./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_byte_buf_clean_up_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 53f42b1a Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb4d4533-a545-420e-9e94-0e6796ffcf09/bin/utaipan-TEXQjIfE4P/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb4d4533-a545-420e-9e94-0e6796ffcf09/bin/utaipan-TEXQjIfE4P/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb4d4533-a545-420e-9e94-0e6796ffcf09/bin/utaipan-TEXQjIfE4P/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb4d4533-a545-420e-9e94-0e6796ffcf09/bin/utaipan-TEXQjIfE4P/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_buf_clean_up_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb4d4533-a545-420e-9e94-0e6796ffcf09/bin/utaipan-TEXQjIfE4P/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb4d4533-a545-420e-9e94-0e6796ffcf09/bin/utaipan-TEXQjIfE4P --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 Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash c2c8100e1f648cee1922c84a2421989bafb670d4445ddc160c17e3cd878eaa49 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-20 23:15:14,087 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-20 23:15:14,089 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-20 23:15:14,154 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-20 23:15:14,154 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-20 23:15:14,159 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-20 23:15:14,161 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-20 23:15:14,166 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-20 23:15:14,168 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-20 23:15:14,176 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-20 23:15:14,177 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-20 23:15:14,178 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-20 23:15:14,178 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-20 23:15:14,180 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-20 23:15:14,181 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-20 23:15:14,183 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-20 23:15:14,184 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-20 23:15:14,185 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-20 23:15:14,187 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-20 23:15:14,195 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-20 23:15:14,198 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-20 23:15:14,200 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-20 23:15:14,205 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-20 23:15:14,206 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-20 23:15:14,214 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-20 23:15:14,214 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-20 23:15:14,214 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-20 23:15:14,216 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-20 23:15:14,217 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-20 23:15:14,218 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-20 23:15:14,219 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-20 23:15:14,220 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-20 23:15:14,222 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-20 23:15:14,223 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-20 23:15:14,225 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-20 23:15:14,225 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-20 23:15:14,226 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-20 23:15:14,226 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-20 23:15:14,226 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-20 23:15:14,227 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-20 23:15:14,228 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-20 23:15:14,229 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb4d4533-a545-420e-9e94-0e6796ffcf09/bin/utaipan-TEXQjIfE4P/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-20 23:15:14,276 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-20 23:15:14,276 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-20 23:15:14,277 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-20 23:15:14,277 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-20 23:15:14,284 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-20 23:15:14,285 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-20 23:15:14,285 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-20 23:15:14,285 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-20 23:15:14,285 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-20 23:15:14,286 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-20 23:15:14,287 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-20 23:15:14,287 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-20 23:15:14,287 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-20 23:15:14,288 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-20 23:15:14,288 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-20 23:15:14,288 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-20 23:15:14,288 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-20 23:15:14,289 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-20 23:15:14,289 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-20 23:15:14,290 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-20 23:15:14,290 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-20 23:15:14,290 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-20 23:15:14,290 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-20 23:15:14,291 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-20 23:15:14,291 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-20 23:15:14,291 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-20 23:15:14,293 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-20 23:15:14,293 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-20 23:15:14,293 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-20 23:15:14,294 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 23:15:14,294 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-20 23:15:14,294 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-20 23:15:14,295 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-20 23:15:14,295 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-20 23:15:14,295 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-20 23:15:14,295 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-20 23:15:14,296 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-20 23:15:14,296 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-20 23:15:14,296 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_fb4d4533-a545-420e-9e94-0e6796ffcf09/bin/utaipan-TEXQjIfE4P/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb4d4533-a545-420e-9e94-0e6796ffcf09/bin/utaipan-TEXQjIfE4P Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c2c8100e1f648cee1922c84a2421989bafb670d4445ddc160c17e3cd878eaa49 [2021-11-20 23:15:14,558 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-20 23:15:14,588 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-20 23:15:14,590 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-20 23:15:14,591 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-20 23:15:14,597 INFO L275 PluginConnector]: CDTParser initialized [2021-11-20 23:15:14,598 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb4d4533-a545-420e-9e94-0e6796ffcf09/bin/utaipan-TEXQjIfE4P/../../sv-benchmarks/c/aws-c-common/aws_byte_buf_clean_up_harness.i [2021-11-20 23:15:14,684 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb4d4533-a545-420e-9e94-0e6796ffcf09/bin/utaipan-TEXQjIfE4P/data/64248950d/5a006f5af2ad400bab58341a001c8530/FLAGd104ebd8c [2021-11-20 23:15:15,552 INFO L306 CDTParser]: Found 1 translation units. [2021-11-20 23:15:15,553 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb4d4533-a545-420e-9e94-0e6796ffcf09/sv-benchmarks/c/aws-c-common/aws_byte_buf_clean_up_harness.i [2021-11-20 23:15:15,607 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb4d4533-a545-420e-9e94-0e6796ffcf09/bin/utaipan-TEXQjIfE4P/data/64248950d/5a006f5af2ad400bab58341a001c8530/FLAGd104ebd8c [2021-11-20 23:15:15,973 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb4d4533-a545-420e-9e94-0e6796ffcf09/bin/utaipan-TEXQjIfE4P/data/64248950d/5a006f5af2ad400bab58341a001c8530 [2021-11-20 23:15:15,978 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-20 23:15:15,979 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-20 23:15:15,981 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-20 23:15:15,981 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-20 23:15:15,985 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-20 23:15:15,986 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:15:15" (1/1) ... [2021-11-20 23:15:15,987 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@48141b9a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:15:15, skipping insertion in model container [2021-11-20 23:15:15,987 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:15:15" (1/1) ... [2021-11-20 23:15:15,994 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-20 23:15:16,132 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-20 23:15:16,430 WARN L230 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_fb4d4533-a545-420e-9e94-0e6796ffcf09/sv-benchmarks/c/aws-c-common/aws_byte_buf_clean_up_harness.i[4495,4508] [2021-11-20 23:15:16,437 WARN L230 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_fb4d4533-a545-420e-9e94-0e6796ffcf09/sv-benchmarks/c/aws-c-common/aws_byte_buf_clean_up_harness.i[4555,4568] [2021-11-20 23:15:17,426 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 23:15:17,427 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 23:15:17,427 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 23:15:17,428 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 23:15:17,429 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 23:15:17,443 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 23:15:17,444 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 23:15:17,446 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 23:15:17,447 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 23:15:17,818 WARN L610 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-20 23:15:17,819 WARN L610 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-20 23:15:17,820 WARN L610 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-20 23:15:17,822 WARN L610 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-20 23:15:17,823 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-20 23:15:17,824 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-20 23:15:17,825 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-20 23:15:17,826 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-20 23:15:17,826 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-20 23:15:17,827 WARN L610 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-20 23:15:17,999 WARN L610 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-20 23:15:18,135 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 23:15:18,149 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 23:15:18,261 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 23:15:18,336 INFO L203 MainTranslator]: Completed pre-run [2021-11-20 23:15:18,362 WARN L230 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_fb4d4533-a545-420e-9e94-0e6796ffcf09/sv-benchmarks/c/aws-c-common/aws_byte_buf_clean_up_harness.i[4495,4508] [2021-11-20 23:15:18,362 WARN L230 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_fb4d4533-a545-420e-9e94-0e6796ffcf09/sv-benchmarks/c/aws-c-common/aws_byte_buf_clean_up_harness.i[4555,4568] [2021-11-20 23:15:18,463 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 23:15:18,473 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 23:15:18,487 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 23:15:18,488 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 23:15:18,489 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 23:15:18,502 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 23:15:18,502 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 23:15:18,503 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 23:15:18,504 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 23:15:18,550 WARN L610 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-20 23:15:18,551 WARN L610 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-20 23:15:18,551 WARN L610 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-20 23:15:18,552 WARN L610 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-20 23:15:18,553 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-20 23:15:18,553 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-20 23:15:18,554 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-20 23:15:18,555 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-20 23:15:18,555 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-20 23:15:18,555 WARN L610 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-20 23:15:18,575 WARN L610 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-20 23:15:18,620 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 23:15:18,621 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 23:15:18,647 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 23:15:18,863 INFO L208 MainTranslator]: Completed translation [2021-11-20 23:15:18,864 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:15:18 WrapperNode [2021-11-20 23:15:18,864 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-20 23:15:18,865 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-20 23:15:18,865 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-20 23:15:18,865 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-20 23:15:18,873 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:15:18" (1/1) ... [2021-11-20 23:15:19,021 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:15:18" (1/1) ... [2021-11-20 23:15:19,133 INFO L137 Inliner]: procedures = 691, calls = 2502, calls flagged for inlining = 53, calls inlined = 4, statements flattened = 753 [2021-11-20 23:15:19,134 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-20 23:15:19,134 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-20 23:15:19,134 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-20 23:15:19,135 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-20 23:15:19,143 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:15:18" (1/1) ... [2021-11-20 23:15:19,144 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:15:18" (1/1) ... [2021-11-20 23:15:19,156 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:15:18" (1/1) ... [2021-11-20 23:15:19,157 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:15:18" (1/1) ... [2021-11-20 23:15:19,194 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:15:18" (1/1) ... [2021-11-20 23:15:19,197 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:15:18" (1/1) ... [2021-11-20 23:15:19,205 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:15:18" (1/1) ... [2021-11-20 23:15:19,216 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-20 23:15:19,217 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-20 23:15:19,217 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-20 23:15:19,217 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-20 23:15:19,218 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:15:18" (1/1) ... [2021-11-20 23:15:19,225 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 23:15:19,235 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb4d4533-a545-420e-9e94-0e6796ffcf09/bin/utaipan-TEXQjIfE4P/z3 [2021-11-20 23:15:19,250 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb4d4533-a545-420e-9e94-0e6796ffcf09/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-20 23:15:19,278 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb4d4533-a545-420e-9e94-0e6796ffcf09/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-20 23:15:19,292 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_clean_up [2021-11-20 23:15:19,292 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_clean_up [2021-11-20 23:15:19,292 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_is_valid [2021-11-20 23:15:19,292 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_is_valid [2021-11-20 23:15:19,292 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-20 23:15:19,292 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2021-11-20 23:15:19,293 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2021-11-20 23:15:19,293 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-20 23:15:19,293 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-20 23:15:19,293 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-20 23:15:19,293 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-20 23:15:19,293 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-20 23:15:19,293 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-20 23:15:19,294 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-20 23:15:19,294 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-20 23:15:19,294 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2021-11-20 23:15:19,294 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2021-11-20 23:15:19,294 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mem_release [2021-11-20 23:15:19,294 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mem_release [2021-11-20 23:15:19,294 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-11-20 23:15:19,295 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-11-20 23:15:19,295 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-20 23:15:19,295 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-20 23:15:19,295 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-20 23:15:19,295 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2021-11-20 23:15:19,295 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2021-11-20 23:15:19,295 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-20 23:15:19,296 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-20 23:15:19,514 INFO L236 CfgBuilder]: Building ICFG [2021-11-20 23:15:19,516 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-20 23:15:20,980 INFO L277 CfgBuilder]: Performing block encoding [2021-11-20 23:15:21,169 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-20 23:15:21,170 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-20 23:15:21,173 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:15:21 BoogieIcfgContainer [2021-11-20 23:15:21,173 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-20 23:15:21,175 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-20 23:15:21,175 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-20 23:15:21,179 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-20 23:15:21,179 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 11:15:15" (1/3) ... [2021-11-20 23:15:21,180 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@443747d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:15:21, skipping insertion in model container [2021-11-20 23:15:21,180 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:15:18" (2/3) ... [2021-11-20 23:15:21,180 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@443747d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:15:21, skipping insertion in model container [2021-11-20 23:15:21,181 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:15:21" (3/3) ... [2021-11-20 23:15:21,182 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_byte_buf_clean_up_harness.i [2021-11-20 23:15:21,188 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-20 23:15:21,188 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-20 23:15:21,250 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-20 23:15:21,267 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=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-20 23:15:21,269 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-20 23:15:21,288 INFO L276 IsEmpty]: Start isEmpty. Operand has 55 states, 29 states have (on average 1.1379310344827587) internal successors, (33), 30 states have internal predecessors, (33), 16 states have call successors, (16), 8 states have call predecessors, (16), 8 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2021-11-20 23:15:21,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-11-20 23:15:21,296 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:15:21,297 INFO L514 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:15:21,298 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 23:15:21,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:15:21,304 INFO L85 PathProgramCache]: Analyzing trace with hash 1295164685, now seen corresponding path program 1 times [2021-11-20 23:15:21,313 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:15:21,313 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [731134056] [2021-11-20 23:15:21,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:15:21,315 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:15:22,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:15:23,063 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-11-20 23:15:23,063 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:15:23,064 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [731134056] [2021-11-20 23:15:23,064 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [731134056] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:15:23,065 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:15:23,065 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-20 23:15:23,067 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [85740867] [2021-11-20 23:15:23,067 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:15:23,072 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-20 23:15:23,072 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:15:23,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-20 23:15:23,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2021-11-20 23:15:23,100 INFO L87 Difference]: Start difference. First operand has 55 states, 29 states have (on average 1.1379310344827587) internal successors, (33), 30 states have internal predecessors, (33), 16 states have call successors, (16), 8 states have call predecessors, (16), 8 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) Second operand has 10 states, 8 states have (on average 2.25) internal successors, (18), 8 states have internal predecessors, (18), 5 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 5 states have call predecessors, (8), 4 states have call successors, (8) [2021-11-20 23:15:24,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:15:24,664 INFO L93 Difference]: Finished difference Result 73 states and 89 transitions. [2021-11-20 23:15:24,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-20 23:15:24,666 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 2.25) internal successors, (18), 8 states have internal predecessors, (18), 5 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 5 states have call predecessors, (8), 4 states have call successors, (8) Word has length 38 [2021-11-20 23:15:24,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:15:24,678 INFO L225 Difference]: With dead ends: 73 [2021-11-20 23:15:24,678 INFO L226 Difference]: Without dead ends: 57 [2021-11-20 23:15:24,683 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=39, Invalid=143, Unknown=0, NotChecked=0, Total=182 [2021-11-20 23:15:24,688 INFO L933 BasicCegarLoop]: 43 mSDtfsCounter, 20 mSDsluCounter, 301 mSDsCounter, 0 mSdLazyCounter, 169 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 300 SdHoareTripleChecker+Invalid, 183 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 169 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2021-11-20 23:15:24,689 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [25 Valid, 300 Invalid, 183 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 169 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2021-11-20 23:15:24,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2021-11-20 23:15:24,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57. [2021-11-20 23:15:24,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 31 states have (on average 1.096774193548387) internal successors, (34), 32 states have internal predecessors, (34), 16 states have call successors, (16), 9 states have call predecessors, (16), 9 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2021-11-20 23:15:24,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 65 transitions. [2021-11-20 23:15:24,748 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 65 transitions. Word has length 38 [2021-11-20 23:15:24,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:15:24,751 INFO L470 AbstractCegarLoop]: Abstraction has 57 states and 65 transitions. [2021-11-20 23:15:24,751 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 8 states have (on average 2.25) internal successors, (18), 8 states have internal predecessors, (18), 5 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 5 states have call predecessors, (8), 4 states have call successors, (8) [2021-11-20 23:15:24,751 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 65 transitions. [2021-11-20 23:15:24,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-11-20 23:15:24,754 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:15:24,755 INFO L514 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:15:24,755 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-20 23:15:24,755 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 23:15:24,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:15:24,757 INFO L85 PathProgramCache]: Analyzing trace with hash -140008780, now seen corresponding path program 1 times [2021-11-20 23:15:24,758 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:15:24,758 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1990220209] [2021-11-20 23:15:24,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:15:24,759 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:15:25,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:15:25,745 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-11-20 23:15:25,746 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:15:25,746 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1990220209] [2021-11-20 23:15:25,746 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1990220209] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:15:25,747 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:15:25,747 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-20 23:15:25,747 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1980715701] [2021-11-20 23:15:25,747 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:15:25,749 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-20 23:15:25,749 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:15:25,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-20 23:15:25,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2021-11-20 23:15:25,751 INFO L87 Difference]: Start difference. First operand 57 states and 65 transitions. Second operand has 10 states, 8 states have (on average 2.75) internal successors, (22), 9 states have internal predecessors, (22), 6 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (9), 5 states have call predecessors, (9), 5 states have call successors, (9) [2021-11-20 23:15:27,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:15:27,163 INFO L93 Difference]: Finished difference Result 63 states and 70 transitions. [2021-11-20 23:15:27,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-20 23:15:27,164 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 2.75) internal successors, (22), 9 states have internal predecessors, (22), 6 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (9), 5 states have call predecessors, (9), 5 states have call successors, (9) Word has length 44 [2021-11-20 23:15:27,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:15:27,166 INFO L225 Difference]: With dead ends: 63 [2021-11-20 23:15:27,166 INFO L226 Difference]: Without dead ends: 61 [2021-11-20 23:15:27,167 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=39, Invalid=143, Unknown=0, NotChecked=0, Total=182 [2021-11-20 23:15:27,168 INFO L933 BasicCegarLoop]: 45 mSDtfsCounter, 24 mSDsluCounter, 272 mSDsCounter, 0 mSdLazyCounter, 149 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 279 SdHoareTripleChecker+Invalid, 166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2021-11-20 23:15:27,169 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [29 Valid, 279 Invalid, 166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 149 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2021-11-20 23:15:27,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2021-11-20 23:15:27,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2021-11-20 23:15:27,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 34 states have (on average 1.088235294117647) internal successors, (37), 35 states have internal predecessors, (37), 16 states have call successors, (16), 10 states have call predecessors, (16), 10 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2021-11-20 23:15:27,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 68 transitions. [2021-11-20 23:15:27,181 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 68 transitions. Word has length 44 [2021-11-20 23:15:27,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:15:27,182 INFO L470 AbstractCegarLoop]: Abstraction has 61 states and 68 transitions. [2021-11-20 23:15:27,183 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 8 states have (on average 2.75) internal successors, (22), 9 states have internal predecessors, (22), 6 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (9), 5 states have call predecessors, (9), 5 states have call successors, (9) [2021-11-20 23:15:27,183 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 68 transitions. [2021-11-20 23:15:27,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-11-20 23:15:27,185 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:15:27,185 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:15:27,185 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-20 23:15:27,186 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 23:15:27,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:15:27,186 INFO L85 PathProgramCache]: Analyzing trace with hash 157437977, now seen corresponding path program 1 times [2021-11-20 23:15:27,187 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:15:27,187 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2014541467] [2021-11-20 23:15:27,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:15:27,187 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:15:27,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:15:27,495 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-20 23:15:27,495 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:15:27,496 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2014541467] [2021-11-20 23:15:27,496 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2014541467] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:15:27,496 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:15:27,496 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-20 23:15:27,497 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1875958801] [2021-11-20 23:15:27,497 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:15:27,499 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-20 23:15:27,499 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:15:27,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-20 23:15:27,503 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-11-20 23:15:27,504 INFO L87 Difference]: Start difference. First operand 61 states and 68 transitions. Second operand has 8 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 7 states have internal predecessors, (23), 4 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2021-11-20 23:15:28,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:15:28,685 INFO L93 Difference]: Finished difference Result 67 states and 73 transitions. [2021-11-20 23:15:28,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-20 23:15:28,686 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 7 states have internal predecessors, (23), 4 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 50 [2021-11-20 23:15:28,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:15:28,688 INFO L225 Difference]: With dead ends: 67 [2021-11-20 23:15:28,688 INFO L226 Difference]: Without dead ends: 63 [2021-11-20 23:15:28,688 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2021-11-20 23:15:28,689 INFO L933 BasicCegarLoop]: 46 mSDtfsCounter, 9 mSDsluCounter, 281 mSDsCounter, 0 mSdLazyCounter, 142 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 286 SdHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 142 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2021-11-20 23:15:28,690 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10 Valid, 286 Invalid, 145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 142 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2021-11-20 23:15:28,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2021-11-20 23:15:28,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63. [2021-11-20 23:15:28,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 36 states have (on average 1.0555555555555556) internal successors, (38), 36 states have internal predecessors, (38), 16 states have call successors, (16), 11 states have call predecessors, (16), 10 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2021-11-20 23:15:28,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 69 transitions. [2021-11-20 23:15:28,700 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 69 transitions. Word has length 50 [2021-11-20 23:15:28,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:15:28,701 INFO L470 AbstractCegarLoop]: Abstraction has 63 states and 69 transitions. [2021-11-20 23:15:28,701 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 7 states have internal predecessors, (23), 4 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2021-11-20 23:15:28,701 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 69 transitions. [2021-11-20 23:15:28,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-11-20 23:15:28,703 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:15:28,704 INFO L514 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:15:28,704 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-20 23:15:28,704 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 23:15:28,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:15:28,705 INFO L85 PathProgramCache]: Analyzing trace with hash -536648004, now seen corresponding path program 1 times [2021-11-20 23:15:28,705 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:15:28,705 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1612258626] [2021-11-20 23:15:28,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:15:28,706 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:15:29,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:15:29,967 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-20 23:15:29,967 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:15:29,967 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1612258626] [2021-11-20 23:15:29,967 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1612258626] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:15:29,967 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:15:29,968 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-20 23:15:29,968 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [175318086] [2021-11-20 23:15:29,968 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:15:29,968 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-20 23:15:29,968 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:15:29,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-20 23:15:29,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2021-11-20 23:15:29,969 INFO L87 Difference]: Start difference. First operand 63 states and 69 transitions. Second operand has 10 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 9 states have internal predecessors, (24), 6 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 4 states have call predecessors, (11), 5 states have call successors, (11) [2021-11-20 23:15:31,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:15:31,531 INFO L93 Difference]: Finished difference Result 63 states and 69 transitions. [2021-11-20 23:15:31,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-20 23:15:31,533 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 9 states have internal predecessors, (24), 6 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 4 states have call predecessors, (11), 5 states have call successors, (11) Word has length 56 [2021-11-20 23:15:31,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:15:31,534 INFO L225 Difference]: With dead ends: 63 [2021-11-20 23:15:31,534 INFO L226 Difference]: Without dead ends: 0 [2021-11-20 23:15:31,535 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2021-11-20 23:15:31,536 INFO L933 BasicCegarLoop]: 44 mSDtfsCounter, 13 mSDsluCounter, 347 mSDsCounter, 0 mSdLazyCounter, 162 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 336 SdHoareTripleChecker+Invalid, 166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2021-11-20 23:15:31,536 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [18 Valid, 336 Invalid, 166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 162 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2021-11-20 