./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-radio-radio-si476x.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0f8a17c6 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a9c971d-468b-4e25-8254-ce45e49ccf23/bin/utaipan-UbGMyvGFUs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a9c971d-468b-4e25-8254-ce45e49ccf23/bin/utaipan-UbGMyvGFUs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a9c971d-468b-4e25-8254-ce45e49ccf23/bin/utaipan-UbGMyvGFUs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a9c971d-468b-4e25-8254-ce45e49ccf23/bin/utaipan-UbGMyvGFUs/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-radio-radio-si476x.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a9c971d-468b-4e25-8254-ce45e49ccf23/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a9c971d-468b-4e25-8254-ce45e49ccf23/bin/utaipan-UbGMyvGFUs --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 4c72fad0f4736d2d4eb53bca18880400af0864c4b127cd0e90e1329def3f1884 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 15:08:26,899 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 15:08:26,901 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 15:08:26,937 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 15:08:26,938 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 15:08:26,940 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 15:08:26,941 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 15:08:26,944 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 15:08:26,946 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 15:08:26,948 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 15:08:26,949 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 15:08:26,951 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 15:08:26,951 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 15:08:26,953 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 15:08:26,954 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 15:08:26,972 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 15:08:26,973 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 15:08:26,974 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 15:08:26,976 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 15:08:26,979 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 15:08:26,981 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 15:08:26,983 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 15:08:26,985 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 15:08:26,986 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 15:08:26,990 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 15:08:26,991 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 15:08:26,991 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 15:08:26,992 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 15:08:26,993 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 15:08:26,994 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 15:08:26,995 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 15:08:27,008 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 15:08:27,009 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 15:08:27,010 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 15:08:27,011 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 15:08:27,011 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 15:08:27,012 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 15:08:27,013 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 15:08:27,013 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 15:08:27,014 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 15:08:27,015 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 15:08:27,016 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a9c971d-468b-4e25-8254-ce45e49ccf23/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-19 15:08:27,042 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 15:08:27,043 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 15:08:27,043 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 15:08:27,044 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 15:08:27,044 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-19 15:08:27,044 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-19 15:08:27,044 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-19 15:08:27,044 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-19 15:08:27,045 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-19 15:08:27,045 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-19 15:08:27,045 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-19 15:08:27,045 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-19 15:08:27,045 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-19 15:08:27,046 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-19 15:08:27,046 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-19 15:08:27,046 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-19 15:08:27,047 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 15:08:27,047 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-19 15:08:27,047 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 15:08:27,047 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-19 15:08:27,047 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 15:08:27,048 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-19 15:08:27,048 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-19 15:08:27,048 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 15:08:27,048 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 15:08:27,048 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-19 15:08:27,049 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 15:08:27,049 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 15:08:27,049 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 15:08:27,049 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 15:08:27,049 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 15:08:27,050 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-19 15:08:27,050 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-19 15:08:27,050 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-19 15:08:27,050 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-19 15:08:27,050 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 15:08:27,050 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-19 15:08:27,051 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_8a9c971d-468b-4e25-8254-ce45e49ccf23/bin/utaipan-UbGMyvGFUs/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a9c971d-468b-4e25-8254-ce45e49ccf23/bin/utaipan-UbGMyvGFUs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4c72fad0f4736d2d4eb53bca18880400af0864c4b127cd0e90e1329def3f1884 [2021-11-19 15:08:27,287 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 15:08:27,308 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 15:08:27,311 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 15:08:27,312 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 15:08:27,313 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 15:08:27,314 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a9c971d-468b-4e25-8254-ce45e49ccf23/bin/utaipan-UbGMyvGFUs/../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-radio-radio-si476x.cil.i [2021-11-19 15:08:27,379 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a9c971d-468b-4e25-8254-ce45e49ccf23/bin/utaipan-UbGMyvGFUs/data/409fe1f10/8d2183cc1d6344f4824bbb951a5db7c9/FLAG3bfbcd2a0 [2021-11-19 15:08:28,397 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 15:08:28,397 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a9c971d-468b-4e25-8254-ce45e49ccf23/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-radio-radio-si476x.cil.i [2021-11-19 15:08:28,472 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a9c971d-468b-4e25-8254-ce45e49ccf23/bin/utaipan-UbGMyvGFUs/data/409fe1f10/8d2183cc1d6344f4824bbb951a5db7c9/FLAG3bfbcd2a0 [2021-11-19 15:08:28,761 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a9c971d-468b-4e25-8254-ce45e49ccf23/bin/utaipan-UbGMyvGFUs/data/409fe1f10/8d2183cc1d6344f4824bbb951a5db7c9 [2021-11-19 15:08:28,765 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 15:08:28,768 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 15:08:28,770 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 15:08:28,770 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 15:08:28,773 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 15:08:28,774 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:08:28" (1/1) ... [2021-11-19 15:08:28,775 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@656a1e12 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:08:28, skipping insertion in model container [2021-11-19 15:08:28,776 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:08:28" (1/1) ... [2021-11-19 15:08:28,784 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 15:08:28,985 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 15:08:30,274 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 15:08:30,525 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 15:08:32,075 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_8a9c971d-468b-4e25-8254-ce45e49ccf23/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-radio-radio-si476x.cil.i[379788,379801] [2021-11-19 15:08:32,078 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_8a9c971d-468b-4e25-8254-ce45e49ccf23/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-radio-radio-si476x.cil.i[379954,379967] [2021-11-19 15:08:32,079 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_8a9c971d-468b-4e25-8254-ce45e49ccf23/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-radio-radio-si476x.cil.i[380118,380131] [2021-11-19 15:08:32,079 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_8a9c971d-468b-4e25-8254-ce45e49ccf23/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-radio-radio-si476x.cil.i[380283,380296] [2021-11-19 15:08:32,114 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 15:08:32,200 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-11-19 15:08:32,201 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@16c32e04 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:08:32, skipping insertion in model container [2021-11-19 15:08:32,201 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 15:08:32,201 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-19 15:08:32,204 INFO L158 Benchmark]: Toolchain (without parser) took 3434.68ms. Allocated memory is still 127.9MB. Free memory was 86.2MB in the beginning and 58.8MB in the end (delta: 27.4MB). Peak memory consumption was 78.8MB. Max. memory is 16.1GB. [2021-11-19 15:08:32,205 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 88.1MB. Free memory is still 57.3MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 15:08:32,206 INFO L158 Benchmark]: CACSL2BoogieTranslator took 3431.58ms. Allocated memory is still 127.9MB. Free memory was 85.9MB in the beginning and 58.8MB in the end (delta: 27.1MB). Peak memory consumption was 78.8MB. Max. memory is 16.1GB. [2021-11-19 15:08:32,208 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 88.1MB. Free memory is still 57.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 3431.58ms. Allocated memory is still 127.9MB. Free memory was 85.9MB in the beginning and 58.8MB in the end (delta: 27.1MB). Peak memory consumption was 78.8MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 5122]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a9c971d-468b-4e25-8254-ce45e49ccf23/bin/utaipan-UbGMyvGFUs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a9c971d-468b-4e25-8254-ce45e49ccf23/bin/utaipan-UbGMyvGFUs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a9c971d-468b-4e25-8254-ce45e49ccf23/bin/utaipan-UbGMyvGFUs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a9c971d-468b-4e25-8254-ce45e49ccf23/bin/utaipan-UbGMyvGFUs/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-radio-radio-si476x.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a9c971d-468b-4e25-8254-ce45e49ccf23/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a9c971d-468b-4e25-8254-ce45e49ccf23/bin/utaipan-UbGMyvGFUs --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 4c72fad0f4736d2d4eb53bca18880400af0864c4b127cd0e90e1329def3f1884 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 15:08:34,365 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 15:08:34,367 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 15:08:34,412 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 15:08:34,413 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 15:08:34,418 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 15:08:34,420 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 15:08:34,424 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 15:08:34,428 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 15:08:34,436 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 15:08:34,438 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 15:08:34,439 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 15:08:34,440 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 15:08:34,442 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 15:08:34,445 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 15:08:34,449 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 15:08:34,451 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 15:08:34,452 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 15:08:34,455 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 15:08:34,471 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 15:08:34,473 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 15:08:34,474 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 15:08:34,477 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 15:08:34,479 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 15:08:34,488 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 15:08:34,488 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 15:08:34,489 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 15:08:34,491 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 15:08:34,492 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 15:08:34,493 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 15:08:34,494 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 15:08:34,495 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 15:08:34,497 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 15:08:34,498 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 15:08:34,500 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 15:08:34,501 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 15:08:34,502 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 15:08:34,502 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 15:08:34,502 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 15:08:34,504 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 15:08:34,505 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 15:08:34,510 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a9c971d-468b-4e25-8254-ce45e49ccf23/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-19 15:08:34,558 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 15:08:34,558 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 15:08:34,560 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 15:08:34,560 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 15:08:34,560 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-19 15:08:34,560 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-19 15:08:34,560 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-19 15:08:34,561 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-19 15:08:34,561 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-19 15:08:34,561 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-19 15:08:34,563 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 15:08:34,563 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 15:08:34,564 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-19 15:08:34,564 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 15:08:34,564 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-19 15:08:34,564 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-19 15:08:34,564 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-19 15:08:34,564 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-19 15:08:34,565 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 15:08:34,565 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 15:08:34,565 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-19 15:08:34,565 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 15:08:34,565 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-19 15:08:34,566 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 15:08:34,566 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 15:08:34,566 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 15:08:34,566 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 15:08:34,566 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-19 15:08:34,567 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-19 15:08:34,567 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-19 15:08:34,567 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-19 15:08:34,567 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 15:08:34,567 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-19 15:08:34,567 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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_8a9c971d-468b-4e25-8254-ce45e49ccf23/bin/utaipan-UbGMyvGFUs/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a9c971d-468b-4e25-8254-ce45e49ccf23/bin/utaipan-UbGMyvGFUs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4c72fad0f4736d2d4eb53bca18880400af0864c4b127cd0e90e1329def3f1884 [2021-11-19 15:08:34,965 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 15:08:34,999 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 15:08:35,002 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 15:08:35,004 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 15:08:35,004 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 15:08:35,006 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a9c971d-468b-4e25-8254-ce45e49ccf23/bin/utaipan-UbGMyvGFUs/../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-radio-radio-si476x.cil.i [2021-11-19 15:08:35,072 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a9c971d-468b-4e25-8254-ce45e49ccf23/bin/utaipan-UbGMyvGFUs/data/cb40cae32/a86e1cab575e41909b3ad8caea051b3d/FLAG4a1ed24df [2021-11-19 15:08:36,100 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 15:08:36,101 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a9c971d-468b-4e25-8254-ce45e49ccf23/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-radio-radio-si476x.cil.i [2021-11-19 15:08:36,162 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a9c971d-468b-4e25-8254-ce45e49ccf23/bin/utaipan-UbGMyvGFUs/data/cb40cae32/a86e1cab575e41909b3ad8caea051b3d/FLAG4a1ed24df [2021-11-19 15:08:36,438 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a9c971d-468b-4e25-8254-ce45e49ccf23/bin/utaipan-UbGMyvGFUs/data/cb40cae32/a86e1cab575e41909b3ad8caea051b3d [2021-11-19 15:08:36,440 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 15:08:36,442 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 15:08:36,447 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 15:08:36,448 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 15:08:36,451 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 15:08:36,452 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:08:36" (1/1) ... [2021-11-19 15:08:36,453 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@633c1b15 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:08:36, skipping insertion in model container [2021-11-19 15:08:36,453 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:08:36" (1/1) ... [2021-11-19 15:08:36,460 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 15:08:36,724 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 15:08:39,926 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_8a9c971d-468b-4e25-8254-ce45e49ccf23/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-radio-radio-si476x.cil.i[379788,379801] [2021-11-19 15:08:39,929 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_8a9c971d-468b-4e25-8254-ce45e49ccf23/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-radio-radio-si476x.cil.i[379954,379967] [2021-11-19 15:08:39,930 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_8a9c971d-468b-4e25-8254-ce45e49ccf23/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-radio-radio-si476x.cil.i[380118,380131] [2021-11-19 15:08:39,931 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_8a9c971d-468b-4e25-8254-ce45e49ccf23/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-radio-radio-si476x.cil.i[380283,380296] [2021-11-19 15:08:39,956 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 15:08:40,042 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-19 15:08:40,117 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 15:08:40,513 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_8a9c971d-468b-4e25-8254-ce45e49ccf23/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-radio-radio-si476x.cil.i[379788,379801] [2021-11-19 15:08:40,514 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_8a9c971d-468b-4e25-8254-ce45e49ccf23/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-radio-radio-si476x.cil.i[379954,379967] [2021-11-19 15:08:40,514 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_8a9c971d-468b-4e25-8254-ce45e49ccf23/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-radio-radio-si476x.cil.i[380118,380131] [2021-11-19 15:08:40,515 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_8a9c971d-468b-4e25-8254-ce45e49ccf23/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-radio-radio-si476x.cil.i[380283,380296] [2021-11-19 15:08:40,546 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 15:08:40,597 INFO L203 MainTranslator]: Completed pre-run [2021-11-19 15:08:41,156 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_8a9c971d-468b-4e25-8254-ce45e49ccf23/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-radio-radio-si476x.cil.i[379788,379801] [2021-11-19 15:08:41,157 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_8a9c971d-468b-4e25-8254-ce45e49ccf23/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-radio-radio-si476x.cil.i[379954,379967] [2021-11-19 15:08:41,158 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_8a9c971d-468b-4e25-8254-ce45e49ccf23/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-radio-radio-si476x.cil.i[380118,380131] [2021-11-19 15:08:41,160 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_8a9c971d-468b-4e25-8254-ce45e49ccf23/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-radio-radio-si476x.cil.i[380283,380296] [2021-11-19 15:08:41,167 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 15:08:41,418 INFO L208 MainTranslator]: Completed translation [2021-11-19 15:08:41,418 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:08:41 WrapperNode [2021-11-19 15:08:41,419 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 15:08:41,424 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-19 15:08:41,424 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-19 15:08:41,424 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-19 15:08:41,432 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:08:41" (1/1) ... [2021-11-19 15:08:41,563 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:08:41" (1/1) ... [2021-11-19 15:08:41,803 INFO L137 Inliner]: procedures = 428, calls = 2522, calls flagged for inlining = 243, calls inlined = 230, statements flattened = 6824 [2021-11-19 15:08:41,804 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-19 15:08:41,806 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-19 15:08:41,806 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-19 15:08:41,806 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-19 15:08:41,815 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:08:41" (1/1) ... [2021-11-19 15:08:41,817 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:08:41" (1/1) ... [2021-11-19 15:08:41,873 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:08:41" (1/1) ... [2021-11-19 15:08:41,885 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:08:41" (1/1) ... [2021-11-19 15:08:42,099 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:08:41" (1/1) ... [2021-11-19 15:08:42,136 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:08:41" (1/1) ... [2021-11-19 15:08:42,199 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:08:41" (1/1) ... [2021-11-19 15:08:42,248 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-19 15:08:42,250 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-19 15:08:42,251 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-19 15:08:42,251 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-19 15:08:42,252 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:08:41" (1/1) ... [2021-11-19 15:08:42,259 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 15:08:42,271 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a9c971d-468b-4e25-8254-ce45e49ccf23/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 15:08:42,295 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a9c971d-468b-4e25-8254-ce45e49ccf23/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-19 15:08:42,321 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a9c971d-468b-4e25-8254-ce45e49ccf23/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-19 15:08:42,345 INFO L130 BoogieDeclarations]: Found specification of procedure si476x_core_has_diversity [2021-11-19 15:08:42,345 INFO L138 BoogieDeclarations]: Found implementation of procedure si476x_core_has_diversity [2021-11-19 15:08:42,345 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-19 15:08:42,346 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-19 15:08:42,346 INFO L130 BoogieDeclarations]: Found specification of procedure si476x_core_cmd_fm_acf_status [2021-11-19 15:08:42,346 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-19 15:08:42,346 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-19 15:08:42,346 INFO L130 BoogieDeclarations]: Found specification of procedure si476x_radio_s_ctrl [2021-11-19 15:08:42,346 INFO L138 BoogieDeclarations]: Found implementation of procedure si476x_radio_s_ctrl [2021-11-19 15:08:42,347 INFO L130 BoogieDeclarations]: Found specification of procedure si476x_radio_probe [2021-11-19 15:08:42,347 INFO L138 BoogieDeclarations]: Found implementation of procedure si476x_radio_probe [2021-11-19 15:08:42,347 INFO L130 BoogieDeclarations]: Found specification of procedure si476x_core_cmd_am_acf_status [2021-11-19 15:08:42,347 INFO L130 BoogieDeclarations]: Found specification of procedure si476x_core_cmd_fm_phase_div_status [2021-11-19 15:08:42,347 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-19 15:08:42,348 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-19 15:08:42,348 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_ctrl_handler_free [2021-11-19 15:08:42,348 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_ctrl_handler_free [2021-11-19 15:08:42,348 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2021-11-19 15:08:42,348 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2021-11-19 15:08:42,349 INFO L130 BoogieDeclarations]: Found specification of procedure si476x_core_lock [2021-11-19 15:08:42,349 INFO L138 BoogieDeclarations]: Found implementation of procedure si476x_core_lock [2021-11-19 15:08:42,349 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-19 15:08:42,349 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-19 15:08:42,349 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exit [2021-11-19 15:08:42,349 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exit [2021-11-19 15:08:42,350 INFO L130 BoogieDeclarations]: Found specification of procedure si476x_radio_read_acf_blob [2021-11-19 15:08:42,350 INFO L138 BoogieDeclarations]: Found implementation of procedure si476x_radio_read_acf_blob [2021-11-19 15:08:42,350 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-19 15:08:42,351 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2021-11-19 15:08:42,351 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-19 15:08:42,351 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-19 15:08:42,351 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-19 15:08:42,352 INFO L130 BoogieDeclarations]: Found specification of procedure si476x_core_cmd_fm_rsq_status [2021-11-19 15:08:42,352 INFO L130 BoogieDeclarations]: Found specification of procedure video_ioctl2 [2021-11-19 15:08:42,352 INFO L138 BoogieDeclarations]: Found implementation of procedure video_ioctl2 [2021-11-19 15:08:42,352 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-19 15:08:42,352 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-19 15:08:42,353 INFO L130 BoogieDeclarations]: Found specification of procedure si476x_radio_remove [2021-11-19 15:08:42,353 INFO L138 BoogieDeclarations]: Found implementation of procedure si476x_radio_remove [2021-11-19 15:08:42,353 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-11-19 15:08:42,353 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-11-19 15:08:42,354 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-11-19 15:08:42,355 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-11-19 15:08:42,355 INFO L130 BoogieDeclarations]: Found specification of procedure debugfs_remove_recursive [2021-11-19 15:08:42,355 INFO L138 BoogieDeclarations]: Found implementation of procedure debugfs_remove_recursive [2021-11-19 15:08:42,356 INFO L130 BoogieDeclarations]: Found specification of procedure si476x_core_has_am [2021-11-19 15:08:42,356 INFO L138 BoogieDeclarations]: Found implementation of procedure si476x_core_has_am [2021-11-19 15:08:42,356 INFO L130 BoogieDeclarations]: Found specification of procedure si476x_radio_fops_read [2021-11-19 15:08:42,356 INFO L138 BoogieDeclarations]: Found implementation of procedure si476x_radio_fops_read [2021-11-19 15:08:42,356 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_ctrl_subscribe_event [2021-11-19 15:08:42,356 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_ctrl_subscribe_event [2021-11-19 15:08:42,357 INFO L130 BoogieDeclarations]: Found specification of procedure si476x_radio_s_tuner [2021-11-19 15:08:42,357 INFO L138 BoogieDeclarations]: Found implementation of procedure si476x_radio_s_tuner [2021-11-19 15:08:42,358 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~C_INT [2021-11-19 15:08:42,358 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~C_INT [2021-11-19 15:08:42,358 INFO L130 BoogieDeclarations]: Found specification of procedure si476x_radio_change_func [2021-11-19 15:08:42,358 INFO L138 BoogieDeclarations]: Found implementation of procedure si476x_radio_change_func [2021-11-19 15:08:42,358 INFO L130 BoogieDeclarations]: Found specification of procedure si476x_radio_s_frequency [2021-11-19 15:08:42,358 INFO L138 BoogieDeclarations]: Found implementation of procedure si476x_radio_s_frequency [2021-11-19 15:08:42,359 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-19 15:08:42,359 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2021-11-19 15:08:42,359 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2021-11-19 15:08:42,359 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2021-11-19 15:08:42,360 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2021-11-19 15:08:42,360 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2021-11-19 15:08:42,361 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2021-11-19 15:08:42,361 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_5 [2021-11-19 15:08:42,361 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_5 [2021-11-19 15:08:42,361 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_4 [2021-11-19 15:08:42,361 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_4 [2021-11-19 15:08:42,362 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_6 [2021-11-19 15:08:42,362 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_6 [2021-11-19 15:08:42,362 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-19 15:08:42,362 INFO L130 BoogieDeclarations]: Found specification of procedure si476x_to_v4l2 [2021-11-19 15:08:42,362 INFO L138 BoogieDeclarations]: Found implementation of procedure si476x_to_v4l2 [2021-11-19 15:08:42,363 INFO L130 BoogieDeclarations]: Found specification of procedure si476x_radio_querycap [2021-11-19 15:08:42,363 INFO L138 BoogieDeclarations]: Found implementation of procedure si476x_radio_querycap [2021-11-19 15:08:42,364 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-19 15:08:42,364 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-19 15:08:42,364 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-19 15:08:42,364 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2021-11-19 15:08:42,365 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2021-11-19 15:08:42,365 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-19 15:08:42,365 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-19 15:08:42,366 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-11-19 15:08:42,366 INFO L130 BoogieDeclarations]: Found specification of procedure si476x_radio_s_register [2021-11-19 15:08:42,366 INFO L138 BoogieDeclarations]: Found implementation of procedure si476x_radio_s_register [2021-11-19 15:08:42,366 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_cmd_lock_of_si476x_core [2021-11-19 15:08:42,366 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_cmd_lock_of_si476x_core [2021-11-19 15:08:42,367 INFO L130 BoogieDeclarations]: Found specification of procedure si476x_core_cmd_am_seek_start [2021-11-19 15:08:42,367 INFO L130 BoogieDeclarations]: Found specification of procedure si476x_core_cmd_agc_status [2021-11-19 15:08:42,367 INFO L130 BoogieDeclarations]: Found specification of procedure si476x_radio_g_frequency [2021-11-19 15:08:42,367 INFO L138 BoogieDeclarations]: Found implementation of procedure si476x_radio_g_frequency [2021-11-19 15:08:42,367 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_event_unsubscribe [2021-11-19 15:08:42,367 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_event_unsubscribe [2021-11-19 15:08:42,368 INFO L130 BoogieDeclarations]: Found specification of procedure si476x_radio_fops_open [2021-11-19 15:08:42,368 INFO L138 BoogieDeclarations]: Found implementation of procedure si476x_radio_fops_open [2021-11-19 15:08:42,368 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2021-11-19 15:08:42,369 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-19 15:08:42,369 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-19 15:08:42,369 INFO L130 BoogieDeclarations]: Found specification of procedure si476x_radio_add_new_custom [2021-11-19 15:08:42,369 INFO L138 BoogieDeclarations]: Found implementation of procedure si476x_radio_add_new_custom [2021-11-19 15:08:42,370 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2021-11-19 15:08:42,372 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2021-11-19 15:08:42,375 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-19 15:08:42,375 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-19 15:08:42,375 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-19 15:08:42,376 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-19 15:08:42,376 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2021-11-19 15:08:42,377 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-19 15:08:42,378 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-19 15:08:42,378 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-19 15:08:42,379 INFO L130 BoogieDeclarations]: Found specification of procedure si476x_core_cmd_am_tune_freq [2021-11-19 15:08:42,384 INFO L130 BoogieDeclarations]: Found specification of procedure regmap_read [2021-11-19 15:08:42,385 INFO L138 BoogieDeclarations]: Found implementation of procedure regmap_read [2021-11-19 15:08:42,385 INFO L130 BoogieDeclarations]: Found specification of procedure si476x_core_is_in_am_receiver_mode [2021-11-19 15:08:42,385 INFO L138 BoogieDeclarations]: Found implementation of procedure si476x_core_is_in_am_receiver_mode [2021-11-19 15:08:42,385 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_ctrl_handler_to_radio [2021-11-19 15:08:42,385 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_ctrl_handler_to_radio [2021-11-19 15:08:42,386 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2021-11-19 15:08:42,386 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2021-11-19 15:08:42,386 INFO L130 BoogieDeclarations]: Found specification of procedure si476x_radio_read_rds_blckcnt_blob [2021-11-19 15:08:42,386 INFO L138 BoogieDeclarations]: Found implementation of procedure si476x_radio_read_rds_blckcnt_blob [2021-11-19 15:08:42,386 INFO L130 BoogieDeclarations]: Found specification of procedure regmap_update_bits [2021-11-19 15:08:42,387 INFO L138 BoogieDeclarations]: Found implementation of procedure regmap_update_bits [2021-11-19 15:08:42,387 INFO L130 BoogieDeclarations]: Found specification of procedure si476x_radio_enum_freq_bands [2021-11-19 15:08:42,387 INFO L138 BoogieDeclarations]: Found implementation of procedure si476x_radio_enum_freq_bands [2021-11-19 15:08:42,387 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2021-11-19 15:08:42,387 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2021-11-19 15:08:42,387 INFO L130 BoogieDeclarations]: Found specification of procedure video_drvdata [2021-11-19 15:08:42,388 INFO L138 BoogieDeclarations]: Found implementation of procedure video_drvdata [2021-11-19 15:08:42,388 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-19 15:08:42,388 INFO L130 BoogieDeclarations]: Found specification of procedure si476x_core_cmd_fm_rds_blockcount [2021-11-19 15:08:42,388 INFO L130 BoogieDeclarations]: Found specification of procedure si476x_radio_g_register [2021-11-19 15:08:42,388 INFO L138 BoogieDeclarations]: Found implementation of procedure si476x_radio_g_register [2021-11-19 15:08:42,388 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-19 15:08:42,389 INFO L130 BoogieDeclarations]: Found specification of procedure si476x_core_cmd_fm_phase_diversity [2021-11-19 15:08:42,389 INFO L138 BoogieDeclarations]: Found implementation of procedure si476x_core_cmd_fm_phase_diversity [2021-11-19 15:08:42,389 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-19 15:08:42,389 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-19 15:08:42,389 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-19 15:08:42,389 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-19 15:08:42,390 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_to_si476x [2021-11-19 15:08:42,390 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_to_si476x [2021-11-19 15:08:42,390 INFO L130 BoogieDeclarations]: Found specification of procedure si476x_radio_do_post_powerup_init [2021-11-19 15:08:42,390 INFO L138 BoogieDeclarations]: Found implementation of procedure si476x_radio_do_post_powerup_init [2021-11-19 15:08:42,390 INFO L130 BoogieDeclarations]: Found specification of procedure regmap_write [2021-11-19 15:08:42,390 INFO L138 BoogieDeclarations]: Found implementation of procedure regmap_write [2021-11-19 15:08:42,391 INFO L130 BoogieDeclarations]: Found specification of procedure si476x_core_cmd_fm_seek_start [2021-11-19 15:08:42,391 INFO L130 BoogieDeclarations]: Found specification of procedure simple_read_from_buffer [2021-11-19 15:08:42,391 INFO L138 BoogieDeclarations]: Found implementation of procedure simple_read_from_buffer [2021-11-19 15:08:42,391 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-19 15:08:42,391 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-19 15:08:42,391 INFO L130 BoogieDeclarations]: Found specification of procedure video_device_release_empty [2021-11-19 15:08:42,392 INFO L138 BoogieDeclarations]: Found implementation of procedure video_device_release_empty [2021-11-19 15:08:42,392 INFO L130 BoogieDeclarations]: Found specification of procedure si476x_radio_read_rsq_blob [2021-11-19 15:08:42,392 INFO L138 BoogieDeclarations]: Found implementation of procedure si476x_radio_read_rsq_blob [2021-11-19 15:08:42,392 INFO L130 BoogieDeclarations]: Found specification of procedure si476x_radio_range_is_inside_of_the_band [2021-11-19 15:08:42,393 INFO L138 BoogieDeclarations]: Found implementation of procedure si476x_radio_range_is_inside_of_the_band [2021-11-19 15:08:42,393 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2021-11-19 15:08:42,393 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2021-11-19 15:08:42,393 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~C_INT [2021-11-19 15:08:42,393 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~C_INT [2021-11-19 15:08:42,393 INFO L130 BoogieDeclarations]: Found specification of procedure si476x_core_set_power_state [2021-11-19 15:08:42,394 INFO L138 BoogieDeclarations]: Found implementation of procedure si476x_core_set_power_state [2021-11-19 15:08:42,394 INFO L130 BoogieDeclarations]: Found specification of procedure regcache_cache_only [2021-11-19 15:08:42,394 INFO L138 BoogieDeclarations]: Found implementation of procedure regcache_cache_only [2021-11-19 15:08:42,394 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2021-11-19 15:08:42,394 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2021-11-19 15:08:42,394 INFO L130 BoogieDeclarations]: Found specification of procedure debugfs_create_file [2021-11-19 15:08:42,394 INFO L138 BoogieDeclarations]: Found implementation of procedure debugfs_create_file [2021-11-19 15:08:42,395 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~C_ULONG~X~$Pointer$~TO~C_LONG [2021-11-19 15:08:42,395 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~C_ULONG~X~$Pointer$~TO~C_LONG [2021-11-19 15:08:42,395 INFO L130 BoogieDeclarations]: Found specification of procedure si476x_radio_fops_release [2021-11-19 15:08:42,395 INFO L138 BoogieDeclarations]: Found implementation of procedure si476x_radio_fops_release [2021-11-19 15:08:42,395 INFO L130 BoogieDeclarations]: Found specification of procedure si476x_radio_s_hw_freq_seek [2021-11-19 15:08:42,395 INFO L138 BoogieDeclarations]: Found implementation of procedure si476x_radio_s_hw_freq_seek [2021-11-19 15:08:42,396 INFO L130 BoogieDeclarations]: Found specification of procedure si476x_radio_read_rsq_primary_blob [2021-11-19 15:08:42,396 INFO L138 BoogieDeclarations]: Found implementation of procedure si476x_radio_read_rsq_primary_blob [2021-11-19 15:08:42,396 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-11-19 15:08:42,396 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2021-11-19 15:08:42,396 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2021-11-19 15:08:42,396 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2021-11-19 15:08:42,396 INFO L130 BoogieDeclarations]: Found specification of procedure si476x_radio_read_agc_blob [2021-11-19 15:08:42,397 INFO L138 BoogieDeclarations]: Found implementation of procedure si476x_radio_read_agc_blob [2021-11-19 15:08:42,397 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-19 15:08:42,397 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-19 15:08:42,397 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~C_INT [2021-11-19 15:08:42,397 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~C_INT [2021-11-19 15:08:42,397 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_ctrl_new_std_menu [2021-11-19 15:08:42,397 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_ctrl_new_std_menu [2021-11-19 15:08:42,398 INFO L130 BoogieDeclarations]: Found specification of procedure si476x_radio_g_tuner [2021-11-19 15:08:42,398 INFO L138 BoogieDeclarations]: Found implementation of procedure si476x_radio_g_tuner [2021-11-19 15:08:42,398 INFO L130 BoogieDeclarations]: Found specification of procedure si476x_core_stop [2021-11-19 15:08:42,398 INFO L138 BoogieDeclarations]: Found implementation of procedure si476x_core_stop [2021-11-19 15:08:42,398 INFO L130 BoogieDeclarations]: Found specification of procedure si476x_radio_fops_poll [2021-11-19 15:08:42,398 INFO L138 BoogieDeclarations]: Found implementation of procedure si476x_radio_fops_poll [2021-11-19 15:08:42,399 INFO L130 BoogieDeclarations]: Found specification of procedure si476x_core_cmd_fm_tune_freq [2021-11-19 15:08:42,399 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_si476x_radio_driver_exit_17_2 [2021-11-19 15:08:42,399 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_si476x_radio_driver_exit_17_2 [2021-11-19 15:08:42,399 INFO L130 BoogieDeclarations]: Found specification of procedure si476x_core_is_a_secondary_tuner [2021-11-19 15:08:42,399 INFO L138 BoogieDeclarations]: Found implementation of procedure si476x_core_is_a_secondary_tuner [2021-11-19 15:08:42,399 INFO L130 BoogieDeclarations]: Found specification of procedure default_llseek [2021-11-19 15:08:42,399 INFO L138 BoogieDeclarations]: Found implementation of procedure default_llseek [2021-11-19 15:08:42,400 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2021-11-19 15:08:42,400 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2021-11-19 15:08:42,400 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_fh_is_singular_file [2021-11-19 15:08:42,400 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_fh_is_singular_file [2021-11-19 15:08:42,400 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-19 15:08:42,400 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-19 15:08:42,400 INFO L130 BoogieDeclarations]: Found specification of procedure si476x_core_unlock [2021-11-19 15:08:42,401 INFO L138 BoogieDeclarations]: Found implementation of procedure si476x_core_unlock [2021-11-19 15:08:42,401 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_fh_release [2021-11-19 15:08:42,401 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_fh_release [2021-11-19 15:08:42,401 INFO L130 BoogieDeclarations]: Found specification of procedure simple_open [2021-11-19 15:08:42,401 INFO L138 BoogieDeclarations]: Found implementation of procedure simple_open [2021-11-19 15:08:42,401 INFO L130 BoogieDeclarations]: Found specification of procedure si476x_radio_g_volatile_ctrl [2021-11-19 15:08:42,401 INFO L138 BoogieDeclarations]: Found implementation of procedure si476x_radio_g_volatile_ctrl [2021-11-19 15:08:42,402 INFO L130 BoogieDeclarations]: Found specification of procedure regcache_sync_region [2021-11-19 15:08:42,402 INFO L138 BoogieDeclarations]: Found implementation of procedure regcache_sync_region [2021-11-19 15:08:42,402 INFO L130 BoogieDeclarations]: Found specification of procedure si476x_core_cmd_am_rsq_status [2021-11-19 15:08:42,402 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-11-19 15:08:42,402 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-11-19 15:08:43,572 INFO L236 CfgBuilder]: Building ICFG [2021-11-19 15:08:43,576 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-19 15:08:44,287 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-19 15:09:25,532 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-19 15:09:25,687 INFO L277 CfgBuilder]: Performing block encoding [2021-11-19 15:09:25,712 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-19 15:09:25,713 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-19 15:09:25,719 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:09:25 BoogieIcfgContainer [2021-11-19 15:09:25,719 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-19 15:09:25,721 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-19 15:09:25,721 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-19 15:09:25,724 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-19 15:09:25,724 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 03:08:36" (1/3) ... [2021-11-19 15:09:25,725 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a5cef24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 03:09:25, skipping insertion in model container [2021-11-19 15:09:25,725 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:08:41" (2/3) ... [2021-11-19 15:09:25,725 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a5cef24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 03:09:25, skipping insertion in model container [2021-11-19 15:09:25,726 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:09:25" (3/3) ... [2021-11-19 15:09:25,727 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-radio-radio-si476x.cil.i [2021-11-19 15:09:25,734 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-19 15:09:25,738 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-11-19 15:09:25,812 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-19 15:09:25,823 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 [2021-11-19 15:09:25,823 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-11-19 15:09:25,908 INFO L276 IsEmpty]: Start isEmpty. Operand has 2626 states, 1830 states have (on average 1.3049180327868852) internal successors, (2388), 1833 states have internal predecessors, (2388), 703 states have call successors, (703), 91 states have call predecessors, (703), 90 states have return successors, (692), 692 states have call predecessors, (692), 692 states have call successors, (692) [2021-11-19 15:09:25,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 805 [2021-11-19 15:09:25,966 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:09:25,967 INFO L514 BasicCegarLoop]: trace histogram [71, 71, 70, 70, 70, 70, 70, 70, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 15:09:25,968 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_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-19 15:09:25,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:09:25,974 INFO L85 PathProgramCache]: Analyzing trace with hash -1544635232, now seen corresponding path program 1 times [2021-11-19 15:09:26,004 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 15:09:26,004 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [524871203] [2021-11-19 15:09:26,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:09:26,006 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 15:09:26,006 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a9c971d-468b-4e25-8254-ce45e49ccf23/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 15:09:26,016 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a9c971d-468b-4e25-8254-ce45e49ccf23/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 15:09:26,018 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a9c971d-468b-4e25-8254-ce45e49ccf23/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-19 15:09:29,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:09:29,330 INFO L263 TraceCheckSpWp]: Trace formula consists of 4003 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 15:09:29,377 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 15:09:31,108 INFO L134 CoverageAnalysis]: Checked inductivity of 21945 backedges. 210 proven. 0 refuted. 0 times theorem prover too weak. 21735 trivial. 0 not checked. [2021-11-19 15:09:31,108 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 15:09:33,162 INFO L134 CoverageAnalysis]: Checked inductivity of 21945 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21945 trivial. 0 not checked. [2021-11-19 15:09:33,164 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 15:09:33,164 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [524871203] [2021-11-19 15:09:33,164 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [524871203] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 15:09:33,165 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 15:09:33,165 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-19 15:09:33,167 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [855128737] [2021-11-19 15:09:33,169 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 15:09:33,183 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 15:09:33,183 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 15:09:33,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 15:09:33,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 15:09:33,229 INFO L87 Difference]: Start difference. First operand has 2626 states, 1830 states have (on average 1.3049180327868852) internal successors, (2388), 1833 states have internal predecessors, (2388), 703 states have call successors, (703), 91 states have call predecessors, (703), 90 states have return successors, (692), 692 states have call predecessors, (692), 692 states have call successors, (692) Second operand has 4 states, 4 states have (on average 30.75) internal successors, (123), 4 states have internal predecessors, (123), 4 states have call successors, (77), 3 states have call predecessors, (77), 3 states have return successors, (75), 4 states have call predecessors, (75), 4 states have call successors, (75) [2021-11-19 15:09:35,771 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 15:09:50,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:09:50,329 INFO L93 Difference]: Finished difference Result 9814 states and 14502 transitions. [2021-11-19 15:09:50,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 15:09:50,332 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 30.75) internal successors, (123), 4 states have internal predecessors, (123), 4 states have call successors, (77), 3 states have call predecessors, (77), 3 states have return successors, (75), 4 states have call predecessors, (75), 4 states have call successors, (75) Word has length 804 [2021-11-19 15:09:50,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:09:50,435 INFO L225 Difference]: With dead ends: 9814 [2021-11-19 15:09:50,435 INFO L226 Difference]: Without dead ends: 7306 [2021-11-19 15:09:50,469 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1606 GetRequests, 1604 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 15:09:50,473 INFO L933 BasicCegarLoop]: 4974 mSDtfsCounter, 9296 mSDsluCounter, 5724 mSDsCounter, 0 mSdLazyCounter, 1461 