./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-irda-vlsi_ir.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 63182f13 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85f966f0-d9d3-4412-863c-5ea2e6668463/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85f966f0-d9d3-4412-863c-5ea2e6668463/bin/utaipan-vmNK8stdcF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85f966f0-d9d3-4412-863c-5ea2e6668463/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85f966f0-d9d3-4412-863c-5ea2e6668463/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-irda-vlsi_ir.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85f966f0-d9d3-4412-863c-5ea2e6668463/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85f966f0-d9d3-4412-863c-5ea2e6668463/bin/utaipan-vmNK8stdcF --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 75b1aed7e7cb1bec6496160634d456a50c33979e7f90c34d568c6a02281e03b1 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-12 23:30:06,008 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-12 23:30:06,010 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-12 23:30:06,062 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-12 23:30:06,063 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-12 23:30:06,065 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-12 23:30:06,067 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-12 23:30:06,070 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-12 23:30:06,072 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-12 23:30:06,074 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-12 23:30:06,075 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-12 23:30:06,077 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-12 23:30:06,078 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-12 23:30:06,079 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-12 23:30:06,081 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-12 23:30:06,083 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-12 23:30:06,084 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-12 23:30:06,085 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-12 23:30:06,088 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-12 23:30:06,091 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-12 23:30:06,093 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-12 23:30:06,094 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-12 23:30:06,096 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-12 23:30:06,097 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-12 23:30:06,101 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-12 23:30:06,102 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-12 23:30:06,102 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-12 23:30:06,104 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-12 23:30:06,105 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-12 23:30:06,106 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-12 23:30:06,106 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-12 23:30:06,108 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-12 23:30:06,109 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-12 23:30:06,110 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-12 23:30:06,112 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-12 23:30:06,112 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-12 23:30:06,113 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-12 23:30:06,113 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-12 23:30:06,114 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-12 23:30:06,115 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-12 23:30:06,116 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-12 23:30:06,117 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85f966f0-d9d3-4412-863c-5ea2e6668463/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-12 23:30:06,144 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-12 23:30:06,144 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-12 23:30:06,145 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-12 23:30:06,146 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-12 23:30:06,146 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-12 23:30:06,146 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-12 23:30:06,146 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-12 23:30:06,147 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-12 23:30:06,147 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-12 23:30:06,147 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-12 23:30:06,148 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-12 23:30:06,148 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-12 23:30:06,148 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-12 23:30:06,149 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-12 23:30:06,149 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-12 23:30:06,149 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-12 23:30:06,150 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-12 23:30:06,150 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-12 23:30:06,151 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-12 23:30:06,151 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-12 23:30:06,151 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-12 23:30:06,152 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-12 23:30:06,152 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-12 23:30:06,152 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-12 23:30:06,152 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-12 23:30:06,153 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-12 23:30:06,153 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-12 23:30:06,153 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-12 23:30:06,154 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 23:30:06,154 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-12 23:30:06,154 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-12 23:30:06,155 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-12 23:30:06,155 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-12 23:30:06,155 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-12 23:30:06,156 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-12 23:30:06,156 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-12 23:30:06,156 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-12 23:30:06,157 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_85f966f0-d9d3-4412-863c-5ea2e6668463/bin/utaipan-vmNK8stdcF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85f966f0-d9d3-4412-863c-5ea2e6668463/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 75b1aed7e7cb1bec6496160634d456a50c33979e7f90c34d568c6a02281e03b1 [2021-11-12 23:30:06,416 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-12 23:30:06,441 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-12 23:30:06,443 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-12 23:30:06,445 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-12 23:30:06,445 INFO L275 PluginConnector]: CDTParser initialized [2021-11-12 23:30:06,447 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85f966f0-d9d3-4412-863c-5ea2e6668463/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-irda-vlsi_ir.cil.i [2021-11-12 23:30:06,534 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85f966f0-d9d3-4412-863c-5ea2e6668463/bin/utaipan-vmNK8stdcF/data/4989f46e8/88f7041ee13a4de0b355352e08062d3e/FLAG4560057b1 [2021-11-12 23:30:07,541 INFO L306 CDTParser]: Found 1 translation units. [2021-11-12 23:30:07,542 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85f966f0-d9d3-4412-863c-5ea2e6668463/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-irda-vlsi_ir.cil.i [2021-11-12 23:30:07,596 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85f966f0-d9d3-4412-863c-5ea2e6668463/bin/utaipan-vmNK8stdcF/data/4989f46e8/88f7041ee13a4de0b355352e08062d3e/FLAG4560057b1 [2021-11-12 23:30:07,899 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85f966f0-d9d3-4412-863c-5ea2e6668463/bin/utaipan-vmNK8stdcF/data/4989f46e8/88f7041ee13a4de0b355352e08062d3e [2021-11-12 23:30:07,902 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-12 23:30:07,909 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-12 23:30:07,913 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-12 23:30:07,913 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-12 23:30:07,916 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-12 23:30:07,917 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 11:30:07" (1/1) ... [2021-11-12 23:30:07,918 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@77bd9486 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:30:07, skipping insertion in model container [2021-11-12 23:30:07,918 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 11:30:07" (1/1) ... [2021-11-12 23:30:07,926 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-12 23:30:08,135 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 23:30:11,278 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85f966f0-d9d3-4412-863c-5ea2e6668463/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-irda-vlsi_ir.cil.i[347848,347861] [2021-11-12 23:30:11,282 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85f966f0-d9d3-4412-863c-5ea2e6668463/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-irda-vlsi_ir.cil.i[348017,348030] [2021-11-12 23:30:11,283 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85f966f0-d9d3-4412-863c-5ea2e6668463/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-irda-vlsi_ir.cil.i[348184,348197] [2021-11-12 23:30:11,283 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85f966f0-d9d3-4412-863c-5ea2e6668463/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-irda-vlsi_ir.cil.i[348352,348365] [2021-11-12 23:30:11,310 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 23:30:11,341 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) [2021-11-12 23:30:11,342 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@5075a1f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:30:11, skipping insertion in model container [2021-11-12 23:30:11,342 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-12 23:30:11,342 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-12 23:30:11,345 INFO L158 Benchmark]: Toolchain (without parser) took 3434.55ms. Allocated memory was 111.1MB in the beginning and 155.2MB in the end (delta: 44.0MB). Free memory was 65.8MB in the beginning and 73.4MB in the end (delta: -7.6MB). Peak memory consumption was 43.9MB. Max. memory is 16.1GB. [2021-11-12 23:30:11,345 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 111.1MB. Free memory is still 63.2MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-12 23:30:11,346 INFO L158 Benchmark]: CACSL2BoogieTranslator took 3429.63ms. Allocated memory was 111.1MB in the beginning and 155.2MB in the end (delta: 44.0MB). Free memory was 65.5MB in the beginning and 73.4MB in the end (delta: -7.9MB). Peak memory consumption was 43.9MB. Max. memory is 16.1GB. [2021-11-12 23:30:11,348 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 111.1MB. Free memory is still 63.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 3429.63ms. Allocated memory was 111.1MB in the beginning and 155.2MB in the end (delta: 44.0MB). Free memory was 65.5MB in the beginning and 73.4MB in the end (delta: -7.9MB). Peak memory consumption was 43.9MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 6977]: 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_85f966f0-d9d3-4412-863c-5ea2e6668463/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85f966f0-d9d3-4412-863c-5ea2e6668463/bin/utaipan-vmNK8stdcF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85f966f0-d9d3-4412-863c-5ea2e6668463/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85f966f0-d9d3-4412-863c-5ea2e6668463/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-irda-vlsi_ir.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85f966f0-d9d3-4412-863c-5ea2e6668463/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85f966f0-d9d3-4412-863c-5ea2e6668463/bin/utaipan-vmNK8stdcF --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 75b1aed7e7cb1bec6496160634d456a50c33979e7f90c34d568c6a02281e03b1 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-12 23:30:13,706 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-12 23:30:13,709 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-12 23:30:13,767 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-12 23:30:13,768 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-12 23:30:13,772 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-12 23:30:13,774 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-12 23:30:13,778 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-12 23:30:13,782 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-12 23:30:13,790 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-12 23:30:13,791 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-12 23:30:13,793 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-12 23:30:13,794 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-12 23:30:13,796 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-12 23:30:13,798 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-12 23:30:13,803 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-12 23:30:13,805 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-12 23:30:13,806 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-12 23:30:13,808 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-12 23:30:13,816 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-12 23:30:13,818 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-12 23:30:13,820 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-12 23:30:13,823 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-12 23:30:13,825 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-12 23:30:13,834 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-12 23:30:13,834 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-12 23:30:13,834 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-12 23:30:13,837 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-12 23:30:13,837 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-12 23:30:13,838 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-12 23:30:13,839 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-12 23:30:13,840 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-12 23:30:13,842 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-12 23:30:13,842 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-12 23:30:13,864 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-12 23:30:13,865 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-12 23:30:13,866 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-12 23:30:13,866 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-12 23:30:13,867 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-12 23:30:13,869 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-12 23:30:13,869 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-12 23:30:13,870 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85f966f0-d9d3-4412-863c-5ea2e6668463/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-12 23:30:13,915 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-12 23:30:13,916 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-12 23:30:13,917 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-12 23:30:13,917 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-12 23:30:13,917 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-12 23:30:13,918 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-12 23:30:13,918 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-12 23:30:13,918 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-12 23:30:13,918 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-12 23:30:13,919 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-12 23:30:13,921 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-12 23:30:13,921 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-12 23:30:13,922 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-12 23:30:13,922 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-12 23:30:13,922 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-12 23:30:13,922 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-12 23:30:13,922 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-12 23:30:13,923 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-12 23:30:13,923 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-12 23:30:13,923 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-12 23:30:13,923 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-12 23:30:13,924 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-12 23:30:13,924 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-12 23:30:13,924 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-12 23:30:13,924 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 23:30:13,925 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-12 23:30:13,925 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-12 23:30:13,925 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-12 23:30:13,925 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-12 23:30:13,926 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-12 23:30:13,926 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-12 23:30:13,926 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-12 23:30:13,926 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-12 23:30:13,926 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_85f966f0-d9d3-4412-863c-5ea2e6668463/bin/utaipan-vmNK8stdcF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85f966f0-d9d3-4412-863c-5ea2e6668463/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 75b1aed7e7cb1bec6496160634d456a50c33979e7f90c34d568c6a02281e03b1 [2021-11-12 23:30:14,334 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-12 23:30:14,355 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-12 23:30:14,357 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-12 23:30:14,359 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-12 23:30:14,360 INFO L275 PluginConnector]: CDTParser initialized [2021-11-12 23:30:14,361 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85f966f0-d9d3-4412-863c-5ea2e6668463/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-irda-vlsi_ir.cil.i [2021-11-12 23:30:14,432 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85f966f0-d9d3-4412-863c-5ea2e6668463/bin/utaipan-vmNK8stdcF/data/c38415869/815f777673cd4ac3b143fdac0bc5149c/FLAG6ae4f4acd [2021-11-12 23:30:15,606 INFO L306 CDTParser]: Found 1 translation units. [2021-11-12 23:30:15,607 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85f966f0-d9d3-4412-863c-5ea2e6668463/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-irda-vlsi_ir.cil.i [2021-11-12 23:30:15,660 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85f966f0-d9d3-4412-863c-5ea2e6668463/bin/utaipan-vmNK8stdcF/data/c38415869/815f777673cd4ac3b143fdac0bc5149c/FLAG6ae4f4acd [2021-11-12 23:30:15,909 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85f966f0-d9d3-4412-863c-5ea2e6668463/bin/utaipan-vmNK8stdcF/data/c38415869/815f777673cd4ac3b143fdac0bc5149c [2021-11-12 23:30:15,912 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-12 23:30:15,915 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-12 23:30:15,918 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-12 23:30:15,919 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-12 23:30:15,922 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-12 23:30:15,923 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 11:30:15" (1/1) ... [2021-11-12 23:30:15,924 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ae07b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:30:15, skipping insertion in model container [2021-11-12 23:30:15,924 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 11:30:15" (1/1) ... [2021-11-12 23:30:15,931 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-12 23:30:16,123 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 23:30:19,765 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85f966f0-d9d3-4412-863c-5ea2e6668463/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-irda-vlsi_ir.cil.i[347848,347861] [2021-11-12 23:30:19,768 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85f966f0-d9d3-4412-863c-5ea2e6668463/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-irda-vlsi_ir.cil.i[348017,348030] [2021-11-12 23:30:19,768 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85f966f0-d9d3-4412-863c-5ea2e6668463/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-irda-vlsi_ir.cil.i[348184,348197] [2021-11-12 23:30:19,769 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85f966f0-d9d3-4412-863c-5ea2e6668463/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-irda-vlsi_ir.cil.i[348352,348365] [2021-11-12 23:30:19,801 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 23:30:19,853 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-12 23:30:19,941 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 23:30:20,326 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85f966f0-d9d3-4412-863c-5ea2e6668463/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-irda-vlsi_ir.cil.i[347848,347861] [2021-11-12 23:30:20,327 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85f966f0-d9d3-4412-863c-5ea2e6668463/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-irda-vlsi_ir.cil.i[348017,348030] [2021-11-12 23:30:20,327 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85f966f0-d9d3-4412-863c-5ea2e6668463/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-irda-vlsi_ir.cil.i[348184,348197] [2021-11-12 23:30:20,331 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85f966f0-d9d3-4412-863c-5ea2e6668463/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-irda-vlsi_ir.cil.i[348352,348365] [2021-11-12 23:30:20,340 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 23:30:20,368 INFO L203 MainTranslator]: Completed pre-run [2021-11-12 23:30:20,833 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85f966f0-d9d3-4412-863c-5ea2e6668463/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-irda-vlsi_ir.cil.i[347848,347861] [2021-11-12 23:30:20,833 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85f966f0-d9d3-4412-863c-5ea2e6668463/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-irda-vlsi_ir.cil.i[348017,348030] [2021-11-12 23:30:20,834 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85f966f0-d9d3-4412-863c-5ea2e6668463/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-irda-vlsi_ir.cil.i[348184,348197] [2021-11-12 23:30:20,834 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85f966f0-d9d3-4412-863c-5ea2e6668463/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-irda-vlsi_ir.cil.i[348352,348365] [2021-11-12 23:30:20,845 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 23:30:21,113 INFO L208 MainTranslator]: Completed translation [2021-11-12 23:30:21,114 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:30:21 WrapperNode [2021-11-12 23:30:21,114 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-12 23:30:21,116 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-12 23:30:21,116 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-12 23:30:21,117 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-12 23:30:21,124 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:30:21" (1/1) ... [2021-11-12 23:30:21,318 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:30:21" (1/1) ... [2021-11-12 23:30:21,588 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-12 23:30:21,589 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-12 23:30:21,590 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-12 23:30:21,591 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-12 23:30:21,599 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:30:21" (1/1) ... [2021-11-12 23:30:21,600 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:30:21" (1/1) ... [2021-11-12 23:30:21,667 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:30:21" (1/1) ... [2021-11-12 23:30:21,668 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:30:21" (1/1) ... [2021-11-12 23:30:21,898 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:30:21" (1/1) ... [2021-11-12 23:30:21,942 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:30:21" (1/1) ... [2021-11-12 23:30:22,000 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:30:21" (1/1) ... [2021-11-12 23:30:22,034 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-12 23:30:22,036 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-12 23:30:22,037 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-12 23:30:22,037 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-12 23:30:22,038 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:30:21" (1/1) ... [2021-11-12 23:30:22,045 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 23:30:22,056 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85f966f0-d9d3-4412-863c-5ea2e6668463/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 23:30:22,071 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85f966f0-d9d3-4412-863c-5ea2e6668463/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-12 23:30:22,101 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85f966f0-d9d3-4412-863c-5ea2e6668463/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-12 23:30:22,123 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2021-11-12 23:30:22,123 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2021-11-12 23:30:22,123 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2021-11-12 23:30:22,124 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2021-11-12 23:30:22,124 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-12 23:30:22,124 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-12 23:30:22,124 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-11-12 23:30:22,124 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-11-12 23:30:22,125 INFO L130 BoogieDeclarations]: Found specification of procedure rd_get_count [2021-11-12 23:30:22,125 INFO L138 BoogieDeclarations]: Found implementation of procedure rd_get_count [2021-11-12 23:30:22,125 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-12 23:30:22,125 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-12 23:30:22,125 INFO L130 BoogieDeclarations]: Found specification of procedure rd_set_status [2021-11-12 23:30:22,125 INFO L138 BoogieDeclarations]: Found implementation of procedure rd_set_status [2021-11-12 23:30:22,126 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2021-11-12 23:30:22,126 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2021-11-12 23:30:22,126 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_sync_single_for_cpu [2021-11-12 23:30:22,126 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_sync_single_for_cpu [2021-11-12 23:30:22,126 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-11-12 23:30:22,127 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-11-12 23:30:22,127 INFO L130 BoogieDeclarations]: Found specification of procedure vlsi_ring_debug [2021-11-12 23:30:22,127 INFO L138 BoogieDeclarations]: Found implementation of procedure vlsi_ring_debug [2021-11-12 23:30:22,127 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-11-12 23:30:22,127 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-11-12 23:30:22,127 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_65 [2021-11-12 23:30:22,128 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_65 [2021-11-12 23:30:22,128 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2021-11-12 23:30:22,128 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2021-11-12 23:30:22,129 INFO L130 BoogieDeclarations]: Found specification of procedure vlsi_close [2021-11-12 23:30:22,129 INFO L138 BoogieDeclarations]: Found implementation of procedure vlsi_close [2021-11-12 23:30:22,129 INFO L130 BoogieDeclarations]: Found specification of procedure vlsi_irda_resume [2021-11-12 23:30:22,129 INFO L138 BoogieDeclarations]: Found implementation of procedure vlsi_irda_resume [2021-11-12 23:30:22,130 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2021-11-12 23:30:22,130 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2021-11-12 23:30:22,130 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-12 23:30:22,130 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-12 23:30:22,130 INFO L130 BoogieDeclarations]: Found specification of procedure remove_proc_entry [2021-11-12 23:30:22,131 INFO L138 BoogieDeclarations]: Found implementation of procedure remove_proc_entry [2021-11-12 23:30:22,131 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-12 23:30:22,131 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-12 23:30:22,131 INFO L130 BoogieDeclarations]: Found specification of procedure vlsi_free_ring [2021-11-12 23:30:22,132 INFO L138 BoogieDeclarations]: Found implementation of procedure vlsi_free_ring [2021-11-12 23:30:22,132 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2021-11-12 23:30:22,133 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2021-11-12 23:30:22,133 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-12 23:30:22,134 INFO L130 BoogieDeclarations]: Found specification of procedure netif_queue_stopped [2021-11-12 23:30:22,134 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_queue_stopped [2021-11-12 23:30:22,134 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-12 23:30:22,134 INFO L130 BoogieDeclarations]: Found specification of procedure capable [2021-11-12 23:30:22,134 INFO L138 BoogieDeclarations]: Found implementation of procedure capable [2021-11-12 23:30:22,134 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-12 23:30:22,135 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-12 23:30:22,135 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2021-11-12 23:30:22,135 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2021-11-12 23:30:22,136 INFO L130 BoogieDeclarations]: Found specification of procedure vlsi_tx_timeout [2021-11-12 23:30:22,136 INFO L138 BoogieDeclarations]: Found implementation of procedure vlsi_tx_timeout [2021-11-12 23:30:22,136 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-11-12 23:30:22,136 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-11-12 23:30:22,136 INFO L130 BoogieDeclarations]: Found specification of procedure vlsi_destroy_hwif [2021-11-12 23:30:22,137 INFO L138 BoogieDeclarations]: Found implementation of procedure vlsi_destroy_hwif [2021-11-12 23:30:22,138 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-11-12 23:30:22,138 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-11-12 23:30:22,138 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-12 23:30:22,138 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-12 23:30:22,138 INFO L130 BoogieDeclarations]: Found specification of procedure vlsi_stop_hw [2021-11-12 23:30:22,139 INFO L138 BoogieDeclarations]: Found implementation of procedure vlsi_stop_hw [2021-11-12 23:30:22,139 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-11-12 23:30:22,139 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-11-12 23:30:22,139 INFO L130 BoogieDeclarations]: Found specification of procedure vlsi_irda_remove [2021-11-12 23:30:22,139 INFO L138 BoogieDeclarations]: Found implementation of procedure vlsi_irda_remove [2021-11-12 23:30:22,140 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-12 23:30:22,140 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-12 23:30:22,140 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-11-12 23:30:22,140 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-11-12 23:30:22,141 INFO L130 BoogieDeclarations]: Found specification of procedure pci_choose_state [2021-11-12 23:30:22,141 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_choose_state [2021-11-12 23:30:22,141 INFO L130 BoogieDeclarations]: Found specification of procedure vlsi_clear_regs [2021-11-12 23:30:22,141 INFO L138 BoogieDeclarations]: Found implementation of procedure vlsi_clear_regs [2021-11-12 23:30:22,142 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-11-12 23:30:22,142 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-11-12 23:30:22,142 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_dma_mask [2021-11-12 23:30:22,143 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_dma_mask [2021-11-12 23:30:22,143 INFO L130 BoogieDeclarations]: Found specification of procedure vlsi_start_hw [2021-11-12 23:30:22,143 INFO L138 BoogieDeclarations]: Found implementation of procedure vlsi_start_hw [2021-11-12 23:30:22,143 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2021-11-12 23:30:22,144 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2021-11-12 23:30:22,144 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-11-12 23:30:22,144 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-11-12 23:30:22,144 INFO L130 BoogieDeclarations]: Found specification of procedure rd_activate [2021-11-12 23:30:22,144 INFO L138 BoogieDeclarations]: Found implementation of procedure rd_activate [2021-11-12 23:30:22,144 INFO L130 BoogieDeclarations]: Found specification of procedure rd_is_active [2021-11-12 23:30:22,145 INFO L138 BoogieDeclarations]: Found implementation of procedure rd_is_active [2021-11-12 23:30:22,145 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2021-11-12 23:30:22,145 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2021-11-12 23:30:22,145 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-12 23:30:22,145 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2021-11-12 23:30:22,146 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2021-11-12 23:30:22,146 INFO L130 BoogieDeclarations]: Found specification of procedure rd_set_count [2021-11-12 23:30:22,146 INFO L138 BoogieDeclarations]: Found implementation of procedure rd_set_count [2021-11-12 23:30:22,146 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2021-11-12 23:30:22,147 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2021-11-12 23:30:22,147 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-12 23:30:22,147 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-12 23:30:22,148 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-11-12 23:30:22,149 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-11-12 23:30:22,151 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-12 23:30:22,152 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-12 23:30:22,152 INFO L130 BoogieDeclarations]: Found specification of procedure vlsi_open [2021-11-12 23:30:22,152 INFO L138 BoogieDeclarations]: Found implementation of procedure vlsi_open [2021-11-12 23:30:22,153 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2021-11-12 23:30:22,154 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2021-11-12 23:30:22,154 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-12 23:30:22,154 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-12 23:30:22,155 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-11-12 23:30:22,161 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_vlsi_mod_exit_11_2 [2021-11-12 23:30:22,161 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_vlsi_mod_exit_11_2 [2021-11-12 23:30:22,161 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2021-11-12 23:30:22,161 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2021-11-12 23:30:22,162 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-11-12 23:30:22,162 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-11-12 23:30:22,162 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2021-11-12 23:30:22,162 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2021-11-12 23:30:22,162 INFO L130 BoogieDeclarations]: Found specification of procedure vlsi_reg_debug [2021-11-12 23:30:22,163 INFO L138 BoogieDeclarations]: Found implementation of procedure vlsi_reg_debug [2021-11-12 23:30:22,163 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2021-11-12 23:30:22,163 INFO L130 BoogieDeclarations]: Found specification of procedure vlsi_set_baud [2021-11-12 23:30:22,163 INFO L138 BoogieDeclarations]: Found implementation of procedure vlsi_set_baud [2021-11-12 23:30:22,163 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-12 23:30:22,163 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-12 23:30:22,163 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-12 23:30:22,164 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-12 23:30:22,164 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-12 23:30:22,164 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-12 23:30:22,164 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2021-11-12 23:30:22,164 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-12 23:30:22,164 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-12 23:30:22,165 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-12 23:30:22,165 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-11-12 23:30:22,165 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-11-12 23:30:22,165 INFO L130 BoogieDeclarations]: Found specification of procedure seq_read [2021-11-12 23:30:22,165 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_read [2021-11-12 23:30:22,165 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_byte [2021-11-12 23:30:22,166 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_byte [2021-11-12 23:30:22,166 INFO L130 BoogieDeclarations]: Found specification of procedure rd_get_status [2021-11-12 23:30:22,166 INFO L138 BoogieDeclarations]: Found implementation of procedure rd_get_status [2021-11-12 23:30:22,166 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-11-12 23:30:22,166 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-11-12 23:30:22,166 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2021-11-12 23:30:22,166 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2021-11-12 23:30:22,167 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-12 23:30:22,167 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-12 23:30:22,167 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-11-12 23:30:22,167 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-11-12 23:30:22,167 INFO L130 BoogieDeclarations]: Found specification of procedure ring_get [2021-11-12 23:30:22,167 INFO L138 BoogieDeclarations]: Found implementation of procedure ring_get [2021-11-12 23:30:22,168 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2021-11-12 23:30:22,168 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2021-11-12 23:30:22,168 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-12 23:30:22,168 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2021-11-12 23:30:22,168 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2021-11-12 23:30:22,168 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-12 23:30:22,168 INFO L130 BoogieDeclarations]: Found specification of procedure ring_last [2021-11-12 23:30:22,169 INFO L138 BoogieDeclarations]: Found implementation of procedure ring_last [2021-11-12 23:30:22,169 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-12 23:30:22,169 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-12 23:30:22,169 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2021-11-12 23:30:22,169 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-12 23:30:22,169 INFO L130 BoogieDeclarations]: Found specification of procedure ring_put [2021-11-12 23:30:22,170 INFO L138 BoogieDeclarations]: Found implementation of procedure ring_put [2021-11-12 23:30:22,170 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-12 23:30:22,170 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_byte [2021-11-12 23:30:22,170 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_byte [2021-11-12 23:30:22,170 INFO L130 BoogieDeclarations]: Found specification of procedure do_gettimeofday [2021-11-12 23:30:22,170 INFO L138 BoogieDeclarations]: Found implementation of procedure do_gettimeofday [2021-11-12 23:30:22,171 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~C_ULONG~X~C_INT~TO~VOID [2021-11-12 23:30:22,171 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~C_ULONG~X~C_INT~TO~VOID [2021-11-12 23:30:22,171 INFO L130 BoogieDeclarations]: Found specification of procedure outw [2021-11-12 23:30:22,171 INFO L138 BoogieDeclarations]: Found implementation of procedure outw [2021-11-12 23:30:22,171 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2021-11-12 23:30:22,171 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2021-11-12 23:30:22,172 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-11-12 23:30:22,172 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-11-12 23:30:22,172 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2021-11-12 23:30:22,172 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2021-11-12 23:30:22,172 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-12 23:30:22,172 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-12 23:30:22,172 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2021-11-12 23:30:22,173 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2021-11-12 23:30:22,173 INFO L130 BoogieDeclarations]: Found specification of procedure rd_set_addr_status [2021-11-12 23:30:22,173 INFO L138 BoogieDeclarations]: Found implementation of procedure rd_set_addr_status [2021-11-12 23:30:22,173 INFO L130 BoogieDeclarations]: Found specification of procedure rd_get_addr [2021-11-12 23:30:22,173 INFO L138 BoogieDeclarations]: Found implementation of procedure rd_get_addr [2021-11-12 23:30:22,173 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2021-11-12 23:30:22,174 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2021-11-12 23:30:22,174 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-11-12 23:30:22,174 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-11-12 23:30:22,174 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-11-12 23:30:22,174 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-11-12 23:30:22,174 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-12 23:30:22,175 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-12 23:30:22,175 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-11-12 23:30:22,175 INFO L130 BoogieDeclarations]: Found specification of procedure net_ratelimit [2021-11-12 23:30:22,175 INFO L138 BoogieDeclarations]: Found implementation of procedure net_ratelimit [2021-11-12 23:30:22,175 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2021-11-12 23:30:22,175 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2021-11-12 23:30:22,175 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2021-11-12 23:30:22,176 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-12 23:30:22,176 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-12 23:30:22,176 INFO L130 BoogieDeclarations]: Found specification of procedure irlap_close [2021-11-12 23:30:22,176 INFO L138 BoogieDeclarations]: Found implementation of procedure irlap_close [2021-11-12 23:30:22,176 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2021-11-12 23:30:22,176 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2021-11-12 23:30:22,177 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2021-11-12 23:30:22,177 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2021-11-12 23:30:22,177 INFO L130 BoogieDeclarations]: Found specification of procedure vlsi_process_tx [2021-11-12 23:30:22,177 INFO L138 BoogieDeclarations]: Found implementation of procedure vlsi_process_tx [2021-11-12 23:30:22,177 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-12 23:30:22,177 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-12 23:30:22,177 INFO L130 BoogieDeclarations]: Found specification of procedure vlsi_alloc_ring [2021-11-12 23:30:22,178 INFO L138 BoogieDeclarations]: Found implementation of procedure vlsi_alloc_ring [2021-11-12 23:30:22,178 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_vlsi_irda_dev [2021-11-12 23:30:22,178 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_vlsi_irda_dev [2021-11-12 23:30:22,178 INFO L130 BoogieDeclarations]: Found specification of procedure vlsi_fill_rx [2021-11-12 23:30:22,178 INFO L138 BoogieDeclarations]: Found implementation of procedure vlsi_fill_rx [2021-11-12 23:30:22,178 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2021-11-12 23:30:22,179 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2021-11-12 23:30:22,179 INFO L130 BoogieDeclarations]: Found specification of procedure vlsi_process_rx [2021-11-12 23:30:22,179 INFO L138 BoogieDeclarations]: Found implementation of procedure vlsi_process_rx [2021-11-12 23:30:22,179 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2021-11-12 23:30:22,179 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2021-11-12 23:30:22,179 INFO L130 BoogieDeclarations]: Found specification of procedure inw [2021-11-12 23:30:22,180 INFO L138 BoogieDeclarations]: Found implementation of procedure inw [2021-11-12 23:30:22,184 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-11-12 23:30:22,184 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-11-12 23:30:22,185 INFO L130 BoogieDeclarations]: Found specification of procedure ring_first [2021-11-12 23:30:22,185 INFO L138 BoogieDeclarations]: Found implementation of procedure ring_first [2021-11-12 23:30:22,185 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_sync_single_for_device [2021-11-12 23:30:22,185 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_sync_single_for_device [2021-11-12 23:30:25,212 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-12 23:31:33,607 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-12 23:31:33,686 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-12 23:31:33,687 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-12 23:31:33,692 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 11:31:33 BoogieIcfgContainer [2021-11-12 23:31:33,692 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-12 23:31:33,694 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-12 23:31:33,694 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-12 23:31:33,697 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-12 23:31:33,697 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 11:30:15" (1/3) ... [2021-11-12 23:31:33,698 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52a9d510 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 11:31:33, skipping insertion in model container [2021-11-12 23:31:33,698 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:30:21" (2/3) ... [2021-11-12 23:31:33,699 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52a9d510 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 11:31:33, skipping insertion in model container [2021-11-12 23:31:33,699 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 11:31:33" (3/3) ... [2021-11-12 23:31:33,700 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-irda-vlsi_ir.cil.i [2021-11-12 23:31:33,706 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-12 23:31:33,706 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-11-12 23:31:33,773 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-12 23:31:33,781 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 [2021-11-12 23:31:33,781 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-11-12 23:31:33,850 INFO L276 IsEmpty]: Start isEmpty. Operand has 1886 states, 1268 states have (on average 1.2854889589905363) internal successors, (1630), 1294 states have internal predecessors, (1630), 512 states have call successors, (512), 104 states have call predecessors, (512), 103 states have return successors, (505), 502 states have call predecessors, (505), 505 states have call successors, (505) [2021-11-12 23:31:33,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2021-11-12 23:31:33,869 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:31:33,871 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:31:33,871 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)] === [2021-11-12 23:31:33,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:31:33,876 INFO L85 PathProgramCache]: Analyzing trace with hash -2147203978, now seen corresponding path program 1 times [2021-11-12 23:31:33,901 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:31:33,902 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1290379456] [2021-11-12 23:31:33,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:31:33,903 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:31:33,903 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85f966f0-d9d3-4412-863c-5ea2e6668463/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:31:33,906 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85f966f0-d9d3-4412-863c-5ea2e6668463/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:31:33,921 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85f966f0-d9d3-4412-863c-5ea2e6668463/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-12 23:31:43,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:31:43,613 INFO L263 TraceCheckSpWp]: Trace formula consists of 2033 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-12 23:31:43,627 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:31:44,049 INFO L134 CoverageAnalysis]: Checked inductivity of 528 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 495 trivial. 0 not checked. [2021-11-12 23:31:44,049 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:31:44,533 INFO L134 CoverageAnalysis]: Checked inductivity of 528 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 528 trivial. 0 not checked. [2021-11-12 23:31:44,533 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:31:44,534 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1290379456] [2021-11-12 23:31:44,534 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1290379456] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:31:44,534 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:31:44,535 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-12 23:31:44,536 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [188453681] [2021-11-12 23:31:44,539 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:31:44,548 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-12 23:31:44,548 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:31:44,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-12 23:31:44,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 23:31:44,592 INFO L87 Difference]: Start difference. First operand has 1886 states, 1268 states have (on average 1.2854889589905363) internal successors, (1630), 1294 states have internal predecessors, (1630), 512 states have call successors, (512), 104 states have call predecessors, (512), 103 states have return successors, (505), 502 states have call predecessors, (505), 505 states have call successors, (505) Second operand has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 4 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) [2021-11-12 23:31:47,029 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.42s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 23:31:53,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:31:53,316 INFO L93 Difference]: Finished difference Result 7240 states and 10348 transitions. [2021-11-12 23:31:53,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 23:31:53,319 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 4 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) Word has length 149 [2021-11-12 23:31:53,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:31:53,407 INFO L225 Difference]: With dead ends: 7240 [2021-11-12 23:31:53,407 INFO L226 Difference]: Without dead ends: 5362 [2021-11-12 23:31:53,435 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 296 GetRequests, 294 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 23:31:53,439 INFO L933 BasicCegarLoop]: 3583 mSDtfsCounter, 5010 mSDsluCounter, 6427 mSDsCounter, 0 mSdLazyCounter, 1040 mSolverCounterSat, 20 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7466.73ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 5010 SdHoareTripleChecker+Valid, 10010 SdHoareTripleChecker+Invalid, 1061 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 76.63ms SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 1040 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8070.02ms IncrementalHoareTripleChecker+Time [2021-11-12 23:31:53,445 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5010 Valid, 10010 Invalid, 1061 Unknown, 0 Unchecked, 76.63ms Time], IncrementalHoareTripleChecker [20 Valid, 1040 Invalid, 1 Unknown, 0 Unchecked, 8070.02ms Time] [2021-11-12 23:31:53,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5362 states. [2021-11-12 23:31:53,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5362 to 5335. [2021-11-12 23:31:53,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5335 states, 3613 states have (on average 1.275117630777747) internal successors, (4607), 3683 states have internal predecessors, (4607), 1417 states have call successors, (1417), 303 states have call predecessors, (1417), 302 states have return successors, (1413), 1404 states have call predecessors, (1413), 1413 states have call successors, (1413) [2021-11-12 23:31:53,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5335 states to 5335 states and 7437 transitions. [2021-11-12 23:31:53,951 INFO L78 Accepts]: Start accepts. Automaton has 5335 states and 7437 transitions. Word has length 149 [2021-11-12 23:31:53,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:31:53,956 INFO L470 AbstractCegarLoop]: Abstraction has 5335 states and 7437 transitions. [2021-11-12 23:31:53,956 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 4 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) [2021-11-12 23:31:53,956 INFO L276 IsEmpty]: Start isEmpty. Operand 5335 states and 7437 transitions. [2021-11-12 23:31:53,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2021-11-12 23:31:53,968 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:31:53,970 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:31:54,025 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85f966f0-d9d3-4412-863c-5ea2e6668463/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-12 23:31:54,186 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85f966f0-d9d3-4412-863c-5ea2e6668463/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:31:54,187 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)] === [2021-11-12 23:31:54,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:31:54,188 INFO L85 PathProgramCache]: Analyzing trace with hash -1243014584, now seen corresponding path program 1 times [2021-11-12 23:31:54,193 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:31:54,193 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [726520556] [2021-11-12 23:31:54,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:31:54,193 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:31:54,193 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85f966f0-d9d3-4412-863c-5ea2e6668463/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:31:54,195 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85f966f0-d9d3-4412-863c-5ea2e6668463/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:31:54,197 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85f966f0-d9d3-4412-863c-5ea2e6668463/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-12 23:32:03,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:32:03,867 INFO L263 TraceCheckSpWp]: Trace formula consists of 2066 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-12 23:32:03,881 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:32:04,257 INFO L134 CoverageAnalysis]: Checked inductivity of 528 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 495 trivial. 0 not checked. [2021-11-12 23:32:04,257 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:32:04,735 INFO L134 CoverageAnalysis]: Checked inductivity of 528 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 528 trivial. 0 not checked. [2021-11-12 23:32:04,735 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:32:04,736 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [726520556] [2021-11-12 23:32:04,736 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [726520556] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:32:04,736 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:32:04,736 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-12 23:32:04,738 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [92699948] [2021-11-12 23:32:04,738 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:32:04,742 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-12 23:32:04,742 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:32:04,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-12 23:32:04,743 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 23:32:04,743 INFO L87 Difference]: Start difference. First operand 5335 states and 7437 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, (18), 3 states have call predecessors, (18), 3 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) [2021-11-12 23:32:07,140 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 23:32:15,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:32:15,098 INFO L93 Difference]: Finished difference Result 20299 states and 28223 transitions. [2021-11-12 23:32:15,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 23:32:15,099 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, (18), 3 states have call predecessors, (18), 3 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) Word has length 150 [2021-11-12 23:32:15,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:32:15,261 INFO L225 Difference]: With dead ends: 20299 [2021-11-12 23:32:15,261 INFO L226 Difference]: Without dead ends: 14991 [2021-11-12 23:32:15,301 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 298 GetRequests, 296 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 23:32:15,303 INFO L933 BasicCegarLoop]: 3753 mSDtfsCounter, 6186 mSDsluCounter, 3947 mSDsCounter, 0 mSdLazyCounter, 930 mSolverCounterSat, 934 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8671.24ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 6186 SdHoareTripleChecker+Valid, 7700 SdHoareTripleChecker+Invalid, 1865 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 54.39ms SdHoareTripleChecker+Time, 934 IncrementalHoareTripleChecker+Valid, 930 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9513.20ms IncrementalHoareTripleChecker+Time [2021-11-12 23:32:15,307 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6186 Valid, 7700 Invalid, 1865 Unknown, 0 Unchecked, 54.39ms Time], IncrementalHoareTripleChecker [934 Valid, 930 Invalid, 1 Unknown, 0 Unchecked, 9513.20ms Time] [2021-11-12 23:32:15,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14991 states. [2021-11-12 23:32:16,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14991 to 14927. [2021-11-12 23:32:16,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14927 states, 10137 states have (on average 1.270888823123212) internal successors, (12883), 10349 states have internal predecessors, (12883), 3903 states have call successors, (3903), 897 states have call predecessors, (3903), 884 states have return successors, (3941), 3836 states have call predecessors, (3941), 3899 states have call successors, (3941) [2021-11-12 23:32:16,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14927 states to 14927 states and 20727 transitions. [2021-11-12 23:32:16,217 INFO L78 Accepts]: Start accepts. Automaton has 14927 states and 20727 transitions. Word has length 150 [2021-11-12 23:32:16,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:32:16,220 INFO L470 AbstractCegarLoop]: Abstraction has 14927 states and 20727 transitions. [2021-11-12 23:32:16,221 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, (18), 3 states have call predecessors, (18), 3 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) [2021-11-12 23:32:16,221 INFO L276 IsEmpty]: Start isEmpty. Operand 14927 states and 20727 transitions. [2021-11-12 23:32:16,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2021-11-12 23:32:16,226 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:32:16,227 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:32:16,282 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85f966f0-d9d3-4412-863c-5ea2e6668463/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-12 23:32:16,449 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85f966f0-d9d3-4412-863c-5ea2e6668463/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:32:16,450 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)] === [2021-11-12 23:32:16,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:32:16,450 INFO L85 PathProgramCache]: Analyzing trace with hash 645334117, now seen corresponding path program 1 times [2021-11-12 23:32:16,454 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:32:16,454 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1994744264] [2021-11-12 23:32:16,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:32:16,454 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:32:16,454 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85f966f0-d9d3-4412-863c-5ea2e6668463/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:32:16,455 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85f966f0-d9d3-4412-863c-5ea2e6668463/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:32:16,456 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85f966f0-d9d3-4412-863c-5ea2e6668463/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-12 23:32:25,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:32:25,579 INFO L263 TraceCheckSpWp]: Trace formula consists of 2084 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-12 23:32:25,593 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:32:26,086 INFO L134 CoverageAnalysis]: Checked inductivity of 528 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 495 trivial. 0 not checked. [2021-11-12 23:32:26,086 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:32:26,513 INFO L134 CoverageAnalysis]: Checked inductivity of 528 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 528 trivial. 0 not checked. [2021-11-12 23:32:26,513 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:32:26,513 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1994744264] [2021-11-12 23:32:26,513 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1994744264] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:32:26,513 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:32:26,514 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-12 23:32:26,514 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [996166321] [2021-11-12 23:32:26,514 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:32:26,514 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-12 23:32:26,514 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:32:26,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-12 23:32:26,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 23:32:26,515 INFO L87 Difference]: Start difference. First operand 14927 states and 20727 transitions. Second operand has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 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) [2021-11-12 23:32:28,856 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.34s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 23:32:35,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:32:35,250 INFO L93 Difference]: Finished difference Result 56597 states and 78122 transitions. [2021-11-12 23:32:35,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 23:32:35,251 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 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 158 [2021-11-12 23:32:35,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:32:35,589 INFO L225 Difference]: With dead ends: 56597 [2021-11-12 23:32:35,590 INFO L226 Difference]: Without dead ends: 41697 [2021-11-12 23:32:35,705 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 314 GetRequests, 312 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 23:32:35,708 INFO L933 BasicCegarLoop]: 3487 mSDtfsCounter, 4824 mSDsluCounter, 4911 mSDsCounter, 0 mSdLazyCounter, 1015 mSolverCounterSat, 22 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6841.48ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4824 SdHoareTripleChecker+Valid, 8398 SdHoareTripleChecker+Invalid, 1038 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 34.27ms SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 1015 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7431.80ms IncrementalHoareTripleChecker+Time [2021-11-12 23:32:35,709 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4824 Valid, 8398 Invalid, 1038 Unknown, 0 Unchecked, 34.27ms Time], IncrementalHoareTripleChecker [22 Valid, 1015 Invalid, 1 Unknown, 0 Unchecked, 7431.80ms Time] [2021-11-12 23:32:35,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41697 states. [2021-11-12 23:32:38,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41697 to 41621. [2021-11-12 23:32:38,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41621 states, 28263 states have (on average 1.2621094717475143) internal successors, (35671), 28799 states have internal predecessors, (35671), 10737 states have call successors, (10737), 2655 states have call predecessors, (10737), 2618 states have return successors, (10877), 10514 states have call predecessors, (10877), 10733 states have call successors, (10877) [2021-11-12 23:32:38,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41621 states to 41621 states and 57285 transitions. [2021-11-12 23:32:38,513 INFO L78 Accepts]: Start accepts. Automaton has 41621 states and 57285 transitions. Word has length 158 [2021-11-12 23:32:38,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:32:38,515 INFO L470 AbstractCegarLoop]: Abstraction has 41621 states and 57285 transitions. [2021-11-12 23:32:38,515 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 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) [2021-11-12 23:32:38,515 INFO L276 IsEmpty]: Start isEmpty. Operand 41621 states and 57285 transitions. [2021-11-12 23:32:38,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2021-11-12 23:32:38,523 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:32:38,523 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 11, 11, 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] [2021-11-12 23:32:38,573 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85f966f0-d9d3-4412-863c-5ea2e6668463/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (4)] Ended with exit code 0 [2021-11-12 23:32:38,737 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85f966f0-d9d3-4412-863c-5ea2e6668463/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:32:38,737 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)] === [2021-11-12 23:32:38,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:32:38,738 INFO L85 PathProgramCache]: Analyzing trace with hash -1435841413, now seen corresponding path program 1 times [2021-11-12 23:32:38,742 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:32:38,742 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [417791285] [2021-11-12 23:32:38,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:32:38,743 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:32:38,743 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85f966f0-d9d3-4412-863c-5ea2e6668463/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:32:38,743 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85f966f0-d9d3-4412-863c-5ea2e6668463/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:32:38,744 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85f966f0-d9d3-4412-863c-5ea2e6668463/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-12 23:32:48,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:32:49,148 INFO L263 TraceCheckSpWp]: Trace formula consists of 2234 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-12 23:32:49,154 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:32:49,803 INFO L134 CoverageAnalysis]: Checked inductivity of 531 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 498 trivial. 0 not checked. [2021-11-12 23:32:49,803 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:32:50,333 INFO L134 CoverageAnalysis]: Checked inductivity of 531 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 531 trivial. 0 not checked. [2021-11-12 23:32:50,333 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:32:50,334 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [417791285] [2021-11-12 23:32:50,334 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [417791285] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:32:50,334 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:32:50,334 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-12 23:32:50,334 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2128603280] [2021-11-12 23:32:50,334 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:32:50,335 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-12 23:32:50,335 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:32:50,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-12 23:32:50,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 23:32:50,336 INFO L87 Difference]: Start difference. First operand 41621 states and 57285 transitions. Second operand has 4 states, 4 states have (on average 27.0) internal successors, (108), 4 states have internal predecessors, (108), 4 states have call successors, (35), 3 states have call predecessors, (35), 3 states have return successors, (30), 4 states have call predecessors, (30), 4 states have call successors, (30) [2021-11-12 23:32:52,687 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.35s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 23:32:59,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:32:59,984 INFO L93 Difference]: Finished difference Result 100560 states and 137794 transitions. [2021-11-12 23:32:59,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 23:32:59,985 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.0) internal successors, (108), 4 states have internal predecessors, (108), 4 states have call successors, (35), 3 states have call predecessors, (35), 3 states have return successors, (30), 4 states have call predecessors, (30), 4 states have call successors, (30) Word has length 202 [2021-11-12 23:32:59,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:33:00,310 INFO L225 Difference]: With dead ends: 100560 [2021-11-12 23:33:00,311 INFO L226 Difference]: Without dead ends: 58966 [2021-11-12 23:33:00,452 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 402 GetRequests, 400 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 23:33:00,454 INFO L933 BasicCegarLoop]: 3888 mSDtfsCounter, 4159 mSDsluCounter, 4091 mSDsCounter, 0 mSdLazyCounter, 1059 mSolverCounterSat, 41 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6762.23ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4159 SdHoareTripleChecker+Valid, 7979 SdHoareTripleChecker+Invalid, 1101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 28.31ms SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 1059 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7321.32ms IncrementalHoareTripleChecker+Time [2021-11-12 23:33:00,455 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4159 Valid, 7979 Invalid, 1101 Unknown, 0 Unchecked, 28.31ms Time], IncrementalHoareTripleChecker [41 Valid, 1059 Invalid, 1 Unknown, 0 Unchecked, 7321.32ms Time] [2021-11-12 23:33:00,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58966 states. [2021-11-12 23:33:03,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58966 to 58882. [2021-11-12 23:33:03,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58882 states, 40075 states have (on average 1.264154709918902) internal successors, (50661), 40814 states have internal predecessors, (50661), 14685 states have call successors, (14685), 4186 states have call predecessors, (14685), 4119 states have return successors, (14777), 14385 states have call predecessors, (14777), 14681 states have call successors, (14777) [2021-11-12 23:33:03,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58882 states to 58882 states and 80123 transitions. [2021-11-12 23:33:03,580 INFO L78 Accepts]: Start accepts. Automaton has 58882 states and 80123 transitions. Word has length 202 [2021-11-12 23:33:03,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:33:03,581 INFO L470 AbstractCegarLoop]: Abstraction has 58882 states and 80123 transitions. [2021-11-12 23:33:03,582 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.0) internal successors, (108), 4 states have internal predecessors, (108), 4 states have call successors, (35), 3 states have call predecessors, (35), 3 states have return successors, (30), 4 states have call predecessors, (30), 4 states have call successors, (30) [2021-11-12 23:33:03,582 INFO L276 IsEmpty]: Start isEmpty. Operand 58882 states and 80123 transitions. [2021-11-12 23:33:03,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2021-11-12 23:33:03,587 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:33:03,587 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 11, 11, 11, 11, 11, 11, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:33:03,634 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85f966f0-d9d3-4412-863c-5ea2e6668463/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (5)] Ended with exit code 0 [2021-11-12 23:33:03,809 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85f966f0-d9d3-4412-863c-5ea2e6668463/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:33:03,809 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)] === [2021-11-12 23:33:03,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:33:03,810 INFO L85 PathProgramCache]: Analyzing trace with hash -1116867753, now seen corresponding path program 1 times [2021-11-12 23:33:03,814 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:33:03,814 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1711003748] [2021-11-12 23:33:03,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:33:03,814 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:33:03,814 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85f966f0-d9d3-4412-863c-5ea2e6668463/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:33:03,815 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85f966f0-d9d3-4412-863c-5ea2e6668463/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:33:03,816 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85f966f0-d9d3-4412-863c-5ea2e6668463/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-12 23:33:12,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:33:13,152 INFO L263 TraceCheckSpWp]: Trace formula consists of 2107 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-12 23:33:13,159 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:33:14,510 INFO L134 CoverageAnalysis]: Checked inductivity of 625 backedges. 90 proven. 0 refuted. 0 times theorem prover too weak. 535 trivial. 0 not checked. [2021-11-12 23:33:14,510 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:33:15,221 INFO L134 CoverageAnalysis]: Checked inductivity of 625 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 615 trivial. 0 not checked. [2021-11-12 23:33:15,222 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:33:15,222 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1711003748] [2021-11-12 23:33:15,222 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1711003748] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:33:15,222 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:33:15,222 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 3] imperfect sequences [] total 4 [2021-11-12 23:33:15,223 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [538321629] [2021-11-12 23:33:15,223 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:33:15,224 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-12 23:33:15,224 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:33:15,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-12 23:33:15,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 23:33:15,225 INFO L87 Difference]: Start difference. First operand 58882 states and 80123 transitions. Second operand has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 4 states have call successors, (42), 3 states have call predecessors, (42), 3 states have return successors, (40), 4 states have call predecessors, (40), 4 states have call successors, (40) [2021-11-12 23:33:25,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:33:25,393 INFO L93 Difference]: Finished difference Result 170394 states and 231997 transitions. [2021-11-12 23:33:25,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 23:33:25,394 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 4 states have call successors, (42), 3 states have call predecessors, (42), 3 states have return successors, (40), 4 states have call predecessors, (40), 4 states have call successors, (40) Word has length 198 [2021-11-12 23:33:25,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:33:26,226 INFO L225 Difference]: With dead ends: 170394 [2021-11-12 23:33:26,226 INFO L226 Difference]: Without dead ends: 111699 [2021-11-12 23:33:26,435 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 394 GetRequests, 392 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 23:33:26,436 INFO L933 BasicCegarLoop]: 3077 mSDtfsCounter, 6438 mSDsluCounter, 1568 mSDsCounter, 0 mSdLazyCounter, 1017 mSolverCounterSat, 919 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5400.76ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 6438 SdHoareTripleChecker+Valid, 4645 SdHoareTripleChecker+Invalid, 1936 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 25.70ms SdHoareTripleChecker+Time, 919 IncrementalHoareTripleChecker+Valid, 1017 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6121.17ms IncrementalHoareTripleChecker+Time [2021-11-12 23:33:26,436 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6438 Valid, 4645 Invalid, 1936 Unknown, 0 Unchecked, 25.70ms Time], IncrementalHoareTripleChecker [919 Valid, 1017 Invalid, 0 Unknown, 0 Unchecked, 6121.17ms Time] [2021-11-12 23:33:26,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111699 states. [2021-11-12 23:33:31,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111699 to 111673. [2021-11-12 23:33:31,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111673 states, 76316 states have (on average 1.2635620315530165) internal successors, (96430), 77738 states have internal predecessors, (96430), 27430 states have call successors, (27430), 8129 states have call predecessors, (27430), 7924 states have return successors, (27756), 26747 states have call predecessors, (27756), 27426 states have call successors, (27756) [2021-11-12 23:33:32,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111673 states to 111673 states and 151616 transitions. [2021-11-12 23:33:32,042 INFO L78 Accepts]: Start accepts. Automaton has 111673 states and 151616 transitions. Word has length 198 [2021-11-12 23:33:32,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:33:32,043 INFO L470 AbstractCegarLoop]: Abstraction has 111673 states and 151616 transitions. [2021-11-12 23:33:32,043 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 4 states have call successors, (42), 3 states have call predecessors, (42), 3 states have return successors, (40), 4 states have call predecessors, (40), 4 states have call successors, (40) [2021-11-12 23:33:32,043 INFO L276 IsEmpty]: Start isEmpty. Operand 111673 states and 151616 transitions. [2021-11-12 23:33:32,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2021-11-12 23:33:32,049 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:33:32,049 INFO L514 BasicCegarLoop]: trace histogram [16, 16, 12, 12, 12, 12, 12, 12, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:33:32,104 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85f966f0-d9d3-4412-863c-5ea2e6668463/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-12 23:33:32,273 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85f966f0-d9d3-4412-863c-5ea2e6668463/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:33:32,273 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)] === [2021-11-12 23:33:32,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:33:32,274 INFO L85 PathProgramCache]: Analyzing trace with hash -741898650, now seen corresponding path program 1 times [2021-11-12 23:33:32,280 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:33:32,280 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1248444821] [2021-11-12 23:33:32,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:33:32,280 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:33:32,280 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85f966f0-d9d3-4412-863c-5ea2e6668463/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:33:32,283 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85f966f0-d9d3-4412-863c-5ea2e6668463/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:33:32,323 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85f966f0-d9d3-4412-863c-5ea2e6668463/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-12 23:33:41,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:33:41,745 INFO L263 TraceCheckSpWp]: Trace formula consists of 2195 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-12 23:33:41,750 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:33:42,368 INFO L134 CoverageAnalysis]: Checked inductivity of 790 backedges. 232 proven. 0 refuted. 0 times theorem prover too weak. 558 trivial. 0 not checked. [2021-11-12 23:33:42,368 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:33:42,876 INFO L134 CoverageAnalysis]: Checked inductivity of 790 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 780 trivial. 0 not checked. [2021-11-12 23:33:42,876 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:33:42,876 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1248444821] [2021-11-12 23:33:42,876 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1248444821] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:33:42,876 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:33:42,876 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-12 23:33:42,877 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [316969843] [2021-11-12 23:33:42,877 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:33:42,878 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-12 23:33:42,878 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:33:42,878 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-12 23:33:42,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 23:33:42,879 INFO L87 Difference]: Start difference. First operand 111673 states and 151616 transitions. Second operand has 4 states, 4 states have (on average 21.0) internal successors, (84), 4 states have internal predecessors, (84), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2021-11-12 23:33:47,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:33:47,399 INFO L93 Difference]: Finished difference Result 223969 states and 304331 transitions. [2021-11-12 23:33:47,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 23:33:47,400 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.0) internal successors, (84), 4 states have internal predecessors, (84), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) Word has length 221 [2021-11-12 23:33:47,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:33:48,007 INFO L225 Difference]: With dead ends: 223969 [2021-11-12 23:33:48,007 INFO L226 Difference]: Without dead ends: 112483 [2021-11-12 23:33:48,800 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 440 GetRequests, 438 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 23:33:48,802 INFO L933 BasicCegarLoop]: 2592 mSDtfsCounter, 55 mSDsluCounter, 2587 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 249.15ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 5179 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 11.88ms SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 273.11ms IncrementalHoareTripleChecker+Time [2021-11-12 23:33:48,802 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [57 Valid, 5179 Invalid, 28 Unknown, 0 Unchecked, 11.88ms Time], IncrementalHoareTripleChecker [5 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 273.11ms Time] [2021-11-12 23:33:48,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112483 states. [2021-11-12 23:33:53,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112483 to 112483. [2021-11-12 23:33:53,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112483 states, 77072 states have (on average 1.265180610338385) internal successors, (97510), 78494 states have internal predecessors, (97510), 27484 states have call successors, (27484), 8129 states have call predecessors, (27484), 7924 states have return successors, (27810), 26801 states have call predecessors, (27810), 27480 states have call successors, (27810) [2021-11-12 23:33:54,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112483 states to 112483 states and 152804 transitions. [2021-11-12 23:33:54,451 INFO L78 Accepts]: Start accepts. Automaton has 112483 states and 152804 transitions. Word has length 221 [2021-11-12 23:33:54,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:33:54,452 INFO L470 AbstractCegarLoop]: Abstraction has 112483 states and 152804 transitions. [2021-11-12 23:33:54,453 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.0) internal successors, (84), 4 states have internal predecessors, (84), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2021-11-12 23:33:54,453 INFO L276 IsEmpty]: Start isEmpty. Operand 112483 states and 152804 transitions. [2021-11-12 23:33:54,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2021-11-12 23:33:54,461 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:33:54,461 INFO L514 BasicCegarLoop]: trace histogram [16, 16, 12, 12, 12, 12, 12, 12, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:33:54,521 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85f966f0-d9d3-4412-863c-5ea2e6668463/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-12 23:33:54,681 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85f966f0-d9d3-4412-863c-5ea2e6668463/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:33:54,681 INFO L402 AbstractCegarLoop]: === Iteration 7 === 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)] === [2021-11-12 23:33:54,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:33:54,682 INFO L85 PathProgramCache]: Analyzing trace with hash -596465576, now seen corresponding path program 1 times [2021-11-12 23:33:54,687 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:33:54,687 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1642951896] [2021-11-12 23:33:54,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:33:54,687 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:33:54,687 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85f966f0-d9d3-4412-863c-5ea2e6668463/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:33:54,688 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85f966f0-d9d3-4412-863c-5ea2e6668463/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:33:54,689 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85f966f0-d9d3-4412-863c-5ea2e6668463/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-12 23:34:04,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:34:05,064 INFO L263 TraceCheckSpWp]: Trace formula consists of 2203 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 23:34:05,069 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:34:06,925 INFO L134 CoverageAnalysis]: Checked inductivity of 796 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 796 trivial. 0 not checked. [2021-11-12 23:34:06,925 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:34:08,068 INFO L134 CoverageAnalysis]: Checked inductivity of 796 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 796 trivial. 0 not checked. [2021-11-12 23:34:08,069 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:34:08,069 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1642951896] [2021-11-12 23:34:08,069 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1642951896] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:34:08,069 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:34:08,070 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 5] imperfect sequences [] total 7 [2021-11-12 23:34:08,070 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2120428813] [2021-11-12 23:34:08,070 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:34:08,071 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-12 23:34:08,071 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:34:08,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-12 23:34:08,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-12 23:34:08,072 INFO L87 Difference]: Start difference. First operand 112483 states and 152804 transitions. Second operand has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 5 states have internal predecessors, (80), 2 states have call successors, (45), 4 states have call predecessors, (45), 2 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) [2021-11-12 23:34:12,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:34:12,075 INFO L93 Difference]: Finished difference Result 112489 states and 152809 transitions. [2021-11-12 23:34:12,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-12 23:34:12,076 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 5 states have internal predecessors, (80), 2 states have call successors, (45), 4 states have call predecessors, (45), 2 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) Word has length 229 [2021-11-12 23:34:12,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:34:12,661 INFO L225 Difference]: With dead ends: 112489 [2021-11-12 23:34:12,661 INFO L226 Difference]: Without dead ends: 112487 [2021-11-12 23:34:12,719 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 459 GetRequests, 451 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2021-11-12 23:34:12,721 INFO L933 BasicCegarLoop]: 2598 mSDtfsCounter, 2494 mSDsluCounter, 7769 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 124.66ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2506 SdHoareTripleChecker+Valid, 10367 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 24.47ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 132.57ms IncrementalHoareTripleChecker+Time [2021-11-12 23:34:12,721 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2506 Valid, 10367 Invalid, 36 Unknown, 0 Unchecked, 24.47ms Time], IncrementalHoareTripleChecker [1 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 132.57ms Time] [2021-11-12 23:34:12,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112487 states.