./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 b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_382d4b13-1dd4-4d0c-8924-e22a4d5d40cf/bin/uautomizer-GMMbpWq8iD/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_382d4b13-1dd4-4d0c-8924-e22a4d5d40cf/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_382d4b13-1dd4-4d0c-8924-e22a4d5d40cf/bin/uautomizer-GMMbpWq8iD/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_382d4b13-1dd4-4d0c-8924-e22a4d5d40cf/bin/uautomizer-GMMbpWq8iD/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_382d4b13-1dd4-4d0c-8924-e22a4d5d40cf/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_382d4b13-1dd4-4d0c-8924-e22a4d5d40cf/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 be41ee8ace02416f2e9952c11df8cb43e10a04c126211792ad12271f5624b8e0 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 23:16:53,268 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 23:16:53,271 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 23:16:53,323 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 23:16:53,326 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 23:16:53,331 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 23:16:53,335 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 23:16:53,339 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 23:16:53,342 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 23:16:53,349 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 23:16:53,350 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 23:16:53,352 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 23:16:53,353 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 23:16:53,356 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 23:16:53,358 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 23:16:53,361 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 23:16:53,367 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 23:16:53,368 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 23:16:53,375 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 23:16:53,382 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 23:16:53,384 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 23:16:53,386 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 23:16:53,390 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 23:16:53,391 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 23:16:53,404 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 23:16:53,404 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 23:16:53,405 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 23:16:53,407 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 23:16:53,408 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 23:16:53,410 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 23:16:53,411 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 23:16:53,412 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 23:16:53,414 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 23:16:53,416 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 23:16:53,418 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 23:16:53,418 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 23:16:53,419 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 23:16:53,419 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 23:16:53,420 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 23:16:53,421 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 23:16:53,422 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 23:16:53,423 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_382d4b13-1dd4-4d0c-8924-e22a4d5d40cf/bin/uautomizer-GMMbpWq8iD/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-10-28 23:16:53,474 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 23:16:53,477 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 23:16:53,478 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 23:16:53,478 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 23:16:53,486 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 23:16:53,487 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 23:16:53,487 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 23:16:53,488 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 23:16:53,488 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 23:16:53,488 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 23:16:53,489 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-28 23:16:53,490 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-28 23:16:53,490 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-28 23:16:53,490 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 23:16:53,490 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 23:16:53,490 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-28 23:16:53,491 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 23:16:53,491 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 23:16:53,491 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-28 23:16:53,491 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 23:16:53,492 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 23:16:53,492 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-28 23:16:53,492 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-28 23:16:53,492 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 23:16:53,493 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-28 23:16:53,493 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-28 23:16:53,493 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-10-28 23:16:53,493 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-28 23:16:53,494 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 23:16:53,495 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_382d4b13-1dd4-4d0c-8924-e22a4d5d40cf/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_382d4b13-1dd4-4d0c-8924-e22a4d5d40cf/bin/uautomizer-GMMbpWq8iD Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> be41ee8ace02416f2e9952c11df8cb43e10a04c126211792ad12271f5624b8e0 [2021-10-28 23:16:53,781 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 23:16:53,817 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 23:16:53,820 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 23:16:53,822 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 23:16:53,823 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 23:16:53,824 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_382d4b13-1dd4-4d0c-8924-e22a4d5d40cf/bin/uautomizer-GMMbpWq8iD/../../sv-benchmarks/c/aws-c-common/aws_string_bytes_harness.i [2021-10-28 23:16:53,891 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_382d4b13-1dd4-4d0c-8924-e22a4d5d40cf/bin/uautomizer-GMMbpWq8iD/data/2a75d4810/80676cc8bb0e45828ac9c74617449aac/FLAGa671e9113 [2021-10-28 23:16:54,796 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 23:16:54,797 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_382d4b13-1dd4-4d0c-8924-e22a4d5d40cf/sv-benchmarks/c/aws-c-common/aws_string_bytes_harness.i [2021-10-28 23:16:54,843 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_382d4b13-1dd4-4d0c-8924-e22a4d5d40cf/bin/uautomizer-GMMbpWq8iD/data/2a75d4810/80676cc8bb0e45828ac9c74617449aac/FLAGa671e9113 [2021-10-28 23:16:55,283 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_382d4b13-1dd4-4d0c-8924-e22a4d5d40cf/bin/uautomizer-GMMbpWq8iD/data/2a75d4810/80676cc8bb0e45828ac9c74617449aac [2021-10-28 23:16:55,287 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 23:16:55,288 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 23:16:55,290 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 23:16:55,291 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 23:16:55,295 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 23:16:55,296 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:16:55" (1/1) ... [2021-10-28 23:16:55,297 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@768e6d18 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:16:55, skipping insertion in model container [2021-10-28 23:16:55,298 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:16:55" (1/1) ... [2021-10-28 23:16:55,306 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 23:16:55,413 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 23:16:55,772 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_382d4b13-1dd4-4d0c-8924-e22a4d5d40cf/sv-benchmarks/c/aws-c-common/aws_string_bytes_harness.i[4490,4503] [2021-10-28 23:16:55,785 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_382d4b13-1dd4-4d0c-8924-e22a4d5d40cf/sv-benchmarks/c/aws-c-common/aws_string_bytes_harness.i[4550,4563] [2021-10-28 23:16:55,805 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-10-28 23:16:55,811 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-10-28 23:16:56,787 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 23:16:56,788 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 23:16:56,789 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 23:16:56,790 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 23:16:56,791 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 23:16:56,819 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 23:16:56,820 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 23:16:56,823 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 23:16:56,826 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 23:16:56,828 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 23:16:56,830 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 23:16:56,831 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 23:16:56,831 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 23:16:57,295 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-10-28 23:16:57,297 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-10-28 23:16:57,301 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-10-28 23:16:57,302 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-10-28 23:16:57,304 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-10-28 23:16:57,305 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-10-28 23:16:57,306 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-10-28 23:16:57,307 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-10-28 23:16:57,311 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-10-28 23:16:57,320 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-10-28 23:16:57,505 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-10-28 23:16:57,522 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:16:57,549 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 23:16:57,563 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_382d4b13-1dd4-4d0c-8924-e22a4d5d40cf/sv-benchmarks/c/aws-c-common/aws_string_bytes_harness.i[4490,4503] [2021-10-28 23:16:57,573 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_382d4b13-1dd4-4d0c-8924-e22a4d5d40cf/sv-benchmarks/c/aws-c-common/aws_string_bytes_harness.i[4550,4563] [2021-10-28 23:16:57,576 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-10-28 23:16:57,577 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-10-28 23:16:57,638 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 23:16:57,638 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 23:16:57,640 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 23:16:57,640 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 23:16:57,641 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 23:16:57,660 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 23:16:57,661 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 23:16:57,668 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 23:16:57,669 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 23:16:57,671 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 23:16:57,672 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 23:16:57,673 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 23:16:57,673 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 23:16:57,783 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-10-28 23:16:57,784 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-10-28 23:16:57,785 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-10-28 23:16:57,786 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-10-28 23:16:57,788 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-10-28 23:16:57,790 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-10-28 23:16:57,790 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-10-28 23:16:57,791 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-10-28 23:16:57,792 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-10-28 23:16:57,792 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-10-28 23:16:57,880 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-10-28 23:16:57,906 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:16:58,132 INFO L208 MainTranslator]: Completed translation [2021-10-28 23:16:58,133 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:16:58 WrapperNode [2021-10-28 23:16:58,133 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 23:16:58,134 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 23:16:58,134 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 23:16:58,135 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 23:16:58,143 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:16:58" (1/1) ... [2021-10-28 23:16:58,229 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:16:58" (1/1) ... [2021-10-28 23:16:58,277 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 23:16:58,278 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 23:16:58,278 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 23:16:58,278 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 23:16:58,288 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:16:58" (1/1) ... [2021-10-28 23:16:58,289 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:16:58" (1/1) ... [2021-10-28 23:16:58,295 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:16:58" (1/1) ... [2021-10-28 23:16:58,295 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:16:58" (1/1) ... [2021-10-28 23:16:58,310 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:16:58" (1/1) ... [2021-10-28 23:16:58,313 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:16:58" (1/1) ... [2021-10-28 23:16:58,317 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:16:58" (1/1) ... [2021-10-28 23:16:58,324 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 23:16:58,325 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 23:16:58,325 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 23:16:58,325 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 23:16:58,326 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:16:58" (1/1) ... [2021-10-28 23:16:58,344 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 23:16:58,358 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_382d4b13-1dd4-4d0c-8924-e22a4d5d40cf/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:16:58,388 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_382d4b13-1dd4-4d0c-8924-e22a4d5d40cf/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-28 23:16:58,421 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_382d4b13-1dd4-4d0c-8924-e22a4d5d40cf/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-28 23:16:58,439 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-28 23:16:58,439 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-28 23:16:58,440 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-10-28 23:16:58,440 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 23:16:58,440 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 23:16:58,441 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 23:16:58,442 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-10-28 23:16:58,442 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-28 23:16:58,442 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-28 23:16:59,097 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 23:16:59,097 INFO L299 CfgBuilder]: Removed 36 assume(true) statements. [2021-10-28 23:16:59,099 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:16:59 BoogieIcfgContainer [2021-10-28 23:16:59,099 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 23:16:59,101 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-28 23:16:59,101 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-28 23:16:59,105 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-28 23:16:59,105 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 11:16:55" (1/3) ... [2021-10-28 23:16:59,106 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65f4eb31 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 11:16:59, skipping insertion in model container [2021-10-28 23:16:59,106 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:16:58" (2/3) ... [2021-10-28 23:16:59,107 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65f4eb31 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 11:16:59, skipping insertion in model container [2021-10-28 23:16:59,107 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:16:59" (3/3) ... [2021-10-28 23:16:59,108 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_string_bytes_harness.i [2021-10-28 23:16:59,115 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-28 23:16:59,115 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-10-28 23:16:59,170 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-28 23:16:59,179 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 23:16:59,179 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-10-28 23:16:59,199 INFO L276 IsEmpty]: Start isEmpty. Operand has 40 states, 37 states have (on average 1.3243243243243243) internal successors, (49), 39 states have internal predecessors, (49), 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 23:16:59,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-10-28 23:16:59,206 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:16:59,207 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] [2021-10-28 23:16:59,208 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 23:16:59,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:16:59,215 INFO L85 PathProgramCache]: Analyzing trace with hash 625727524, now seen corresponding path program 1 times [2021-10-28 23:16:59,228 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:16:59,229 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [949587776] [2021-10-28 23:16:59,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:16:59,230 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:16:59,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:16:59,672 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 23:16:59,673 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:16:59,673 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [949587776] [2021-10-28 23:16:59,674 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [949587776] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:16:59,674 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:16:59,675 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-28 23:16:59,677 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [353081288] [2021-10-28 23:16:59,683 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-28 23:16:59,685 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:16:59,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-28 23:16:59,705 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-28 23:16:59,708 INFO L87 Difference]: Start difference. First operand has 40 states, 37 states have (on average 1.3243243243243243) internal successors, (49), 39 states have internal predecessors, (49), 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 12.0) internal successors, (24), 2 states have internal predecessors, (24), 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 23:16:59,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:16:59,735 INFO L93 Difference]: Finished difference Result 76 states and 93 transitions. [2021-10-28 23:16:59,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-28 23:16:59,737 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 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 24 [2021-10-28 23:16:59,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:16:59,747 INFO L225 Difference]: With dead ends: 76 [2021-10-28 23:16:59,747 INFO L226 Difference]: Without dead ends: 35 [2021-10-28 23:16:59,751 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 23:16:59,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2021-10-28 23:16:59,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2021-10-28 23:16:59,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 33 states have (on average 1.1818181818181819) internal successors, (39), 34 states have internal predecessors, (39), 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 23:16:59,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 39 transitions. [2021-10-28 23:16:59,796 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 39 transitions. Word has length 24 [2021-10-28 23:16:59,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:16:59,797 INFO L470 AbstractCegarLoop]: Abstraction has 35 states and 39 transitions. [2021-10-28 23:16:59,798 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 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 23:16:59,799 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 39 transitions. [2021-10-28 23:16:59,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-10-28 23:16:59,803 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:16:59,804 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] [2021-10-28 23:16:59,804 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-28 23:16:59,804 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 23:16:59,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:16:59,809 INFO L85 PathProgramCache]: Analyzing trace with hash 1050276392, now seen corresponding path program 1 times [2021-10-28 23:16:59,810 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:16:59,810 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1854308117] [2021-10-28 23:16:59,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:16:59,816 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:16:59,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:17:00,063 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 23:17:00,064 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:17:00,064 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1854308117] [2021-10-28 23:17:00,064 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1854308117] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:17:00,065 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:17:00,065 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-10-28 23:17:00,065 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [127572971] [2021-10-28 23:17:00,067 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-28 23:17:00,067 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:17:00,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-28 23:17:00,068 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-10-28 23:17:00,068 INFO L87 Difference]: Start difference. First operand 35 states and 39 transitions. Second operand has 10 states, 10 states have (on average 2.4) internal successors, (24), 10 states have internal predecessors, (24), 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 23:17:00,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:17:00,312 INFO L93 Difference]: Finished difference Result 54 states and 60 transitions. [2021-10-28 23:17:00,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-28 23:17:00,312 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.4) internal successors, (24), 10 states have internal predecessors, (24), 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 24 [2021-10-28 23:17:00,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:17:00,314 INFO L225 Difference]: With dead ends: 54 [2021-10-28 23:17:00,314 INFO L226 Difference]: Without dead ends: 35 [2021-10-28 23:17:00,315 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=87, Invalid=185, Unknown=0, NotChecked=0, Total=272 [2021-10-28 23:17:00,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2021-10-28 23:17:00,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2021-10-28 23:17:00,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 33 states have (on average 1.121212121212121) internal successors, (37), 34 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:17:00,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 37 transitions. [2021-10-28 23:17:00,323 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 37 transitions. Word has length 24 [2021-10-28 23:17:00,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:17:00,324 INFO L470 AbstractCegarLoop]: Abstraction has 35 states and 37 transitions. [2021-10-28 23:17:00,324 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.4) internal successors, (24), 10 states have internal predecessors, (24), 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 23:17:00,324 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 37 transitions. [2021-10-28 23:17:00,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-10-28 23:17:00,325 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:17:00,326 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] [2021-10-28 23:17:00,326 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-28 23:17:00,326 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 23:17:00,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:17:00,327 INFO L85 PathProgramCache]: Analyzing trace with hash 1859623018, now seen corresponding path program 1 times [2021-10-28 23:17:00,327 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:17:00,328 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1528872077] [2021-10-28 23:17:00,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:17:00,328 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:17:00,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:17:00,654 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 23:17:00,654 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:17:00,655 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1528872077] [2021-10-28 23:17:00,655 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1528872077] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:17:00,655 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:17:00,655 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-10-28 23:17:00,656 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1005821029] [2021-10-28 23:17:00,657 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-10-28 23:17:00,657 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:17:00,658 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-10-28 23:17:00,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2021-10-28 23:17:00,660 INFO L87 Difference]: Start difference. First operand 35 states and 37 transitions. Second operand has 11 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 11 states have internal predecessors, (24), 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 23:17:00,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:17:00,938 INFO L93 Difference]: Finished difference Result 35 states and 37 transitions. [2021-10-28 23:17:00,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-28 23:17:00,939 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 11 states have internal predecessors, (24), 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 24 [2021-10-28 23:17:00,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:17:00,940 INFO L225 Difference]: With dead ends: 35 [2021-10-28 23:17:00,940 INFO L226 Difference]: Without dead ends: 33 [2021-10-28 23:17:00,941 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=93, Invalid=213, Unknown=0, NotChecked=0, Total=306 [2021-10-28 23:17:00,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2021-10-28 23:17:00,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2021-10-28 23:17:00,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 32 states have (on average 1.09375) internal successors, (35), 32 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:17:00,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 35 transitions. [2021-10-28 23:17:00,947 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 35 transitions. Word has length 24 [2021-10-28 23:17:00,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:17:00,947 INFO L470 AbstractCegarLoop]: Abstraction has 33 states and 35 transitions. [2021-10-28 23:17:00,947 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 11 states have internal predecessors, (24), 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 23:17:00,948 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 35 transitions. [2021-10-28 23:17:00,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-10-28 23:17:00,949 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:17:00,949 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] [2021-10-28 23:17:00,949 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-28 23:17:00,949 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 23:17:00,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:17:00,950 INFO L85 PathProgramCache]: Analyzing trace with hash 1676025637, now seen corresponding path program 1 times [2021-10-28 23:17:00,950 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:17:00,950 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1021938955] [2021-10-28 23:17:00,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:17:00,951 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:17:01,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:17:01,260 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 23:17:01,260 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:17:01,261 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1021938955] [2021-10-28 23:17:01,261 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1021938955] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:17:01,261 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:17:01,261 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-28 23:17:01,262 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1262625346] [2021-10-28 23:17:01,262 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-28 23:17:01,262 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:17:01,263 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-28 23:17:01,263 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-28 23:17:01,264 INFO L87 Difference]: Start difference. First operand 33 states and 35 transitions. Second operand has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 6 states have internal predecessors, (31), 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 23:17:01,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:17:01,320 INFO L93 Difference]: Finished difference Result 33 states and 35 transitions. [2021-10-28 23:17:01,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-28 23:17:01,320 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 6 states have internal predecessors, (31), 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 31 [2021-10-28 23:17:01,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:17:01,321 INFO L225 Difference]: With dead ends: 33 [2021-10-28 23:17:01,321 INFO L226 Difference]: Without dead ends: 0 [2021-10-28 23:17:01,322 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-10-28 23:17:01,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-28 23:17:01,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-28 23:17:01,323 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 23:17:01,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-28 23:17:01,323 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 31 [2021-10-28 23:17:01,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:17:01,324 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 23:17:01,326 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 6 states have internal predecessors, (31), 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 23:17:01,326 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-28 23:17:01,326 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-28 23:17:01,329 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 23:17:01,330 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 23:17:01,331 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-28 23:17:01,338 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-28 23:17:01,342 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 23:17:01,345 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 23:17:01,345 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 23:17:01,347 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 23:17:01,348 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 23:17:01,349 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 23:17:01,350 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 23:17:01,353 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 23:17:01,358 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 23:17:01,361 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 23:17:01,362 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 23:17:01,383 INFO L853 garLoopResultBuilder]: At program point L6295(lines 6292 6296) the Hoare annotation is: false [2021-10-28 23:17:01,383 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 223) no Hoare annotation was computed. [2021-10-28 23:17:01,384 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-10-28 23:17:01,384 INFO L857 garLoopResultBuilder]: For program point L222(lines 222 224) no Hoare annotation was computed. [2021-10-28 23:17:01,384 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-28 23:17:01,384 INFO L857 garLoopResultBuilder]: For program point L222-1(lines 222 224) no Hoare annotation was computed. [2021-10-28 23:17:01,384 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-10-28 23:17:01,385 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 223) no Hoare annotation was computed. [2021-10-28 23:17:01,385 INFO L857 garLoopResultBuilder]: For program point L210(lines 210 212) no Hoare annotation was computed. [2021-10-28 23:17:01,385 INFO L857 garLoopResultBuilder]: For program point L210-1(lines 210 212) no Hoare annotation was computed. [2021-10-28 23:17:01,385 INFO L857 garLoopResultBuilder]: For program point L210-2(lines 210 212) no Hoare annotation was computed. [2021-10-28 23:17:01,385 INFO L857 garLoopResultBuilder]: For program point L6854(lines 6854 6855) no Hoare annotation was computed. [2021-10-28 23:17:01,386 INFO L857 garLoopResultBuilder]: For program point L6854-2(lines 6854 6855) no Hoare annotation was computed. [2021-10-28 23:17:01,386 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-28 23:17:01,390 INFO L857 garLoopResultBuilder]: For program point L223(line 223) no Hoare annotation was computed. [2021-10-28 23:17:01,390 INFO L857 garLoopResultBuilder]: For program point L223-1(line 223) no Hoare annotation was computed. [2021-10-28 23:17:01,390 INFO L857 garLoopResultBuilder]: For program point L223-3(line 223) no Hoare annotation was computed. [2021-10-28 23:17:01,391 INFO L857 garLoopResultBuilder]: For program point L7259(lines 7259 7263) no Hoare annotation was computed. [2021-10-28 23:17:01,391 INFO L857 garLoopResultBuilder]: For program point L223-4(line 223) no Hoare annotation was computed. [2021-10-28 23:17:01,391 INFO L857 garLoopResultBuilder]: For program point L211(line 211) no Hoare annotation was computed. [2021-10-28 23:17:01,391 INFO L857 garLoopResultBuilder]: For program point L211-2(line 211) no Hoare annotation was computed. [2021-10-28 23:17:01,391 INFO L857 garLoopResultBuilder]: For program point L211-4(line 211) no Hoare annotation was computed. [2021-10-28 23:17:01,392 INFO L853 garLoopResultBuilder]: At program point L6859(lines 6850 6860) the Hoare annotation is: false [2021-10-28 23:17:01,392 INFO L853 garLoopResultBuilder]: At program point L261(line 261) the Hoare annotation is: false [2021-10-28 23:17:01,392 INFO L857 garLoopResultBuilder]: For program point L6306(line 6306) no Hoare annotation was computed. [2021-10-28 23:17:01,392 INFO L857 garLoopResultBuilder]: For program point L6306-3(line 6306) no Hoare annotation was computed. [2021-10-28 23:17:01,392 INFO L853 garLoopResultBuilder]: At program point L6847(lines 6844 6848) the Hoare annotation is: false [2021-10-28 23:17:01,393 INFO L860 garLoopResultBuilder]: At program point L7264(line 7264) the Hoare annotation is: true [2021-10-28 23:17:01,393 INFO L857 garLoopResultBuilder]: For program point L6306-2(line 6306) no Hoare annotation was computed. [2021-10-28 23:17:01,393 INFO L857 garLoopResultBuilder]: For program point L6306-7(line 6306) no Hoare annotation was computed. [2021-10-28 23:17:01,393 INFO L857 garLoopResultBuilder]: For program point L6306-5(line 6306) no Hoare annotation was computed. [2021-10-28 23:17:01,393 INFO L853 garLoopResultBuilder]: At program point L6306-6(lines 6302 6307) the Hoare annotation is: false [2021-10-28 23:17:01,393 INFO L853 garLoopResultBuilder]: At program point L6934(lines 6933 6935) the Hoare annotation is: false [2021-10-28 23:17:01,394 INFO L853 garLoopResultBuilder]: At program point L6839(lines 6837 6842) the Hoare annotation is: false [2021-10-28 23:17:01,394 INFO L857 garLoopResultBuilder]: For program point L6306-12(line 6306) no Hoare annotation was computed. [2021-10-28 23:17:01,394 INFO L857 garLoopResultBuilder]: For program point L6306-9(line 6306) no Hoare annotation was computed. [2021-10-28 23:17:01,394 INFO L857 garLoopResultBuilder]: For program point L6306-10(line 6306) no Hoare annotation was computed. [2021-10-28 23:17:01,394 INFO L853 garLoopResultBuilder]: At program point L6930(lines 6926 6931) the Hoare annotation is: false [2021-10-28 23:17:01,395 INFO L853 garLoopResultBuilder]: At program point L6306-13(lines 6302 6307) the Hoare annotation is: false [2021-10-28 23:17:01,395 INFO L853 garLoopResultBuilder]: At program point L266(line 266) the Hoare annotation is: (= ULTIMATE.start_ensure_string_is_allocated_bounded_length_~max_size 1234549) [2021-10-28 23:17:01,399 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2021-10-28 23:17:01,401 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-28 23:17:01,425 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 11:17:01 BoogieIcfgContainer [2021-10-28 23:17:01,425 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-28 23:17:01,426 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 23:17:01,426 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 23:17:01,426 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 23:17:01,427 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:16:59" (3/4) ... [2021-10-28 23:17:01,431 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-28 23:17:01,448 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 18 nodes and edges [2021-10-28 23:17:01,448 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-10-28 23:17:01,449 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-28 23:17:01,449 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-28 23:17:01,532 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_382d4b13-1dd4-4d0c-8924-e22a4d5d40cf/bin/uautomizer-GMMbpWq8iD/witness.graphml [2021-10-28 23:17:01,532 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 23:17:01,534 INFO L168 Benchmark]: Toolchain (without parser) took 6244.58 ms. Allocated memory was 121.6 MB in the beginning and 165.7 MB in the end (delta: 44.0 MB). Free memory was 87.0 MB in the beginning and 108.0 MB in the end (delta: -21.0 MB). Peak memory consumption was 21.3 MB. Max. memory is 16.1 GB. [2021-10-28 23:17:01,534 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 88.1 MB. Free memory was 42.8 MB in the beginning and 42.8 MB in the end (delta: 56.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:17:01,534 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2843.11 ms. Allocated memory is still 121.6 MB. Free memory was 86.6 MB in the beginning and 61.3 MB in the end (delta: 25.3 MB). Peak memory consumption was 48.4 MB. Max. memory is 16.1 GB. [2021-10-28 23:17:01,535 INFO L168 Benchmark]: Boogie Procedure Inliner took 142.76 ms. Allocated memory is still 121.6 MB. Free memory was 61.3 MB in the beginning and 55.9 MB in the end (delta: 5.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-28 23:17:01,535 INFO L168 Benchmark]: Boogie Preprocessor took 46.05 ms. Allocated memory is still 121.6 MB. Free memory was 55.9 MB in the beginning and 53.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 23:17:01,536 INFO L168 Benchmark]: RCFGBuilder took 774.88 ms. Allocated memory was 121.6 MB in the beginning and 165.7 MB in the end (delta: 44.0 MB). Free memory was 53.8 MB in the beginning and 118.1 MB in the end (delta: -64.3 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-28 23:17:01,536 INFO L168 Benchmark]: TraceAbstraction took 2324.30 ms. Allocated memory is still 165.7 MB. Free memory was 117.1 MB in the beginning and 113.2 MB in the end (delta: 3.9 MB). Peak memory consumption was 4.7 MB. Max. memory is 16.1 GB. [2021-10-28 23:17:01,536 INFO L168 Benchmark]: Witness Printer took 106.23 ms. Allocated memory is still 165.7 MB. Free memory was 113.2 MB in the beginning and 108.0 MB in the end (delta: 5.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-28 23:17:01,539 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 88.1 MB. Free memory was 42.8 MB in the beginning and 42.8 MB in the end (delta: 56.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 2843.11 ms. Allocated memory is still 121.6 MB. Free memory was 86.6 MB in the beginning and 61.3 MB in the end (delta: 25.3 MB). Peak memory consumption was 48.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 142.76 ms. Allocated memory is still 121.6 MB. Free memory was 61.3 MB in the beginning and 55.9 MB in the end (delta: 5.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 46.05 ms. Allocated memory is still 121.6 MB. Free memory was 55.9 MB in the beginning and 53.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 774.88 ms. Allocated memory was 121.6 MB in the beginning and 165.7 MB in the end (delta: 44.0 MB). Free memory was 53.8 MB in the beginning and 118.1 MB in the end (delta: -64.3 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 2324.30 ms. Allocated memory is still 165.7 MB. Free memory was 117.1 MB in the beginning and 113.2 MB in the end (delta: 3.9 MB). Peak memory consumption was 4.7 MB. Max. memory is 16.1 GB. * Witness Printer took 106.23 ms. Allocated memory is still 165.7 MB. Free memory was 113.2 MB in the beginning and 108.0 MB in the end (delta: 5.2 MB). Peak memory consumption was 4.2 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 - 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, 40 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 2.2s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 97 SDtfs, 278 SDslu, 199 SDs, 0 SdLazy, 109 SolverSat, 24 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 47 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=40occurred in iteration=0, InterpolantAutomatonStates: 28, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 11 LocationsWithAnnotation, 11 PreInvPairs, 12 NumberOfFragments, 13 HoareAnnotationTreeSize, 11 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 11 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 103 NumberOfCodeBlocks, 103 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 99 ConstructedInterpolants, 0 QuantifiedInterpolants, 283 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - InvariantResult [Line: 266]: Loop Invariant Derived loop invariant: max_size == 1234549 - InvariantResult [Line: 7264]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 6933]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 6302]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 6292]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 6850]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 6837]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 6926]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 261]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 6844]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 6302]: Loop Invariant Derived loop invariant: 0 RESULT: Ultimate proved your program to be correct! [2021-10-28 23:17:01,584 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_382d4b13-1dd4-4d0c-8924-e22a4d5d40cf/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...