./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atlx-atl2.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_f4704502-29ef-4307-b30e-33a568a0e943/bin/utaipan-UbGMyvGFUs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4704502-29ef-4307-b30e-33a568a0e943/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_f4704502-29ef-4307-b30e-33a568a0e943/bin/utaipan-UbGMyvGFUs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4704502-29ef-4307-b30e-33a568a0e943/bin/utaipan-UbGMyvGFUs/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atlx-atl2.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4704502-29ef-4307-b30e-33a568a0e943/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_f4704502-29ef-4307-b30e-33a568a0e943/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 a17c24f91a3bb3d64b949ed6598dfddc35ec4ff57290faa768ce9df2bba8e700 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 14:48:10,878 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 14:48:10,882 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 14:48:10,944 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 14:48:10,945 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 14:48:10,946 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 14:48:10,949 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 14:48:10,953 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 14:48:10,956 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 14:48:10,957 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 14:48:10,959 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 14:48:10,961 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 14:48:10,962 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 14:48:10,964 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 14:48:10,966 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 14:48:10,968 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 14:48:10,970 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 14:48:10,972 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 14:48:10,975 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 14:48:10,979 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 14:48:10,982 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 14:48:10,984 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 14:48:10,986 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 14:48:10,988 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 14:48:10,993 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 14:48:10,994 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 14:48:10,995 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 14:48:10,996 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 14:48:10,997 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 14:48:10,999 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 14:48:10,999 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 14:48:11,006 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 14:48:11,008 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 14:48:11,009 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 14:48:11,011 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 14:48:11,013 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 14:48:11,015 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 14:48:11,016 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 14:48:11,016 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 14:48:11,018 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 14:48:11,022 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 14:48:11,023 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4704502-29ef-4307-b30e-33a568a0e943/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-19 14:48:11,078 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 14:48:11,079 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 14:48:11,081 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 14:48:11,081 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 14:48:11,082 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-19 14:48:11,082 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-19 14:48:11,082 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-19 14:48:11,083 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-19 14:48:11,083 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-19 14:48:11,083 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-19 14:48:11,085 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-19 14:48:11,085 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-19 14:48:11,085 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-19 14:48:11,086 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-19 14:48:11,086 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-19 14:48:11,086 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-19 14:48:11,088 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 14:48:11,088 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-19 14:48:11,089 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 14:48:11,089 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-19 14:48:11,089 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 14:48:11,089 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-19 14:48:11,090 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-19 14:48:11,090 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 14:48:11,090 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 14:48:11,091 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-19 14:48:11,091 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 14:48:11,091 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 14:48:11,092 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 14:48:11,092 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 14:48:11,092 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 14:48:11,093 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-19 14:48:11,093 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-19 14:48:11,094 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-19 14:48:11,094 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-19 14:48:11,094 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 14:48:11,095 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-19 14:48:11,095 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_f4704502-29ef-4307-b30e-33a568a0e943/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4704502-29ef-4307-b30e-33a568a0e943/bin/utaipan-UbGMyvGFUs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a17c24f91a3bb3d64b949ed6598dfddc35ec4ff57290faa768ce9df2bba8e700 [2021-11-19 14:48:11,444 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 14:48:11,480 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 14:48:11,485 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 14:48:11,487 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 14:48:11,488 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 14:48:11,489 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4704502-29ef-4307-b30e-33a568a0e943/bin/utaipan-UbGMyvGFUs/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atlx-atl2.cil.i [2021-11-19 14:48:11,595 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4704502-29ef-4307-b30e-33a568a0e943/bin/utaipan-UbGMyvGFUs/data/b779fa626/89ab422f60004b2db65f0d1f8043bd85/FLAG0bed9c5dc [2021-11-19 14:48:12,861 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 14:48:12,863 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4704502-29ef-4307-b30e-33a568a0e943/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atlx-atl2.cil.i [2021-11-19 14:48:12,953 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4704502-29ef-4307-b30e-33a568a0e943/bin/utaipan-UbGMyvGFUs/data/b779fa626/89ab422f60004b2db65f0d1f8043bd85/FLAG0bed9c5dc [2021-11-19 14:48:13,070 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4704502-29ef-4307-b30e-33a568a0e943/bin/utaipan-UbGMyvGFUs/data/b779fa626/89ab422f60004b2db65f0d1f8043bd85 [2021-11-19 14:48:13,073 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 14:48:13,075 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 14:48:13,080 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 14:48:13,081 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 14:48:13,085 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 14:48:13,087 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:48:13" (1/1) ... [2021-11-19 14:48:13,090 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@76afc906 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:48:13, skipping insertion in model container [2021-11-19 14:48:13,091 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:48:13" (1/1) ... [2021-11-19 14:48:13,101 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 14:48:13,332 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 14:48:15,870 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 14:48:15,871 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 14:48:15,936 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 14:48:15,943 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 14:48:16,307 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 14:48:16,354 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 14:48:18,182 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_f4704502-29ef-4307-b30e-33a568a0e943/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atlx-atl2.cil.i[396127,396140] [2021-11-19 14:48:18,185 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_f4704502-29ef-4307-b30e-33a568a0e943/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atlx-atl2.cil.i[396296,396309] [2021-11-19 14:48:18,186 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_f4704502-29ef-4307-b30e-33a568a0e943/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atlx-atl2.cil.i[396463,396476] [2021-11-19 14:48:18,187 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_f4704502-29ef-4307-b30e-33a568a0e943/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atlx-atl2.cil.i[396631,396644] [2021-11-19 14:48:18,212 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 14:48:18,255 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 14:48:18,256 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@952bc6f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:48:18, skipping insertion in model container [2021-11-19 14:48:18,256 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 14:48:18,257 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-19 14:48:18,259 INFO L158 Benchmark]: Toolchain (without parser) took 5183.55ms. Allocated memory was 111.1MB in the beginning and 174.1MB in the end (delta: 62.9MB). Free memory was 82.1MB in the beginning and 103.8MB in the end (delta: -21.6MB). Peak memory consumption was 56.5MB. Max. memory is 16.1GB. [2021-11-19 14:48:18,260 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 92.3MB. Free memory was 64.9MB in the beginning and 64.8MB in the end (delta: 21.9kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 14:48:18,261 INFO L158 Benchmark]: CACSL2BoogieTranslator took 5176.87ms. Allocated memory was 111.1MB in the beginning and 174.1MB in the end (delta: 62.9MB). Free memory was 81.7MB in the beginning and 103.8MB in the end (delta: -22.1MB). Peak memory consumption was 56.5MB. Max. memory is 16.1GB. [2021-11-19 14:48:18,263 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 92.3MB. Free memory was 64.9MB in the beginning and 64.8MB in the end (delta: 21.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 5176.87ms. Allocated memory was 111.1MB in the beginning and 174.1MB in the end (delta: 62.9MB). Free memory was 81.7MB in the beginning and 103.8MB in the end (delta: -22.1MB). Peak memory consumption was 56.5MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 6975]: 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_f4704502-29ef-4307-b30e-33a568a0e943/bin/utaipan-UbGMyvGFUs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4704502-29ef-4307-b30e-33a568a0e943/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_f4704502-29ef-4307-b30e-33a568a0e943/bin/utaipan-UbGMyvGFUs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4704502-29ef-4307-b30e-33a568a0e943/bin/utaipan-UbGMyvGFUs/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atlx-atl2.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4704502-29ef-4307-b30e-33a568a0e943/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_f4704502-29ef-4307-b30e-33a568a0e943/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 a17c24f91a3bb3d64b949ed6598dfddc35ec4ff57290faa768ce9df2bba8e700 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 14:48:21,008 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 14:48:21,013 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 14:48:21,079 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 14:48:21,080 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 14:48:21,086 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 14:48:21,088 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 14:48:21,094 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 14:48:21,098 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 14:48:21,107 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 14:48:21,108 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 14:48:21,110 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 14:48:21,111 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 14:48:21,114 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 14:48:21,116 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 14:48:21,121 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 14:48:21,123 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 14:48:21,124 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 14:48:21,126 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 14:48:21,135 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 14:48:21,138 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 14:48:21,140 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 14:48:21,143 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 14:48:21,145 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 14:48:21,156 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 14:48:21,156 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 14:48:21,157 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 14:48:21,159 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 14:48:21,160 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 14:48:21,161 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 14:48:21,162 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 14:48:21,163 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 14:48:21,165 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 14:48:21,166 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 14:48:21,168 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 14:48:21,169 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 14:48:21,170 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 14:48:21,170 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 14:48:21,171 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 14:48:21,173 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 14:48:21,174 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 14:48:21,175 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4704502-29ef-4307-b30e-33a568a0e943/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-19 14:48:21,226 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 14:48:21,226 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 14:48:21,228 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 14:48:21,228 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 14:48:21,228 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-19 14:48:21,228 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-19 14:48:21,229 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-19 14:48:21,229 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-19 14:48:21,229 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-19 14:48:21,229 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-19 14:48:21,232 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 14:48:21,232 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 14:48:21,233 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-19 14:48:21,233 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 14:48:21,233 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-19 14:48:21,233 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-19 14:48:21,233 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-19 14:48:21,234 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-19 14:48:21,234 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 14:48:21,234 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 14:48:21,234 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-19 14:48:21,235 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 14:48:21,235 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-19 14:48:21,235 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 14:48:21,235 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 14:48:21,236 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 14:48:21,236 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 14:48:21,236 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-19 14:48:21,236 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-19 14:48:21,237 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-19 14:48:21,237 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-19 14:48:21,237 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 14:48:21,237 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-19 14:48:21,238 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_f4704502-29ef-4307-b30e-33a568a0e943/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4704502-29ef-4307-b30e-33a568a0e943/bin/utaipan-UbGMyvGFUs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a17c24f91a3bb3d64b949ed6598dfddc35ec4ff57290faa768ce9df2bba8e700 [2021-11-19 14:48:21,692 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 14:48:21,716 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 14:48:21,720 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 14:48:21,722 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 14:48:21,723 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 14:48:21,724 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4704502-29ef-4307-b30e-33a568a0e943/bin/utaipan-UbGMyvGFUs/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atlx-atl2.cil.i [2021-11-19 14:48:21,812 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4704502-29ef-4307-b30e-33a568a0e943/bin/utaipan-UbGMyvGFUs/data/34c3171b4/a2cac346c1464492b1dfaa3fb1e27a1f/FLAG9e9a708ba [2021-11-19 14:48:22,968 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 14:48:22,969 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4704502-29ef-4307-b30e-33a568a0e943/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atlx-atl2.cil.i [2021-11-19 14:48:23,042 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4704502-29ef-4307-b30e-33a568a0e943/bin/utaipan-UbGMyvGFUs/data/34c3171b4/a2cac346c1464492b1dfaa3fb1e27a1f/FLAG9e9a708ba [2021-11-19 14:48:23,294 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4704502-29ef-4307-b30e-33a568a0e943/bin/utaipan-UbGMyvGFUs/data/34c3171b4/a2cac346c1464492b1dfaa3fb1e27a1f [2021-11-19 14:48:23,297 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 14:48:23,299 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 14:48:23,301 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 14:48:23,301 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 14:48:23,306 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 14:48:23,307 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:48:23" (1/1) ... [2021-11-19 14:48:23,308 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2d8a9573 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:48:23, skipping insertion in model container [2021-11-19 14:48:23,309 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:48:23" (1/1) ... [2021-11-19 14:48:23,317 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 14:48:23,561 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 14:48:27,696 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_f4704502-29ef-4307-b30e-33a568a0e943/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atlx-atl2.cil.i[396127,396140] [2021-11-19 14:48:27,699 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_f4704502-29ef-4307-b30e-33a568a0e943/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atlx-atl2.cil.i[396296,396309] [2021-11-19 14:48:27,700 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_f4704502-29ef-4307-b30e-33a568a0e943/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atlx-atl2.cil.i[396463,396476] [2021-11-19 14:48:27,700 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_f4704502-29ef-4307-b30e-33a568a0e943/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atlx-atl2.cil.i[396631,396644] [2021-11-19 14:48:27,723 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 14:48:27,770 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-19 14:48:27,855 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 14:48:28,297 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_f4704502-29ef-4307-b30e-33a568a0e943/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atlx-atl2.cil.i[396127,396140] [2021-11-19 14:48:28,297 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_f4704502-29ef-4307-b30e-33a568a0e943/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atlx-atl2.cil.i[396296,396309] [2021-11-19 14:48:28,298 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_f4704502-29ef-4307-b30e-33a568a0e943/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atlx-atl2.cil.i[396463,396476] [2021-11-19 14:48:28,299 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_f4704502-29ef-4307-b30e-33a568a0e943/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atlx-atl2.cil.i[396631,396644] [2021-11-19 14:48:28,306 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 14:48:28,351 INFO L203 MainTranslator]: Completed pre-run [2021-11-19 14:48:28,905 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_f4704502-29ef-4307-b30e-33a568a0e943/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atlx-atl2.cil.i[396127,396140] [2021-11-19 14:48:28,906 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_f4704502-29ef-4307-b30e-33a568a0e943/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atlx-atl2.cil.i[396296,396309] [2021-11-19 14:48:28,906 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_f4704502-29ef-4307-b30e-33a568a0e943/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atlx-atl2.cil.i[396463,396476] [2021-11-19 14:48:28,907 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_f4704502-29ef-4307-b30e-33a568a0e943/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atlx-atl2.cil.i[396631,396644] [2021-11-19 14:48:28,919 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 14:48:29,324 INFO L208 MainTranslator]: Completed translation [2021-11-19 14:48:29,325 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:48:29 WrapperNode [2021-11-19 14:48:29,328 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 14:48:29,330 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-19 14:48:29,331 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-19 14:48:29,331 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-19 14:48:29,338 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:48:29" (1/1) ... [2021-11-19 14:48:29,485 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:48:29" (1/1) ... [2021-11-19 14:48:29,734 INFO L137 Inliner]: procedures = 551, calls = 2748, calls flagged for inlining = 264, calls inlined = 238, statements flattened = 6103 [2021-11-19 14:48:29,735 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-19 14:48:29,736 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-19 14:48:29,736 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-19 14:48:29,736 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-19 14:48:29,745 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:48:29" (1/1) ... [2021-11-19 14:48:29,747 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:48:29" (1/1) ... [2021-11-19 14:48:29,794 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:48:29" (1/1) ... [2021-11-19 14:48:29,807 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:48:29" (1/1) ... [2021-11-19 14:48:29,963 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:48:29" (1/1) ... [2021-11-19 14:48:29,998 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:48:29" (1/1) ... [2021-11-19 14:48:30,038 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:48:29" (1/1) ... [2021-11-19 14:48:30,079 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-19 14:48:30,081 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-19 14:48:30,081 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-19 14:48:30,081 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-19 14:48:30,082 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:48:29" (1/1) ... [2021-11-19 14:48:30,089 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 14:48:30,100 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4704502-29ef-4307-b30e-33a568a0e943/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 14:48:30,114 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4704502-29ef-4307-b30e-33a568a0e943/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-19 14:48:30,143 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4704502-29ef-4307-b30e-33a568a0e943/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-19 14:48:30,228 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2021-11-19 14:48:30,228 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2021-11-19 14:48:30,228 INFO L130 BoogieDeclarations]: Found specification of procedure atl2_get_eeprom_len [2021-11-19 14:48:30,228 INFO L138 BoogieDeclarations]: Found implementation of procedure atl2_get_eeprom_len [2021-11-19 14:48:30,228 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2021-11-19 14:48:30,228 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2021-11-19 14:48:30,229 INFO L130 BoogieDeclarations]: Found specification of procedure atl2_nway_reset [2021-11-19 14:48:30,229 INFO L138 BoogieDeclarations]: Found implementation of procedure atl2_nway_reset [2021-11-19 14:48:30,229 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-19 14:48:30,229 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-19 14:48:30,229 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-11-19 14:48:30,230 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-11-19 14:48:30,230 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_87 [2021-11-19 14:48:30,230 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_87 [2021-11-19 14:48:30,231 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-19 14:48:30,231 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-19 14:48:30,231 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_word [2021-11-19 14:48:30,231 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_word [2021-11-19 14:48:30,232 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-11-19 14:48:30,232 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-11-19 14:48:30,232 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2021-11-19 14:48:30,232 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2021-11-19 14:48:30,232 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2021-11-19 14:48:30,232 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2021-11-19 14:48:30,233 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite16 [2021-11-19 14:48:30,233 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite16 [2021-11-19 14:48:30,233 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite8 [2021-11-19 14:48:30,233 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite8 [2021-11-19 14:48:30,234 INFO L130 BoogieDeclarations]: Found specification of procedure atl2_free_irq [2021-11-19 14:48:30,234 INFO L138 BoogieDeclarations]: Found implementation of procedure atl2_free_irq [2021-11-19 14:48:30,234 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32 [2021-11-19 14:48:30,234 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32 [2021-11-19 14:48:30,235 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2021-11-19 14:48:30,235 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2021-11-19 14:48:30,235 INFO L130 BoogieDeclarations]: Found specification of procedure atl2_close [2021-11-19 14:48:30,235 INFO L138 BoogieDeclarations]: Found implementation of procedure atl2_close [2021-11-19 14:48:30,235 INFO L130 BoogieDeclarations]: Found specification of procedure atl2_get_speed_and_duplex [2021-11-19 14:48:30,235 INFO L138 BoogieDeclarations]: Found implementation of procedure atl2_get_speed_and_duplex [2021-11-19 14:48:30,236 INFO L130 BoogieDeclarations]: Found specification of procedure atl2_force_ps [2021-11-19 14:48:30,236 INFO L138 BoogieDeclarations]: Found implementation of procedure atl2_force_ps [2021-11-19 14:48:30,236 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2021-11-19 14:48:30,237 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2021-11-19 14:48:30,237 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-19 14:48:30,238 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-19 14:48:30,238 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2021-11-19 14:48:30,238 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2021-11-19 14:48:30,239 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2021-11-19 14:48:30,239 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2021-11-19 14:48:30,239 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2021-11-19 14:48:30,239 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2021-11-19 14:48:30,239 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-19 14:48:30,239 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-19 14:48:30,240 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-19 14:48:30,240 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2021-11-19 14:48:30,240 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2021-11-19 14:48:30,241 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_word [2021-11-19 14:48:30,241 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_word [2021-11-19 14:48:30,241 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-19 14:48:30,241 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-19 14:48:30,242 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-19 14:48:30,242 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_sync [2021-11-19 14:48:30,242 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_sync [2021-11-19 14:48:30,242 INFO L130 BoogieDeclarations]: Found specification of procedure atl2_write_phy_reg [2021-11-19 14:48:30,242 INFO L138 BoogieDeclarations]: Found implementation of procedure atl2_write_phy_reg [2021-11-19 14:48:30,242 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_work_sync [2021-11-19 14:48:30,243 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_work_sync [2021-11-19 14:48:30,243 INFO L130 BoogieDeclarations]: Found specification of procedure atl2_vlan_mode [2021-11-19 14:48:30,243 INFO L138 BoogieDeclarations]: Found implementation of procedure atl2_vlan_mode [2021-11-19 14:48:30,243 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2021-11-19 14:48:30,243 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2021-11-19 14:48:30,244 INFO L130 BoogieDeclarations]: Found specification of procedure atl2_up [2021-11-19 14:48:30,244 INFO L138 BoogieDeclarations]: Found implementation of procedure atl2_up [2021-11-19 14:48:30,244 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-11-19 14:48:30,244 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-11-19 14:48:30,244 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-11-19 14:48:30,245 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-11-19 14:48:30,245 INFO L130 BoogieDeclarations]: Found specification of procedure atl2_tx_timeout [2021-11-19 14:48:30,245 INFO L138 BoogieDeclarations]: Found implementation of procedure atl2_tx_timeout [2021-11-19 14:48:30,246 INFO L130 BoogieDeclarations]: Found specification of procedure atl2_irq_enable [2021-11-19 14:48:30,246 INFO L138 BoogieDeclarations]: Found implementation of procedure atl2_irq_enable [2021-11-19 14:48:30,246 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-11-19 14:48:30,247 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-11-19 14:48:30,247 INFO L130 BoogieDeclarations]: Found specification of procedure atl2_poll_controller [2021-11-19 14:48:30,247 INFO L138 BoogieDeclarations]: Found implementation of procedure atl2_poll_controller [2021-11-19 14:48:30,247 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-19 14:48:30,248 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-19 14:48:30,248 INFO L130 BoogieDeclarations]: Found specification of procedure atl2_irq_disable [2021-11-19 14:48:30,248 INFO L138 BoogieDeclarations]: Found implementation of procedure atl2_irq_disable [2021-11-19 14:48:30,248 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-19 14:48:30,248 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-19 14:48:30,248 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_stats_lock_of_atl2_adapter [2021-11-19 14:48:30,249 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_stats_lock_of_atl2_adapter [2021-11-19 14:48:30,249 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2021-11-19 14:48:30,249 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2021-11-19 14:48:30,249 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-11-19 14:48:30,249 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-11-19 14:48:30,249 INFO L130 BoogieDeclarations]: Found specification of procedure pci_choose_state [2021-11-19 14:48:30,250 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_choose_state [2021-11-19 14:48:30,250 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-11-19 14:48:30,250 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-11-19 14:48:30,250 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-11-19 14:48:30,251 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-11-19 14:48:30,251 INFO L130 BoogieDeclarations]: Found specification of procedure atl2_shutdown [2021-11-19 14:48:30,252 INFO L138 BoogieDeclarations]: Found implementation of procedure atl2_shutdown [2021-11-19 14:48:30,256 INFO L130 BoogieDeclarations]: Found specification of procedure __atl2_vlan_mode [2021-11-19 14:48:30,256 INFO L138 BoogieDeclarations]: Found implementation of procedure __atl2_vlan_mode [2021-11-19 14:48:30,256 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2021-11-19 14:48:30,256 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2021-11-19 14:48:30,256 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-19 14:48:30,258 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2021-11-19 14:48:30,258 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2021-11-19 14:48:30,258 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2021-11-19 14:48:30,259 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2021-11-19 14:48:30,264 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer [2021-11-19 14:48:30,265 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer [2021-11-19 14:48:30,265 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-19 14:48:30,265 INFO L130 BoogieDeclarations]: Found specification of procedure is_valid_ether_addr [2021-11-19 14:48:30,265 INFO L138 BoogieDeclarations]: Found implementation of procedure is_valid_ether_addr [2021-11-19 14:48:30,266 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-19 14:48:30,266 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-19 14:48:30,266 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-11-19 14:48:30,266 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-11-19 14:48:30,266 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-19 14:48:30,266 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-19 14:48:30,267 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2021-11-19 14:48:30,267 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2021-11-19 14:48:30,267 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-11-19 14:48:30,267 INFO L130 BoogieDeclarations]: Found specification of procedure atl2_set_multi [2021-11-19 14:48:30,267 INFO L138 BoogieDeclarations]: Found implementation of procedure atl2_set_multi [2021-11-19 14:48:30,267 INFO L130 BoogieDeclarations]: Found specification of procedure atl2_phy_init [2021-11-19 14:48:30,267 INFO L138 BoogieDeclarations]: Found implementation of procedure atl2_phy_init [2021-11-19 14:48:30,268 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2021-11-19 14:48:30,268 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2021-11-19 14:48:30,268 INFO L130 BoogieDeclarations]: Found specification of procedure atl2_configure [2021-11-19 14:48:30,268 INFO L138 BoogieDeclarations]: Found implementation of procedure atl2_configure [2021-11-19 14:48:30,268 INFO L130 BoogieDeclarations]: Found specification of procedure atl2_reset_hw [2021-11-19 14:48:30,268 INFO L138 BoogieDeclarations]: Found implementation of procedure atl2_reset_hw [2021-11-19 14:48:30,269 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2021-11-19 14:48:30,269 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2021-11-19 14:48:30,269 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2021-11-19 14:48:30,269 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2021-11-19 14:48:30,270 INFO L130 BoogieDeclarations]: Found specification of procedure atl2_open [2021-11-19 14:48:30,270 INFO L138 BoogieDeclarations]: Found implementation of procedure atl2_open [2021-11-19 14:48:30,270 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-11-19 14:48:30,270 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-11-19 14:48:30,271 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2021-11-19 14:48:30,271 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2021-11-19 14:48:30,271 INFO L130 BoogieDeclarations]: Found specification of procedure atl2_validate_option [2021-11-19 14:48:30,271 INFO L138 BoogieDeclarations]: Found implementation of procedure atl2_validate_option [2021-11-19 14:48:30,271 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_stats_lock_of_atl2_adapter [2021-11-19 14:48:30,271 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_stats_lock_of_atl2_adapter [2021-11-19 14:48:30,271 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-11-19 14:48:30,272 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-11-19 14:48:30,272 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2021-11-19 14:48:30,272 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-19 14:48:30,272 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-19 14:48:30,272 INFO L130 BoogieDeclarations]: Found specification of procedure atl2_intr [2021-11-19 14:48:30,272 INFO L138 BoogieDeclarations]: Found implementation of procedure atl2_intr [2021-11-19 14:48:30,273 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-19 14:48:30,273 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2021-11-19 14:48:30,273 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2021-11-19 14:48:30,273 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-19 14:48:30,273 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-19 14:48:30,273 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-19 14:48:30,274 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2021-11-19 14:48:30,274 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-19 14:48:30,274 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-19 14:48:30,274 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-19 14:48:30,274 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-11-19 14:48:30,274 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-11-19 14:48:30,275 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2021-11-19 14:48:30,275 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2021-11-19 14:48:30,275 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2021-11-19 14:48:30,275 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2021-11-19 14:48:30,275 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2021-11-19 14:48:30,275 INFO L130 BoogieDeclarations]: Found specification of procedure atl2_remove [2021-11-19 14:48:30,276 INFO L138 BoogieDeclarations]: Found implementation of procedure atl2_remove [2021-11-19 14:48:30,276 INFO L130 BoogieDeclarations]: Found specification of procedure atl2_read_eeprom [2021-11-19 14:48:30,276 INFO L138 BoogieDeclarations]: Found implementation of procedure atl2_read_eeprom [2021-11-19 14:48:30,276 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_cmd_speed_set [2021-11-19 14:48:30,276 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_cmd_speed_set [2021-11-19 14:48:30,276 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2021-11-19 14:48:30,276 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2021-11-19 14:48:30,277 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-19 14:48:30,277 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-19 14:48:30,277 INFO L130 BoogieDeclarations]: Found specification of procedure atl2_request_irq [2021-11-19 14:48:30,277 INFO L138 BoogieDeclarations]: Found implementation of procedure atl2_request_irq [2021-11-19 14:48:30,277 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-11-19 14:48:30,277 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-11-19 14:48:30,278 INFO L130 BoogieDeclarations]: Found specification of procedure atl2_read_phy_reg [2021-11-19 14:48:30,278 INFO L138 BoogieDeclarations]: Found implementation of procedure atl2_read_phy_reg [2021-11-19 14:48:30,278 INFO L130 BoogieDeclarations]: Found specification of procedure round_jiffies [2021-11-19 14:48:30,278 INFO L138 BoogieDeclarations]: Found implementation of procedure round_jiffies [2021-11-19 14:48:30,278 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-19 14:48:30,278 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-11-19 14:48:30,279 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-11-19 14:48:30,279 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_master [2021-11-19 14:48:30,279 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_master [2021-11-19 14:48:30,279 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2021-11-19 14:48:30,279 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2021-11-19 14:48:30,279 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-19 14:48:30,280 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_wake [2021-11-19 14:48:30,280 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_wake [2021-11-19 14:48:30,280 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-19 14:48:30,280 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-19 14:48:30,280 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2021-11-19 14:48:30,280 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-19 14:48:30,280 INFO L130 BoogieDeclarations]: Found specification of procedure atl2_suspend [2021-11-19 14:48:30,281 INFO L138 BoogieDeclarations]: Found implementation of procedure atl2_suspend [2021-11-19 14:48:30,281 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-19 14:48:30,281 INFO L130 BoogieDeclarations]: Found specification of procedure atl2_reinit_locked [2021-11-19 14:48:30,281 INFO L138 BoogieDeclarations]: Found implementation of procedure atl2_reinit_locked [2021-11-19 14:48:30,281 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-11-19 14:48:30,281 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-11-19 14:48:30,282 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-19 14:48:30,282 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-19 14:48:30,282 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2021-11-19 14:48:30,282 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2021-11-19 14:48:30,282 INFO L130 BoogieDeclarations]: Found specification of procedure atl2_resume [2021-11-19 14:48:30,282 INFO L138 BoogieDeclarations]: Found implementation of procedure atl2_resume [2021-11-19 14:48:30,282 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-11-19 14:48:30,283 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-11-19 14:48:30,283 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2021-11-19 14:48:30,283 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2021-11-19 14:48:30,283 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_77 [2021-11-19 14:48:30,283 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_77 [2021-11-19 14:48:30,283 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-11-19 14:48:30,284 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-11-19 14:48:30,284 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-19 14:48:30,284 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-19 14:48:30,285 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-11-19 14:48:30,289 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2021-11-19 14:48:30,289 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2021-11-19 14:48:30,289 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2021-11-19 14:48:30,289 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-19 14:48:30,289 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-19 14:48:30,289 INFO L130 BoogieDeclarations]: Found specification of procedure atl2_get_regs_len [2021-11-19 14:48:30,290 INFO L138 BoogieDeclarations]: Found implementation of procedure atl2_get_regs_len [2021-11-19 14:48:30,290 INFO L130 BoogieDeclarations]: Found specification of procedure atl2_check_eeprom_exist [2021-11-19 14:48:30,290 INFO L138 BoogieDeclarations]: Found implementation of procedure atl2_check_eeprom_exist [2021-11-19 14:48:30,291 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2021-11-19 14:48:30,293 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2021-11-19 14:48:30,293 INFO L130 BoogieDeclarations]: Found specification of procedure atl2_restore_vlan [2021-11-19 14:48:30,293 INFO L138 BoogieDeclarations]: Found implementation of procedure atl2_restore_vlan [2021-11-19 14:48:30,293 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2021-11-19 14:48:30,293 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2021-11-19 14:48:30,294 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_78 [2021-11-19 14:48:30,294 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_78 [2021-11-19 14:48:30,294 INFO L130 BoogieDeclarations]: Found specification of procedure init_ring_ptrs [2021-11-19 14:48:30,294 INFO L138 BoogieDeclarations]: Found implementation of procedure init_ring_ptrs [2021-11-19 14:48:30,294 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2021-11-19 14:48:30,294 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2021-11-19 14:48:30,294 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_stop_queue [2021-11-19 14:48:30,295 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_stop_queue [2021-11-19 14:48:30,295 INFO L130 BoogieDeclarations]: Found specification of procedure atl2_free_ring_resources [2021-11-19 14:48:30,295 INFO L138 BoogieDeclarations]: Found implementation of procedure atl2_free_ring_resources [2021-11-19 14:48:30,295 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-19 14:48:30,295 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-19 14:48:30,295 INFO L130 BoogieDeclarations]: Found specification of procedure atl2_down [2021-11-19 14:48:30,295 INFO L138 BoogieDeclarations]: Found implementation of procedure atl2_down [2021-11-19 14:48:30,296 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2021-11-19 14:48:30,296 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2021-11-19 14:48:30,296 INFO L130 BoogieDeclarations]: Found specification of procedure init_timer_key [2021-11-19 14:48:30,296 INFO L138 BoogieDeclarations]: Found implementation of procedure init_timer_key [2021-11-19 14:48:30,296 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2021-11-19 14:48:30,296 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2021-11-19 14:48:30,297 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2021-11-19 14:48:30,297 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2021-11-19 14:48:30,297 INFO L130 BoogieDeclarations]: Found specification of procedure atl2_init_hw [2021-11-19 14:48:30,297 INFO L138 BoogieDeclarations]: Found implementation of procedure atl2_init_hw [2021-11-19 14:48:30,297 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-11-19 14:48:30,297 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-11-19 14:48:30,297 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2021-11-19 14:48:31,457 INFO L236 CfgBuilder]: Building ICFG [2021-11-19 14:48:31,463 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-19 14:48:31,656 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-19 14:49:14,490 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-19 14:49:18,408 INFO L277 CfgBuilder]: Performing block encoding [2021-11-19 14:49:18,435 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-19 14:49:18,436 INFO L301 CfgBuilder]: Removed 7 assume(true) statements. [2021-11-19 14:49:18,442 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:49:18 BoogieIcfgContainer [2021-11-19 14:49:18,442 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-19 14:49:18,444 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-19 14:49:18,444 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-19 14:49:18,448 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-19 14:49:18,448 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 02:48:23" (1/3) ... [2021-11-19 14:49:18,449 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31d0079e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 02:49:18, skipping insertion in model container [2021-11-19 14:49:18,449 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:48:29" (2/3) ... [2021-11-19 14:49:18,449 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31d0079e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 02:49:18, skipping insertion in model container [2021-11-19 14:49:18,449 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:49:18" (3/3) ... [2021-11-19 14:49:18,451 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atlx-atl2.cil.i [2021-11-19 14:49:18,456 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-19 14:49:18,457 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-11-19 14:49:18,517 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-19 14:49:18,522 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 14:49:18,523 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-11-19 14:49:18,598 INFO L276 IsEmpty]: Start isEmpty. Operand has 2335 states, 1589 states have (on average 1.2542479546884833) internal successors, (1993), 1611 states have internal predecessors, (1993), 624 states have call successors, (624), 120 states have call predecessors, (624), 119 states have return successors, (619), 617 states have call predecessors, (619), 619 states have call successors, (619) [2021-11-19 14:49:18,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2021-11-19 14:49:18,615 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:49:18,616 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 13, 13, 13, 13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:49:18,616 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-19 14:49:18,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:49:18,621 INFO L85 PathProgramCache]: Analyzing trace with hash -1128025312, now seen corresponding path program 1 times [2021-11-19 14:49:18,638 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:49:18,639 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1789651593] [2021-11-19 14:49:18,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:49:18,640 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:49:18,640 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4704502-29ef-4307-b30e-33a568a0e943/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:49:18,644 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4704502-29ef-4307-b30e-33a568a0e943/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:49:18,651 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4704502-29ef-4307-b30e-33a568a0e943/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-19 14:49:20,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:49:20,427 INFO L263 TraceCheckSpWp]: Trace formula consists of 1250 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 14:49:20,441 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:49:20,999 INFO L134 CoverageAnalysis]: Checked inductivity of 741 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 702 trivial. 0 not checked. [2021-11-19 14:49:20,999 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:49:21,518 INFO L134 CoverageAnalysis]: Checked inductivity of 741 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 741 trivial. 0 not checked. [2021-11-19 14:49:21,519 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:49:21,520 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1789651593] [2021-11-19 14:49:21,521 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1789651593] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:49:21,522 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:49:21,522 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-19 14:49:21,524 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1956418328] [2021-11-19 14:49:21,526 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:49:21,532 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 14:49:21,533 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:49:21,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 14:49:21,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:49:21,579 INFO L87 Difference]: Start difference. First operand has 2335 states, 1589 states have (on average 1.2542479546884833) internal successors, (1993), 1611 states have internal predecessors, (1993), 624 states have call successors, (624), 120 states have call predecessors, (624), 119 states have return successors, (619), 617 states have call predecessors, (619), 619 states have call successors, (619) Second operand has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 4 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) [2021-11-19 14:49:23,748 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:49:30,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:49:30,929 INFO L93 Difference]: Finished difference Result 9052 states and 12697 transitions. [2021-11-19 14:49:30,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:49:30,932 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 4 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) Word has length 167 [2021-11-19 14:49:30,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:49:31,018 INFO L225 Difference]: With dead ends: 9052 [2021-11-19 14:49:31,018 INFO L226 Difference]: Without dead ends: 6728 [2021-11-19 14:49:31,046 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 332 GetRequests, 330 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 14:49:31,050 INFO L933 BasicCegarLoop]: 4385 mSDtfsCounter, 6152 mSDsluCounter, 5718 mSDsCounter, 0 mSdLazyCounter, 1213 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6152 SdHoareTripleChecker+Valid, 10103 SdHoareTripleChecker+Invalid, 1221 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1213 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.6s IncrementalHoareTripleChecker+Time [2021-11-19 14:49:31,051 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6152 Valid, 10103 Invalid, 1221 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [7 Valid, 1213 Invalid, 1 Unknown, 0 Unchecked, 8.6s Time] [2021-11-19 14:49:31,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6728 states. [2021-11-19 14:49:31,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6728 to 6699. [2021-11-19 14:49:31,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6699 states, 4569 states have (on average 1.240534033705406) internal successors, (5668), 4630 states have internal predecessors, (5668), 1775 states have call successors, (1775), 353 states have call predecessors, (1775), 352 states have return successors, (1772), 1766 states have call predecessors, (1772), 1772 states have call successors, (1772) [2021-11-19 14:49:31,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6699 states to 6699 states and 9215 transitions. [2021-11-19 14:49:31,656 INFO L78 Accepts]: Start accepts. Automaton has 6699 states and 9215 transitions. Word has length 167 [2021-11-19 14:49:31,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:49:31,658 INFO L470 AbstractCegarLoop]: Abstraction has 6699 states and 9215 transitions. [2021-11-19 14:49:31,658 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 4 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) [2021-11-19 14:49:31,659 INFO L276 IsEmpty]: Start isEmpty. Operand 6699 states and 9215 transitions. [2021-11-19 14:49:31,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2021-11-19 14:49:31,665 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:49:31,666 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 13, 13, 13, 13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:49:31,712 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4704502-29ef-4307-b30e-33a568a0e943/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-19 14:49:31,891 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4704502-29ef-4307-b30e-33a568a0e943/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:49:31,892 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-19 14:49:31,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:49:31,892 INFO L85 PathProgramCache]: Analyzing trace with hash 75480426, now seen corresponding path program 1 times [2021-11-19 14:49:31,894 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:49:31,894 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1602437689] [2021-11-19 14:49:31,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:49:31,895 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:49:31,895 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4704502-29ef-4307-b30e-33a568a0e943/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:49:31,896 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4704502-29ef-4307-b30e-33a568a0e943/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:49:31,901 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4704502-29ef-4307-b30e-33a568a0e943/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-19 14:49:33,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:49:33,712 INFO L263 TraceCheckSpWp]: Trace formula consists of 1279 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 14:49:33,732 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:49:34,234 INFO L134 CoverageAnalysis]: Checked inductivity of 741 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 702 trivial. 0 not checked. [2021-11-19 14:49:34,234 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:49:34,706 INFO L134 CoverageAnalysis]: Checked inductivity of 741 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 741 trivial. 0 not checked. [2021-11-19 14:49:34,706 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:49:34,707 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1602437689] [2021-11-19 14:49:34,707 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1602437689] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:49:34,707 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:49:34,707 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-19 14:49:34,707 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1020329184] [2021-11-19 14:49:34,708 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:49:34,709 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 14:49:34,710 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:49:34,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 14:49:34,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:49:34,711 INFO L87 Difference]: Start difference. First operand 6699 states and 9215 transitions. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 4 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) [2021-11-19 14:49:36,869 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:49:44,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:49:44,435 INFO L93 Difference]: Finished difference Result 26049 states and 35903 transitions. [2021-11-19 14:49:44,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:49:44,436 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 4 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) Word has length 171 [2021-11-19 14:49:44,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:49:44,623 INFO L225 Difference]: With dead ends: 26049 [2021-11-19 14:49:44,623 INFO L226 Difference]: Without dead ends: 19381 [2021-11-19 14:49:44,660 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 340 GetRequests, 338 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 14:49:44,664 INFO L933 BasicCegarLoop]: 4318 mSDtfsCounter, 6065 mSDsluCounter, 7069 mSDsCounter, 0 mSdLazyCounter, 1158 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6065 SdHoareTripleChecker+Valid, 11387 SdHoareTripleChecker+Invalid, 1167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 1158 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.7s IncrementalHoareTripleChecker+Time [2021-11-19 14:49:44,665 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6065 Valid, 11387 Invalid, 1167 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [8 Valid, 1158 Invalid, 1 Unknown, 0 Unchecked, 8.7s Time] [2021-11-19 14:49:44,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19381 states. [2021-11-19 14:49:45,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19381 to 19301. [2021-11-19 14:49:45,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19301 states, 13249 states have (on average 1.246433693108914) internal successors, (16514), 13452 states have internal predecessors, (16514), 5031 states have call successors, (5031), 1049 states have call predecessors, (5031), 1018 states have return successors, (5076), 4940 states have call predecessors, (5076), 5028 states have call successors, (5076) [2021-11-19 14:49:46,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19301 states to 19301 states and 26621 transitions. [2021-11-19 14:49:46,075 INFO L78 Accepts]: Start accepts. Automaton has 19301 states and 26621 transitions. Word has length 171 [2021-11-19 14:49:46,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:49:46,078 INFO L470 AbstractCegarLoop]: Abstraction has 19301 states and 26621 transitions. [2021-11-19 14:49:46,079 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 4 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) [2021-11-19 14:49:46,079 INFO L276 IsEmpty]: Start isEmpty. Operand 19301 states and 26621 transitions. [2021-11-19 14:49:46,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2021-11-19 14:49:46,087 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:49:46,088 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 13, 13, 13, 13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:49:46,135 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4704502-29ef-4307-b30e-33a568a0e943/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-19 14:49:46,301 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4704502-29ef-4307-b30e-33a568a0e943/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:49:46,301 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-19 14:49:46,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:49:46,302 INFO L85 PathProgramCache]: Analyzing trace with hash 1694760687, now seen corresponding path program 1 times [2021-11-19 14:49:46,303 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:49:46,303 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1515664027] [2021-11-19 14:49:46,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:49:46,303 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:49:46,304 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4704502-29ef-4307-b30e-33a568a0e943/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:49:46,305 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4704502-29ef-4307-b30e-33a568a0e943/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:49:46,334 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4704502-29ef-4307-b30e-33a568a0e943/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-19 14:49:47,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:49:47,853 INFO L263 TraceCheckSpWp]: Trace formula consists of 1325 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 14:49:47,858 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:49:48,324 INFO L134 CoverageAnalysis]: Checked inductivity of 741 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 702 trivial. 0 not checked. [2021-11-19 14:49:48,324 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:49:48,900 INFO L134 CoverageAnalysis]: Checked inductivity of 741 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 741 trivial. 0 not checked. [2021-11-19 14:49:48,901 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:49:48,904 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1515664027] [2021-11-19 14:49:48,904 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1515664027] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:49:48,904 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:49:48,904 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-19 14:49:48,904 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1209938181] [2021-11-19 14:49:48,905 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:49:48,905 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 14:49:48,906 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:49:48,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 14:49:48,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:49:48,907 INFO L87 Difference]: Start difference. First operand 19301 states and 26621 transitions. Second operand has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 4 states have call successors, (26), 3 states have call predecessors, (26), 3 states have return successors, (22), 4 states have call predecessors, (22), 4 states have call successors, (22) [2021-11-19 14:49:51,027 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:49:58,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:49:58,696 INFO L93 Difference]: Finished difference Result 76421 states and 105719 transitions. [2021-11-19 14:49:58,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:49:58,696 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 4 states have call successors, (26), 3 states have call predecessors, (26), 3 states have return successors, (22), 4 states have call predecessors, (22), 4 states have call successors, (22) Word has length 184 [2021-11-19 14:49:58,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:49:59,049 INFO L225 Difference]: With dead ends: 76421 [2021-11-19 14:49:59,049 INFO L226 Difference]: Without dead ends: 57151 [2021-11-19 14:49:59,170 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 366 GetRequests, 364 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 14:49:59,175 INFO L933 BasicCegarLoop]: 4379 mSDtfsCounter, 6135 mSDsluCounter, 7332 mSDsCounter, 0 mSdLazyCounter, 1206 mSolverCounterSat, 15 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6135 SdHoareTripleChecker+Valid, 11711 SdHoareTripleChecker+Invalid, 1222 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 1206 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.2s IncrementalHoareTripleChecker+Time [2021-11-19 14:49:59,176 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6135 Valid, 11711 Invalid, 1222 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 1206 Invalid, 1 Unknown, 0 Unchecked, 8.2s Time] [2021-11-19 14:49:59,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57151 states. [2021-11-19 14:50:02,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57151 to 57047. [2021-11-19 14:50:02,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57047 states, 39169 states have (on average 1.247261865250581) internal successors, (48854), 39804 states have internal predecessors, (48854), 14877 states have call successors, (14877), 3119 states have call predecessors, (14877), 2998 states have return successors, (15240), 14528 states have call predecessors, (15240), 14874 states have call successors, (15240) [2021-11-19 14:50:03,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57047 states to 57047 states and 78971 transitions. [2021-11-19 14:50:03,106 INFO L78 Accepts]: Start accepts. Automaton has 57047 states and 78971 transitions. Word has length 184 [2021-11-19 14:50:03,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:50:03,108 INFO L470 AbstractCegarLoop]: Abstraction has 57047 states and 78971 transitions. [2021-11-19 14:50:03,109 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 4 states have call successors, (26), 3 states have call predecessors, (26), 3 states have return successors, (22), 4 states have call predecessors, (22), 4 states have call successors, (22) [2021-11-19 14:50:03,109 INFO L276 IsEmpty]: Start isEmpty. Operand 57047 states and 78971 transitions. [2021-11-19 14:50:03,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2021-11-19 14:50:03,115 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:50:03,116 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 13, 13, 13, 13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:50:03,170 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4704502-29ef-4307-b30e-33a568a0e943/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-19 14:50:03,336 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4704502-29ef-4307-b30e-33a568a0e943/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:50:03,336 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-19 14:50:03,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:50:03,337 INFO L85 PathProgramCache]: Analyzing trace with hash -2004995607, now seen corresponding path program 1 times [2021-11-19 14:50:03,338 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:50:03,338 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1030959618] [2021-11-19 14:50:03,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:50:03,339 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:50:03,339 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4704502-29ef-4307-b30e-33a568a0e943/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:50:03,341 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4704502-29ef-4307-b30e-33a568a0e943/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:50:03,384 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4704502-29ef-4307-b30e-33a568a0e943/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-19 14:50:05,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:50:05,255 INFO L263 TraceCheckSpWp]: Trace formula consists of 1324 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 14:50:05,260 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:50:05,740 INFO L134 CoverageAnalysis]: Checked inductivity of 741 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 702 trivial. 0 not checked. [2021-11-19 14:50:05,740 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:50:06,201 INFO L134 CoverageAnalysis]: Checked inductivity of 741 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 741 trivial. 0 not checked. [2021-11-19 14:50:06,202 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:50:06,202 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1030959618] [2021-11-19 14:50:06,202 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1030959618] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:50:06,202 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:50:06,202 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-19 14:50:06,203 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [106631289] [2021-11-19 14:50:06,203 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:50:06,203 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-19 14:50:06,204 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:50:06,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-19 14:50:06,204 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 14:50:06,205 INFO L87 Difference]: Start difference. First operand 57047 states and 78971 transitions. Second operand has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 3 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2021-11-19 14:50:08,318 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:50:11,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:50:11,851 INFO L93 Difference]: Finished difference Result 153754 states and 211829 transitions. [2021-11-19 14:50:11,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 14:50:11,851 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 3 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 189 [2021-11-19 14:50:11,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:50:12,746 INFO L225 Difference]: With dead ends: 153754 [2021-11-19 14:50:12,746 INFO L226 Difference]: Without dead ends: 96738 [2021-11-19 14:50:12,965 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 376 GetRequests, 375 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 14:50:12,966 INFO L933 BasicCegarLoop]: 3648 mSDtfsCounter, 2349 mSDsluCounter, 3053 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2349 SdHoareTripleChecker+Valid, 6701 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2021-11-19 14:50:12,967 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2349 Valid, 6701 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 87 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2021-11-19 14:50:13,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96738 states. [2021-11-19 14:50:17,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96738 to 96674. [2021-11-19 14:50:17,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96674 states, 65779 states have (on average 1.2371273506742273) internal successors, (81377), 66906 states have internal predecessors, (81377), 25302 states have call successors, (25302), 5834 states have call predecessors, (25302), 5590 states have return successors, (26013), 24617 states have call predecessors, (26013), 25299 states have call successors, (26013) [2021-11-19 14:50:18,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96674 states to 96674 states and 132692 transitions. [2021-11-19 14:50:18,979 INFO L78 Accepts]: Start accepts. Automaton has 96674 states and 132692 transitions. Word has length 189 [2021-11-19 14:50:18,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:50:18,980 INFO L470 AbstractCegarLoop]: Abstraction has 96674 states and 132692 transitions. [2021-11-19 14:50:18,981 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 3 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2021-11-19 14:50:18,981 INFO L276 IsEmpty]: Start isEmpty. Operand 96674 states and 132692 transitions. [2021-11-19 14:50:18,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2021-11-19 14:50:18,991 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:50:18,991 INFO L514 BasicCegarLoop]: trace histogram [17, 17, 13, 13, 13, 13, 13, 13, 4, 4, 4, 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] [2021-11-19 14:50:19,046 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4704502-29ef-4307-b30e-33a568a0e943/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-19 14:50:19,207 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4704502-29ef-4307-b30e-33a568a0e943/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:50:19,207 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-19 14:50:19,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:50:19,208 INFO L85 PathProgramCache]: Analyzing trace with hash 387245130, now seen corresponding path program 1 times [2021-11-19 14:50:19,210 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:50:19,210 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [360688578] [2021-11-19 14:50:19,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:50:19,210 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:50:19,210 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4704502-29ef-4307-b30e-33a568a0e943/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:50:19,212 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4704502-29ef-4307-b30e-33a568a0e943/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:50:19,251 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4704502-29ef-4307-b30e-33a568a0e943/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-19 14:50:20,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:50:20,788 INFO L263 TraceCheckSpWp]: Trace formula consists of 1371 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 14:50:20,797 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:50:22,319 INFO L134 CoverageAnalysis]: Checked inductivity of 906 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 906 trivial. 0 not checked. [2021-11-19 14:50:22,320 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:50:23,167 INFO L134 CoverageAnalysis]: Checked inductivity of 906 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 906 trivial. 0 not checked. [2021-11-19 14:50:23,167 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:50:23,167 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [360688578] [2021-11-19 14:50:23,168 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [360688578] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:50:23,168 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:50:23,168 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 5] imperfect sequences [] total 7 [2021-11-19 14:50:23,168 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1072069923] [2021-11-19 14:50:23,168 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:50:23,169 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-19 14:50:23,169 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:50:23,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-19 14:50:23,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-19 14:50:23,170 INFO L87 Difference]: Start difference. First operand 96674 states and 132692 transitions. Second operand has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 5 states have internal predecessors, (68), 2 states have call successors, (47), 4 states have call predecessors, (47), 2 states have return successors, (44), 2 states have call predecessors, (44), 2 states have call successors, (44) [2021-11-19 14:50:26,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:50:26,666 INFO L93 Difference]: Finished difference Result 98290 states and 134324 transitions. [2021-11-19 14:50:26,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 14:50:26,666 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 5 states have internal predecessors, (68), 2 states have call successors, (47), 4 states have call predecessors, (47), 2 states have return successors, (44), 2 states have call predecessors, (44), 2 states have call successors, (44) Word has length 219 [2021-11-19 14:50:26,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:50:27,203 INFO L225 Difference]: With dead ends: 98290 [2021-11-19 14:50:27,203 INFO L226 Difference]: Without dead ends: 98288 [2021-11-19 14:50:27,251 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 439 GetRequests, 431 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2021-11-19 14:50:27,252 INFO L933 BasicCegarLoop]: 3183 mSDtfsCounter, 3049 mSDsluCounter, 9565 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3063 SdHoareTripleChecker+Valid, 12748 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 14:50:27,252 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3063 Valid, 12748 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-19 14:50:27,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98288 states. [2021-11-19 14:50:31,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98288 to 98286. [2021-11-19 14:50:31,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98286 states, 66826 states have (on average 1.2356567802950946) internal successors, (82574), 68061 states have internal predecessors, (82574), 25518 states have call successors, (25518), 6183 states have call predecessors, (25518), 5939 states have return successors, (26229), 24833 states have call predecessors, (26229), 25515 states have call successors, (26229) [2021-11-19 14:50:32,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98286 states to 98286 states and 134321 transitions. [2021-11-19 14:50:32,774 INFO L78 Accepts]: Start accepts. Automaton has 98286 states and 134321 transitions. Word has length 219 [2021-11-19 14:50:32,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:50:32,776 INFO L470 AbstractCegarLoop]: Abstraction has 98286 states and 134321 transitions. [2021-11-19 14:50:32,776 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 5 states have internal predecessors, (68), 2 states have call successors, (47), 4 states have call predecessors, (47), 2 states have return successors, (44), 2 states have call predecessors, (44), 2 states have call successors, (44) [2021-11-19 14:50:32,777 INFO L276 IsEmpty]: Start isEmpty. Operand 98286 states and 134321 transitions. [2021-11-19 14:50:32,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2021-11-19 14:50:32,786 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:50:32,786 INFO L514 BasicCegarLoop]: trace histogram [17, 17, 13, 13, 13, 13, 13, 13, 4, 4, 4, 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] [2021-11-19 14:50:32,832 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4704502-29ef-4307-b30e-33a568a0e943/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-19 14:50:32,999 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4704502-29ef-4307-b30e-33a568a0e943/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:50:33,000 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-19 14:50:33,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:50:33,001 INFO L85 PathProgramCache]: Analyzing trace with hash -1206012490, now seen corresponding path program 1 times [2021-11-19 14:50:33,002 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:50:33,002 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1199994797] [2021-11-19 14:50:33,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:50:33,003 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:50:33,003 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4704502-29ef-4307-b30e-33a568a0e943/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:50:33,004 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4704502-29ef-4307-b30e-33a568a0e943/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:50:33,005 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4704502-29ef-4307-b30e-33a568a0e943/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-19 14:50:34,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:50:34,712 INFO L263 TraceCheckSpWp]: Trace formula consists of 1378 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 14:50:34,718 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:50:36,239 INFO L134 CoverageAnalysis]: Checked inductivity of 908 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 906 trivial. 0 not checked. [2021-11-19 14:50:36,239 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:50:37,164 INFO L134 CoverageAnalysis]: Checked inductivity of 908 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 906 trivial. 0 not checked. [2021-11-19 14:50:37,165 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:50:37,165 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1199994797] [2021-11-19 14:50:37,165 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1199994797] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 14:50:37,165 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-19 14:50:37,165 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2021-11-19 14:50:37,165 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [411037304] [2021-11-19 14:50:37,166 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 14:50:37,166 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 14:50:37,167 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:50:37,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 14:50:37,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-19 14:50:37,168 INFO L87 Difference]: Start difference. First operand 98286 states and 134321 transitions. Second operand has 5 states, 5 states have (on average 11.4) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2021-11-19 14:50:40,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:50:40,676 INFO L93 Difference]: Finished difference Result 98292 states and 134326 transitions. [2021-11-19 14:50:40,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 14:50:40,676 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 224 [2021-11-19 14:50:40,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:50:41,237 INFO L225 Difference]: With dead ends: 98292 [2021-11-19 14:50:41,237 INFO L226 Difference]: Without dead ends: 98290 [2021-11-19 14:50:41,275 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 449 GetRequests, 441 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2021-11-19 14:50:41,276 INFO L933 BasicCegarLoop]: 3162 mSDtfsCounter, 3092 mSDsluCounter, 6302 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3105 SdHoareTripleChecker+Valid, 9464 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 14:50:41,276 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3105 Valid, 9464 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-19 14:50:41,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98290 states. [2021-11-19 14:50:45,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98290 to 98290. [2021-11-19 14:50:45,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98290 states, 66829 states have (on average 1.235646201499349) internal successors, (82577), 68064 states have internal predecessors, (82577), 25518 states have call successors, (25518), 6184 states have call predecessors, (25518), 5940 states have return successors, (26229), 24833 states have call predecessors, (26229), 25515 states have call successors, (26229) [2021-11-19 14:50:46,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98290 states to 98290 states and 134324 transitions. [2021-11-19 14:50:46,280 INFO L78 Accepts]: Start accepts. Automaton has 98290 states and 134324 transitions. Word has length 224 [2021-11-19 14:50:46,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:50:46,281 INFO L470 AbstractCegarLoop]: Abstraction has 98290 states and 134324 transitions. [2021-11-19 14:50:46,282 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2021-11-19 14:50:46,282 INFO L276 IsEmpty]: Start isEmpty. Operand 98290 states and 134324 transitions. [2021-11-19 14:50:46,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2021-11-19 14:50:46,289 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:50:46,289 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 13, 13, 13, 13, 13, 13, 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] [2021-11-19 14:50:46,328 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4704502-29ef-4307-b30e-33a568a0e943/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (7)] Ended with exit code 0 [2021-11-19 14:50:46,503 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4704502-29ef-4307-b30e-33a568a0e943/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:50:46,503 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-19 14:50:46,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:50:46,504 INFO L85 PathProgramCache]: Analyzing trace with hash 1923579839, now seen corresponding path program 1 times [2021-11-19 14:50:46,505 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:50:46,505 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1161089333] [2021-11-19 14:50:46,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:50:46,506 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:50:46,506 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4704502-29ef-4307-b30e-33a568a0e943/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:50:46,507 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4704502-29ef-4307-b30e-33a568a0e943/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:50:46,508 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4704502-29ef-4307-b30e-33a568a0e943/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-19 14:50:48,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:50:48,102 INFO L263 TraceCheckSpWp]: Trace formula consists of 1430 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 14:50:48,106 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:50:48,663 INFO L134 CoverageAnalysis]: Checked inductivity of 744 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 705 trivial. 0 not checked. [2021-11-19 14:50:48,663 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:50:49,287 INFO L134 CoverageAnalysis]: Checked inductivity of 744 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 744 trivial. 0 not checked. [2021-11-19 14:50:49,287 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:50:49,287 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1161089333] [2021-11-19 14:50:49,288 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1161089333] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:50:49,288 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:50:49,288 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-19 14:50:49,288 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1200759234] [2021-11-19 14:50:49,289 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:50:49,289 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 14:50:49,290 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:50:49,290 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 14:50:49,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:50:49,291 INFO L87 Difference]: Start difference. First operand 98290 states and 134324 transitions. Second operand has 4 states, 4 states have (on average 25.5) internal successors, (102), 4 states have internal predecessors, (102), 4 states have call successors, (31), 3 states have call predecessors, (31), 3 states have return successors, (28), 4 states have call predecessors, (28), 4 states have call successors, (28) [2021-11-19 14:50:51,474 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 []