 Elim1Store]: treesize reduction 4, result has 63.6 percent of original size [2021-12-06 17:42:26,963 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 30 treesize of output 25 [2021-12-06 17:42:27,003 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 6 proven. 12 refuted. 0 times theorem prover too weak. 151 trivial. 0 not checked. [2021-12-06 17:42:27,003 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [39091269] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-06 17:42:27,003 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-06 17:42:27,003 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 14, 11] total 28 [2021-12-06 17:42:27,003 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [903096478] [2021-12-06 17:42:27,003 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-06 17:42:27,004 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2021-12-06 17:42:27,004 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 17:42:27,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-12-06 17:42:27,005 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=661, Unknown=0, NotChecked=0, Total=756 [2021-12-06 17:42:27,005 INFO L87 Difference]: Start difference. First operand 127 states and 166 transitions. Second operand has 28 states, 26 states have (on average 4.538461538461538) internal successors, (118), 26 states have internal predecessors, (118), 10 states have call successors, (39), 7 states have call predecessors, (39), 8 states have return successors, (37), 8 states have call predecessors, (37), 9 states have call successors, (37) [2021-12-06 17:42:29,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:42:29,406 INFO L93 Difference]: Finished difference Result 351 states and 486 transitions. [2021-12-06 17:42:29,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-12-06 17:42:29,407 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 26 states have (on average 4.538461538461538) internal successors, (118), 26 states have internal predecessors, (118), 10 states have call successors, (39), 7 states have call predecessors, (39), 8 states have return successors, (37), 8 states have call predecessors, (37), 9 states have call successors, (37) Word has length 126 [2021-12-06 17:42:29,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:42:29,410 INFO L225 Difference]: With dead ends: 351 [2021-12-06 17:42:29,411 INFO L226 Difference]: Without dead ends: 291 [2021-12-06 17:42:29,412 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 323 GetRequests, 262 SyntacticMatches, 15 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 666 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=376, Invalid=1880, Unknown=0, NotChecked=0, Total=2256 [2021-12-06 17:42:29,412 INFO L933 BasicCegarLoop]: 194 mSDtfsCounter, 281 mSDsluCounter, 1205 mSDsCounter, 0 mSdLazyCounter, 2937 mSolverCounterSat, 159 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 323 SdHoareTripleChecker+Valid, 1399 SdHoareTripleChecker+Invalid, 3582 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 159 IncrementalHoareTripleChecker+Valid, 2937 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 486 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2021-12-06 17:42:29,413 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [323 Valid, 1399 Invalid, 3582 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [159 Valid, 2937 Invalid, 0 Unknown, 486 Unchecked, 1.8s Time] [2021-12-06 17:42:29,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 291 states. [2021-12-06 17:42:29,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 291 to 183. [2021-12-06 17:42:29,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 183 states, 119 states have (on average 1.1764705882352942) internal successors, (140), 123 states have internal predecessors, (140), 46 states have call successors, (46), 14 states have call predecessors, (46), 17 states have return successors, (56), 45 states have call predecessors, (56), 45 states have call successors, (56) [2021-12-06 17:42:29,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 242 transitions. [2021-12-06 17:42:29,434 INFO L78 Accepts]: Start accepts. Automaton has 183 states and 242 transitions. Word has length 126 [2021-12-06 17:42:29,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:42:29,434 INFO L470 AbstractCegarLoop]: Abstraction has 183 states and 242 transitions. [2021-12-06 17:42:29,435 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 26 states have (on average 4.538461538461538) internal successors, (118), 26 states have internal predecessors, (118), 10 states have call successors, (39), 7 states have call predecessors, (39), 8 states have return successors, (37), 8 states have call predecessors, (37), 9 states have call successors, (37) [2021-12-06 17:42:29,435 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 242 transitions. [2021-12-06 17:42:29,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2021-12-06 17:42:29,436 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:42:29,436 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:42:29,459 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f8a8157-6fc9-4558-bdc7-a83757261cb7/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2021-12-06 17:42:29,637 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f8a8157-6fc9-4558-bdc7-a83757261cb7/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 17:42:29,638 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 17:42:29,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:42:29,639 INFO L85 PathProgramCache]: Analyzing trace with hash 858129715, now seen corresponding path program 1 times [2021-12-06 17:42:29,640 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:42:29,640 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [308402523] [2021-12-06 17:42:29,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:42:29,641 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:42:29,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:42:29,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 17:42:29,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:42:29,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-12-06 17:42:29,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:42:29,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-06 17:42:29,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:42:29,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 17:42:29,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:42:30,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-06 17:42:30,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:42:30,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-12-06 17:42:30,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:42:30,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-06 17:42:30,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:42:30,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-06 17:42:30,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:42:30,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-06 17:42:30,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:42:30,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-06 17:42:30,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:42:30,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-06 17:42:30,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:42:30,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 17:42:30,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:42:30,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-12-06 17:42:30,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:42:30,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-06 17:42:30,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:42:30,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-12-06 17:42:30,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:42:30,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-12-06 17:42:30,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:42:30,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 17:42:30,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:42:30,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 17:42:30,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:42:30,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-12-06 17:42:30,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:42:30,284 INFO L134 CoverageAnalysis]: Checked inductivity of 209 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 193 trivial. 0 not checked. [2021-12-06 17:42:30,284 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 17:42:30,284 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [308402523] [2021-12-06 17:42:30,284 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [308402523] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 17:42:30,284 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 17:42:30,284 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2021-12-06 17:42:30,285 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1723247208] [2021-12-06 17:42:30,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 17:42:30,285 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-12-06 17:42:30,285 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 17:42:30,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-12-06 17:42:30,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2021-12-06 17:42:30,286 INFO L87 Difference]: Start difference. First operand 183 states and 242 transitions. Second operand has 14 states, 13 states have (on average 4.923076923076923) internal successors, (64), 12 states have internal predecessors, (64), 5 states have call successors, (20), 4 states have call predecessors, (20), 3 states have return successors, (19), 4 states have call predecessors, (19), 4 states have call successors, (19) [2021-12-06 17:42:30,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:42:30,944 INFO L93 Difference]: Finished difference Result 282 states and 379 transitions. [2021-12-06 17:42:30,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-12-06 17:42:30,944 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 4.923076923076923) internal successors, (64), 12 states have internal predecessors, (64), 5 states have call successors, (20), 4 states have call predecessors, (20), 3 states have return successors, (19), 4 states have call predecessors, (19), 4 states have call successors, (19) Word has length 137 [2021-12-06 17:42:30,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:42:30,946 INFO L225 Difference]: With dead ends: 282 [2021-12-06 17:42:30,946 INFO L226 Difference]: Without dead ends: 222 [2021-12-06 17:42:30,947 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=90, Invalid=372, Unknown=0, NotChecked=0, Total=462 [2021-12-06 17:42:30,948 INFO L933 BasicCegarLoop]: 139 mSDtfsCounter, 199 mSDsluCounter, 607 mSDsCounter, 0 mSdLazyCounter, 847 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 213 SdHoareTripleChecker+Valid, 746 SdHoareTripleChecker+Invalid, 933 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 847 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-12-06 17:42:30,948 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [213 Valid, 746 Invalid, 933 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 847 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-12-06 17:42:30,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 222 states. [2021-12-06 17:42:30,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 222 to 187. [2021-12-06 17:42:30,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 187 states, 122 states have (on average 1.180327868852459) internal successors, (144), 127 states have internal predecessors, (144), 46 states have call successors, (46), 14 states have call predecessors, (46), 18 states have return successors, (58), 45 states have call predecessors, (58), 45 states have call successors, (58) [2021-12-06 17:42:30,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 248 transitions. [2021-12-06 17:42:30,963 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 248 transitions. Word has length 137 [2021-12-06 17:42:30,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:42:30,963 INFO L470 AbstractCegarLoop]: Abstraction has 187 states and 248 transitions. [2021-12-06 17:42:30,964 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 4.923076923076923) internal successors, (64), 12 states have internal predecessors, (64), 5 states have call successors, (20), 4 states have call predecessors, (20), 3 states have return successors, (19), 4 states have call predecessors, (19), 4 states have call successors, (19) [2021-12-06 17:42:30,964 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 248 transitions. [2021-12-06 17:42:30,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2021-12-06 17:42:30,965 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:42:30,965 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:42:30,965 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-06 17:42:30,965 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 17:42:30,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:42:30,966 INFO L85 PathProgramCache]: Analyzing trace with hash 1482930720, now seen corresponding path program 1 times [2021-12-06 17:42:30,966 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:42:30,966 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1709291990] [2021-12-06 17:42:30,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:42:30,966 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:42:31,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:42:31,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 17:42:31,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:42:31,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-12-06 17:42:31,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:42:31,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-06 17:42:31,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:42:31,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 17:42:31,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:42:31,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-06 17:42:31,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:42:31,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-12-06 17:42:31,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:42:31,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-06 17:42:31,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:42:31,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-06 17:42:31,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:42:31,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-06 17:42:31,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:42:31,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-06 17:42:31,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:42:31,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-06 17:42:31,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:42:31,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 17:42:31,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:42:31,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-12-06 17:42:31,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:42:31,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-06 17:42:31,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:42:31,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-12-06 17:42:31,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:42:31,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-12-06 17:42:31,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:42:31,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 17:42:31,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:42:31,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 17:42:31,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:42:31,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-12-06 17:42:31,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:42:31,751 INFO L134 CoverageAnalysis]: Checked inductivity of 209 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 194 trivial. 0 not checked. [2021-12-06 17:42:31,751 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 17:42:31,751 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1709291990] [2021-12-06 17:42:31,751 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1709291990] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 17:42:31,751 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1573499160] [2021-12-06 17:42:31,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:42:31,752 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 17:42:31,752 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f8a8157-6fc9-4558-bdc7-a83757261cb7/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 17:42:31,752 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f8a8157-6fc9-4558-bdc7-a83757261cb7/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 17:42:31,753 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f8a8157-6fc9-4558-bdc7-a83757261cb7/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-12-06 17:42:32,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:42:32,065 INFO L263 TraceCheckSpWp]: Trace formula consists of 2738 conjuncts, 24 conjunts are in the unsatisfiable core [2021-12-06 17:42:32,070 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 17:42:32,296 INFO L134 CoverageAnalysis]: Checked inductivity of 209 backedges. 124 proven. 0 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2021-12-06 17:42:32,296 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 17:42:32,297 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1573499160] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 17:42:32,297 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-06 17:42:32,297 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [25] total 32 [2021-12-06 17:42:32,297 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [111793821] [2021-12-06 17:42:32,297 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 17:42:32,297 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-06 17:42:32,298 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 17:42:32,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-06 17:42:32,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=913, Unknown=0, NotChecked=0, Total=992 [2021-12-06 17:42:32,298 INFO L87 Difference]: Start difference. First operand 187 states and 248 transitions. Second operand has 9 states, 8 states have (on average 9.125) internal successors, (73), 8 states have internal predecessors, (73), 3 states have call successors, (20), 2 states have call predecessors, (20), 4 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2021-12-06 17:42:32,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:42:32,424 INFO L93 Difference]: Finished difference Result 319 states and 414 transitions. [2021-12-06 17:42:32,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-06 17:42:32,424 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 9.125) internal successors, (73), 8 states have internal predecessors, (73), 3 states have call successors, (20), 2 states have call predecessors, (20), 4 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 137 [2021-12-06 17:42:32,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:42:32,426 INFO L225 Difference]: With dead ends: 319 [2021-12-06 17:42:32,426 INFO L226 Difference]: Without dead ends: 187 [2021-12-06 17:42:32,427 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 199 GetRequests, 165 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 224 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=95, Invalid=1095, Unknown=0, NotChecked=0, Total=1190 [2021-12-06 17:42:32,427 INFO L933 BasicCegarLoop]: 147 mSDtfsCounter, 12 mSDsluCounter, 974 mSDsCounter, 0 mSdLazyCounter, 154 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 1121 SdHoareTripleChecker+Invalid, 156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 154 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 17:42:32,428 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12 Valid, 1121 Invalid, 156 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 154 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 17:42:32,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187 states. [2021-12-06 17:42:32,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 187. [2021-12-06 17:42:32,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 187 states, 122 states have (on average 1.1721311475409837) internal successors, (143), 127 states have internal predecessors, (143), 46 states have call successors, (46), 14 states have call predecessors, (46), 18 states have return successors, (60), 45 states have call predecessors, (60), 45 states have call successors, (60) [2021-12-06 17:42:32,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 249 transitions. [2021-12-06 17:42:32,441 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 249 transitions. Word has length 137 [2021-12-06 17:42:32,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:42:32,442 INFO L470 AbstractCegarLoop]: Abstraction has 187 states and 249 transitions. [2021-12-06 17:42:32,442 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 9.125) internal successors, (73), 8 states have internal predecessors, (73), 3 states have call successors, (20), 2 states have call predecessors, (20), 4 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2021-12-06 17:42:32,442 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 249 transitions. [2021-12-06 17:42:32,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2021-12-06 17:42:32,443 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:42:32,443 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:42:32,480 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f8a8157-6fc9-4558-bdc7-a83757261cb7/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2021-12-06 17:42:32,644 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f8a8157-6fc9-4558-bdc7-a83757261cb7/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2021-12-06 17:42:32,644 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 17:42:32,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:42:32,645 INFO L85 PathProgramCache]: Analyzing trace with hash -1856405115, now seen corresponding path program 1 times [2021-12-06 17:42:32,645 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:42:32,645 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2141346663] [2021-12-06 17:42:32,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:42:32,645 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:42:32,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:42:32,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 17:42:32,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:42:33,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-12-06 17:42:33,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:42:33,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-06 17:42:33,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:42:33,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 17:42:33,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:42:33,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-06 17:42:33,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:42:33,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-12-06 17:42:33,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:42:33,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-06 17:42:33,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:42:33,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-06 17:42:33,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:42:33,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-06 17:42:33,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:42:33,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-06 17:42:33,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:42:33,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-06 17:42:33,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:42:33,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 17:42:33,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:42:33,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-12-06 17:42:33,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:42:33,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-12-06 17:42:33,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:42:33,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-06 17:42:33,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:42:33,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-06 17:42:33,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:42:33,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 17:42:33,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:42:33,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 17:42:33,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:42:33,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2021-12-06 17:42:33,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:42:33,414 INFO L134 CoverageAnalysis]: Checked inductivity of 209 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 194 trivial. 0 not checked. [2021-12-06 17:42:33,415 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 17:42:33,415 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2141346663] [2021-12-06 17:42:33,415 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2141346663] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 17:42:33,415 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1996961045] [2021-12-06 17:42:33,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:42:33,415 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 17:42:33,415 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f8a8157-6fc9-4558-bdc7-a83757261cb7/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 17:42:33,416 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f8a8157-6fc9-4558-bdc7-a83757261cb7/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 17:42:33,416 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f8a8157-6fc9-4558-bdc7-a83757261cb7/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-12-06 17:42:33,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:42:33,694 INFO L263 TraceCheckSpWp]: Trace formula consists of 2743 conjuncts, 8 conjunts are in the unsatisfiable core [2021-12-06 17:42:33,698 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 17:42:33,894 INFO L134 CoverageAnalysis]: Checked inductivity of 209 backedges. 114 proven. 0 refuted. 0 times theorem prover too weak. 95 trivial. 0 not checked. [2021-12-06 17:42:33,894 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 17:42:33,894 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1996961045] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 17:42:33,894 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-06 17:42:33,895 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [25] total 28 [2021-12-06 17:42:33,895 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1268022663] [2021-12-06 17:42:33,895 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 17:42:33,895 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 17:42:33,895 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 17:42:33,896 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 17:42:33,896 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=686, Unknown=0, NotChecked=0, Total=756 [2021-12-06 17:42:33,896 INFO L87 Difference]: Start difference. First operand 187 states and 249 transitions. Second operand has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-12-06 17:42:34,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:42:34,034 INFO L93 Difference]: Finished difference Result 304 states and 409 transitions. [2021-12-06 17:42:34,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-06 17:42:34,034 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 139 [2021-12-06 17:42:34,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:42:34,036 INFO L225 Difference]: With dead ends: 304 [2021-12-06 17:42:34,036 INFO L226 Difference]: Without dead ends: 187 [2021-12-06 17:42:34,037 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 200 GetRequests, 171 SyntacticMatches, 1 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 168 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=82, Invalid=788, Unknown=0, NotChecked=0, Total=870 [2021-12-06 17:42:34,037 INFO L933 BasicCegarLoop]: 154 mSDtfsCounter, 17 mSDsluCounter, 372 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 526 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 31 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 17:42:34,037 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [17 Valid, 526 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 59 Invalid, 0 Unknown, 31 Unchecked, 0.1s Time] [2021-12-06 17:42:34,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187 states. [2021-12-06 17:42:34,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 187. [2021-12-06 17:42:34,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 187 states, 122 states have (on average 1.1639344262295082) internal successors, (142), 127 states have internal predecessors, (142), 46 states have call successors, (46), 14 states have call predecessors, (46), 18 states have return successors, (60), 45 states have call predecessors, (60), 45 states have call successors, (60) [2021-12-06 17:42:34,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 248 transitions. [2021-12-06 17:42:34,049 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 248 transitions. Word has length 139 [2021-12-06 17:42:34,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:42:34,050 INFO L470 AbstractCegarLoop]: Abstraction has 187 states and 248 transitions. [2021-12-06 17:42:34,050 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-12-06 17:42:34,050 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 248 transitions. [2021-12-06 17:42:34,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2021-12-06 17:42:34,051 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:42:34,051 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:42:34,076 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f8a8157-6fc9-4558-bdc7-a83757261cb7/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2021-12-06 17:42:34,252 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f8a8157-6fc9-4558-bdc7-a83757261cb7/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 17:42:34,253 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 17:42:34,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:42:34,255 INFO L85 PathProgramCache]: Analyzing trace with hash -1412504441, now seen corresponding path program 1 times [2021-12-06 17:42:34,255 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:42:34,255 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [874958410] [2021-12-06 17:42:34,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:42:34,256 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:42:34,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:42:34,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 17:42:34,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:42:34,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-12-06 17:42:34,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:42:34,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-06 17:42:34,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:42:34,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 17:42:34,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:42:34,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-06 17:42:34,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:42:34,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-12-06 17:42:34,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:42:34,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-06 17:42:34,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:42:34,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-06 17:42:34,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:42:34,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-06 17:42:34,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:42:34,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-06 17:42:34,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:42:34,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-06 17:42:34,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:42:34,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 17:42:34,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:42:34,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-12-06 17:42:34,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:42:34,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-12-06 17:42:34,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:42:34,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-06 17:42:34,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:42:34,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-06 17:42:34,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:42:34,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 17:42:34,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:42:34,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 17:42:34,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:42:34,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2021-12-06 17:42:34,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:42:34,976 INFO L134 CoverageAnalysis]: Checked inductivity of 209 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 194 trivial. 0 not checked. [2021-12-06 17:42:34,976 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 17:42:34,977 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [874958410] [2021-12-06 17:42:34,977 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [874958410] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 17:42:34,977 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [83975244] [2021-12-06 17:42:34,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:42:34,977 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 17:42:34,977 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f8a8157-6fc9-4558-bdc7-a83757261cb7/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 17:42:34,978 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f8a8157-6fc9-4558-bdc7-a83757261cb7/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 17:42:34,979 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f8a8157-6fc9-4558-bdc7-a83757261cb7/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-12-06 17:42:35,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:42:35,271 INFO L263 TraceCheckSpWp]: Trace formula consists of 2748 conjuncts, 84 conjunts are in the unsatisfiable core [2021-12-06 17:42:35,275 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 17:42:35,695 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 6 treesize of output 5 [2021-12-06 17:42:35,705 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 13 treesize of output 9 [2021-12-06 17:42:35,709 WARN L860 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_438 (Array Int Int)) (|save_byte_from_array_~storage#1.base| Int)) (= |c_#memory_int| (store |c_old(#memory_int)| |save_byte_from_array_~storage#1.base| v_ArrVal_438))) is different from true [2021-12-06 17:42:35,725 INFO L354 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2021-12-06 17:42:35,726 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 30 [2021-12-06 17:42:35,732 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2021-12-06 17:42:53,266 INFO L134 CoverageAnalysis]: Checked inductivity of 209 backedges. 104 proven. 36 refuted. 0 times theorem prover too weak. 67 trivial. 2 not checked. [2021-12-06 17:42:53,266 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 17:42:54,010 INFO L354 Elim1Store]: treesize reduction 8, result has 46.7 percent of original size [2021-12-06 17:42:54,010 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 30 treesize of output 25 [2021-12-06 17:42:54,171 INFO L134 CoverageAnalysis]: Checked inductivity of 209 backedges. 12 proven. 10 refuted. 0 times theorem prover too weak. 187 trivial. 0 not checked. [2021-12-06 17:42:54,171 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [83975244] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-06 17:42:54,171 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-06 17:42:54,171 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 27, 13] total 58 [2021-12-06 17:42:54,172 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [74307442] [2021-12-06 17:42:54,172 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-06 17:42:54,172 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 58 states [2021-12-06 17:42:54,172 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 17:42:54,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 58 interpolants. [2021-12-06 17:42:54,174 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=219, Invalid=2973, Unknown=4, NotChecked=110, Total=3306 [2021-12-06 17:42:54,174 INFO L87 Difference]: Start difference. First operand 187 states and 248 transitions. Second operand has 58 states, 52 states have (on average 3.4423076923076925) internal successors, (179), 55 states have internal predecessors, (179), 21 states have call successors, (57), 7 states have call predecessors, (57), 14 states have return successors, (56), 16 states have call predecessors, (56), 21 states have call successors, (56) [2021-12-06 17:43:09,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:43:09,555 INFO L93 Difference]: Finished difference Result 507 states and 711 transitions. [2021-12-06 17:43:09,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2021-12-06 17:43:09,556 INFO L78 Accepts]: Start accepts. Automaton has has 58 states, 52 states have (on average 3.4423076923076925) internal successors, (179), 55 states have internal predecessors, (179), 21 states have call successors, (57), 7 states have call predecessors, (57), 14 states have return successors, (56), 16 states have call predecessors, (56), 21 states have call successors, (56) Word has length 139 [2021-12-06 17:43:09,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:43:09,558 INFO L225 Difference]: With dead ends: 507 [2021-12-06 17:43:09,558 INFO L226 Difference]: Without dead ends: 364 [2021-12-06 17:43:09,562 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 415 GetRequests, 285 SyntacticMatches, 14 SemanticMatches, 116 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 3839 ImplicationChecksByTransitivity, 29.5s TimeCoverageRelationStatistics Valid=1231, Invalid=12317, Unknown=28, NotChecked=230, Total=13806 [2021-12-06 17:43:09,563 INFO L933 BasicCegarLoop]: 180 mSDtfsCounter, 977 mSDsluCounter, 2571 mSDsCounter, 0 mSdLazyCounter, 6663 mSolverCounterSat, 987 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 991 SdHoareTripleChecker+Valid, 2751 SdHoareTripleChecker+Invalid, 9826 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 987 IncrementalHoareTripleChecker+Valid, 6663 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 2176 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2021-12-06 17:43:09,563 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [991 Valid, 2751 Invalid, 9826 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [987 Valid, 6663 Invalid, 0 Unknown, 2176 Unchecked, 3.9s Time] [2021-12-06 17:43:09,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 364 states. [2021-12-06 17:43:09,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 364 to 239. [2021-12-06 17:43:09,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 239 states, 156 states have (on average 1.1346153846153846) internal successors, (177), 159 states have internal predecessors, (177), 61 states have call successors, (61), 19 states have call predecessors, (61), 21 states have return successors, (71), 60 states have call predecessors, (71), 60 states have call successors, (71) [2021-12-06 17:43:09,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 309 transitions. [2021-12-06 17:43:09,582 INFO L78 Accepts]: Start accepts. Automaton has 239 states and 309 transitions. Word has length 139 [2021-12-06 17:43:09,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:43:09,582 INFO L470 AbstractCegarLoop]: Abstraction has 239 states and 309 transitions. [2021-12-06 17:43:09,583 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 58 states, 52 states have (on average 3.4423076923076925) internal successors, (179), 55 states have internal predecessors, (179), 21 states have call successors, (57), 7 states have call predecessors, (57), 14 states have return successors, (56), 16 states have call predecessors, (56), 21 states have call successors, (56) [2021-12-06 17:43:09,583 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 309 transitions. [2021-12-06 17:43:09,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2021-12-06 17:43:09,584 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:43:09,584 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:43:09,620 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f8a8157-6fc9-4558-bdc7-a83757261cb7/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-12-06 17:43:09,785 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f8a8157-6fc9-4558-bdc7-a83757261cb7/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 17:43:09,786 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 17:43:09,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:43:09,788 INFO L85 PathProgramCache]: Analyzing trace with hash -1596672477, now seen corresponding path program 1 times [2021-12-06 17:43:09,788 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:43:09,788 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1398192489] [2021-12-06 17:43:09,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:43:09,789 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:43:09,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:43:10,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 17:43:10,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:43:10,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-12-06 17:43:10,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:43:10,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-06 17:43:10,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:43:10,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 17:43:10,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:43:10,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-06 17:43:10,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:43:10,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-12-06 17:43:10,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:43:10,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-06 17:43:10,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:43:10,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-06 17:43:10,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:43:10,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-06 17:43:10,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:43:10,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-06 17:43:10,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:43:10,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-06 17:43:10,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:43:10,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-12-06 17:43:10,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:43:10,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-06 17:43:10,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:43:10,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-12-06 17:43:10,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:43:10,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-06 17:43:10,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:43:10,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 17:43:10,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:43:10,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 17:43:10,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:43:10,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-12-06 17:43:10,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:43:10,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-12-06 17:43:10,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:43:10,523 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 5 proven. 12 refuted. 0 times theorem prover too weak. 154 trivial. 0 not checked. [2021-12-06 17:43:10,523 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 17:43:10,523 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1398192489] [2021-12-06 17:43:10,523 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1398192489] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 17:43:10,523 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1260533471] [2021-12-06 17:43:10,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:43:10,523 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 17:43:10,524 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f8a8157-6fc9-4558-bdc7-a83757261cb7/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 17:43:10,524 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f8a8157-6fc9-4558-bdc7-a83757261cb7/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 17:43:10,525 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f8a8157-6fc9-4558-bdc7-a83757261cb7/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-12-06 17:43:10,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:43:10,779 INFO L263 TraceCheckSpWp]: Trace formula consists of 2681 conjuncts, 69 conjunts are in the unsatisfiable core [2021-12-06 17:43:10,782 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 17:43:12,527 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2021-12-06 17:43:12,607 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 16 proven. 100 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2021-12-06 17:43:12,607 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 17:43:14,102 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 27 [2021-12-06 17:43:14,149 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 14 proven. 16 refuted. 0 times theorem prover too weak. 141 trivial. 0 not checked. [2021-12-06 17:43:14,149 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1260533471] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-06 17:43:14,149 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-06 17:43:14,149 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 29, 15] total 62 [2021-12-06 17:43:14,149 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [653697615] [2021-12-06 17:43:14,149 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-06 17:43:14,150 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 62 states [2021-12-06 17:43:14,150 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 17:43:14,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 62 interpolants. [2021-12-06 17:43:14,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=253, Invalid=3529, Unknown=0, NotChecked=0, Total=3782 [2021-12-06 17:43:14,152 INFO L87 Difference]: Start difference. First operand 239 states and 309 transitions. Second operand has 62 states, 53 states have (on average 3.0754716981132075) internal successors, (163), 51 states have internal predecessors, (163), 23 states have call successors, (57), 12 states have call predecessors, (57), 15 states have return successors, (54), 19 states have call predecessors, (54), 21 states have call successors, (54) [2021-12-06 17:43:14,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:43:14,154 INFO L93 Difference]: Finished difference Result 239 states and 309 transitions. [2021-12-06 17:43:14,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-06 17:43:14,155 INFO L78 Accepts]: Start accepts. Automaton has has 62 states, 53 states have (on average 3.0754716981132075) internal successors, (163), 51 states have internal predecessors, (163), 23 states have call successors, (57), 12 states have call predecessors, (57), 15 states have return successors, (54), 19 states have call predecessors, (54), 21 states have call successors, (54) Word has length 130 [2021-12-06 17:43:14,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:43:14,155 INFO L225 Difference]: With dead ends: 239 [2021-12-06 17:43:14,155 INFO L226 Difference]: Without dead ends: 0 [2021-12-06 17:43:14,156 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 315 GetRequests, 241 SyntacticMatches, 14 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1483 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=253, Invalid=3529, Unknown=0, NotChecked=0, Total=3782 [2021-12-06 17:43:14,157 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 17:43:14,157 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 17:43:14,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-12-06 17:43:14,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-12-06 17:43:14,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 17:43:14,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-12-06 17:43:14,158 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 130 [2021-12-06 17:43:14,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:43:14,158 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-06 17:43:14,158 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 62 states, 53 states have (on average 3.0754716981132075) internal successors, (163), 51 states have internal predecessors, (163), 23 states have call successors, (57), 12 states have call predecessors, (57), 15 states have return successors, (54), 19 states have call predecessors, (54), 21 states have call successors, (54) [2021-12-06 17:43:14,158 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-12-06 17:43:14,158 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-12-06 17:43:14,160 INFO L764 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-12-06 17:43:14,183 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f8a8157-6fc9-4558-bdc7-a83757261cb7/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2021-12-06 17:43:14,361 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f8a8157-6fc9-4558-bdc7-a83757261cb7/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-12-06 17:43:14,363 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-12-06 17:43:14,465 INFO L861 garLoopResultBuilder]: At program point bounded_mallocENTRY(lines 6882 6887) the Hoare annotation is: true [2021-12-06 17:43:14,465 INFO L858 garLoopResultBuilder]: For program point bounded_mallocFINAL(lines 6882 6887) no Hoare annotation was computed. [2021-12-06 17:43:14,465 INFO L858 garLoopResultBuilder]: For program point bounded_mallocEXIT(lines 6882 6887) no Hoare annotation was computed. [2021-12-06 17:43:14,465 INFO L858 garLoopResultBuilder]: For program point L6883-1(lines 6883 6885) no Hoare annotation was computed. [2021-12-06 17:43:14,465 INFO L861 garLoopResultBuilder]: At program point L6883(lines 6883 6885) the Hoare annotation is: true [2021-12-06 17:43:14,466 INFO L858 garLoopResultBuilder]: For program point L7135(lines 7135 7139) no Hoare annotation was computed. [2021-12-06 17:43:14,466 INFO L858 garLoopResultBuilder]: For program point L7137-1(line 7137) no Hoare annotation was computed. [2021-12-06 17:43:14,466 INFO L858 garLoopResultBuilder]: For program point save_byte_from_arrayEXIT(lines 7134 7140) no Hoare annotation was computed. [2021-12-06 17:43:14,466 INFO L861 garLoopResultBuilder]: At program point L7137(line 7137) the Hoare annotation is: true [2021-12-06 17:43:14,466 INFO L858 garLoopResultBuilder]: For program point L7135-2(lines 7134 7140) no Hoare annotation was computed. [2021-12-06 17:43:14,466 INFO L861 garLoopResultBuilder]: At program point L263(line 263) the Hoare annotation is: true [2021-12-06 17:43:14,466 INFO L861 garLoopResultBuilder]: At program point save_byte_from_arrayENTRY(lines 7134 7140) the Hoare annotation is: true [2021-12-06 17:43:14,466 INFO L858 garLoopResultBuilder]: For program point nondet_boolFINAL(line 261) no Hoare annotation was computed. [2021-12-06 17:43:14,466 INFO L858 garLoopResultBuilder]: For program point nondet_boolEXIT(line 261) no Hoare annotation was computed. [2021-12-06 17:43:14,466 INFO L861 garLoopResultBuilder]: At program point nondet_boolENTRY(line 261) the Hoare annotation is: true [2021-12-06 17:43:14,466 INFO L858 garLoopResultBuilder]: For program point L211-2(lines 210 212) no Hoare annotation was computed. [2021-12-06 17:43:14,466 INFO L861 garLoopResultBuilder]: At program point assume_abort_if_notENTRY(lines 210 212) the Hoare annotation is: true [2021-12-06 17:43:14,466 INFO L858 garLoopResultBuilder]: For program point L211(line 211) no Hoare annotation was computed. [2021-12-06 17:43:14,466 INFO L858 garLoopResultBuilder]: For program point assume_abort_if_notEXIT(lines 210 212) no Hoare annotation was computed. [2021-12-06 17:43:14,466 INFO L858 garLoopResultBuilder]: For program point L7772(lines 7772 7774) no Hoare annotation was computed. [2021-12-06 17:43:14,466 INFO L858 garLoopResultBuilder]: For program point aws_array_eq_c_strFINAL(lines 7767 7800) no Hoare annotation was computed. [2021-12-06 17:43:14,467 INFO L861 garLoopResultBuilder]: At program point L7769-1(line 7769) the Hoare annotation is: true [2021-12-06 17:43:14,467 INFO L861 garLoopResultBuilder]: At program point L7769(line 7769) the Hoare annotation is: true [2021-12-06 17:43:14,467 INFO L858 garLoopResultBuilder]: For program point L7792(lines 7792 7796) no Hoare annotation was computed. [2021-12-06 17:43:14,467 INFO L858 garLoopResultBuilder]: For program point L7786(lines 7786 7790) no Hoare annotation was computed. [2021-12-06 17:43:14,467 INFO L861 garLoopResultBuilder]: At program point aws_array_eq_c_strENTRY(lines 7767 7800) the Hoare annotation is: true [2021-12-06 17:43:14,467 INFO L858 garLoopResultBuilder]: For program point L7784-2(lines 7784 7797) no Hoare annotation was computed. [2021-12-06 17:43:14,467 INFO L858 garLoopResultBuilder]: For program point aws_array_eq_c_strEXIT(lines 7767 7800) no Hoare annotation was computed. [2021-12-06 17:43:14,467 INFO L858 garLoopResultBuilder]: For program point L7784-4(lines 7784 7797) no Hoare annotation was computed. [2021-12-06 17:43:14,467 INFO L861 garLoopResultBuilder]: At program point L7784-3(lines 7784 7797) the Hoare annotation is: true [2021-12-06 17:43:14,467 INFO L861 garLoopResultBuilder]: At program point L7130(line 7130) the Hoare annotation is: true [2021-12-06 17:43:14,467 INFO L858 garLoopResultBuilder]: For program point assert_byte_from_buffer_matchesEXIT(lines 7128 7132) no Hoare annotation was computed. [2021-12-06 17:43:14,467 INFO L861 garLoopResultBuilder]: At program point assert_byte_from_buffer_matchesENTRY(lines 7128 7132) the Hoare annotation is: true [2021-12-06 17:43:14,467 INFO L858 garLoopResultBuilder]: For program point L7129-2(lines 7128 7132) no Hoare annotation was computed. [2021-12-06 17:43:14,467 INFO L858 garLoopResultBuilder]: For program point L7129(lines 7129 7131) no Hoare annotation was computed. [2021-12-06 17:43:14,467 INFO L858 garLoopResultBuilder]: For program point L7130-1(line 7130) no Hoare annotation was computed. [2021-12-06 17:43:14,467 INFO L858 garLoopResultBuilder]: For program point L7395-5(line 7395) no Hoare annotation was computed. [2021-12-06 17:43:14,468 INFO L858 garLoopResultBuilder]: For program point L7395-4(line 7395) no Hoare annotation was computed. [2021-12-06 17:43:14,468 INFO L858 garLoopResultBuilder]: For program point L7395-2(line 7395) no Hoare annotation was computed. [2021-12-06 17:43:14,468 INFO L858 garLoopResultBuilder]: For program point L7395-8(line 7395) no Hoare annotation was computed. [2021-12-06 17:43:14,468 INFO L858 garLoopResultBuilder]: For program point L7395-6(line 7395) no Hoare annotation was computed. [2021-12-06 17:43:14,468 INFO L858 garLoopResultBuilder]: For program point L7395-11(line 7395) no Hoare annotation was computed. [2021-12-06 17:43:14,468 INFO L858 garLoopResultBuilder]: For program point L7395-10(line 7395) no Hoare annotation was computed. [2021-12-06 17:43:14,468 INFO L861 garLoopResultBuilder]: At program point aws_byte_cursor_is_validENTRY(lines 7392 7396) the Hoare annotation is: true [2021-12-06 17:43:14,468 INFO L858 garLoopResultBuilder]: For program point L7394(lines 7394 7395) no Hoare annotation was computed. [2021-12-06 17:43:14,468 INFO L858 garLoopResultBuilder]: For program point aws_byte_cursor_is_validEXIT(lines 7392 7396) no Hoare annotation was computed. [2021-12-06 17:43:14,468 INFO L858 garLoopResultBuilder]: For program point L7394-2(lines 7394 7395) no Hoare annotation was computed. [2021-12-06 17:43:14,468 INFO L858 garLoopResultBuilder]: For program point L7395(line 7395) no Hoare annotation was computed. [2021-12-06 17:43:14,468 INFO L858 garLoopResultBuilder]: For program point aws_byte_cursor_is_validFINAL(lines 7392 7396) no Hoare annotation was computed. [2021-12-06 17:43:14,468 INFO L858 garLoopResultBuilder]: For program point nondet_uint64_tEXIT(line 266) no Hoare annotation was computed. [2021-12-06 17:43:14,468 INFO L861 garLoopResultBuilder]: At program point nondet_uint64_tENTRY(line 266) the Hoare annotation is: true [2021-12-06 17:43:14,468 INFO L858 garLoopResultBuilder]: For program point nondet_uint64_tFINAL(line 266) no Hoare annotation was computed. [2021-12-06 17:43:14,468 INFO L854 garLoopResultBuilder]: At program point L8987(line 8987) the Hoare annotation is: false [2021-12-06 17:43:14,468 INFO L858 garLoopResultBuilder]: For program point L8987-1(line 8987) no Hoare annotation was computed. [2021-12-06 17:43:14,469 INFO L858 garLoopResultBuilder]: For program point L8995-2(lines 8967 9001) no Hoare annotation was computed. [2021-12-06 17:43:14,469 INFO L858 garLoopResultBuilder]: For program point L7864-1(lines 7864 7866) no Hoare annotation was computed. [2021-12-06 17:43:14,469 INFO L854 garLoopResultBuilder]: At program point L7864(lines 7864 7866) the Hoare annotation is: false [2021-12-06 17:43:14,469 INFO L858 garLoopResultBuilder]: For program point L6675-1(line 6675) no Hoare annotation was computed. [2021-12-06 17:43:14,469 INFO L854 garLoopResultBuilder]: At program point L6675(line 6675) the Hoare annotation is: false [2021-12-06 17:43:14,469 INFO L854 garLoopResultBuilder]: At program point L8996(line 8996) the Hoare annotation is: false [2021-12-06 17:43:14,469 INFO L858 garLoopResultBuilder]: For program point L8996-1(line 8996) no Hoare annotation was computed. [2021-12-06 17:43:14,469 INFO L858 garLoopResultBuilder]: For program point L8988(lines 8988 8990) no Hoare annotation was computed. [2021-12-06 17:43:14,469 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-12-06 17:43:14,469 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-12-06 17:43:14,469 INFO L854 garLoopResultBuilder]: At program point L8980(line 8980) the Hoare annotation is: false [2021-12-06 17:43:14,469 INFO L858 garLoopResultBuilder]: For program point L8980-1(line 8980) no Hoare annotation was computed. [2021-12-06 17:43:14,469 INFO L858 garLoopResultBuilder]: For program point L6825-1(line 6825) no Hoare annotation was computed. [2021-12-06 17:43:14,469 INFO L854 garLoopResultBuilder]: At program point L6825(line 6825) the Hoare annotation is: false [2021-12-06 17:43:14,469 INFO L854 garLoopResultBuilder]: At program point L7106(line 7106) the Hoare annotation is: false [2021-12-06 17:43:14,469 INFO L858 garLoopResultBuilder]: For program point L7106-1(line 7106) no Hoare annotation was computed. [2021-12-06 17:43:14,469 INFO L858 garLoopResultBuilder]: For program point L8981(line 8981) no Hoare annotation was computed. [2021-12-06 17:43:14,469 INFO L858 garLoopResultBuilder]: For program point L8981-2(line 8981) no Hoare annotation was computed. [2021-12-06 17:43:14,470 INFO L854 garLoopResultBuilder]: At program point L8973(line 8973) the Hoare annotation is: false [2021-12-06 17:43:14,470 INFO L858 garLoopResultBuilder]: For program point L8973-1(line 8973) no Hoare annotation was computed. [2021-12-06 17:43:14,470 INFO L854 garLoopResultBuilder]: At program point L6826(lines 6818 6827) the Hoare annotation is: false [2021-12-06 17:43:14,470 INFO L854 garLoopResultBuilder]: At program point L6669(lines 6667 6670) the Hoare annotation is: false [2021-12-06 17:43:14,470 INFO L858 garLoopResultBuilder]: For program point L7107-1(lines 7107 7109) no Hoare annotation was computed. [2021-12-06 17:43:14,470 INFO L854 garLoopResultBuilder]: At program point L7107(lines 7107 7109) the Hoare annotation is: false [2021-12-06 17:43:14,470 INFO L858 garLoopResultBuilder]: For program point L8998(lines 8998 9000) no Hoare annotation was computed. [2021-12-06 17:43:14,470 INFO L858 garLoopResultBuilder]: For program point L7099(lines 7099 7112) no Hoare annotation was computed. [2021-12-06 17:43:14,470 INFO L858 garLoopResultBuilder]: For program point L6819-1(line 6819) no Hoare annotation was computed. [2021-12-06 17:43:14,470 INFO L854 garLoopResultBuilder]: At program point L6819(line 6819) the Hoare annotation is: false [2021-12-06 17:43:14,470 INFO L854 garLoopResultBuilder]: At program point L8999(line 8999) the Hoare annotation is: false [2021-12-06 17:43:14,470 INFO L858 garLoopResultBuilder]: For program point L7100-1(lines 7099 7112) no Hoare annotation was computed. [2021-12-06 17:43:14,470 INFO L854 garLoopResultBuilder]: At program point L7100(line 7100) the Hoare annotation is: false [2021-12-06 17:43:14,470 INFO L854 garLoopResultBuilder]: At program point L8983(line 8983) the Hoare annotation is: false [2021-12-06 17:43:14,470 INFO L858 garLoopResultBuilder]: For program point L8983-1(line 8983) no Hoare annotation was computed. [2021-12-06 17:43:14,470 INFO L858 garLoopResultBuilder]: For program point L8975-2(line 8975) no Hoare annotation was computed. [2021-12-06 17:43:14,471 INFO L854 garLoopResultBuilder]: At program point L8975(line 8975) the Hoare annotation is: false [2021-12-06 17:43:14,471 INFO L854 garLoopResultBuilder]: At program point L8975-1(line 8975) the Hoare annotation is: false [2021-12-06 17:43:14,471 INFO L854 garLoopResultBuilder]: At program point L6820-1(line 6820) the Hoare annotation is: false [2021-12-06 17:43:14,471 INFO L854 garLoopResultBuilder]: At program point L6820(line 6820) the Hoare annotation is: false [2021-12-06 17:43:14,471 INFO L858 garLoopResultBuilder]: For program point L8967(lines 8967 9001) no Hoare annotation was computed. [2021-12-06 17:43:14,471 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-12-06 17:43:14,471 INFO L858 garLoopResultBuilder]: For program point L7869-1(line 7869) no Hoare annotation was computed. [2021-12-06 17:43:14,471 INFO L854 garLoopResultBuilder]: At program point L7869(line 7869) the Hoare annotation is: false [2021-12-06 17:43:14,471 INFO L858 garLoopResultBuilder]: For program point L6672(lines 6672 6676) no Hoare annotation was computed. [2021-12-06 17:43:14,471 INFO L854 garLoopResultBuilder]: At program point L7110(line 7110) the Hoare annotation is: false [2021-12-06 17:43:14,471 INFO L858 garLoopResultBuilder]: For program point L6821(line 6821) no Hoare annotation was computed. [2021-12-06 17:43:14,471 INFO L858 garLoopResultBuilder]: For program point L7110-1(line 7110) no Hoare annotation was computed. [2021-12-06 17:43:14,471 INFO L854 garLoopResultBuilder]: At program point L7870(line 7870) the Hoare annotation is: false [2021-12-06 17:43:14,471 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-12-06 17:43:14,471 INFO L858 garLoopResultBuilder]: For program point L7870-2(line 7870) no Hoare annotation was computed. [2021-12-06 17:43:14,471 INFO L854 garLoopResultBuilder]: At program point L7870-1(line 7870) the Hoare annotation is: false [2021-12-06 17:43:14,471 INFO L858 garLoopResultBuilder]: For program point L6673-3(lines 6673 6675) no Hoare annotation was computed. [2021-12-06 17:43:14,471 INFO L858 garLoopResultBuilder]: For program point L6673-1(lines 6673 6675) no Hoare annotation was computed. [2021-12-06 17:43:14,472 INFO L854 garLoopResultBuilder]: At program point L6673(line 6673) the Hoare annotation is: false [2021-12-06 17:43:14,472 INFO L861 garLoopResultBuilder]: At program point L9002(line 9002) the Hoare annotation is: true [2021-12-06 17:43:14,472 INFO L854 garLoopResultBuilder]: At program point L8994(line 8994) the Hoare annotation is: false [2021-12-06 17:43:14,472 INFO L854 garLoopResultBuilder]: At program point L7871(lines 7861 7872) the Hoare annotation is: false [2021-12-06 17:43:14,472 INFO L858 garLoopResultBuilder]: For program point L8986(lines 8986 8991) no Hoare annotation was computed. [2021-12-06 17:43:14,472 INFO L858 garLoopResultBuilder]: For program point L8994-1(line 8994) no Hoare annotation was computed. [2021-12-06 17:43:14,472 INFO L854 garLoopResultBuilder]: At program point L7863-1(line 7863) the Hoare annotation is: (let ((.cse0 (< 1 |ULTIMATE.start_aws_byte_cursor_eq_c_str_harness_~#cur~3#1.base|)) (.cse1 (< 1 |ULTIMATE.start_aws_byte_cursor_eq_c_str_~cursor#1.base|)) (.cse2 (= |ULTIMATE.start_aws_byte_cursor_eq_c_str_#t~ret849#1| 0)) (.cse3 (< 0 |#StackHeapBarrier|))) (or (and .cse0 .cse1 (= |ULTIMATE.start_aws_byte_cursor_eq_c_str_harness_~#cur~3#1.offset| 0) .cse2 .cse3) (and .cse0 (= |ULTIMATE.start_aws_byte_cursor_eq_c_str_~cursor#1.offset| 0) (<= 0 (let ((.cse4 (select (select |#memory_int| |ULTIMATE.start_aws_byte_cursor_eq_c_str_~cursor#1.base|) |ULTIMATE.start_aws_byte_cursor_eq_c_str_~cursor#1.offset|))) (+ (* 18446744073709551616 (div (* .cse4 (- 1)) 18446744073709551616)) .cse4))) .cse1 .cse2 .cse3))) [2021-12-06 17:43:14,472 INFO L854 garLoopResultBuilder]: At program point L7863(line 7863) the Hoare annotation is: false [2021-12-06 17:43:14,472 INFO L854 garLoopResultBuilder]: At program point L8986-1(lines 8986 8991) the Hoare annotation is: false [2021-12-06 17:43:14,472 INFO L858 garLoopResultBuilder]: For program point L7863-2(line 7863) no Hoare annotation was computed. [2021-12-06 17:43:14,472 INFO L858 garLoopResultBuilder]: For program point L8995(lines 8995 8997) no Hoare annotation was computed. [2021-12-06 17:43:14,472 INFO L858 garLoopResultBuilder]: For program point L223(line 223) no Hoare annotation was computed. [2021-12-06 17:43:14,472 INFO L861 garLoopResultBuilder]: At program point __VERIFIER_assertENTRY(lines 222 224) the Hoare annotation is: true [2021-12-06 17:43:14,472 INFO L858 garLoopResultBuilder]: For program point L223-1(line 223) no Hoare annotation was computed. [2021-12-06 17:43:14,472 INFO L858 garLoopResultBuilder]: For program point L223-3(lines 222 224) no Hoare annotation was computed. [2021-12-06 17:43:14,472 INFO L858 garLoopResultBuilder]: For program point __VERIFIER_assertEXIT(lines 222 224) no Hoare annotation was computed. [2021-12-06 17:43:14,473 INFO L858 garLoopResultBuilder]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 223) no Hoare annotation was computed. [2021-12-06 17:43:14,475 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:43:14,476 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-06 17:43:14,482 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.12 05:43:14 BoogieIcfgContainer [2021-12-06 17:43:14,482 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-06 17:43:14,482 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-06 17:43:14,482 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-06 17:43:14,482 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-06 17:43:14,483 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 05:42:19" (3/4) ... [2021-12-06 17:43:14,484 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-12-06 17:43:14,488 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure bounded_malloc [2021-12-06 17:43:14,489 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure aws_byte_cursor_is_valid [2021-12-06 17:43:14,489 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure save_byte_from_array [2021-12-06 17:43:14,489 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure nondet_uint64_t [2021-12-06 17:43:14,489 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure nondet_bool [2021-12-06 17:43:14,489 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2021-12-06 17:43:14,489 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2021-12-06 17:43:14,489 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure aws_array_eq_c_str [2021-12-06 17:43:14,489 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure assert_byte_from_buffer_matches [2021-12-06 17:43:14,501 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 131 nodes and edges [2021-12-06 17:43:14,502 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 62 nodes and edges [2021-12-06 17:43:14,503 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 27 nodes and edges [2021-12-06 17:43:14,505 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2021-12-06 17:43:14,506 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2021-12-06 17:43:14,507 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2021-12-06 17:43:14,508 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-12-06 17:43:14,509 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-12-06 17:43:15,235 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f8a8157-6fc9-4558-bdc7-a83757261cb7/bin/uautomizer-DrprNOufMa/witness.graphml [2021-12-06 17:43:15,236 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-06 17:43:15,236 INFO L158 Benchmark]: Toolchain (without parser) took 58532.31ms. Allocated memory was 83.9MB in the beginning and 299.9MB in the end (delta: 216.0MB). Free memory was 38.9MB in the beginning and 69.8MB in the end (delta: -30.8MB). Peak memory consumption was 194.7MB. Max. memory is 16.1GB. [2021-12-06 17:43:15,236 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 83.9MB. Free memory is still 64.6MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-06 17:43:15,237 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1873.56ms. Allocated memory was 83.9MB in the beginning and 121.6MB in the end (delta: 37.7MB). Free memory was 38.7MB in the beginning and 58.7MB in the end (delta: -19.9MB). Peak memory consumption was 40.4MB. Max. memory is 16.1GB. [2021-12-06 17:43:15,237 INFO L158 Benchmark]: Boogie Procedure Inliner took 124.31ms. Allocated memory is still 121.6MB. Free memory was 58.7MB in the beginning and 47.2MB in the end (delta: 11.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-12-06 17:43:15,237 INFO L158 Benchmark]: Boogie Preprocessor took 60.11ms. Allocated memory is still 121.6MB. Free memory was 47.2MB in the beginning and 65.7MB in the end (delta: -18.6MB). Peak memory consumption was 4.4MB. Max. memory is 16.1GB. [2021-12-06 17:43:15,238 INFO L158 Benchmark]: RCFGBuilder took 1074.29ms. Allocated memory was 121.6MB in the beginning and 146.8MB in the end (delta: 25.2MB). Free memory was 65.3MB in the beginning and 104.2MB in the end (delta: -38.8MB). Peak memory consumption was 44.1MB. Max. memory is 16.1GB. [2021-12-06 17:43:15,238 INFO L158 Benchmark]: TraceAbstraction took 54640.47ms. Allocated memory was 146.8MB in the beginning and 299.9MB in the end (delta: 153.1MB). Free memory was 103.7MB in the beginning and 197.9MB in the end (delta: -94.3MB). Peak memory consumption was 58.3MB. Max. memory is 16.1GB. [2021-12-06 17:43:15,238 INFO L158 Benchmark]: Witness Printer took 753.61ms. Allocated memory is still 299.9MB. Free memory was 197.9MB in the beginning and 69.8MB in the end (delta: 128.2MB). Peak memory consumption was 137.8MB. Max. memory is 16.1GB. [2021-12-06 17:43:15,240 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 83.9MB. Free memory is still 64.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1873.56ms. Allocated memory was 83.9MB in the beginning and 121.6MB in the end (delta: 37.7MB). Free memory was 38.7MB in the beginning and 58.7MB in the end (delta: -19.9MB). Peak memory consumption was 40.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 124.31ms. Allocated memory is still 121.6MB. Free memory was 58.7MB in the beginning and 47.2MB in the end (delta: 11.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Preprocessor took 60.11ms. Allocated memory is still 121.6MB. Free memory was 47.2MB in the beginning and 65.7MB in the end (delta: -18.6MB). Peak memory consumption was 4.4MB. Max. memory is 16.1GB. * RCFGBuilder took 1074.29ms. Allocated memory was 121.6MB in the beginning and 146.8MB in the end (delta: 25.2MB). Free memory was 65.3MB in the beginning and 104.2MB in the end (delta: -38.8MB). Peak memory consumption was 44.1MB. Max. memory is 16.1GB. * TraceAbstraction took 54640.47ms. Allocated memory was 146.8MB in the beginning and 299.9MB in the end (delta: 153.1MB). Free memory was 103.7MB in the beginning and 197.9MB in the end (delta: -94.3MB). Peak memory consumption was 58.3MB. Max. memory is 16.1GB. * Witness Printer took 753.61ms. Allocated memory is still 299.9MB. Free memory was 197.9MB in the beginning and 69.8MB in the end (delta: 128.2MB). Peak memory consumption was 137.8MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 223]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 10 procedures, 123 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 54.6s, OverallIterations: 10, TraceHistogramMax: 10, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 19.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2152 SdHoareTripleChecker+Valid, 7.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2079 mSDsluCounter, 8362 SdHoareTripleChecker+Invalid, 6.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 2693 IncrementalHoareTripleChecker+Unchecked, 7036 mSDsCounter, 1491 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 11431 IncrementalHoareTripleChecker+Invalid, 15615 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1491 mSolverCounterUnsat, 1326 mSDtfsCounter, 11431 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1936 GetRequests, 1544 SyntacticMatches, 45 SemanticMatches, 347 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 6485 ImplicationChecksByTransitivity, 34.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=239occurred in iteration=9, InterpolantAutomatonStates: 156, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 10 MinimizatonAttempts, 273 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 46 LocationsWithAnnotation, 346 PreInvPairs, 352 NumberOfFragments, 97 HoareAnnotationTreeSize, 346 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 46 FomulaSimplificationsInter, 95 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 2.8s SatisfiabilityAnalysisTime, 29.2s InterpolantComputationTime, 2185 NumberOfCodeBlocks, 2185 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 2560 ConstructedInterpolants, 152 QuantifiedInterpolants, 14531 SizeOfPredicates, 101 NumberOfNonLiveVariables, 18892 ConjunctsInSsa, 247 ConjunctsInUnsatCore, 20 InterpolantComputations, 7 PerfectInterpolantSequences, 3409/3676 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: 9002]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 6667]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 263]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 7784]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 7861]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 6818]: Loop Invariant Derived loop invariant: 0 RESULT: Ultimate proved your program to be correct! [2021-12-06 17:43:15,256 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f8a8157-6fc9-4558-bdc7-a83757261cb7/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE