./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/busybox-1.22.0/stty-2.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 527bcce2 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f290e414-7138-44a8-8066-bb450741466a/bin/uautomizer-verify-bycVGegfSx/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f290e414-7138-44a8-8066-bb450741466a/bin/uautomizer-verify-bycVGegfSx/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f290e414-7138-44a8-8066-bb450741466a/bin/uautomizer-verify-bycVGegfSx/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f290e414-7138-44a8-8066-bb450741466a/bin/uautomizer-verify-bycVGegfSx/config/AutomizerReach.xml -i ../../sv-benchmarks/c/busybox-1.22.0/stty-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f290e414-7138-44a8-8066-bb450741466a/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f290e414-7138-44a8-8066-bb450741466a/bin/uautomizer-verify-bycVGegfSx --witnessprinter.witness.filename witness --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 407efb5d110f0d8a5006d45a10a4353022c10a59bc24e54b714ee2eb1689c810 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 22:07:45,183 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 22:07:45,296 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f290e414-7138-44a8-8066-bb450741466a/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Reach-64bit-Automizer_Default.epf [2023-11-21 22:07:45,304 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 22:07:45,305 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 22:07:45,333 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 22:07:45,334 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 22:07:45,335 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 22:07:45,336 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-21 22:07:45,337 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-21 22:07:45,337 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 22:07:45,338 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 22:07:45,339 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 22:07:45,340 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 22:07:45,340 INFO L153 SettingsManager]: * Use SBE=true [2023-11-21 22:07:45,341 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 22:07:45,342 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 22:07:45,342 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 22:07:45,343 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 22:07:45,343 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 22:07:45,344 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 22:07:45,345 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 22:07:45,345 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 22:07:45,346 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 22:07:45,346 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 22:07:45,347 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-21 22:07:45,347 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-21 22:07:45,348 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 22:07:45,348 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:07:45,349 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 22:07:45,350 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 22:07:45,350 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 22:07:45,351 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-21 22:07:45,351 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 22:07:45,352 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 22:07:45,353 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-21 22:07:45,353 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 22:07:45,354 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-21 22:07:45,354 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 22:07:45,355 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_f290e414-7138-44a8-8066-bb450741466a/bin/uautomizer-verify-bycVGegfSx/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f290e414-7138-44a8-8066-bb450741466a/bin/uautomizer-verify-bycVGegfSx Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 407efb5d110f0d8a5006d45a10a4353022c10a59bc24e54b714ee2eb1689c810 [2023-11-21 22:07:45,727 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 22:07:45,764 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 22:07:45,767 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 22:07:45,770 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 22:07:45,771 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 22:07:45,773 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f290e414-7138-44a8-8066-bb450741466a/bin/uautomizer-verify-bycVGegfSx/../../sv-benchmarks/c/busybox-1.22.0/stty-2.i [2023-11-21 22:07:48,974 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 22:07:49,498 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 22:07:49,499 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f290e414-7138-44a8-8066-bb450741466a/sv-benchmarks/c/busybox-1.22.0/stty-2.i [2023-11-21 22:07:49,548 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f290e414-7138-44a8-8066-bb450741466a/bin/uautomizer-verify-bycVGegfSx/data/a5ea59756/a543fc43a5f64b5da714e2c58b7517c7/FLAG71083b907 [2023-11-21 22:07:49,567 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f290e414-7138-44a8-8066-bb450741466a/bin/uautomizer-verify-bycVGegfSx/data/a5ea59756/a543fc43a5f64b5da714e2c58b7517c7 [2023-11-21 22:07:49,574 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 22:07:49,575 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 22:07:49,577 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 22:07:49,577 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 22:07:49,583 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 22:07:49,585 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:07:49" (1/1) ... [2023-11-21 22:07:49,587 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1dad375 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:07:49, skipping insertion in model container [2023-11-21 22:07:49,587 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:07:49" (1/1) ... [2023-11-21 22:07:49,809 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 22:07:51,901 WARN L240 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_f290e414-7138-44a8-8066-bb450741466a/sv-benchmarks/c/busybox-1.22.0/stty-2.i[132222,132235] [2023-11-21 22:07:51,905 WARN L240 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_f290e414-7138-44a8-8066-bb450741466a/sv-benchmarks/c/busybox-1.22.0/stty-2.i[132302,132315] [2023-11-21 22:07:51,912 WARN L240 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_f290e414-7138-44a8-8066-bb450741466a/sv-benchmarks/c/busybox-1.22.0/stty-2.i[133183,133196] [2023-11-21 22:07:51,913 WARN L240 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_f290e414-7138-44a8-8066-bb450741466a/sv-benchmarks/c/busybox-1.22.0/stty-2.i[133263,133276] [2023-11-21 22:07:51,915 WARN L240 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_f290e414-7138-44a8-8066-bb450741466a/sv-benchmarks/c/busybox-1.22.0/stty-2.i[133537,133550] [2023-11-21 22:07:51,915 WARN L240 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_f290e414-7138-44a8-8066-bb450741466a/sv-benchmarks/c/busybox-1.22.0/stty-2.i[133633,133646] [2023-11-21 22:07:51,916 WARN L240 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_f290e414-7138-44a8-8066-bb450741466a/sv-benchmarks/c/busybox-1.22.0/stty-2.i[133802,133815] [2023-11-21 22:07:51,917 WARN L240 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_f290e414-7138-44a8-8066-bb450741466a/sv-benchmarks/c/busybox-1.22.0/stty-2.i[133890,133903] [2023-11-21 22:07:51,919 WARN L240 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_f290e414-7138-44a8-8066-bb450741466a/sv-benchmarks/c/busybox-1.22.0/stty-2.i[134070,134083] [2023-11-21 22:07:51,919 WARN L240 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_f290e414-7138-44a8-8066-bb450741466a/sv-benchmarks/c/busybox-1.22.0/stty-2.i[134158,134171] [2023-11-21 22:07:51,921 WARN L240 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_f290e414-7138-44a8-8066-bb450741466a/sv-benchmarks/c/busybox-1.22.0/stty-2.i[134417,134430] [2023-11-21 22:07:51,921 WARN L240 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_f290e414-7138-44a8-8066-bb450741466a/sv-benchmarks/c/busybox-1.22.0/stty-2.i[134513,134526] [2023-11-21 22:07:51,923 WARN L240 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_f290e414-7138-44a8-8066-bb450741466a/sv-benchmarks/c/busybox-1.22.0/stty-2.i[134721,134734] [2023-11-21 22:07:51,923 WARN L240 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_f290e414-7138-44a8-8066-bb450741466a/sv-benchmarks/c/busybox-1.22.0/stty-2.i[134809,134822] [2023-11-21 22:07:51,925 WARN L240 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_f290e414-7138-44a8-8066-bb450741466a/sv-benchmarks/c/busybox-1.22.0/stty-2.i[135109,135122] [2023-11-21 22:07:51,926 WARN L240 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_f290e414-7138-44a8-8066-bb450741466a/sv-benchmarks/c/busybox-1.22.0/stty-2.i[135213,135226] [2023-11-21 22:07:51,928 WARN L240 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_f290e414-7138-44a8-8066-bb450741466a/sv-benchmarks/c/busybox-1.22.0/stty-2.i[135727,135740] [2023-11-21 22:07:51,929 WARN L240 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_f290e414-7138-44a8-8066-bb450741466a/sv-benchmarks/c/busybox-1.22.0/stty-2.i[135831,135844] [2023-11-21 22:07:51,931 WARN L240 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_f290e414-7138-44a8-8066-bb450741466a/sv-benchmarks/c/busybox-1.22.0/stty-2.i[136277,136290] [2023-11-21 22:07:51,941 WARN L240 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_f290e414-7138-44a8-8066-bb450741466a/sv-benchmarks/c/busybox-1.22.0/stty-2.i[136389,136402] [2023-11-21 22:07:51,954 WARN L240 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_f290e414-7138-44a8-8066-bb450741466a/sv-benchmarks/c/busybox-1.22.0/stty-2.i[139562,139575] [2023-11-21 22:07:51,991 WARN L240 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_f290e414-7138-44a8-8066-bb450741466a/sv-benchmarks/c/busybox-1.22.0/stty-2.i[143855,143868] [2023-11-21 22:07:51,992 WARN L240 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_f290e414-7138-44a8-8066-bb450741466a/sv-benchmarks/c/busybox-1.22.0/stty-2.i[143935,143948] [2023-11-21 22:07:51,994 WARN L240 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_f290e414-7138-44a8-8066-bb450741466a/sv-benchmarks/c/busybox-1.22.0/stty-2.i[144229,144242] [2023-11-21 22:07:51,995 WARN L240 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_f290e414-7138-44a8-8066-bb450741466a/sv-benchmarks/c/busybox-1.22.0/stty-2.i[144309,144322] [2023-11-21 22:07:51,996 WARN L240 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_f290e414-7138-44a8-8066-bb450741466a/sv-benchmarks/c/busybox-1.22.0/stty-2.i[144543,144556] [2023-11-21 22:07:51,996 WARN L240 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_f290e414-7138-44a8-8066-bb450741466a/sv-benchmarks/c/busybox-1.22.0/stty-2.i[144631,144644] [2023-11-21 22:07:51,998 WARN L240 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_f290e414-7138-44a8-8066-bb450741466a/sv-benchmarks/c/busybox-1.22.0/stty-2.i[144996,145009] [2023-11-21 22:07:51,999 WARN L240 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_f290e414-7138-44a8-8066-bb450741466a/sv-benchmarks/c/busybox-1.22.0/stty-2.i[145092,145105] [2023-11-21 22:07:52,008 WARN L240 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_f290e414-7138-44a8-8066-bb450741466a/sv-benchmarks/c/busybox-1.22.0/stty-2.i[148088,148101] [2023-11-21 22:07:52,091 WARN L240 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_f290e414-7138-44a8-8066-bb450741466a/sv-benchmarks/c/busybox-1.22.0/stty-2.i[175852,175865] [2023-11-21 22:07:52,187 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:07:52,256 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 22:07:52,357 WARN L240 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_f290e414-7138-44a8-8066-bb450741466a/sv-benchmarks/c/busybox-1.22.0/stty-2.i[132222,132235] [2023-11-21 22:07:52,358 WARN L240 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_f290e414-7138-44a8-8066-bb450741466a/sv-benchmarks/c/busybox-1.22.0/stty-2.i[132302,132315] [2023-11-21 22:07:52,361 WARN L240 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_f290e414-7138-44a8-8066-bb450741466a/sv-benchmarks/c/busybox-1.22.0/stty-2.i[133183,133196] [2023-11-21 22:07:52,362 WARN L240 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_f290e414-7138-44a8-8066-bb450741466a/sv-benchmarks/c/busybox-1.22.0/stty-2.i[133263,133276] [2023-11-21 22:07:52,363 WARN L240 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_f290e414-7138-44a8-8066-bb450741466a/sv-benchmarks/c/busybox-1.22.0/stty-2.i[133537,133550] [2023-11-21 22:07:52,364 WARN L240 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_f290e414-7138-44a8-8066-bb450741466a/sv-benchmarks/c/busybox-1.22.0/stty-2.i[133633,133646] [2023-11-21 22:07:52,365 WARN L240 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_f290e414-7138-44a8-8066-bb450741466a/sv-benchmarks/c/busybox-1.22.0/stty-2.i[133802,133815] [2023-11-21 22:07:52,365 WARN L240 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_f290e414-7138-44a8-8066-bb450741466a/sv-benchmarks/c/busybox-1.22.0/stty-2.i[133890,133903] [2023-11-21 22:07:52,366 WARN L240 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_f290e414-7138-44a8-8066-bb450741466a/sv-benchmarks/c/busybox-1.22.0/stty-2.i[134070,134083] [2023-11-21 22:07:52,367 WARN L240 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_f290e414-7138-44a8-8066-bb450741466a/sv-benchmarks/c/busybox-1.22.0/stty-2.i[134158,134171] [2023-11-21 22:07:52,368 WARN L240 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_f290e414-7138-44a8-8066-bb450741466a/sv-benchmarks/c/busybox-1.22.0/stty-2.i[134417,134430] [2023-11-21 22:07:52,369 WARN L240 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_f290e414-7138-44a8-8066-bb450741466a/sv-benchmarks/c/busybox-1.22.0/stty-2.i[134513,134526] [2023-11-21 22:07:52,370 WARN L240 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_f290e414-7138-44a8-8066-bb450741466a/sv-benchmarks/c/busybox-1.22.0/stty-2.i[134721,134734] [2023-11-21 22:07:52,371 WARN L240 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_f290e414-7138-44a8-8066-bb450741466a/sv-benchmarks/c/busybox-1.22.0/stty-2.i[134809,134822] [2023-11-21 22:07:52,372 WARN L240 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_f290e414-7138-44a8-8066-bb450741466a/sv-benchmarks/c/busybox-1.22.0/stty-2.i[135109,135122] [2023-11-21 22:07:52,372 WARN L240 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_f290e414-7138-44a8-8066-bb450741466a/sv-benchmarks/c/busybox-1.22.0/stty-2.i[135213,135226] [2023-11-21 22:07:52,374 WARN L240 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_f290e414-7138-44a8-8066-bb450741466a/sv-benchmarks/c/busybox-1.22.0/stty-2.i[135727,135740] [2023-11-21 22:07:52,375 WARN L240 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_f290e414-7138-44a8-8066-bb450741466a/sv-benchmarks/c/busybox-1.22.0/stty-2.i[135831,135844] [2023-11-21 22:07:52,376 WARN L240 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_f290e414-7138-44a8-8066-bb450741466a/sv-benchmarks/c/busybox-1.22.0/stty-2.i[136277,136290] [2023-11-21 22:07:52,377 WARN L240 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_f290e414-7138-44a8-8066-bb450741466a/sv-benchmarks/c/busybox-1.22.0/stty-2.i[136389,136402] [2023-11-21 22:07:52,385 WARN L240 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_f290e414-7138-44a8-8066-bb450741466a/sv-benchmarks/c/busybox-1.22.0/stty-2.i[139562,139575] [2023-11-21 22:07:52,396 WARN L240 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_f290e414-7138-44a8-8066-bb450741466a/sv-benchmarks/c/busybox-1.22.0/stty-2.i[143855,143868] [2023-11-21 22:07:52,396 WARN L240 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_f290e414-7138-44a8-8066-bb450741466a/sv-benchmarks/c/busybox-1.22.0/stty-2.i[143935,143948] [2023-11-21 22:07:52,397 WARN L240 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_f290e414-7138-44a8-8066-bb450741466a/sv-benchmarks/c/busybox-1.22.0/stty-2.i[144229,144242] [2023-11-21 22:07:52,398 WARN L240 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_f290e414-7138-44a8-8066-bb450741466a/sv-benchmarks/c/busybox-1.22.0/stty-2.i[144309,144322] [2023-11-21 22:07:52,399 WARN L240 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_f290e414-7138-44a8-8066-bb450741466a/sv-benchmarks/c/busybox-1.22.0/stty-2.i[144543,144556] [2023-11-21 22:07:52,400 WARN L240 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_f290e414-7138-44a8-8066-bb450741466a/sv-benchmarks/c/busybox-1.22.0/stty-2.i[144631,144644] [2023-11-21 22:07:52,401 WARN L240 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_f290e414-7138-44a8-8066-bb450741466a/sv-benchmarks/c/busybox-1.22.0/stty-2.i[144996,145009] [2023-11-21 22:07:52,402 WARN L240 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_f290e414-7138-44a8-8066-bb450741466a/sv-benchmarks/c/busybox-1.22.0/stty-2.i[145092,145105] [2023-11-21 22:07:52,408 WARN L240 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_f290e414-7138-44a8-8066-bb450741466a/sv-benchmarks/c/busybox-1.22.0/stty-2.i[148088,148101] [2023-11-21 22:07:52,465 WARN L240 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_f290e414-7138-44a8-8066-bb450741466a/sv-benchmarks/c/busybox-1.22.0/stty-2.i[175852,175865] [2023-11-21 22:07:52,511 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:07:52,858 WARN L675 CHandler]: The function fflush is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 22:07:52,858 WARN L675 CHandler]: The function strerror is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 22:07:52,858 WARN L675 CHandler]: The function strtoull is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 22:07:52,858 WARN L675 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 22:07:52,859 WARN L675 CHandler]: The function output_func is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 22:07:52,859 WARN L675 CHandler]: The function putchar is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 22:07:52,859 WARN L675 CHandler]: The function strtoul is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 22:07:52,859 WARN L675 CHandler]: The function fputs is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 22:07:52,860 WARN L675 CHandler]: The function vsnprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 22:07:52,860 WARN L675 CHandler]: The function close is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 22:07:52,868 INFO L206 MainTranslator]: Completed translation [2023-11-21 22:07:52,869 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:07:52 WrapperNode [2023-11-21 22:07:52,869 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 22:07:52,870 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 22:07:52,870 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 22:07:52,871 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 22:07:52,879 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:07:52" (1/1) ... [2023-11-21 22:07:52,989 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:07:52" (1/1) ... [2023-11-21 22:07:53,188 INFO L138 Inliner]: procedures = 676, calls = 2257, calls flagged for inlining = 37, calls inlined = 35, statements flattened = 4351 [2023-11-21 22:07:53,189 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 22:07:53,190 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 22:07:53,190 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 22:07:53,191 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 22:07:53,265 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:07:52" (1/1) ... [2023-11-21 22:07:53,266 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:07:52" (1/1) ... [2023-11-21 22:07:53,319 INFO L184 PluginConnector]: Executing the observer HeapSplitter from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:07:52" (1/1) ... [2023-11-21 22:07:53,341 WARN L106 HeapSplitter]: Omit memory slicing because it failed with the following exception: Unsupported: Memory array in LHS [2023-11-21 22:07:53,341 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:07:52" (1/1) ... [2023-11-21 22:07:53,342 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:07:52" (1/1) ... [2023-11-21 22:07:53,458 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:07:52" (1/1) ... [2023-11-21 22:07:53,497 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:07:52" (1/1) ... [2023-11-21 22:07:53,521 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:07:52" (1/1) ... [2023-11-21 22:07:53,545 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:07:52" (1/1) ... [2023-11-21 22:07:53,575 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 22:07:53,576 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 22:07:53,576 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 22:07:53,577 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 22:07:53,577 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:07:52" (1/1) ... [2023-11-21 22:07:53,583 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:07:53,595 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f290e414-7138-44a8-8066-bb450741466a/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:07:53,617 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f290e414-7138-44a8-8066-bb450741466a/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-21 22:07:53,644 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f290e414-7138-44a8-8066-bb450741466a/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-21 22:07:53,664 INFO L130 BoogieDeclarations]: Found specification of procedure putchar [2023-11-21 22:07:53,664 INFO L130 BoogieDeclarations]: Found specification of procedure bb_putchar [2023-11-21 22:07:53,665 INFO L138 BoogieDeclarations]: Found implementation of procedure bb_putchar [2023-11-21 22:07:53,665 INFO L130 BoogieDeclarations]: Found specification of procedure fcntl [2023-11-21 22:07:53,665 INFO L138 BoogieDeclarations]: Found implementation of procedure fcntl [2023-11-21 22:07:53,665 INFO L130 BoogieDeclarations]: Found specification of procedure get_terminal_width_height [2023-11-21 22:07:53,665 INFO L138 BoogieDeclarations]: Found implementation of procedure get_terminal_width_height [2023-11-21 22:07:53,665 INFO L130 BoogieDeclarations]: Found specification of procedure close [2023-11-21 22:07:53,666 INFO L130 BoogieDeclarations]: Found specification of procedure set_control_char_or_die [2023-11-21 22:07:53,666 INFO L138 BoogieDeclarations]: Found implementation of procedure set_control_char_or_die [2023-11-21 22:07:53,666 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2023-11-21 22:07:53,666 INFO L130 BoogieDeclarations]: Found specification of procedure strerror [2023-11-21 22:07:53,666 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-21 22:07:53,666 INFO L130 BoogieDeclarations]: Found specification of procedure perror_on_device_and_die [2023-11-21 22:07:53,667 INFO L138 BoogieDeclarations]: Found implementation of procedure perror_on_device_and_die [2023-11-21 22:07:53,667 INFO L130 BoogieDeclarations]: Found specification of procedure set_window_size [2023-11-21 22:07:53,667 INFO L138 BoogieDeclarations]: Found implementation of procedure set_window_size [2023-11-21 22:07:53,667 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-21 22:07:53,667 INFO L130 BoogieDeclarations]: Found specification of procedure bb_verror_msg [2023-11-21 22:07:53,667 INFO L138 BoogieDeclarations]: Found implementation of procedure bb_verror_msg [2023-11-21 22:07:53,667 INFO L130 BoogieDeclarations]: Found specification of procedure xatoul_sfx [2023-11-21 22:07:53,668 INFO L138 BoogieDeclarations]: Found implementation of procedure xatoul_sfx [2023-11-21 22:07:53,668 INFO L130 BoogieDeclarations]: Found specification of procedure find_param [2023-11-21 22:07:53,668 INFO L138 BoogieDeclarations]: Found implementation of procedure find_param [2023-11-21 22:07:53,668 INFO L130 BoogieDeclarations]: Found specification of procedure xatoul_range_sfx [2023-11-21 22:07:53,668 INFO L138 BoogieDeclarations]: Found implementation of procedure xatoul_range_sfx [2023-11-21 22:07:53,668 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-21 22:07:53,669 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-21 22:07:53,669 INFO L130 BoogieDeclarations]: Found specification of procedure tty_value_to_baud [2023-11-21 22:07:53,669 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_value_to_baud [2023-11-21 22:07:53,669 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-21 22:07:53,669 INFO L130 BoogieDeclarations]: Found specification of procedure fputs [2023-11-21 22:07:53,669 INFO L130 BoogieDeclarations]: Found specification of procedure fflush [2023-11-21 22:07:53,670 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 22:07:53,670 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-21 22:07:53,670 INFO L130 BoogieDeclarations]: Found specification of procedure vsnprintf [2023-11-21 22:07:53,670 INFO L130 BoogieDeclarations]: Found specification of procedure nth_string [2023-11-21 22:07:53,670 INFO L138 BoogieDeclarations]: Found implementation of procedure nth_string [2023-11-21 22:07:53,670 INFO L130 BoogieDeclarations]: Found specification of procedure find_mode [2023-11-21 22:07:53,670 INFO L138 BoogieDeclarations]: Found implementation of procedure find_mode [2023-11-21 22:07:53,671 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 22:07:53,671 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 22:07:53,671 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2023-11-21 22:07:53,671 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2023-11-21 22:07:53,671 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-21 22:07:53,671 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-21 22:07:53,672 INFO L130 BoogieDeclarations]: Found specification of procedure display_speed [2023-11-21 22:07:53,672 INFO L138 BoogieDeclarations]: Found implementation of procedure display_speed [2023-11-21 22:07:53,672 INFO L130 BoogieDeclarations]: Found specification of procedure tty_baud_to_value [2023-11-21 22:07:53,672 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_baud_to_value [2023-11-21 22:07:53,672 INFO L130 BoogieDeclarations]: Found specification of procedure bb_perror_msg_and_die [2023-11-21 22:07:53,672 INFO L138 BoogieDeclarations]: Found implementation of procedure bb_perror_msg_and_die [2023-11-21 22:07:53,672 INFO L130 BoogieDeclarations]: Found specification of procedure get_ptr_to_tcflag [2023-11-21 22:07:53,673 INFO L138 BoogieDeclarations]: Found implementation of procedure get_ptr_to_tcflag [2023-11-21 22:07:53,673 INFO L130 BoogieDeclarations]: Found specification of procedure tcgetattr [2023-11-21 22:07:53,673 INFO L138 BoogieDeclarations]: Found implementation of procedure tcgetattr [2023-11-21 22:07:53,673 INFO L130 BoogieDeclarations]: Found specification of procedure recover_mode [2023-11-21 22:07:53,673 INFO L138 BoogieDeclarations]: Found implementation of procedure recover_mode [2023-11-21 22:07:53,673 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-21 22:07:53,674 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-21 22:07:53,674 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-21 22:07:53,674 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-21 22:07:53,674 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-21 22:07:53,674 INFO L130 BoogieDeclarations]: Found specification of procedure set_speed_or_die [2023-11-21 22:07:53,674 INFO L138 BoogieDeclarations]: Found implementation of procedure set_speed_or_die [2023-11-21 22:07:53,674 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-21 22:07:53,675 INFO L130 BoogieDeclarations]: Found specification of procedure xstrtoull_range_sfx [2023-11-21 22:07:53,675 INFO L138 BoogieDeclarations]: Found implementation of procedure xstrtoull_range_sfx [2023-11-21 22:07:53,675 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-21 22:07:53,675 INFO L130 BoogieDeclarations]: Found specification of procedure ioctl [2023-11-21 22:07:53,675 INFO L138 BoogieDeclarations]: Found implementation of procedure ioctl [2023-11-21 22:07:53,675 INFO L130 BoogieDeclarations]: Found specification of procedure find_control [2023-11-21 22:07:53,676 INFO L138 BoogieDeclarations]: Found implementation of procedure find_control [2023-11-21 22:07:53,676 INFO L130 BoogieDeclarations]: Found specification of procedure xatou [2023-11-21 22:07:53,676 INFO L138 BoogieDeclarations]: Found implementation of procedure xatou [2023-11-21 22:07:53,676 INFO L130 BoogieDeclarations]: Found specification of procedure perror_on_device [2023-11-21 22:07:53,676 INFO L138 BoogieDeclarations]: Found implementation of procedure perror_on_device [2023-11-21 22:07:53,676 INFO L130 BoogieDeclarations]: Found specification of procedure wh_helper [2023-11-21 22:07:53,676 INFO L138 BoogieDeclarations]: Found implementation of procedure wh_helper [2023-11-21 22:07:53,677 INFO L130 BoogieDeclarations]: Found specification of procedure set_mode [2023-11-21 22:07:53,677 INFO L138 BoogieDeclarations]: Found implementation of procedure set_mode [2023-11-21 22:07:53,677 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2023-11-21 22:07:53,677 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-21 22:07:53,677 INFO L130 BoogieDeclarations]: Found specification of procedure index_in_strings [2023-11-21 22:07:53,677 INFO L138 BoogieDeclarations]: Found implementation of procedure index_in_strings [2023-11-21 22:07:53,678 INFO L130 BoogieDeclarations]: Found specification of procedure newline [2023-11-21 22:07:53,678 INFO L138 BoogieDeclarations]: Found implementation of procedure newline [2023-11-21 22:07:53,678 INFO L130 BoogieDeclarations]: Found specification of procedure wrapf [2023-11-21 22:07:53,678 INFO L138 BoogieDeclarations]: Found implementation of procedure wrapf [2023-11-21 22:07:53,678 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2023-11-21 22:07:53,678 INFO L130 BoogieDeclarations]: Found specification of procedure bb_error_msg_and_die [2023-11-21 22:07:53,679 INFO L138 BoogieDeclarations]: Found implementation of procedure bb_error_msg_and_die [2023-11-21 22:07:53,679 INFO L130 BoogieDeclarations]: Found specification of procedure display_window_size [2023-11-21 22:07:53,679 INFO L138 BoogieDeclarations]: Found implementation of procedure display_window_size [2023-11-21 22:07:53,679 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-21 22:07:54,300 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 22:07:54,303 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 22:07:59,100 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 22:08:02,161 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 22:08:02,161 INFO L308 CfgBuilder]: Removed 31 assume(true) statements. [2023-11-21 22:08:02,164 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:08:02 BoogieIcfgContainer [2023-11-21 22:08:02,164 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 22:08:02,168 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-21 22:08:02,169 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-21 22:08:02,172 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-21 22:08:02,173 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 10:07:49" (1/3) ... [2023-11-21 22:08:02,175 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72d281f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:08:02, skipping insertion in model container [2023-11-21 22:08:02,175 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:07:52" (2/3) ... [2023-11-21 22:08:02,176 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72d281f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:08:02, skipping insertion in model container [2023-11-21 22:08:02,176 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:08:02" (3/3) ... [2023-11-21 22:08:02,179 INFO L112 eAbstractionObserver]: Analyzing ICFG stty-2.i [2023-11-21 22:08:02,201 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-21 22:08:02,201 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 31 error locations. [2023-11-21 22:08:02,295 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 22:08:02,303 INFO L357 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=LoopHeads, 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@5d719337, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 22:08:02,304 INFO L358 AbstractCegarLoop]: Starting to check reachability of 31 error locations. [2023-11-21 22:08:02,317 INFO L276 IsEmpty]: Start isEmpty. Operand has 671 states, 488 states have (on average 1.5163934426229508) internal successors, (740), 532 states have internal predecessors, (740), 116 states have call successors, (116), 35 states have call predecessors, (116), 35 states have return successors, (116), 112 states have call predecessors, (116), 116 states have call successors, (116) [2023-11-21 22:08:02,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2023-11-21 22:08:02,356 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:08:02,357 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:08:02,358 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting get_ptr_to_tcflagErr0ASSERT_VIOLATIONERROR_FUNCTION === [set_control_char_or_dieErr0ASSERT_VIOLATIONERROR_FUNCTION, wrapfErr0ASSERT_VIOLATIONERROR_FUNCTION, set_modeErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2023-11-21 22:08:02,365 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:08:02,373 INFO L85 PathProgramCache]: Analyzing trace with hash -263505190, now seen corresponding path program 1 times [2023-11-21 22:08:02,386 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:08:02,386 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [334462656] [2023-11-21 22:08:02,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:08:02,387 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:08:03,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:08:03,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-21 22:08:03,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:08:03,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-21 22:08:03,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:08:03,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-11-21 22:08:03,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:08:03,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-21 22:08:03,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:08:03,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 22:08:03,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:08:03,927 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:08:03,928 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:08:03,928 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [334462656] [2023-11-21 22:08:03,929 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [334462656] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:08:03,929 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:08:03,930 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-21 22:08:03,931 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1098075826] [2023-11-21 22:08:03,932 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:08:03,937 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-21 22:08:03,939 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:08:03,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-21 22:08:03,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-21 22:08:03,982 INFO L87 Difference]: Start difference. First operand has 671 states, 488 states have (on average 1.5163934426229508) internal successors, (740), 532 states have internal predecessors, (740), 116 states have call successors, (116), 35 states have call predecessors, (116), 35 states have return successors, (116), 112 states have call predecessors, (116), 116 states have call successors, (116) Second operand has 4 states, 4 states have (on average 9.75) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (5), 1 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-21 22:08:07,539 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-21 22:08:09,543 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-21 22:08:11,565 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-21 22:08:13,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:08:13,010 INFO L93 Difference]: Finished difference Result 1393 states and 2104 transitions. [2023-11-21 22:08:13,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-21 22:08:13,014 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (5), 1 states have call predecessors, (5), 2 states have call successors, (5) Word has length 51 [2023-11-21 22:08:13,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:08:13,053 INFO L225 Difference]: With dead ends: 1393 [2023-11-21 22:08:13,054 INFO L226 Difference]: Without dead ends: 667 [2023-11-21 22:08:13,072 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-21 22:08:13,077 INFO L413 NwaCegarLoop]: 719 mSDtfsCounter, 182 mSDsluCounter, 1093 mSDsCounter, 0 mSdLazyCounter, 662 mSolverCounterSat, 122 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 190 SdHoareTripleChecker+Valid, 1812 SdHoareTripleChecker+Invalid, 787 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 122 IncrementalHoareTripleChecker+Valid, 662 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.8s IncrementalHoareTripleChecker+Time [2023-11-21 22:08:13,078 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [190 Valid, 1812 Invalid, 787 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [122 Valid, 662 Invalid, 3 Unknown, 0 Unchecked, 8.8s Time] [2023-11-21 22:08:13,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 667 states. [2023-11-21 22:08:13,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 667 to 602. [2023-11-21 22:08:13,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 602 states, 447 states have (on average 1.3803131991051454) internal successors, (617), 487 states have internal predecessors, (617), 92 states have call successors, (92), 32 states have call predecessors, (92), 32 states have return successors, (91), 87 states have call predecessors, (91), 91 states have call successors, (91) [2023-11-21 22:08:13,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 602 states to 602 states and 800 transitions. [2023-11-21 22:08:13,234 INFO L78 Accepts]: Start accepts. Automaton has 602 states and 800 transitions. Word has length 51 [2023-11-21 22:08:13,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:08:13,235 INFO L495 AbstractCegarLoop]: Abstraction has 602 states and 800 transitions. [2023-11-21 22:08:13,235 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (5), 1 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-21 22:08:13,236 INFO L276 IsEmpty]: Start isEmpty. Operand 602 states and 800 transitions. [2023-11-21 22:08:13,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2023-11-21 22:08:13,240 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:08:13,241 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:08:13,241 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-21 22:08:13,241 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting get_ptr_to_tcflagErr0ASSERT_VIOLATIONERROR_FUNCTION === [set_control_char_or_dieErr0ASSERT_VIOLATIONERROR_FUNCTION, wrapfErr0ASSERT_VIOLATIONERROR_FUNCTION, set_modeErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2023-11-21 22:08:13,242 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:08:13,243 INFO L85 PathProgramCache]: Analyzing trace with hash -1442860040, now seen corresponding path program 1 times [2023-11-21 22:08:13,243 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:08:13,243 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1845954182] [2023-11-21 22:08:13,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:08:13,244 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:08:13,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:08:14,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-21 22:08:14,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:08:14,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-21 22:08:14,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:08:14,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-11-21 22:08:14,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:08:14,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-11-21 22:08:14,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:08:14,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 22:08:14,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:08:14,288 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:08:14,289 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:08:14,289 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1845954182] [2023-11-21 22:08:14,289 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1845954182] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-21 22:08:14,289 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2062968890] [2023-11-21 22:08:14,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:08:14,290 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:08:14,290 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f290e414-7138-44a8-8066-bb450741466a/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:08:14,292 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f290e414-7138-44a8-8066-bb450741466a/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 22:08:14,317 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f290e414-7138-44a8-8066-bb450741466a/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-21 22:08:15,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:08:15,583 INFO L262 TraceCheckSpWp]: Trace formula consists of 3251 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-21 22:08:15,592 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:08:15,630 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-21 22:08:15,630 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 22:08:15,630 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2062968890] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:08:15,631 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-21 22:08:15,631 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2023-11-21 22:08:15,632 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2007839147] [2023-11-21 22:08:15,632 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:08:15,633 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:08:15,633 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:08:15,634 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:08:15,634 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-21 22:08:15,634 INFO L87 Difference]: Start difference. First operand 602 states and 800 transitions. Second operand has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-21 22:08:18,256 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-21 22:08:20,263 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-21 22:08:20,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:08:20,667 INFO L93 Difference]: Finished difference Result 604 states and 804 transitions. [2023-11-21 22:08:20,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:08:20,668 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 55 [2023-11-21 22:08:20,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:08:20,673 INFO L225 Difference]: With dead ends: 604 [2023-11-21 22:08:20,673 INFO L226 Difference]: Without dead ends: 602 [2023-11-21 22:08:20,674 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-21 22:08:20,675 INFO L413 NwaCegarLoop]: 694 mSDtfsCounter, 3 mSDsluCounter, 690 mSDsCounter, 0 mSdLazyCounter, 212 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 1384 SdHoareTripleChecker+Invalid, 214 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 212 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2023-11-21 22:08:20,676 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 1384 Invalid, 214 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 212 Invalid, 2 Unknown, 0 Unchecked, 5.0s Time] [2023-11-21 22:08:20,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 602 states. [2023-11-21 22:08:20,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 602 to 600. [2023-11-21 22:08:20,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 600 states, 446 states have (on average 1.3789237668161436) internal successors, (615), 485 states have internal predecessors, (615), 92 states have call successors, (92), 32 states have call predecessors, (92), 32 states have return successors, (91), 87 states have call predecessors, (91), 91 states have call successors, (91) [2023-11-21 22:08:20,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 600 states to 600 states and 798 transitions. [2023-11-21 22:08:20,711 INFO L78 Accepts]: Start accepts. Automaton has 600 states and 798 transitions. Word has length 55 [2023-11-21 22:08:20,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:08:20,711 INFO L495 AbstractCegarLoop]: Abstraction has 600 states and 798 transitions. [2023-11-21 22:08:20,712 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-21 22:08:20,712 INFO L276 IsEmpty]: Start isEmpty. Operand 600 states and 798 transitions. [2023-11-21 22:08:20,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2023-11-21 22:08:20,715 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:08:20,715 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:08:20,752 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f290e414-7138-44a8-8066-bb450741466a/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-21 22:08:20,928 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f290e414-7138-44a8-8066-bb450741466a/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:08:20,928 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting set_control_char_or_dieErr0ASSERT_VIOLATIONERROR_FUNCTION === [set_control_char_or_dieErr0ASSERT_VIOLATIONERROR_FUNCTION, wrapfErr0ASSERT_VIOLATIONERROR_FUNCTION, set_modeErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2023-11-21 22:08:20,929 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:08:20,929 INFO L85 PathProgramCache]: Analyzing trace with hash -1764801583, now seen corresponding path program 1 times [2023-11-21 22:08:20,929 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:08:20,929 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1925553852] [2023-11-21 22:08:20,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:08:20,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:08:21,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:08:21,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-21 22:08:21,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:08:21,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-21 22:08:21,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:08:21,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 22:08:21,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:08:21,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-11-21 22:08:21,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:08:21,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 22:08:21,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:08:21,672 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-21 22:08:21,673 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:08:21,673 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1925553852] [2023-11-21 22:08:21,673 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1925553852] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-21 22:08:21,673 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1611674024] [2023-11-21 22:08:21,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:08:21,674 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:08:21,674 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f290e414-7138-44a8-8066-bb450741466a/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:08:21,675 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f290e414-7138-44a8-8066-bb450741466a/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 22:08:21,679 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f290e414-7138-44a8-8066-bb450741466a/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-21 22:08:22,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:08:22,861 INFO L262 TraceCheckSpWp]: Trace formula consists of 3273 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-21 22:08:22,867 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:08:22,909 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-21 22:08:22,909 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-21 22:08:22,977 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-21 22:08:22,978 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1611674024] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-21 22:08:22,978 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-21 22:08:22,978 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 3, 4] total 7 [2023-11-21 22:08:22,978 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1858086909] [2023-11-21 22:08:22,978 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-21 22:08:22,979 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-21 22:08:22,979 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:08:22,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-21 22:08:22,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-11-21 22:08:22,980 INFO L87 Difference]: Start difference. First operand 600 states and 798 transitions. Second operand has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 7 states have internal predecessors, (52), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-11-21 22:08:25,610 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-21 22:08:27,622 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-21 22:08:29,626 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-21 22:08:31,653 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-21 22:08:33,663 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-21 22:08:35,681 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-21 22:08:36,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:08:36,469 INFO L93 Difference]: Finished difference Result 1200 states and 1598 transitions. [2023-11-21 22:08:36,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-21 22:08:36,470 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 7 states have internal predecessors, (52), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 53 [2023-11-21 22:08:36,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:08:36,475 INFO L225 Difference]: With dead ends: 1200 [2023-11-21 22:08:36,476 INFO L226 Difference]: Without dead ends: 603 [2023-11-21 22:08:36,478 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-11-21 22:08:36,479 INFO L413 NwaCegarLoop]: 692 mSDtfsCounter, 0 mSDsluCounter, 2076 mSDsCounter, 0 mSdLazyCounter, 414 mSolverCounterSat, 1 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2768 SdHoareTripleChecker+Invalid, 421 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 414 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.4s IncrementalHoareTripleChecker+Time [2023-11-21 22:08:36,480 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2768 Invalid, 421 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 414 Invalid, 6 Unknown, 0 Unchecked, 13.4s Time] [2023-11-21 22:08:36,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 603 states. [2023-11-21 22:08:36,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 603 to 603. [2023-11-21 22:08:36,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 603 states, 449 states have (on average 1.376391982182628) internal successors, (618), 488 states have internal predecessors, (618), 92 states have call successors, (92), 32 states have call predecessors, (92), 32 states have return successors, (91), 87 states have call predecessors, (91), 91 states have call successors, (91) [2023-11-21 22:08:36,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 603 states to 603 states and 801 transitions. [2023-11-21 22:08:36,511 INFO L78 Accepts]: Start accepts. Automaton has 603 states and 801 transitions. Word has length 53 [2023-11-21 22:08:36,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:08:36,512 INFO L495 AbstractCegarLoop]: Abstraction has 603 states and 801 transitions. [2023-11-21 22:08:36,512 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 7 states have internal predecessors, (52), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-11-21 22:08:36,512 INFO L276 IsEmpty]: Start isEmpty. Operand 603 states and 801 transitions. [2023-11-21 22:08:36,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2023-11-21 22:08:36,514 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:08:36,515 INFO L195 NwaCegarLoop]: trace histogram [4, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:08:36,547 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f290e414-7138-44a8-8066-bb450741466a/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-21 22:08:36,731 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f290e414-7138-44a8-8066-bb450741466a/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:08:36,732 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting set_control_char_or_dieErr0ASSERT_VIOLATIONERROR_FUNCTION === [set_control_char_or_dieErr0ASSERT_VIOLATIONERROR_FUNCTION, wrapfErr0ASSERT_VIOLATIONERROR_FUNCTION, set_modeErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2023-11-21 22:08:36,732 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:08:36,732 INFO L85 PathProgramCache]: Analyzing trace with hash 205858122, now seen corresponding path program 2 times [2023-11-21 22:08:36,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:08:36,732 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [783303485] [2023-11-21 22:08:36,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:08:36,732 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:08:36,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:08:37,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-21 22:08:37,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:08:37,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-21 22:08:37,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:08:37,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 22:08:37,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:08:37,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-11-21 22:08:37,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:08:37,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 22:08:37,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:08:37,694 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-21 22:08:37,695 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:08:37,695 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [783303485] [2023-11-21 22:08:37,696 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [783303485] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-21 22:08:37,696 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [168580174] [2023-11-21 22:08:37,697 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-21 22:08:37,698 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:08:37,698 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f290e414-7138-44a8-8066-bb450741466a/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:08:37,701 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f290e414-7138-44a8-8066-bb450741466a/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 22:08:37,724 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f290e414-7138-44a8-8066-bb450741466a/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-21 22:08:38,896 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-21 22:08:38,896 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-21 22:08:38,913 INFO L262 TraceCheckSpWp]: Trace formula consists of 3192 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-21 22:08:38,921 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:08:39,645 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-11-21 22:08:39,645 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 22:08:39,645 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [168580174] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:08:39,645 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-21 22:08:39,645 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [7] total 16 [2023-11-21 22:08:39,646 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1911944400] [2023-11-21 22:08:39,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:08:39,646 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-21 22:08:39,647 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:08:39,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-21 22:08:39,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=195, Unknown=0, NotChecked=0, Total=240 [2023-11-21 22:08:39,648 INFO L87 Difference]: Start difference. First operand 603 states and 801 transitions. Second operand has 11 states, 10 states have (on average 3.9) internal successors, (39), 8 states have internal predecessors, (39), 2 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (5), 3 states have call predecessors, (5), 1 states have call successors, (5)