mSolverCounterSat, 1236 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9296 SdHoareTripleChecker+Valid, 10698 SdHoareTripleChecker+Invalid, 2698 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1236 IncrementalHoareTripleChecker+Valid, 1461 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.3s IncrementalHoareTripleChecker+Time [2021-11-19 15:09:50,474 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9296 Valid, 10698 Invalid, 2698 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1236 Valid, 1461 Invalid, 1 Unknown, 0 Unchecked, 16.3s Time] [2021-11-19 15:09:50,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7306 states. [2021-11-19 15:09:51,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7306 to 7287. [2021-11-19 15:09:51,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7287 states, 5147 states have (on average 1.3137750145715952) internal successors, (6762), 5152 states have internal predecessors, (6762), 1874 states have call successors, (1874), 264 states have call predecessors, (1874), 263 states have return successors, (1870), 1870 states have call predecessors, (1870), 1870 states have call successors, (1870) [2021-11-19 15:09:51,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7287 states to 7287 states and 10506 transitions. [2021-11-19 15:09:51,201 INFO L78 Accepts]: Start accepts. Automaton has 7287 states and 10506 transitions. Word has length 804 [2021-11-19 15:09:51,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 15:09:51,205 INFO L470 AbstractCegarLoop]: Abstraction has 7287 states and 10506 transitions. [2021-11-19 15:09:51,205 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.75) internal successors, (123), 4 states have internal predecessors, (123), 4 states have call successors, (77), 3 states have call predecessors, (77), 3 states have return successors, (75), 4 states have call predecessors, (75), 4 states have call successors, (75) [2021-11-19 15:09:51,205 INFO L276 IsEmpty]: Start isEmpty. Operand 7287 states and 10506 transitions. [2021-11-19 15:09:51,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 811 [2021-11-19 15:09:51,247 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:09:51,248 INFO L514 BasicCegarLoop]: trace histogram [71, 71, 70, 70, 70, 70, 70, 70, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 15:09:51,341 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a9c971d-468b-4e25-8254-ce45e49ccf23/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-19 15:09:51,467 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a9c971d-468b-4e25-8254-ce45e49ccf23/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 15:09:51,468 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_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-19 15:09:51,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:09:51,469 INFO L85 PathProgramCache]: Analyzing trace with hash -1764280493, now seen corresponding path program 1 times [2021-11-19 15:09:51,473 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 15:09:51,473 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [665947805] [2021-11-19 15:09:51,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:09:51,474 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 15:09:51,474 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a9c971d-468b-4e25-8254-ce45e49ccf23/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 15:09:51,478 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a9c971d-468b-4e25-8254-ce45e49ccf23/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 15:09:51,521 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a9c971d-468b-4e25-8254-ce45e49ccf23/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-19 15:09:54,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:09:54,755 INFO L263 TraceCheckSpWp]: Trace formula consists of 4054 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 15:09:54,796 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 15:09:56,410 INFO L134 CoverageAnalysis]: Checked inductivity of 21945 backedges. 210 proven. 0 refuted. 0 times theorem prover too weak. 21735 trivial. 0 not checked. [2021-11-19 15:09:56,410 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 15:09:58,610 INFO L134 CoverageAnalysis]: Checked inductivity of 21945 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21945 trivial. 0 not checked. [2021-11-19 15:09:58,611 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 15:09:58,611 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [665947805] [2021-11-19 15:09:58,611 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [665947805] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 15:09:58,611 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 15:09:58,612 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-19 15:09:58,613 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1932338628] [2021-11-19 15:09:58,613 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 15:09:58,617 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 15:09:58,618 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 15:09:58,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 15:09:58,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 15:09:58,619 INFO L87 Difference]: Start difference. First operand 7287 states and 10506 transitions. Second operand has 4 states, 4 states have (on average 31.5) internal successors, (126), 4 states have internal predecessors, (126), 4 states have call successors, (79), 3 states have call predecessors, (79), 3 states have return successors, (75), 4 states have call predecessors, (75), 4 states have call successors, (75) [2021-11-19 15:10:01,140 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 15:10:15,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:10:15,557 INFO L93 Difference]: Finished difference Result 23919 states and 34476 transitions. [2021-11-19 15:10:15,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 15:10:15,558 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 31.5) internal successors, (126), 4 states have internal predecessors, (126), 4 states have call successors, (79), 3 states have call predecessors, (79), 3 states have return successors, (75), 4 states have call predecessors, (75), 4 states have call successors, (75) Word has length 810 [2021-11-19 15:10:15,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:10:15,838 INFO L225 Difference]: With dead ends: 23919 [2021-11-19 15:10:15,839 INFO L226 Difference]: Without dead ends: 16777 [2021-11-19 15:10:15,881 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1618 GetRequests, 1616 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 15:10:15,882 INFO L933 BasicCegarLoop]: 4976 mSDtfsCounter, 9413 mSDsluCounter, 5824 mSDsCounter, 0 mSdLazyCounter, 1407 mSolverCounterSat, 1245 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9413 SdHoareTripleChecker+Valid, 10800 SdHoareTripleChecker+Invalid, 2653 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1245 IncrementalHoareTripleChecker+Valid, 1407 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.1s IncrementalHoareTripleChecker+Time [2021-11-19 15:10:15,883 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9413 Valid, 10800 Invalid, 2653 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1245 Valid, 1407 Invalid, 1 Unknown, 0 Unchecked, 16.1s Time] [2021-11-19 15:10:15,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16777 states. [2021-11-19 15:10:16,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16777 to 16737. [2021-11-19 15:10:16,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16737 states, 11859 states have (on average 1.3161312083649548) internal successors, (15608), 11874 states have internal predecessors, (15608), 4261 states have call successors, (4261), 615 states have call predecessors, (4261), 614 states have return successors, (4257), 4247 states have call predecessors, (4257), 4257 states have call successors, (4257) [2021-11-19 15:10:16,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16737 states to 16737 states and 24126 transitions. [2021-11-19 15:10:16,934 INFO L78 Accepts]: Start accepts. Automaton has 16737 states and 24126 transitions. Word has length 810 [2021-11-19 15:10:16,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 15:10:16,938 INFO L470 AbstractCegarLoop]: Abstraction has 16737 states and 24126 transitions. [2021-11-19 15:10:16,939 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.5) internal successors, (126), 4 states have internal predecessors, (126), 4 states have call successors, (79), 3 states have call predecessors, (79), 3 states have return successors, (75), 4 states have call predecessors, (75), 4 states have call successors, (75) [2021-11-19 15:10:16,939 INFO L276 IsEmpty]: Start isEmpty. Operand 16737 states and 24126 transitions. [2021-11-19 15:10:16,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 820 [2021-11-19 15:10:16,962 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:10:16,963 INFO L514 BasicCegarLoop]: trace histogram [71, 71, 70, 70, 70, 70, 70, 70, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 15:10:17,058 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a9c971d-468b-4e25-8254-ce45e49ccf23/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-19 15:10:17,181 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a9c971d-468b-4e25-8254-ce45e49ccf23/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 15:10:17,181 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_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-19 15:10:17,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:10:17,182 INFO L85 PathProgramCache]: Analyzing trace with hash 1927097592, now seen corresponding path program 1 times [2021-11-19 15:10:17,187 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 15:10:17,187 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [601252116] [2021-11-19 15:10:17,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:10:17,187 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 15:10:17,187 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a9c971d-468b-4e25-8254-ce45e49ccf23/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 15:10:17,194 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a9c971d-468b-4e25-8254-ce45e49ccf23/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 15:10:17,196 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a9c971d-468b-4e25-8254-ce45e49ccf23/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-19 15:10:20,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:10:20,507 INFO L263 TraceCheckSpWp]: Trace formula consists of 4083 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 15:10:20,529 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 15:10:22,072 INFO L134 CoverageAnalysis]: Checked inductivity of 21945 backedges. 210 proven. 0 refuted. 0 times theorem prover too weak. 21735 trivial. 0 not checked. [2021-11-19 15:10:22,072 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 15:10:24,015 INFO L134 CoverageAnalysis]: Checked inductivity of 21945 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21945 trivial. 0 not checked. [2021-11-19 15:10:24,016 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 15:10:24,016 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [601252116] [2021-11-19 15:10:24,016 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [601252116] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 15:10:24,016 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 15:10:24,017 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-19 15:10:24,017 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1338467754] [2021-11-19 15:10:24,017 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 15:10:24,018 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 15:10:24,019 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 15:10:24,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 15:10:24,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 15:10:24,019 INFO L87 Difference]: Start difference. First operand 16737 states and 24126 transitions. Second operand has 4 states, 4 states have (on average 33.5) internal successors, (134), 4 states have internal predecessors, (134), 4 states have call successors, (80), 3 states have call predecessors, (80), 3 states have return successors, (75), 4 states have call predecessors, (75), 4 states have call successors, (75) [2021-11-19 15:10:26,565 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.54s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 15:10:38,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:10:38,857 INFO L93 Difference]: Finished difference Result 63300 states and 91397 transitions. [2021-11-19 15:10:38,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 15:10:38,859 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 33.5) internal successors, (134), 4 states have internal predecessors, (134), 4 states have call successors, (80), 3 states have call predecessors, (80), 3 states have return successors, (75), 4 states have call predecessors, (75), 4 states have call successors, (75) Word has length 819 [2021-11-19 15:10:38,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:10:39,138 INFO L225 Difference]: With dead ends: 63300 [2021-11-19 15:10:39,138 INFO L226 Difference]: Without dead ends: 46708 [2021-11-19 15:10:39,258 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1636 GetRequests, 1634 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 15:10:39,261 INFO L933 BasicCegarLoop]: 5068 mSDtfsCounter, 6921 mSDsluCounter, 6115 mSDsCounter, 0 mSdLazyCounter, 1534 mSolverCounterSat, 64 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6921 SdHoareTripleChecker+Valid, 11183 SdHoareTripleChecker+Invalid, 1599 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 1534 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.4s IncrementalHoareTripleChecker+Time [2021-11-19 15:10:39,263 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6921 Valid, 11183 Invalid, 1599 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 1534 Invalid, 1 Unknown, 0 Unchecked, 13.4s Time] [2021-11-19 15:10:39,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46708 states. [2021-11-19 15:10:42,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46708 to 46644. [2021-11-19 15:10:42,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46644 states, 32807 states have (on average 1.314353644039382) internal successors, (43120), 32876 states have internal predecessors, (43120), 12047 states have call successors, (12047), 1788 states have call predecessors, (12047), 1787 states have return successors, (12043), 11979 states have call predecessors, (12043), 12043 states have call successors, (12043) [2021-11-19 15:10:42,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46644 states to 46644 states and 67210 transitions. [2021-11-19 15:10:42,461 INFO L78 Accepts]: Start accepts. Automaton has 46644 states and 67210 transitions. Word has length 819 [2021-11-19 15:10:42,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 15:10:42,463 INFO L470 AbstractCegarLoop]: Abstraction has 46644 states and 67210 transitions. [2021-11-19 15:10:42,464 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 33.5) internal successors, (134), 4 states have internal predecessors, (134), 4 states have call successors, (80), 3 states have call predecessors, (80), 3 states have return successors, (75), 4 states have call predecessors, (75), 4 states have call successors, (75) [2021-11-19 15:10:42,464 INFO L276 IsEmpty]: Start isEmpty. Operand 46644 states and 67210 transitions. [2021-11-19 15:10:42,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 852 [2021-11-19 15:10:42,486 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:10:42,487 INFO L514 BasicCegarLoop]: trace histogram [71, 71, 70, 70, 70, 70, 70, 70, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 15:10:42,583 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a9c971d-468b-4e25-8254-ce45e49ccf23/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (4)] Ended with exit code 0 [2021-11-19 15:10:42,701 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a9c971d-468b-4e25-8254-ce45e49ccf23/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 15:10:42,702 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_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-19 15:10:42,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:10:42,703 INFO L85 PathProgramCache]: Analyzing trace with hash 1334894293, now seen corresponding path program 1 times [2021-11-19 15:10:42,707 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 15:10:42,707 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1044031037] [2021-11-19 15:10:42,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:10:42,707 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 15:10:42,708 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a9c971d-468b-4e25-8254-ce45e49ccf23/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 15:10:42,713 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a9c971d-468b-4e25-8254-ce45e49ccf23/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 15:10:42,721 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a9c971d-468b-4e25-8254-ce45e49ccf23/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-19 15:10:45,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:10:45,769 INFO L263 TraceCheckSpWp]: Trace formula consists of 4177 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 15:10:45,784 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 15:10:47,574 INFO L134 CoverageAnalysis]: Checked inductivity of 21980 backedges. 210 proven. 0 refuted. 0 times theorem prover too weak. 21770 trivial. 0 not checked. [2021-11-19 15:10:47,574 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 15:10:49,762 INFO L134 CoverageAnalysis]: Checked inductivity of 21980 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21980 trivial. 0 not checked. [2021-11-19 15:10:49,762 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 15:10:49,762 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1044031037] [2021-11-19 15:10:49,763 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1044031037] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 15:10:49,763 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 15:10:49,764 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-19 15:10:49,764 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [247088149] [2021-11-19 15:10:49,764 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 15:10:49,766 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-19 15:10:49,766 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 15:10:49,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-19 15:10:49,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 15:10:49,767 INFO L87 Difference]: Start difference. First operand 46644 states and 67210 transitions. Second operand has 3 states, 3 states have (on average 43.0) internal successors, (129), 3 states have internal predecessors, (129), 3 states have call successors, (87), 3 states have call predecessors, (87), 3 states have return successors, (83), 3 states have call predecessors, (83), 3 states have call successors, (83) [2021-11-19 15:10:52,284 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.51s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 15:10:55,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:10:55,333 INFO L93 Difference]: Finished difference Result 131773 states and 189720 transitions. [2021-11-19 15:10:55,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 15:10:55,334 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.0) internal successors, (129), 3 states have internal predecessors, (129), 3 states have call successors, (87), 3 states have call predecessors, (87), 3 states have return successors, (83), 3 states have call predecessors, (83), 3 states have call successors, (83) Word has length 851 [2021-11-19 15:10:55,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:10:56,055 INFO L225 Difference]: With dead ends: 131773 [2021-11-19 15:10:56,058 INFO L226 Difference]: Without dead ends: 85274 [2021-11-19 15:10:56,239 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1700 GetRequests, 1699 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 15:10:56,241 INFO L933 BasicCegarLoop]: 4341 mSDtfsCounter, 3388 mSDsluCounter, 3692 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 13 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3388 SdHoareTripleChecker+Valid, 8033 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2021-11-19 15:10:56,243 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3388 Valid, 8033 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 52 Invalid, 1 Unknown, 0 Unchecked, 2.9s Time] [2021-11-19 15:10:56,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85274 states. [2021-11-19 15:11:01,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85274 to 85184. [2021-11-19 15:11:01,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85184 states, 60075 states have (on average 1.3131252600915522) internal successors, (78886), 60225 states have internal predecessors, (78886), 21771 states have call successors, (21771), 3336 states have call predecessors, (21771), 3335 states have return successors, (21767), 21622 states have call predecessors, (21767), 21767 states have call successors, (21767) [2021-11-19 15:11:02,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85184 states to 85184 states and 122424 transitions. [2021-11-19 15:11:02,130 INFO L78 Accepts]: Start accepts. Automaton has 85184 states and 122424 transitions. Word has length 851 [2021-11-19 15:11:02,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 15:11:02,133 INFO L470 AbstractCegarLoop]: Abstraction has 85184 states and 122424 transitions. [2021-11-19 15:11:02,133 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.0) internal successors, (129), 3 states have internal predecessors, (129), 3 states have call successors, (87), 3 states have call predecessors, (87), 3 states have return successors, (83), 3 states have call predecessors, (83), 3 states have call successors, (83) [2021-11-19 15:11:02,133 INFO L276 IsEmpty]: Start isEmpty. Operand 85184 states and 122424 transitions. [2021-11-19 15:11:02,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 850 [2021-11-19 15:11:02,160 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:11:02,161 INFO L514 BasicCegarLoop]: trace histogram [71, 71, 70, 70, 70, 70, 70, 70, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 15:11:02,264 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a9c971d-468b-4e25-8254-ce45e49ccf23/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-19 15:11:02,382 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a9c971d-468b-4e25-8254-ce45e49ccf23/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 15:11:02,383 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_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-19 15:11:02,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:11:02,384 INFO L85 PathProgramCache]: Analyzing trace with hash -856071577, now seen corresponding path program 1 times [2021-11-19 15:11:02,388 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 15:11:02,389 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2075529819] [2021-11-19 15:11:02,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:11:02,389 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 15:11:02,390 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a9c971d-468b-4e25-8254-ce45e49ccf23/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 15:11:02,391 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a9c971d-468b-4e25-8254-ce45e49ccf23/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 15:11:02,430 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a9c971d-468b-4e25-8254-ce45e49ccf23/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-19 15:11:05,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:11:05,717 INFO L263 TraceCheckSpWp]: Trace formula consists of 4154 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 15:11:05,739 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 15:11:07,607 INFO L134 CoverageAnalysis]: Checked inductivity of 21980 backedges. 210 proven. 0 refuted. 0 times theorem prover too weak. 21770 trivial. 0 not checked. [2021-11-19 15:11:07,607 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 15:11:09,523 INFO L134 CoverageAnalysis]: Checked inductivity of 21980 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21980 trivial. 0 not checked. [2021-11-19 15:11:09,523 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 15:11:09,523 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2075529819] [2021-11-19 15:11:09,524 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2075529819] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 15:11:09,524 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 15:11:09,524 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-19 15:11:09,524 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [812751104] [2021-11-19 15:11:09,524 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 15:11:09,526 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-19 15:11:09,526 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 15:11:09,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-19 15:11:09,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 15:11:09,527 INFO L87 Difference]: Start difference. First operand 85184 states and 122424 transitions. Second operand has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 3 states have call successors, (87), 3 states have call predecessors, (87), 3 states have return successors, (83), 3 states have call predecessors, (83), 3 states have call successors, (83) [2021-11-19 15:11:12,077 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.55s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 15:11:17,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:11:17,656 INFO L93 Difference]: Finished difference Result 246352 states and 353796 transitions. [2021-11-19 15:11:17,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 15:11:17,657 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 3 states have call successors, (87), 3 states have call predecessors, (87), 3 states have return successors, (83), 3 states have call predecessors, (83), 3 states have call successors, (83) Word has length 849 [2021-11-19 15:11:17,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:11:19,090 INFO L225 Difference]: With dead ends: 246352 [2021-11-19 15:11:19,091 INFO L226 Difference]: Without dead ends: 161313 [2021-11-19 15:11:19,489 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1696 GetRequests, 1695 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 15:11:19,490 INFO L933 BasicCegarLoop]: 4427 mSDtfsCounter, 3388 mSDsluCounter, 3690 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 13 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3388 SdHoareTripleChecker+Valid, 8117 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2021-11-19 15:11:19,490 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3388 Valid, 8117 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 52 Invalid, 1 Unknown, 0 Unchecked, 2.9s Time] [2021-11-19 15:11:19,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161313 states. [2021-11-19 15:11:27,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161313 to 161259. [2021-11-19 15:11:28,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 161259 states, 114026 states have (on average 1.3115254415659587) internal successors, (149548), 114338 states have internal predecessors, (149548), 40799 states have call successors, (40799), 6432 states have call predecessors, (40799), 6431 states have return successors, (40795), 40488 states have call predecessors, (40795), 40795 states have call successors, (40795) [2021-11-19 15:11:29,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161259 states to 161259 states and 231142 transitions. [2021-11-19 15:11:29,666 INFO L78 Accepts]: Start accepts. Automaton has 161259 states and 231142 transitions. Word has length 849 [2021-11-19 15:11:29,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 15:11:29,667 INFO L470 AbstractCegarLoop]: Abstraction has 161259 states and 231142 transitions. [2021-11-19 15:11:29,668 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 3 states have call successors, (87), 3 states have call predecessors, (87), 3 states have return successors, (83), 3 states have call predecessors, (83), 3 states have call successors, (83) [2021-11-19 15:11:29,668 INFO L276 IsEmpty]: Start isEmpty. Operand 161259 states and 231142 transitions. [2021-11-19 15:11:29,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 853 [2021-11-19 15:11:29,689 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:11:29,689 INFO L514 BasicCegarLoop]: trace histogram [71, 71, 70, 70, 70, 70, 70, 70, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 15:11:29,778 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a9c971d-468b-4e25-8254-ce45e49ccf23/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (6)] Ended with exit code 0 [2021-11-19 15:11:29,913 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a9c971d-468b-4e25-8254-ce45e49ccf23/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 15:11:29,914 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_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-19 15:11:29,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:11:29,914 INFO L85 PathProgramCache]: Analyzing trace with hash -1801062340, now seen corresponding path program 1 times [2021-11-19 15:11:29,918 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 15:11:29,918 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1910654083] [2021-11-19 15:11:29,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:11:29,919 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 15:11:29,919 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a9c971d-468b-4e25-8254-ce45e49ccf23/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 15:11:29,922 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a9c971d-468b-4e25-8254-ce45e49ccf23/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 15:11:29,963 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a9c971d-468b-4e25-8254-ce45e49ccf23/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-19 15:11:32,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:11:33,153 INFO L263 TraceCheckSpWp]: Trace formula consists of 4178 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 15:11:33,170 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 15:11:34,945 INFO L134 CoverageAnalysis]: Checked inductivity of 21980 backedges. 210 proven. 0 refuted. 0 times theorem prover too weak. 21770 trivial. 0 not checked. [2021-11-19 15:11:34,945 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 15:11:36,686 INFO L134 CoverageAnalysis]: Checked inductivity of 21980 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21980 trivial. 0 not checked. [2021-11-19 15:11:36,686 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 15:11:36,687 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1910654083] [2021-11-19 15:11:36,687 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1910654083] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 15:11:36,687 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 15:11:36,688 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-19 15:11:36,688 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1863169771] [2021-11-19 15:11:36,688 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 15:11:36,689 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-19 15:11:36,690 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 15:11:36,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-19 15:11:36,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 15:11:36,690 INFO L87 Difference]: Start difference. First operand 161259 states and 231142 transitions. Second operand has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 3 states have call successors, (87), 3 states have call predecessors, (87), 3 states have return successors, (83), 3 states have call predecessors, (83), 3 states have call successors, (83) [2021-11-19 15:11:39,188 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.50s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers []