./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 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04100bcd-5aa6-49cb-8ae1-ae4fca517441/bin/uautomizer-verify-NlZe1sFDwI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04100bcd-5aa6-49cb-8ae1-ae4fca517441/bin/uautomizer-verify-NlZe1sFDwI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04100bcd-5aa6-49cb-8ae1-ae4fca517441/bin/uautomizer-verify-NlZe1sFDwI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04100bcd-5aa6-49cb-8ae1-ae4fca517441/bin/uautomizer-verify-NlZe1sFDwI/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_04100bcd-5aa6-49cb-8ae1-ae4fca517441/bin/uautomizer-verify-NlZe1sFDwI/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04100bcd-5aa6-49cb-8ae1-ae4fca517441/bin/uautomizer-verify-NlZe1sFDwI --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 0.2.4-dev-0e0057c [2023-11-24 21:51:41,549 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 21:51:41,614 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04100bcd-5aa6-49cb-8ae1-ae4fca517441/bin/uautomizer-verify-NlZe1sFDwI/config/svcomp-Reach-64bit-Automizer_Default.epf [2023-11-24 21:51:41,620 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 21:51:41,621 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-24 21:51:41,653 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 21:51:41,654 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-24 21:51:41,655 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-24 21:51:41,656 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-24 21:51:41,656 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-24 21:51:41,657 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 21:51:41,657 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-24 21:51:41,658 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-24 21:51:41,659 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-24 21:51:41,660 INFO L153 SettingsManager]: * Use SBE=true [2023-11-24 21:51:41,660 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 21:51:41,661 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-24 21:51:41,661 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-24 21:51:41,662 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 21:51:41,663 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-24 21:51:41,663 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 21:51:41,668 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-24 21:51:41,668 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-24 21:51:41,669 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 21:51:41,674 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 21:51:41,674 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-24 21:51:41,675 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-24 21:51:41,675 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-24 21:51:41,676 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-24 21:51:41,676 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 21:51:41,678 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 21:51:41,678 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-24 21:51:41,678 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-24 21:51:41,679 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-24 21:51:41,679 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-24 21:51:41,679 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-24 21:51:41,679 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-24 21:51:41,680 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-24 21:51:41,680 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-24 21:51:41,680 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_04100bcd-5aa6-49cb-8ae1-ae4fca517441/bin/uautomizer-verify-NlZe1sFDwI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04100bcd-5aa6-49cb-8ae1-ae4fca517441/bin/uautomizer-verify-NlZe1sFDwI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 407efb5d110f0d8a5006d45a10a4353022c10a59bc24e54b714ee2eb1689c810 [2023-11-24 21:51:41,937 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 21:51:41,959 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 21:51:41,962 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 21:51:41,964 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 21:51:41,964 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 21:51:41,966 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04100bcd-5aa6-49cb-8ae1-ae4fca517441/bin/uautomizer-verify-NlZe1sFDwI/../../sv-benchmarks/c/busybox-1.22.0/stty-2.i [2023-11-24 21:51:45,105 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 21:51:45,685 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 21:51:45,685 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04100bcd-5aa6-49cb-8ae1-ae4fca517441/sv-benchmarks/c/busybox-1.22.0/stty-2.i [2023-11-24 21:51:45,726 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04100bcd-5aa6-49cb-8ae1-ae4fca517441/bin/uautomizer-verify-NlZe1sFDwI/data/f60cd21c1/6a33e9498f9f4cc7b67f0fe5a5e9c119/FLAG6c7bb7847 [2023-11-24 21:51:45,740 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04100bcd-5aa6-49cb-8ae1-ae4fca517441/bin/uautomizer-verify-NlZe1sFDwI/data/f60cd21c1/6a33e9498f9f4cc7b67f0fe5a5e9c119 [2023-11-24 21:51:45,743 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 21:51:45,745 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 21:51:45,746 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 21:51:45,746 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 21:51:45,752 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 21:51:45,753 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 09:51:45" (1/1) ... [2023-11-24 21:51:45,755 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@22d27f97 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:51:45, skipping insertion in model container [2023-11-24 21:51:45,755 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 09:51:45" (1/1) ... [2023-11-24 21:51:45,956 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 21:51:48,054 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_04100bcd-5aa6-49cb-8ae1-ae4fca517441/sv-benchmarks/c/busybox-1.22.0/stty-2.i[132222,132235] [2023-11-24 21:51:48,059 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_04100bcd-5aa6-49cb-8ae1-ae4fca517441/sv-benchmarks/c/busybox-1.22.0/stty-2.i[132302,132315] [2023-11-24 21:51:48,068 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_04100bcd-5aa6-49cb-8ae1-ae4fca517441/sv-benchmarks/c/busybox-1.22.0/stty-2.i[133183,133196] [2023-11-24 21:51:48,069 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_04100bcd-5aa6-49cb-8ae1-ae4fca517441/sv-benchmarks/c/busybox-1.22.0/stty-2.i[133263,133276] [2023-11-24 21:51:48,070 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_04100bcd-5aa6-49cb-8ae1-ae4fca517441/sv-benchmarks/c/busybox-1.22.0/stty-2.i[133537,133550] [2023-11-24 21:51:48,071 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_04100bcd-5aa6-49cb-8ae1-ae4fca517441/sv-benchmarks/c/busybox-1.22.0/stty-2.i[133633,133646] [2023-11-24 21:51:48,077 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_04100bcd-5aa6-49cb-8ae1-ae4fca517441/sv-benchmarks/c/busybox-1.22.0/stty-2.i[133802,133815] [2023-11-24 21:51:48,078 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_04100bcd-5aa6-49cb-8ae1-ae4fca517441/sv-benchmarks/c/busybox-1.22.0/stty-2.i[133890,133903] [2023-11-24 21:51:48,079 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_04100bcd-5aa6-49cb-8ae1-ae4fca517441/sv-benchmarks/c/busybox-1.22.0/stty-2.i[134070,134083] [2023-11-24 21:51:48,079 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_04100bcd-5aa6-49cb-8ae1-ae4fca517441/sv-benchmarks/c/busybox-1.22.0/stty-2.i[134158,134171] [2023-11-24 21:51:48,081 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_04100bcd-5aa6-49cb-8ae1-ae4fca517441/sv-benchmarks/c/busybox-1.22.0/stty-2.i[134417,134430] [2023-11-24 21:51:48,082 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_04100bcd-5aa6-49cb-8ae1-ae4fca517441/sv-benchmarks/c/busybox-1.22.0/stty-2.i[134513,134526] [2023-11-24 21:51:48,085 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_04100bcd-5aa6-49cb-8ae1-ae4fca517441/sv-benchmarks/c/busybox-1.22.0/stty-2.i[134721,134734] [2023-11-24 21:51:48,086 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_04100bcd-5aa6-49cb-8ae1-ae4fca517441/sv-benchmarks/c/busybox-1.22.0/stty-2.i[134809,134822] [2023-11-24 21:51:48,088 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_04100bcd-5aa6-49cb-8ae1-ae4fca517441/sv-benchmarks/c/busybox-1.22.0/stty-2.i[135109,135122] [2023-11-24 21:51:48,089 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_04100bcd-5aa6-49cb-8ae1-ae4fca517441/sv-benchmarks/c/busybox-1.22.0/stty-2.i[135213,135226] [2023-11-24 21:51:48,100 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_04100bcd-5aa6-49cb-8ae1-ae4fca517441/sv-benchmarks/c/busybox-1.22.0/stty-2.i[135727,135740] [2023-11-24 21:51:48,102 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_04100bcd-5aa6-49cb-8ae1-ae4fca517441/sv-benchmarks/c/busybox-1.22.0/stty-2.i[135831,135844] [2023-11-24 21:51:48,104 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_04100bcd-5aa6-49cb-8ae1-ae4fca517441/sv-benchmarks/c/busybox-1.22.0/stty-2.i[136277,136290] [2023-11-24 21:51:48,105 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_04100bcd-5aa6-49cb-8ae1-ae4fca517441/sv-benchmarks/c/busybox-1.22.0/stty-2.i[136389,136402] [2023-11-24 21:51:48,118 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_04100bcd-5aa6-49cb-8ae1-ae4fca517441/sv-benchmarks/c/busybox-1.22.0/stty-2.i[139562,139575] [2023-11-24 21:51:48,131 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_04100bcd-5aa6-49cb-8ae1-ae4fca517441/sv-benchmarks/c/busybox-1.22.0/stty-2.i[143855,143868] [2023-11-24 21:51:48,132 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_04100bcd-5aa6-49cb-8ae1-ae4fca517441/sv-benchmarks/c/busybox-1.22.0/stty-2.i[143935,143948] [2023-11-24 21:51:48,133 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_04100bcd-5aa6-49cb-8ae1-ae4fca517441/sv-benchmarks/c/busybox-1.22.0/stty-2.i[144229,144242] [2023-11-24 21:51:48,134 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_04100bcd-5aa6-49cb-8ae1-ae4fca517441/sv-benchmarks/c/busybox-1.22.0/stty-2.i[144309,144322] [2023-11-24 21:51:48,135 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_04100bcd-5aa6-49cb-8ae1-ae4fca517441/sv-benchmarks/c/busybox-1.22.0/stty-2.i[144543,144556] [2023-11-24 21:51:48,136 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_04100bcd-5aa6-49cb-8ae1-ae4fca517441/sv-benchmarks/c/busybox-1.22.0/stty-2.i[144631,144644] [2023-11-24 21:51:48,137 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_04100bcd-5aa6-49cb-8ae1-ae4fca517441/sv-benchmarks/c/busybox-1.22.0/stty-2.i[144996,145009] [2023-11-24 21:51:48,138 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_04100bcd-5aa6-49cb-8ae1-ae4fca517441/sv-benchmarks/c/busybox-1.22.0/stty-2.i[145092,145105] [2023-11-24 21:51:48,146 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_04100bcd-5aa6-49cb-8ae1-ae4fca517441/sv-benchmarks/c/busybox-1.22.0/stty-2.i[148088,148101] [2023-11-24 21:51:48,219 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_04100bcd-5aa6-49cb-8ae1-ae4fca517441/sv-benchmarks/c/busybox-1.22.0/stty-2.i[175852,175865] [2023-11-24 21:51:48,315 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 21:51:48,399 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 21:51:48,518 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_04100bcd-5aa6-49cb-8ae1-ae4fca517441/sv-benchmarks/c/busybox-1.22.0/stty-2.i[132222,132235] [2023-11-24 21:51:48,519 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_04100bcd-5aa6-49cb-8ae1-ae4fca517441/sv-benchmarks/c/busybox-1.22.0/stty-2.i[132302,132315] [2023-11-24 21:51:48,522 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_04100bcd-5aa6-49cb-8ae1-ae4fca517441/sv-benchmarks/c/busybox-1.22.0/stty-2.i[133183,133196] [2023-11-24 21:51:48,523 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_04100bcd-5aa6-49cb-8ae1-ae4fca517441/sv-benchmarks/c/busybox-1.22.0/stty-2.i[133263,133276] [2023-11-24 21:51:48,524 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_04100bcd-5aa6-49cb-8ae1-ae4fca517441/sv-benchmarks/c/busybox-1.22.0/stty-2.i[133537,133550] [2023-11-24 21:51:48,525 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_04100bcd-5aa6-49cb-8ae1-ae4fca517441/sv-benchmarks/c/busybox-1.22.0/stty-2.i[133633,133646] [2023-11-24 21:51:48,525 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_04100bcd-5aa6-49cb-8ae1-ae4fca517441/sv-benchmarks/c/busybox-1.22.0/stty-2.i[133802,133815] [2023-11-24 21:51:48,526 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_04100bcd-5aa6-49cb-8ae1-ae4fca517441/sv-benchmarks/c/busybox-1.22.0/stty-2.i[133890,133903] [2023-11-24 21:51:48,527 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_04100bcd-5aa6-49cb-8ae1-ae4fca517441/sv-benchmarks/c/busybox-1.22.0/stty-2.i[134070,134083] [2023-11-24 21:51:48,528 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_04100bcd-5aa6-49cb-8ae1-ae4fca517441/sv-benchmarks/c/busybox-1.22.0/stty-2.i[134158,134171] [2023-11-24 21:51:48,529 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_04100bcd-5aa6-49cb-8ae1-ae4fca517441/sv-benchmarks/c/busybox-1.22.0/stty-2.i[134417,134430] [2023-11-24 21:51:48,530 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_04100bcd-5aa6-49cb-8ae1-ae4fca517441/sv-benchmarks/c/busybox-1.22.0/stty-2.i[134513,134526] [2023-11-24 21:51:48,531 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_04100bcd-5aa6-49cb-8ae1-ae4fca517441/sv-benchmarks/c/busybox-1.22.0/stty-2.i[134721,134734] [2023-11-24 21:51:48,531 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_04100bcd-5aa6-49cb-8ae1-ae4fca517441/sv-benchmarks/c/busybox-1.22.0/stty-2.i[134809,134822] [2023-11-24 21:51:48,532 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_04100bcd-5aa6-49cb-8ae1-ae4fca517441/sv-benchmarks/c/busybox-1.22.0/stty-2.i[135109,135122] [2023-11-24 21:51:48,533 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_04100bcd-5aa6-49cb-8ae1-ae4fca517441/sv-benchmarks/c/busybox-1.22.0/stty-2.i[135213,135226] [2023-11-24 21:51:48,535 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_04100bcd-5aa6-49cb-8ae1-ae4fca517441/sv-benchmarks/c/busybox-1.22.0/stty-2.i[135727,135740] [2023-11-24 21:51:48,535 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_04100bcd-5aa6-49cb-8ae1-ae4fca517441/sv-benchmarks/c/busybox-1.22.0/stty-2.i[135831,135844] [2023-11-24 21:51:48,536 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_04100bcd-5aa6-49cb-8ae1-ae4fca517441/sv-benchmarks/c/busybox-1.22.0/stty-2.i[136277,136290] [2023-11-24 21:51:48,537 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_04100bcd-5aa6-49cb-8ae1-ae4fca517441/sv-benchmarks/c/busybox-1.22.0/stty-2.i[136389,136402] [2023-11-24 21:51:48,544 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_04100bcd-5aa6-49cb-8ae1-ae4fca517441/sv-benchmarks/c/busybox-1.22.0/stty-2.i[139562,139575] [2023-11-24 21:51:48,561 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_04100bcd-5aa6-49cb-8ae1-ae4fca517441/sv-benchmarks/c/busybox-1.22.0/stty-2.i[143855,143868] [2023-11-24 21:51:48,561 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_04100bcd-5aa6-49cb-8ae1-ae4fca517441/sv-benchmarks/c/busybox-1.22.0/stty-2.i[143935,143948] [2023-11-24 21:51:48,564 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_04100bcd-5aa6-49cb-8ae1-ae4fca517441/sv-benchmarks/c/busybox-1.22.0/stty-2.i[144229,144242] [2023-11-24 21:51:48,565 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_04100bcd-5aa6-49cb-8ae1-ae4fca517441/sv-benchmarks/c/busybox-1.22.0/stty-2.i[144309,144322] [2023-11-24 21:51:48,566 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_04100bcd-5aa6-49cb-8ae1-ae4fca517441/sv-benchmarks/c/busybox-1.22.0/stty-2.i[144543,144556] [2023-11-24 21:51:48,567 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_04100bcd-5aa6-49cb-8ae1-ae4fca517441/sv-benchmarks/c/busybox-1.22.0/stty-2.i[144631,144644] [2023-11-24 21:51:48,572 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_04100bcd-5aa6-49cb-8ae1-ae4fca517441/sv-benchmarks/c/busybox-1.22.0/stty-2.i[144996,145009] [2023-11-24 21:51:48,572 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_04100bcd-5aa6-49cb-8ae1-ae4fca517441/sv-benchmarks/c/busybox-1.22.0/stty-2.i[145092,145105] [2023-11-24 21:51:48,581 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_04100bcd-5aa6-49cb-8ae1-ae4fca517441/sv-benchmarks/c/busybox-1.22.0/stty-2.i[148088,148101] [2023-11-24 21:51:48,670 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_04100bcd-5aa6-49cb-8ae1-ae4fca517441/sv-benchmarks/c/busybox-1.22.0/stty-2.i[175852,175865] [2023-11-24 21:51:48,713 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 21:51:49,070 WARN L675 CHandler]: The function fflush is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 21:51:49,070 WARN L675 CHandler]: The function strerror is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 21:51:49,071 WARN L675 CHandler]: The function strtoull is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 21:51:49,071 WARN L675 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 21:51:49,071 WARN L675 CHandler]: The function output_func is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 21:51:49,072 WARN L675 CHandler]: The function putchar is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 21:51:49,072 WARN L675 CHandler]: The function strtoul is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 21:51:49,072 WARN L675 CHandler]: The function fputs is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 21:51:49,072 WARN L675 CHandler]: The function vsnprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 21:51:49,072 WARN L675 CHandler]: The function close is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 21:51:49,080 INFO L206 MainTranslator]: Completed translation [2023-11-24 21:51:49,081 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:51:49 WrapperNode [2023-11-24 21:51:49,081 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 21:51:49,082 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 21:51:49,082 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 21:51:49,083 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 21:51:49,116 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:51:49" (1/1) ... [2023-11-24 21:51:49,244 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:51:49" (1/1) ... [2023-11-24 21:51:49,412 INFO L138 Inliner]: procedures = 676, calls = 2257, calls flagged for inlining = 37, calls inlined = 35, statements flattened = 4375 [2023-11-24 21:51:49,413 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 21:51:49,413 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 21:51:49,414 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 21:51:49,414 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 21:51:49,426 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:51:49" (1/1) ... [2023-11-24 21:51:49,426 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:51:49" (1/1) ... [2023-11-24 21:51:49,472 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:51:49" (1/1) ... [2023-11-24 21:51:49,492 WARN L109 MemorySlicer]: Omit memory slicing because it failed with the following exception: Unsupported: Memory array in LHS [2023-11-24 21:51:49,492 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:51:49" (1/1) ... [2023-11-24 21:51:49,492 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:51:49" (1/1) ... [2023-11-24 21:51:49,606 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:51:49" (1/1) ... [2023-11-24 21:51:49,651 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:51:49" (1/1) ... [2023-11-24 21:51:49,686 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:51:49" (1/1) ... [2023-11-24 21:51:49,711 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:51:49" (1/1) ... [2023-11-24 21:51:49,750 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 21:51:49,752 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 21:51:49,752 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 21:51:49,752 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 21:51:49,753 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:51:49" (1/1) ... [2023-11-24 21:51:49,759 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-24 21:51:49,771 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04100bcd-5aa6-49cb-8ae1-ae4fca517441/bin/uautomizer-verify-NlZe1sFDwI/z3 [2023-11-24 21:51:49,790 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04100bcd-5aa6-49cb-8ae1-ae4fca517441/bin/uautomizer-verify-NlZe1sFDwI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-24 21:51:49,816 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04100bcd-5aa6-49cb-8ae1-ae4fca517441/bin/uautomizer-verify-NlZe1sFDwI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-24 21:51:49,844 INFO L130 BoogieDeclarations]: Found specification of procedure putchar [2023-11-24 21:51:49,845 INFO L130 BoogieDeclarations]: Found specification of procedure bb_putchar [2023-11-24 21:51:49,845 INFO L138 BoogieDeclarations]: Found implementation of procedure bb_putchar [2023-11-24 21:51:49,845 INFO L130 BoogieDeclarations]: Found specification of procedure fcntl [2023-11-24 21:51:49,845 INFO L138 BoogieDeclarations]: Found implementation of procedure fcntl [2023-11-24 21:51:49,846 INFO L130 BoogieDeclarations]: Found specification of procedure get_terminal_width_height [2023-11-24 21:51:49,846 INFO L138 BoogieDeclarations]: Found implementation of procedure get_terminal_width_height [2023-11-24 21:51:49,846 INFO L130 BoogieDeclarations]: Found specification of procedure close [2023-11-24 21:51:49,846 INFO L130 BoogieDeclarations]: Found specification of procedure set_control_char_or_die [2023-11-24 21:51:49,846 INFO L138 BoogieDeclarations]: Found implementation of procedure set_control_char_or_die [2023-11-24 21:51:49,846 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2023-11-24 21:51:49,847 INFO L130 BoogieDeclarations]: Found specification of procedure strerror [2023-11-24 21:51:49,847 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-24 21:51:49,847 INFO L130 BoogieDeclarations]: Found specification of procedure perror_on_device_and_die [2023-11-24 21:51:49,847 INFO L138 BoogieDeclarations]: Found implementation of procedure perror_on_device_and_die [2023-11-24 21:51:49,847 INFO L130 BoogieDeclarations]: Found specification of procedure set_window_size [2023-11-24 21:51:49,847 INFO L138 BoogieDeclarations]: Found implementation of procedure set_window_size [2023-11-24 21:51:49,848 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-24 21:51:49,848 INFO L130 BoogieDeclarations]: Found specification of procedure bb_verror_msg [2023-11-24 21:51:49,849 INFO L138 BoogieDeclarations]: Found implementation of procedure bb_verror_msg [2023-11-24 21:51:49,849 INFO L130 BoogieDeclarations]: Found specification of procedure xatoul_sfx [2023-11-24 21:51:49,849 INFO L138 BoogieDeclarations]: Found implementation of procedure xatoul_sfx [2023-11-24 21:51:49,849 INFO L130 BoogieDeclarations]: Found specification of procedure find_param [2023-11-24 21:51:49,849 INFO L138 BoogieDeclarations]: Found implementation of procedure find_param [2023-11-24 21:51:49,849 INFO L130 BoogieDeclarations]: Found specification of procedure xatoul_range_sfx [2023-11-24 21:51:49,850 INFO L138 BoogieDeclarations]: Found implementation of procedure xatoul_range_sfx [2023-11-24 21:51:49,850 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-24 21:51:49,850 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-24 21:51:49,850 INFO L130 BoogieDeclarations]: Found specification of procedure tty_value_to_baud [2023-11-24 21:51:49,851 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_value_to_baud [2023-11-24 21:51:49,852 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-24 21:51:49,852 INFO L130 BoogieDeclarations]: Found specification of procedure fputs [2023-11-24 21:51:49,852 INFO L130 BoogieDeclarations]: Found specification of procedure fflush [2023-11-24 21:51:49,853 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-24 21:51:49,853 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-24 21:51:49,853 INFO L130 BoogieDeclarations]: Found specification of procedure vsnprintf [2023-11-24 21:51:49,853 INFO L130 BoogieDeclarations]: Found specification of procedure nth_string [2023-11-24 21:51:49,853 INFO L138 BoogieDeclarations]: Found implementation of procedure nth_string [2023-11-24 21:51:49,853 INFO L130 BoogieDeclarations]: Found specification of procedure find_mode [2023-11-24 21:51:49,853 INFO L138 BoogieDeclarations]: Found implementation of procedure find_mode [2023-11-24 21:51:49,854 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 21:51:49,854 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 21:51:49,854 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2023-11-24 21:51:49,854 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2023-11-24 21:51:49,855 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-24 21:51:49,855 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-24 21:51:49,855 INFO L130 BoogieDeclarations]: Found specification of procedure display_speed [2023-11-24 21:51:49,855 INFO L138 BoogieDeclarations]: Found implementation of procedure display_speed [2023-11-24 21:51:49,855 INFO L130 BoogieDeclarations]: Found specification of procedure tty_baud_to_value [2023-11-24 21:51:49,855 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_baud_to_value [2023-11-24 21:51:49,855 INFO L130 BoogieDeclarations]: Found specification of procedure bb_perror_msg_and_die [2023-11-24 21:51:49,856 INFO L138 BoogieDeclarations]: Found implementation of procedure bb_perror_msg_and_die [2023-11-24 21:51:49,856 INFO L130 BoogieDeclarations]: Found specification of procedure get_ptr_to_tcflag [2023-11-24 21:51:49,856 INFO L138 BoogieDeclarations]: Found implementation of procedure get_ptr_to_tcflag [2023-11-24 21:51:49,856 INFO L130 BoogieDeclarations]: Found specification of procedure tcgetattr [2023-11-24 21:51:49,856 INFO L138 BoogieDeclarations]: Found implementation of procedure tcgetattr [2023-11-24 21:51:49,856 INFO L130 BoogieDeclarations]: Found specification of procedure recover_mode [2023-11-24 21:51:49,856 INFO L138 BoogieDeclarations]: Found implementation of procedure recover_mode [2023-11-24 21:51:49,857 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-24 21:51:49,857 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-24 21:51:49,857 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-24 21:51:49,857 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-24 21:51:49,858 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-24 21:51:49,858 INFO L130 BoogieDeclarations]: Found specification of procedure set_speed_or_die [2023-11-24 21:51:49,858 INFO L138 BoogieDeclarations]: Found implementation of procedure set_speed_or_die [2023-11-24 21:51:49,858 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-24 21:51:49,858 INFO L130 BoogieDeclarations]: Found specification of procedure xstrtoull_range_sfx [2023-11-24 21:51:49,858 INFO L138 BoogieDeclarations]: Found implementation of procedure xstrtoull_range_sfx [2023-11-24 21:51:49,859 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-24 21:51:49,859 INFO L130 BoogieDeclarations]: Found specification of procedure ioctl [2023-11-24 21:51:49,859 INFO L138 BoogieDeclarations]: Found implementation of procedure ioctl [2023-11-24 21:51:49,859 INFO L130 BoogieDeclarations]: Found specification of procedure find_control [2023-11-24 21:51:49,859 INFO L138 BoogieDeclarations]: Found implementation of procedure find_control [2023-11-24 21:51:49,859 INFO L130 BoogieDeclarations]: Found specification of procedure xatou [2023-11-24 21:51:49,860 INFO L138 BoogieDeclarations]: Found implementation of procedure xatou [2023-11-24 21:51:49,860 INFO L130 BoogieDeclarations]: Found specification of procedure perror_on_device [2023-11-24 21:51:49,860 INFO L138 BoogieDeclarations]: Found implementation of procedure perror_on_device [2023-11-24 21:51:49,861 INFO L130 BoogieDeclarations]: Found specification of procedure wh_helper [2023-11-24 21:51:49,861 INFO L138 BoogieDeclarations]: Found implementation of procedure wh_helper [2023-11-24 21:51:49,862 INFO L130 BoogieDeclarations]: Found specification of procedure set_mode [2023-11-24 21:51:49,862 INFO L138 BoogieDeclarations]: Found implementation of procedure set_mode [2023-11-24 21:51:49,865 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2023-11-24 21:51:49,866 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-24 21:51:49,866 INFO L130 BoogieDeclarations]: Found specification of procedure index_in_strings [2023-11-24 21:51:49,866 INFO L138 BoogieDeclarations]: Found implementation of procedure index_in_strings [2023-11-24 21:51:49,867 INFO L130 BoogieDeclarations]: Found specification of procedure newline [2023-11-24 21:51:49,867 INFO L138 BoogieDeclarations]: Found implementation of procedure newline [2023-11-24 21:51:49,868 INFO L130 BoogieDeclarations]: Found specification of procedure wrapf [2023-11-24 21:51:49,868 INFO L138 BoogieDeclarations]: Found implementation of procedure wrapf [2023-11-24 21:51:49,868 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2023-11-24 21:51:49,875 INFO L130 BoogieDeclarations]: Found specification of procedure bb_error_msg_and_die [2023-11-24 21:51:49,875 INFO L138 BoogieDeclarations]: Found implementation of procedure bb_error_msg_and_die [2023-11-24 21:51:49,875 INFO L130 BoogieDeclarations]: Found specification of procedure display_window_size [2023-11-24 21:51:49,875 INFO L138 BoogieDeclarations]: Found implementation of procedure display_window_size [2023-11-24 21:51:49,876 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-24 21:51:50,620 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 21:51:50,625 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 21:51:54,849 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 21:51:55,084 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 21:51:55,084 INFO L309 CfgBuilder]: Removed 31 assume(true) statements. [2023-11-24 21:51:55,085 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 09:51:55 BoogieIcfgContainer [2023-11-24 21:51:55,085 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 21:51:55,088 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-24 21:51:55,088 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-24 21:51:55,092 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-24 21:51:55,092 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 09:51:45" (1/3) ... [2023-11-24 21:51:55,093 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@399f8939 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 09:51:55, skipping insertion in model container [2023-11-24 21:51:55,093 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:51:49" (2/3) ... [2023-11-24 21:51:55,093 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@399f8939 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 09:51:55, skipping insertion in model container [2023-11-24 21:51:55,093 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 09:51:55" (3/3) ... [2023-11-24 21:51:55,095 INFO L112 eAbstractionObserver]: Analyzing ICFG stty-2.i [2023-11-24 21:51:55,114 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-24 21:51:55,115 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 31 error locations. [2023-11-24 21:51:55,187 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-24 21:51:55,193 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;@16cabc6f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-24 21:51:55,194 INFO L358 AbstractCegarLoop]: Starting to check reachability of 31 error locations. [2023-11-24 21:51:55,205 INFO L276 IsEmpty]: Start isEmpty. Operand has 1004 states, 821 states have (on average 1.6370280146163216) internal successors, (1344), 864 states have internal predecessors, (1344), 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) [2023-11-24 21:51:55,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-11-24 21:51:55,243 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 21:51:55,243 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, 1, 1] [2023-11-24 21:51:55,246 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)] === [2023-11-24 21:51:55,254 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 21:51:55,255 INFO L85 PathProgramCache]: Analyzing trace with hash 62316464, now seen corresponding path program 1 times [2023-11-24 21:51:55,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-24 21:51:55,264 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1355193127] [2023-11-24 21:51:55,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 21:51:55,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 21:51:55,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:51:56,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-24 21:51:56,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:51:56,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-24 21:51:56,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:51:56,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-11-24 21:51:56,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:51:56,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-11-24 21:51:56,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:51:56,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-24 21:51:56,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:51:56,351 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 21:51:56,351 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-24 21:51:56,351 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1355193127] [2023-11-24 21:51:56,352 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1355193127] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 21:51:56,352 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 21:51:56,352 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-24 21:51:56,354 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1303262047] [2023-11-24 21:51:56,357 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 21:51:56,362 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 21:51:56,363 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-24 21:51:56,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 21:51:56,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 21:51:56,399 INFO L87 Difference]: Start difference. First operand has 1004 states, 821 states have (on average 1.6370280146163216) internal successors, (1344), 864 states have internal predecessors, (1344), 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 3 states, 3 states have (on average 15.0) internal successors, (45), 2 states have internal predecessors, (45), 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) [2023-11-24 21:51:58,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 21:51:58,672 INFO L93 Difference]: Finished difference Result 2091 states and 3392 transitions. [2023-11-24 21:51:58,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 21:51:58,674 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 2 states have internal predecessors, (45), 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 57 [2023-11-24 21:51:58,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 21:51:58,704 INFO L225 Difference]: With dead ends: 2091 [2023-11-24 21:51:58,704 INFO L226 Difference]: Without dead ends: 1030 [2023-11-24 21:51:58,718 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 21:51:58,721 INFO L413 NwaCegarLoop]: 1259 mSDtfsCounter, 514 mSDsluCounter, 637 mSDsCounter, 0 mSdLazyCounter, 507 mSolverCounterSat, 121 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 522 SdHoareTripleChecker+Valid, 1896 SdHoareTripleChecker+Invalid, 628 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 121 IncrementalHoareTripleChecker+Valid, 507 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2023-11-24 21:51:58,722 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [522 Valid, 1896 Invalid, 628 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [121 Valid, 507 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2023-11-24 21:51:58,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1030 states. [2023-11-24 21:51:58,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1030 to 931. [2023-11-24 21:51:58,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 931 states, 776 states have (on average 1.4922680412371134) internal successors, (1158), 816 states have internal predecessors, (1158), 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) [2023-11-24 21:51:58,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 931 states to 931 states and 1341 transitions. [2023-11-24 21:51:58,875 INFO L78 Accepts]: Start accepts. Automaton has 931 states and 1341 transitions. Word has length 57 [2023-11-24 21:51:58,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 21:51:58,875 INFO L495 AbstractCegarLoop]: Abstraction has 931 states and 1341 transitions. [2023-11-24 21:51:58,876 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 2 states have internal predecessors, (45), 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) [2023-11-24 21:51:58,876 INFO L276 IsEmpty]: Start isEmpty. Operand 931 states and 1341 transitions. [2023-11-24 21:51:58,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2023-11-24 21:51:58,880 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 21:51:58,880 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, 1, 1, 1, 1, 1] [2023-11-24 21:51:58,881 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-24 21:51:58,881 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)] === [2023-11-24 21:51:58,881 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 21:51:58,882 INFO L85 PathProgramCache]: Analyzing trace with hash -1703928003, now seen corresponding path program 1 times [2023-11-24 21:51:58,882 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-24 21:51:58,882 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2073323579] [2023-11-24 21:51:58,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 21:51:58,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 21:51:59,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:51:59,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-24 21:51:59,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:51:59,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-24 21:51:59,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:51:59,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-11-24 21:51:59,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:51:59,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-11-24 21:51:59,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:51:59,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-24 21:51:59,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:51:59,724 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 21:51:59,724 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-24 21:51:59,724 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2073323579] [2023-11-24 21:51:59,725 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2073323579] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 21:51:59,725 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 21:51:59,725 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-24 21:51:59,725 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1804673195] [2023-11-24 21:51:59,725 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 21:51:59,727 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-24 21:51:59,727 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-24 21:51:59,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-24 21:51:59,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-24 21:51:59,729 INFO L87 Difference]: Start difference. First operand 931 states and 1341 transitions. Second operand has 4 states, 4 states have (on average 12.0) internal successors, (48), 3 states have internal predecessors, (48), 2 states have call successors, (7), 3 states have call predecessors, (7), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-24 21:52:01,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 21:52:01,653 INFO L93 Difference]: Finished difference Result 1960 states and 2826 transitions. [2023-11-24 21:52:01,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-24 21:52:01,654 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 3 states have internal predecessors, (48), 2 states have call successors, (7), 3 states have call predecessors, (7), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 60 [2023-11-24 21:52:01,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 21:52:01,663 INFO L225 Difference]: With dead ends: 1960 [2023-11-24 21:52:01,663 INFO L226 Difference]: Without dead ends: 1031 [2023-11-24 21:52:01,666 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-24 21:52:01,667 INFO L413 NwaCegarLoop]: 1133 mSDtfsCounter, 508 mSDsluCounter, 1699 mSDsCounter, 0 mSdLazyCounter, 724 mSolverCounterSat, 95 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 516 SdHoareTripleChecker+Valid, 2832 SdHoareTripleChecker+Invalid, 819 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 95 IncrementalHoareTripleChecker+Valid, 724 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2023-11-24 21:52:01,668 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [516 Valid, 2832 Invalid, 819 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [95 Valid, 724 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2023-11-24 21:52:01,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1031 states. [2023-11-24 21:52:01,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1031 to 932. [2023-11-24 21:52:01,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 932 states, 777 states have (on average 1.4916344916344917) internal successors, (1159), 817 states have internal predecessors, (1159), 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) [2023-11-24 21:52:01,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 932 states to 932 states and 1342 transitions. [2023-11-24 21:52:01,762 INFO L78 Accepts]: Start accepts. Automaton has 932 states and 1342 transitions. Word has length 60 [2023-11-24 21:52:01,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 21:52:01,762 INFO L495 AbstractCegarLoop]: Abstraction has 932 states and 1342 transitions. [2023-11-24 21:52:01,763 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 3 states have internal predecessors, (48), 2 states have call successors, (7), 3 states have call predecessors, (7), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-24 21:52:01,763 INFO L276 IsEmpty]: Start isEmpty. Operand 932 states and 1342 transitions. [2023-11-24 21:52:01,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2023-11-24 21:52:01,767 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 21:52:01,767 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, 1, 1, 1, 1, 1, 1] [2023-11-24 21:52:01,767 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-24 21:52:01,768 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting get_ptr_to_tcflagErr0ASSERT_VIOLATIONERROR_FUNCTION === [set_control_char_or_dieErr0ASSERT_VIOLATIONERROR_FUNCTION, wrapfErr0ASSERT_VIOLATIONERROR_FUNCTION, set_modeErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2023-11-24 21:52:01,768 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 21:52:01,768 INFO L85 PathProgramCache]: Analyzing trace with hash 2083651845, now seen corresponding path program 1 times [2023-11-24 21:52:01,769 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-24 21:52:01,769 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2103768427] [2023-11-24 21:52:01,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 21:52:01,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 21:52:01,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:52:02,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-11-24 21:52:02,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:52:02,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-11-24 21:52:02,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:52:02,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-11-24 21:52:02,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:52:02,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-11-24 21:52:02,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:52:02,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-24 21:52:02,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:52:02,689 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 21:52:02,689 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-24 21:52:02,690 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2103768427] [2023-11-24 21:52:02,690 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2103768427] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-24 21:52:02,692 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1165472039] [2023-11-24 21:52:02,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 21:52:02,693 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-24 21:52:02,693 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04100bcd-5aa6-49cb-8ae1-ae4fca517441/bin/uautomizer-verify-NlZe1sFDwI/z3 [2023-11-24 21:52:02,700 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04100bcd-5aa6-49cb-8ae1-ae4fca517441/bin/uautomizer-verify-NlZe1sFDwI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-24 21:52:02,710 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04100bcd-5aa6-49cb-8ae1-ae4fca517441/bin/uautomizer-verify-NlZe1sFDwI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-24 21:52:03,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:52:03,900 INFO L262 TraceCheckSpWp]: Trace formula consists of 3265 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-24 21:52:03,910 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 21:52:03,963 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-24 21:52:03,976 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 21:52:03,977 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1165472039] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 21:52:03,977 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-24 21:52:03,977 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2023-11-24 21:52:03,977 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1731893953] [2023-11-24 21:52:03,978 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 21:52:03,978 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 21:52:03,978 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-24 21:52:03,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 21:52:03,979 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-24 21:52:03,980 INFO L87 Difference]: Start difference. First operand 932 states and 1342 transitions. Second operand has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-24 21:52:04,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 21:52:04,821 INFO L93 Difference]: Finished difference Result 2174 states and 3142 transitions. [2023-11-24 21:52:04,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 21:52:04,822 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 61 [2023-11-24 21:52:04,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 21:52:04,833 INFO L225 Difference]: With dead ends: 2174 [2023-11-24 21:52:04,833 INFO L226 Difference]: Without dead ends: 1255 [2023-11-24 21:52:04,839 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-24 21:52:04,842 INFO L413 NwaCegarLoop]: 1281 mSDtfsCounter, 342 mSDsluCounter, 1245 mSDsCounter, 0 mSdLazyCounter, 166 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 392 SdHoareTripleChecker+Valid, 2526 SdHoareTripleChecker+Invalid, 188 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 166 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-24 21:52:04,843 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [392 Valid, 2526 Invalid, 188 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 166 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-24 21:52:04,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1255 states. [2023-11-24 21:52:04,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1255 to 1039. [2023-11-24 21:52:04,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1039 states, 867 states have (on average 1.4798154555940024) internal successors, (1283), 909 states have internal predecessors, (1283), 109 states have call successors, (109), 32 states have call predecessors, (109), 32 states have return successors, (108), 103 states have call predecessors, (108), 108 states have call successors, (108) [2023-11-24 21:52:04,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1039 states to 1039 states and 1500 transitions. [2023-11-24 21:52:04,911 INFO L78 Accepts]: Start accepts. Automaton has 1039 states and 1500 transitions. Word has length 61 [2023-11-24 21:52:04,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 21:52:04,912 INFO L495 AbstractCegarLoop]: Abstraction has 1039 states and 1500 transitions. [2023-11-24 21:52:04,912 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-24 21:52:04,912 INFO L276 IsEmpty]: Start isEmpty. Operand 1039 states and 1500 transitions. [2023-11-24 21:52:04,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-11-24 21:52:04,914 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 21:52:04,914 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 21:52:04,932 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04100bcd-5aa6-49cb-8ae1-ae4fca517441/bin/uautomizer-verify-NlZe1sFDwI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-24 21:52:05,126 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04100bcd-5aa6-49cb-8ae1-ae4fca517441/bin/uautomizer-verify-NlZe1sFDwI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-24 21:52:05,126 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting get_ptr_to_tcflagErr0ASSERT_VIOLATIONERROR_FUNCTION === [set_control_char_or_dieErr0ASSERT_VIOLATIONERROR_FUNCTION, wrapfErr0ASSERT_VIOLATIONERROR_FUNCTION, set_modeErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2023-11-24 21:52:05,127 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 21:52:05,127 INFO L85 PathProgramCache]: Analyzing trace with hash 940075152, now seen corresponding path program 1 times [2023-11-24 21:52:05,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-24 21:52:05,127 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1859272376] [2023-11-24 21:52:05,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 21:52:05,127 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 21:52:05,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:52:05,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-11-24 21:52:05,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:52:05,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-11-24 21:52:05,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:52:05,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-24 21:52:05,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:52:05,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-11-24 21:52:05,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:52:05,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-24 21:52:05,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:52:05,861 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 21:52:05,862 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-24 21:52:05,862 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1859272376] [2023-11-24 21:52:05,862 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1859272376] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-24 21:52:05,862 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1066197096] [2023-11-24 21:52:05,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 21:52:05,863 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-24 21:52:05,863 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04100bcd-5aa6-49cb-8ae1-ae4fca517441/bin/uautomizer-verify-NlZe1sFDwI/z3 [2023-11-24 21:52:05,864 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04100bcd-5aa6-49cb-8ae1-ae4fca517441/bin/uautomizer-verify-NlZe1sFDwI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-24 21:52:05,872 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04100bcd-5aa6-49cb-8ae1-ae4fca517441/bin/uautomizer-verify-NlZe1sFDwI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-24 21:52:06,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:52:06,920 INFO L262 TraceCheckSpWp]: Trace formula consists of 3272 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-24 21:52:06,927 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 21:52:07,013 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-24 21:52:07,013 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 21:52:07,014 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1066197096] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 21:52:07,014 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-24 21:52:07,014 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2023-11-24 21:52:07,014 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [139678644] [2023-11-24 21:52:07,015 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 21:52:07,015 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 21:52:07,015 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-24 21:52:07,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 21:52:07,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-24 21:52:07,017 INFO L87 Difference]: Start difference. First operand 1039 states and 1500 transitions. Second operand has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 3 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2023-11-24 21:52:07,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 21:52:07,891 INFO L93 Difference]: Finished difference Result 2081 states and 2984 transitions. [2023-11-24 21:52:07,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 21:52:07,892 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 3 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) Word has length 64 [2023-11-24 21:52:07,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 21:52:07,903 INFO L225 Difference]: With dead ends: 2081 [2023-11-24 21:52:07,903 INFO L226 Difference]: Without dead ends: 1292 [2023-11-24 21:52:07,907 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-24 21:52:07,908 INFO L413 NwaCegarLoop]: 1272 mSDtfsCounter, 333 mSDsluCounter, 1244 mSDsCounter, 0 mSdLazyCounter, 154 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 381 SdHoareTripleChecker+Valid, 2516 SdHoareTripleChecker+Invalid, 171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 154 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-24 21:52:07,909 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [381 Valid, 2516 Invalid, 171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 154 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-24 21:52:07,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1292 states. [2023-11-24 21:52:07,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1292 to 1078. [2023-11-24 21:52:07,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1078 states, 900 states have (on average 1.478888888888889) internal successors, (1331), 942 states have internal predecessors, (1331), 115 states have call successors, (115), 32 states have call predecessors, (115), 32 states have return successors, (114), 109 states have call predecessors, (114), 114 states have call successors, (114) [2023-11-24 21:52:07,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1078 states to 1078 states and 1560 transitions. [2023-11-24 21:52:07,965 INFO L78 Accepts]: Start accepts. Automaton has 1078 states and 1560 transitions. Word has length 64 [2023-11-24 21:52:07,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 21:52:07,965 INFO L495 AbstractCegarLoop]: Abstraction has 1078 states and 1560 transitions. [2023-11-24 21:52:07,966 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 3 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2023-11-24 21:52:07,966 INFO L276 IsEmpty]: Start isEmpty. Operand 1078 states and 1560 transitions. [2023-11-24 21:52:07,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-11-24 21:52:07,968 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 21:52:07,968 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 21:52:07,995 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04100bcd-5aa6-49cb-8ae1-ae4fca517441/bin/uautomizer-verify-NlZe1sFDwI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-24 21:52:08,190 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04100bcd-5aa6-49cb-8ae1-ae4fca517441/bin/uautomizer-verify-NlZe1sFDwI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-24 21:52:08,191 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting get_ptr_to_tcflagErr0ASSERT_VIOLATIONERROR_FUNCTION === [set_control_char_or_dieErr0ASSERT_VIOLATIONERROR_FUNCTION, wrapfErr0ASSERT_VIOLATIONERROR_FUNCTION, set_modeErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2023-11-24 21:52:08,191 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 21:52:08,192 INFO L85 PathProgramCache]: Analyzing trace with hash -1431664110, now seen corresponding path program 1 times [2023-11-24 21:52:08,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-24 21:52:08,193 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2132050916] [2023-11-24 21:52:08,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 21:52:08,193 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 21:52:08,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:52:08,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-11-24 21:52:08,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:52:08,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-11-24 21:52:08,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:52:08,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-24 21:52:08,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:52:08,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-11-24 21:52:08,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:52:08,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-24 21:52:08,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:52:08,946 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 21:52:08,947 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-24 21:52:08,947 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2132050916] [2023-11-24 21:52:08,947 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2132050916] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-24 21:52:08,947 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1260106204] [2023-11-24 21:52:08,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 21:52:08,948 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-24 21:52:08,948 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04100bcd-5aa6-49cb-8ae1-ae4fca517441/bin/uautomizer-verify-NlZe1sFDwI/z3 [2023-11-24 21:52:08,949 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04100bcd-5aa6-49cb-8ae1-ae4fca517441/bin/uautomizer-verify-NlZe1sFDwI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-24 21:52:08,968 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04100bcd-5aa6-49cb-8ae1-ae4fca517441/bin/uautomizer-verify-NlZe1sFDwI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-24 21:52:10,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:52:10,045 INFO L262 TraceCheckSpWp]: Trace formula consists of 3274 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-24 21:52:10,051 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 21:52:10,075 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-24 21:52:10,075 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 21:52:10,076 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1260106204] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 21:52:10,076 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-24 21:52:10,076 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2023-11-24 21:52:10,076 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [620652112] [2023-11-24 21:52:10,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 21:52:10,077 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 21:52:10,077 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-24 21:52:10,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 21:52:10,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-24 21:52:10,078 INFO L87 Difference]: Start difference. First operand 1078 states and 1560 transitions. Second operand has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 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) [2023-11-24 21:52:10,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 21:52:10,732 INFO L93 Difference]: Finished difference Result 1080 states and 1564 transitions. [2023-11-24 21:52:10,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 21:52:10,733 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 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 64 [2023-11-24 21:52:10,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 21:52:10,741 INFO L225 Difference]: With dead ends: 1080 [2023-11-24 21:52:10,741 INFO L226 Difference]: Without dead ends: 1078 [2023-11-24 21:52:10,742 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-24 21:52:10,742 INFO L413 NwaCegarLoop]: 1303 mSDtfsCounter, 3 mSDsluCounter, 1299 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 2602 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-24 21:52:10,743 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 2602 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-24 21:52:10,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1078 states. [2023-11-24 21:52:10,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1078 to 1076. [2023-11-24 21:52:10,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1076 states, 899 states have (on average 1.478309232480534) internal successors, (1329), 940 states have internal predecessors, (1329), 115 states have call successors, (115), 32 states have call predecessors, (115), 32 states have return successors, (114), 109 states have call predecessors, (114), 114 states have call successors, (114) [2023-11-24 21:52:10,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1076 states to 1076 states and 1558 transitions. [2023-11-24 21:52:10,788 INFO L78 Accepts]: Start accepts. Automaton has 1076 states and 1558 transitions. Word has length 64 [2023-11-24 21:52:10,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 21:52:10,789 INFO L495 AbstractCegarLoop]: Abstraction has 1076 states and 1558 transitions. [2023-11-24 21:52:10,789 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 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) [2023-11-24 21:52:10,789 INFO L276 IsEmpty]: Start isEmpty. Operand 1076 states and 1558 transitions. [2023-11-24 21:52:10,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-11-24 21:52:10,792 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 21:52:10,792 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 21:52:10,810 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04100bcd-5aa6-49cb-8ae1-ae4fca517441/bin/uautomizer-verify-NlZe1sFDwI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-24 21:52:11,004 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04100bcd-5aa6-49cb-8ae1-ae4fca517441/bin/uautomizer-verify-NlZe1sFDwI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-24 21:52:11,005 INFO L420 AbstractCegarLoop]: === Iteration 6 === 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)] === [2023-11-24 21:52:11,005 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 21:52:11,005 INFO L85 PathProgramCache]: Analyzing trace with hash 1286073830, now seen corresponding path program 1 times [2023-11-24 21:52:11,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-24 21:52:11,005 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1271099515] [2023-11-24 21:52:11,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 21:52:11,006 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 21:52:11,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:52:11,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-11-24 21:52:11,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:52:11,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-24 21:52:11,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:52:11,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-24 21:52:11,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:52:11,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-24 21:52:11,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:52:11,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-24 21:52:11,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:52:11,693 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-24 21:52:11,693 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-24 21:52:11,693 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1271099515] [2023-11-24 21:52:11,694 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1271099515] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-24 21:52:11,694 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [47047209] [2023-11-24 21:52:11,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 21:52:11,694 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-24 21:52:11,695 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04100bcd-5aa6-49cb-8ae1-ae4fca517441/bin/uautomizer-verify-NlZe1sFDwI/z3 [2023-11-24 21:52:11,696 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04100bcd-5aa6-49cb-8ae1-ae4fca517441/bin/uautomizer-verify-NlZe1sFDwI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-24 21:52:11,720 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04100bcd-5aa6-49cb-8ae1-ae4fca517441/bin/uautomizer-verify-NlZe1sFDwI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-24 21:52:12,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:52:12,760 INFO L262 TraceCheckSpWp]: Trace formula consists of 3292 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-24 21:52:12,765 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 21:52:12,787 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-24 21:52:12,787 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-24 21:52:12,844 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-24 21:52:12,844 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [47047209] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-24 21:52:12,844 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-24 21:52:12,844 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 3, 4] total 7 [2023-11-24 21:52:12,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [63374228] [2023-11-24 21:52:12,845 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-24 21:52:12,846 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-24 21:52:12,846 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-24 21:52:12,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-24 21:52:12,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-11-24 21:52:12,848 INFO L87 Difference]: Start difference. First operand 1076 states and 1558 transitions. Second operand has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 7 states have internal predecessors, (71), 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) [2023-11-24 21:52:13,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 21:52:13,410 INFO L93 Difference]: Finished difference Result 2152 states and 3118 transitions. [2023-11-24 21:52:13,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-24 21:52:13,410 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 7 states have internal predecessors, (71), 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 66 [2023-11-24 21:52:13,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 21:52:13,418 INFO L225 Difference]: With dead ends: 2152 [2023-11-24 21:52:13,419 INFO L226 Difference]: Without dead ends: 1079 [2023-11-24 21:52:13,423 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-11-24 21:52:13,424 INFO L413 NwaCegarLoop]: 1301 mSDtfsCounter, 0 mSDsluCounter, 3897 mSDsCounter, 0 mSdLazyCounter, 156 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 5198 SdHoareTripleChecker+Invalid, 157 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 156 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-24 21:52:13,424 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 5198 Invalid, 157 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 156 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-24 21:52:13,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1079 states. [2023-11-24 21:52:13,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1079 to 1079. [2023-11-24 21:52:13,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1079 states, 902 states have (on average 1.476718403547672) internal successors, (1332), 943 states have internal predecessors, (1332), 115 states have call successors, (115), 32 states have call predecessors, (115), 32 states have return successors, (114), 109 states have call predecessors, (114), 114 states have call successors, (114) [2023-11-24 21:52:13,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1079 states to 1079 states and 1561 transitions. [2023-11-24 21:52:13,472 INFO L78 Accepts]: Start accepts. Automaton has 1079 states and 1561 transitions. Word has length 66 [2023-11-24 21:52:13,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 21:52:13,473 INFO L495 AbstractCegarLoop]: Abstraction has 1079 states and 1561 transitions. [2023-11-24 21:52:13,473 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 7 states have internal predecessors, (71), 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) [2023-11-24 21:52:13,473 INFO L276 IsEmpty]: Start isEmpty. Operand 1079 states and 1561 transitions. [2023-11-24 21:52:13,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2023-11-24 21:52:13,476 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 21:52:13,477 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 21:52:13,495 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04100bcd-5aa6-49cb-8ae1-ae4fca517441/bin/uautomizer-verify-NlZe1sFDwI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-24 21:52:13,696 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04100bcd-5aa6-49cb-8ae1-ae4fca517441/bin/uautomizer-verify-NlZe1sFDwI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-24 21:52:13,696 INFO L420 AbstractCegarLoop]: === Iteration 7 === 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)] === [2023-11-24 21:52:13,697 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 21:52:13,697 INFO L85 PathProgramCache]: Analyzing trace with hash 920453294, now seen corresponding path program 2 times [2023-11-24 21:52:13,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-24 21:52:13,697 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [751450021] [2023-11-24 21:52:13,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 21:52:13,698 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 21:52:13,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:52:14,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-24 21:52:14,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:52:14,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-24 21:52:14,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:52:14,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-24 21:52:14,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:52:14,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-11-24 21:52:14,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:52:14,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-24 21:52:14,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:52:14,629 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-24 21:52:14,629 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-24 21:52:14,629 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [751450021] [2023-11-24 21:52:14,629 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [751450021] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 21:52:14,629 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 21:52:14,630 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-24 21:52:14,630 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [147374514] [2023-11-24 21:52:14,630 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 21:52:14,630 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-24 21:52:14,631 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-24 21:52:14,631 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-24 21:52:14,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-24 21:52:14,632 INFO L87 Difference]: Start difference. First operand 1079 states and 1561 transitions. Second operand has 7 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 3 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 4 states have call predecessors, (5), 3 states have call successors, (5) [2023-11-24 21:52:16,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 21:52:16,813 INFO L93 Difference]: Finished difference Result 2115 states and 3069 transitions. [2023-11-24 21:52:16,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-24 21:52:16,814 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 3 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 4 states have call predecessors, (5), 3 states have call successors, (5) Word has length 69 [2023-11-24 21:52:16,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 21:52:16,822 INFO L225 Difference]: With dead ends: 2115 [2023-11-24 21:52:16,822 INFO L226 Difference]: Without dead ends: 1091 [2023-11-24 21:52:16,826 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2023-11-24 21:52:16,827 INFO L413 NwaCegarLoop]: 1251 mSDtfsCounter, 1341 mSDsluCounter, 4628 mSDsCounter, 0 mSdLazyCounter, 815 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1345 SdHoareTripleChecker+Valid, 5879 SdHoareTripleChecker+Invalid, 815 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 815 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2023-11-24 21:52:16,828 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1345 Valid, 5879 Invalid, 815 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 815 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2023-11-24 21:52:16,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1091 states. [2023-11-24 21:52:16,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1091 to 1085. [2023-11-24 21:52:16,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1085 states, 907 states have (on average 1.474090407938258) internal successors, (1337), 947 states have internal predecessors, (1337), 115 states have call successors, (115), 32 states have call predecessors, (115), 33 states have return successors, (120), 111 states have call predecessors, (120), 114 states have call successors, (120) [2023-11-24 21:52:16,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1085 states to 1085 states and 1572 transitions. [2023-11-24 21:52:16,877 INFO L78 Accepts]: Start accepts. Automaton has 1085 states and 1572 transitions. Word has length 69 [2023-11-24 21:52:16,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 21:52:16,879 INFO L495 AbstractCegarLoop]: Abstraction has 1085 states and 1572 transitions. [2023-11-24 21:52:16,879 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 3 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 4 states have call predecessors, (5), 3 states have call successors, (5) [2023-11-24 21:52:16,879 INFO L276 IsEmpty]: Start isEmpty. Operand 1085 states and 1572 transitions. [2023-11-24 21:52:16,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2023-11-24 21:52:16,883 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 21:52:16,883 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 21:52:16,883 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-24 21:52:16,883 INFO L420 AbstractCegarLoop]: === Iteration 8 === 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)] === [2023-11-24 21:52:16,884 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 21:52:16,884 INFO L85 PathProgramCache]: Analyzing trace with hash -108906004, now seen corresponding path program 1 times [2023-11-24 21:52:16,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-24 21:52:16,884 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1097278903] [2023-11-24 21:52:16,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 21:52:16,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 21:52:17,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:52:17,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-24 21:52:17,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:52:17,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-24 21:52:17,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:52:17,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-24 21:52:17,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:52:17,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-11-24 21:52:17,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:52:17,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-24 21:52:17,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:52:17,672 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-24 21:52:17,672 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-24 21:52:17,672 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1097278903] [2023-11-24 21:52:17,673 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1097278903] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-24 21:52:17,673 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1218909019] [2023-11-24 21:52:17,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 21:52:17,673 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-24 21:52:17,674 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04100bcd-5aa6-49cb-8ae1-ae4fca517441/bin/uautomizer-verify-NlZe1sFDwI/z3 [2023-11-24 21:52:17,675 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04100bcd-5aa6-49cb-8ae1-ae4fca517441/bin/uautomizer-verify-NlZe1sFDwI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-24 21:52:17,686 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04100bcd-5aa6-49cb-8ae1-ae4fca517441/bin/uautomizer-verify-NlZe1sFDwI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-24 21:52:18,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:52:18,760 INFO L262 TraceCheckSpWp]: Trace formula consists of 3343 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-24 21:52:18,764 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 21:52:18,787 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-24 21:52:18,787 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-24 21:52:18,879 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-24 21:52:18,880 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1218909019] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-24 21:52:18,880 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-24 21:52:18,880 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 7] total 13 [2023-11-24 21:52:18,880 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [153044103] [2023-11-24 21:52:18,880 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-24 21:52:18,881 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-24 21:52:18,881 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-24 21:52:18,881 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-24 21:52:18,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2023-11-24 21:52:18,882 INFO L87 Difference]: Start difference. First operand 1085 states and 1572 transitions. Second operand has 13 states, 13 states have (on average 5.923076923076923) internal successors, (77), 13 states have internal predecessors, (77), 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) [2023-11-24 21:52:19,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 21:52:19,557 INFO L93 Difference]: Finished difference Result 2170 states and 3149 transitions. [2023-11-24 21:52:19,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-24 21:52:19,558 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.923076923076923) internal successors, (77), 13 states have internal predecessors, (77), 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 69 [2023-11-24 21:52:19,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 21:52:19,565 INFO L225 Difference]: With dead ends: 2170 [2023-11-24 21:52:19,566 INFO L226 Difference]: Without dead ends: 1091 [2023-11-24 21:52:19,569 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 141 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2023-11-24 21:52:19,570 INFO L413 NwaCegarLoop]: 1301 mSDtfsCounter, 0 mSDsluCounter, 7794 mSDsCounter, 0 mSdLazyCounter, 277 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 9095 SdHoareTripleChecker+Invalid, 278 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 277 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-24 21:52:19,571 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 9095 Invalid, 278 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 277 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-24 21:52:19,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1091 states. [2023-11-24 21:52:19,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1091 to 1091. [2023-11-24 21:52:19,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1091 states, 913 states have (on average 1.470974808324206) internal successors, (1343), 953 states have internal predecessors, (1343), 115 states have call successors, (115), 32 states have call predecessors, (115), 33 states have return successors, (120), 111 states have call predecessors, (120), 114 states have call successors, (120) [2023-11-24 21:52:19,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1091 states to 1091 states and 1578 transitions. [2023-11-24 21:52:19,618 INFO L78 Accepts]: Start accepts. Automaton has 1091 states and 1578 transitions. Word has length 69 [2023-11-24 21:52:19,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 21:52:19,618 INFO L495 AbstractCegarLoop]: Abstraction has 1091 states and 1578 transitions. [2023-11-24 21:52:19,619 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.923076923076923) internal successors, (77), 13 states have internal predecessors, (77), 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) [2023-11-24 21:52:19,619 INFO L276 IsEmpty]: Start isEmpty. Operand 1091 states and 1578 transitions. [2023-11-24 21:52:19,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2023-11-24 21:52:19,621 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 21:52:19,622 INFO L195 NwaCegarLoop]: trace histogram [10, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 21:52:19,649 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04100bcd-5aa6-49cb-8ae1-ae4fca517441/bin/uautomizer-verify-NlZe1sFDwI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-24 21:52:19,842 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04100bcd-5aa6-49cb-8ae1-ae4fca517441/bin/uautomizer-verify-NlZe1sFDwI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-24 21:52:19,842 INFO L420 AbstractCegarLoop]: === Iteration 9 === 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)] === [2023-11-24 21:52:19,843 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 21:52:19,843 INFO L85 PathProgramCache]: Analyzing trace with hash 573877996, now seen corresponding path program 2 times [2023-11-24 21:52:19,843 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-24 21:52:19,843 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1252549917] [2023-11-24 21:52:19,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 21:52:19,844 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 21:52:20,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:52:20,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-24 21:52:20,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:52:20,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-11-24 21:52:20,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:52:20,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-24 21:52:20,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:52:20,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-11-24 21:52:20,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:52:20,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-24 21:52:20,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:52:20,494 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 59 trivial. 0 not checked. [2023-11-24 21:52:20,494 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-24 21:52:20,494 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1252549917] [2023-11-24 21:52:20,494 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1252549917] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 21:52:20,494 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 21:52:20,494 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-24 21:52:20,494 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [459289637] [2023-11-24 21:52:20,495 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 21:52:20,495 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-24 21:52:20,495 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-24 21:52:20,496 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-24 21:52:20,496 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-24 21:52:20,496 INFO L87 Difference]: Start difference. First operand 1091 states and 1578 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 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) [2023-11-24 21:52:21,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 21:52:21,790 INFO L93 Difference]: Finished difference Result 2124 states and 3084 transitions. [2023-11-24 21:52:21,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-24 21:52:21,790 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 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) Word has length 75 [2023-11-24 21:52:21,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 21:52:21,799 INFO L225 Difference]: With dead ends: 2124 [2023-11-24 21:52:21,799 INFO L226 Difference]: Without dead ends: 1097 [2023-11-24 21:52:21,803 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-24 21:52:21,804 INFO L413 NwaCegarLoop]: 1299 mSDtfsCounter, 2 mSDsluCounter, 3893 mSDsCounter, 0 mSdLazyCounter, 162 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 5192 SdHoareTripleChecker+Invalid, 163 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-11-24 21:52:21,805 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 5192 Invalid, 163 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 162 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-11-24 21:52:21,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1097 states. [2023-11-24 21:52:21,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1097 to 1095. [2023-11-24 21:52:21,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1095 states, 916 states have (on average 1.4694323144104804) internal successors, (1346), 956 states have internal predecessors, (1346), 115 states have call successors, (115), 32 states have call predecessors, (115), 34 states have return successors, (123), 112 states have call predecessors, (123), 114 states have call successors, (123) [2023-11-24 21:52:21,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1095 states to 1095 states and 1584 transitions. [2023-11-24 21:52:21,854 INFO L78 Accepts]: Start accepts. Automaton has 1095 states and 1584 transitions. Word has length 75 [2023-11-24 21:52:21,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 21:52:21,855 INFO L495 AbstractCegarLoop]: Abstraction has 1095 states and 1584 transitions. [2023-11-24 21:52:21,855 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 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) [2023-11-24 21:52:21,855 INFO L276 IsEmpty]: Start isEmpty. Operand 1095 states and 1584 transitions. [2023-11-24 21:52:21,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2023-11-24 21:52:21,858 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 21:52:21,858 INFO L195 NwaCegarLoop]: trace histogram [10, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 21:52:21,859 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-24 21:52:21,859 INFO L420 AbstractCegarLoop]: === Iteration 10 === 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)] === [2023-11-24 21:52:21,859 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 21:52:21,860 INFO L85 PathProgramCache]: Analyzing trace with hash -1231560338, now seen corresponding path program 1 times [2023-11-24 21:52:21,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-24 21:52:21,860 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [198709229] [2023-11-24 21:52:21,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 21:52:21,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 21:52:22,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:52:22,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-24 21:52:22,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:52:22,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-11-24 21:52:22,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:52:22,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-24 21:52:22,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:52:22,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-11-24 21:52:22,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:52:22,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-24 21:52:22,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:52:23,000 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2023-11-24 21:52:23,000 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-24 21:52:23,001 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [198709229] [2023-11-24 21:52:23,001 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [198709229] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 21:52:23,001 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 21:52:23,001 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-24 21:52:23,001 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [193941415] [2023-11-24 21:52:23,002 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 21:52:23,002 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-24 21:52:23,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-24 21:52:23,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-24 21:52:23,003 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-24 21:52:23,003 INFO L87 Difference]: Start difference. First operand 1095 states and 1584 transitions. Second operand has 6 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-24 21:52:24,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 21:52:24,419 INFO L93 Difference]: Finished difference Result 2102 states and 3043 transitions. [2023-11-24 21:52:24,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-24 21:52:24,420 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) Word has length 75 [2023-11-24 21:52:24,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 21:52:24,428 INFO L225 Difference]: With dead ends: 2102 [2023-11-24 21:52:24,428 INFO L226 Difference]: Without dead ends: 1102 [2023-11-24 21:52:24,432 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-11-24 21:52:24,433 INFO L413 NwaCegarLoop]: 1300 mSDtfsCounter, 38 mSDsluCounter, 5149 mSDsCounter, 0 mSdLazyCounter, 206 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 6449 SdHoareTripleChecker+Invalid, 207 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 206 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-11-24 21:52:24,433 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 6449 Invalid, 207 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 206 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-11-24 21:52:24,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1102 states. [2023-11-24 21:52:24,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1102 to 1101. [2023-11-24 21:52:24,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1101 states, 921 states have (on average 1.4668838219326819) internal successors, (1351), 960 states have internal predecessors, (1351), 115 states have call successors, (115), 32 states have call predecessors, (115), 35 states have return successors, (126), 114 states have call predecessors, (126), 114 states have call successors, (126) [2023-11-24 21:52:24,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1101 states to 1101 states and 1592 transitions. [2023-11-24 21:52:24,480 INFO L78 Accepts]: Start accepts. Automaton has 1101 states and 1592 transitions. Word has length 75 [2023-11-24 21:52:24,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 21:52:24,480 INFO L495 AbstractCegarLoop]: Abstraction has 1101 states and 1592 transitions. [2023-11-24 21:52:24,481 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-24 21:52:24,481 INFO L276 IsEmpty]: Start isEmpty. Operand 1101 states and 1592 transitions. [2023-11-24 21:52:24,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2023-11-24 21:52:24,483 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 21:52:24,484 INFO L195 NwaCegarLoop]: trace histogram [10, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 21:52:24,484 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-24 21:52:24,484 INFO L420 AbstractCegarLoop]: === Iteration 11 === 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)] === [2023-11-24 21:52:24,485 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 21:52:24,485 INFO L85 PathProgramCache]: Analyzing trace with hash -448697883, now seen corresponding path program 1 times [2023-11-24 21:52:24,485 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-24 21:52:24,485 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [428202364] [2023-11-24 21:52:24,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 21:52:24,486 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 21:52:24,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:52:25,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-24 21:52:25,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:52:25,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-11-24 21:52:25,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:52:25,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-24 21:52:25,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:52:25,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-11-24 21:52:25,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:52:25,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-24 21:52:25,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:52:25,729 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2023-11-24 21:52:25,729 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-24 21:52:25,729 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [428202364] [2023-11-24 21:52:25,729 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [428202364] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 21:52:25,730 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 21:52:25,730 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-11-24 21:52:25,732 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2116245776] [2023-11-24 21:52:25,733 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 21:52:25,733 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-24 21:52:25,733 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-24 21:52:25,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-24 21:52:25,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2023-11-24 21:52:25,735 INFO L87 Difference]: Start difference. First operand 1101 states and 1592 transitions. Second operand has 12 states, 11 states have (on average 5.0) internal successors, (55), 9 states have internal predecessors, (55), 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) [2023-11-24 21:52:29,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 21:52:29,480 INFO L93 Difference]: Finished difference Result 2229 states and 3245 transitions. [2023-11-24 21:52:29,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-24 21:52:29,481 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 5.0) internal successors, (55), 9 states have internal predecessors, (55), 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) Word has length 75 [2023-11-24 21:52:29,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 21:52:29,492 INFO L225 Difference]: With dead ends: 2229 [2023-11-24 21:52:29,492 INFO L226 Difference]: Without dead ends: 1227 [2023-11-24 21:52:29,497 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2023-11-24 21:52:29,498 INFO L413 NwaCegarLoop]: 1313 mSDtfsCounter, 165 mSDsluCounter, 12977 mSDsCounter, 0 mSdLazyCounter, 679 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 173 SdHoareTripleChecker+Valid, 14290 SdHoareTripleChecker+Invalid, 686 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 679 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2023-11-24 21:52:29,498 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [173 Valid, 14290 Invalid, 686 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [7 Valid, 679 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2023-11-24 21:52:29,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1227 states. [2023-11-24 21:52:29,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1227 to 1157. [2023-11-24 21:52:29,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1157 states, 970 states have (on average 1.4701030927835053) internal successors, (1426), 1010 states have internal predecessors, (1426), 119 states have call successors, (119), 33 states have call predecessors, (119), 38 states have return successors, (136), 119 states have call predecessors, (136), 118 states have call successors, (136) [2023-11-24 21:52:29,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1157 states to 1157 states and 1681 transitions. [2023-11-24 21:52:29,597 INFO L78 Accepts]: Start accepts. Automaton has 1157 states and 1681 transitions. Word has length 75 [2023-11-24 21:52:29,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 21:52:29,599 INFO L495 AbstractCegarLoop]: Abstraction has 1157 states and 1681 transitions. [2023-11-24 21:52:29,599 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 5.0) internal successors, (55), 9 states have internal predecessors, (55), 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) [2023-11-24 21:52:29,600 INFO L276 IsEmpty]: Start isEmpty. Operand 1157 states and 1681 transitions. [2023-11-24 21:52:29,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2023-11-24 21:52:29,603 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 21:52:29,603 INFO L195 NwaCegarLoop]: trace histogram [10, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 21:52:29,604 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-24 21:52:29,606 INFO L420 AbstractCegarLoop]: === Iteration 12 === 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)] === [2023-11-24 21:52:29,606 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 21:52:29,607 INFO L85 PathProgramCache]: Analyzing trace with hash -1728561561, now seen corresponding path program 1 times [2023-11-24 21:52:29,607 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-24 21:52:29,607 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [282067145] [2023-11-24 21:52:29,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 21:52:29,608 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 21:52:29,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat