./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_from_string_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9ad7fb26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8d49b4b-9aef-43da-b6ca-def529ca9d19/bin/uautomizer-tBqnrhUYjU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8d49b4b-9aef-43da-b6ca-def529ca9d19/bin/uautomizer-tBqnrhUYjU/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8d49b4b-9aef-43da-b6ca-def529ca9d19/bin/uautomizer-tBqnrhUYjU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8d49b4b-9aef-43da-b6ca-def529ca9d19/bin/uautomizer-tBqnrhUYjU/config/AutomizerReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_from_string_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8d49b4b-9aef-43da-b6ca-def529ca9d19/bin/uautomizer-tBqnrhUYjU/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8d49b4b-9aef-43da-b6ca-def529ca9d19/bin/uautomizer-tBqnrhUYjU --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 c3b06783378816ab028e38f9f4609990f4d1028238bbcb0e88638ebb644bb54d --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-02 23:19:11,369 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-02 23:19:11,371 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-02 23:19:11,419 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-02 23:19:11,420 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-02 23:19:11,422 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-02 23:19:11,424 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-02 23:19:11,427 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-02 23:19:11,430 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-02 23:19:11,432 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-02 23:19:11,433 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-02 23:19:11,436 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-02 23:19:11,439 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-02 23:19:11,443 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-02 23:19:11,446 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-02 23:19:11,451 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-02 23:19:11,453 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-02 23:19:11,461 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-02 23:19:11,463 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-02 23:19:11,466 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-02 23:19:11,469 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-02 23:19:11,471 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-02 23:19:11,473 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-02 23:19:11,474 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-02 23:19:11,479 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-02 23:19:11,479 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-02 23:19:11,480 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-02 23:19:11,481 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-02 23:19:11,482 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-02 23:19:11,483 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-02 23:19:11,484 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-02 23:19:11,485 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-02 23:19:11,486 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-02 23:19:11,487 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-02 23:19:11,489 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-02 23:19:11,490 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-02 23:19:11,491 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-02 23:19:11,491 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-02 23:19:11,492 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-02 23:19:11,493 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-02 23:19:11,495 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-02 23:19:11,496 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8d49b4b-9aef-43da-b6ca-def529ca9d19/bin/uautomizer-tBqnrhUYjU/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-02 23:19:11,547 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-02 23:19:11,548 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-02 23:19:11,549 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-02 23:19:11,549 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-02 23:19:11,551 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-02 23:19:11,551 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-02 23:19:11,551 INFO L138 SettingsManager]: * Use SBE=true [2021-11-02 23:19:11,552 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-02 23:19:11,552 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-02 23:19:11,552 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-02 23:19:11,554 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-02 23:19:11,554 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-02 23:19:11,554 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-02 23:19:11,555 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-02 23:19:11,555 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-02 23:19:11,555 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-02 23:19:11,556 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-02 23:19:11,556 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-02 23:19:11,556 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-02 23:19:11,557 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-02 23:19:11,557 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-02 23:19:11,557 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-02 23:19:11,558 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-02 23:19:11,558 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-02 23:19:11,558 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-02 23:19:11,558 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-02 23:19:11,559 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-02 23:19:11,559 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-02 23:19:11,559 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-02 23:19:11,561 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_b8d49b4b-9aef-43da-b6ca-def529ca9d19/bin/uautomizer-tBqnrhUYjU/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8d49b4b-9aef-43da-b6ca-def529ca9d19/bin/uautomizer-tBqnrhUYjU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c3b06783378816ab028e38f9f4609990f4d1028238bbcb0e88638ebb644bb54d [2021-11-02 23:19:11,939 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-02 23:19:11,967 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-02 23:19:11,971 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-02 23:19:11,973 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-02 23:19:11,978 INFO L275 PluginConnector]: CDTParser initialized [2021-11-02 23:19:11,979 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8d49b4b-9aef-43da-b6ca-def529ca9d19/bin/uautomizer-tBqnrhUYjU/../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_from_string_harness.i [2021-11-02 23:19:12,066 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8d49b4b-9aef-43da-b6ca-def529ca9d19/bin/uautomizer-tBqnrhUYjU/data/f9a6e3900/5cb11c1f04734a489ac335619415c83c/FLAG462493b19 [2021-11-02 23:19:13,129 INFO L306 CDTParser]: Found 1 translation units. [2021-11-02 23:19:13,132 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8d49b4b-9aef-43da-b6ca-def529ca9d19/sv-benchmarks/c/aws-c-common/aws_byte_cursor_from_string_harness.i [2021-11-02 23:19:13,184 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8d49b4b-9aef-43da-b6ca-def529ca9d19/bin/uautomizer-tBqnrhUYjU/data/f9a6e3900/5cb11c1f04734a489ac335619415c83c/FLAG462493b19 [2021-11-02 23:19:13,519 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8d49b4b-9aef-43da-b6ca-def529ca9d19/bin/uautomizer-tBqnrhUYjU/data/f9a6e3900/5cb11c1f04734a489ac335619415c83c [2021-11-02 23:19:13,521 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-02 23:19:13,523 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-02 23:19:13,524 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-02 23:19:13,524 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-02 23:19:13,528 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-02 23:19:13,529 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 11:19:13" (1/1) ... [2021-11-02 23:19:13,531 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4fd1df9e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:19:13, skipping insertion in model container [2021-11-02 23:19:13,531 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 11:19:13" (1/1) ... [2021-11-02 23:19:13,540 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-02 23:19:13,681 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-02 23:19:14,014 WARN L228 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_b8d49b4b-9aef-43da-b6ca-def529ca9d19/sv-benchmarks/c/aws-c-common/aws_byte_cursor_from_string_harness.i[4501,4514] [2021-11-02 23:19:14,023 WARN L228 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_b8d49b4b-9aef-43da-b6ca-def529ca9d19/sv-benchmarks/c/aws-c-common/aws_byte_cursor_from_string_harness.i[4561,4574] [2021-11-02 23:19:14,054 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-02 23:19:14,061 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-02 23:19:15,243 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-02 23:19:15,244 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-02 23:19:15,244 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-02 23:19:15,245 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-02 23:19:15,246 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-02 23:19:15,260 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-02 23:19:15,261 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-02 23:19:15,263 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-02 23:19:15,264 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-02 23:19:15,778 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-02 23:19:15,780 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-02 23:19:15,782 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-02 23:19:15,783 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-02 23:19:15,786 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-02 23:19:15,787 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-02 23:19:15,788 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-02 23:19:15,789 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-02 23:19:15,790 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-02 23:19:15,791 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-02 23:19:16,014 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-02 23:19:16,133 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-02 23:19:16,134 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-02 23:19:16,282 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-02 23:19:16,403 INFO L203 MainTranslator]: Completed pre-run [2021-11-02 23:19:16,439 WARN L228 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_b8d49b4b-9aef-43da-b6ca-def529ca9d19/sv-benchmarks/c/aws-c-common/aws_byte_cursor_from_string_harness.i[4501,4514] [2021-11-02 23:19:16,440 WARN L228 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_b8d49b4b-9aef-43da-b6ca-def529ca9d19/sv-benchmarks/c/aws-c-common/aws_byte_cursor_from_string_harness.i[4561,4574] [2021-11-02 23:19:16,442 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-02 23:19:16,449 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-02 23:19:16,513 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-02 23:19:16,514 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-02 23:19:16,515 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-02 23:19:16,515 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-02 23:19:16,517 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-02 23:19:16,528 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-02 23:19:16,529 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-02 23:19:16,530 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-02 23:19:16,531 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-02 23:19:16,647 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-02 23:19:16,650 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-02 23:19:16,651 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-02 23:19:16,652 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-02 23:19:16,654 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-02 23:19:16,655 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-02 23:19:16,662 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-02 23:19:16,663 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-02 23:19:16,664 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-02 23:19:16,664 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-02 23:19:16,704 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-02 23:19:16,798 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-02 23:19:16,799 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-02 23:19:16,874 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-02 23:19:17,267 INFO L208 MainTranslator]: Completed translation [2021-11-02 23:19:17,268 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:19:17 WrapperNode [2021-11-02 23:19:17,268 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-02 23:19:17,269 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-02 23:19:17,269 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-02 23:19:17,269 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-02 23:19:17,283 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:19:17" (1/1) ... [2021-11-02 23:19:17,434 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:19:17" (1/1) ... [2021-11-02 23:19:17,553 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-02 23:19:17,554 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-02 23:19:17,554 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-02 23:19:17,554 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-02 23:19:17,565 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:19:17" (1/1) ... [2021-11-02 23:19:17,565 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:19:17" (1/1) ... [2021-11-02 23:19:17,576 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:19:17" (1/1) ... [2021-11-02 23:19:17,577 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:19:17" (1/1) ... [2021-11-02 23:19:17,640 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:19:17" (1/1) ... [2021-11-02 23:19:17,645 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:19:17" (1/1) ... [2021-11-02 23:19:17,670 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:19:17" (1/1) ... [2021-11-02 23:19:17,702 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-02 23:19:17,703 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-02 23:19:17,703 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-02 23:19:17,703 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-02 23:19:17,704 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:19:17" (1/1) ... [2021-11-02 23:19:17,713 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-02 23:19:17,727 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8d49b4b-9aef-43da-b6ca-def529ca9d19/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:19:17,742 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8d49b4b-9aef-43da-b6ca-def529ca9d19/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-02 23:19:17,761 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8d49b4b-9aef-43da-b6ca-def529ca9d19/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-02 23:19:17,808 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-02 23:19:17,809 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-02 23:19:17,809 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-02 23:19:17,809 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-02 23:19:17,809 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-02 23:19:17,810 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-02 23:19:17,810 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-02 23:19:17,810 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-02 23:19:17,811 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-02 23:19:17,811 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-02 23:19:17,813 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-02 23:19:17,813 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-02 23:19:29,739 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-02 23:19:29,740 INFO L299 CfgBuilder]: Removed 64 assume(true) statements. [2021-11-02 23:19:29,744 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 11:19:29 BoogieIcfgContainer [2021-11-02 23:19:29,744 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-02 23:19:29,749 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-02 23:19:29,749 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-02 23:19:29,753 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-02 23:19:29,754 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 11:19:13" (1/3) ... [2021-11-02 23:19:29,755 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ff9f63d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 11:19:29, skipping insertion in model container [2021-11-02 23:19:29,755 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:19:17" (2/3) ... [2021-11-02 23:19:29,756 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ff9f63d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 11:19:29, skipping insertion in model container [2021-11-02 23:19:29,757 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 11:19:29" (3/3) ... [2021-11-02 23:19:29,760 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_byte_cursor_from_string_harness.i [2021-11-02 23:19:29,771 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-02 23:19:29,771 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 7 error locations. [2021-11-02 23:19:29,834 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-02 23:19:29,844 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-02 23:19:29,845 INFO L340 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2021-11-02 23:19:29,871 INFO L276 IsEmpty]: Start isEmpty. Operand has 96 states, 88 states have (on average 1.4318181818181819) internal successors, (126), 95 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:19:29,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-11-02 23:19:29,897 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:19:29,899 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 23:19:29,900 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-11-02 23:19:29,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:19:29,907 INFO L85 PathProgramCache]: Analyzing trace with hash 1013887435, now seen corresponding path program 1 times [2021-11-02 23:19:29,918 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:19:29,918 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [125930722] [2021-11-02 23:19:29,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:19:29,920 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:19:30,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:19:30,873 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:19:30,874 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:19:30,875 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [125930722] [2021-11-02 23:19:30,876 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [125930722] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:19:30,876 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:19:30,876 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-02 23:19:30,878 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2100883718] [2021-11-02 23:19:30,884 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-02 23:19:30,885 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:19:30,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-02 23:19:30,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-02 23:19:30,911 INFO L87 Difference]: Start difference. First operand has 96 states, 88 states have (on average 1.4318181818181819) internal successors, (126), 95 states have internal predecessors, (126), 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) Second operand has 2 states, 2 states have (on average 17.5) internal successors, (35), 2 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:19:30,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:19:30,957 INFO L93 Difference]: Finished difference Result 188 states and 247 transitions. [2021-11-02 23:19:30,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-02 23:19:30,959 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 17.5) internal successors, (35), 2 states have internal predecessors, (35), 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) Word has length 35 [2021-11-02 23:19:30,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:19:30,973 INFO L225 Difference]: With dead ends: 188 [2021-11-02 23:19:30,973 INFO L226 Difference]: Without dead ends: 90 [2021-11-02 23:19:30,981 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-02 23:19:31,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2021-11-02 23:19:31,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 90. [2021-11-02 23:19:31,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 83 states have (on average 1.2771084337349397) internal successors, (106), 89 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:19:31,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 106 transitions. [2021-11-02 23:19:31,035 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 106 transitions. Word has length 35 [2021-11-02 23:19:31,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:19:31,036 INFO L470 AbstractCegarLoop]: Abstraction has 90 states and 106 transitions. [2021-11-02 23:19:31,036 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 17.5) internal successors, (35), 2 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:19:31,038 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 106 transitions. [2021-11-02 23:19:31,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-11-02 23:19:31,044 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:19:31,045 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 23:19:31,045 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-02 23:19:31,046 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-11-02 23:19:31,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:19:31,049 INFO L85 PathProgramCache]: Analyzing trace with hash 1082279499, now seen corresponding path program 1 times [2021-11-02 23:19:31,049 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:19:31,050 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [371918919] [2021-11-02 23:19:31,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:19:31,051 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:19:31,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:19:31,558 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:19:31,558 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:19:31,558 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [371918919] [2021-11-02 23:19:31,559 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [371918919] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:19:31,559 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:19:31,559 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-02 23:19:31,559 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [629176886] [2021-11-02 23:19:31,561 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-02 23:19:31,562 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:19:31,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-02 23:19:31,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 23:19:31,563 INFO L87 Difference]: Start difference. First operand 90 states and 106 transitions. Second operand has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:19:31,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:19:31,636 INFO L93 Difference]: Finished difference Result 140 states and 162 transitions. [2021-11-02 23:19:31,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-02 23:19:31,638 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 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) Word has length 35 [2021-11-02 23:19:31,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:19:31,640 INFO L225 Difference]: With dead ends: 140 [2021-11-02 23:19:31,641 INFO L226 Difference]: Without dead ends: 90 [2021-11-02 23:19:31,643 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 23:19:31,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2021-11-02 23:19:31,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 90. [2021-11-02 23:19:31,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 83 states have (on average 1.2650602409638554) internal successors, (105), 89 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:19:31,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 105 transitions. [2021-11-02 23:19:31,662 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 105 transitions. Word has length 35 [2021-11-02 23:19:31,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:19:31,663 INFO L470 AbstractCegarLoop]: Abstraction has 90 states and 105 transitions. [2021-11-02 23:19:31,663 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:19:31,664 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 105 transitions. [2021-11-02 23:19:31,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-11-02 23:19:31,666 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:19:31,666 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 23:19:31,667 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-02 23:19:31,667 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-11-02 23:19:31,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:19:31,668 INFO L85 PathProgramCache]: Analyzing trace with hash -1002728890, now seen corresponding path program 1 times [2021-11-02 23:19:31,668 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:19:31,669 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1981128753] [2021-11-02 23:19:31,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:19:31,669 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:19:32,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:19:32,739 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:19:32,739 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:19:32,739 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1981128753] [2021-11-02 23:19:32,740 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1981128753] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:19:32,740 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:19:32,740 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-02 23:19:32,740 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1760809778] [2021-11-02 23:19:32,741 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-02 23:19:32,741 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:19:32,742 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-02 23:19:32,742 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-02 23:19:32,742 INFO L87 Difference]: Start difference. First operand 90 states and 105 transitions. Second operand has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 6 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:19:33,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:19:33,120 INFO L93 Difference]: Finished difference Result 133 states and 149 transitions. [2021-11-02 23:19:33,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-02 23:19:33,122 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 6 states have internal predecessors, (37), 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) Word has length 37 [2021-11-02 23:19:33,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:19:33,123 INFO L225 Difference]: With dead ends: 133 [2021-11-02 23:19:33,124 INFO L226 Difference]: Without dead ends: 129 [2021-11-02 23:19:33,124 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-11-02 23:19:33,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2021-11-02 23:19:33,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 98. [2021-11-02 23:19:33,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 91 states have (on average 1.2417582417582418) internal successors, (113), 97 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:19:33,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 113 transitions. [2021-11-02 23:19:33,144 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 113 transitions. Word has length 37 [2021-11-02 23:19:33,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:19:33,145 INFO L470 AbstractCegarLoop]: Abstraction has 98 states and 113 transitions. [2021-11-02 23:19:33,146 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 6 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:19:33,146 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 113 transitions. [2021-11-02 23:19:33,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-11-02 23:19:33,148 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:19:33,148 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 23:19:33,148 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-02 23:19:33,148 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-11-02 23:19:33,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:19:33,149 INFO L85 PathProgramCache]: Analyzing trace with hash 1300883710, now seen corresponding path program 1 times [2021-11-02 23:19:33,150 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:19:33,150 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [142266122] [2021-11-02 23:19:33,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:19:33,150 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:19:33,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:19:34,071 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:19:34,072 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:19:34,072 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [142266122] [2021-11-02 23:19:34,072 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [142266122] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:19:34,072 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:19:34,073 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-02 23:19:34,073 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1768138699] [2021-11-02 23:19:34,073 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-02 23:19:34,073 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:19:34,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-02 23:19:34,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-11-02 23:19:34,074 INFO L87 Difference]: Start difference. First operand 98 states and 113 transitions. Second operand has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 6 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:19:34,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:19:34,293 INFO L93 Difference]: Finished difference Result 98 states and 113 transitions. [2021-11-02 23:19:34,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-02 23:19:34,293 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 6 states have internal predecessors, (41), 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) Word has length 41 [2021-11-02 23:19:34,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:19:34,294 INFO L225 Difference]: With dead ends: 98 [2021-11-02 23:19:34,294 INFO L226 Difference]: Without dead ends: 0 [2021-11-02 23:19:34,295 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2021-11-02 23:19:34,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-02 23:19:34,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-02 23:19:34,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:19:34,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-02 23:19:34,296 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 41 [2021-11-02 23:19:34,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:19:34,296 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-02 23:19:34,296 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 6 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:19:34,296 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-02 23:19:34,296 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-02 23:19:34,299 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-11-02 23:19:34,299 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION [2021-11-02 23:19:34,300 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION [2021-11-02 23:19:34,300 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION [2021-11-02 23:19:34,300 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION [2021-11-02 23:19:34,300 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION [2021-11-02 23:19:34,300 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION [2021-11-02 23:19:34,301 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-02 23:19:34,305 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-11-02 23:19:34,309 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-02 23:19:34,312 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-02 23:19:34,313 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-02 23:19:34,313 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-02 23:19:34,314 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-02 23:19:34,321 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-02 23:19:34,322 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-02 23:19:34,323 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-02 23:19:34,324 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-02 23:19:34,324 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-02 23:19:34,325 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-02 23:19:34,326 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-02 23:19:34,326 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-02 23:19:34,327 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-02 23:19:34,327 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-02 23:19:34,328 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-02 23:19:34,382 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 223) no Hoare annotation was computed. [2021-11-02 23:19:34,382 INFO L853 garLoopResultBuilder]: At program point L6890(lines 6889 6891) the Hoare annotation is: false [2021-11-02 23:19:34,382 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-11-02 23:19:34,383 INFO L857 garLoopResultBuilder]: For program point L7370(lines 7370 7371) no Hoare annotation was computed. [2021-11-02 23:19:34,383 INFO L857 garLoopResultBuilder]: For program point L7370-4(lines 7370 7371) no Hoare annotation was computed. [2021-11-02 23:19:34,383 INFO L853 garLoopResultBuilder]: At program point L7370-3(lines 7368 7372) the Hoare annotation is: false [2021-11-02 23:19:34,383 INFO L857 garLoopResultBuilder]: For program point L7370-2(lines 7370 7371) no Hoare annotation was computed. [2021-11-02 23:19:34,383 INFO L853 garLoopResultBuilder]: At program point L7370-7(lines 7368 7372) the Hoare annotation is: false [2021-11-02 23:19:34,383 INFO L857 garLoopResultBuilder]: For program point L7370-6(lines 7370 7371) no Hoare annotation was computed. [2021-11-02 23:19:34,383 INFO L857 garLoopResultBuilder]: For program point L7371(line 7371) no Hoare annotation was computed. [2021-11-02 23:19:34,384 INFO L853 garLoopResultBuilder]: At program point L9518(lines 9516 9519) the Hoare annotation is: false [2021-11-02 23:19:34,384 INFO L857 garLoopResultBuilder]: For program point L7371-5(line 7371) no Hoare annotation was computed. [2021-11-02 23:19:34,384 INFO L857 garLoopResultBuilder]: For program point L7371-4(line 7371) no Hoare annotation was computed. [2021-11-02 23:19:34,384 INFO L857 garLoopResultBuilder]: For program point L7371-2(line 7371) no Hoare annotation was computed. [2021-11-02 23:19:34,384 INFO L857 garLoopResultBuilder]: For program point L7371-8(line 7371) no Hoare annotation was computed. [2021-11-02 23:19:34,384 INFO L857 garLoopResultBuilder]: For program point L7371-6(line 7371) no Hoare annotation was computed. [2021-11-02 23:19:34,384 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION(line 223) no Hoare annotation was computed. [2021-11-02 23:19:34,384 INFO L857 garLoopResultBuilder]: For program point L7371-12(line 7371) no Hoare annotation was computed. [2021-11-02 23:19:34,385 INFO L857 garLoopResultBuilder]: For program point L7371-11(line 7371) no Hoare annotation was computed. [2021-11-02 23:19:34,385 INFO L857 garLoopResultBuilder]: For program point L7371-10(line 7371) no Hoare annotation was computed. [2021-11-02 23:19:34,385 INFO L857 garLoopResultBuilder]: For program point L6810(lines 6810 6811) no Hoare annotation was computed. [2021-11-02 23:19:34,385 INFO L857 garLoopResultBuilder]: For program point L7371-17(line 7371) no Hoare annotation was computed. [2021-11-02 23:19:34,385 INFO L857 garLoopResultBuilder]: For program point L7371-16(line 7371) no Hoare annotation was computed. [2021-11-02 23:19:34,385 INFO L857 garLoopResultBuilder]: For program point L7371-14(line 7371) no Hoare annotation was computed. [2021-11-02 23:19:34,385 INFO L857 garLoopResultBuilder]: For program point L7371-20(line 7371) no Hoare annotation was computed. [2021-11-02 23:19:34,386 INFO L857 garLoopResultBuilder]: For program point L6810-2(lines 6810 6811) no Hoare annotation was computed. [2021-11-02 23:19:34,386 INFO L857 garLoopResultBuilder]: For program point L7371-18(line 7371) no Hoare annotation was computed. [2021-11-02 23:19:34,386 INFO L857 garLoopResultBuilder]: For program point L7371-23(line 7371) no Hoare annotation was computed. [2021-11-02 23:19:34,386 INFO L857 garLoopResultBuilder]: For program point L7371-22(line 7371) no Hoare annotation was computed. [2021-11-02 23:19:34,386 INFO L857 garLoopResultBuilder]: For program point L222(lines 222 224) no Hoare annotation was computed. [2021-11-02 23:19:34,386 INFO L857 garLoopResultBuilder]: For program point L222-1(lines 222 224) no Hoare annotation was computed. [2021-11-02 23:19:34,386 INFO L857 garLoopResultBuilder]: For program point L9537(lines 9537 9545) no Hoare annotation was computed. [2021-11-02 23:19:34,386 INFO L857 garLoopResultBuilder]: For program point L222-2(lines 222 224) no Hoare annotation was computed. [2021-11-02 23:19:34,387 INFO L857 garLoopResultBuilder]: For program point L222-3(lines 222 224) no Hoare annotation was computed. [2021-11-02 23:19:34,387 INFO L857 garLoopResultBuilder]: For program point L222-4(lines 222 224) no Hoare annotation was computed. [2021-11-02 23:19:34,387 INFO L857 garLoopResultBuilder]: For program point L222-5(lines 7101 7111) no Hoare annotation was computed. [2021-11-02 23:19:34,387 INFO L857 garLoopResultBuilder]: For program point L222-6(lines 222 224) no Hoare annotation was computed. [2021-11-02 23:19:34,387 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-11-02 23:19:34,387 INFO L857 garLoopResultBuilder]: For program point L223(line 223) no Hoare annotation was computed. [2021-11-02 23:19:34,387 INFO L857 garLoopResultBuilder]: For program point L223-1(line 223) no Hoare annotation was computed. [2021-11-02 23:19:34,387 INFO L857 garLoopResultBuilder]: For program point L223-3(line 223) no Hoare annotation was computed. [2021-11-02 23:19:34,388 INFO L857 garLoopResultBuilder]: For program point L223-4(line 223) no Hoare annotation was computed. [2021-11-02 23:19:34,388 INFO L857 garLoopResultBuilder]: For program point L223-6(line 223) no Hoare annotation was computed. [2021-11-02 23:19:34,388 INFO L857 garLoopResultBuilder]: For program point L223-7(line 223) no Hoare annotation was computed. [2021-11-02 23:19:34,388 INFO L857 garLoopResultBuilder]: For program point L223-9(line 223) no Hoare annotation was computed. [2021-11-02 23:19:34,388 INFO L857 garLoopResultBuilder]: For program point L223-10(line 223) no Hoare annotation was computed. [2021-11-02 23:19:34,388 INFO L857 garLoopResultBuilder]: For program point L223-12(line 223) no Hoare annotation was computed. [2021-11-02 23:19:34,388 INFO L857 garLoopResultBuilder]: For program point L223-13(line 223) no Hoare annotation was computed. [2021-11-02 23:19:34,388 INFO L857 garLoopResultBuilder]: For program point L223-15(line 223) no Hoare annotation was computed. [2021-11-02 23:19:34,389 INFO L857 garLoopResultBuilder]: For program point L223-16(line 223) no Hoare annotation was computed. [2021-11-02 23:19:34,389 INFO L857 garLoopResultBuilder]: For program point L223-18(line 223) no Hoare annotation was computed. [2021-11-02 23:19:34,389 INFO L857 garLoopResultBuilder]: For program point L223-19(line 223) no Hoare annotation was computed. [2021-11-02 23:19:34,389 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 223) no Hoare annotation was computed. [2021-11-02 23:19:34,389 INFO L853 garLoopResultBuilder]: At program point L6815(lines 6806 6816) the Hoare annotation is: false [2021-11-02 23:19:34,389 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION(line 223) no Hoare annotation was computed. [2021-11-02 23:19:34,389 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-11-02 23:19:34,396 INFO L857 garLoopResultBuilder]: For program point L210(lines 210 212) no Hoare annotation was computed. [2021-11-02 23:19:34,396 INFO L857 garLoopResultBuilder]: For program point L210-1(lines 210 212) no Hoare annotation was computed. [2021-11-02 23:19:34,396 INFO L857 garLoopResultBuilder]: For program point L210-2(lines 210 212) no Hoare annotation was computed. [2021-11-02 23:19:34,396 INFO L857 garLoopResultBuilder]: For program point L210-3(lines 210 212) no Hoare annotation was computed. [2021-11-02 23:19:34,397 INFO L857 garLoopResultBuilder]: For program point L210-4(lines 210 212) no Hoare annotation was computed. [2021-11-02 23:19:34,397 INFO L857 garLoopResultBuilder]: For program point L210-5(lines 210 212) no Hoare annotation was computed. [2021-11-02 23:19:34,397 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION(line 223) no Hoare annotation was computed. [2021-11-02 23:19:34,397 INFO L857 garLoopResultBuilder]: For program point L211(line 211) no Hoare annotation was computed. [2021-11-02 23:19:34,397 INFO L857 garLoopResultBuilder]: For program point L211-2(line 211) no Hoare annotation was computed. [2021-11-02 23:19:34,397 INFO L857 garLoopResultBuilder]: For program point L6256-2(line 6256) no Hoare annotation was computed. [2021-11-02 23:19:34,398 INFO L857 garLoopResultBuilder]: For program point L211-4(line 211) no Hoare annotation was computed. [2021-11-02 23:19:34,398 INFO L857 garLoopResultBuilder]: For program point L6256(line 6256) no Hoare annotation was computed. [2021-11-02 23:19:34,398 INFO L857 garLoopResultBuilder]: For program point L6256-5(line 6256) no Hoare annotation was computed. [2021-11-02 23:19:34,398 INFO L857 garLoopResultBuilder]: For program point L211-6(line 211) no Hoare annotation was computed. [2021-11-02 23:19:34,398 INFO L853 garLoopResultBuilder]: At program point L6256-6(lines 6252 6257) the Hoare annotation is: false [2021-11-02 23:19:34,399 INFO L857 garLoopResultBuilder]: For program point L6256-3(line 6256) no Hoare annotation was computed. [2021-11-02 23:19:34,399 INFO L857 garLoopResultBuilder]: For program point L211-8(line 211) no Hoare annotation was computed. [2021-11-02 23:19:34,399 INFO L857 garLoopResultBuilder]: For program point L6256-9(line 6256) no Hoare annotation was computed. [2021-11-02 23:19:34,399 INFO L857 garLoopResultBuilder]: For program point L211-10(line 211) no Hoare annotation was computed. [2021-11-02 23:19:34,399 INFO L857 garLoopResultBuilder]: For program point L6256-10(line 6256) no Hoare annotation was computed. [2021-11-02 23:19:34,399 INFO L857 garLoopResultBuilder]: For program point L6256-7(line 6256) no Hoare annotation was computed. [2021-11-02 23:19:34,400 INFO L853 garLoopResultBuilder]: At program point L261(line 261) the Hoare annotation is: false [2021-11-02 23:19:34,400 INFO L853 garLoopResultBuilder]: At program point L6256-13(lines 6252 6257) the Hoare annotation is: false [2021-11-02 23:19:34,400 INFO L857 garLoopResultBuilder]: For program point L6256-14(line 6256) no Hoare annotation was computed. [2021-11-02 23:19:34,400 INFO L857 garLoopResultBuilder]: For program point L6256-12(line 6256) no Hoare annotation was computed. [2021-11-02 23:19:34,400 INFO L857 garLoopResultBuilder]: For program point L6256-17(line 6256) no Hoare annotation was computed. [2021-11-02 23:19:34,400 INFO L857 garLoopResultBuilder]: For program point L6256-16(line 6256) no Hoare annotation was computed. [2021-11-02 23:19:34,401 INFO L857 garLoopResultBuilder]: For program point L7099(lines 7099 7112) no Hoare annotation was computed. [2021-11-02 23:19:34,401 INFO L857 garLoopResultBuilder]: For program point L6256-19(line 6256) no Hoare annotation was computed. [2021-11-02 23:19:34,401 INFO L853 garLoopResultBuilder]: At program point L6256-20(lines 6252 6257) the Hoare annotation is: false [2021-11-02 23:19:34,401 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION(line 223) no Hoare annotation was computed. [2021-11-02 23:19:34,401 INFO L853 garLoopResultBuilder]: At program point L6803(lines 6800 6804) the Hoare annotation is: false [2021-11-02 23:19:34,402 INFO L853 garLoopResultBuilder]: At program point L6886(lines 6882 6887) the Hoare annotation is: false [2021-11-02 23:19:34,402 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-11-02 23:19:34,402 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 223) no Hoare annotation was computed. [2021-11-02 23:19:34,402 INFO L853 garLoopResultBuilder]: At program point L8241(lines 8235 8242) the Hoare annotation is: false [2021-11-02 23:19:34,402 INFO L860 garLoopResultBuilder]: At program point L9546(line 9546) the Hoare annotation is: true [2021-11-02 23:19:34,403 INFO L853 garLoopResultBuilder]: At program point L266(line 266) the Hoare annotation is: (= 16 ULTIMATE.start_ensure_string_is_allocated_bounded_length_~max_size) [2021-11-02 23:19:34,403 INFO L853 garLoopResultBuilder]: At program point L266-1(line 266) the Hoare annotation is: false [2021-11-02 23:19:34,403 INFO L853 garLoopResultBuilder]: At program point L6245(lines 6242 6246) the Hoare annotation is: false [2021-11-02 23:19:34,406 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2021-11-02 23:19:34,407 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-02 23:19:34,418 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.11 11:19:34 BoogieIcfgContainer [2021-11-02 23:19:34,418 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-02 23:19:34,418 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-02 23:19:34,419 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-02 23:19:34,419 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-02 23:19:34,419 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 11:19:29" (3/4) ... [2021-11-02 23:19:34,422 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-02 23:19:34,450 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 134 nodes and edges [2021-11-02 23:19:34,452 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 55 nodes and edges [2021-11-02 23:19:34,454 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 26 nodes and edges [2021-11-02 23:19:34,456 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2021-11-02 23:19:34,458 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2021-11-02 23:19:34,460 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2021-11-02 23:19:34,462 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-11-02 23:19:34,463 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-02 23:19:35,333 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8d49b4b-9aef-43da-b6ca-def529ca9d19/bin/uautomizer-tBqnrhUYjU/witness.graphml [2021-11-02 23:19:35,333 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-02 23:19:35,335 INFO L168 Benchmark]: Toolchain (without parser) took 21811.04 ms. Allocated memory was 86.0 MB in the beginning and 287.3 MB in the end (delta: 201.3 MB). Free memory was 57.1 MB in the beginning and 116.9 MB in the end (delta: -59.8 MB). Peak memory consumption was 223.5 MB. Max. memory is 16.1 GB. [2021-11-02 23:19:35,335 INFO L168 Benchmark]: CDTParser took 0.34 ms. Allocated memory is still 86.0 MB. Free memory is still 64.5 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-02 23:19:35,336 INFO L168 Benchmark]: CACSL2BoogieTranslator took 3744.12 ms. Allocated memory was 86.0 MB in the beginning and 159.4 MB in the end (delta: 73.4 MB). Free memory was 56.9 MB in the beginning and 69.2 MB in the end (delta: -12.3 MB). Peak memory consumption was 63.6 MB. Max. memory is 16.1 GB. [2021-11-02 23:19:35,336 INFO L168 Benchmark]: Boogie Procedure Inliner took 284.27 ms. Allocated memory is still 159.4 MB. Free memory was 69.2 MB in the beginning and 95.9 MB in the end (delta: -26.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-02 23:19:35,336 INFO L168 Benchmark]: Boogie Preprocessor took 147.84 ms. Allocated memory is still 159.4 MB. Free memory was 95.9 MB in the beginning and 87.5 MB in the end (delta: 8.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-11-02 23:19:35,337 INFO L168 Benchmark]: RCFGBuilder took 12041.90 ms. Allocated memory was 159.4 MB in the beginning and 287.3 MB in the end (delta: 127.9 MB). Free memory was 87.5 MB in the beginning and 204.0 MB in the end (delta: -116.4 MB). Peak memory consumption was 161.5 MB. Max. memory is 16.1 GB. [2021-11-02 23:19:35,337 INFO L168 Benchmark]: TraceAbstraction took 4669.11 ms. Allocated memory is still 287.3 MB. Free memory was 204.0 MB in the beginning and 102.9 MB in the end (delta: 101.0 MB). Peak memory consumption was 101.0 MB. Max. memory is 16.1 GB. [2021-11-02 23:19:35,338 INFO L168 Benchmark]: Witness Printer took 914.82 ms. Allocated memory is still 287.3 MB. Free memory was 102.9 MB in the beginning and 116.9 MB in the end (delta: -13.9 MB). Peak memory consumption was 70.0 MB. Max. memory is 16.1 GB. [2021-11-02 23:19:35,340 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34 ms. Allocated memory is still 86.0 MB. Free memory is still 64.5 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 3744.12 ms. Allocated memory was 86.0 MB in the beginning and 159.4 MB in the end (delta: 73.4 MB). Free memory was 56.9 MB in the beginning and 69.2 MB in the end (delta: -12.3 MB). Peak memory consumption was 63.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 284.27 ms. Allocated memory is still 159.4 MB. Free memory was 69.2 MB in the beginning and 95.9 MB in the end (delta: -26.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 147.84 ms. Allocated memory is still 159.4 MB. Free memory was 95.9 MB in the beginning and 87.5 MB in the end (delta: 8.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * RCFGBuilder took 12041.90 ms. Allocated memory was 159.4 MB in the beginning and 287.3 MB in the end (delta: 127.9 MB). Free memory was 87.5 MB in the beginning and 204.0 MB in the end (delta: -116.4 MB). Peak memory consumption was 161.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 4669.11 ms. Allocated memory is still 287.3 MB. Free memory was 204.0 MB in the beginning and 102.9 MB in the end (delta: 101.0 MB). Peak memory consumption was 101.0 MB. Max. memory is 16.1 GB. * Witness Printer took 914.82 ms. Allocated memory is still 287.3 MB. Free memory was 102.9 MB in the beginning and 116.9 MB in the end (delta: -13.9 MB). Peak memory consumption was 70.0 MB. Max. memory is 16.1 GB. * 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 - PositiveResult [Line: 223]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 223]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 223]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 223]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 223]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - 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 1 procedures, 96 locations, 7 error locations. Started 1 CEGAR loops. OverallTime: 4.5s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 336 SDtfs, 95 SDslu, 460 SDs, 0 SdLazy, 97 SolverSat, 13 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 23 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=98occurred in iteration=3, InterpolantAutomatonStates: 17, 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, 4 MinimizatonAttempts, 31 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 16 LocationsWithAnnotation, 16 PreInvPairs, 17 NumberOfFragments, 18 HoareAnnotationTreeSize, 16 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 16 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 1.6s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 148 NumberOfCodeBlocks, 148 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 144 ConstructedInterpolants, 0 QuantifiedInterpolants, 207 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 7 specifications checked. All of them hold - InvariantResult [Line: 6806]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 6242]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 6882]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 6252]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 7368]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 6252]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 6800]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 9546]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 8235]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 266]: Loop Invariant Derived loop invariant: 16 == max_size - InvariantResult [Line: 9516]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 266]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 6889]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 7368]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 6252]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 261]: Loop Invariant Derived loop invariant: 0 RESULT: Ultimate proved your program to be correct! [2021-11-02 23:19:35,420 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8d49b4b-9aef-43da-b6ca-def529ca9d19/bin/uautomizer-tBqnrhUYjU/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