./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 63182f13 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad4b3fde-3934-4f25-bbc9-889c4044539b/bin/uautomizer-YU5uOKAj3y/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad4b3fde-3934-4f25-bbc9-889c4044539b/bin/uautomizer-YU5uOKAj3y/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad4b3fde-3934-4f25-bbc9-889c4044539b/bin/uautomizer-YU5uOKAj3y/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad4b3fde-3934-4f25-bbc9-889c4044539b/bin/uautomizer-YU5uOKAj3y/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_ad4b3fde-3934-4f25-bbc9-889c4044539b/bin/uautomizer-YU5uOKAj3y/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad4b3fde-3934-4f25-bbc9-889c4044539b/bin/uautomizer-YU5uOKAj3y --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 --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-13 18:13:37,531 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-13 18:13:37,533 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-13 18:13:37,585 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-13 18:13:37,586 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-13 18:13:37,591 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-13 18:13:37,593 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-13 18:13:37,597 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-13 18:13:37,600 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-13 18:13:37,607 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-13 18:13:37,608 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-13 18:13:37,611 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-13 18:13:37,611 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-13 18:13:37,614 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-13 18:13:37,617 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-13 18:13:37,622 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-13 18:13:37,624 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-13 18:13:37,625 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-13 18:13:37,628 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-13 18:13:37,636 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-13 18:13:37,638 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-13 18:13:37,640 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-13 18:13:37,643 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-13 18:13:37,644 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-13 18:13:37,654 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-13 18:13:37,654 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-13 18:13:37,655 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-13 18:13:37,657 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-13 18:13:37,658 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-13 18:13:37,660 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-13 18:13:37,660 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-13 18:13:37,661 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-13 18:13:37,664 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-13 18:13:37,665 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-13 18:13:37,667 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-13 18:13:37,667 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-13 18:13:37,668 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-13 18:13:37,668 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-13 18:13:37,669 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-13 18:13:37,670 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-13 18:13:37,671 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-13 18:13:37,672 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad4b3fde-3934-4f25-bbc9-889c4044539b/bin/uautomizer-YU5uOKAj3y/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-13 18:13:37,703 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-13 18:13:37,706 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-13 18:13:37,707 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-13 18:13:37,707 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-13 18:13:37,708 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-13 18:13:37,708 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-13 18:13:37,709 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-13 18:13:37,709 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-13 18:13:37,710 INFO L138 SettingsManager]: * Use SBE=true [2021-11-13 18:13:37,710 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-13 18:13:37,711 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-13 18:13:37,712 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-13 18:13:37,712 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-13 18:13:37,712 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-13 18:13:37,712 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-13 18:13:37,713 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-13 18:13:37,713 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-13 18:13:37,713 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-13 18:13:37,713 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-13 18:13:37,713 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-13 18:13:37,714 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-13 18:13:37,714 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 18:13:37,714 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-13 18:13:37,714 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-13 18:13:37,715 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-13 18:13:37,715 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-13 18:13:37,715 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-13 18:13:37,715 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-13 18:13:37,716 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-13 18:13:37,717 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-13 18:13:37,718 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-13 18:13:37,718 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_ad4b3fde-3934-4f25-bbc9-889c4044539b/bin/uautomizer-YU5uOKAj3y/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad4b3fde-3934-4f25-bbc9-889c4044539b/bin/uautomizer-YU5uOKAj3y Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> be41ee8ace02416f2e9952c11df8cb43e10a04c126211792ad12271f5624b8e0 [2021-11-13 18:13:38,065 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-13 18:13:38,094 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-13 18:13:38,097 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-13 18:13:38,098 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-13 18:13:38,099 INFO L275 PluginConnector]: CDTParser initialized [2021-11-13 18:13:38,101 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad4b3fde-3934-4f25-bbc9-889c4044539b/bin/uautomizer-YU5uOKAj3y/../../sv-benchmarks/c/aws-c-common/aws_string_bytes_harness.i [2021-11-13 18:13:38,190 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad4b3fde-3934-4f25-bbc9-889c4044539b/bin/uautomizer-YU5uOKAj3y/data/b0b57cb48/44da6724fad3445d946a5a20e54ed4f6/FLAG44e1bd3e0 [2021-11-13 18:13:39,111 INFO L306 CDTParser]: Found 1 translation units. [2021-11-13 18:13:39,112 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad4b3fde-3934-4f25-bbc9-889c4044539b/sv-benchmarks/c/aws-c-common/aws_string_bytes_harness.i [2021-11-13 18:13:39,178 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad4b3fde-3934-4f25-bbc9-889c4044539b/bin/uautomizer-YU5uOKAj3y/data/b0b57cb48/44da6724fad3445d946a5a20e54ed4f6/FLAG44e1bd3e0 [2021-11-13 18:13:39,622 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad4b3fde-3934-4f25-bbc9-889c4044539b/bin/uautomizer-YU5uOKAj3y/data/b0b57cb48/44da6724fad3445d946a5a20e54ed4f6 [2021-11-13 18:13:39,624 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-13 18:13:39,627 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-13 18:13:39,634 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-13 18:13:39,634 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-13 18:13:39,639 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-13 18:13:39,640 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 06:13:39" (1/1) ... [2021-11-13 18:13:39,641 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@43133e63 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:13:39, skipping insertion in model container [2021-11-13 18:13:39,641 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 06:13:39" (1/1) ... [2021-11-13 18:13:39,650 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-13 18:13:39,753 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 18:13:40,040 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_ad4b3fde-3934-4f25-bbc9-889c4044539b/sv-benchmarks/c/aws-c-common/aws_string_bytes_harness.i[4490,4503] [2021-11-13 18:13:40,046 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_ad4b3fde-3934-4f25-bbc9-889c4044539b/sv-benchmarks/c/aws-c-common/aws_string_bytes_harness.i[4550,4563] [2021-11-13 18:13:40,070 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-13 18:13:40,078 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-13 18:13:40,894 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 18:13:40,895 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 18:13:40,895 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 18:13:40,896 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 18:13:40,898 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 18:13:40,914 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 18:13:40,915 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 18:13:40,917 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 18:13:40,917 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 18:13:40,920 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 18:13:40,921 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 18:13:40,922 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 18:13:40,922 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 18:13:41,317 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-13 18:13:41,319 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-13 18:13:41,321 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-13 18:13:41,322 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-13 18:13:41,324 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-13 18:13:41,325 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-13 18:13:41,325 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-13 18:13:41,326 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-13 18:13:41,327 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-13 18:13:41,328 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-13 18:13:41,517 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-13 18:13:41,561 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 18:13:41,588 INFO L203 MainTranslator]: Completed pre-run [2021-11-13 18:13:41,606 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_ad4b3fde-3934-4f25-bbc9-889c4044539b/sv-benchmarks/c/aws-c-common/aws_string_bytes_harness.i[4490,4503] [2021-11-13 18:13:41,607 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_ad4b3fde-3934-4f25-bbc9-889c4044539b/sv-benchmarks/c/aws-c-common/aws_string_bytes_harness.i[4550,4563] [2021-11-13 18:13:41,609 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-13 18:13:41,610 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-13 18:13:41,690 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 18:13:41,691 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 18:13:41,692 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 18:13:41,693 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 18:13:41,694 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 18:13:41,712 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 18:13:41,720 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 18:13:41,726 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 18:13:41,728 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 18:13:41,729 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 18:13:41,731 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 18:13:41,731 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 18:13:41,732 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 18:13:41,800 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-13 18:13:41,804 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-13 18:13:41,805 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-13 18:13:41,810 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-13 18:13:41,811 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-13 18:13:41,813 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-13 18:13:41,814 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-13 18:13:41,815 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-13 18:13:41,816 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-13 18:13:41,816 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-13 18:13:41,859 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-13 18:13:41,873 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 18:13:42,160 INFO L208 MainTranslator]: Completed translation [2021-11-13 18:13:42,161 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:13:42 WrapperNode [2021-11-13 18:13:42,161 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-13 18:13:42,162 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-13 18:13:42,162 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-13 18:13:42,162 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-13 18:13:42,170 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:13:42" (1/1) ... [2021-11-13 18:13:42,267 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:13:42" (1/1) ... [2021-11-13 18:13:42,308 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-13 18:13:42,309 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-13 18:13:42,309 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-13 18:13:42,309 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-13 18:13:42,318 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:13:42" (1/1) ... [2021-11-13 18:13:42,319 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:13:42" (1/1) ... [2021-11-13 18:13:42,327 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:13:42" (1/1) ... [2021-11-13 18:13:42,328 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:13:42" (1/1) ... [2021-11-13 18:13:42,340 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:13:42" (1/1) ... [2021-11-13 18:13:42,342 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:13:42" (1/1) ... [2021-11-13 18:13:42,347 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:13:42" (1/1) ... [2021-11-13 18:13:42,352 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-13 18:13:42,353 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-13 18:13:42,353 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-13 18:13:42,353 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-13 18:13:42,354 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:13:42" (1/1) ... [2021-11-13 18:13:42,362 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 18:13:42,378 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad4b3fde-3934-4f25-bbc9-889c4044539b/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:13:42,390 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad4b3fde-3934-4f25-bbc9-889c4044539b/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-13 18:13:42,411 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad4b3fde-3934-4f25-bbc9-889c4044539b/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-13 18:13:42,447 INFO L130 BoogieDeclarations]: Found specification of procedure aws_string_is_valid [2021-11-13 18:13:42,447 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_string_is_valid [2021-11-13 18:13:42,448 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2021-11-13 18:13:42,448 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2021-11-13 18:13:42,449 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-13 18:13:42,449 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-13 18:13:42,450 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-13 18:13:42,450 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-13 18:13:42,450 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-13 18:13:42,450 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-13 18:13:42,450 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-13 18:13:42,451 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2021-11-13 18:13:42,451 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2021-11-13 18:13:42,451 INFO L130 BoogieDeclarations]: Found specification of procedure aws_string_bytes [2021-11-13 18:13:42,451 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_string_bytes [2021-11-13 18:13:42,452 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-11-13 18:13:42,452 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-11-13 18:13:42,452 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-13 18:13:42,452 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-13 18:13:42,453 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2021-11-13 18:13:42,453 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2021-11-13 18:13:42,453 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2021-11-13 18:13:42,453 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2021-11-13 18:13:42,453 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-13 18:13:42,453 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-13 18:13:43,034 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-13 18:13:43,041 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-13 18:13:43,043 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 06:13:43 BoogieIcfgContainer [2021-11-13 18:13:43,043 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-13 18:13:43,045 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-13 18:13:43,047 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-13 18:13:43,050 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-13 18:13:43,050 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 06:13:39" (1/3) ... [2021-11-13 18:13:43,051 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33564d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 06:13:43, skipping insertion in model container [2021-11-13 18:13:43,052 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:13:42" (2/3) ... [2021-11-13 18:13:43,052 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33564d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 06:13:43, skipping insertion in model container [2021-11-13 18:13:43,053 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 06:13:43" (3/3) ... [2021-11-13 18:13:43,054 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_string_bytes_harness.i [2021-11-13 18:13:43,060 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-13 18:13:43,061 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-13 18:13:43,129 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-13 18:13:43,137 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 [2021-11-13 18:13:43,141 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-13 18:13:43,193 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) [2021-11-13 18:13:43,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-11-13 18:13:43,202 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:13:43,203 INFO L514 BasicCegarLoop]: 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] [2021-11-13 18:13:43,204 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 18:13:43,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:13:43,211 INFO L85 PathProgramCache]: Analyzing trace with hash 26650354, now seen corresponding path program 1 times [2021-11-13 18:13:43,220 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:13:43,221 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1630310218] [2021-11-13 18:13:43,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:13:43,224 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:13:43,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:13:43,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-13 18:13:43,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:13:43,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-11-13 18:13:43,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:13:43,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-11-13 18:13:43,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:13:43,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:13:43,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:13:43,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-11-13 18:13:43,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:13:43,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-11-13 18:13:43,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:13:44,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:13:44,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:13:44,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-11-13 18:13:44,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:13:44,220 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-13 18:13:44,220 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:13:44,221 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1630310218] [2021-11-13 18:13:44,222 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1630310218] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:13:44,222 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:13:44,222 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2021-11-13 18:13:44,224 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1590604960] [2021-11-13 18:13:44,225 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:13:44,230 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-11-13 18:13:44,231 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:13:44,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-11-13 18:13:44,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=236, Unknown=0, NotChecked=0, Total=272 [2021-11-13 18:13:44,262 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 17 states, 15 states have (on average 2.1333333333333333) internal successors, (32), 15 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) [2021-11-13 18:13:45,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:13:45,055 INFO L93 Difference]: Finished difference Result 128 states and 154 transitions. [2021-11-13 18:13:45,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-11-13 18:13:45,057 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 15 states have (on average 2.1333333333333333) internal successors, (32), 15 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 [2021-11-13 18:13:45,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:13:45,067 INFO L225 Difference]: With dead ends: 128 [2021-11-13 18:13:45,067 INFO L226 Difference]: Without dead ends: 58 [2021-11-13 18:13:45,072 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=114, Invalid=642, Unknown=0, NotChecked=0, Total=756 [2021-11-13 18:13:45,076 INFO L933 BasicCegarLoop]: 53 mSDtfsCounter, 86 mSDsluCounter, 353 mSDsCounter, 0 mSdLazyCounter, 480 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 409.03ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 406 SdHoareTripleChecker+Invalid, 534 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 22.88ms SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 480 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 482.88ms IncrementalHoareTripleChecker+Time [2021-11-13 18:13:45,077 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [88 Valid, 406 Invalid, 534 Unknown, 0 Unchecked, 22.88ms Time], IncrementalHoareTripleChecker [54 Valid, 480 Invalid, 0 Unknown, 0 Unchecked, 482.88ms Time] [2021-11-13 18:13:45,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2021-11-13 18:13:45,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 58. [2021-11-13 18:13:45,133 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) [2021-11-13 18:13:45,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 62 transitions. [2021-11-13 18:13:45,136 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 62 transitions. Word has length 55 [2021-11-13 18:13:45,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:13:45,139 INFO L470 AbstractCegarLoop]: Abstraction has 58 states and 62 transitions. [2021-11-13 18:13:45,139 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 15 states have (on average 2.1333333333333333) internal successors, (32), 15 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) [2021-11-13 18:13:45,139 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 62 transitions. [2021-11-13 18:13:45,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-11-13 18:13:45,142 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:13:45,143 INFO L514 BasicCegarLoop]: 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] [2021-11-13 18:13:45,143 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-13 18:13:45,143 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 18:13:45,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:13:45,144 INFO L85 PathProgramCache]: Analyzing trace with hash 1047718708, now seen corresponding path program 1 times [2021-11-13 18:13:45,145 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:13:45,145 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2080065212] [2021-11-13 18:13:45,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:13:45,145 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:13:45,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:13:45,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-13 18:13:45,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:13:45,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-11-13 18:13:45,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:13:45,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-11-13 18:13:45,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:13:45,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:13:45,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:13:45,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-11-13 18:13:45,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:13:45,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-11-13 18:13:45,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:13:45,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:13:45,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:13:45,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-11-13 18:13:45,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:13:45,712 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-13 18:13:45,713 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:13:45,713 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2080065212] [2021-11-13 18:13:45,713 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2080065212] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:13:45,713 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:13:45,714 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-11-13 18:13:45,714 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [333173544] [2021-11-13 18:13:45,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:13:45,718 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-11-13 18:13:45,718 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:13:45,719 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-11-13 18:13:45,719 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=182, Unknown=0, NotChecked=0, Total=210 [2021-11-13 18:13:45,720 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) [2021-11-13 18:13:46,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:13:46,219 INFO L93 Difference]: Finished difference Result 64 states and 67 transitions. [2021-11-13 18:13:46,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-13 18:13:46,220 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 [2021-11-13 18:13:46,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:13:46,222 INFO L225 Difference]: With dead ends: 64 [2021-11-13 18:13:46,222 INFO L226 Difference]: Without dead ends: 60 [2021-11-13 18:13:46,223 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=88, Invalid=464, Unknown=0, NotChecked=0, Total=552 [2021-11-13 18:13:46,224 INFO L933 BasicCegarLoop]: 48 mSDtfsCounter, 51 mSDsluCounter, 290 mSDsCounter, 0 mSdLazyCounter, 381 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 272.58ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 338 SdHoareTripleChecker+Invalid, 410 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 7.06ms SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 381 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 322.59ms IncrementalHoareTripleChecker+Time [2021-11-13 18:13:46,224 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [53 Valid, 338 Invalid, 410 Unknown, 0 Unchecked, 7.06ms Time], IncrementalHoareTripleChecker [29 Valid, 381 Invalid, 0 Unknown, 0 Unchecked, 322.59ms Time] [2021-11-13 18:13:46,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2021-11-13 18:13:46,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60. [2021-11-13 18:13:46,238 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) [2021-11-13 18:13:46,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 63 transitions. [2021-11-13 18:13:46,245 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 63 transitions. Word has length 55 [2021-11-13 18:13:46,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:13:46,247 INFO L470 AbstractCegarLoop]: Abstraction has 60 states and 63 transitions. [2021-11-13 18:13:46,248 INFO L471 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) [2021-11-13 18:13:46,248 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 63 transitions. [2021-11-13 18:13:46,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-11-13 18:13:46,254 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:13:46,254 INFO L514 BasicCegarLoop]: 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] [2021-11-13 18:13:46,255 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-13 18:13:46,255 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 18:13:46,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:13:46,256 INFO L85 PathProgramCache]: Analyzing trace with hash -776855734, now seen corresponding path program 1 times [2021-11-13 18:13:46,256 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:13:46,256 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [306152293] [2021-11-13 18:13:46,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:13:46,257 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:13:46,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:13:46,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-13 18:13:46,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:13:46,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-11-13 18:13:46,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:13:46,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-11-13 18:13:46,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:13:46,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:13:46,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:13:46,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-11-13 18:13:46,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:13:46,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-11-13 18:13:46,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:13:46,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:13:46,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:13:46,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-11-13 18:13:46,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:13:46,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-11-13 18:13:46,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:13:46,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2021-11-13 18:13:46,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:13:46,860 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2021-11-13 18:13:46,860 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:13:46,860 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [306152293] [2021-11-13 18:13:46,860 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [306152293] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-13 18:13:46,861 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [699938311] [2021-11-13 18:13:46,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:13:46,861 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 18:13:46,861 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad4b3fde-3934-4f25-bbc9-889c4044539b/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:13:46,867 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad4b3fde-3934-4f25-bbc9-889c4044539b/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-13 18:13:46,874 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad4b3fde-3934-4f25-bbc9-889c4044539b/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-13 18:13:46,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:13:46,999 INFO L263 TraceCheckSpWp]: Trace formula consists of 264 conjuncts, 92 conjunts are in the unsatisfiable core [2021-11-13 18:13:47,008 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 18:13:47,284 INFO L354 Elim1Store]: treesize reduction 27, result has 41.3 percent of original size [2021-11-13 18:13:47,287 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 38 [2021-11-13 18:13:47,346 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 18:13:47,366 INFO L354 Elim1Store]: treesize reduction 23, result has 36.1 percent of original size [2021-11-13 18:13:47,366 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 32 [2021-11-13 18:13:57,186 INFO L354 Elim1Store]: treesize reduction 120, result has 21.6 percent of original size [2021-11-13 18:13:57,186 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 10 new quantified variables, introduced 15 case distinctions, treesize of input 340 treesize of output 216 [2021-11-13 18:13:58,257 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 15 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-13 18:13:58,257 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 18:14:04,886 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 7 proven. 7 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-11-13 18:14:04,887 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [699938311] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-13 18:14:04,887 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-13 18:14:04,887 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 30, 20] total 57 [2021-11-13 18:14:04,887 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [671882622] [2021-11-13 18:14:04,887 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-13 18:14:04,888 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 57 states [2021-11-13 18:14:04,888 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:14:04,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 57 interpolants. [2021-11-13 18:14:04,891 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=193, Invalid=2999, Unknown=0, NotChecked=0, Total=3192 [2021-11-13 18:14:04,892 INFO L87 Difference]: Start difference. First operand 60 states and 63 transitions. Second operand has 57 states, 47 states have (on average 2.25531914893617) internal successors, (106), 41 states have internal predecessors, (106), 16 states have call successors, (28), 7 states have call predecessors, (28), 14 states have return successors, (27), 17 states have call predecessors, (27), 14 states have call successors, (27) [2021-11-13 18:14:09,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:14:09,377 INFO L93 Difference]: Finished difference Result 64 states and 66 transitions. [2021-11-13 18:14:09,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-13 18:14:09,378 INFO L78 Accepts]: Start accepts. Automaton has has 57 states, 47 states have (on average 2.25531914893617) internal successors, (106), 41 states have internal predecessors, (106), 16 states have call successors, (28), 7 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 [2021-11-13 18:14:09,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:14:09,378 INFO L225 Difference]: With dead ends: 64 [2021-11-13 18:14:09,378 INFO L226 Difference]: Without dead ends: 0 [2021-11-13 18:14:09,388 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 170 GetRequests, 108 SyntacticMatches, 2 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 854 ImplicationChecksByTransitivity, 14.1s TimeCoverageRelationStatistics Valid=220, Invalid=3562, Unknown=0, NotChecked=0, Total=3782 [2021-11-13 18:14:09,389 INFO L933 BasicCegarLoop]: 14 mSDtfsCounter, 13 mSDsluCounter, 285 mSDsCounter, 0 mSdLazyCounter, 192 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 172.14ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 299 SdHoareTripleChecker+Invalid, 267 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.99ms SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 192 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 72 IncrementalHoareTripleChecker+Unchecked, 205.48ms IncrementalHoareTripleChecker+Time [2021-11-13 18:14:09,390 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13 Valid, 299 Invalid, 267 Unknown, 0 Unchecked, 2.99ms Time], IncrementalHoareTripleChecker [3 Valid, 192 Invalid, 0 Unknown, 72 Unchecked, 205.48ms Time] [2021-11-13 18:14:09,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-13 18:14:09,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-13 18:14:09,391 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) [2021-11-13 18:14:09,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-13 18:14:09,391 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 69 [2021-11-13 18:14:09,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:14:09,392 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-13 18:14:09,392 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 57 states, 47 states have (on average 2.25531914893617) internal successors, (106), 41 states have internal predecessors, (106), 16 states have call successors, (28), 7 states have call predecessors, (28), 14 states have return successors, (27), 17 states have call predecessors, (27), 14 states have call successors, (27) [2021-11-13 18:14:09,392 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-13 18:14:09,393 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-13 18:14:09,395 INFO L764 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-13 18:14:09,424 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad4b3fde-3934-4f25-bbc9-889c4044539b/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-13 18:14:09,598 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad4b3fde-3934-4f25-bbc9-889c4044539b/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 18:14:09,600 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-11-13 18:14:09,669 INFO L858 garLoopResultBuilder]: For program point L6927-1(lines 6927 6929) no Hoare annotation was computed. [2021-11-13 18:14:09,670 INFO L854 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|)) [2021-11-13 18:14:09,670 INFO L854 garLoopResultBuilder]: At program point bounded_mallocENTRY(lines 6926 6931) the Hoare annotation is: (and (= |old(#length)| |#length|) (= |old(#valid)| |#valid|)) [2021-11-13 18:14:09,670 INFO L858 garLoopResultBuilder]: For program point bounded_mallocFINAL(lines 6926 6931) no Hoare annotation was computed. [2021-11-13 18:14:09,670 INFO L858 garLoopResultBuilder]: For program point bounded_mallocEXIT(lines 6926 6931) no Hoare annotation was computed. [2021-11-13 18:14:09,671 INFO L858 garLoopResultBuilder]: For program point nondet_boolFINAL(line 261) no Hoare annotation was computed. [2021-11-13 18:14:09,671 INFO L858 garLoopResultBuilder]: For program point nondet_boolEXIT(line 261) no Hoare annotation was computed. [2021-11-13 18:14:09,671 INFO L861 garLoopResultBuilder]: At program point nondet_boolENTRY(line 261) the Hoare annotation is: true [2021-11-13 18:14:09,671 INFO L861 garLoopResultBuilder]: At program point aws_string_bytesENTRY(lines 6292 6296) the Hoare annotation is: true [2021-11-13 18:14:09,671 INFO L858 garLoopResultBuilder]: For program point aws_string_bytesEXIT(lines 6292 6296) no Hoare annotation was computed. [2021-11-13 18:14:09,672 INFO L861 garLoopResultBuilder]: At program point L6294(line 6294) the Hoare annotation is: true [2021-11-13 18:14:09,672 INFO L858 garLoopResultBuilder]: For program point aws_string_bytesFINAL(lines 6292 6296) no Hoare annotation was computed. [2021-11-13 18:14:09,672 INFO L861 garLoopResultBuilder]: At program point L6294-1(line 6294) the Hoare annotation is: true [2021-11-13 18:14:09,672 INFO L858 garLoopResultBuilder]: For program point L6294-2(line 6294) no Hoare annotation was computed. [2021-11-13 18:14:09,672 INFO L858 garLoopResultBuilder]: For program point L211-2(lines 210 212) no Hoare annotation was computed. [2021-11-13 18:14:09,672 INFO L861 garLoopResultBuilder]: At program point assume_abort_if_notENTRY(lines 210 212) the Hoare annotation is: true [2021-11-13 18:14:09,673 INFO L858 garLoopResultBuilder]: For program point L211(line 211) no Hoare annotation was computed. [2021-11-13 18:14:09,673 INFO L858 garLoopResultBuilder]: For program point assume_abort_if_notEXIT(lines 210 212) no Hoare annotation was computed. [2021-11-13 18:14:09,673 INFO L858 garLoopResultBuilder]: For program point can_fail_allocatorFINAL(lines 6933 6935) no Hoare annotation was computed. [2021-11-13 18:14:09,673 INFO L858 garLoopResultBuilder]: For program point can_fail_allocatorEXIT(lines 6933 6935) no Hoare annotation was computed. [2021-11-13 18:14:09,673 INFO L861 garLoopResultBuilder]: At program point can_fail_allocatorENTRY(lines 6933 6935) the Hoare annotation is: true [2021-11-13 18:14:09,674 INFO L858 garLoopResultBuilder]: For program point L6306-3(line 6306) no Hoare annotation was computed. [2021-11-13 18:14:09,674 INFO L858 garLoopResultBuilder]: For program point L6306-2(line 6306) no Hoare annotation was computed. [2021-11-13 18:14:09,674 INFO L861 garLoopResultBuilder]: At program point aws_string_is_validENTRY(lines 6302 6307) the Hoare annotation is: true [2021-11-13 18:14:09,674 INFO L858 garLoopResultBuilder]: For program point L6306-5(line 6306) no Hoare annotation was computed. [2021-11-13 18:14:09,674 INFO L858 garLoopResultBuilder]: For program point aws_string_is_validFINAL(lines 6302 6307) no Hoare annotation was computed. [2021-11-13 18:14:09,674 INFO L858 garLoopResultBuilder]: For program point aws_string_is_validEXIT(lines 6302 6307) no Hoare annotation was computed. [2021-11-13 18:14:09,675 INFO L858 garLoopResultBuilder]: For program point L6306(line 6306) no Hoare annotation was computed. [2021-11-13 18:14:09,675 INFO L858 garLoopResultBuilder]: For program point nondet_uint64_tEXIT(line 266) no Hoare annotation was computed. [2021-11-13 18:14:09,675 INFO L861 garLoopResultBuilder]: At program point nondet_uint64_tENTRY(line 266) the Hoare annotation is: true [2021-11-13 18:14:09,675 INFO L858 garLoopResultBuilder]: For program point nondet_uint64_tFINAL(line 266) no Hoare annotation was computed. [2021-11-13 18:14:09,675 INFO L854 garLoopResultBuilder]: At program point L6846(line 6846) the Hoare annotation is: (and (<= |ULTIMATE.start_ensure_string_is_allocated_bounded_length_~max_size#1| 18446744073710786165) (< 0 (div |ULTIMATE.start_ensure_string_is_allocated_bounded_length_~max_size#1| 18446744073709551616))) [2021-11-13 18:14:09,675 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-11-13 18:14:09,676 INFO L858 garLoopResultBuilder]: For program point L6854-5(lines 6854 6855) no Hoare annotation was computed. [2021-11-13 18:14:09,676 INFO L858 garLoopResultBuilder]: For program point L7261-2(line 7261) no Hoare annotation was computed. [2021-11-13 18:14:09,676 INFO L858 garLoopResultBuilder]: For program point L7259(lines 7259 7263) no Hoare annotation was computed. [2021-11-13 18:14:09,676 INFO L854 garLoopResultBuilder]: At program point L7261-1(line 7261) the Hoare annotation is: false [2021-11-13 18:14:09,676 INFO L858 garLoopResultBuilder]: For program point L6846-1(line 6846) no Hoare annotation was computed. [2021-11-13 18:14:09,677 INFO L854 garLoopResultBuilder]: At program point L7261(line 7261) the Hoare annotation is: false [2021-11-13 18:14:09,677 INFO L854 garLoopResultBuilder]: At program point L6859(lines 6850 6860) the Hoare annotation is: false [2021-11-13 18:14:09,677 INFO L858 garLoopResultBuilder]: For program point L6851-1(line 6851) no Hoare annotation was computed. [2021-11-13 18:14:09,677 INFO L854 garLoopResultBuilder]: At program point L6851(line 6851) the Hoare annotation is: (and (<= 18446744073709551616 (+ (* 18446744073709551616 (div (+ (* |ULTIMATE.start_ensure_string_is_allocated_~len#1| (- 1)) 18446744073710786164) 18446744073709551616)) |ULTIMATE.start_ensure_string_is_allocated_~len#1|)) (let ((.cse0 (div |ULTIMATE.start_ensure_string_is_allocated_bounded_length_~len~1#1| 18446744073709551616))) (<= (+ (* 18446744073709551616 .cse0) 18446744073709551616) (+ |ULTIMATE.start_ensure_string_is_allocated_bounded_length_~len~1#1| (* 18446744073709551616 (div (+ (* |ULTIMATE.start_ensure_string_is_allocated_bounded_length_~len~1#1| (- 1)) 18446744073710786164 (* .cse0 18446744073709551616)) 18446744073709551616)))))) [2021-11-13 18:14:09,677 INFO L854 garLoopResultBuilder]: At program point L7262(line 7262) the Hoare annotation is: false [2021-11-13 18:14:09,678 INFO L854 garLoopResultBuilder]: At program point L6847(lines 6844 6848) the Hoare annotation is: false [2021-11-13 18:14:09,678 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-11-13 18:14:09,678 INFO L854 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))) [2021-11-13 18:14:09,678 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-11-13 18:14:09,678 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-11-13 18:14:09,678 INFO L858 garLoopResultBuilder]: For program point L6845-1(line 6845) no Hoare annotation was computed. [2021-11-13 18:14:09,679 INFO L858 garLoopResultBuilder]: For program point L7262-2(line 7262) no Hoare annotation was computed. [2021-11-13 18:14:09,679 INFO L854 garLoopResultBuilder]: At program point L6845(line 6845) the Hoare annotation is: (and (<= |ULTIMATE.start_ensure_string_is_allocated_bounded_length_~max_size#1| 18446744073710786165) (< 0 (div |ULTIMATE.start_ensure_string_is_allocated_bounded_length_~max_size#1| 18446744073709551616))) [2021-11-13 18:14:09,679 INFO L854 garLoopResultBuilder]: At program point L7262-1(line 7262) the Hoare annotation is: false [2021-11-13 18:14:09,679 INFO L854 garLoopResultBuilder]: At program point L6839(lines 6837 6842) the Hoare annotation is: false [2021-11-13 18:14:09,679 INFO L854 garLoopResultBuilder]: At program point L6854(line 6854) the Hoare annotation is: false [2021-11-13 18:14:09,680 INFO L858 garLoopResultBuilder]: For program point L6854-3(line 6854) no Hoare annotation was computed. [2021-11-13 18:14:09,680 INFO L854 garLoopResultBuilder]: At program point L6854-2(line 6854) the Hoare annotation is: false [2021-11-13 18:14:09,680 INFO L858 garLoopResultBuilder]: For program point L6854-1(lines 6854 6855) no Hoare annotation was computed. [2021-11-13 18:14:09,680 INFO L858 garLoopResultBuilder]: For program point L223(line 223) no Hoare annotation was computed. [2021-11-13 18:14:09,680 INFO L861 garLoopResultBuilder]: At program point __VERIFIER_assertENTRY(lines 222 224) the Hoare annotation is: true [2021-11-13 18:14:09,680 INFO L858 garLoopResultBuilder]: For program point L223-1(line 223) no Hoare annotation was computed. [2021-11-13 18:14:09,681 INFO L858 garLoopResultBuilder]: For program point L223-3(lines 222 224) no Hoare annotation was computed. [2021-11-13 18:14:09,681 INFO L858 garLoopResultBuilder]: For program point __VERIFIER_assertEXIT(lines 222 224) no Hoare annotation was computed. [2021-11-13 18:14:09,681 INFO L858 garLoopResultBuilder]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 223) no Hoare annotation was computed. [2021-11-13 18:14:09,685 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2021-11-13 18:14:09,686 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-13 18:14:09,701 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.11 06:14:09 BoogieIcfgContainer [2021-11-13 18:14:09,702 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-13 18:14:09,702 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-13 18:14:09,702 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-13 18:14:09,703 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-13 18:14:09,703 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 06:13:43" (3/4) ... [2021-11-13 18:14:09,706 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-13 18:14:09,712 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure bounded_malloc [2021-11-13 18:14:09,713 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure nondet_uint64_t [2021-11-13 18:14:09,713 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure nondet_bool [2021-11-13 18:14:09,713 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure aws_string_bytes [2021-11-13 18:14:09,714 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2021-11-13 18:14:09,714 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2021-11-13 18:14:09,714 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure can_fail_allocator [2021-11-13 18:14:09,714 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure aws_string_is_valid [2021-11-13 18:14:09,719 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 22 nodes and edges [2021-11-13 18:14:09,720 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-11-13 18:14:09,720 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-13 18:14:09,721 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-13 18:14:09,745 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(\result == 0) && !(str == 0)) && !(str == 0)) && !(\result == 0)) && !(\result == 0) [2021-11-13 18:14:09,765 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad4b3fde-3934-4f25-bbc9-889c4044539b/bin/uautomizer-YU5uOKAj3y/witness.graphml [2021-11-13 18:14:09,765 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-13 18:14:09,766 INFO L158 Benchmark]: Toolchain (without parser) took 30139.52ms. Allocated memory was 98.6MB in the beginning and 262.1MB in the end (delta: 163.6MB). Free memory was 74.5MB in the beginning and 173.9MB in the end (delta: -99.4MB). Peak memory consumption was 63.9MB. Max. memory is 16.1GB. [2021-11-13 18:14:09,766 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 98.6MB. Free memory is still 74.4MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-13 18:14:09,767 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2527.27ms. Allocated memory was 98.6MB in the beginning and 119.5MB in the end (delta: 21.0MB). Free memory was 74.2MB in the beginning and 75.8MB in the end (delta: -1.6MB). Peak memory consumption was 62.3MB. Max. memory is 16.1GB. [2021-11-13 18:14:09,767 INFO L158 Benchmark]: Boogie Procedure Inliner took 146.44ms. Allocated memory is still 119.5MB. Free memory was 75.8MB in the beginning and 70.9MB in the end (delta: 4.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-13 18:14:09,768 INFO L158 Benchmark]: Boogie Preprocessor took 43.04ms. Allocated memory is still 119.5MB. Free memory was 70.9MB in the beginning and 68.0MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-13 18:14:09,768 INFO L158 Benchmark]: RCFGBuilder took 690.75ms. Allocated memory is still 119.5MB. Free memory was 68.0MB in the beginning and 50.6MB in the end (delta: 17.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2021-11-13 18:14:09,769 INFO L158 Benchmark]: TraceAbstraction took 26656.75ms. Allocated memory was 119.5MB in the beginning and 262.1MB in the end (delta: 142.6MB). Free memory was 50.0MB in the beginning and 179.1MB in the end (delta: -129.1MB). Peak memory consumption was 14.2MB. Max. memory is 16.1GB. [2021-11-13 18:14:09,769 INFO L158 Benchmark]: Witness Printer took 63.22ms. Allocated memory is still 262.1MB. Free memory was 179.1MB in the beginning and 173.9MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-13 18:14:09,771 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 98.6MB. Free memory is still 74.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2527.27ms. Allocated memory was 98.6MB in the beginning and 119.5MB in the end (delta: 21.0MB). Free memory was 74.2MB in the beginning and 75.8MB in the end (delta: -1.6MB). Peak memory consumption was 62.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 146.44ms. Allocated memory is still 119.5MB. Free memory was 75.8MB in the beginning and 70.9MB in the end (delta: 4.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 43.04ms. Allocated memory is still 119.5MB. Free memory was 70.9MB in the beginning and 68.0MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 690.75ms. Allocated memory is still 119.5MB. Free memory was 68.0MB in the beginning and 50.6MB in the end (delta: 17.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 26656.75ms. Allocated memory was 119.5MB in the beginning and 262.1MB in the end (delta: 142.6MB). Free memory was 50.0MB in the beginning and 179.1MB in the end (delta: -129.1MB). Peak memory consumption was 14.2MB. Max. memory is 16.1GB. * Witness Printer took 63.22ms. Allocated memory is still 262.1MB. Free memory was 179.1MB in the beginning and 173.9MB in the end (delta: 5.2MB). 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: 26.6s, OverallIterations: 3, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 5.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 154 SdHoareTripleChecker+Valid, 1010.95ms IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 150 mSDsluCounter, 1043 SdHoareTripleChecker+Invalid, 853.76ms Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 72 IncrementalHoareTripleChecker+Unchecked, 928 mSDsCounter, 86 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1053 IncrementalHoareTripleChecker+Invalid, 1211 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 86 mSolverCounterUnsat, 115 mSDtfsCounter, 1053 mSolverCounterSat, 32.94ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 249 GetRequests, 139 SyntacticMatches, 2 SemanticMatches, 108 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 954 ImplicationChecksByTransitivity, 14.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=63occurred in iteration=0, InterpolantAutomatonStates: 43, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 24 LocationsWithAnnotation, 42 PreInvPairs, 45 NumberOfFragments, 112 HoareAnnotationTreeSize, 42 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 24 FomulaSimplificationsInter, 12 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 19.6s InterpolantComputationTime, 248 NumberOfCodeBlocks, 248 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 312 ConstructedInterpolants, 34 QuantifiedInterpolants, 7548 SizeOfPredicates, 30 NumberOfNonLiveVariables, 264 ConjunctsInSsa, 92 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! [2021-11-13 18:14:09,806 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad4b3fde-3934-4f25-bbc9-889c4044539b/bin/uautomizer-YU5uOKAj3y/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