./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-usb-dvb-usb-v2-dvb-usb-mxl111sf.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9128a1e3-d31e-4101-8b7a-b4bcd9813e67/bin/utaipan-eEHZpOm5b7/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9128a1e3-d31e-4101-8b7a-b4bcd9813e67/bin/utaipan-eEHZpOm5b7/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9128a1e3-d31e-4101-8b7a-b4bcd9813e67/bin/utaipan-eEHZpOm5b7/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9128a1e3-d31e-4101-8b7a-b4bcd9813e67/bin/utaipan-eEHZpOm5b7/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-usb-dvb-usb-v2-dvb-usb-mxl111sf.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9128a1e3-d31e-4101-8b7a-b4bcd9813e67/bin/utaipan-eEHZpOm5b7/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9128a1e3-d31e-4101-8b7a-b4bcd9813e67/bin/utaipan-eEHZpOm5b7 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash c2ae5598eb8e855028fa92e7ae47f6d5aee7a22667905b541c24d1d907d5da2d --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-11-25 20:34:07,780 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-25 20:34:07,782 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-25 20:34:07,832 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-25 20:34:07,832 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-25 20:34:07,838 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-25 20:34:07,840 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-25 20:34:07,843 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-25 20:34:07,845 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-25 20:34:07,850 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-25 20:34:07,851 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-25 20:34:07,853 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-25 20:34:07,853 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-25 20:34:07,856 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-25 20:34:07,857 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-25 20:34:07,861 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-25 20:34:07,863 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-25 20:34:07,864 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-25 20:34:07,866 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-25 20:34:07,874 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-25 20:34:07,875 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-25 20:34:07,877 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-25 20:34:07,878 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-25 20:34:07,879 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-25 20:34:07,882 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-25 20:34:07,882 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-25 20:34:07,883 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-25 20:34:07,884 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-25 20:34:07,884 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-25 20:34:07,885 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-25 20:34:07,886 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-25 20:34:07,886 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-25 20:34:07,887 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-25 20:34:07,888 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-25 20:34:07,889 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-25 20:34:07,889 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-25 20:34:07,890 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-25 20:34:07,890 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-25 20:34:07,890 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-25 20:34:07,891 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-25 20:34:07,892 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-25 20:34:07,893 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9128a1e3-d31e-4101-8b7a-b4bcd9813e67/bin/utaipan-eEHZpOm5b7/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-25 20:34:07,918 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-25 20:34:07,919 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-25 20:34:07,919 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-25 20:34:07,919 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-25 20:34:07,920 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-25 20:34:07,920 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-25 20:34:07,920 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-25 20:34:07,921 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-25 20:34:07,921 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-25 20:34:07,921 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-25 20:34:07,921 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-25 20:34:07,921 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-25 20:34:07,922 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-25 20:34:07,922 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-25 20:34:07,922 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-25 20:34:07,922 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-25 20:34:07,923 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-25 20:34:07,923 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-25 20:34:07,923 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-25 20:34:07,924 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-25 20:34:07,924 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-25 20:34:07,924 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-25 20:34:07,924 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-25 20:34:07,924 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-25 20:34:07,925 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-25 20:34:07,925 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-25 20:34:07,925 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-25 20:34:07,925 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-25 20:34:07,926 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-25 20:34:07,926 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 20:34:07,926 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-25 20:34:07,926 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-25 20:34:07,927 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-25 20:34:07,927 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-25 20:34:07,927 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-25 20:34:07,927 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-25 20:34:07,927 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-25 20:34:07,928 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-25 20:34:07,928 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9128a1e3-d31e-4101-8b7a-b4bcd9813e67/bin/utaipan-eEHZpOm5b7/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9128a1e3-d31e-4101-8b7a-b4bcd9813e67/bin/utaipan-eEHZpOm5b7 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c2ae5598eb8e855028fa92e7ae47f6d5aee7a22667905b541c24d1d907d5da2d [2021-11-25 20:34:08,142 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-25 20:34:08,161 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-25 20:34:08,163 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-25 20:34:08,164 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-25 20:34:08,165 INFO L275 PluginConnector]: CDTParser initialized [2021-11-25 20:34:08,166 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9128a1e3-d31e-4101-8b7a-b4bcd9813e67/bin/utaipan-eEHZpOm5b7/../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-usb-dvb-usb-v2-dvb-usb-mxl111sf.cil.i [2021-11-25 20:34:08,251 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9128a1e3-d31e-4101-8b7a-b4bcd9813e67/bin/utaipan-eEHZpOm5b7/data/d10d0f578/1fb920828baa4b67a740e4033559222f/FLAG17e3952bd [2021-11-25 20:34:09,281 INFO L306 CDTParser]: Found 1 translation units. [2021-11-25 20:34:09,282 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9128a1e3-d31e-4101-8b7a-b4bcd9813e67/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-usb-dvb-usb-v2-dvb-usb-mxl111sf.cil.i [2021-11-25 20:34:09,352 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9128a1e3-d31e-4101-8b7a-b4bcd9813e67/bin/utaipan-eEHZpOm5b7/data/d10d0f578/1fb920828baa4b67a740e4033559222f/FLAG17e3952bd [2021-11-25 20:34:09,607 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9128a1e3-d31e-4101-8b7a-b4bcd9813e67/bin/utaipan-eEHZpOm5b7/data/d10d0f578/1fb920828baa4b67a740e4033559222f [2021-11-25 20:34:09,610 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-25 20:34:09,614 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-25 20:34:09,617 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-25 20:34:09,617 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-25 20:34:09,621 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-25 20:34:09,621 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:34:09" (1/1) ... [2021-11-25 20:34:09,623 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@25c8495 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:34:09, skipping insertion in model container [2021-11-25 20:34:09,623 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:34:09" (1/1) ... [2021-11-25 20:34:09,630 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-25 20:34:09,824 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-25 20:34:12,964 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9128a1e3-d31e-4101-8b7a-b4bcd9813e67/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-usb-dvb-usb-v2-dvb-usb-mxl111sf.cil.i[470671,470684] [2021-11-25 20:34:12,966 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9128a1e3-d31e-4101-8b7a-b4bcd9813e67/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-usb-dvb-usb-v2-dvb-usb-mxl111sf.cil.i[470837,470850] [2021-11-25 20:34:12,967 