./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_string_bytes_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b5237d83 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d0c5dd0-da42-4797-9672-a20a966661d6/bin/uautomizer-vX5HgA9Q3a/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d0c5dd0-da42-4797-9672-a20a966661d6/bin/uautomizer-vX5HgA9Q3a/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d0c5dd0-da42-4797-9672-a20a966661d6/bin/uautomizer-vX5HgA9Q3a/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d0c5dd0-da42-4797-9672-a20a966661d6/bin/uautomizer-vX5HgA9Q3a/config/AutomizerReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_string_bytes_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d0c5dd0-da42-4797-9672-a20a966661d6/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d0c5dd0-da42-4797-9672-a20a966661d6/bin/uautomizer-vX5HgA9Q3a --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 be41ee8ace02416f2e9952c11df8cb43e10a04c126211792ad12271f5624b8e0 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-b5237d8 [2022-11-21 16:27:59,431 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-21 16:27:59,434 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-21 16:27:59,480 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-21 16:27:59,480 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-21 16:27:59,484 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-21 16:27:59,487 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-21 16:27:59,490 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-21 16:27:59,492 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-21 16:27:59,498 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-21 16:27:59,499 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-21 16:27:59,502 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-21 16:27:59,503 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-21 16:27:59,506 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-21 16:27:59,508 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-21 16:27:59,510 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-21 16:27:59,512 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-21 16:27:59,513 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-21 16:27:59,515 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-21 16:27:59,521 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-21 16:27:59,523 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-21 16:27:59,524 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-21 16:27:59,526 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-21 16:27:59,528 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-21 16:27:59,534 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-21 16:27:59,537 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-21 16:27:59,538 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-21 16:27:59,539 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-21 16:27:59,541 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-21 16:27:59,542 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-21 16:27:59,543 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-21 16:27:59,544 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-21 16:27:59,546 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-21 16:27:59,547 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-21 16:27:59,548 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-21 16:27:59,549 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-21 16:27:59,549 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-21 16:27:59,550 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-21 16:27:59,550 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-21 16:27:59,553 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-21 16:27:59,554 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-21 16:27:59,554 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d0c5dd0-da42-4797-9672-a20a966661d6/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-21 16:27:59,595 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-21 16:27:59,595 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-21 16:27:59,596 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-21 16:27:59,596 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-21 16:27:59,597 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-21 16:27:59,597 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-21 16:27:59,598 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-21 16:27:59,598 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-21 16:27:59,599 INFO L138 SettingsManager]: * Use SBE=true [2022-11-21 16:27:59,599 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-21 16:27:59,600 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-21 16:27:59,600 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-21 16:27:59,600 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-21 16:27:59,601 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-21 16:27:59,601 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-21 16:27:59,601 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-21 16:27:59,601 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-21 16:27:59,601 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-21 16:27:59,602 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-21 16:27:59,602 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-21 16:27:59,602 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-21 16:27:59,602 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 16:27:59,603 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-21 16:27:59,603 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-21 16:27:59,603 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-21 16:27:59,603 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-21 16:27:59,604 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-21 16:27:59,604 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-21 16:27:59,605 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-21 16:27:59,605 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-21 16:27:59,605 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_7d0c5dd0-da42-4797-9672-a20a966661d6/bin/uautomizer-vX5HgA9Q3a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d0c5dd0-da42-4797-9672-a20a966661d6/bin/uautomizer-vX5HgA9Q3a Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> be41ee8ace02416f2e9952c11df8cb43e10a04c126211792ad12271f5624b8e0 [2022-11-21 16:27:59,920 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-21 16:27:59,943 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-21 16:27:59,946 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-21 16:27:59,947 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-21 16:27:59,948 INFO L275 PluginConnector]: CDTParser initialized [2022-11-21 16:27:59,949 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d0c5dd0-da42-4797-9672-a20a966661d6/bin/uautomizer-vX5HgA9Q3a/../../sv-benchmarks/c/aws-c-common/aws_string_bytes_harness.i [2022-11-21 16:28:02,980 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-21 16:28:03,514 INFO L351 CDTParser]: Found 1 translation units. [2022-11-21 16:28:03,515 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d0c5dd0-da42-4797-9672-a20a966661d6/sv-benchmarks/c/aws-c-common/aws_string_bytes_harness.i [2022-11-21 16:28:03,563 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d0c5dd0-da42-4797-9672-a20a966661d6/bin/uautomizer-vX5HgA9Q3a/data/b6666eaaf/f533b503c2e14a0a97e50b31eda52c21/FLAGbc20449b3 [2022-11-21 16:28:04,069 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d0c5dd0-da42-4797-9672-a20a966661d6/bin/uautomizer-vX5HgA9Q3a/data/b6666eaaf/f533b503c2e14a0a97e50b31eda52c21 [2022-11-21 16:28:04,073 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-21 16:28:04,077 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-21 16:28:04,080 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-21 16:28:04,080 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-21 16:28:04,084 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-21 16:28:04,085 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 04:28:04" (1/1) ... [2022-11-21 16:28:04,086 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2e6926d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:28:04, skipping insertion in model container [2022-11-21 16:28:04,086 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 04:28:04" (1/1) ... [2022-11-21 16:28:04,094 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-21 16:28:04,198 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-21 16:28:04,461 WARN L237 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_7d0c5dd0-da42-4797-9672-a20a966661d6/sv-benchmarks/c/aws-c-common/aws_string_bytes_harness.i[4490,4503] [2022-11-21 16:28:04,472 WARN L237 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_7d0c5dd0-da42-4797-9672-a20a966661d6/sv-benchmarks/c/aws-c-common/aws_string_bytes_harness.i[4550,4563] [2022-11-21 16:28:05,451 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-21 16:28:05,452 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-21 16:28:05,453 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-21 16:28:05,454 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-21 16:28:05,456 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-21 16:28:05,474 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-21 16:28:05,488 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-21 16:28:05,491 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-21 16:28:05,492 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-21 16:28:05,495 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-21 16:28:05,496 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-21 16:28:05,497 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-21 16:28:05,498 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-21 16:28:05,948 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-11-21 16:28:05,950 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-11-21 16:28:05,951 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-11-21 16:28:05,953 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-11-21 16:28:05,954 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-11-21 16:28:05,955 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-11-21 16:28:05,956 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-11-21 16:28:05,957 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-11-21 16:28:05,958 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-11-21 16:28:05,959 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-11-21 16:28:06,181 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-11-21 16:28:06,223 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 16:28:06,245 INFO L203 MainTranslator]: Completed pre-run [2022-11-21 16:28:06,274 WARN L237 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_7d0c5dd0-da42-4797-9672-a20a966661d6/sv-benchmarks/c/aws-c-common/aws_string_bytes_harness.i[4490,4503] [2022-11-21 16:28:06,275 WARN L237 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_7d0c5dd0-da42-4797-9672-a20a966661d6/sv-benchmarks/c/aws-c-common/aws_string_bytes_harness.i[4550,4563] [2022-11-21 16:28:06,355 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-21 16:28:06,360 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-21 16:28:06,360 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-21 16:28:06,361 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-21 16:28:06,362 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-21 16:28:06,372 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-21 16:28:06,378 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-21 16:28:06,380 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-21 16:28:06,381 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-21 16:28:06,382 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-21 16:28:06,383 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-21 16:28:06,384 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-21 16:28:06,384 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-21 16:28:06,480 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-11-21 16:28:06,483 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-11-21 16:28:06,486 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-11-21 16:28:06,487 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-11-21 16:28:06,488 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-11-21 16:28:06,489 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-11-21 16:28:06,531 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-11-21 16:28:06,532 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-11-21 16:28:06,532 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-11-21 16:28:06,533 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-11-21 16:28:06,569 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-11-21 16:28:06,581 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 16:28:06,756 INFO L208 MainTranslator]: Completed translation [2022-11-21 16:28:06,756 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:28:06 WrapperNode [2022-11-21 16:28:06,756 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-21 16:28:06,758 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-21 16:28:06,758 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-21 16:28:06,758 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-21 16:28:06,765 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:28:06" (1/1) ... [2022-11-21 16:28:06,842 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:28:06" (1/1) ... [2022-11-21 16:28:06,901 INFO L138 Inliner]: procedures = 679, calls = 972, calls flagged for inlining = 44, calls inlined = 6, statements flattened = 59 [2022-11-21 16:28:06,901 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-21 16:28:06,902 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-21 16:28:06,902 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-21 16:28:06,902 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-21 16:28:06,911 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:28:06" (1/1) ... [2022-11-21 16:28:06,912 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:28:06" (1/1) ... [2022-11-21 16:28:06,923 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:28:06" (1/1) ... [2022-11-21 16:28:06,924 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:28:06" (1/1) ... [2022-11-21 16:28:06,940 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:28:06" (1/1) ... [2022-11-21 16:28:06,956 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:28:06" (1/1) ... [2022-11-21 16:28:06,960 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:28:06" (1/1) ... [2022-11-21 16:28:06,961 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:28:06" (1/1) ... [2022-11-21 16:28:06,977 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-21 16:28:06,978 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-21 16:28:06,978 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-21 16:28:06,978 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-21 16:28:06,979 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:28:06" (1/1) ... [2022-11-21 16:28:06,999 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 16:28:07,011 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d0c5dd0-da42-4797-9672-a20a966661d6/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:28:07,029 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d0c5dd0-da42-4797-9672-a20a966661d6/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-21 16:28:07,053 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d0c5dd0-da42-4797-9672-a20a966661d6/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-21 16:28:07,075 INFO L130 BoogieDeclarations]: Found specification of procedure aws_string_is_valid [2022-11-21 16:28:07,075 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_string_is_valid [2022-11-21 16:28:07,076 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2022-11-21 16:28:07,076 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2022-11-21 16:28:07,076 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-21 16:28:07,076 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-21 16:28:07,077 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-21 16:28:07,077 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-21 16:28:07,077 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-21 16:28:07,078 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-21 16:28:07,078 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-21 16:28:07,079 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-21 16:28:07,079 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2022-11-21 16:28:07,079 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2022-11-21 16:28:07,079 INFO L130 BoogieDeclarations]: Found specification of procedure aws_string_bytes [2022-11-21 16:28:07,080 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_string_bytes [2022-11-21 16:28:07,080 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-21 16:28:07,080 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-21 16:28:07,080 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-21 16:28:07,080 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2022-11-21 16:28:07,080 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2022-11-21 16:28:07,081 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2022-11-21 16:28:07,081 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2022-11-21 16:28:07,083 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-21 16:28:07,083 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-21 16:28:07,368 INFO L235 CfgBuilder]: Building ICFG [2022-11-21 16:28:07,371 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-21 16:28:07,672 INFO L276 CfgBuilder]: Performing block encoding [2022-11-21 16:28:07,680 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-21 16:28:07,680 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-21 16:28:07,682 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:28:07 BoogieIcfgContainer [2022-11-21 16:28:07,682 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-21 16:28:07,693 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-21 16:28:07,693 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-21 16:28:07,697 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-21 16:28:07,697 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 04:28:04" (1/3) ... [2022-11-21 16:28:07,698 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ceb8bc7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 04:28:07, skipping insertion in model container [2022-11-21 16:28:07,698 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:28:06" (2/3) ... [2022-11-21 16:28:07,698 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ceb8bc7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 04:28:07, skipping insertion in model container [2022-11-21 16:28:07,699 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:28:07" (3/3) ... [2022-11-21 16:28:07,700 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_string_bytes_harness.i [2022-11-21 16:28:07,722 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-21 16:28:07,722 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-21 16:28:07,793 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-21 16:28:07,807 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@4c790f6c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-21 16:28:07,808 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-21 16:28:07,812 INFO L276 IsEmpty]: Start isEmpty. Operand has 63 states, 41 states have (on average 1.146341463414634) internal successors, (47), 42 states have internal predecessors, (47), 12 states have call successors, (12), 8 states have call predecessors, (12), 8 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2022-11-21 16:28:07,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2022-11-21 16:28:07,825 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:28:07,826 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:28:07,827 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:28:07,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:28:07,835 INFO L85 PathProgramCache]: Analyzing trace with hash 26650354, now seen corresponding path program 1 times [2022-11-21 16:28:07,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:28:07,869 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1133784190] [2022-11-21 16:28:07,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:28:07,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:28:08,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:28:08,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-21 16:28:08,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:28:08,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-21 16:28:08,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:28:08,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-11-21 16:28:08,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:28:09,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:28:09,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:28:09,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-11-21 16:28:09,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:28:09,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-11-21 16:28:09,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:28:09,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:28:09,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:28:09,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-21 16:28:09,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:28:09,393 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-21 16:28:09,393 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:28:09,394 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1133784190] [2022-11-21 16:28:09,394 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1133784190] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:28:09,395 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:28:09,395 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-11-21 16:28:09,397 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [155307066] [2022-11-21 16:28:09,397 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:28:09,402 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-21 16:28:09,402 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:28:09,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-21 16:28:09,431 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=209, Unknown=0, NotChecked=0, Total=240 [2022-11-21 16:28:09,433 INFO L87 Difference]: Start difference. First operand has 63 states, 41 states have (on average 1.146341463414634) internal successors, (47), 42 states have internal predecessors, (47), 12 states have call successors, (12), 8 states have call predecessors, (12), 8 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) Second operand has 16 states, 14 states have (on average 2.2857142857142856) internal successors, (32), 14 states have internal predecessors, (32), 6 states have call successors, (9), 3 states have call predecessors, (9), 4 states have return successors, (8), 5 states have call predecessors, (8), 5 states have call successors, (8) [2022-11-21 16:28:10,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:28:10,118 INFO L93 Difference]: Finished difference Result 127 states and 153 transitions. [2022-11-21 16:28:10,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-21 16:28:10,121 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 14 states have (on average 2.2857142857142856) internal successors, (32), 14 states have internal predecessors, (32), 6 states have call successors, (9), 3 states have call predecessors, (9), 4 states have return successors, (8), 5 states have call predecessors, (8), 5 states have call successors, (8) Word has length 55 [2022-11-21 16:28:10,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:28:10,129 INFO L225 Difference]: With dead ends: 127 [2022-11-21 16:28:10,129 INFO L226 Difference]: Without dead ends: 58 [2022-11-21 16:28:10,133 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=97, Invalid=553, Unknown=0, NotChecked=0, Total=650 [2022-11-21 16:28:10,136 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 91 mSDsluCounter, 240 mSDsCounter, 0 mSdLazyCounter, 609 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 271 SdHoareTripleChecker+Invalid, 652 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 609 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-21 16:28:10,137 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 271 Invalid, 652 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 609 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-21 16:28:10,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2022-11-21 16:28:10,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 58. [2022-11-21 16:28:10,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 37 states have (on average 1.054054054054054) internal successors, (39), 38 states have internal predecessors, (39), 12 states have call successors, (12), 8 states have call predecessors, (12), 8 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2022-11-21 16:28:10,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 62 transitions. [2022-11-21 16:28:10,178 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 62 transitions. Word has length 55 [2022-11-21 16:28:10,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:28:10,180 INFO L495 AbstractCegarLoop]: Abstraction has 58 states and 62 transitions. [2022-11-21 16:28:10,180 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 14 states have (on average 2.2857142857142856) internal successors, (32), 14 states have internal predecessors, (32), 6 states have call successors, (9), 3 states have call predecessors, (9), 4 states have return successors, (8), 5 states have call predecessors, (8), 5 states have call successors, (8) [2022-11-21 16:28:10,181 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 62 transitions. [2022-11-21 16:28:10,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2022-11-21 16:28:10,183 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:28:10,183 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:28:10,183 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-21 16:28:10,184 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:28:10,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:28:10,184 INFO L85 PathProgramCache]: Analyzing trace with hash 1047718708, now seen corresponding path program 1 times [2022-11-21 16:28:10,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:28:10,185 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1221467564] [2022-11-21 16:28:10,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:28:10,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:28:10,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:28:10,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-21 16:28:10,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:28:10,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-21 16:28:10,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:28:10,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-11-21 16:28:10,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:28:10,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:28:10,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:28:10,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-11-21 16:28:10,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:28:10,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-11-21 16:28:10,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:28:11,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:28:11,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:28:11,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-21 16:28:11,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:28:11,160 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-21 16:28:11,160 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:28:11,161 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1221467564] [2022-11-21 16:28:11,162 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1221467564] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:28:11,162 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:28:11,162 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-21 16:28:11,162 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1909366068] [2022-11-21 16:28:11,163 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:28:11,166 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-11-21 16:28:11,167 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:28:11,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-11-21 16:28:11,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=183, Unknown=0, NotChecked=0, Total=210 [2022-11-21 16:28:11,168 INFO L87 Difference]: Start difference. First operand 58 states and 62 transitions. Second operand has 15 states, 13 states have (on average 2.4615384615384617) internal successors, (32), 11 states have internal predecessors, (32), 5 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 5 states have call predecessors, (8), 4 states have call successors, (8) [2022-11-21 16:28:11,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:28:11,844 INFO L93 Difference]: Finished difference Result 64 states and 67 transitions. [2022-11-21 16:28:11,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-21 16:28:11,845 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 13 states have (on average 2.4615384615384617) internal successors, (32), 11 states have internal predecessors, (32), 5 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 5 states have call predecessors, (8), 4 states have call successors, (8) Word has length 55 [2022-11-21 16:28:11,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:28:11,846 INFO L225 Difference]: With dead ends: 64 [2022-11-21 16:28:11,846 INFO L226 Difference]: Without dead ends: 60 [2022-11-21 16:28:11,847 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=87, Invalid=465, Unknown=0, NotChecked=0, Total=552 [2022-11-21 16:28:11,848 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 51 mSDsluCounter, 205 mSDsCounter, 0 mSdLazyCounter, 545 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 231 SdHoareTripleChecker+Invalid, 574 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 545 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-21 16:28:11,848 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 231 Invalid, 574 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 545 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-21 16:28:11,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2022-11-21 16:28:11,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60. [2022-11-21 16:28:11,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 39 states have (on average 1.0256410256410255) internal successors, (40), 39 states have internal predecessors, (40), 12 states have call successors, (12), 9 states have call predecessors, (12), 8 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2022-11-21 16:28:11,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 63 transitions. [2022-11-21 16:28:11,862 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 63 transitions. Word has length 55 [2022-11-21 16:28:11,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:28:11,862 INFO L495 AbstractCegarLoop]: Abstraction has 60 states and 63 transitions. [2022-11-21 16:28:11,863 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 13 states have (on average 2.4615384615384617) internal successors, (32), 11 states have internal predecessors, (32), 5 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 5 states have call predecessors, (8), 4 states have call successors, (8) [2022-11-21 16:28:11,863 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 63 transitions. [2022-11-21 16:28:11,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-11-21 16:28:11,865 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:28:11,865 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-21 16:28:11,865 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-21 16:28:11,866 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:28:11,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:28:11,867 INFO L85 PathProgramCache]: Analyzing trace with hash -776855734, now seen corresponding path program 1 times [2022-11-21 16:28:11,867 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:28:11,867 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [708631165] [2022-11-21 16:28:11,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:28:11,868 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:28:11,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:28:12,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-21 16:28:12,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:28:12,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-21 16:28:12,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:28:12,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-11-21 16:28:12,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:28:12,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:28:12,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:28:12,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-11-21 16:28:12,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:28:12,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-11-21 16:28:12,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:28:12,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:28:13,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:28:13,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-21 16:28:13,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:28:13,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-11-21 16:28:13,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:28:13,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-11-21 16:28:13,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:28:13,057 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-11-21 16:28:13,057 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:28:13,057 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [708631165] [2022-11-21 16:28:13,057 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [708631165] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 16:28:13,057 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1744541358] [2022-11-21 16:28:13,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:28:13,058 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 16:28:13,058 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d0c5dd0-da42-4797-9672-a20a966661d6/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:28:13,061 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d0c5dd0-da42-4797-9672-a20a966661d6/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 16:28:13,083 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d0c5dd0-da42-4797-9672-a20a966661d6/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-21 16:28:13,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:28:13,239 INFO L263 TraceCheckSpWp]: Trace formula consists of 291 conjuncts, 94 conjunts are in the unsatisfiable core [2022-11-21 16:28:13,248 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 16:28:13,378 INFO L350 Elim1Store]: Elim1 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 [2022-11-21 16:28:17,253 INFO L321 Elim1Store]: treesize reduction 168, result has 24.0 percent of original size [2022-11-21 16:28:17,253 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 11 new quantified variables, introduced 21 case distinctions, treesize of input 179 treesize of output 163 [2022-11-21 16:28:17,521 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 13 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-21 16:28:17,521 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-21 16:28:30,353 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 7 proven. 7 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-11-21 16:28:30,354 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1744541358] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-21 16:28:30,354 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-21 16:28:30,354 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 29, 20] total 55 [2022-11-21 16:28:30,354 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2065500133] [2022-11-21 16:28:30,355 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-21 16:28:30,355 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 55 states [2022-11-21 16:28:30,356 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:28:30,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 55 interpolants. [2022-11-21 16:28:30,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=166, Invalid=2804, Unknown=0, NotChecked=0, Total=2970 [2022-11-21 16:28:30,358 INFO L87 Difference]: Start difference. First operand 60 states and 63 transitions. Second operand has 55 states, 45 states have (on average 2.3333333333333335) internal successors, (105), 40 states have internal predecessors, (105), 16 states have call successors, (28), 6 states have call predecessors, (28), 14 states have return successors, (27), 17 states have call predecessors, (27), 14 states have call successors, (27) [2022-11-21 16:28:31,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:28:31,479 INFO L93 Difference]: Finished difference Result 64 states and 66 transitions. [2022-11-21 16:28:31,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-21 16:28:31,479 INFO L78 Accepts]: Start accepts. Automaton has has 55 states, 45 states have (on average 2.3333333333333335) internal successors, (105), 40 states have internal predecessors, (105), 16 states have call successors, (28), 6 states have call predecessors, (28), 14 states have return successors, (27), 17 states have call predecessors, (27), 14 states have call successors, (27) Word has length 69 [2022-11-21 16:28:31,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:28:31,480 INFO L225 Difference]: With dead ends: 64 [2022-11-21 16:28:31,480 INFO L226 Difference]: Without dead ends: 0 [2022-11-21 16:28:31,482 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 110 SyntacticMatches, 2 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 635 ImplicationChecksByTransitivity, 13.7s TimeCoverageRelationStatistics Valid=207, Invalid=3575, Unknown=0, NotChecked=0, Total=3782 [2022-11-21 16:28:31,483 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 12 mSDsluCounter, 196 mSDsCounter, 0 mSdLazyCounter, 516 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 206 SdHoareTripleChecker+Invalid, 522 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 516 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-21 16:28:31,483 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 206 Invalid, 522 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 516 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-21 16:28:31,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-21 16:28:31,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-21 16:28:31,484 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) [2022-11-21 16:28:31,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-21 16:28:31,485 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 69 [2022-11-21 16:28:31,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:28:31,485 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-21 16:28:31,485 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 55 states, 45 states have (on average 2.3333333333333335) internal successors, (105), 40 states have internal predecessors, (105), 16 states have call successors, (28), 6 states have call predecessors, (28), 14 states have return successors, (27), 17 states have call predecessors, (27), 14 states have call successors, (27) [2022-11-21 16:28:31,486 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-21 16:28:31,486 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-21 16:28:31,488 INFO L805 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-21 16:28:31,496 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d0c5dd0-da42-4797-9672-a20a966661d6/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-11-21 16:28:31,689 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d0c5dd0-da42-4797-9672-a20a966661d6/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 16:28:31,692 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-21 16:28:31,769 INFO L899 garLoopResultBuilder]: For program point L6927-1(lines 6927 6929) no Hoare annotation was computed. [2022-11-21 16:28:31,769 INFO L895 garLoopResultBuilder]: At program point L6927(lines 6927 6929) the Hoare annotation is: (and (= |bounded_malloc_#in~size| bounded_malloc_~size) (= |old(#length)| |#length|) (= |old(#valid)| |#valid|)) [2022-11-21 16:28:31,769 INFO L895 garLoopResultBuilder]: At program point bounded_mallocENTRY(lines 6926 6931) the Hoare annotation is: (and (= |old(#length)| |#length|) (= |old(#valid)| |#valid|)) [2022-11-21 16:28:31,769 INFO L899 garLoopResultBuilder]: For program point bounded_mallocFINAL(lines 6926 6931) no Hoare annotation was computed. [2022-11-21 16:28:31,769 INFO L899 garLoopResultBuilder]: For program point bounded_mallocEXIT(lines 6926 6931) no Hoare annotation was computed. [2022-11-21 16:28:31,769 INFO L899 garLoopResultBuilder]: For program point nondet_boolFINAL(line 261) no Hoare annotation was computed. [2022-11-21 16:28:31,770 INFO L899 garLoopResultBuilder]: For program point nondet_boolEXIT(line 261) no Hoare annotation was computed. [2022-11-21 16:28:31,770 INFO L902 garLoopResultBuilder]: At program point nondet_boolENTRY(line 261) the Hoare annotation is: true [2022-11-21 16:28:31,770 INFO L902 garLoopResultBuilder]: At program point aws_string_bytesENTRY(lines 6292 6296) the Hoare annotation is: true [2022-11-21 16:28:31,770 INFO L899 garLoopResultBuilder]: For program point aws_string_bytesEXIT(lines 6292 6296) no Hoare annotation was computed. [2022-11-21 16:28:31,770 INFO L902 garLoopResultBuilder]: At program point L6294(line 6294) the Hoare annotation is: true [2022-11-21 16:28:31,770 INFO L899 garLoopResultBuilder]: For program point aws_string_bytesFINAL(lines 6292 6296) no Hoare annotation was computed. [2022-11-21 16:28:31,770 INFO L902 garLoopResultBuilder]: At program point L6294-1(line 6294) the Hoare annotation is: true [2022-11-21 16:28:31,770 INFO L899 garLoopResultBuilder]: For program point L6294-2(line 6294) no Hoare annotation was computed. [2022-11-21 16:28:31,770 INFO L899 garLoopResultBuilder]: For program point L211-2(lines 210 212) no Hoare annotation was computed. [2022-11-21 16:28:31,771 INFO L902 garLoopResultBuilder]: At program point assume_abort_if_notENTRY(lines 210 212) the Hoare annotation is: true [2022-11-21 16:28:31,771 INFO L899 garLoopResultBuilder]: For program point L211(line 211) no Hoare annotation was computed. [2022-11-21 16:28:31,771 INFO L899 garLoopResultBuilder]: For program point assume_abort_if_notEXIT(lines 210 212) no Hoare annotation was computed. [2022-11-21 16:28:31,771 INFO L899 garLoopResultBuilder]: For program point can_fail_allocatorFINAL(lines 6933 6935) no Hoare annotation was computed. [2022-11-21 16:28:31,771 INFO L899 garLoopResultBuilder]: For program point can_fail_allocatorEXIT(lines 6933 6935) no Hoare annotation was computed. [2022-11-21 16:28:31,771 INFO L902 garLoopResultBuilder]: At program point can_fail_allocatorENTRY(lines 6933 6935) the Hoare annotation is: true [2022-11-21 16:28:31,771 INFO L899 garLoopResultBuilder]: For program point L6306-3(line 6306) no Hoare annotation was computed. [2022-11-21 16:28:31,771 INFO L899 garLoopResultBuilder]: For program point L6306-2(line 6306) no Hoare annotation was computed. [2022-11-21 16:28:31,771 INFO L902 garLoopResultBuilder]: At program point aws_string_is_validENTRY(lines 6302 6307) the Hoare annotation is: true [2022-11-21 16:28:31,772 INFO L899 garLoopResultBuilder]: For program point L6306-5(line 6306) no Hoare annotation was computed. [2022-11-21 16:28:31,772 INFO L899 garLoopResultBuilder]: For program point aws_string_is_validFINAL(lines 6302 6307) no Hoare annotation was computed. [2022-11-21 16:28:31,772 INFO L899 garLoopResultBuilder]: For program point aws_string_is_validEXIT(lines 6302 6307) no Hoare annotation was computed. [2022-11-21 16:28:31,772 INFO L899 garLoopResultBuilder]: For program point L6306(line 6306) no Hoare annotation was computed. [2022-11-21 16:28:31,772 INFO L899 garLoopResultBuilder]: For program point nondet_uint64_tEXIT(line 266) no Hoare annotation was computed. [2022-11-21 16:28:31,772 INFO L902 garLoopResultBuilder]: At program point nondet_uint64_tENTRY(line 266) the Hoare annotation is: true [2022-11-21 16:28:31,772 INFO L899 garLoopResultBuilder]: For program point nondet_uint64_tFINAL(line 266) no Hoare annotation was computed. [2022-11-21 16:28:31,772 INFO L895 garLoopResultBuilder]: At program point L6846(line 6846) the Hoare annotation is: (and (not (<= (+ (div |ULTIMATE.start_ensure_string_is_allocated_bounded_length_~max_size#1| 18446744073709551616) 1) 0)) (<= |ULTIMATE.start_ensure_string_is_allocated_bounded_length_~max_size#1| 1234549)) [2022-11-21 16:28:31,772 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-21 16:28:31,772 INFO L899 garLoopResultBuilder]: For program point L6854-5(lines 6854 6855) no Hoare annotation was computed. [2022-11-21 16:28:31,773 INFO L899 garLoopResultBuilder]: For program point L7261-2(line 7261) no Hoare annotation was computed. [2022-11-21 16:28:31,773 INFO L899 garLoopResultBuilder]: For program point L7259(lines 7259 7263) no Hoare annotation was computed. [2022-11-21 16:28:31,773 INFO L895 garLoopResultBuilder]: At program point L7261-1(line 7261) the Hoare annotation is: false [2022-11-21 16:28:31,773 INFO L899 garLoopResultBuilder]: For program point L6846-1(line 6846) no Hoare annotation was computed. [2022-11-21 16:28:31,773 INFO L895 garLoopResultBuilder]: At program point L7261(line 7261) the Hoare annotation is: false [2022-11-21 16:28:31,773 INFO L895 garLoopResultBuilder]: At program point L6859(lines 6850 6860) the Hoare annotation is: false [2022-11-21 16:28:31,773 INFO L899 garLoopResultBuilder]: For program point L6851-1(line 6851) no Hoare annotation was computed. [2022-11-21 16:28:31,773 INFO L895 garLoopResultBuilder]: At program point L6851(line 6851) the Hoare annotation is: (and (<= 0 (+ (* 18446744073709551616 (div (+ (* (- 1) |ULTIMATE.start_ensure_string_is_allocated_bounded_length_~len~1#1|) 1234548) 18446744073709551616)) |ULTIMATE.start_ensure_string_is_allocated_bounded_length_~len~1#1|)) (not (<= (+ (div |ULTIMATE.start_ensure_string_is_allocated_bounded_length_~max_size#1| 18446744073709551616) 1) 0)) (<= |ULTIMATE.start_ensure_string_is_allocated_bounded_length_~max_size#1| 1234549) (<= 0 (+ |ULTIMATE.start_ensure_string_is_allocated_~len#1| (* 18446744073709551616 (div (+ 1234548 (* (- 1) |ULTIMATE.start_ensure_string_is_allocated_~len#1|)) 18446744073709551616))))) [2022-11-21 16:28:31,773 INFO L895 garLoopResultBuilder]: At program point L7262(line 7262) the Hoare annotation is: false [2022-11-21 16:28:31,774 INFO L895 garLoopResultBuilder]: At program point L6847(lines 6844 6848) the Hoare annotation is: false [2022-11-21 16:28:31,774 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-11-21 16:28:31,774 INFO L895 garLoopResultBuilder]: At program point L7264(line 7264) the Hoare annotation is: (and (not (= |ULTIMATE.start_ensure_string_is_allocated_#res#1.base| 0)) (not (= |ULTIMATE.start_aws_string_bytes_harness_~str~3#1.base| 0)) (not (= |ULTIMATE.start_ensure_string_is_allocated_~str~0#1.base| 0)) (not (= |ULTIMATE.start_ensure_string_is_allocated_nondet_length_#res#1.base| 0)) (not (= |ULTIMATE.start_ensure_string_is_allocated_bounded_length_#res#1.base| 0))) [2022-11-21 16:28:31,774 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-21 16:28:31,774 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-11-21 16:28:31,774 INFO L899 garLoopResultBuilder]: For program point L6845-1(line 6845) no Hoare annotation was computed. [2022-11-21 16:28:31,774 INFO L899 garLoopResultBuilder]: For program point L7262-2(line 7262) no Hoare annotation was computed. [2022-11-21 16:28:31,775 INFO L895 garLoopResultBuilder]: At program point L6845(line 6845) the Hoare annotation is: (and (not (<= (+ (div |ULTIMATE.start_ensure_string_is_allocated_bounded_length_~max_size#1| 18446744073709551616) 1) 0)) (<= |ULTIMATE.start_ensure_string_is_allocated_bounded_length_~max_size#1| 1234549)) [2022-11-21 16:28:31,775 INFO L895 garLoopResultBuilder]: At program point L7262-1(line 7262) the Hoare annotation is: false [2022-11-21 16:28:31,775 INFO L895 garLoopResultBuilder]: At program point L6839(lines 6837 6842) the Hoare annotation is: false [2022-11-21 16:28:31,775 INFO L895 garLoopResultBuilder]: At program point L6854(line 6854) the Hoare annotation is: false [2022-11-21 16:28:31,775 INFO L899 garLoopResultBuilder]: For program point L6854-3(line 6854) no Hoare annotation was computed. [2022-11-21 16:28:31,775 INFO L895 garLoopResultBuilder]: At program point L6854-2(line 6854) the Hoare annotation is: false [2022-11-21 16:28:31,775 INFO L899 garLoopResultBuilder]: For program point L6854-1(lines 6854 6855) no Hoare annotation was computed. [2022-11-21 16:28:31,775 INFO L899 garLoopResultBuilder]: For program point L223(line 223) no Hoare annotation was computed. [2022-11-21 16:28:31,776 INFO L902 garLoopResultBuilder]: At program point __VERIFIER_assertENTRY(lines 222 224) the Hoare annotation is: true [2022-11-21 16:28:31,776 INFO L899 garLoopResultBuilder]: For program point L223-1(line 223) no Hoare annotation was computed. [2022-11-21 16:28:31,776 INFO L899 garLoopResultBuilder]: For program point L223-3(lines 222 224) no Hoare annotation was computed. [2022-11-21 16:28:31,776 INFO L899 garLoopResultBuilder]: For program point __VERIFIER_assertEXIT(lines 222 224) no Hoare annotation was computed. [2022-11-21 16:28:31,776 INFO L899 garLoopResultBuilder]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 223) no Hoare annotation was computed. [2022-11-21 16:28:31,780 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-11-21 16:28:31,782 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-21 16:28:31,796 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 04:28:31 BoogieIcfgContainer [2022-11-21 16:28:31,796 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-21 16:28:31,797 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-21 16:28:31,797 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-21 16:28:31,797 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-21 16:28:31,798 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:28:07" (3/4) ... [2022-11-21 16:28:31,801 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-21 16:28:31,808 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure bounded_malloc [2022-11-21 16:28:31,808 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure nondet_uint64_t [2022-11-21 16:28:31,808 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure nondet_bool [2022-11-21 16:28:31,809 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure aws_string_bytes [2022-11-21 16:28:31,809 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2022-11-21 16:28:31,809 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2022-11-21 16:28:31,809 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure can_fail_allocator [2022-11-21 16:28:31,809 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure aws_string_is_valid [2022-11-21 16:28:31,813 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2022-11-21 16:28:31,813 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-11-21 16:28:31,814 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-21 16:28:31,814 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-21 16:28:31,840 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(\result == 0) && !(str == 0)) && !(str == 0)) && !(\result == 0)) && !(\result == 0) [2022-11-21 16:28:31,857 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d0c5dd0-da42-4797-9672-a20a966661d6/bin/uautomizer-vX5HgA9Q3a/witness.graphml [2022-11-21 16:28:31,858 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-21 16:28:31,858 INFO L158 Benchmark]: Toolchain (without parser) took 27782.91ms. Allocated memory was 192.9MB in the beginning and 356.5MB in the end (delta: 163.6MB). Free memory was 142.8MB in the beginning and 137.9MB in the end (delta: 4.9MB). Peak memory consumption was 170.5MB. Max. memory is 16.1GB. [2022-11-21 16:28:31,859 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 192.9MB. Free memory is still 163.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 16:28:31,859 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2677.16ms. Allocated memory was 192.9MB in the beginning and 245.4MB in the end (delta: 52.4MB). Free memory was 142.8MB in the beginning and 143.1MB in the end (delta: -293.1kB). Peak memory consumption was 87.7MB. Max. memory is 16.1GB. [2022-11-21 16:28:31,859 INFO L158 Benchmark]: Boogie Procedure Inliner took 143.73ms. Allocated memory is still 245.4MB. Free memory was 143.1MB in the beginning and 137.9MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-21 16:28:31,860 INFO L158 Benchmark]: Boogie Preprocessor took 75.17ms. Allocated memory is still 245.4MB. Free memory was 137.9MB in the beginning and 134.8MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-21 16:28:31,860 INFO L158 Benchmark]: RCFGBuilder took 705.07ms. Allocated memory is still 245.4MB. Free memory was 134.8MB in the beginning and 114.8MB in the end (delta: 19.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-11-21 16:28:31,860 INFO L158 Benchmark]: TraceAbstraction took 24103.25ms. Allocated memory was 245.4MB in the beginning and 356.5MB in the end (delta: 111.1MB). Free memory was 114.8MB in the beginning and 142.1MB in the end (delta: -27.3MB). Peak memory consumption was 84.9MB. Max. memory is 16.1GB. [2022-11-21 16:28:31,861 INFO L158 Benchmark]: Witness Printer took 60.73ms. Allocated memory is still 356.5MB. Free memory was 142.1MB in the beginning and 137.9MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-21 16:28:31,862 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 192.9MB. Free memory is still 163.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2677.16ms. Allocated memory was 192.9MB in the beginning and 245.4MB in the end (delta: 52.4MB). Free memory was 142.8MB in the beginning and 143.1MB in the end (delta: -293.1kB). Peak memory consumption was 87.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 143.73ms. Allocated memory is still 245.4MB. Free memory was 143.1MB in the beginning and 137.9MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 75.17ms. Allocated memory is still 245.4MB. Free memory was 137.9MB in the beginning and 134.8MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 705.07ms. Allocated memory is still 245.4MB. Free memory was 134.8MB in the beginning and 114.8MB in the end (delta: 19.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 24103.25ms. Allocated memory was 245.4MB in the beginning and 356.5MB in the end (delta: 111.1MB). Free memory was 114.8MB in the beginning and 142.1MB in the end (delta: -27.3MB). Peak memory consumption was 84.9MB. Max. memory is 16.1GB. * Witness Printer took 60.73ms. Allocated memory is still 356.5MB. Free memory was 142.1MB in the beginning and 137.9MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. 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 9 procedures, 63 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 24.0s, OverallIterations: 3, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 159 SdHoareTripleChecker+Valid, 1.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 154 mSDsluCounter, 708 SdHoareTripleChecker+Invalid, 1.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 641 mSDsCounter, 78 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1670 IncrementalHoareTripleChecker+Invalid, 1748 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 78 mSolverCounterUnsat, 67 mSDtfsCounter, 1670 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 249 GetRequests, 141 SyntacticMatches, 2 SemanticMatches, 106 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 705 ImplicationChecksByTransitivity, 14.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=63occurred in iteration=0, InterpolantAutomatonStates: 42, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 24 LocationsWithAnnotation, 42 PreInvPairs, 45 NumberOfFragments, 118 HoareAnnotationTreeSize, 42 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 24 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 20.3s InterpolantComputationTime, 248 NumberOfCodeBlocks, 248 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 312 ConstructedInterpolants, 17 QuantifiedInterpolants, 5045 SizeOfPredicates, 29 NumberOfNonLiveVariables, 291 ConjunctsInSsa, 94 ConjunctsInUnsatCore, 5 InterpolantComputations, 2 PerfectInterpolantSequences, 72/87 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: 7264]: Loop Invariant Derived loop invariant: (((!(\result == 0) && !(str == 0)) && !(str == 0)) && !(\result == 0)) && !(\result == 0) - InvariantResult [Line: 6850]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 6837]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 6844]: Loop Invariant Derived loop invariant: 0 RESULT: Ultimate proved your program to be correct! [2022-11-21 16:28:31,903 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d0c5dd0-da42-4797-9672-a20a966661d6/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE