./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-usb-dvb-usb-dvb-usb-m920x.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9ad7fb26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab664862-3cc4-4ed0-b428-e7feb9521b91/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab664862-3cc4-4ed0-b428-e7feb9521b91/bin/utaipan-aC7eJsxGYH/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab664862-3cc4-4ed0-b428-e7feb9521b91/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab664862-3cc4-4ed0-b428-e7feb9521b91/bin/utaipan-aC7eJsxGYH/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-usb-dvb-usb-dvb-usb-m920x.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab664862-3cc4-4ed0-b428-e7feb9521b91/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab664862-3cc4-4ed0-b428-e7feb9521b91/bin/utaipan-aC7eJsxGYH --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 59473e3c2ae80c2e7996950da3475e9070fa07527cbe1064da7145ffd0ce24e6 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-03 05:23:43,939 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 05:23:43,941 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 05:23:43,971 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 05:23:43,972 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 05:23:43,973 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 05:23:43,975 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 05:23:43,977 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 05:23:43,979 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 05:23:43,981 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 05:23:43,982 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 05:23:43,983 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 05:23:43,984 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 05:23:43,985 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 05:23:43,986 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 05:23:43,988 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 05:23:43,989 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 05:23:43,990 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 05:23:43,992 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 05:23:43,994 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 05:23:43,996 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 05:23:43,998 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 05:23:43,999 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 05:23:44,000 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 05:23:44,004 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 05:23:44,004 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 05:23:44,005 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 05:23:44,006 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 05:23:44,007 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 05:23:44,008 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 05:23:44,008 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 05:23:44,009 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 05:23:44,010 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 05:23:44,011 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 05:23:44,012 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 05:23:44,013 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 05:23:44,014 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 05:23:44,014 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 05:23:44,014 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 05:23:44,015 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 05:23:44,016 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 05:23:44,017 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab664862-3cc4-4ed0-b428-e7feb9521b91/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-03 05:23:44,042 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 05:23:44,042 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 05:23:44,043 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 05:23:44,043 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 05:23:44,044 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 05:23:44,044 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 05:23:44,044 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-03 05:23:44,044 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 05:23:44,045 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 05:23:44,045 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-03 05:23:44,045 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-03 05:23:44,045 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 05:23:44,046 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-03 05:23:44,046 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-03 05:23:44,046 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-03 05:23:44,047 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 05:23:44,047 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-03 05:23:44,047 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 05:23:44,048 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 05:23:44,048 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 05:23:44,048 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 05:23:44,049 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 05:23:44,049 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 05:23:44,049 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 05:23:44,049 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 05:23:44,050 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 05:23:44,050 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 05:23:44,050 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 05:23:44,051 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 05:23:44,051 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 05:23:44,051 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 05:23:44,051 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-03 05:23:44,051 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-03 05:23:44,052 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 05:23:44,052 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 05:23:44,052 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 05:23:44,053 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_ab664862-3cc4-4ed0-b428-e7feb9521b91/bin/utaipan-aC7eJsxGYH/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab664862-3cc4-4ed0-b428-e7feb9521b91/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 59473e3c2ae80c2e7996950da3475e9070fa07527cbe1064da7145ffd0ce24e6 [2021-11-03 05:23:44,373 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 05:23:44,410 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 05:23:44,413 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 05:23:44,415 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 05:23:44,415 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 05:23:44,416 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab664862-3cc4-4ed0-b428-e7feb9521b91/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-usb-dvb-usb-dvb-usb-m920x.cil.i [2021-11-03 05:23:44,490 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab664862-3cc4-4ed0-b428-e7feb9521b91/bin/utaipan-aC7eJsxGYH/data/43422e86d/982079a9ac9a47c6adeafa8ac6be518e/FLAGd6ad093a1 [2021-11-03 05:23:45,363 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 05:23:45,364 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab664862-3cc4-4ed0-b428-e7feb9521b91/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-usb-dvb-usb-dvb-usb-m920x.cil.i [2021-11-03 05:23:45,417 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab664862-3cc4-4ed0-b428-e7feb9521b91/bin/utaipan-aC7eJsxGYH/data/43422e86d/982079a9ac9a47c6adeafa8ac6be518e/FLAGd6ad093a1 [2021-11-03 05:23:45,852 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab664862-3cc4-4ed0-b428-e7feb9521b91/bin/utaipan-aC7eJsxGYH/data/43422e86d/982079a9ac9a47c6adeafa8ac6be518e [2021-11-03 05:23:45,856 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 05:23:45,858 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 05:23:45,859 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 05:23:45,859 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 05:23:45,862 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 05:23:45,863 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 05:23:45" (1/1) ... [2021-11-03 05:23:45,864 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3ccec091 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:23:45, skipping insertion in model container [2021-11-03 05:23:45,864 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 05:23:45" (1/1) ... [2021-11-03 05:23:45,871 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 05:23:46,027 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 05:23:46,917 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 05:23:47,078 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 05:23:47,130 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 05:23:47,167 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 05:23:47,184 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 05:23:47,191 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 05:23:47,263 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 05:23:47,290 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 05:23:47,307 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 05:23:47,897 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 05:23:47,898 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 05:23:47,899 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 05:23:47,902 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 05:23:47,903 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 05:23:47,903 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 05:23:47,906 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 05:23:47,907 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 05:23:47,907 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 05:23:47,911 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 05:23:47,913 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 05:23:47,913 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 05:23:47,928 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 05:23:47,929 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 05:23:47,930 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 05:23:47,939 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 05:23:47,940 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 05:23:47,940 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 05:23:47,961 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 05:23:47,972 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 05:23:48,229 WARN L228 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_ab664862-3cc4-4ed0-b428-e7feb9521b91/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-usb-dvb-usb-dvb-usb-m920x.cil.i[358872,358885] [2021-11-03 05:23:48,232 WARN L228 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_ab664862-3cc4-4ed0-b428-e7feb9521b91/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-usb-dvb-usb-dvb-usb-m920x.cil.i[359038,359051] [2021-11-03 05:23:48,232 WARN L228 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_ab664862-3cc4-4ed0-b428-e7feb9521b91/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-usb-dvb-usb-dvb-usb-m920x.cil.i[359202,359215] [2021-11-03 05:23:48,233 WARN L228 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_ab664862-3cc4-4ed0-b428-e7feb9521b91/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-usb-dvb-usb-dvb-usb-m920x.cil.i[359367,359380] [2021-11-03 05:23:48,236 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 05:23:48,308 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) [2021-11-03 05:23:48,309 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@7a9b19fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:23:48, skipping insertion in model container [2021-11-03 05:23:48,309 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-03 05:23:48,310 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-03 05:23:48,312 INFO L168 Benchmark]: Toolchain (without parser) took 2452.87 ms. Allocated memory was 109.1 MB in the beginning and 142.6 MB in the end (delta: 33.6 MB). Free memory was 64.7 MB in the beginning and 59.4 MB in the end (delta: 5.3 MB). Peak memory consumption was 40.1 MB. Max. memory is 16.1 GB. [2021-11-03 05:23:48,313 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 109.1 MB. Free memory was 65.4 MB in the beginning and 65.3 MB in the end (delta: 44.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-03 05:23:48,314 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2450.44 ms. Allocated memory was 109.1 MB in the beginning and 142.6 MB in the end (delta: 33.6 MB). Free memory was 64.5 MB in the beginning and 59.4 MB in the end (delta: 5.1 MB). Peak memory consumption was 40.1 MB. Max. memory is 16.1 GB. [2021-11-03 05:23:48,315 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 109.1 MB. Free memory was 65.4 MB in the beginning and 65.3 MB in the end (delta: 44.3 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 2450.44 ms. Allocated memory was 109.1 MB in the beginning and 142.6 MB in the end (delta: 33.6 MB). Free memory was 64.5 MB in the beginning and 59.4 MB in the end (delta: 5.1 MB). Peak memory consumption was 40.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 6727]: 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_ab664862-3cc4-4ed0-b428-e7feb9521b91/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab664862-3cc4-4ed0-b428-e7feb9521b91/bin/utaipan-aC7eJsxGYH/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab664862-3cc4-4ed0-b428-e7feb9521b91/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab664862-3cc4-4ed0-b428-e7feb9521b91/bin/utaipan-aC7eJsxGYH/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-usb-dvb-usb-dvb-usb-m920x.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab664862-3cc4-4ed0-b428-e7feb9521b91/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab664862-3cc4-4ed0-b428-e7feb9521b91/bin/utaipan-aC7eJsxGYH --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 59473e3c2ae80c2e7996950da3475e9070fa07527cbe1064da7145ffd0ce24e6 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-03 05:23:50,437 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 05:23:50,439 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 05:23:50,504 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 05:23:50,505 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 05:23:50,509 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 05:23:50,511 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 05:23:50,515 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 05:23:50,519 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 05:23:50,526 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 05:23:50,528 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 05:23:50,530 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 05:23:50,530 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 05:23:50,533 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 05:23:50,536 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 05:23:50,540 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 05:23:50,542 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 05:23:50,543 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 05:23:50,545 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 05:23:50,553 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 05:23:50,555 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 05:23:50,556 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 05:23:50,560 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 05:23:50,561 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 05:23:50,571 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 05:23:50,572 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 05:23:50,572 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 05:23:50,574 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 05:23:50,575 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 05:23:50,576 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 05:23:50,577 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 05:23:50,578 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 05:23:50,580 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 05:23:50,581 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 05:23:50,582 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 05:23:50,583 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 05:23:50,584 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 05:23:50,584 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 05:23:50,584 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 05:23:50,586 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 05:23:50,587 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 05:23:50,593 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab664862-3cc4-4ed0-b428-e7feb9521b91/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-03 05:23:50,619 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 05:23:50,620 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 05:23:50,621 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 05:23:50,621 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 05:23:50,621 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 05:23:50,622 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 05:23:50,622 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 05:23:50,622 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 05:23:50,622 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 05:23:50,623 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 05:23:50,623 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 05:23:50,624 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 05:23:50,624 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 05:23:50,624 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 05:23:50,624 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 05:23:50,625 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-03 05:23:50,625 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-03 05:23:50,625 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 05:23:50,625 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 05:23:50,626 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 05:23:50,626 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 05:23:50,626 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-03 05:23:50,626 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 05:23:50,627 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 05:23:50,627 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 05:23:50,627 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 05:23:50,627 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 05:23:50,628 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-03 05:23:50,628 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-03 05:23:50,628 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 05:23:50,628 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 05:23:50,629 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 05:23:50,629 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_ab664862-3cc4-4ed0-b428-e7feb9521b91/bin/utaipan-aC7eJsxGYH/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab664862-3cc4-4ed0-b428-e7feb9521b91/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 59473e3c2ae80c2e7996950da3475e9070fa07527cbe1064da7145ffd0ce24e6 [2021-11-03 05:23:50,994 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 05:23:51,014 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 05:23:51,017 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 05:23:51,018 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 05:23:51,019 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 05:23:51,020 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab664862-3cc4-4ed0-b428-e7feb9521b91/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-usb-dvb-usb-dvb-usb-m920x.cil.i [2021-11-03 05:23:51,086 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab664862-3cc4-4ed0-b428-e7feb9521b91/bin/utaipan-aC7eJsxGYH/data/e010cac6b/2fd2776878e244e4be4519f85031ccef/FLAG587226462 [2021-11-03 05:23:52,172 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 05:23:52,173 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab664862-3cc4-4ed0-b428-e7feb9521b91/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-usb-dvb-usb-dvb-usb-m920x.cil.i [2021-11-03 05:23:52,227 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab664862-3cc4-4ed0-b428-e7feb9521b91/bin/utaipan-aC7eJsxGYH/data/e010cac6b/2fd2776878e244e4be4519f85031ccef/FLAG587226462 [2021-11-03 05:23:52,444 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab664862-3cc4-4ed0-b428-e7feb9521b91/bin/utaipan-aC7eJsxGYH/data/e010cac6b/2fd2776878e244e4be4519f85031ccef [2021-11-03 05:23:52,447 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 05:23:52,448 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 05:23:52,450 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 05:23:52,450 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 05:23:52,454 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 05:23:52,455 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 05:23:52" (1/1) ... [2021-11-03 05:23:52,457 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@133e84c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:23:52, skipping insertion in model container [2021-11-03 05:23:52,457 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 05:23:52" (1/1) ... [2021-11-03 05:23:52,465 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 05:23:52,631 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 05:23:54,747 WARN L228 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_ab664862-3cc4-4ed0-b428-e7feb9521b91/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-usb-dvb-usb-dvb-usb-m920x.cil.i[358872,358885] [2021-11-03 05:23:54,750 WARN L228 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_ab664862-3cc4-4ed0-b428-e7feb9521b91/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-usb-dvb-usb-dvb-usb-m920x.cil.i[359038,359051] [2021-11-03 05:23:54,751 WARN L228 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_ab664862-3cc4-4ed0-b428-e7feb9521b91/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-usb-dvb-usb-dvb-usb-m920x.cil.i[359202,359215] [2021-11-03 05:23:54,752 WARN L228 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_ab664862-3cc4-4ed0-b428-e7feb9521b91/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-usb-dvb-usb-dvb-usb-m920x.cil.i[359367,359380] [2021-11-03 05:23:54,757 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 05:23:54,899 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-03 05:23:54,980 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 05:23:55,387 WARN L228 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_ab664862-3cc4-4ed0-b428-e7feb9521b91/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-usb-dvb-usb-dvb-usb-m920x.cil.i[358872,358885] [2021-11-03 05:23:55,387 WARN L228 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_ab664862-3cc4-4ed0-b428-e7feb9521b91/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-usb-dvb-usb-dvb-usb-m920x.cil.i[359038,359051] [2021-11-03 05:23:55,388 WARN L228 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_ab664862-3cc4-4ed0-b428-e7feb9521b91/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-usb-dvb-usb-dvb-usb-m920x.cil.i[359202,359215] [2021-11-03 05:23:55,388 WARN L228 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_ab664862-3cc4-4ed0-b428-e7feb9521b91/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-usb-dvb-usb-dvb-usb-m920x.cil.i[359367,359380] [2021-11-03 05:23:55,392 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 05:23:55,498 INFO L203 MainTranslator]: Completed pre-run [2021-11-03 05:23:55,890 WARN L228 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_ab664862-3cc4-4ed0-b428-e7feb9521b91/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-usb-dvb-usb-dvb-usb-m920x.cil.i[358872,358885] [2021-11-03 05:23:55,891 WARN L228 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_ab664862-3cc4-4ed0-b428-e7feb9521b91/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-usb-dvb-usb-dvb-usb-m920x.cil.i[359038,359051] [2021-11-03 05:23:55,891 WARN L228 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_ab664862-3cc4-4ed0-b428-e7feb9521b91/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-usb-dvb-usb-dvb-usb-m920x.cil.i[359202,359215] [2021-11-03 05:23:55,891 WARN L228 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_ab664862-3cc4-4ed0-b428-e7feb9521b91/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-usb-dvb-usb-dvb-usb-m920x.cil.i[359367,359380] [2021-11-03 05:23:55,894 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 05:23:56,285 INFO L208 MainTranslator]: Completed translation [2021-11-03 05:23:56,285 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:23:56 WrapperNode [2021-11-03 05:23:56,285 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-03 05:23:56,290 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-03 05:23:56,290 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-03 05:23:56,290 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-03 05:23:56,297 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:23:56" (1/1) ... [2021-11-03 05:23:56,416 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:23:56" (1/1) ... [2021-11-03 05:23:57,116 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-03 05:23:57,117 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-03 05:23:57,117 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-03 05:23:57,117 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-03 05:23:57,126 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:23:56" (1/1) ... [2021-11-03 05:23:57,126 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:23:56" (1/1) ... [2021-11-03 05:23:57,407 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:23:56" (1/1) ... [2021-11-03 05:23:57,407 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:23:56" (1/1) ... [2021-11-03 05:23:57,936 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:23:56" (1/1) ... [2021-11-03 05:23:58,097 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:23:56" (1/1) ... [2021-11-03 05:23:58,148 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:23:56" (1/1) ... [2021-11-03 05:23:58,356 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-03 05:23:58,357 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-03 05:23:58,357 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-03 05:23:58,358 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-03 05:23:58,359 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:23:56" (1/1) ... [2021-11-03 05:23:58,365 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 05:23:58,376 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab664862-3cc4-4ed0-b428-e7feb9521b91/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 05:23:58,426 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab664862-3cc4-4ed0-b428-e7feb9521b91/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-03 05:23:58,493 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab664862-3cc4-4ed0-b428-e7feb9521b91/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-03 05:23:58,561 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-03 05:23:58,561 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-03 05:23:58,561 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-03 05:23:58,561 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-03 05:23:58,562 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2021-11-03 05:23:58,562 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-03 05:23:58,562 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-03 05:23:58,562 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-03 05:23:58,562 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-03 05:23:58,562 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2021-11-03 05:23:58,562 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-03 05:23:58,563 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-03 05:23:58,563 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-03 05:23:58,563 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2021-11-03 05:23:58,563 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-03 05:23:58,563 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-03 05:23:58,564 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-03 05:23:58,564 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-11-03 05:23:58,564 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2021-11-03 05:23:58,565 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2021-11-03 05:23:58,565 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2021-11-03 05:23:58,565 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-03 05:23:58,567 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-03 05:23:58,567 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2021-11-03 05:23:58,567 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2021-11-03 05:23:58,567 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-11-03 05:23:58,567 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2021-11-03 05:23:58,568 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-03 05:23:58,568 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-03 05:37:15,197 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break: ldv_switch_1_#res := 0bv32; [2021-11-03 05:37:15,197 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#3: ldv_switch_0_#res := 0bv32; [2021-11-03 05:37:15,198 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#4: ldv_switch_0_#res := 0bv32; [2021-11-03 05:37:15,198 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#5: ldv_switch_0_#res := 0bv32; [2021-11-03 05:37:15,198 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#6: ldv_switch_0_#res := 0bv32; [2021-11-03 05:37:15,198 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#2: ldv_switch_0_#res := 0bv32; [2021-11-03 05:37:15,198 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#7: ldv_switch_0_#res := 0bv32; [2021-11-03 05:37:15,199 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#8: ldv_switch_0_#res := 0bv32; [2021-11-03 05:37:15,199 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#9: ldv_switch_0_#res := 0bv32; [2021-11-03 05:37:15,199 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-03 05:37:15,200 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#10: ldv_switch_0_#res := 0bv32; [2021-11-03 05:37:15,201 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break: ldv_switch_0_#res := 0bv32; [2021-11-03 05:37:15,261 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-03 05:37:15,261 INFO L299 CfgBuilder]: Removed 5227 assume(true) statements. [2021-11-03 05:37:15,275 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 05:37:15 BoogieIcfgContainer [2021-11-03 05:37:15,276 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-03 05:37:15,279 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-03 05:37:15,280 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-03 05:37:15,283 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-03 05:37:15,284 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 05:23:52" (1/3) ... [2021-11-03 05:37:15,284 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@809ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 05:37:15, skipping insertion in model container [2021-11-03 05:37:15,284 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:23:56" (2/3) ... [2021-11-03 05:37:15,285 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@809ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 05:37:15, skipping insertion in model container [2021-11-03 05:37:15,285 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 05:37:15" (3/3) ... [2021-11-03 05:37:15,288 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-usb-dvb-usb-dvb-usb-m920x.cil.i [2021-11-03 05:37:15,294 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-03 05:37:15,294 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 86 error locations. [2021-11-03 05:37:15,371 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-03 05:37:15,379 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 [2021-11-03 05:37:15,386 INFO L340 AbstractCegarLoop]: Starting to check reachability of 86 error locations. [2021-11-03 05:37:15,496 INFO L276 IsEmpty]: Start isEmpty. Operand has 6581 states, 6495 states have (on average 1.4030792917628945) internal successors, (9113), 6580 states have internal predecessors, (9113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:37:15,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2021-11-03 05:37:15,525 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:37:15,526 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:37:15,527 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 83 more)] === [2021-11-03 05:37:15,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:37:15,532 INFO L85 PathProgramCache]: Analyzing trace with hash -289390519, now seen corresponding path program 1 times [2021-11-03 05:37:15,559 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:37:15,559 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [381590568] [2021-11-03 05:37:15,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:37:15,560 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:37:15,561 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab664862-3cc4-4ed0-b428-e7feb9521b91/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:37:15,565 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab664862-3cc4-4ed0-b428-e7feb9521b91/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:37:15,581 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab664862-3cc4-4ed0-b428-e7feb9521b91/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-03 05:37:23,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:37:23,607 INFO L263 TraceCheckSpWp]: Trace formula consists of 2956 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-03 05:37:23,622 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:37:24,357 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:37:24,357 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:37:24,931 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:37:24,932 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:37:24,932 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [381590568] [2021-11-03 05:37:24,933 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [381590568] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:37:24,933 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:37:24,933 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-03 05:37:24,935 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2012139713] [2021-11-03 05:37:24,940 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 05:37:24,940 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:37:24,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 05:37:24,953 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-03 05:37:24,971 INFO L87 Difference]: Start difference. First operand has 6581 states, 6495 states have (on average 1.4030792917628945) internal successors, (9113), 6580 states have internal predecessors, (9113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 46.5) internal successors, (186), 4 states have internal predecessors, (186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:37:29,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:37:29,193 INFO L93 Difference]: Finished difference Result 24418 states and 33992 transitions. [2021-11-03 05:37:29,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 05:37:29,195 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 46.5) internal successors, (186), 4 states have internal predecessors, (186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 180 [2021-11-03 05:37:29,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:37:29,338 INFO L225 Difference]: With dead ends: 24418 [2021-11-03 05:37:29,338 INFO L226 Difference]: Without dead ends: 17472 [2021-11-03 05:37:29,369 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 358 GetRequests, 356 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-03 05:37:29,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17472 states. [2021-11-03 05:37:30,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17472 to 17176. [2021-11-03 05:37:30,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17176 states, 17090 states have (on average 1.3656524283206553) internal successors, (23339), 17175 states have internal predecessors, (23339), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:37:30,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17176 states to 17176 states and 23339 transitions. [2021-11-03 05:37:30,142 INFO L78 Accepts]: Start accepts. Automaton has 17176 states and 23339 transitions. Word has length 180 [2021-11-03 05:37:30,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:37:30,146 INFO L470 AbstractCegarLoop]: Abstraction has 17176 states and 23339 transitions. [2021-11-03 05:37:30,147 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 46.5) internal successors, (186), 4 states have internal predecessors, (186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:37:30,150 INFO L276 IsEmpty]: Start isEmpty. Operand 17176 states and 23339 transitions. [2021-11-03 05:37:30,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2021-11-03 05:37:30,156 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:37:30,157 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:37:30,309 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab664862-3cc4-4ed0-b428-e7feb9521b91/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-03 05:37:30,377 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab664862-3cc4-4ed0-b428-e7feb9521b91/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:37:30,377 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 83 more)] === [2021-11-03 05:37:30,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:37:30,378 INFO L85 PathProgramCache]: Analyzing trace with hash -1153823296, now seen corresponding path program 1 times [2021-11-03 05:37:30,384 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:37:30,384 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1041742803] [2021-11-03 05:37:30,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:37:30,385 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:37:30,385 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab664862-3cc4-4ed0-b428-e7feb9521b91/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:37:30,386 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab664862-3cc4-4ed0-b428-e7feb9521b91/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:37:30,402 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab664862-3cc4-4ed0-b428-e7feb9521b91/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-03 05:37:37,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:37:38,518 INFO L263 TraceCheckSpWp]: Trace formula consists of 3100 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-03 05:37:38,527 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:37:39,243 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:37:39,244 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:37:39,856 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:37:39,856 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:37:39,856 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1041742803] [2021-11-03 05:37:39,856 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1041742803] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:37:39,856 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:37:39,857 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-03 05:37:39,857 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [927917181] [2021-11-03 05:37:39,858 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 05:37:39,859 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:37:39,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 05:37:39,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-03 05:37:39,860 INFO L87 Difference]: Start difference. First operand 17176 states and 23339 transitions. Second operand has 4 states, 4 states have (on average 48.75) internal successors, (195), 4 states have internal predecessors, (195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:37:44,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:37:44,093 INFO L93 Difference]: Finished difference Result 43386 states and 58830 transitions. [2021-11-03 05:37:44,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 05:37:44,094 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 48.75) internal successors, (195), 4 states have internal predecessors, (195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 186 [2021-11-03 05:37:44,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:37:44,222 INFO L225 Difference]: With dead ends: 43386 [2021-11-03 05:37:44,223 INFO L226 Difference]: Without dead ends: 26646 [2021-11-03 05:37:44,256 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 370 GetRequests, 368 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-03 05:37:44,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26646 states. [2021-11-03 05:37:45,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26646 to 26322. [2021-11-03 05:37:45,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26322 states, 26236 states have (on average 1.3630507699344412) internal successors, (35761), 26321 states have internal predecessors, (35761), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:37:45,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26322 states to 26322 states and 35761 transitions. [2021-11-03 05:37:45,191 INFO L78 Accepts]: Start accepts. Automaton has 26322 states and 35761 transitions. Word has length 186 [2021-11-03 05:37:45,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:37:45,192 INFO L470 AbstractCegarLoop]: Abstraction has 26322 states and 35761 transitions. [2021-11-03 05:37:45,193 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 48.75) internal successors, (195), 4 states have internal predecessors, (195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:37:45,193 INFO L276 IsEmpty]: Start isEmpty. Operand 26322 states and 35761 transitions. [2021-11-03 05:37:45,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2021-11-03 05:37:45,199 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:37:45,199 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:37:45,340 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab664862-3cc4-4ed0-b428-e7feb9521b91/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-03 05:37:45,421 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab664862-3cc4-4ed0-b428-e7feb9521b91/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:37:45,421 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 83 more)] === [2021-11-03 05:37:45,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:37:45,422 INFO L85 PathProgramCache]: Analyzing trace with hash -1743281941, now seen corresponding path program 1 times [2021-11-03 05:37:45,428 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:37:45,428 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [675549192] [2021-11-03 05:37:45,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:37:45,428 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:37:45,428 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab664862-3cc4-4ed0-b428-e7feb9521b91/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:37:45,429 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab664862-3cc4-4ed0-b428-e7feb9521b91/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:37:45,455 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab664862-3cc4-4ed0-b428-e7feb9521b91/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process