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9128a1e3-d31e-4101-8b7a-b4bcd9813e67/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-usb-dvb-usb-v2-dvb-usb-mxl111sf.cil.i[471001,471014] [2021-11-25 20:34:12,968 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9128a1e3-d31e-4101-8b7a-b4bcd9813e67/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-usb-dvb-usb-v2-dvb-usb-mxl111sf.cil.i[471166,471179] [2021-11-25 20:34:12,977 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 20:34:13,028 INFO L203 MainTranslator]: Completed pre-run [2021-11-25 20:34:13,599 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9128a1e3-d31e-4101-8b7a-b4bcd9813e67/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-usb-dvb-usb-v2-dvb-usb-mxl111sf.cil.i[470671,470684] [2021-11-25 20:34:13,600 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9128a1e3-d31e-4101-8b7a-b4bcd9813e67/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-usb-dvb-usb-v2-dvb-usb-mxl111sf.cil.i[470837,470850] [2021-11-25 20:34:13,601 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9128a1e3-d31e-4101-8b7a-b4bcd9813e67/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-usb-dvb-usb-v2-dvb-usb-mxl111sf.cil.i[471001,471014] [2021-11-25 20:34:13,602 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9128a1e3-d31e-4101-8b7a-b4bcd9813e67/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-usb-dvb-usb-v2-dvb-usb-mxl111sf.cil.i[471166,471179] [2021-11-25 20:34:13,606 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 20:34:13,949 INFO L208 MainTranslator]: Completed translation [2021-11-25 20:34:13,950 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:34:13 WrapperNode [2021-11-25 20:34:13,950 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-25 20:34:13,951 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-25 20:34:13,951 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-25 20:34:13,951 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-25 20:34:13,961 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:34:13" (1/1) ... [2021-11-25 20:34:14,174 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:34:13" (1/1) ... [2021-11-25 20:34:14,422 INFO L137 Inliner]: procedures = 313, calls = 4214, calls flagged for inlining = 171, calls inlined = 156, statements flattened = 7138 [2021-11-25 20:34:14,423 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-25 20:34:14,423 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-25 20:34:14,424 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-25 20:34:14,424 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-25 20:34:14,433 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:34:13" (1/1) ... [2021-11-25 20:34:14,433 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:34:13" (1/1) ... [2021-11-25 20:34:14,473 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:34:13" (1/1) ... [2021-11-25 20:34:14,475 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:34:13" (1/1) ... [2021-11-25 20:34:14,635 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:34:13" (1/1) ... [2021-11-25 20:34:14,661 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:34:13" (1/1) ... [2021-11-25 20:34:14,773 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:34:13" (1/1) ... [2021-11-25 20:34:14,844 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-25 20:34:14,844 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-25 20:34:14,845 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-25 20:34:14,845 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-25 20:34:14,846 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:34:13" (1/1) ... [2021-11-25 20:34:14,853 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 20:34:14,862 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9128a1e3-d31e-4101-8b7a-b4bcd9813e67/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 20:34:14,877 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9128a1e3-d31e-4101-8b7a-b4bcd9813e67/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-25 20:34:14,907 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9128a1e3-d31e-4101-8b7a-b4bcd9813e67/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-25 20:34:14,921 INFO L130 BoogieDeclarations]: Found specification of procedure mxl111sf_streaming_ctrl_mercury_mh [2021-11-25 20:34:14,921 INFO L138 BoogieDeclarations]: Found implementation of procedure mxl111sf_streaming_ctrl_mercury_mh [2021-11-25 20:34:14,921 INFO L130 BoogieDeclarations]: Found specification of procedure mxl111sf_read_reg [2021-11-25 20:34:14,922 INFO L138 BoogieDeclarations]: Found implementation of procedure mxl111sf_read_reg [2021-11-25 20:34:14,922 INFO L130 BoogieDeclarations]: Found specification of procedure mxl111sf_frontend_attach_mercury [2021-11-25 20:34:14,922 INFO L138 BoogieDeclarations]: Found implementation of procedure mxl111sf_frontend_attach_mercury [2021-11-25 20:34:14,922 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2021-11-25 20:34:14,922 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2021-11-25 20:34:14,922 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_mxl111sf_usb_driver_exit_11_2 [2021-11-25 20:34:14,922 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_mxl111sf_usb_driver_exit_11_2 [2021-11-25 20:34:14,922 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-25 20:34:14,922 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-25 20:34:14,923 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-25 20:34:14,923 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-25 20:34:14,923 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_interface [2021-11-25 20:34:14,923 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_interface [2021-11-25 20:34:14,923 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-25 20:34:14,923 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-25 20:34:14,923 INFO L130 BoogieDeclarations]: Found specification of procedure mxl111sf_lg2160_frontend_attach [2021-11-25 20:34:14,923 INFO L138 BoogieDeclarations]: Found implementation of procedure mxl111sf_lg2160_frontend_attach [2021-11-25 20:34:14,924 INFO L130 BoogieDeclarations]: Found specification of procedure mxl111sf_i2c_stop [2021-11-25 20:34:14,924 INFO L138 BoogieDeclarations]: Found implementation of procedure mxl111sf_i2c_stop [2021-11-25 20:34:14,924 INFO L130 BoogieDeclarations]: Found specification of procedure mxl111sf_config_pin_mux_modes [2021-11-25 20:34:14,924 INFO L138 BoogieDeclarations]: Found implementation of procedure mxl111sf_config_pin_mux_modes [2021-11-25 20:34:14,924 INFO L130 BoogieDeclarations]: Found specification of procedure mxl111sf_i2c_start [2021-11-25 20:34:14,924 INFO L138 BoogieDeclarations]: Found implementation of procedure mxl111sf_i2c_start [2021-11-25 20:34:14,924 INFO L130 BoogieDeclarations]: Found specification of procedure mxl111sf_i2c_xfer [2021-11-25 20:34:14,924 INFO L138 BoogieDeclarations]: Found implementation of procedure mxl111sf_i2c_xfer [2021-11-25 20:34:14,925 INFO L130 BoogieDeclarations]: Found specification of procedure __symbol_put [2021-11-25 20:34:14,925 INFO L138 BoogieDeclarations]: Found implementation of procedure __symbol_put [2021-11-25 20:34:14,925 INFO L130 BoogieDeclarations]: Found specification of procedure mxl111sf_stream_config_isoc [2021-11-25 20:34:14,925 INFO L138 BoogieDeclarations]: Found implementation of procedure mxl111sf_stream_config_isoc [2021-11-25 20:34:14,925 INFO L130 BoogieDeclarations]: Found specification of procedure mxl111sf_adap_fe_sleep [2021-11-25 20:34:14,925 INFO L138 BoogieDeclarations]: Found implementation of procedure mxl111sf_adap_fe_sleep [2021-11-25 20:34:14,925 INFO L130 BoogieDeclarations]: Found specification of procedure mxl111sf_frontend_attach_mh [2021-11-25 20:34:14,925 INFO L138 BoogieDeclarations]: Found implementation of procedure mxl111sf_frontend_attach_mh [2021-11-25 20:34:14,926 INFO L130 BoogieDeclarations]: Found specification of procedure mxl111sf_frontend_attach_atsc [2021-11-25 20:34:14,926 INFO L138 BoogieDeclarations]: Found implementation of procedure mxl111sf_frontend_attach_atsc [2021-11-25 20:34:14,926 INFO L130 BoogieDeclarations]: Found specification of procedure mxl111sf_ep6_streaming_ctrl [2021-11-25 20:34:14,926 INFO L138 BoogieDeclarations]: Found implementation of procedure mxl111sf_ep6_streaming_ctrl [2021-11-25 20:34:14,926 INFO L130 BoogieDeclarations]: Found specification of procedure mxl111sf_write_reg_mask [2021-11-25 20:34:14,926 INFO L138 BoogieDeclarations]: Found implementation of procedure mxl111sf_write_reg_mask [2021-11-25 20:34:14,926 INFO L130 BoogieDeclarations]: Found specification of procedure mxl1x1sf_soft_reset [2021-11-25 20:34:14,926 INFO L138 BoogieDeclarations]: Found implementation of procedure mxl1x1sf_soft_reset [2021-11-25 20:34:14,926 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-25 20:34:14,927 INFO L130 BoogieDeclarations]: Found specification of procedure mxl111sf_stream_config_bulk [2021-11-25 20:34:14,927 INFO L138 BoogieDeclarations]: Found implementation of procedure mxl111sf_stream_config_bulk [2021-11-25 20:34:14,927 INFO L130 BoogieDeclarations]: Found specification of procedure mxl111sf_init [2021-11-25 20:34:14,927 INFO L138 BoogieDeclarations]: Found implementation of procedure mxl111sf_init [2021-11-25 20:34:14,927 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-25 20:34:14,927 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-25 20:34:14,927 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-25 20:34:14,927 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-25 20:34:14,928 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-25 20:34:14,928 INFO L130 BoogieDeclarations]: Found specification of procedure mxl111sf_init_tuner_demod [2021-11-25 20:34:14,928 INFO L138 BoogieDeclarations]: Found implementation of procedure mxl111sf_init_tuner_demod [2021-11-25 20:34:14,928 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exit [2021-11-25 20:34:14,928 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exit [2021-11-25 20:34:14,928 INFO L130 BoogieDeclarations]: Found specification of procedure mxl111sf_adap_fe_init [2021-11-25 20:34:14,928 INFO L138 BoogieDeclarations]: Found implementation of procedure mxl111sf_adap_fe_init [2021-11-25 20:34:14,928 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-25 20:34:14,928 INFO L130 BoogieDeclarations]: Found specification of procedure mxl111sf_i2c_bitbang_sendbyte [2021-11-25 20:34:14,929 INFO L138 BoogieDeclarations]: Found implementation of procedure mxl111sf_i2c_bitbang_sendbyte [2021-11-25 20:34:14,929 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-25 20:34:14,929 INFO L130 BoogieDeclarations]: Found specification of procedure mxl111sf_lgdt3305_frontend_attach [2021-11-25 20:34:14,929 INFO L138 BoogieDeclarations]: Found implementation of procedure mxl111sf_lgdt3305_frontend_attach [2021-11-25 20:34:14,929 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-25 20:34:14,929 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-25 20:34:14,929 INFO L130 BoogieDeclarations]: Found specification of procedure mxl111sf_i2c_check_status [2021-11-25 20:34:14,929 INFO L138 BoogieDeclarations]: Found implementation of procedure mxl111sf_i2c_check_status [2021-11-25 20:34:14,929 INFO L130 BoogieDeclarations]: Found specification of procedure mxl111sf_ep5_streaming_ctrl [2021-11-25 20:34:14,930 INFO L138 BoogieDeclarations]: Found implementation of procedure mxl111sf_ep5_streaming_ctrl [2021-11-25 20:34:14,930 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_instance_release_7_4 [2021-11-25 20:34:14,930 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_instance_release_7_4 [2021-11-25 20:34:14,930 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-25 20:34:14,930 INFO L130 BoogieDeclarations]: Found specification of procedure mxl111sf_ctrl_msg [2021-11-25 20:34:14,930 INFO L138 BoogieDeclarations]: Found implementation of procedure mxl111sf_ctrl_msg [2021-11-25 20:34:14,930 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-25 20:34:14,930 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_fe_lock_of_mxl111sf_state [2021-11-25 20:34:14,931 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_fe_lock_of_mxl111sf_state [2021-11-25 20:34:14,931 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-25 20:34:14,931 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-25 20:34:14,931 INFO L130 BoogieDeclarations]: Found specification of procedure mxl111sf_frontend_attach_dvbt [2021-11-25 20:34:14,931 INFO L138 BoogieDeclarations]: Found implementation of procedure mxl111sf_frontend_attach_dvbt [2021-11-25 20:34:14,931 INFO L130 BoogieDeclarations]: Found specification of procedure mxl111sf_ep4_streaming_ctrl [2021-11-25 20:34:14,931 INFO L138 BoogieDeclarations]: Found implementation of procedure mxl111sf_ep4_streaming_ctrl [2021-11-25 20:34:14,931 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-25 20:34:14,931 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2021-11-25 20:34:14,932 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2021-11-25 20:34:14,932 INFO L130 BoogieDeclarations]: Found specification of procedure mxl111sf_set_gpio [2021-11-25 20:34:14,932 INFO L138 BoogieDeclarations]: Found implementation of procedure mxl111sf_set_gpio [2021-11-25 20:34:14,932 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~$Pointer$ [2021-11-25 20:34:14,932 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~$Pointer$ [2021-11-25 20:34:14,932 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2021-11-25 20:34:14,932 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2021-11-25 20:34:14,932 INFO L130 BoogieDeclarations]: Found specification of procedure mxl111sf_lg2161_ep6_frontend_attach [2021-11-25 20:34:14,933 INFO L138 BoogieDeclarations]: Found implementation of procedure mxl111sf_lg2161_ep6_frontend_attach [2021-11-25 20:34:14,933 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-25 20:34:14,933 INFO L130 BoogieDeclarations]: Found specification of procedure mxl1x1sf_get_chip_info [2021-11-25 20:34:14,933 INFO L138 BoogieDeclarations]: Found implementation of procedure mxl1x1sf_get_chip_info [2021-11-25 20:34:14,933 INFO L130 BoogieDeclarations]: Found specification of procedure mxl111sf_frontend_attach_mercury_mh [2021-11-25 20:34:14,933 INFO L138 BoogieDeclarations]: Found implementation of procedure mxl111sf_frontend_attach_mercury_mh [2021-11-25 20:34:14,933 INFO L130 BoogieDeclarations]: Found specification of procedure mxl111sf_enable_usb_output [2021-11-25 20:34:14,933 INFO L138 BoogieDeclarations]: Found implementation of procedure mxl111sf_enable_usb_output [2021-11-25 20:34:14,933 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_transfer [2021-11-25 20:34:14,934 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_transfer [2021-11-25 20:34:14,934 INFO L130 BoogieDeclarations]: Found specification of procedure mxl111sf_attach_tuner [2021-11-25 20:34:14,934 INFO L138 BoogieDeclarations]: Found implementation of procedure mxl111sf_attach_tuner [2021-11-25 20:34:14,934 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-25 20:34:14,934 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-25 20:34:14,934 INFO L130 BoogieDeclarations]: Found specification of procedure mxl111sf_hw_set_gpio [2021-11-25 20:34:14,934 INFO L138 BoogieDeclarations]: Found implementation of procedure mxl111sf_hw_set_gpio [2021-11-25 20:34:14,934 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-25 20:34:14,934 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2021-11-25 20:34:14,935 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2021-11-25 20:34:14,935 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2021-11-25 20:34:14,935 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2021-11-25 20:34:14,935 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-25 20:34:14,935 INFO L130 BoogieDeclarations]: Found specification of procedure mxl1x1sf_set_device_mode [2021-11-25 20:34:14,935 INFO L138 BoogieDeclarations]: Found implementation of procedure mxl1x1sf_set_device_mode [2021-11-25 20:34:14,935 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-25 20:34:14,935 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-25 20:34:14,935 INFO L130 BoogieDeclarations]: Found specification of procedure mxl111sf_ctrl_program_regs [2021-11-25 20:34:14,936 INFO L138 BoogieDeclarations]: Found implementation of procedure mxl111sf_ctrl_program_regs [2021-11-25 20:34:14,936 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-25 20:34:14,936 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-11-25 20:34:14,936 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-11-25 20:34:14,936 INFO L130 BoogieDeclarations]: Found specification of procedure mxl111sf_gpio_mode_switch [2021-11-25 20:34:14,936 INFO L138 BoogieDeclarations]: Found implementation of procedure mxl111sf_gpio_mode_switch [2021-11-25 20:34:14,936 INFO L130 BoogieDeclarations]: Found specification of procedure __symbol_get [2021-11-25 20:34:14,936 INFO L138 BoogieDeclarations]: Found implementation of procedure __symbol_get [2021-11-25 20:34:14,936 INFO L130 BoogieDeclarations]: Found specification of procedure mxl111sf_write_reg [2021-11-25 20:34:14,937 INFO L138 BoogieDeclarations]: Found implementation of procedure mxl111sf_write_reg [2021-11-25 20:34:14,937 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-25 20:34:14,937 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-25 20:34:14,937 INFO L130 BoogieDeclarations]: Found specification of procedure mxl111sf_i2c_func [2021-11-25 20:34:14,937 INFO L138 BoogieDeclarations]: Found implementation of procedure mxl111sf_i2c_func [2021-11-25 20:34:14,937 INFO L130 BoogieDeclarations]: Found specification of procedure mxl111sf_ant_hunt [2021-11-25 20:34:14,937 INFO L138 BoogieDeclarations]: Found implementation of procedure mxl111sf_ant_hunt [2021-11-25 20:34:14,937 INFO L130 BoogieDeclarations]: Found specification of procedure mxl111sf_set_ant_path [2021-11-25 20:34:14,937 INFO L138 BoogieDeclarations]: Found implementation of procedure mxl111sf_set_ant_path [2021-11-25 20:34:14,938 INFO L130 BoogieDeclarations]: Found specification of procedure mxl111sf_init_port_expander [2021-11-25 20:34:14,938 INFO L138 BoogieDeclarations]: Found implementation of procedure mxl111sf_init_port_expander [2021-11-25 20:34:14,938 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_usbv2_disconnect [2021-11-25 20:34:14,938 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_usbv2_disconnect [2021-11-25 20:34:14,938 INFO L130 BoogieDeclarations]: Found specification of procedure mxl111sf_frontend_attach_atsc_mh [2021-11-25 20:34:14,938 INFO L138 BoogieDeclarations]: Found implementation of procedure mxl111sf_frontend_attach_atsc_mh [2021-11-25 20:34:14,938 INFO L130 BoogieDeclarations]: Found specification of procedure mxl111sf_attach_demod [2021-11-25 20:34:14,938 INFO L138 BoogieDeclarations]: Found implementation of procedure mxl111sf_attach_demod [2021-11-25 20:34:14,938 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-11-25 20:34:14,938 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-11-25 20:34:14,939 INFO L130 BoogieDeclarations]: Found specification of procedure mxl111sf_i2c_send_data [2021-11-25 20:34:14,939 INFO L138 BoogieDeclarations]: Found implementation of procedure mxl111sf_i2c_send_data [2021-11-25 20:34:14,939 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_usbv2_resume [2021-11-25 20:34:14,939 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_usbv2_resume [2021-11-25 20:34:14,939 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-25 20:34:14,939 INFO L130 BoogieDeclarations]: Found specification of procedure mxl111sf_i2c_get_data [2021-11-25 20:34:14,939 INFO L138 BoogieDeclarations]: Found implementation of procedure mxl111sf_i2c_get_data [2021-11-25 20:34:14,939 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-11-25 20:34:14,939 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-11-25 20:34:14,940 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-25 20:34:14,940 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-25 20:34:14,940 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_usbv2_probe [2021-11-25 20:34:14,940 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_usbv2_probe [2021-11-25 20:34:14,940 INFO L130 BoogieDeclarations]: Found specification of procedure mxl1x1sf_top_master_ctrl [2021-11-25 20:34:14,940 INFO L138 BoogieDeclarations]: Found implementation of procedure mxl1x1sf_top_master_ctrl [2021-11-25 20:34:15,892 INFO L236 CfgBuilder]: Building ICFG [2021-11-25 20:34:15,896 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-25 20:34:16,252 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-25 20:34:36,093 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-25 20:34:36,357 INFO L277 CfgBuilder]: Performing block encoding [2021-11-25 20:34:39,991 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-25 20:34:39,991 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-25 20:34:39,996 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:34:39 BoogieIcfgContainer [2021-11-25 20:34:39,996 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-25 20:34:39,998 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-25 20:34:39,998 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-25 20:34:40,001 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-25 20:34:40,001 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 08:34:09" (1/3) ... [2021-11-25 20:34:40,002 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5475d2e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 08:34:40, skipping insertion in model container [2021-11-25 20:34:40,002 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:34:13" (2/3) ... [2021-11-25 20:34:40,002 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5475d2e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 08:34:40, skipping insertion in model container [2021-11-25 20:34:40,003 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:34:39" (3/3) ... [2021-11-25 20:34:40,004 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-usb-dvb-usb-v2-dvb-usb-mxl111sf.cil.i [2021-11-25 20:34:40,009 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-25 20:34:40,009 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-11-25 20:34:40,064 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-25 20:34:40,071 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-25 20:34:40,071 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-11-25 20:34:40,133 INFO L276 IsEmpty]: Start isEmpty. Operand has 1690 states, 1083 states have (on average 1.3822714681440442) internal successors, (1497), 1116 states have internal predecessors, (1497), 530 states have call successors, (530), 75 states have call predecessors, (530), 74 states have return successors, (523), 503 states have call predecessors, (523), 523 states have call successors, (523) [2021-11-25 20:34:40,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 525 [2021-11-25 20:34:40,174 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:34:40,188 INFO L514 BasicCegarLoop]: trace histogram [51, 50, 50, 50, 50, 50, 50, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:34:40,189 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-25 20:34:40,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:34:40,195 INFO L85 PathProgramCache]: Analyzing trace with hash 2127863428, now seen corresponding path program 1 times [2021-11-25 20:34:40,204 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:34:40,204 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1679819798] [2021-11-25 20:34:40,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:34:40,205 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:34:40,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:34:41,559 INFO L134 CoverageAnalysis]: Checked inductivity of 9903 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9903 trivial. 0 not checked. [2021-11-25 20:34:41,573 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:34:41,573 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1679819798] [2021-11-25 20:34:41,574 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1679819798] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:34:41,574 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:34:41,575 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 20:34:41,576 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [330522308] [2021-11-25 20:34:41,577 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:34:41,582 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 20:34:41,583 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:34:41,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 20:34:41,622 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:34:41,629 INFO L87 Difference]: Start difference. First operand has 1690 states, 1083 states have (on average 1.3822714681440442) internal successors, (1497), 1116 states have internal predecessors, (1497), 530 states have call successors, (530), 75 states have call predecessors, (530), 74 states have return successors, (523), 503 states have call predecessors, (523), 523 states have call successors, (523) Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 3 states have call successors, (57), 2 states have call predecessors, (57), 1 states have return successors, (55), 3 states have call predecessors, (55), 3 states have call successors, (55) [2021-11-25 20:34:45,406 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:34:47,435 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:34:53,965 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:34:54,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:34:54,668 INFO L93 Difference]: Finished difference Result 4750 states and 7226 transitions. [2021-11-25 20:34:54,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 20:34:54,670 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 3 states have call successors, (57), 2 states have call predecessors, (57), 1 states have return successors, (55), 3 states have call predecessors, (55), 3 states have call successors, (55) Word has length 524 [2021-11-25 20:34:54,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:34:54,721 INFO L225 Difference]: With dead ends: 4750 [2021-11-25 20:34:54,721 INFO L226 Difference]: Without dead ends: 3150 [2021-11-25 20:34:54,740 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:34:54,744 INFO L933 BasicCegarLoop]: 2490 mSDtfsCounter, 2242 mSDsluCounter, 2489 mSDsCounter, 0 mSdLazyCounter, 995 mSolverCounterSat, 9 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2253 SdHoareTripleChecker+Valid, 4506 SdHoareTripleChecker+Invalid, 1007 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 995 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.6s IncrementalHoareTripleChecker+Time [2021-11-25 20:34:54,745 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2253 Valid, 4506 Invalid, 1007 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 995 Invalid, 3 Unknown, 0 Unchecked, 12.6s Time] [2021-11-25 20:34:54,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3150 states. [2021-11-25 20:34:55,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3150 to 3144. [2021-11-25 20:34:55,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3144 states, 2044 states have (on average 1.3864970645792563) internal successors, (2834), 2110 states have internal predecessors, (2834), 954 states have call successors, (954), 144 states have call predecessors, (954), 143 states have return successors, (955), 909 states have call predecessors, (955), 950 states have call successors, (955) [2021-11-25 20:34:55,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3144 states to 3144 states and 4743 transitions. [2021-11-25 20:34:55,057 INFO L78 Accepts]: Start accepts. Automaton has 3144 states and 4743 transitions. Word has length 524 [2021-11-25 20:34:55,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:34:55,063 INFO L470 AbstractCegarLoop]: Abstraction has 3144 states and 4743 transitions. [2021-11-25 20:34:55,066 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 3 states have call successors, (57), 2 states have call predecessors, (57), 1 states have return successors, (55), 3 states have call predecessors, (55), 3 states have call successors, (55) [2021-11-25 20:34:55,067 INFO L276 IsEmpty]: Start isEmpty. Operand 3144 states and 4743 transitions. [2021-11-25 20:34:55,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 523 [2021-11-25 20:34:55,087 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:34:55,088 INFO L514 BasicCegarLoop]: trace histogram [51, 50, 50, 50, 50, 50, 50, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:34:55,089 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-25 20:34:55,089 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-25 20:34:55,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:34:55,093 INFO L85 PathProgramCache]: Analyzing trace with hash 285612523, now seen corresponding path program 1 times [2021-11-25 20:34:55,099 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:34:55,100 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [674218837] [2021-11-25 20:34:55,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:34:55,100 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:34:55,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:34:55,920 INFO L134 CoverageAnalysis]: Checked inductivity of 9900 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9900 trivial. 0 not checked. [2021-11-25 20:34:55,921 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:34:55,921 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [674218837] [2021-11-25 20:34:55,921 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [674218837] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:34:55,923 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:34:55,923 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 20:34:55,925 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [295389177] [2021-11-25 20:34:55,927 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:34:55,929 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 20:34:55,930 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:34:55,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 20:34:55,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:34:55,932 INFO L87 Difference]: Start difference. First operand 3144 states and 4743 transitions. Second operand has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 3 states have call successors, (54), 2 states have call predecessors, (54), 1 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) [2021-11-25 20:34:59,719 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:35:01,770 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:35:09,602 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:35:10,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:35:10,304 INFO L93 Difference]: Finished difference Result 7660 states and 11545 transitions. [2021-11-25 20:35:10,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 20:35:10,305 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 3 states have call successors, (54), 2 states have call predecessors, (54), 1 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) Word has length 522 [2021-11-25 20:35:10,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:35:10,347 INFO L225 Difference]: With dead ends: 7660 [2021-11-25 20:35:10,347 INFO L226 Difference]: Without dead ends: 4617 [2021-11-25 20:35:10,370 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:35:10,372 INFO L933 BasicCegarLoop]: 2483 mSDtfsCounter, 2226 mSDsluCounter, 2484 mSDsCounter, 0 mSdLazyCounter, 995 mSolverCounterSat, 7 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2237 SdHoareTripleChecker+Valid, 4498 SdHoareTripleChecker+Invalid, 1005 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 995 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.1s IncrementalHoareTripleChecker+Time [2021-11-25 20:35:10,372 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2237 Valid, 4498 Invalid, 1005 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 995 Invalid, 3 Unknown, 0 Unchecked, 14.1s Time] [2021-11-25 20:35:10,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4617 states. [2021-11-25 20:35:10,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4617 to 4595. [2021-11-25 20:35:10,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4595 states, 2996 states have (on average 1.3871829105473965) internal successors, (4156), 3096 states have internal predecessors, (4156), 1379 states have call successors, (1379), 218 states have call predecessors, (1379), 217 states have return successors, (1385), 1310 states have call predecessors, (1385), 1375 states have call successors, (1385) [2021-11-25 20:35:10,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4595 states to 4595 states and 6920 transitions. [2021-11-25 20:35:10,751 INFO L78 Accepts]: Start accepts. Automaton has 4595 states and 6920 transitions. Word has length 522 [2021-11-25 20:35:10,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:35:10,756 INFO L470 AbstractCegarLoop]: Abstraction has 4595 states and 6920 transitions. [2021-11-25 20:35:10,756 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 3 states have call successors, (54), 2 states have call predecessors, (54), 1 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) [2021-11-25 20:35:10,756 INFO L276 IsEmpty]: Start isEmpty. Operand 4595 states and 6920 transitions. [2021-11-25 20:35:10,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 524 [2021-11-25 20:35:10,773 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:35:10,774 INFO L514 BasicCegarLoop]: trace histogram [51, 50, 50, 50, 50, 50, 50, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:35:10,774 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-25 20:35:10,774 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-25 20:35:10,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:35:10,775 INFO L85 PathProgramCache]: Analyzing trace with hash 1095434502, now seen corresponding path program 1 times [2021-11-25 20:35:10,775 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:35:10,778 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [570902186] [2021-11-25 20:35:10,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:35:10,778 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:35:11,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:35:11,372 INFO L134 CoverageAnalysis]: Checked inductivity of 9900 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9900 trivial. 0 not checked. [2021-11-25 20:35:11,373 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:35:11,375 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [570902186] [2021-11-25 20:35:11,376 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [570902186] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:35:11,376 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:35:11,376 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 20:35:11,376 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [536428285] [2021-11-25 20:35:11,376 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:35:11,378 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 20:35:11,378 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:35:11,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 20:35:11,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:35:11,379 INFO L87 Difference]: Start difference. First operand 4595 states and 6920 transitions. Second operand has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 3 states have call successors, (54), 2 states have call predecessors, (54), 1 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) [2021-11-25 20:35:14,855 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:35:16,905 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:35:24,366 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:35:25,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:35:25,023 INFO L93 Difference]: Finished difference Result 11956 states and 17976 transitions. [2021-11-25 20:35:25,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 20:35:25,023 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 3 states have call successors, (54), 2 states have call predecessors, (54), 1 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) Word has length 523 [2021-11-25 20:35:25,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:35:25,090 INFO L225 Difference]: With dead ends: 11956 [2021-11-25 20:35:25,091 INFO L226 Difference]: Without dead ends: 7462 [2021-11-25 20:35:25,121 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:35:25,123 INFO L933 BasicCegarLoop]: 2498 mSDtfsCounter, 2191 mSDsluCounter, 2484 mSDsCounter, 0 mSdLazyCounter, 1006 mSolverCounterSat, 7 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2201 SdHoareTripleChecker+Valid, 4513 SdHoareTripleChecker+Invalid, 1016 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1006 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.3s IncrementalHoareTripleChecker+Time [2021-11-25 20:35:25,123 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2201 Valid, 4513 Invalid, 1016 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1006 Invalid, 3 Unknown, 0 Unchecked, 13.3s Time] [2021-11-25 20:35:25,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7462 states. [2021-11-25 20:35:25,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7462 to 7440. [2021-11-25 20:35:25,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7440 states, 4864 states have (on average 1.3856907894736843) internal successors, (6740), 5017 states have internal predecessors, (6740), 2208 states have call successors, (2208), 366 states have call predecessors, (2208), 365 states have return successors, (2221), 2103 states have call predecessors, (2221), 2204 states have call successors, (2221) [2021-11-25 20:35:25,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7440 states to 7440 states and 11169 transitions. [2021-11-25 20:35:25,581 INFO L78 Accepts]: Start accepts. Automaton has 7440 states and 11169 transitions. Word has length 523 [2021-11-25 20:35:25,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:35:25,583 INFO L470 AbstractCegarLoop]: Abstraction has 7440 states and 11169 transitions. [2021-11-25 20:35:25,584 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 3 states have call successors, (54), 2 states have call predecessors, (54), 1 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) [2021-11-25 20:35:25,585 INFO L276 IsEmpty]: Start isEmpty. Operand 7440 states and 11169 transitions. [2021-11-25 20:35:25,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 525 [2021-11-25 20:35:25,599 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:35:25,599 INFO L514 BasicCegarLoop]: trace histogram [51, 50, 50, 50, 50, 50, 50, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:35:25,599 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-25 20:35:25,600 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-25 20:35:25,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:35:25,600 INFO L85 PathProgramCache]: Analyzing trace with hash 1525596905, now seen corresponding path program 1 times [2021-11-25 20:35:25,601 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:35:25,601 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [140789227] [2021-11-25 20:35:25,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:35:25,601 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:35:25,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:35:26,167 INFO L134 CoverageAnalysis]: Checked inductivity of 9900 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9900 trivial. 0 not checked. [2021-11-25 20:35:26,168 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:35:26,168 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [140789227] [2021-11-25 20:35:26,168 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [140789227] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:35:26,168 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:35:26,169 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 20:35:26,169 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1557745404] [2021-11-25 20:35:26,169 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:35:26,171 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 20:35:26,171 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:35:26,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 20:35:26,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:35:26,172 INFO L87 Difference]: Start difference. First operand 7440 states and 11169 transitions. Second operand has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 3 states have call successors, (54), 2 states have call predecessors, (54), 1 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) [2021-11-25 20:35:29,779 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:35:32,252 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:35:39,735 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:35:40,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:35:40,404 INFO L93 Difference]: Finished difference Result 20535 states and 30816 transitions. [2021-11-25 20:35:40,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 20:35:40,405 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 3 states have call successors, (54), 2 states have call predecessors, (54), 1 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) Word has length 524 [2021-11-25 20:35:40,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:35:40,502 INFO L225 Difference]: With dead ends: 20535 [2021-11-25 20:35:40,502 INFO L226 Difference]: Without dead ends: 13196 [2021-11-25 20:35:40,545 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:35:40,546 INFO L933 BasicCegarLoop]: 2568 mSDtfsCounter, 2224 mSDsluCounter, 2484 mSDsCounter, 0 mSdLazyCounter, 1024 mSolverCounterSat, 7 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2235 SdHoareTripleChecker+Valid, 4583 SdHoareTripleChecker+Invalid, 1034 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1024 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.9s IncrementalHoareTripleChecker+Time [2021-11-25 20:35:40,547 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2235 Valid, 4583 Invalid, 1034 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1024 Invalid, 3 Unknown, 0 Unchecked, 13.9s Time] [2021-11-25 20:35:40,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13196 states. [2021-11-25 20:35:41,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13196 to 13174. [2021-11-25 20:35:41,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13174 states, 8629 states have (on average 1.3856762081353575) internal successors, (11957), 8907 states have internal predecessors, (11957), 3881 states have call successors, (3881), 662 states have call predecessors, (3881), 661 states have return successors, (3912), 3689 states have call predecessors, (3912), 3877 states have call successors, (3912) [2021-11-25 20:35:41,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13174 states to 13174 states and 19750 transitions. [2021-11-25 20:35:41,166 INFO L78 Accepts]: Start accepts. Automaton has 13174 states and 19750 transitions. Word has length 524 [2021-11-25 20:35:41,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:35:41,167 INFO L470 AbstractCegarLoop]: Abstraction has 13174 states and 19750 transitions. [2021-11-25 20:35:41,167 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 3 states have call successors, (54), 2 states have call predecessors, (54), 1 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) [2021-11-25 20:35:41,167 INFO L276 IsEmpty]: Start isEmpty. Operand 13174 states and 19750 transitions. [2021-11-25 20:35:41,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 526 [2021-11-25 20:35:41,182 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:35:41,182 INFO L514 BasicCegarLoop]: trace histogram [51, 50, 50, 50, 50, 50, 50, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:35:41,182 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-25 20:35:41,183 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-25 20:35:41,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:35:41,184 INFO L85 PathProgramCache]: Analyzing trace with hash 675477062, now seen corresponding path program 1 times [2021-11-25 20:35:41,184 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:35:41,184 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1965778837] [2021-11-25 20:35:41,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:35:41,184 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:35:41,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:35:41,684 INFO L134 CoverageAnalysis]: Checked inductivity of 9900 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9900 trivial. 0 not checked. [2021-11-25 20:35:41,684 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:35:41,684 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1965778837] [2021-11-25 20:35:41,684 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1965778837] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:35:41,685 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:35:41,685 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 20:35:41,685 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1040844289] [2021-11-25 20:35:41,685 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:35:41,686 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 20:35:41,686 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:35:41,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 20:35:41,687 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:35:41,687 INFO L87 Difference]: Start difference. First operand 13174 states and 19750 transitions. Second operand has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 3 states have call successors, (54), 2 states have call predecessors, (54), 1 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) [2021-11-25 20:35:45,257 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:35:47,694 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:35:55,291 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:35:56,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:35:56,005 INFO L93 Difference]: Finished difference Result 37407 states and 55976 transitions. [2021-11-25 20:35:56,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 20:35:56,006 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 3 states have call successors, (54), 2 states have call predecessors, (54), 1 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) Word has length 525 [2021-11-25 20:35:56,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:35:56,144 INFO L225 Difference]: With dead ends: 37407 [2021-11-25 20:35:56,144 INFO L226 Difference]: Without dead ends: 24334 [2021-11-25 20:35:56,209 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:35:56,212 INFO L933 BasicCegarLoop]: 2589 mSDtfsCounter, 2176 mSDsluCounter, 2484 mSDsCounter, 0 mSdLazyCounter, 1038 mSolverCounterSat, 7 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2186 SdHoareTripleChecker+Valid, 4604 SdHoareTripleChecker+Invalid, 1048 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1038 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.8s IncrementalHoareTripleChecker+Time [2021-11-25 20:35:56,213 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2186 Valid, 4604 Invalid, 1048 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1038 Invalid, 3 Unknown, 0 Unchecked, 13.8s Time] [2021-11-25 20:35:56,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24334 states. [2021-11-25 20:35:57,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24334 to 24312. [2021-11-25 20:35:57,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24312 states, 15958 states have (on average 1.3820654217320467) internal successors, (22055), 16420 states have internal predecessors, (22055), 7098 states have call successors, (7098), 1254 states have call predecessors, (7098), 1253 states have return successors, (7156), 6789 states have call predecessors, (7156), 7094 states have call successors, (7156) [2021-11-25 20:35:57,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24312 states to 24312 states and 36309 transitions. [2021-11-25 20:35:57,435 INFO L78 Accepts]: Start accepts. Automaton has 24312 states and 36309 transitions. Word has length 525 [2021-11-25 20:35:57,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:35:57,436 INFO L470 AbstractCegarLoop]: Abstraction has 24312 states and 36309 transitions. [2021-11-25 20:35:57,436 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 3 states have call successors, (54), 2 states have call predecessors, (54), 1 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) [2021-11-25 20:35:57,436 INFO L276 IsEmpty]: Start isEmpty. Operand 24312 states and 36309 transitions. [2021-11-25 20:35:57,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 527 [2021-11-25 20:35:57,442 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:35:57,443 INFO L514 BasicCegarLoop]: trace histogram [51, 50, 50, 50, 50, 50, 50, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:35:57,443 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-25 20:35:57,443 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-25 20:35:57,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:35:57,444 INFO L85 PathProgramCache]: Analyzing trace with hash -2128477743, now seen corresponding path program 1 times [2021-11-25 20:35:57,444 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:35:57,444 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [666852768] [2021-11-25 20:35:57,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:35:57,445 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:35:57,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:35:58,231 INFO L134 CoverageAnalysis]: Checked inductivity of 9900 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9900 trivial. 0 not checked. [2021-11-25 20:35:58,234 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:35:58,234 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [666852768] [2021-11-25 20:35:58,234 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [666852768] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:35:58,234 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:35:58,235 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 20:35:58,235 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [554865307] [2021-11-25 20:35:58,235 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:35:58,236 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 20:35:58,236 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:35:58,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 20:35:58,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:35:58,237 INFO L87 Difference]: Start difference. First operand 24312 states and 36309 transitions. Second operand has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 3 states have call successors, (54), 2 states have call predecessors, (54), 1 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) [2021-11-25 20:36:01,786 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:36:04,279 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:36:12,832 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:36:13,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:36:13,625 INFO L93 Difference]: Finished difference Result 70704 states and 105468 transitions. [2021-11-25 20:36:13,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 20:36:13,626 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 3 states have call successors, (54), 2 states have call predecessors, (54), 1 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) Word has length 526 [2021-11-25 20:36:13,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:36:14,039 INFO L225 Difference]: With dead ends: 70704 [2021-11-25 20:36:14,040 INFO L226 Difference]: Without dead ends: 46493 [2021-11-25 20:36:14,131 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:36:14,132 INFO L933 BasicCegarLoop]: 2661 mSDtfsCounter, 2204 mSDsluCounter, 2484 mSDsCounter, 0 mSdLazyCounter, 1053 mSolverCounterSat, 7 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2215 SdHoareTripleChecker+Valid, 4676 SdHoareTripleChecker+Invalid, 1063 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1053 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.3s IncrementalHoareTripleChecker+Time [2021-11-25 20:36:14,133 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2215 Valid, 4676 Invalid, 1063 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1053 Invalid, 3 Unknown, 0 Unchecked, 14.3s Time] [2021-11-25 20:36:14,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46493 states. [2021-11-25 20:36:16,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46493 to 46471. [2021-11-25 20:36:16,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46471 states, 30558 states have (on average 1.3788206034426336) internal successors, (42134), 31366 states have internal predecessors, (42134), 13473 states have call successors, (13473), 2438 states have call predecessors, (13473), 2437 states have return successors, (13595), 12945 states have call predecessors, (13595), 13469 states have call successors, (13595) [2021-11-25 20:36:16,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46471 states to 46471 states and 69202 transitions. [2021-11-25 20:36:16,735 INFO L78 Accepts]: Start accepts. Automaton has 46471 states and 69202 transitions. Word has length 526 [2021-11-25 20:36:16,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:36:16,736 INFO L470 AbstractCegarLoop]: Abstraction has 46471 states and 69202 transitions. [2021-11-25 20:36:16,736 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 3 states have call successors, (54), 2 states have call predecessors, (54), 1 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) [2021-11-25 20:36:16,736 INFO L276 IsEmpty]: Start isEmpty. Operand 46471 states and 69202 transitions. [2021-11-25 20:36:16,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 528 [2021-11-25 20:36:16,742 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:36:16,743 INFO L514 BasicCegarLoop]: trace histogram [51, 50, 50, 50, 50, 50, 50, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:36:16,743 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-25 20:36:16,743 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-25 20:36:16,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:36:16,744 INFO L85 PathProgramCache]: Analyzing trace with hash 535309936, now seen corresponding path program 1 times [2021-11-25 20:36:16,744 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:36:16,744 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1471108422] [2021-11-25 20:36:16,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:36:16,745 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:36:17,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:36:17,518 INFO L134 CoverageAnalysis]: Checked inductivity of 9900 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9900 trivial. 0 not checked. [2021-11-25 20:36:17,518 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:36:17,518 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1471108422] [2021-11-25 20:36:17,518 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1471108422] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:36:17,519 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:36:17,519 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 20:36:17,519 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [824146657] [2021-11-25 20:36:17,519 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:36:17,520 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 20:36:17,520 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:36:17,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 20:36:17,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:36:17,521 INFO L87 Difference]: Start difference. First operand 46471 states and 69202 transitions. Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 3 states have call successors, (54), 2 states have call predecessors, (54), 1 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) [2021-11-25 20:36:20,463 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:36:26,690 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:36:34,417 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:36:35,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:36:35,648 INFO L93 Difference]: Finished difference Result 135916 states and 202281 transitions. [2021-11-25 20:36:35,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 20:36:35,649 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 3 states have call successors, (54), 2 states have call predecessors, (54), 1 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) Word has length 527 [2021-11-25 20:36:35,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:36:36,298 INFO L225 Difference]: With dead ends: 135916 [2021-11-25 20:36:36,299 INFO L226 Difference]: Without dead ends: 89546 [2021-11-25 20:36:36,458 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:36:36,459 INFO L933 BasicCegarLoop]: 2968 mSDtfsCounter, 2221 mSDsluCounter, 2484 mSDsCounter, 0 mSdLazyCounter, 1196 mSolverCounterSat, 7 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2232 SdHoareTripleChecker+Valid, 4983 SdHoareTripleChecker+Invalid, 1206 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1196 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.7s IncrementalHoareTripleChecker+Time [2021-11-25 20:36:36,459 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2232 Valid, 4983 Invalid, 1206 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1196 Invalid, 3 Unknown, 0 Unchecked, 15.7s Time] [2021-11-25 20:36:36,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89546 states. [2021-11-25 20:36:39,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89546 to 89524. [2021-11-25 20:36:39,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89524 states, 58932 states have (on average 1.376858073712075) internal successors, (81141), 60502 states have internal predecessors, (81141), 25834 states have call successors, (25834), 4756 states have call predecessors, (25834), 4755 states have return successors, (26067), 24816 states have call predecessors, (26067), 25830 states have call successors, (26067) [2021-11-25 20:36:40,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89524 states to 89524 states and 133042 transitions. [2021-11-25 20:36:40,611 INFO L78 Accepts]: Start accepts. Automaton has 89524 states and 133042 transitions. Word has length 527 [2021-11-25 20:36:40,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:36:40,612 INFO L470 AbstractCegarLoop]: Abstraction has 89524 states and 133042 transitions. [2021-11-25 20:36:40,612 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 3 states have call successors, (54), 2 states have call predecessors, (54), 1 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) [2021-11-25 20:36:40,612 INFO L276 IsEmpty]: Start isEmpty. Operand 89524 states and 133042 transitions. [2021-11-25 20:36:40,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 548 [2021-11-25 20:36:40,619 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:36:40,620 INFO L514 BasicCegarLoop]: trace histogram [51, 50, 50, 50, 50, 50, 50, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:36:40,620 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-25 20:36:40,620 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-25 20:36:40,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:36:40,621 INFO L85 PathProgramCache]: Analyzing trace with hash 1978257038, now seen corresponding path program 1 times [2021-11-25 20:36:40,622 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:36:40,622 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1254284646] [2021-11-25 20:36:40,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:36:40,622 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:36:41,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:36:41,559 INFO L134 CoverageAnalysis]: Checked inductivity of 9900 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9900 trivial. 0 not checked. [2021-11-25 20:36:41,559 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:36:41,560 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1254284646] [2021-11-25 20:36:41,560 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1254284646] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:36:41,560 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:36:41,560 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 20:36:41,560 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1528766547] [2021-11-25 20:36:41,561 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:36:41,562 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 20:36:41,562 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:36:41,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 20:36:41,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:36:41,563 INFO L87 Difference]: Start difference. First operand 89524 states and 133042 transitions. Second operand has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 3 states have call successors, (57), 2 states have call predecessors, (57), 1 states have return successors, (53), 3 states have call predecessors, (53), 3 states have call successors, (53) [2021-11-25 20:36:45,420 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:36:50,851 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:36:56,764 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:37:00,847 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:37:01,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:37:01,997 INFO L93 Difference]: Finished difference Result 252529 states and 375556 transitions. [2021-11-25 20:37:01,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 20:37:01,998 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 3 states have call successors, (57), 2 states have call predecessors, (57), 1 states have return successors, (53), 3 states have call predecessors, (53), 3 states have call successors, (53) Word has length 547 [2021-11-25 20:37:01,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:37:03,124 INFO L225 Difference]: With dead ends: 252529 [2021-11-25 20:37:03,124 INFO L226 Difference]: Without dead ends: 163106 [2021-11-25 20:37:03,482 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:37:03,482 INFO L933 BasicCegarLoop]: 2914 mSDtfsCounter, 2049 mSDsluCounter, 2482 mSDsCounter, 0 mSdLazyCounter, 1142 mSolverCounterSat, 16 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2058 SdHoareTripleChecker+Valid, 4923 SdHoareTripleChecker+Invalid, 1161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 1142 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.2s IncrementalHoareTripleChecker+Time [2021-11-25 20:37:03,483 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2058 Valid, 4923 Invalid, 1161 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 1142 Invalid, 3 Unknown, 0 Unchecked, 16.2s Time] [2021-11-25 20:37:03,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163106 states. [2021-11-25 20:37:09,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163106 to 162956. [2021-11-25 20:37:09,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 162956 states, 107958 states have (on average 1.378378628725986) internal successors, (148807), 111079 states have internal predecessors, (148807), 46292 states have call successors, (46292), 8704 states have call predecessors, (46292), 8703 states have return successors, (46700), 44126 states have call predecessors, (46700), 46288 states have call successors, (46700) [2021-11-25 20:37:10,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162956 states to 162956 states and 241799 transitions. [2021-11-25 20:37:10,830 INFO L78 Accepts]: Start accepts. Automaton has 162956 states and 241799 transitions. Word has length 547 [2021-11-25 20:37:10,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:37:10,831 INFO L470 AbstractCegarLoop]: Abstraction has 162956 states and 241799 transitions. [2021-11-25 20:37:10,832 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 3 states have call successors, (57), 2 states have call predecessors, (57), 1 states have return successors, (53), 3 states have call predecessors, (53), 3 states have call successors, (53) [2021-11-25 20:37:10,832 INFO L276 IsEmpty]: Start isEmpty. Operand 162956 states and 241799 transitions. [2021-11-25 20:37:10,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 570 [2021-11-25 20:37:10,840 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:37:10,841 INFO L514 BasicCegarLoop]: trace histogram [54, 50, 50, 50, 50, 50, 50, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:37:10,841 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-25 20:37:10,841 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-25 20:37:10,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:37:10,842 INFO L85 PathProgramCache]: Analyzing trace with hash 1552951216, now seen corresponding path program 1 times [2021-11-25 20:37:10,842 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:37:10,842 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1461003482] [2021-11-25 20:37:10,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:37:10,843 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:37:11,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:37:11,929 INFO L134 CoverageAnalysis]: Checked inductivity of 10247 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10247 trivial. 0 not checked. [2021-11-25 20:37:11,929 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:37:11,930 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1461003482] [2021-11-25 20:37:11,930 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1461003482] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:37:11,930 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:37:11,930 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-25 20:37:11,930 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [182724910] [2021-11-25 20:37:11,930 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:37:11,931 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-25 20:37:11,931 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:37:11,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-25 20:37:11,932 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-25 20:37:11,932 INFO L87 Difference]: Start difference. First operand 162956 states and 241799 transitions. Second operand has 5 states, 5 states have (on average 17.0) internal successors, (85), 4 states have internal predecessors, (85), 2 states have call successors, (63), 3 states have call predecessors, (63), 1 states have return successors, (61), 2 states have call predecessors, (61), 2 states have call successors, (61) [2021-11-25 20:37:16,117 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:37:24,235 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:37:40,667 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:37:43,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:37:43,928 INFO L93 Difference]: Finished difference Result 324083 states and 481438 transitions. [2021-11-25 20:37:43,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-25 20:37:43,928 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.0) internal successors, (85), 4 states have internal predecessors, (85), 2 states have call successors, (63), 3 states have call predecessors, (63), 1 states have return successors, (61), 2 states have call predecessors, (61), 2 states have call successors, (61) Word has length 569 [2021-11-25 20:37:43,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:37:45,555 INFO L225 Difference]: With dead ends: 324083 [2021-11-25 20:37:45,555 INFO L226 Difference]: Without dead ends: 324081 [2021-11-25 20:37:46,013 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-25 20:37:46,029 INFO L933 BasicCegarLoop]: 2626 mSDtfsCounter, 2285 mSDsluCounter, 8685 mSDsCounter, 0 mSdLazyCounter, 2097 mSolverCounterSat, 4 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2298 SdHoareTripleChecker+Valid, 9762 SdHoareTripleChecker+Invalid, 2104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 2097 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24.5s IncrementalHoareTripleChecker+Time [2021-11-25 20:37:46,030 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2298 Valid, 9762 Invalid, 2104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 2097 Invalid, 3 Unknown, 0 Unchecked, 24.5s Time] [2021-11-25 20:37:46,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 324081 states.