./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_string_destroy_secure_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55fc8f04-1c65-4098-a86e-37a76e94ffdf/bin/uautomizer-GMMbpWq8iD/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55fc8f04-1c65-4098-a86e-37a76e94ffdf/bin/uautomizer-GMMbpWq8iD/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55fc8f04-1c65-4098-a86e-37a76e94ffdf/bin/uautomizer-GMMbpWq8iD/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55fc8f04-1c65-4098-a86e-37a76e94ffdf/bin/uautomizer-GMMbpWq8iD/config/AutomizerReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_string_destroy_secure_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55fc8f04-1c65-4098-a86e-37a76e94ffdf/bin/uautomizer-GMMbpWq8iD/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55fc8f04-1c65-4098-a86e-37a76e94ffdf/bin/uautomizer-GMMbpWq8iD --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 bc5ed5fb850d9a2c9d9a14514ffc7939afe81a277edfb59aefd3c5f66024eda8 ..................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-28 23:17:50,651 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 23:17:50,654 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 23:17:50,695 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 23:17:50,696 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 23:17:50,698 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 23:17:50,701 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 23:17:50,704 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 23:17:50,707 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 23:17:50,709 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 23:17:50,710 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 23:17:50,713 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 23:17:50,713 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 23:17:50,715 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 23:17:50,718 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 23:17:50,719 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 23:17:50,721 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 23:17:50,722 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 23:17:50,725 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 23:17:50,734 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 23:17:50,736 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 23:17:50,742 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 23:17:50,744 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 23:17:50,747 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 23:17:50,756 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 23:17:50,758 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 23:17:50,758 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 23:17:50,765 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 23:17:50,769 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 23:17:50,771 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 23:17:50,773 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 23:17:50,774 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 23:17:50,776 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 23:17:50,778 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 23:17:50,780 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 23:17:50,781 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 23:17:50,783 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 23:17:50,783 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 23:17:50,783 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 23:17:50,785 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 23:17:50,786 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 23:17:50,787 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55fc8f04-1c65-4098-a86e-37a76e94ffdf/bin/uautomizer-GMMbpWq8iD/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-10-28 23:17:50,840 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 23:17:50,842 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 23:17:50,843 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 23:17:50,844 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 23:17:50,857 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 23:17:50,857 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 23:17:50,858 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 23:17:50,858 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 23:17:50,858 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 23:17:50,858 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 23:17:50,860 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-28 23:17:50,860 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-28 23:17:50,860 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-28 23:17:50,861 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 23:17:50,861 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 23:17:50,861 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-28 23:17:50,862 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 23:17:50,862 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 23:17:50,862 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-28 23:17:50,862 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 23:17:50,863 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 23:17:50,863 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-28 23:17:50,863 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-28 23:17:50,864 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 23:17:50,864 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-28 23:17:50,864 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-28 23:17:50,864 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-10-28 23:17:50,865 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-28 23:17:50,865 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 23:17:50,867 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_55fc8f04-1c65-4098-a86e-37a76e94ffdf/bin/uautomizer-GMMbpWq8iD/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55fc8f04-1c65-4098-a86e-37a76e94ffdf/bin/uautomizer-GMMbpWq8iD Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bc5ed5fb850d9a2c9d9a14514ffc7939afe81a277edfb59aefd3c5f66024eda8 [2021-10-28 23:17:51,156 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 23:17:51,180 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 23:17:51,183 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 23:17:51,184 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 23:17:51,186 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 23:17:51,187 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55fc8f04-1c65-4098-a86e-37a76e94ffdf/bin/uautomizer-GMMbpWq8iD/../../sv-benchmarks/c/aws-c-common/aws_string_destroy_secure_harness.i [2021-10-28 23:17:51,296 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55fc8f04-1c65-4098-a86e-37a76e94ffdf/bin/uautomizer-GMMbpWq8iD/data/8fbba17b2/99489969eb3b465db950f34e1ddc0b40/FLAG52eff21b7 [2021-10-28 23:17:52,246 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 23:17:52,251 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55fc8f04-1c65-4098-a86e-37a76e94ffdf/sv-benchmarks/c/aws-c-common/aws_string_destroy_secure_harness.i [2021-10-28 23:17:52,300 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55fc8f04-1c65-4098-a86e-37a76e94ffdf/bin/uautomizer-GMMbpWq8iD/data/8fbba17b2/99489969eb3b465db950f34e1ddc0b40/FLAG52eff21b7 [2021-10-28 23:17:52,666 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55fc8f04-1c65-4098-a86e-37a76e94ffdf/bin/uautomizer-GMMbpWq8iD/data/8fbba17b2/99489969eb3b465db950f34e1ddc0b40 [2021-10-28 23:17:52,668 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 23:17:52,670 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 23:17:52,682 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 23:17:52,682 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 23:17:52,686 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 23:17:52,688 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:17:52" (1/1) ... [2021-10-28 23:17:52,690 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@32f5a110 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:17:52, skipping insertion in model container [2021-10-28 23:17:52,690 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:17:52" (1/1) ... [2021-10-28 23:17:52,698 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 23:17:52,861 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 23:17:53,170 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_55fc8f04-1c65-4098-a86e-37a76e94ffdf/sv-benchmarks/c/aws-c-common/aws_string_destroy_secure_harness.i[4499,4512] [2021-10-28 23:17:53,178 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_55fc8f04-1c65-4098-a86e-37a76e94ffdf/sv-benchmarks/c/aws-c-common/aws_string_destroy_secure_harness.i[4559,4572] [2021-10-28 23:17:53,208 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-10-28 23:17:53,215 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-10-28 23:17:54,832 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 23:17:54,843 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 23:17:54,845 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 23:17:54,846 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 23:17:54,847 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 23:17:54,871 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 23:17:54,872 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 23:17:54,879 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 23:17:54,880 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 23:17:55,558 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-10-28 23:17:55,560 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-10-28 23:17:55,562 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-10-28 23:17:55,563 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-10-28 23:17:55,565 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-10-28 23:17:55,566 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-10-28 23:17:55,568 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-10-28 23:17:55,569 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-10-28 23:17:55,570 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-10-28 23:17:55,571 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-10-28 23:17:55,835 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-10-28 23:17:55,995 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 23:17:55,996 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 23:17:56,110 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:17:56,266 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 23:17:56,297 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_55fc8f04-1c65-4098-a86e-37a76e94ffdf/sv-benchmarks/c/aws-c-common/aws_string_destroy_secure_harness.i[4499,4512] [2021-10-28 23:17:56,308 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_55fc8f04-1c65-4098-a86e-37a76e94ffdf/sv-benchmarks/c/aws-c-common/aws_string_destroy_secure_harness.i[4559,4572] [2021-10-28 23:17:56,311 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-10-28 23:17:56,312 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-10-28 23:17:56,380 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 23:17:56,384 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 23:17:56,385 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 23:17:56,387 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 23:17:56,390 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 23:17:56,400 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 23:17:56,400 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 23:17:56,402 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 23:17:56,402 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 23:17:56,483 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-10-28 23:17:56,485 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-10-28 23:17:56,486 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-10-28 23:17:56,487 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-10-28 23:17:56,489 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-10-28 23:17:56,490 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-10-28 23:17:56,491 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-10-28 23:17:56,491 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-10-28 23:17:56,492 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-10-28 23:17:56,493 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-10-28 23:17:56,532 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-10-28 23:17:56,616 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 23:17:56,616 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 23:17:56,665 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:17:57,125 INFO L208 MainTranslator]: Completed translation [2021-10-28 23:17:57,125 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:17:57 WrapperNode [2021-10-28 23:17:57,126 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 23:17:57,127 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 23:17:57,127 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 23:17:57,128 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 23:17:57,137 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:17:57" (1/1) ... [2021-10-28 23:17:57,381 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:17:57" (1/1) ... [2021-10-28 23:17:57,530 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 23:17:57,531 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 23:17:57,531 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 23:17:57,534 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 23:17:57,548 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:17:57" (1/1) ... [2021-10-28 23:17:57,548 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:17:57" (1/1) ... [2021-10-28 23:17:57,573 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:17:57" (1/1) ... [2021-10-28 23:17:57,574 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:17:57" (1/1) ... [2021-10-28 23:17:57,657 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:17:57" (1/1) ... [2021-10-28 23:17:57,672 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:17:57" (1/1) ... [2021-10-28 23:17:57,690 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:17:57" (1/1) ... [2021-10-28 23:17:57,732 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 23:17:57,741 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 23:17:57,741 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 23:17:57,741 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 23:17:57,743 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:17:57" (1/1) ... [2021-10-28 23:17:57,755 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 23:17:57,773 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55fc8f04-1c65-4098-a86e-37a76e94ffdf/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:17:57,794 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55fc8f04-1c65-4098-a86e-37a76e94ffdf/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-28 23:17:57,817 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55fc8f04-1c65-4098-a86e-37a76e94ffdf/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-28 23:17:57,864 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-28 23:17:57,864 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-28 23:17:57,864 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-28 23:17:57,864 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-10-28 23:17:57,865 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 23:17:57,865 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 23:17:57,866 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-10-28 23:17:57,866 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 23:17:57,866 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-10-28 23:17:57,867 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-10-28 23:17:57,868 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-28 23:17:57,869 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-28 23:18:09,655 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 23:18:09,655 INFO L299 CfgBuilder]: Removed 56 assume(true) statements. [2021-10-28 23:18:09,659 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:18:09 BoogieIcfgContainer [2021-10-28 23:18:09,659 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 23:18:09,661 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-28 23:18:09,661 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-28 23:18:09,665 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-28 23:18:09,666 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 11:17:52" (1/3) ... [2021-10-28 23:18:09,667 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e6e380 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 11:18:09, skipping insertion in model container [2021-10-28 23:18:09,667 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:17:57" (2/3) ... [2021-10-28 23:18:09,668 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e6e380 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 11:18:09, skipping insertion in model container [2021-10-28 23:18:09,668 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:18:09" (3/3) ... [2021-10-28 23:18:09,670 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_string_destroy_secure_harness.i [2021-10-28 23:18:09,676 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-28 23:18:09,677 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-28 23:18:09,751 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-28 23:18:09,766 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 [2021-10-28 23:18:09,766 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-28 23:18:09,785 INFO L276 IsEmpty]: Start isEmpty. Operand has 59 states, 57 states have (on average 1.3859649122807018) internal successors, (79), 58 states have internal predecessors, (79), 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) [2021-10-28 23:18:09,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-10-28 23:18:09,793 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:18:09,794 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] [2021-10-28 23:18:09,794 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 23:18:09,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:18:09,801 INFO L85 PathProgramCache]: Analyzing trace with hash 254888643, now seen corresponding path program 1 times [2021-10-28 23:18:09,812 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:18:09,813 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1658470083] [2021-10-28 23:18:09,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:18:09,814 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:18:10,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:18:10,754 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:18:10,755 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:18:10,755 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1658470083] [2021-10-28 23:18:10,756 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1658470083] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:18:10,756 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:18:10,757 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-28 23:18:10,759 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1858128811] [2021-10-28 23:18:10,764 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-28 23:18:10,764 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:18:10,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-28 23:18:10,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-28 23:18:10,781 INFO L87 Difference]: Start difference. First operand has 59 states, 57 states have (on average 1.3859649122807018) internal successors, (79), 58 states have internal predecessors, (79), 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 14.5) internal successors, (29), 2 states have internal predecessors, (29), 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) [2021-10-28 23:18:10,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:18:10,799 INFO L93 Difference]: Finished difference Result 114 states and 153 transitions. [2021-10-28 23:18:10,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-28 23:18:10,801 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 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 29 [2021-10-28 23:18:10,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:18:10,815 INFO L225 Difference]: With dead ends: 114 [2021-10-28 23:18:10,818 INFO L226 Difference]: Without dead ends: 54 [2021-10-28 23:18:10,821 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 [2021-10-28 23:18:10,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2021-10-28 23:18:10,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2021-10-28 23:18:10,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 53 states have (on average 1.2075471698113207) internal successors, (64), 53 states have internal predecessors, (64), 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) [2021-10-28 23:18:10,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 64 transitions. [2021-10-28 23:18:10,863 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 64 transitions. Word has length 29 [2021-10-28 23:18:10,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:18:10,864 INFO L470 AbstractCegarLoop]: Abstraction has 54 states and 64 transitions. [2021-10-28 23:18:10,865 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 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) [2021-10-28 23:18:10,865 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 64 transitions. [2021-10-28 23:18:10,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-10-28 23:18:10,867 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:18:10,867 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] [2021-10-28 23:18:10,867 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-28 23:18:10,868 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 23:18:10,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:18:10,869 INFO L85 PathProgramCache]: Analyzing trace with hash 1018052417, now seen corresponding path program 1 times [2021-10-28 23:18:10,869 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:18:10,870 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [991334667] [2021-10-28 23:18:10,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:18:10,870 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:18:11,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:18:11,512 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:18:11,512 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:18:11,513 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [991334667] [2021-10-28 23:18:11,513 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [991334667] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:18:11,513 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:18:11,513 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-10-28 23:18:11,513 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2104051793] [2021-10-28 23:18:11,515 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-28 23:18:11,515 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:18:11,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-28 23:18:11,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-10-28 23:18:11,517 INFO L87 Difference]: Start difference. First operand 54 states and 64 transitions. Second operand has 9 states, 9 states have (on average 3.2222222222222223) internal successors, (29), 9 states have internal predecessors, (29), 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) [2021-10-28 23:18:12,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:18:12,093 INFO L93 Difference]: Finished difference Result 101 states and 118 transitions. [2021-10-28 23:18:12,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-28 23:18:12,093 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.2222222222222223) internal successors, (29), 9 states have internal predecessors, (29), 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 29 [2021-10-28 23:18:12,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:18:12,096 INFO L225 Difference]: With dead ends: 101 [2021-10-28 23:18:12,096 INFO L226 Difference]: Without dead ends: 92 [2021-10-28 23:18:12,098 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=82, Invalid=158, Unknown=0, NotChecked=0, Total=240 [2021-10-28 23:18:12,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2021-10-28 23:18:12,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 65. [2021-10-28 23:18:12,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65 states, 64 states have (on average 1.21875) internal successors, (78), 64 states have internal predecessors, (78), 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) [2021-10-28 23:18:12,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 78 transitions. [2021-10-28 23:18:12,124 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 78 transitions. Word has length 29 [2021-10-28 23:18:12,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:18:12,125 INFO L470 AbstractCegarLoop]: Abstraction has 65 states and 78 transitions. [2021-10-28 23:18:12,125 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.2222222222222223) internal successors, (29), 9 states have internal predecessors, (29), 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) [2021-10-28 23:18:12,140 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 78 transitions. [2021-10-28 23:18:12,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-10-28 23:18:12,142 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:18:12,142 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] [2021-10-28 23:18:12,142 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-28 23:18:12,142 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 23:18:12,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:18:12,143 INFO L85 PathProgramCache]: Analyzing trace with hash -261811261, now seen corresponding path program 1 times [2021-10-28 23:18:12,144 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:18:12,144 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1707520150] [2021-10-28 23:18:12,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:18:12,145 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:18:12,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:18:12,562 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:18:12,563 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:18:12,563 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1707520150] [2021-10-28 23:18:12,563 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1707520150] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:18:12,563 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:18:12,564 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 23:18:12,564 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [278208356] [2021-10-28 23:18:12,565 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 23:18:12,565 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:18:12,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 23:18:12,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 23:18:12,569 INFO L87 Difference]: Start difference. First operand 65 states and 78 transitions. Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 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) [2021-10-28 23:18:12,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:18:12,623 INFO L93 Difference]: Finished difference Result 92 states and 109 transitions. [2021-10-28 23:18:12,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 23:18:12,624 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 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 29 [2021-10-28 23:18:12,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:18:12,627 INFO L225 Difference]: With dead ends: 92 [2021-10-28 23:18:12,627 INFO L226 Difference]: Without dead ends: 54 [2021-10-28 23:18:12,628 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 [2021-10-28 23:18:12,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2021-10-28 23:18:12,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2021-10-28 23:18:12,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 53 states have (on average 1.169811320754717) internal successors, (62), 53 states have internal predecessors, (62), 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) [2021-10-28 23:18:12,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 62 transitions. [2021-10-28 23:18:12,641 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 62 transitions. Word has length 29 [2021-10-28 23:18:12,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:18:12,642 INFO L470 AbstractCegarLoop]: Abstraction has 54 states and 62 transitions. [2021-10-28 23:18:12,642 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 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) [2021-10-28 23:18:12,642 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 62 transitions. [2021-10-28 23:18:12,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-10-28 23:18:12,649 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:18:12,650 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] [2021-10-28 23:18:12,650 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-28 23:18:12,651 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 23:18:12,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:18:12,652 INFO L85 PathProgramCache]: Analyzing trace with hash -262226708, now seen corresponding path program 1 times [2021-10-28 23:18:12,653 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:18:12,653 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1861563536] [2021-10-28 23:18:12,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:18:12,653 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:18:12,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:18:13,311 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:18:13,312 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:18:13,312 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1861563536] [2021-10-28 23:18:13,312 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1861563536] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:18:13,312 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:18:13,313 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-10-28 23:18:13,313 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1945290442] [2021-10-28 23:18:13,313 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-28 23:18:13,314 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:18:13,314 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-28 23:18:13,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-10-28 23:18:13,315 INFO L87 Difference]: Start difference. First operand 54 states and 62 transitions. Second operand has 9 states, 9 states have (on average 4.555555555555555) internal successors, (41), 9 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) [2021-10-28 23:18:13,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:18:13,814 INFO L93 Difference]: Finished difference Result 85 states and 97 transitions. [2021-10-28 23:18:13,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-28 23:18:13,817 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.555555555555555) internal successors, (41), 9 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 [2021-10-28 23:18:13,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:18:13,818 INFO L225 Difference]: With dead ends: 85 [2021-10-28 23:18:13,819 INFO L226 Difference]: Without dead ends: 54 [2021-10-28 23:18:13,819 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=69, Invalid=141, Unknown=0, NotChecked=0, Total=210 [2021-10-28 23:18:13,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2021-10-28 23:18:13,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2021-10-28 23:18:13,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 53 states have (on average 1.150943396226415) internal successors, (61), 53 states have internal predecessors, (61), 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) [2021-10-28 23:18:13,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 61 transitions. [2021-10-28 23:18:13,827 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 61 transitions. Word has length 41 [2021-10-28 23:18:13,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:18:13,828 INFO L470 AbstractCegarLoop]: Abstraction has 54 states and 61 transitions. [2021-10-28 23:18:13,828 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.555555555555555) internal successors, (41), 9 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) [2021-10-28 23:18:13,828 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 61 transitions. [2021-10-28 23:18:13,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-10-28 23:18:13,830 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:18:13,830 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, 1, 1, 1, 1, 1] [2021-10-28 23:18:13,830 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-28 23:18:13,830 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 23:18:13,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:18:13,831 INFO L85 PathProgramCache]: Analyzing trace with hash 737232577, now seen corresponding path program 1 times [2021-10-28 23:18:13,831 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:18:13,832 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [570207739] [2021-10-28 23:18:13,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:18:13,832 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:18:14,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:18:15,152 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:18:15,152 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:18:15,153 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [570207739] [2021-10-28 23:18:15,153 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [570207739] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:18:15,153 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:18:15,153 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-28 23:18:15,154 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [776436125] [2021-10-28 23:18:15,154 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-28 23:18:15,154 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:18:15,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-28 23:18:15,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-10-28 23:18:15,156 INFO L87 Difference]: Start difference. First operand 54 states and 61 transitions. Second operand has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 6 states have internal predecessors, (46), 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) [2021-10-28 23:18:15,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:18:15,395 INFO L93 Difference]: Finished difference Result 54 states and 61 transitions. [2021-10-28 23:18:15,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-28 23:18:15,396 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 6 states have internal predecessors, (46), 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 46 [2021-10-28 23:18:15,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:18:15,396 INFO L225 Difference]: With dead ends: 54 [2021-10-28 23:18:15,396 INFO L226 Difference]: Without dead ends: 0 [2021-10-28 23:18:15,397 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 [2021-10-28 23:18:15,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-28 23:18:15,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-28 23:18:15,398 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) [2021-10-28 23:18:15,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-28 23:18:15,398 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 46 [2021-10-28 23:18:15,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:18:15,398 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 23:18:15,399 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 6 states have internal predecessors, (46), 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) [2021-10-28 23:18:15,399 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-28 23:18:15,399 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-28 23:18:15,402 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 23:18:15,403 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-28 23:18:15,405 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-28 23:18:15,414 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 23:18:15,423 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 23:18:15,425 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 23:18:15,427 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 23:18:15,428 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 23:18:15,429 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 23:18:15,430 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 23:18:15,440 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 23:18:15,441 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 23:18:15,444 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 23:18:15,460 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 23:18:15,464 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 23:18:15,676 INFO L853 garLoopResultBuilder]: At program point L6815(lines 6806 6816) the Hoare annotation is: false [2021-10-28 23:18:15,676 INFO L857 garLoopResultBuilder]: For program point L9210(lines 9210 9215) no Hoare annotation was computed. [2021-10-28 23:18:15,676 INFO L857 garLoopResultBuilder]: For program point L9549(lines 9549 9551) no Hoare annotation was computed. [2021-10-28 23:18:15,676 INFO L853 garLoopResultBuilder]: At program point L6890(lines 6889 6891) the Hoare annotation is: false [2021-10-28 23:18:15,677 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-28 23:18:15,677 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-10-28 23:18:15,677 INFO L857 garLoopResultBuilder]: For program point L210(lines 210 212) no Hoare annotation was computed. [2021-10-28 23:18:15,677 INFO L857 garLoopResultBuilder]: For program point L210-1(lines 210 212) no Hoare annotation was computed. [2021-10-28 23:18:15,677 INFO L857 garLoopResultBuilder]: For program point L210-2(lines 210 212) no Hoare annotation was computed. [2021-10-28 23:18:15,677 INFO L857 garLoopResultBuilder]: For program point L210-3(lines 210 212) no Hoare annotation was computed. [2021-10-28 23:18:15,677 INFO L857 garLoopResultBuilder]: For program point L210-4(lines 210 212) no Hoare annotation was computed. [2021-10-28 23:18:15,678 INFO L857 garLoopResultBuilder]: For program point L210-5(lines 210 212) no Hoare annotation was computed. [2021-10-28 23:18:15,683 INFO L857 garLoopResultBuilder]: For program point L210-6(lines 210 212) no Hoare annotation was computed. [2021-10-28 23:18:15,683 INFO L857 garLoopResultBuilder]: For program point L235(line 235) no Hoare annotation was computed. [2021-10-28 23:18:15,683 INFO L857 garLoopResultBuilder]: For program point L9212(lines 9212 9214) no Hoare annotation was computed. [2021-10-28 23:18:15,683 INFO L857 garLoopResultBuilder]: For program point L211(line 211) no Hoare annotation was computed. [2021-10-28 23:18:15,684 INFO L857 garLoopResultBuilder]: For program point L211-2(line 211) no Hoare annotation was computed. [2021-10-28 23:18:15,684 INFO L857 garLoopResultBuilder]: For program point L6256-2(line 6256) no Hoare annotation was computed. [2021-10-28 23:18:15,684 INFO L857 garLoopResultBuilder]: For program point L211-4(line 211) no Hoare annotation was computed. [2021-10-28 23:18:15,684 INFO L857 garLoopResultBuilder]: For program point L6256(line 6256) no Hoare annotation was computed. [2021-10-28 23:18:15,684 INFO L857 garLoopResultBuilder]: For program point L6256-5(line 6256) no Hoare annotation was computed. [2021-10-28 23:18:15,684 INFO L857 garLoopResultBuilder]: For program point L211-6(line 211) no Hoare annotation was computed. [2021-10-28 23:18:15,685 INFO L853 garLoopResultBuilder]: At program point L6256-6(lines 6252 6257) the Hoare annotation is: (and (not (= |ULTIMATE.start_bounded_malloc_#res.base| 0)) (not (= ULTIMATE.start_aws_string_destroy_secure_harness_~str~3.base 0)) (not (= |ULTIMATE.start_ensure_string_is_allocated_bounded_length_#res.base| 0)) (not (= |ULTIMATE.start_ensure_string_is_allocated_#res.base| 0)) (= ULTIMATE.start_aws_string_destroy_secure_harness_~nondet_parameter~0 (* 256 (div ULTIMATE.start_aws_string_destroy_secure_harness_~nondet_parameter~0 256))) (not (= ULTIMATE.start_ensure_string_is_allocated_~str~0.base 0))) [2021-10-28 23:18:15,685 INFO L857 garLoopResultBuilder]: For program point L7115(lines 7115 7121) no Hoare annotation was computed. [2021-10-28 23:18:15,685 INFO L857 garLoopResultBuilder]: For program point L6256-3(line 6256) no Hoare annotation was computed. [2021-10-28 23:18:15,685 INFO L857 garLoopResultBuilder]: For program point L211-8(line 211) no Hoare annotation was computed. [2021-10-28 23:18:15,686 INFO L857 garLoopResultBuilder]: For program point L6256-9(line 6256) no Hoare annotation was computed. [2021-10-28 23:18:15,686 INFO L857 garLoopResultBuilder]: For program point L211-10(line 211) no Hoare annotation was computed. [2021-10-28 23:18:15,686 INFO L857 garLoopResultBuilder]: For program point L6256-10(line 6256) no Hoare annotation was computed. [2021-10-28 23:18:15,686 INFO L857 garLoopResultBuilder]: For program point L6256-7(line 6256) no Hoare annotation was computed. [2021-10-28 23:18:15,686 INFO L857 garLoopResultBuilder]: For program point L211-12(line 211) no Hoare annotation was computed. [2021-10-28 23:18:15,686 INFO L853 garLoopResultBuilder]: At program point L261(line 261) the Hoare annotation is: false [2021-10-28 23:18:15,687 INFO L853 garLoopResultBuilder]: At program point L6256-13(lines 6252 6257) the Hoare annotation is: (and (not (= |ULTIMATE.start_bounded_malloc_#res.base| 0)) (not (= ULTIMATE.start_aws_string_destroy_secure_harness_~str~3.base 0)) (not (= |ULTIMATE.start_ensure_string_is_allocated_bounded_length_#res.base| 0)) (not (= |ULTIMATE.start_ensure_string_is_allocated_#res.base| 0)) (= ULTIMATE.start_aws_string_destroy_secure_harness_~nondet_parameter~0 (* 256 (div ULTIMATE.start_aws_string_destroy_secure_harness_~nondet_parameter~0 256))) (not (= ULTIMATE.start_ensure_string_is_allocated_~str~0.base 0))) [2021-10-28 23:18:15,687 INFO L857 garLoopResultBuilder]: For program point L6256-12(line 6256) no Hoare annotation was computed. [2021-10-28 23:18:15,687 INFO L857 garLoopResultBuilder]: For program point L6810(lines 6810 6811) no Hoare annotation was computed. [2021-10-28 23:18:15,687 INFO L857 garLoopResultBuilder]: For program point L8734(lines 8734 8751) no Hoare annotation was computed. [2021-10-28 23:18:15,687 INFO L857 garLoopResultBuilder]: For program point L6810-2(lines 6810 6811) no Hoare annotation was computed. [2021-10-28 23:18:15,691 INFO L853 garLoopResultBuilder]: At program point L6803(lines 6800 6804) the Hoare annotation is: false [2021-10-28 23:18:15,691 INFO L860 garLoopResultBuilder]: At program point L9553(line 9553) the Hoare annotation is: true [2021-10-28 23:18:15,691 INFO L853 garLoopResultBuilder]: At program point L6886(lines 6882 6887) the Hoare annotation is: false [2021-10-28 23:18:15,691 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-10-28 23:18:15,692 INFO L857 garLoopResultBuilder]: For program point L222(lines 222 224) no Hoare annotation was computed. [2021-10-28 23:18:15,692 INFO L853 garLoopResultBuilder]: At program point L-1-2(line -1) the Hoare annotation is: (and (not (= |ULTIMATE.start_bounded_malloc_#res.base| 0)) (not (= ULTIMATE.start_aws_string_destroy_secure_harness_~str~3.base 0)) (not (= |ULTIMATE.start_ensure_string_is_allocated_bounded_length_#res.base| 0)) (not (= |ULTIMATE.start_ensure_string_is_allocated_#res.base| 0)) (= ULTIMATE.start_aws_string_destroy_secure_harness_~nondet_parameter~0 (* 256 (div ULTIMATE.start_aws_string_destroy_secure_harness_~nondet_parameter~0 256))) (not (= ULTIMATE.start_ensure_string_is_allocated_~str~0.base 0))) [2021-10-28 23:18:15,692 INFO L857 garLoopResultBuilder]: For program point L9537(lines 9537 9552) no Hoare annotation was computed. [2021-10-28 23:18:15,692 INFO L857 garLoopResultBuilder]: For program point L-1-3(line -1) no Hoare annotation was computed. [2021-10-28 23:18:15,693 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 223) no Hoare annotation was computed. [2021-10-28 23:18:15,693 INFO L857 garLoopResultBuilder]: For program point L9546(lines 9546 9547) no Hoare annotation was computed. [2021-10-28 23:18:15,693 INFO L857 garLoopResultBuilder]: For program point L9546-2(lines 9546 9547) no Hoare annotation was computed. [2021-10-28 23:18:15,693 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-28 23:18:15,693 INFO L857 garLoopResultBuilder]: For program point L223(line 223) no Hoare annotation was computed. [2021-10-28 23:18:15,694 INFO L857 garLoopResultBuilder]: For program point L223-1(line 223) no Hoare annotation was computed. [2021-10-28 23:18:15,694 INFO L857 garLoopResultBuilder]: For program point L7069(lines 7069 7073) no Hoare annotation was computed. [2021-10-28 23:18:15,694 INFO L857 garLoopResultBuilder]: For program point L9208(lines 9208 9216) no Hoare annotation was computed. [2021-10-28 23:18:15,694 INFO L857 garLoopResultBuilder]: For program point L7061(lines 7061 7074) no Hoare annotation was computed. [2021-10-28 23:18:15,694 INFO L857 garLoopResultBuilder]: For program point L9209(line 9209) no Hoare annotation was computed. [2021-10-28 23:18:15,694 INFO L857 garLoopResultBuilder]: For program point L9209-2(line 9209) no Hoare annotation was computed. [2021-10-28 23:18:15,695 INFO L853 garLoopResultBuilder]: At program point L266(line 266) the Hoare annotation is: (= 16 ULTIMATE.start_ensure_string_is_allocated_bounded_length_~max_size) [2021-10-28 23:18:15,695 INFO L853 garLoopResultBuilder]: At program point L266-1(line 266) the Hoare annotation is: false [2021-10-28 23:18:15,695 INFO L853 garLoopResultBuilder]: At program point L6245(lines 6242 6246) the Hoare annotation is: (and (not (= |ULTIMATE.start_bounded_malloc_#res.base| 0)) (not (= ULTIMATE.start_aws_string_destroy_secure_harness_~str~3.base 0)) (not (= |ULTIMATE.start_ensure_string_is_allocated_bounded_length_#res.base| 0)) (not (= |ULTIMATE.start_ensure_string_is_allocated_#res.base| 0)) (= ULTIMATE.start_aws_string_destroy_secure_harness_~nondet_parameter~0 (* 256 (div ULTIMATE.start_aws_string_destroy_secure_harness_~nondet_parameter~0 256))) (not (= ULTIMATE.start_ensure_string_is_allocated_~str~0.base 0))) [2021-10-28 23:18:15,699 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2021-10-28 23:18:15,701 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-28 23:18:15,740 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 11:18:15 BoogieIcfgContainer [2021-10-28 23:18:15,740 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-28 23:18:15,741 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 23:18:15,741 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 23:18:15,741 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 23:18:15,742 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:18:09" (3/4) ... [2021-10-28 23:18:15,745 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-28 23:18:15,791 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 131 nodes and edges [2021-10-28 23:18:15,793 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 60 nodes and edges [2021-10-28 23:18:15,795 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 27 nodes and edges [2021-10-28 23:18:15,797 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2021-10-28 23:18:15,799 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2021-10-28 23:18:15,801 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2021-10-28 23:18:15,803 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-10-28 23:18:15,805 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-28 23:18:15,864 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((!(\result == 0) && !(str == 0)) && !(\result == 0)) && !(\result == 0)) && nondet_parameter == 256 * (nondet_parameter / 256)) && !(str == 0) [2021-10-28 23:18:15,864 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((!(\result == 0) && !(str == 0)) && !(\result == 0)) && !(\result == 0)) && nondet_parameter == 256 * (nondet_parameter / 256)) && !(str == 0) [2021-10-28 23:18:15,865 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((!(\result == 0) && !(str == 0)) && !(\result == 0)) && !(\result == 0)) && nondet_parameter == 256 * (nondet_parameter / 256)) && !(str == 0) [2021-10-28 23:18:15,865 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((!(\result == 0) && !(str == 0)) && !(\result == 0)) && !(\result == 0)) && nondet_parameter == 256 * (nondet_parameter / 256)) && !(str == 0) [2021-10-28 23:18:16,928 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55fc8f04-1c65-4098-a86e-37a76e94ffdf/bin/uautomizer-GMMbpWq8iD/witness.graphml [2021-10-28 23:18:16,929 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 23:18:16,931 INFO L168 Benchmark]: Toolchain (without parser) took 24259.50 ms. Allocated memory was 130.0 MB in the beginning and 325.1 MB in the end (delta: 195.0 MB). Free memory was 87.3 MB in the beginning and 101.6 MB in the end (delta: -14.2 MB). Peak memory consumption was 233.9 MB. Max. memory is 16.1 GB. [2021-10-28 23:18:16,931 INFO L168 Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 83.9 MB. Free memory is still 39.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:18:16,932 INFO L168 Benchmark]: CACSL2BoogieTranslator took 4444.13 ms. Allocated memory was 130.0 MB in the beginning and 169.9 MB in the end (delta: 39.8 MB). Free memory was 87.1 MB in the beginning and 111.0 MB in the end (delta: -24.0 MB). Peak memory consumption was 70.4 MB. Max. memory is 16.1 GB. [2021-10-28 23:18:16,932 INFO L168 Benchmark]: Boogie Procedure Inliner took 403.31 ms. Allocated memory is still 169.9 MB. Free memory was 111.0 MB in the beginning and 98.4 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-28 23:18:16,933 INFO L168 Benchmark]: Boogie Preprocessor took 208.82 ms. Allocated memory is still 169.9 MB. Free memory was 98.4 MB in the beginning and 91.2 MB in the end (delta: 7.2 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-28 23:18:16,934 INFO L168 Benchmark]: RCFGBuilder took 11918.36 ms. Allocated memory was 169.9 MB in the beginning and 270.5 MB in the end (delta: 100.7 MB). Free memory was 91.2 MB in the beginning and 71.0 MB in the end (delta: 20.2 MB). Peak memory consumption was 148.0 MB. Max. memory is 16.1 GB. [2021-10-28 23:18:16,934 INFO L168 Benchmark]: TraceAbstraction took 6078.98 ms. Allocated memory was 270.5 MB in the beginning and 325.1 MB in the end (delta: 54.5 MB). Free memory was 69.9 MB in the beginning and 158.2 MB in the end (delta: -88.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:18:16,934 INFO L168 Benchmark]: Witness Printer took 1188.42 ms. Allocated memory is still 325.1 MB. Free memory was 158.2 MB in the beginning and 101.6 MB in the end (delta: 56.6 MB). Peak memory consumption was 111.2 MB. Max. memory is 16.1 GB. [2021-10-28 23:18:16,937 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32 ms. Allocated memory is still 83.9 MB. Free memory is still 39.4 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 4444.13 ms. Allocated memory was 130.0 MB in the beginning and 169.9 MB in the end (delta: 39.8 MB). Free memory was 87.1 MB in the beginning and 111.0 MB in the end (delta: -24.0 MB). Peak memory consumption was 70.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 403.31 ms. Allocated memory is still 169.9 MB. Free memory was 111.0 MB in the beginning and 98.4 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 208.82 ms. Allocated memory is still 169.9 MB. Free memory was 98.4 MB in the beginning and 91.2 MB in the end (delta: 7.2 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * RCFGBuilder took 11918.36 ms. Allocated memory was 169.9 MB in the beginning and 270.5 MB in the end (delta: 100.7 MB). Free memory was 91.2 MB in the beginning and 71.0 MB in the end (delta: 20.2 MB). Peak memory consumption was 148.0 MB. Max. memory is 16.1 GB. * TraceAbstraction took 6078.98 ms. Allocated memory was 270.5 MB in the beginning and 325.1 MB in the end (delta: 54.5 MB). Free memory was 69.9 MB in the beginning and 158.2 MB in the end (delta: -88.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 1188.42 ms. Allocated memory is still 325.1 MB. Free memory was 158.2 MB in the beginning and 101.6 MB in the end (delta: 56.6 MB). Peak memory consumption was 111.2 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 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 59 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 5.9s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 289 SDtfs, 845 SDslu, 322 SDs, 0 SdLazy, 87 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 46 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 1.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=65occurred in iteration=2, InterpolantAutomatonStates: 30, 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, 5 MinimizatonAttempts, 27 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 12 LocationsWithAnnotation, 12 PreInvPairs, 17 NumberOfFragments, 122 HoareAnnotationTreeSize, 12 FomulaSimplifications, 93 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 12 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 1.6s SatisfiabilityAnalysisTime, 1.9s InterpolantComputationTime, 174 NumberOfCodeBlocks, 174 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 169 ConstructedInterpolants, 0 QuantifiedInterpolants, 329 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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 1 specifications checked. All of them hold - InvariantResult [Line: -1]: Loop Invariant Derived loop invariant: ((((!(\result == 0) && !(str == 0)) && !(\result == 0)) && !(\result == 0)) && nondet_parameter == 256 * (nondet_parameter / 256)) && !(str == 0) - InvariantResult [Line: 266]: Loop Invariant Derived loop invariant: 16 == max_size - InvariantResult [Line: 9553]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 266]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 6889]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 6806]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 6242]: Loop Invariant Derived loop invariant: ((((!(\result == 0) && !(str == 0)) && !(\result == 0)) && !(\result == 0)) && nondet_parameter == 256 * (nondet_parameter / 256)) && !(str == 0) - InvariantResult [Line: 6882]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 6252]: Loop Invariant Derived loop invariant: ((((!(\result == 0) && !(str == 0)) && !(\result == 0)) && !(\result == 0)) && nondet_parameter == 256 * (nondet_parameter / 256)) && !(str == 0) - InvariantResult [Line: 6252]: Loop Invariant Derived loop invariant: ((((!(\result == 0) && !(str == 0)) && !(\result == 0)) && !(\result == 0)) && nondet_parameter == 256 * (nondet_parameter / 256)) && !(str == 0) - InvariantResult [Line: 261]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 6800]: Loop Invariant Derived loop invariant: 0 RESULT: Ultimate proved your program to be correct! [2021-10-28 23:18:17,037 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55fc8f04-1c65-4098-a86e-37a76e94ffdf/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...