23:15:31,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-20 23:15:31,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-20 23:15:31,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:15:31,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-20 23:15:31,538 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 56 [2021-11-20 23:15:31,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:15:31,538 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-20 23:15:31,538 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 9 states have internal predecessors, (24), 6 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 4 states have call predecessors, (11), 5 states have call successors, (11) [2021-11-20 23:15:31,538 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-20 23:15:31,539 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-20 23:15:31,543 INFO L764 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-20 23:15:31,544 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-20 23:15:31,546 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-11-20 23:15:31,685 INFO L861 garLoopResultBuilder]: At program point bounded_mallocENTRY(lines 6876 6881) the Hoare annotation is: true [2021-11-20 23:15:31,686 INFO L858 garLoopResultBuilder]: For program point L6877-1(lines 6877 6879) no Hoare annotation was computed. [2021-11-20 23:15:31,686 INFO L861 garLoopResultBuilder]: At program point L6877(lines 6877 6879) the Hoare annotation is: true [2021-11-20 23:15:31,686 INFO L858 garLoopResultBuilder]: For program point bounded_mallocEXIT(lines 6876 6881) no Hoare annotation was computed. [2021-11-20 23:15:31,686 INFO L861 garLoopResultBuilder]: At program point aws_byte_buf_is_validENTRY(lines 7179 7185) the Hoare annotation is: true [2021-11-20 23:15:31,687 INFO L858 garLoopResultBuilder]: For program point aws_byte_buf_is_validEXIT(lines 7179 7185) no Hoare annotation was computed. [2021-11-20 23:15:31,687 INFO L858 garLoopResultBuilder]: For program point nondet_boolEXIT(line 261) no Hoare annotation was computed. [2021-11-20 23:15:31,687 INFO L861 garLoopResultBuilder]: At program point nondet_boolENTRY(line 261) the Hoare annotation is: true [2021-11-20 23:15:31,687 INFO L858 garLoopResultBuilder]: For program point L7056-1(lines 7056 7058) no Hoare annotation was computed. [2021-11-20 23:15:31,687 INFO L861 garLoopResultBuilder]: At program point L7056(lines 7056 7058) the Hoare annotation is: true [2021-11-20 23:15:31,687 INFO L858 garLoopResultBuilder]: For program point aws_mem_releaseEXIT(lines 7055 7068) no Hoare annotation was computed. [2021-11-20 23:15:31,688 INFO L861 garLoopResultBuilder]: At program point aws_mem_releaseENTRY(lines 7055 7068) the Hoare annotation is: true [2021-11-20 23:15:31,688 INFO L858 garLoopResultBuilder]: For program point L7059-1(lines 7059 7061) no Hoare annotation was computed. [2021-11-20 23:15:31,688 INFO L861 garLoopResultBuilder]: At program point L7059(lines 7059 7061) the Hoare annotation is: true [2021-11-20 23:15:31,688 INFO L861 garLoopResultBuilder]: At program point assume_abort_if_notENTRY(lines 210 212) the Hoare annotation is: true [2021-11-20 23:15:31,688 INFO L858 garLoopResultBuilder]: For program point assume_abort_if_notEXIT(lines 210 212) no Hoare annotation was computed. [2021-11-20 23:15:31,689 INFO L858 garLoopResultBuilder]: For program point can_fail_allocatorEXIT(lines 6883 6885) no Hoare annotation was computed. [2021-11-20 23:15:31,689 INFO L861 garLoopResultBuilder]: At program point can_fail_allocatorENTRY(lines 6883 6885) the Hoare annotation is: true [2021-11-20 23:15:31,689 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-11-20 23:15:31,689 INFO L858 garLoopResultBuilder]: For program point L8770-1(lines 8770 8772) no Hoare annotation was computed. [2021-11-20 23:15:31,689 INFO L858 garLoopResultBuilder]: For program point L6613-1(line 6613) no Hoare annotation was computed. [2021-11-20 23:15:31,689 INFO L854 garLoopResultBuilder]: At program point L6613(line 6613) the Hoare annotation is: (and (= |ULTIMATE.start_aws_byte_buf_clean_up_harness_~#buf~3#1.offset| 0) (= |ULTIMATE.start_ensure_byte_buf_has_allocated_buffer_member_~buf#1.offset| 0)) [2021-11-20 23:15:31,690 INFO L854 garLoopResultBuilder]: At program point L8773(lines 8773 8775) the Hoare annotation is: (let ((.cse1 (+ 8 |ULTIMATE.start_aws_byte_buf_clean_up_harness_~#buf~3#1.offset|)) (.cse3 (select |#memory_int| |ULTIMATE.start_aws_byte_buf_clean_up_harness_~#buf~3#1.base|)) (.cse2 (select |#memory_$Pointer$.base| |ULTIMATE.start_aws_byte_buf_clean_up_harness_~#buf~3#1.base|)) (.cse0 (select |#memory_$Pointer$.offset| |ULTIMATE.start_aws_byte_buf_clean_up_harness_~#buf~3#1.base|)) (.cse4 (+ |ULTIMATE.start_aws_byte_buf_clean_up_harness_~#buf~3#1.offset| 24))) (and (= 0 (select .cse0 .cse1)) (= (select .cse2 .cse1) 0) (= (select .cse3 (+ 16 |ULTIMATE.start_aws_byte_buf_clean_up_harness_~#buf~3#1.offset|)) 0) (= 0 |ULTIMATE.start_aws_byte_buf_clean_up_harness_#t~mem1152#1.offset|) (= |ULTIMATE.start_aws_byte_buf_clean_up_harness_#t~mem1152#1.base| 0) (= (select .cse3 |ULTIMATE.start_aws_byte_buf_clean_up_harness_~#buf~3#1.offset|) 0) (= |ULTIMATE.start_aws_byte_buf_clean_up_harness_~#buf~3#1.offset| 0) (= (select .cse2 .cse4) 0) (= |ULTIMATE.start_ensure_byte_buf_has_allocated_buffer_member_~buf#1.offset| 0) (= (select .cse0 .cse4) 0))) [2021-11-20 23:15:31,690 INFO L858 garLoopResultBuilder]: For program point L8773-1(lines 8773 8775) no Hoare annotation was computed. [2021-11-20 23:15:31,690 INFO L854 garLoopResultBuilder]: At program point L8777(line 8777) the Hoare annotation is: (let ((.cse1 (+ 8 |ULTIMATE.start_aws_byte_buf_clean_up_harness_~#buf~3#1.offset|)) (.cse3 (select |#memory_int| |ULTIMATE.start_aws_byte_buf_clean_up_harness_~#buf~3#1.base|)) (.cse2 (select |#memory_$Pointer$.base| |ULTIMATE.start_aws_byte_buf_clean_up_harness_~#buf~3#1.base|)) (.cse0 (select |#memory_$Pointer$.offset| |ULTIMATE.start_aws_byte_buf_clean_up_harness_~#buf~3#1.base|)) (.cse4 (+ |ULTIMATE.start_aws_byte_buf_clean_up_harness_~#buf~3#1.offset| 24))) (and (= 0 (select .cse0 .cse1)) (= (select .cse2 .cse1) 0) (= (select .cse3 (+ 16 |ULTIMATE.start_aws_byte_buf_clean_up_harness_~#buf~3#1.offset|)) 0) (= (select .cse3 |ULTIMATE.start_aws_byte_buf_clean_up_harness_~#buf~3#1.offset|) 0) (= |ULTIMATE.start_aws_byte_buf_clean_up_harness_~#buf~3#1.offset| 0) (= (select .cse2 .cse4) 0) (= (* 18446744073709551616 (div |ULTIMATE.start_aws_byte_buf_clean_up_harness_#t~mem1154#1| 18446744073709551616)) |ULTIMATE.start_aws_byte_buf_clean_up_harness_#t~mem1154#1|) (= |ULTIMATE.start_ensure_byte_buf_has_allocated_buffer_member_~buf#1.offset| 0) (= (select .cse0 .cse4) 0))) [2021-11-20 23:15:31,690 INFO L854 garLoopResultBuilder]: At program point L8777-1(line 8777) the Hoare annotation is: (let ((.cse0 (+ |ULTIMATE.start_aws_byte_buf_clean_up_harness_~#buf~3#1.offset| 24))) (and (= |ULTIMATE.start_aws_byte_buf_clean_up_harness_~#buf~3#1.offset| 0) (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_aws_byte_buf_clean_up_harness_~#buf~3#1.base|) .cse0) 0) (= |ULTIMATE.start_ensure_byte_buf_has_allocated_buffer_member_~buf#1.offset| 0) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_aws_byte_buf_clean_up_harness_~#buf~3#1.base|) .cse0) 0))) [2021-11-20 23:15:31,691 INFO L858 garLoopResultBuilder]: For program point L8767-2(line 8767) no Hoare annotation was computed. [2021-11-20 23:15:31,691 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-11-20 23:15:31,691 INFO L854 garLoopResultBuilder]: At program point L8769(line 8769) the Hoare annotation is: (and (= |ULTIMATE.start_aws_byte_buf_clean_up_harness_~#buf~3#1.offset| 0) (= |ULTIMATE.start_ensure_byte_buf_has_allocated_buffer_member_~buf#1.offset| 0)) [2021-11-20 23:15:31,691 INFO L858 garLoopResultBuilder]: For program point L8769-1(line 8769) no Hoare annotation was computed. [2021-11-20 23:15:31,691 INFO L854 garLoopResultBuilder]: At program point L8767(line 8767) the Hoare annotation is: (and (= |ULTIMATE.start_aws_byte_buf_clean_up_harness_~#buf~3#1.offset| 0) (= |ULTIMATE.start_ensure_byte_buf_has_allocated_buffer_member_~buf#1.offset| 0)) [2021-11-20 23:15:31,692 INFO L854 garLoopResultBuilder]: At program point L8767-1(line 8767) the Hoare annotation is: (and (= |ULTIMATE.start_aws_byte_buf_clean_up_harness_~#buf~3#1.offset| 0) (= |ULTIMATE.start_ensure_byte_buf_has_allocated_buffer_member_~buf#1.offset| 0)) [2021-11-20 23:15:31,692 INFO L854 garLoopResultBuilder]: At program point L6610(line 6610) the Hoare annotation is: (and (= |ULTIMATE.start_aws_byte_buf_clean_up_harness_~#buf~3#1.offset| 0) (= |ULTIMATE.start_ensure_byte_buf_has_allocated_buffer_member_~buf#1.offset| 0)) [2021-11-20 23:15:31,692 INFO L858 garLoopResultBuilder]: For program point L6612-1(line 6612) no Hoare annotation was computed. [2021-11-20 23:15:31,692 INFO L854 garLoopResultBuilder]: At program point L6612(line 6612) the Hoare annotation is: (and (= |ULTIMATE.start_aws_byte_buf_clean_up_harness_~#buf~3#1.offset| 0) (= |ULTIMATE.start_ensure_byte_buf_has_allocated_buffer_member_~buf#1.offset| 0)) [2021-11-20 23:15:31,692 INFO L858 garLoopResultBuilder]: For program point L6610-3(lines 6610 6612) no Hoare annotation was computed. [2021-11-20 23:15:31,693 INFO L858 garLoopResultBuilder]: For program point L6610-1(lines 6610 6612) no Hoare annotation was computed. [2021-11-20 23:15:31,693 INFO L854 garLoopResultBuilder]: At program point L8770(lines 8770 8772) the Hoare annotation is: (let ((.cse1 (+ 8 |ULTIMATE.start_aws_byte_buf_clean_up_harness_~#buf~3#1.offset|)) (.cse3 (select |#memory_int| |ULTIMATE.start_aws_byte_buf_clean_up_harness_~#buf~3#1.base|)) (.cse2 (select |#memory_$Pointer$.base| |ULTIMATE.start_aws_byte_buf_clean_up_harness_~#buf~3#1.base|)) (.cse0 (select |#memory_$Pointer$.offset| |ULTIMATE.start_aws_byte_buf_clean_up_harness_~#buf~3#1.base|)) (.cse4 (+ |ULTIMATE.start_aws_byte_buf_clean_up_harness_~#buf~3#1.offset| 24))) (and (= 0 (select .cse0 .cse1)) (= (select .cse2 .cse1) 0) (= (select .cse3 (+ 16 |ULTIMATE.start_aws_byte_buf_clean_up_harness_~#buf~3#1.offset|)) 0) (= |ULTIMATE.start_aws_byte_buf_clean_up_harness_#t~mem1151#1.offset| 0) (= (select .cse3 |ULTIMATE.start_aws_byte_buf_clean_up_harness_~#buf~3#1.offset|) 0) (= |ULTIMATE.start_aws_byte_buf_clean_up_harness_~#buf~3#1.offset| 0) (= (select .cse2 .cse4) 0) (= |ULTIMATE.start_aws_byte_buf_clean_up_harness_#t~mem1151#1.base| 0) (= |ULTIMATE.start_ensure_byte_buf_has_allocated_buffer_member_~buf#1.offset| 0) (= (select .cse0 .cse4) 0))) [2021-11-20 23:15:31,693 INFO L854 garLoopResultBuilder]: At program point L8776(line 8776) the Hoare annotation is: (let ((.cse1 (+ 8 |ULTIMATE.start_aws_byte_buf_clean_up_harness_~#buf~3#1.offset|)) (.cse3 (select |#memory_int| |ULTIMATE.start_aws_byte_buf_clean_up_harness_~#buf~3#1.base|)) (.cse2 (select |#memory_$Pointer$.base| |ULTIMATE.start_aws_byte_buf_clean_up_harness_~#buf~3#1.base|)) (.cse0 (select |#memory_$Pointer$.offset| |ULTIMATE.start_aws_byte_buf_clean_up_harness_~#buf~3#1.base|)) (.cse4 (+ |ULTIMATE.start_aws_byte_buf_clean_up_harness_~#buf~3#1.offset| 24))) (and (= |ULTIMATE.start_aws_byte_buf_clean_up_harness_#t~mem1153#1| 0) (= 0 (select .cse0 .cse1)) (= (select .cse2 .cse1) 0) (= (select .cse3 (+ 16 |ULTIMATE.start_aws_byte_buf_clean_up_harness_~#buf~3#1.offset|)) 0) (= (select .cse3 |ULTIMATE.start_aws_byte_buf_clean_up_harness_~#buf~3#1.offset|) 0) (= |ULTIMATE.start_aws_byte_buf_clean_up_harness_~#buf~3#1.offset| 0) (= (select .cse2 .cse4) 0) (= |ULTIMATE.start_ensure_byte_buf_has_allocated_buffer_member_~buf#1.offset| 0) (= (select .cse0 .cse4) 0))) [2021-11-20 23:15:31,693 INFO L858 garLoopResultBuilder]: For program point L8776-1(line 8776) no Hoare annotation was computed. [2021-11-20 23:15:31,694 INFO L861 garLoopResultBuilder]: At program point aws_byte_buf_clean_upENTRY(lines 7203 7216) the Hoare annotation is: true [2021-11-20 23:15:31,694 INFO L858 garLoopResultBuilder]: For program point L7205-4(lines 7205 7207) no Hoare annotation was computed. [2021-11-20 23:15:31,694 INFO L854 garLoopResultBuilder]: At program point L7206(line 7206) the Hoare annotation is: (and (= |aws_byte_buf_clean_up_#in~buf.offset| aws_byte_buf_clean_up_~buf.offset) (= |aws_byte_buf_clean_up_#in~buf.base| aws_byte_buf_clean_up_~buf.base)) [2021-11-20 23:15:31,694 INFO L858 garLoopResultBuilder]: For program point L7204-2(line 7204) no Hoare annotation was computed. [2021-11-20 23:15:31,694 INFO L854 garLoopResultBuilder]: At program point L7204-1(line 7204) the Hoare annotation is: (and (= |aws_byte_buf_clean_up_#in~buf.offset| aws_byte_buf_clean_up_~buf.offset) (= |aws_byte_buf_clean_up_#in~buf.base| aws_byte_buf_clean_up_~buf.base)) [2021-11-20 23:15:31,694 INFO L858 garLoopResultBuilder]: For program point L7205-2(lines 7205 7207) no Hoare annotation was computed. [2021-11-20 23:15:31,695 INFO L854 garLoopResultBuilder]: At program point L7204(line 7204) the Hoare annotation is: (and (= |aws_byte_buf_clean_up_#in~buf.offset| aws_byte_buf_clean_up_~buf.offset) (= |aws_byte_buf_clean_up_#in~buf.base| aws_byte_buf_clean_up_~buf.base)) [2021-11-20 23:15:31,695 INFO L858 garLoopResultBuilder]: For program point aws_byte_buf_clean_upEXIT(lines 7203 7216) no Hoare annotation was computed. [2021-11-20 23:15:31,695 INFO L858 garLoopResultBuilder]: For program point L7206-1(line 7206) no Hoare annotation was computed. [2021-11-20 23:15:31,695 INFO L858 garLoopResultBuilder]: For program point L223(line 223) no Hoare annotation was computed. [2021-11-20 23:15:31,695 INFO L861 garLoopResultBuilder]: At program point __VERIFIER_assertENTRY(lines 222 224) the Hoare annotation is: true [2021-11-20 23:15:31,696 INFO L858 garLoopResultBuilder]: For program point L223-1(line 223) no Hoare annotation was computed. [2021-11-20 23:15:31,696 INFO L858 garLoopResultBuilder]: For program point L223-3(lines 222 224) no Hoare annotation was computed. [2021-11-20 23:15:31,696 INFO L858 garLoopResultBuilder]: For program point __VERIFIER_assertEXIT(lines 222 224) no Hoare annotation was computed. [2021-11-20 23:15:31,696 INFO L858 garLoopResultBuilder]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 223) no Hoare annotation was computed. [2021-11-20 23:15:31,699 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2021-11-20 23:15:31,701 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-20 23:15:31,709 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-11-20 23:15:31,710 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2021-11-20 23:15:31,713 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-11-20 23:15:31,714 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2021-11-20 23:15:31,715 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 11:15:31 BoogieIcfgContainer [2021-11-20 23:15:31,715 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-20 23:15:31,716 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-20 23:15:31,716 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-20 23:15:31,716 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-20 23:15:31,717 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:15:21" (3/4) ... [2021-11-20 23:15:31,719 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-20 23:15:31,725 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure bounded_malloc [2021-11-20 23:15:31,725 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure aws_byte_buf_is_valid [2021-11-20 23:15:31,725 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure nondet_bool [2021-11-20 23:15:31,726 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure aws_mem_release [2021-11-20 23:15:31,726 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2021-11-20 23:15:31,726 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure aws_byte_buf_clean_up [2021-11-20 23:15:31,726 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2021-11-20 23:15:31,726 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure can_fail_allocator [2021-11-20 23:15:31,741 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 137 nodes and edges [2021-11-20 23:15:31,743 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 62 nodes and edges [2021-11-20 23:15:31,745 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 27 nodes and edges [2021-11-20 23:15:31,747 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2021-11-20 23:15:31,748 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2021-11-20 23:15:31,750 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2021-11-20 23:15:31,751 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-11-20 23:15:31,753 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-20 23:15:32,652 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb4d4533-a545-420e-9e94-0e6796ffcf09/bin/utaipan-TEXQjIfE4P/witness.graphml [2021-11-20 23:15:32,652 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-20 23:15:32,653 INFO L158 Benchmark]: Toolchain (without parser) took 16673.45ms. Allocated memory was 96.5MB in the beginning and 312.5MB in the end (delta: 216.0MB). Free memory was 51.6MB in the beginning and 210.2MB in the end (delta: -158.7MB). Peak memory consumption was 221.5MB. Max. memory is 16.1GB. [2021-11-20 23:15:32,653 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 96.5MB. Free memory was 66.2MB in the beginning and 66.2MB in the end (delta: 28.2kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-20 23:15:32,654 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2883.20ms. Allocated memory was 96.5MB in the beginning and 167.8MB in the end (delta: 71.3MB). Free memory was 51.3MB in the beginning and 113.4MB in the end (delta: -62.1MB). Peak memory consumption was 66.9MB. Max. memory is 16.1GB. [2021-11-20 23:15:32,654 INFO L158 Benchmark]: Boogie Procedure Inliner took 268.65ms. Allocated memory is still 167.8MB. Free memory was 113.4MB in the beginning and 102.0MB in the end (delta: 11.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-20 23:15:32,655 INFO L158 Benchmark]: Boogie Preprocessor took 81.55ms. Allocated memory is still 167.8MB. Free memory was 102.0MB in the beginning and 95.7MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-11-20 23:15:32,655 INFO L158 Benchmark]: RCFGBuilder took 1956.73ms. Allocated memory is still 167.8MB. Free memory was 95.7MB in the beginning and 102.9MB in the end (delta: -7.2MB). Peak memory consumption was 43.8MB. Max. memory is 16.1GB. [2021-11-20 23:15:32,655 INFO L158 Benchmark]: TraceAbstraction took 10540.27ms. Allocated memory was 167.8MB in the beginning and 260.0MB in the end (delta: 92.3MB). Free memory was 101.9MB in the beginning and 103.1MB in the end (delta: -1.2MB). Peak memory consumption was 92.1MB. Max. memory is 16.1GB. [2021-11-20 23:15:32,656 INFO L158 Benchmark]: Witness Printer took 936.40ms. Allocated memory was 260.0MB in the beginning and 312.5MB in the end (delta: 52.4MB). Free memory was 103.1MB in the beginning and 210.2MB in the end (delta: -107.1MB). Peak memory consumption was 108.9MB. Max. memory is 16.1GB. [2021-11-20 23:15:32,658 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 96.5MB. Free memory was 66.2MB in the beginning and 66.2MB in the end (delta: 28.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2883.20ms. Allocated memory was 96.5MB in the beginning and 167.8MB in the end (delta: 71.3MB). Free memory was 51.3MB in the beginning and 113.4MB in the end (delta: -62.1MB). Peak memory consumption was 66.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 268.65ms. Allocated memory is still 167.8MB. Free memory was 113.4MB in the beginning and 102.0MB in the end (delta: 11.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Preprocessor took 81.55ms. Allocated memory is still 167.8MB. Free memory was 102.0MB in the beginning and 95.7MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * RCFGBuilder took 1956.73ms. Allocated memory is still 167.8MB. Free memory was 95.7MB in the beginning and 102.9MB in the end (delta: -7.2MB). Peak memory consumption was 43.8MB. Max. memory is 16.1GB. * TraceAbstraction took 10540.27ms. Allocated memory was 167.8MB in the beginning and 260.0MB in the end (delta: 92.3MB). Free memory was 101.9MB in the beginning and 103.1MB in the end (delta: -1.2MB). Peak memory consumption was 92.1MB. Max. memory is 16.1GB. * Witness Printer took 936.40ms. Allocated memory was 260.0MB in the beginning and 312.5MB in the end (delta: 52.4MB). Free memory was 103.1MB in the beginning and 210.2MB in the end (delta: -107.1MB). Peak memory consumption was 108.9MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 223]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 9 procedures, 55 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 10.5s, OverallIterations: 4, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 5.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 82 SdHoareTripleChecker+Valid, 5.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 66 mSDsluCounter, 1201 SdHoareTripleChecker+Invalid, 5.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1201 mSDsCounter, 38 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 622 IncrementalHoareTripleChecker+Invalid, 660 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 38 mSolverCounterUnsat, 178 mSDtfsCounter, 622 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 54 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=63occurred in iteration=3, InterpolantAutomatonStates: 35, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 25 LocationsWithAnnotation, 36 PreInvPairs, 40 NumberOfFragments, 357 HoareAnnotationTreeSize, 36 FomulaSimplifications, 45 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 25 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 2.8s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 188 NumberOfCodeBlocks, 188 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 184 ConstructedInterpolants, 0 QuantifiedInterpolants, 814 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 60/60 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: 8777]: Loop Invariant [2021-11-20 23:15:32,667 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-11-20 23:15:32,667 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2021-11-20 23:15:32,668 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-11-20 23:15:32,668 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset Derived loop invariant: ((buf == 0 && #memory_$Pointer$[buf][buf + 24] == 0) && buf == 0) && #memory_$Pointer$[buf][buf + 24] == 0 RESULT: Ultimate proved your program to be correct! [2021-11-20 23:15:32,706 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb4d4533-a545-420e-9e94-0e6796ffcf09/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE