./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sis-sis900.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_2511f552-0819-40c3-8eca-1f7ebf881741/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2511f552-0819-40c3-8eca-1f7ebf881741/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_2511f552-0819-40c3-8eca-1f7ebf881741/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2511f552-0819-40c3-8eca-1f7ebf881741/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-ethernet-sis-sis900.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2511f552-0819-40c3-8eca-1f7ebf881741/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_2511f552-0819-40c3-8eca-1f7ebf881741/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 82e959473290e80a4f353bcd3c2747bafa4ce239975e14e29f8e5bf5eff4b01b --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-12 22:54:30,086 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-12 22:54:30,089 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-12 22:54:30,145 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-12 22:54:30,145 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-12 22:54:30,150 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-12 22:54:30,153 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-12 22:54:30,156 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-12 22:54:30,159 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-12 22:54:30,160 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-12 22:54:30,162 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-12 22:54:30,164 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-12 22:54:30,165 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-12 22:54:30,166 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-12 22:54:30,168 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-12 22:54:30,170 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-12 22:54:30,171 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-12 22:54:30,173 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-12 22:54:30,175 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-12 22:54:30,178 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-12 22:54:30,181 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-12 22:54:30,183 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-12 22:54:30,184 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-12 22:54:30,186 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-12 22:54:30,190 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-12 22:54:30,191 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-12 22:54:30,191 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-12 22:54:30,192 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-12 22:54:30,193 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-12 22:54:30,195 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-12 22:54:30,195 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-12 22:54:30,196 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-12 22:54:30,198 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-12 22:54:30,199 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-12 22:54:30,201 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-12 22:54:30,201 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-12 22:54:30,202 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-12 22:54:30,203 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-12 22:54:30,203 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-12 22:54:30,205 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-12 22:54:30,206 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-12 22:54:30,207 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2511f552-0819-40c3-8eca-1f7ebf881741/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-12 22:54:30,251 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-12 22:54:30,256 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-12 22:54:30,258 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-12 22:54:30,258 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-12 22:54:30,259 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-12 22:54:30,259 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-12 22:54:30,259 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-12 22:54:30,259 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-12 22:54:30,260 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-12 22:54:30,260 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-12 22:54:30,261 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-12 22:54:30,261 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-12 22:54:30,262 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-12 22:54:30,262 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-12 22:54:30,262 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-12 22:54:30,262 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-12 22:54:30,263 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-12 22:54:30,264 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-12 22:54:30,264 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-12 22:54:30,264 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-12 22:54:30,264 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-12 22:54:30,265 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-12 22:54:30,265 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-12 22:54:30,265 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-12 22:54:30,265 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-12 22:54:30,265 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-12 22:54:30,266 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-12 22:54:30,266 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-12 22:54:30,266 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 22:54:30,268 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-12 22:54:30,268 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-12 22:54:30,269 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-12 22:54:30,269 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-12 22:54:30,269 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-12 22:54:30,270 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-12 22:54:30,270 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-12 22:54:30,270 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-12 22:54:30,270 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_2511f552-0819-40c3-8eca-1f7ebf881741/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2511f552-0819-40c3-8eca-1f7ebf881741/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 82e959473290e80a4f353bcd3c2747bafa4ce239975e14e29f8e5bf5eff4b01b [2021-11-12 22:54:30,599 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-12 22:54:30,624 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-12 22:54:30,627 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-12 22:54:30,628 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-12 22:54:30,630 INFO L275 PluginConnector]: CDTParser initialized [2021-11-12 22:54:30,631 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2511f552-0819-40c3-8eca-1f7ebf881741/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sis-sis900.cil.i [2021-11-12 22:54:30,705 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2511f552-0819-40c3-8eca-1f7ebf881741/bin/utaipan-vmNK8stdcF/data/d0e791202/c2eb8d9a11b6420f885a99ef5cf4755a/FLAGf88be4143 [2021-11-12 22:54:31,845 INFO L306 CDTParser]: Found 1 translation units. [2021-11-12 22:54:31,846 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2511f552-0819-40c3-8eca-1f7ebf881741/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sis-sis900.cil.i [2021-11-12 22:54:31,944 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2511f552-0819-40c3-8eca-1f7ebf881741/bin/utaipan-vmNK8stdcF/data/d0e791202/c2eb8d9a11b6420f885a99ef5cf4755a/FLAGf88be4143 [2021-11-12 22:54:32,098 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2511f552-0819-40c3-8eca-1f7ebf881741/bin/utaipan-vmNK8stdcF/data/d0e791202/c2eb8d9a11b6420f885a99ef5cf4755a [2021-11-12 22:54:32,102 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-12 22:54:32,104 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-12 22:54:32,109 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-12 22:54:32,109 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-12 22:54:32,115 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-12 22:54:32,117 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 10:54:32" (1/1) ... [2021-11-12 22:54:32,119 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@501f360 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:54:32, skipping insertion in model container [2021-11-12 22:54:32,120 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 10:54:32" (1/1) ... [2021-11-12 22:54:32,130 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-12 22:54:32,367 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 22:54:34,949 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:54:34,951 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:54:36,057 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_2511f552-0819-40c3-8eca-1f7ebf881741/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sis-sis900.cil.i[343367,343380] [2021-11-12 22:54:36,060 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_2511f552-0819-40c3-8eca-1f7ebf881741/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sis-sis900.cil.i[343536,343549] [2021-11-12 22:54:36,061 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_2511f552-0819-40c3-8eca-1f7ebf881741/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sis-sis900.cil.i[343703,343716] [2021-11-12 22:54:36,062 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_2511f552-0819-40c3-8eca-1f7ebf881741/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sis-sis900.cil.i[343871,343884] [2021-11-12 22:54:36,081 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 22:54:36,115 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 22:54:36,116 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@7c6787ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:54:36, skipping insertion in model container [2021-11-12 22:54:36,116 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-12 22:54:36,116 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-12 22:54:36,119 INFO L158 Benchmark]: Toolchain (without parser) took 4013.24ms. Allocated memory is still 138.4MB. Free memory was 108.6MB in the beginning and 60.7MB in the end (delta: 48.0MB). Peak memory consumption was 69.0MB. Max. memory is 16.1GB. [2021-11-12 22:54:36,120 INFO L158 Benchmark]: CDTParser took 0.38ms. Allocated memory is still 94.4MB. Free memory was 72.0MB in the beginning and 72.0MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-12 22:54:36,120 INFO L158 Benchmark]: CACSL2BoogieTranslator took 4007.66ms. Allocated memory is still 138.4MB. Free memory was 108.6MB in the beginning and 60.7MB in the end (delta: 48.0MB). Peak memory consumption was 69.0MB. Max. memory is 16.1GB. [2021-11-12 22:54:36,123 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38ms. Allocated memory is still 94.4MB. Free memory was 72.0MB in the beginning and 72.0MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 4007.66ms. Allocated memory is still 138.4MB. Free memory was 108.6MB in the beginning and 60.7MB in the end (delta: 48.0MB). Peak memory consumption was 69.0MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 6103]: 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_2511f552-0819-40c3-8eca-1f7ebf881741/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2511f552-0819-40c3-8eca-1f7ebf881741/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_2511f552-0819-40c3-8eca-1f7ebf881741/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2511f552-0819-40c3-8eca-1f7ebf881741/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-ethernet-sis-sis900.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2511f552-0819-40c3-8eca-1f7ebf881741/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_2511f552-0819-40c3-8eca-1f7ebf881741/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 82e959473290e80a4f353bcd3c2747bafa4ce239975e14e29f8e5bf5eff4b01b --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-12 22:54:38,886 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-12 22:54:38,889 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-12 22:54:38,928 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-12 22:54:38,929 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-12 22:54:38,931 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-12 22:54:38,934 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-12 22:54:38,937 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-12 22:54:38,940 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-12 22:54:38,942 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-12 22:54:38,943 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-12 22:54:38,945 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-12 22:54:38,946 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-12 22:54:38,948 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-12 22:54:38,950 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-12 22:54:38,952 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-12 22:54:38,954 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-12 22:54:38,955 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-12 22:54:38,966 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-12 22:54:38,969 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-12 22:54:38,972 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-12 22:54:38,973 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-12 22:54:38,975 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-12 22:54:38,977 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-12 22:54:38,982 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-12 22:54:38,982 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-12 22:54:38,983 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-12 22:54:38,985 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-12 22:54:38,986 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-12 22:54:38,987 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-12 22:54:38,988 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-12 22:54:38,989 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-12 22:54:38,991 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-12 22:54:38,992 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-12 22:54:38,994 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-12 22:54:38,994 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-12 22:54:38,996 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-12 22:54:38,996 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-12 22:54:38,997 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-12 22:54:38,998 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-12 22:54:39,000 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-12 22:54:39,001 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2511f552-0819-40c3-8eca-1f7ebf881741/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-12 22:54:39,036 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-12 22:54:39,036 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-12 22:54:39,037 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-12 22:54:39,038 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-12 22:54:39,038 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-12 22:54:39,039 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-12 22:54:39,039 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-12 22:54:39,039 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-12 22:54:39,040 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-12 22:54:39,040 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-12 22:54:39,041 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-12 22:54:39,042 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-12 22:54:39,042 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-12 22:54:39,042 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-12 22:54:39,043 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-12 22:54:39,043 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-12 22:54:39,044 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-12 22:54:39,044 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-12 22:54:39,044 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-12 22:54:39,045 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-12 22:54:39,045 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-12 22:54:39,046 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-12 22:54:39,046 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-12 22:54:39,046 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-12 22:54:39,047 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 22:54:39,047 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-12 22:54:39,048 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-12 22:54:39,048 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-12 22:54:39,048 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-12 22:54:39,049 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-12 22:54:39,049 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-12 22:54:39,049 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-12 22:54:39,050 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-12 22:54:39,050 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_2511f552-0819-40c3-8eca-1f7ebf881741/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2511f552-0819-40c3-8eca-1f7ebf881741/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 82e959473290e80a4f353bcd3c2747bafa4ce239975e14e29f8e5bf5eff4b01b [2021-11-12 22:54:39,483 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-12 22:54:39,514 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-12 22:54:39,517 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-12 22:54:39,519 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-12 22:54:39,520 INFO L275 PluginConnector]: CDTParser initialized [2021-11-12 22:54:39,522 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2511f552-0819-40c3-8eca-1f7ebf881741/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sis-sis900.cil.i [2021-11-12 22:54:39,610 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2511f552-0819-40c3-8eca-1f7ebf881741/bin/utaipan-vmNK8stdcF/data/074a9bc8b/7512821ff70a4f09b06fd31d8dd54567/FLAG385779954 [2021-11-12 22:54:40,771 INFO L306 CDTParser]: Found 1 translation units. [2021-11-12 22:54:40,773 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2511f552-0819-40c3-8eca-1f7ebf881741/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sis-sis900.cil.i [2021-11-12 22:54:40,905 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2511f552-0819-40c3-8eca-1f7ebf881741/bin/utaipan-vmNK8stdcF/data/074a9bc8b/7512821ff70a4f09b06fd31d8dd54567/FLAG385779954 [2021-11-12 22:54:41,025 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2511f552-0819-40c3-8eca-1f7ebf881741/bin/utaipan-vmNK8stdcF/data/074a9bc8b/7512821ff70a4f09b06fd31d8dd54567 [2021-11-12 22:54:41,030 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-12 22:54:41,034 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-12 22:54:41,039 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-12 22:54:41,039 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-12 22:54:41,043 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-12 22:54:41,044 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 10:54:41" (1/1) ... [2021-11-12 22:54:41,045 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@629510a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:54:41, skipping insertion in model container [2021-11-12 22:54:41,046 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 10:54:41" (1/1) ... [2021-11-12 22:54:41,055 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-12 22:54:41,345 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 22:54:44,699 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_2511f552-0819-40c3-8eca-1f7ebf881741/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sis-sis900.cil.i[343367,343380] [2021-11-12 22:54:44,702 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_2511f552-0819-40c3-8eca-1f7ebf881741/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sis-sis900.cil.i[343536,343549] [2021-11-12 22:54:44,703 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_2511f552-0819-40c3-8eca-1f7ebf881741/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sis-sis900.cil.i[343703,343716] [2021-11-12 22:54:44,704 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_2511f552-0819-40c3-8eca-1f7ebf881741/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sis-sis900.cil.i[343871,343884] [2021-11-12 22:54:44,734 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 22:54:44,809 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-12 22:54:44,908 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 22:54:45,388 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2511f552-0819-40c3-8eca-1f7ebf881741/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sis-sis900.cil.i[343367,343380] [2021-11-12 22:54:45,389 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_2511f552-0819-40c3-8eca-1f7ebf881741/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sis-sis900.cil.i[343536,343549] [2021-11-12 22:54:45,390 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_2511f552-0819-40c3-8eca-1f7ebf881741/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sis-sis900.cil.i[343703,343716] [2021-11-12 22:54:45,390 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_2511f552-0819-40c3-8eca-1f7ebf881741/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sis-sis900.cil.i[343871,343884] [2021-11-12 22:54:45,401 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 22:54:45,464 INFO L203 MainTranslator]: Completed pre-run [2021-11-12 22:54:46,006 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_2511f552-0819-40c3-8eca-1f7ebf881741/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sis-sis900.cil.i[343367,343380] [2021-11-12 22:54:46,007 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_2511f552-0819-40c3-8eca-1f7ebf881741/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sis-sis900.cil.i[343536,343549] [2021-11-12 22:54:46,008 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_2511f552-0819-40c3-8eca-1f7ebf881741/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sis-sis900.cil.i[343703,343716] [2021-11-12 22:54:46,008 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_2511f552-0819-40c3-8eca-1f7ebf881741/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sis-sis900.cil.i[343871,343884] [2021-11-12 22:54:46,020 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 22:54:46,406 INFO L208 MainTranslator]: Completed translation [2021-11-12 22:54:46,407 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:54:46 WrapperNode [2021-11-12 22:54:46,407 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-12 22:54:46,409 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-12 22:54:46,413 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-12 22:54:46,414 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-12 22:54:46,423 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:54:46" (1/1) ... [2021-11-12 22:54:46,597 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:54:46" (1/1) ... [2021-11-12 22:54:46,847 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-12 22:54:46,848 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-12 22:54:46,850 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-12 22:54:46,850 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-12 22:54:46,861 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:54:46" (1/1) ... [2021-11-12 22:54:46,862 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:54:46" (1/1) ... [2021-11-12 22:54:46,921 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:54:46" (1/1) ... [2021-11-12 22:54:46,935 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:54:46" (1/1) ... [2021-11-12 22:54:47,146 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:54:46" (1/1) ... [2021-11-12 22:54:47,261 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:54:46" (1/1) ... [2021-11-12 22:54:47,401 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:54:46" (1/1) ... [2021-11-12 22:54:47,451 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-12 22:54:47,452 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-12 22:54:47,452 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-12 22:54:47,456 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-12 22:54:47,457 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:54:46" (1/1) ... [2021-11-12 22:54:47,465 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 22:54:47,478 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2511f552-0819-40c3-8eca-1f7ebf881741/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 22:54:47,491 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2511f552-0819-40c3-8eca-1f7ebf881741/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-12 22:54:47,512 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2511f552-0819-40c3-8eca-1f7ebf881741/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-12 22:54:47,554 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_init_rxfilter [2021-11-12 22:54:47,555 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_init_rxfilter [2021-11-12 22:54:47,555 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_write [2021-11-12 22:54:47,555 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_write [2021-11-12 22:54:47,555 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2021-11-12 22:54:47,555 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2021-11-12 22:54:47,556 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-12 22:54:47,556 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-12 22:54:47,556 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2021-11-12 22:54:47,557 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2021-11-12 22:54:47,557 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-11-12 22:54:47,557 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-11-12 22:54:47,557 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-12 22:54:47,557 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-12 22:54:47,557 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-11-12 22:54:47,558 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-11-12 22:54:47,558 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2021-11-12 22:54:47,558 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2021-11-12 22:54:47,558 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-11-12 22:54:47,558 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-11-12 22:54:47,558 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_on [2021-11-12 22:54:47,559 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_on [2021-11-12 22:54:47,559 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_default_phy [2021-11-12 22:54:47,559 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_default_phy [2021-11-12 22:54:47,559 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite8 [2021-11-12 22:54:47,559 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite8 [2021-11-12 22:54:47,560 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irq_75 [2021-11-12 22:54:47,560 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irq_75 [2021-11-12 22:54:47,560 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_66 [2021-11-12 22:54:47,560 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_66 [2021-11-12 22:54:47,561 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32 [2021-11-12 22:54:47,561 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32 [2021-11-12 22:54:47,561 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2021-11-12 22:54:47,561 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2021-11-12 22:54:47,562 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_check_mode [2021-11-12 22:54:47,562 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_check_mode [2021-11-12 22:54:47,562 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2021-11-12 22:54:47,562 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2021-11-12 22:54:47,562 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-12 22:54:47,563 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-12 22:54:47,563 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2021-11-12 22:54:47,563 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2021-11-12 22:54:47,564 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2021-11-12 22:54:47,564 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2021-11-12 22:54:47,565 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2021-11-12 22:54:47,566 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2021-11-12 22:54:47,566 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-12 22:54:47,566 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-12 22:54:47,566 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_remove [2021-11-12 22:54:47,566 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_remove [2021-11-12 22:54:47,567 INFO L130 BoogieDeclarations]: Found specification of procedure sis630_set_eq [2021-11-12 22:54:47,567 INFO L138 BoogieDeclarations]: Found implementation of procedure sis630_set_eq [2021-11-12 22:54:47,567 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_device [2021-11-12 22:54:47,568 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_device [2021-11-12 22:54:47,568 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2021-11-12 22:54:47,568 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2021-11-12 22:54:47,568 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-12 22:54:47,568 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2021-11-12 22:54:47,569 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-12 22:54:47,569 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-12 22:54:47,569 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-12 22:54:47,570 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_sis900_cleanup_module_14_2 [2021-11-12 22:54:47,570 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_sis900_cleanup_module_14_2 [2021-11-12 22:54:47,570 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_init_tx_ring [2021-11-12 22:54:47,571 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_init_tx_ring [2021-11-12 22:54:47,571 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-11-12 22:54:47,571 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-11-12 22:54:47,572 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_lock_of_sis900_private [2021-11-12 22:54:47,572 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_lock_of_sis900_private [2021-11-12 22:54:47,572 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-11-12 22:54:47,572 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-11-12 22:54:47,572 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-12 22:54:47,572 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-12 22:54:47,573 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_set_mode [2021-11-12 22:54:47,573 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_set_mode [2021-11-12 22:54:47,573 INFO L130 BoogieDeclarations]: Found specification of procedure set_rx_mode [2021-11-12 22:54:47,574 INFO L138 BoogieDeclarations]: Found implementation of procedure set_rx_mode [2021-11-12 22:54:47,574 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_sis900_private [2021-11-12 22:54:47,574 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_sis900_private [2021-11-12 22:54:47,575 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-11-12 22:54:47,575 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-11-12 22:54:47,575 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2021-11-12 22:54:47,576 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2021-11-12 22:54:47,576 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-11-12 22:54:47,577 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-11-12 22:54:47,577 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-11-12 22:54:47,577 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-11-12 22:54:47,577 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2021-11-12 22:54:47,577 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2021-11-12 22:54:47,577 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_interrupt [2021-11-12 22:54:47,578 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_interrupt [2021-11-12 22:54:47,578 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_reset_phy [2021-11-12 22:54:47,578 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_reset_phy [2021-11-12 22:54:47,578 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2021-11-12 22:54:47,578 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2021-11-12 22:54:47,579 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-12 22:54:47,579 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2021-11-12 22:54:47,579 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2021-11-12 22:54:47,580 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2021-11-12 22:54:47,580 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2021-11-12 22:54:47,580 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-12 22:54:47,580 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-12 22:54:47,580 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-12 22:54:47,581 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_dword [2021-11-12 22:54:47,583 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_dword [2021-11-12 22:54:47,586 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_open [2021-11-12 22:54:47,587 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_open [2021-11-12 22:54:47,587 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-12 22:54:47,587 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-12 22:54:47,588 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_nway_reset [2021-11-12 22:54:47,589 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_nway_reset [2021-11-12 22:54:47,589 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2021-11-12 22:54:47,590 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2021-11-12 22:54:47,591 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-11-12 22:54:47,596 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-11-12 22:54:47,596 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2021-11-12 22:54:47,596 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2021-11-12 22:54:47,596 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_read [2021-11-12 22:54:47,597 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_read [2021-11-12 22:54:47,597 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-12 22:54:47,597 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-12 22:54:47,597 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-12 22:54:47,598 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_close [2021-11-12 22:54:47,598 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_close [2021-11-12 22:54:47,598 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-12 22:54:47,598 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-12 22:54:47,598 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2021-11-12 22:54:47,599 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-12 22:54:47,599 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-12 22:54:47,599 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-11-12 22:54:47,599 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-11-12 22:54:47,599 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2021-11-12 22:54:47,600 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2021-11-12 22:54:47,600 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2021-11-12 22:54:47,600 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2021-11-12 22:54:47,600 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_reset [2021-11-12 22:54:47,600 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_reset [2021-11-12 22:54:47,600 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2021-11-12 22:54:47,601 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2021-11-12 22:54:47,601 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-11-12 22:54:47,601 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-11-12 22:54:47,601 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2021-11-12 22:54:47,601 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2021-11-12 22:54:47,601 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2021-11-12 22:54:47,602 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2021-11-12 22:54:47,602 INFO L130 BoogieDeclarations]: Found specification of procedure read_eeprom [2021-11-12 22:54:47,602 INFO L138 BoogieDeclarations]: Found implementation of procedure read_eeprom [2021-11-12 22:54:47,602 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2021-11-12 22:54:47,602 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2021-11-12 22:54:47,603 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-12 22:54:47,603 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2021-11-12 22:54:47,603 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2021-11-12 22:54:47,603 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_irq_74 [2021-11-12 22:54:47,603 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_irq_74 [2021-11-12 22:54:47,603 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-12 22:54:47,604 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2021-11-12 22:54:47,604 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2021-11-12 22:54:47,604 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_init_rx_ring [2021-11-12 22:54:47,605 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_init_rx_ring [2021-11-12 22:54:47,605 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-12 22:54:47,605 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-12 22:54:47,605 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2021-11-12 22:54:47,605 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-12 22:54:47,606 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-12 22:54:47,606 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_byte [2021-11-12 22:54:47,606 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_byte [2021-11-12 22:54:47,606 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-11-12 22:54:47,606 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-11-12 22:54:47,607 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-12 22:54:47,607 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-12 22:54:47,607 INFO L130 BoogieDeclarations]: Found specification of procedure eth_hw_addr_random [2021-11-12 22:54:47,607 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_hw_addr_random [2021-11-12 22:54:47,607 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_irq [2021-11-12 22:54:47,607 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_irq [2021-11-12 22:54:47,608 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_dword [2021-11-12 22:54:47,608 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_dword [2021-11-12 22:54:47,608 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_poll [2021-11-12 22:54:47,608 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_poll [2021-11-12 22:54:47,608 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2021-11-12 22:54:47,609 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2021-11-12 22:54:47,609 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-11-12 22:54:47,609 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-11-12 22:54:47,609 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_mapping_error [2021-11-12 22:54:47,609 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_mapping_error [2021-11-12 22:54:47,610 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-11-12 22:54:47,610 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-11-12 22:54:47,610 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-12 22:54:47,610 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-12 22:54:47,610 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_resume [2021-11-12 22:54:47,610 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_resume [2021-11-12 22:54:47,611 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-12 22:54:47,611 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-12 22:54:47,611 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dev_put [2021-11-12 22:54:47,611 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dev_put [2021-11-12 22:54:47,611 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_idle [2021-11-12 22:54:47,612 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_idle [2021-11-12 22:54:47,612 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_tx_timeout [2021-11-12 22:54:47,612 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_tx_timeout [2021-11-12 22:54:47,612 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-12 22:54:47,612 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-12 22:54:47,612 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2021-11-12 22:54:47,613 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2021-11-12 22:54:47,613 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2021-11-12 22:54:47,613 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2021-11-12 22:54:47,613 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-11-12 22:54:47,613 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-11-12 22:54:49,210 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-12 22:55:26,850 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-12 22:55:26,956 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-12 22:55:26,957 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-12 22:55:26,963 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 10:55:26 BoogieIcfgContainer [2021-11-12 22:55:26,963 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-12 22:55:26,966 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-12 22:55:26,966 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-12 22:55:26,969 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-12 22:55:26,971 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 10:54:41" (1/3) ... [2021-11-12 22:55:26,974 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@dca020 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 10:55:26, skipping insertion in model container [2021-11-12 22:55:26,974 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:54:46" (2/3) ... [2021-11-12 22:55:26,975 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@dca020 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 10:55:26, skipping insertion in model container [2021-11-12 22:55:26,975 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 10:55:26" (3/3) ... [2021-11-12 22:55:26,977 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sis-sis900.cil.i [2021-11-12 22:55:26,987 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-12 22:55:26,987 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-11-12 22:55:27,088 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-12 22:55:27,097 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 22:55:27,098 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-11-12 22:55:27,187 INFO L276 IsEmpty]: Start isEmpty. Operand has 1960 states, 1339 states have (on average 1.2763256161314414) internal successors, (1709), 1366 states have internal predecessors, (1709), 526 states have call successors, (526), 93 states have call predecessors, (526), 92 states have return successors, (520), 512 states have call predecessors, (520), 520 states have call successors, (520) [2021-11-12 22:55:27,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2021-11-12 22:55:27,220 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:55:27,221 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 22:55:27,221 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 22:55:27,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:55:27,233 INFO L85 PathProgramCache]: Analyzing trace with hash -511834341, now seen corresponding path program 1 times [2021-11-12 22:55:27,251 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:55:27,251 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [484155036] [2021-11-12 22:55:27,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:55:27,257 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:55:27,257 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2511f552-0819-40c3-8eca-1f7ebf881741/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:55:27,260 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2511f552-0819-40c3-8eca-1f7ebf881741/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:55:27,306 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2511f552-0819-40c3-8eca-1f7ebf881741/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-12 22:55:29,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:55:29,565 INFO L263 TraceCheckSpWp]: Trace formula consists of 1280 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-12 22:55:29,579 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:55:30,347 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 22:55:30,347 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:55:30,862 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 22:55:30,863 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:55:30,863 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [484155036] [2021-11-12 22:55:30,864 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [484155036] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:55:30,864 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:55:30,864 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-12 22:55:30,866 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [355419934] [2021-11-12 22:55:30,868 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:55:30,877 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-12 22:55:30,877 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:55:30,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-12 22:55:30,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 22:55:30,932 INFO L87 Difference]: Start difference. First operand has 1960 states, 1339 states have (on average 1.2763256161314414) internal successors, (1709), 1366 states have internal predecessors, (1709), 526 states have call successors, (526), 93 states have call predecessors, (526), 92 states have return successors, (520), 512 states have call predecessors, (520), 520 states have call successors, (520) 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 22:55:33,166 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:55:41,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:55:41,363 INFO L93 Difference]: Finished difference Result 7601 states and 10869 transitions. [2021-11-12 22:55:41,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 22:55:41,370 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 22:55:41,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:55:41,455 INFO L225 Difference]: With dead ends: 7601 [2021-11-12 22:55:41,455 INFO L226 Difference]: Without dead ends: 5651 [2021-11-12 22:55:41,481 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 22:55:41,485 INFO L933 BasicCegarLoop]: 3739 mSDtfsCounter, 6909 mSDsluCounter, 4272 mSDsCounter, 0 mSdLazyCounter, 1070 mSolverCounterSat, 985 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8542.86ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 6909 SdHoareTripleChecker+Valid, 8011 SdHoareTripleChecker+Invalid, 2056 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 84.45ms SdHoareTripleChecker+Time, 985 IncrementalHoareTripleChecker+Valid, 1070 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9634.06ms IncrementalHoareTripleChecker+Time [2021-11-12 22:55:41,486 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6909 Valid, 8011 Invalid, 2056 Unknown, 0 Unchecked, 84.45ms Time], IncrementalHoareTripleChecker [985 Valid, 1070 Invalid, 1 Unknown, 0 Unchecked, 9634.06ms Time] [2021-11-12 22:55:41,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5651 states. [2021-11-12 22:55:41,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5651 to 5625. [2021-11-12 22:55:42,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5625 states, 3879 states have (on average 1.2724929105439546) internal successors, (4936), 3956 states have internal predecessors, (4936), 1474 states have call successors, (1474), 270 states have call predecessors, (1474), 269 states have return successors, (1470), 1446 states have call predecessors, (1470), 1470 states have call successors, (1470) [2021-11-12 22:55:42,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5625 states to 5625 states and 7880 transitions. [2021-11-12 22:55:42,093 INFO L78 Accepts]: Start accepts. Automaton has 5625 states and 7880 transitions. Word has length 149 [2021-11-12 22:55:42,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:55:42,098 INFO L470 AbstractCegarLoop]: Abstraction has 5625 states and 7880 transitions. [2021-11-12 22:55:42,099 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 22:55:42,099 INFO L276 IsEmpty]: Start isEmpty. Operand 5625 states and 7880 transitions. [2021-11-12 22:55:42,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2021-11-12 22:55:42,111 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:55:42,112 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] [2021-11-12 22:55:42,156 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2511f552-0819-40c3-8eca-1f7ebf881741/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-12 22:55:42,325 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2511f552-0819-40c3-8eca-1f7ebf881741/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:55:42,326 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 22:55:42,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:55:42,327 INFO L85 PathProgramCache]: Analyzing trace with hash 474246430, now seen corresponding path program 1 times [2021-11-12 22:55:42,331 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:55:42,334 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2100375281] [2021-11-12 22:55:42,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:55:42,335 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:55:42,335 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2511f552-0819-40c3-8eca-1f7ebf881741/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:55:42,336 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2511f552-0819-40c3-8eca-1f7ebf881741/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:55:42,380 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2511f552-0819-40c3-8eca-1f7ebf881741/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-12 22:55:44,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:55:44,332 INFO L263 TraceCheckSpWp]: Trace formula consists of 1329 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-12 22:55:44,353 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:55:44,786 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 22:55:44,786 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:55:45,235 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 22:55:45,235 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:55:45,235 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2100375281] [2021-11-12 22:55:45,236 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2100375281] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:55:45,236 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:55:45,236 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-12 22:55:45,236 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1422148155] [2021-11-12 22:55:45,237 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:55:45,239 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-12 22:55:45,239 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:55:45,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-12 22:55:45,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 22:55:45,240 INFO L87 Difference]: Start difference. First operand 5625 states and 7880 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, (21), 3 states have call predecessors, (21), 3 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) [2021-11-12 22:55:47,473 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:55:56,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:55:56,172 INFO L93 Difference]: Finished difference Result 22017 states and 30881 transitions. [2021-11-12 22:55:56,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 22:55:56,173 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, (21), 3 states have call predecessors, (21), 3 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) Word has length 153 [2021-11-12 22:55:56,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:55:56,341 INFO L225 Difference]: With dead ends: 22017 [2021-11-12 22:55:56,341 INFO L226 Difference]: Without dead ends: 16419 [2021-11-12 22:55:56,394 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 304 GetRequests, 302 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 22:55:56,396 INFO L933 BasicCegarLoop]: 3730 mSDtfsCounter, 6913 mSDsluCounter, 4229 mSDsCounter, 0 mSdLazyCounter, 1022 mSolverCounterSat, 1024 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8627.67ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 6913 SdHoareTripleChecker+Valid, 7959 SdHoareTripleChecker+Invalid, 2047 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 64.73ms SdHoareTripleChecker+Time, 1024 IncrementalHoareTripleChecker+Valid, 1022 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9679.51ms IncrementalHoareTripleChecker+Time [2021-11-12 22:55:56,397 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6913 Valid, 7959 Invalid, 2047 Unknown, 0 Unchecked, 64.73ms Time], IncrementalHoareTripleChecker [1024 Valid, 1022 Invalid, 1 Unknown, 0 Unchecked, 9679.51ms Time] [2021-11-12 22:55:56,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16419 states. [2021-11-12 22:55:57,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16419 to 16357. [2021-11-12 22:55:57,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16357 states, 11299 states have (on average 1.2751570935481016) internal successors, (14408), 11538 states have internal predecessors, (14408), 4262 states have call successors, (4262), 806 states have call predecessors, (4262), 793 states have return successors, (4276), 4150 states have call predecessors, (4276), 4258 states have call successors, (4276) [2021-11-12 22:55:57,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16357 states to 16357 states and 22946 transitions. [2021-11-12 22:55:57,845 INFO L78 Accepts]: Start accepts. Automaton has 16357 states and 22946 transitions. Word has length 153 [2021-11-12 22:55:57,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:55:57,847 INFO L470 AbstractCegarLoop]: Abstraction has 16357 states and 22946 transitions. [2021-11-12 22:55:57,848 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, (21), 3 states have call predecessors, (21), 3 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) [2021-11-12 22:55:57,848 INFO L276 IsEmpty]: Start isEmpty. Operand 16357 states and 22946 transitions. [2021-11-12 22:55:57,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2021-11-12 22:55:57,854 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:55:57,855 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] [2021-11-12 22:55:57,898 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2511f552-0819-40c3-8eca-1f7ebf881741/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-12 22:55:58,080 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2511f552-0819-40c3-8eca-1f7ebf881741/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:55:58,080 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 22:55:58,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:55:58,081 INFO L85 PathProgramCache]: Analyzing trace with hash 501804944, now seen corresponding path program 1 times [2021-11-12 22:55:58,083 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:55:58,083 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1201989544] [2021-11-12 22:55:58,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:55:58,084 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:55:58,084 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2511f552-0819-40c3-8eca-1f7ebf881741/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:55:58,087 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2511f552-0819-40c3-8eca-1f7ebf881741/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:55:58,130 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2511f552-0819-40c3-8eca-1f7ebf881741/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-12 22:56:00,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:56:00,111 INFO L263 TraceCheckSpWp]: Trace formula consists of 1318 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-12 22:56:00,116 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:56:00,536 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 22:56:00,536 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:56:00,994 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 22:56:00,994 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:56:00,994 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1201989544] [2021-11-12 22:56:00,995 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1201989544] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:56:00,995 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:56:00,995 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-12 22:56:00,995 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1722068370] [2021-11-12 22:56:00,995 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:56:00,996 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-12 22:56:00,996 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:56:00,997 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-12 22:56:00,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-12 22:56:00,997 INFO L87 Difference]: Start difference. First operand 16357 states and 22946 transitions. Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 3 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2021-11-12 22:56:03,182 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:56:05,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:56:05,006 INFO L93 Difference]: Finished difference Result 46362 states and 65063 transitions. [2021-11-12 22:56:05,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-12 22:56:05,008 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 3 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 156 [2021-11-12 22:56:05,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:56:05,293 INFO L225 Difference]: With dead ends: 46362 [2021-11-12 22:56:05,293 INFO L226 Difference]: Without dead ends: 30032 [2021-11-12 22:56:05,410 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 310 GetRequests, 309 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-12 22:56:05,411 INFO L933 BasicCegarLoop]: 3177 mSDtfsCounter, 2268 mSDsluCounter, 2627 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2361.31ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2268 SdHoareTripleChecker+Valid, 5804 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 24.06ms SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2418.54ms IncrementalHoareTripleChecker+Time [2021-11-12 22:56:05,412 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2268 Valid, 5804 Invalid, 77 Unknown, 0 Unchecked, 24.06ms Time], IncrementalHoareTripleChecker [7 Valid, 69 Invalid, 1 Unknown, 0 Unchecked, 2418.54ms Time] [2021-11-12 22:56:05,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30032 states. [2021-11-12 22:56:07,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30032 to 29995. [2021-11-12 22:56:07,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29995 states, 20527 states have (on average 1.2742241925269158) internal successors, (26156), 20985 states have internal predecessors, (26156), 7937 states have call successors, (7937), 1556 states have call predecessors, (7937), 1528 states have return successors, (7972), 7717 states have call predecessors, (7972), 7933 states have call successors, (7972) [2021-11-12 22:56:07,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29995 states to 29995 states and 42065 transitions. [2021-11-12 22:56:07,757 INFO L78 Accepts]: Start accepts. Automaton has 29995 states and 42065 transitions. Word has length 156 [2021-11-12 22:56:07,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:56:07,760 INFO L470 AbstractCegarLoop]: Abstraction has 29995 states and 42065 transitions. [2021-11-12 22:56:07,760 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 3 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2021-11-12 22:56:07,760 INFO L276 IsEmpty]: Start isEmpty. Operand 29995 states and 42065 transitions. [2021-11-12 22:56:07,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2021-11-12 22:56:07,765 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:56:07,766 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] [2021-11-12 22:56:07,811 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2511f552-0819-40c3-8eca-1f7ebf881741/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-12 22:56:07,980 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2511f552-0819-40c3-8eca-1f7ebf881741/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:56:07,980 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 22:56:07,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:56:07,981 INFO L85 PathProgramCache]: Analyzing trace with hash -585811610, now seen corresponding path program 1 times [2021-11-12 22:56:08,148 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:56:08,148 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [967813529] [2021-11-12 22:56:08,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:56:08,149 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:56:08,149 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2511f552-0819-40c3-8eca-1f7ebf881741/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:56:08,180 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2511f552-0819-40c3-8eca-1f7ebf881741/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:56:08,225 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2511f552-0819-40c3-8eca-1f7ebf881741/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-12 22:56:10,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:56:10,388 INFO L263 TraceCheckSpWp]: Trace formula consists of 1401 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-12 22:56:10,396 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:56:10,824 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 22:56:10,824 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:56:11,340 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 22:56:11,340 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:56:11,341 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [967813529] [2021-11-12 22:56:11,341 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [967813529] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:56:11,341 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:56:11,342 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-12 22:56:11,342 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [710945826] [2021-11-12 22:56:11,342 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:56:11,343 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-12 22:56:11,343 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:56:11,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-12 22:56:11,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 22:56:11,345 INFO L87 Difference]: Start difference. First operand 29995 states and 42065 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, (23), 3 states have call predecessors, (23), 3 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) [2021-11-12 22:56:13,564 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:56:21,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:56:21,392 INFO L93 Difference]: Finished difference Result 70383 states and 98271 transitions. [2021-11-12 22:56:21,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 22:56:21,394 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, (23), 3 states have call predecessors, (23), 3 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) Word has length 165 [2021-11-12 22:56:21,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:56:21,735 INFO L225 Difference]: With dead ends: 70383 [2021-11-12 22:56:21,735 INFO L226 Difference]: Without dead ends: 40415 [2021-11-12 22:56:21,904 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 328 GetRequests, 326 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 22:56:21,907 INFO L933 BasicCegarLoop]: 4296 mSDtfsCounter, 4705 mSDsluCounter, 3312 mSDsCounter, 0 mSdLazyCounter, 1105 mSolverCounterSat, 461 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7198.12ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4705 SdHoareTripleChecker+Valid, 7608 SdHoareTripleChecker+Invalid, 1567 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 39.85ms SdHoareTripleChecker+Time, 461 IncrementalHoareTripleChecker+Valid, 1105 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8027.70ms IncrementalHoareTripleChecker+Time [2021-11-12 22:56:21,908 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4705 Valid, 7608 Invalid, 1567 Unknown, 0 Unchecked, 39.85ms Time], IncrementalHoareTripleChecker [461 Valid, 1105 Invalid, 1 Unknown, 0 Unchecked, 8027.70ms Time] [2021-11-12 22:56:21,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40415 states. [2021-11-12 22:56:24,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40415 to 40345. [2021-11-12 22:56:24,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40345 states, 28044 states have (on average 1.2770646127513907) internal successors, (35814), 28566 states have internal predecessors, (35814), 10051 states have call successors, (10051), 2296 states have call predecessors, (10051), 2247 states have return successors, (10073), 9796 states have call predecessors, (10073), 10047 states have call successors, (10073) [2021-11-12 22:56:24,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40345 states to 40345 states and 55938 transitions. [2021-11-12 22:56:24,803 INFO L78 Accepts]: Start accepts. Automaton has 40345 states and 55938 transitions. Word has length 165 [2021-11-12 22:56:24,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:56:24,804 INFO L470 AbstractCegarLoop]: Abstraction has 40345 states and 55938 transitions. [2021-11-12 22:56:24,804 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, (23), 3 states have call predecessors, (23), 3 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) [2021-11-12 22:56:24,804 INFO L276 IsEmpty]: Start isEmpty. Operand 40345 states and 55938 transitions. [2021-11-12 22:56:24,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2021-11-12 22:56:24,810 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:56:24,811 INFO L514 BasicCegarLoop]: trace histogram [15, 15, 11, 11, 11, 11, 11, 11, 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] [2021-11-12 22:56:24,847 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2511f552-0819-40c3-8eca-1f7ebf881741/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-12 22:56:25,032 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2511f552-0819-40c3-8eca-1f7ebf881741/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:56:25,032 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 22:56:25,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:56:25,033 INFO L85 PathProgramCache]: Analyzing trace with hash -1098294467, now seen corresponding path program 1 times [2021-11-12 22:56:25,035 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:56:25,035 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1411792142] [2021-11-12 22:56:25,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:56:25,036 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:56:25,036 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2511f552-0819-40c3-8eca-1f7ebf881741/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:56:25,037 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2511f552-0819-40c3-8eca-1f7ebf881741/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:56:25,092 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2511f552-0819-40c3-8eca-1f7ebf881741/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-12 22:56:27,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:56:27,263 INFO L263 TraceCheckSpWp]: Trace formula consists of 1405 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 22:56:27,272 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:56:28,480 INFO L134 CoverageAnalysis]: Checked inductivity of 679 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 679 trivial. 0 not checked. [2021-11-12 22:56:28,480 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:56:29,402 INFO L134 CoverageAnalysis]: Checked inductivity of 679 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 679 trivial. 0 not checked. [2021-11-12 22:56:29,403 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:56:29,403 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1411792142] [2021-11-12 22:56:29,403 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1411792142] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:56:29,403 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:56:29,404 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 5] imperfect sequences [] total 7 [2021-11-12 22:56:29,404 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1563859262] [2021-11-12 22:56:29,404 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:56:29,405 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-12 22:56:29,406 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:56:29,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-12 22:56:29,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-12 22:56:29,407 INFO L87 Difference]: Start difference. First operand 40345 states and 55938 transitions. Second operand has 7 states, 7 states have (on average 10.0) internal successors, (70), 5 states have internal predecessors, (70), 2 states have call successors, (43), 4 states have call predecessors, (43), 2 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) [2021-11-12 22:56:31,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:56:31,634 INFO L93 Difference]: Finished difference Result 40351 states and 55943 transitions. [2021-11-12 22:56:31,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-12 22:56:31,635 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.0) internal successors, (70), 5 states have internal predecessors, (70), 2 states have call successors, (43), 4 states have call predecessors, (43), 2 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) Word has length 205 [2021-11-12 22:56:31,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:56:31,896 INFO L225 Difference]: With dead ends: 40351 [2021-11-12 22:56:31,897 INFO L226 Difference]: Without dead ends: 40349 [2021-11-12 22:56:31,926 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 411 GetRequests, 403 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 22:56:31,927 INFO L933 BasicCegarLoop]: 2722 mSDtfsCounter, 2629 mSDsluCounter, 10863 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 89.53ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2640 SdHoareTripleChecker+Valid, 13585 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 47.14ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 98.60ms IncrementalHoareTripleChecker+Time [2021-11-12 22:56:31,928 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2640 Valid, 13585 Invalid, 37 Unknown, 0 Unchecked, 47.14ms Time], IncrementalHoareTripleChecker [1 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 98.60ms Time] [2021-11-12 22:56:32,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40349 states. [2021-11-12 22:56:34,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40349 to 40349. [2021-11-12 22:56:34,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40349 states, 28047 states have (on average 1.277034977002888) internal successors, (35817), 28569 states have internal predecessors, (35817), 10051 states have call successors, (10051), 2297 states have call predecessors, (10051), 2248 states have return successors, (10073), 9796 states have call predecessors, (10073), 10047 states have call successors, (10073) [2021-11-12 22:56:35,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40349 states to 40349 states and 55941 transitions. [2021-11-12 22:56:35,104 INFO L78 Accepts]: Start accepts. Automaton has 40349 states and 55941 transitions. Word has length 205 [2021-11-12 22:56:35,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:56:35,105 INFO L470 AbstractCegarLoop]: Abstraction has 40349 states and 55941 transitions. [2021-11-12 22:56:35,105 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.0) internal successors, (70), 5 states have internal predecessors, (70), 2 states have call successors, (43), 4 states have call predecessors, (43), 2 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) [2021-11-12 22:56:35,105 INFO L276 IsEmpty]: Start isEmpty. Operand 40349 states and 55941 transitions. [2021-11-12 22:56:35,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2021-11-12 22:56:35,116 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:56:35,116 INFO L514 BasicCegarLoop]: trace histogram [15, 15, 11, 11, 11, 11, 11, 11, 4, 4, 4, 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] [2021-11-12 22:56:35,161 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2511f552-0819-40c3-8eca-1f7ebf881741/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-12 22:56:35,340 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2511f552-0819-40c3-8eca-1f7ebf881741/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:56:35,340 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 22:56:35,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:56:35,341 INFO L85 PathProgramCache]: Analyzing trace with hash 2033981501, now seen corresponding path program 1 times [2021-11-12 22:56:35,343 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:56:35,343 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1083768508] [2021-11-12 22:56:35,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:56:35,343 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:56:35,343 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2511f552-0819-40c3-8eca-1f7ebf881741/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:56:35,347 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2511f552-0819-40c3-8eca-1f7ebf881741/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:56:35,389 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2511f552-0819-40c3-8eca-1f7ebf881741/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-12 22:56:37,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:56:37,291 INFO L263 TraceCheckSpWp]: Trace formula consists of 1412 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 22:56:37,298 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:56:38,689 INFO L134 CoverageAnalysis]: Checked inductivity of 681 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 679 trivial. 0 not checked. [2021-11-12 22:56:38,689 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:56:39,492 INFO L134 CoverageAnalysis]: Checked inductivity of 681 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 679 trivial. 0 not checked. [2021-11-12 22:56:39,492 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:56:39,492 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1083768508] [2021-11-12 22:56:39,493 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1083768508] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-12 22:56:39,493 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-12 22:56:39,493 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2021-11-12 22:56:39,494 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [703639728] [2021-11-12 22:56:39,494 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 22:56:39,495 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-12 22:56:39,495 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:56:39,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-12 22:56:39,496 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-12 22:56:39,496 INFO L87 Difference]: Start difference. First operand 40349 states and 55941 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-11-12 22:56:41,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:56:41,316 INFO L93 Difference]: Finished difference Result 40355 states and 55946 transitions. [2021-11-12 22:56:41,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-12 22:56:41,317 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 210 [2021-11-12 22:56:41,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:56:41,529 INFO L225 Difference]: With dead ends: 40355 [2021-11-12 22:56:41,530 INFO L226 Difference]: Without dead ends: 40353 [2021-11-12 22:56:41,557 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 421 GetRequests, 413 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2021-11-12 22:56:41,558 INFO L933 BasicCegarLoop]: 2725 mSDtfsCounter, 2658 mSDsluCounter, 5431 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 39.89ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2668 SdHoareTripleChecker+Valid, 8156 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 17.36ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 45.00ms IncrementalHoareTripleChecker+Time [2021-11-12 22:56:41,558 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2668 Valid, 8156 Invalid, 20 Unknown, 0 Unchecked, 17.36ms Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 45.00ms Time] [2021-11-12 22:56:41,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40353 states. [2021-11-12 22:56:43,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40353 to 40353. [2021-11-12 22:56:43,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40353 states, 28050 states have (on average 1.277005347593583) internal successors, (35820), 28572 states have internal predecessors, (35820), 10051 states have call successors, (10051), 2298 states have call predecessors, (10051), 2249 states have return successors, (10073), 9796 states have call predecessors, (10073), 10047 states have call successors, (10073) [2021-11-12 22:56:44,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40353 states to 40353 states and 55944 transitions. [2021-11-12 22:56:44,402 INFO L78 Accepts]: Start accepts. Automaton has 40353 states and 55944 transitions. Word has length 210 [2021-11-12 22:56:44,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:56:44,403 INFO L470 AbstractCegarLoop]: Abstraction has 40353 states and 55944 transitions. [2021-11-12 22:56:44,404 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-11-12 22:56:44,404 INFO L276 IsEmpty]: Start isEmpty. Operand 40353 states and 55944 transitions. [2021-11-12 22:56:44,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2021-11-12 22:56:44,410 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:56:44,411 INFO L514 BasicCegarLoop]: trace histogram [15, 15, 11, 11, 11, 11, 11, 11, 4, 4, 4, 3, 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] [2021-11-12 22:56:44,459 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2511f552-0819-40c3-8eca-1f7ebf881741/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-12 22:56:44,624 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2511f552-0819-40c3-8eca-1f7ebf881741/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:56:44,624 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 22:56:44,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:56:44,625 INFO L85 PathProgramCache]: Analyzing trace with hash 567579389, now seen corresponding path program 1 times [2021-11-12 22:56:44,626 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:56:44,627 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1713042901] [2021-11-12 22:56:44,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:56:44,627 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:56:44,627 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2511f552-0819-40c3-8eca-1f7ebf881741/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:56:44,629 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2511f552-0819-40c3-8eca-1f7ebf881741/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:56:44,651 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2511f552-0819-40c3-8eca-1f7ebf881741/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-12 22:56:46,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:56:46,517 INFO L263 TraceCheckSpWp]: Trace formula consists of 1419 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 22:56:46,524 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:56:47,662 INFO L134 CoverageAnalysis]: Checked inductivity of 687 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 683 trivial. 0 not checked. [2021-11-12 22:56:47,662 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:56:48,442 INFO L134 CoverageAnalysis]: Checked inductivity of 687 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 683 trivial. 0 not checked. [2021-11-12 22:56:48,443 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:56:48,443 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1713042901] [2021-11-12 22:56:48,443 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1713042901] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-12 22:56:48,443 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-12 22:56:48,443 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2021-11-12 22:56:48,444 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1283713244] [2021-11-12 22:56:48,444 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 22:56:48,444 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-12 22:56:48,444 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:56:48,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-12 22:56:48,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-12 22:56:48,445 INFO L87 Difference]: Start difference. First operand 40353 states and 55944 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2021-11-12 22:56:50,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:56:50,557 INFO L93 Difference]: Finished difference Result 40359 states and 55949 transitions. [2021-11-12 22:56:50,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-12 22:56:50,558 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 215 [2021-11-12 22:56:50,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:56:50,711 INFO L225 Difference]: With dead ends: 40359 [2021-11-12 22:56:50,711 INFO L226 Difference]: Without dead ends: 40357 [2021-11-12 22:56:50,729 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 431 GetRequests, 423 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2021-11-12 22:56:50,730 INFO L933 BasicCegarLoop]: 2725 mSDtfsCounter, 2658 mSDsluCounter, 5431 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 47.47ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2667 SdHoareTripleChecker+Valid, 8156 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 26.23ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 52.22ms IncrementalHoareTripleChecker+Time [2021-11-12 22:56:50,731 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2667 Valid, 8156 Invalid, 20 Unknown, 0 Unchecked, 26.23ms Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 52.22ms Time] [2021-11-12 22:56:50,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40357 states. [2021-11-12 22:56:52,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40357 to 40357. [2021-11-12 22:56:52,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40357 states, 28053 states have (on average 1.2769757245214415) internal successors, (35823), 28575 states have internal predecessors, (35823), 10051 states have call successors, (10051), 2299 states have call predecessors, (10051), 2250 states have return successors, (10073), 9796 states have call predecessors, (10073), 10047 states have call successors, (10073) [2021-11-12 22:56:53,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40357 states to 40357 states and 55947 transitions. [2021-11-12 22:56:53,175 INFO L78 Accepts]: Start accepts. Automaton has 40357 states and 55947 transitions. Word has length 215 [2021-11-12 22:56:53,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:56:53,176 INFO L470 AbstractCegarLoop]: Abstraction has 40357 states and 55947 transitions. [2021-11-12 22:56:53,177 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2021-11-12 22:56:53,177 INFO L276 IsEmpty]: Start isEmpty. Operand 40357 states and 55947 transitions. [2021-11-12 22:56:53,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2021-11-12 22:56:53,185 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:56:53,186 INFO L514 BasicCegarLoop]: trace histogram [15, 15, 11, 11, 11, 11, 11, 11, 5, 5, 5, 4, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:56:53,236 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2511f552-0819-40c3-8eca-1f7ebf881741/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-12 22:56:53,412 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2511f552-0819-40c3-8eca-1f7ebf881741/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:56:53,412 INFO L402 AbstractCegarLoop]: === Iteration 8 === 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 22:56:53,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:56:53,413 INFO L85 PathProgramCache]: Analyzing trace with hash -1378185684, now seen corresponding path program 1 times [2021-11-12 22:56:53,414 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:56:53,414 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [96987111] [2021-11-12 22:56:53,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:56:53,414 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:56:53,415 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2511f552-0819-40c3-8eca-1f7ebf881741/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:56:53,417 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2511f552-0819-40c3-8eca-1f7ebf881741/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:56:53,418 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2511f552-0819-40c3-8eca-1f7ebf881741/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-12 22:56:55,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:56:55,502 INFO L263 TraceCheckSpWp]: Trace formula consists of 1473 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-12 22:56:55,509 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:56:56,098 INFO L134 CoverageAnalysis]: Checked inductivity of 708 backedges. 71 proven. 0 refuted. 0 times theorem prover too weak. 637 trivial. 0 not checked. [2021-11-12 22:56:56,098 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:56:56,647 INFO L134 CoverageAnalysis]: Checked inductivity of 708 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 697 trivial. 0 not checked. [2021-11-12 22:56:56,648 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:56:56,648 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [96987111] [2021-11-12 22:56:56,648 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [96987111] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:56:56,648 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:56:56,648 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-12 22:56:56,648 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [528148546] [2021-11-12 22:56:56,649 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:56:56,650 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-12 22:56:56,650 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:56:56,650 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-12 22:56:56,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 22:56:56,651 INFO L87 Difference]: Start difference. First operand 40357 states and 55947 transitions. Second operand has 4 states, 4 states have (on average 23.25) internal successors, (93), 4 states have internal predecessors, (93), 4 states have call successors, (35), 3 states have call predecessors, (35), 3 states have return successors, (33), 4 states have call predecessors, (33), 4 states have call successors, (33) [2021-11-12 22:56:58,812 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:57:06,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:57:06,293 INFO L93 Difference]: Finished difference Result 99844 states and 138366 transitions. [2021-11-12 22:57:06,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 22:57:06,294 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.25) internal successors, (93), 4 states have internal predecessors, (93), 4 states have call successors, (35), 3 states have call predecessors, (35), 3 states have return successors, (33), 4 states have call predecessors, (33), 4 states have call successors, (33) Word has length 231 [2021-11-12 22:57:06,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:57:06,581 INFO L225 Difference]: With dead ends: 99844 [2021-11-12 22:57:06,582 INFO L226 Difference]: Without dead ends: 59881 [2021-11-12 22:57:06,713 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 460 GetRequests, 458 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 22:57:06,714 INFO L933 BasicCegarLoop]: 4227 mSDtfsCounter, 5302 mSDsluCounter, 4776 mSDsCounter, 0 mSdLazyCounter, 1067 mSolverCounterSat, 12 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5618.15ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 5302 SdHoareTripleChecker+Valid, 9003 SdHoareTripleChecker+Invalid, 1080 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 29.34ms SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 1067 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6159.38ms IncrementalHoareTripleChecker+Time [2021-11-12 22:57:06,714 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5302 Valid, 9003 Invalid, 1080 Unknown, 0 Unchecked, 29.34ms Time], IncrementalHoareTripleChecker [12 Valid, 1067 Invalid, 1 Unknown, 0 Unchecked, 6159.38ms Time] [2021-11-12 22:57:06,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59881 states. [2021-11-12 22:57:10,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59881 to 59813. [2021-11-12 22:57:10,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59813 states, 41597 states have (on average 1.2734812606678365) internal successors, (52973), 42345 states have internal predecessors, (52973), 14875 states have call successors, (14875), 3417 states have call predecessors, (14875), 3338 states have return successors, (14910), 14520 states have call predecessors, (14910), 14871 states have call successors, (14910) [2021-11-12 22:57:10,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59813 states to 59813 states and 82758 transitions. [2021-11-12 22:57:10,907 INFO L78 Accepts]: Start accepts. Automaton has 59813 states and 82758 transitions. Word has length 231 [2021-11-12 22:57:10,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:57:10,907 INFO L470 AbstractCegarLoop]: Abstraction has 59813 states and 82758 transitions. [2021-11-12 22:57:10,908 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.25) internal successors, (93), 4 states have internal predecessors, (93), 4 states have call successors, (35), 3 states have call predecessors, (35), 3 states have return successors, (33), 4 states have call predecessors, (33), 4 states have call successors, (33) [2021-11-12 22:57:10,908 INFO L276 IsEmpty]: Start isEmpty. Operand 59813 states and 82758 transitions. [2021-11-12 22:57:10,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2021-11-12 22:57:10,914 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:57:10,915 INFO L514 BasicCegarLoop]: trace histogram [15, 15, 11, 11, 11, 11, 11, 11, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:57:10,952 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2511f552-0819-40c3-8eca-1f7ebf881741/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (9)] Ended with exit code 0 [2021-11-12 22:57:11,128 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2511f552-0819-40c3-8eca-1f7ebf881741/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:57:11,128 INFO L402 AbstractCegarLoop]: === Iteration 9 === 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 22:57:11,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:57:11,129 INFO L85 PathProgramCache]: Analyzing trace with hash -1892161539, now seen corresponding path program 1 times [2021-11-12 22:57:11,130 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:57:11,130 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [148649528] [2021-11-12 22:57:11,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:57:11,131 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:57:11,131 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2511f552-0819-40c3-8eca-1f7ebf881741/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:57:11,132 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2511f552-0819-40c3-8eca-1f7ebf881741/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:57:11,134 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2511f552-0819-40c3-8eca-1f7ebf881741/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-12 22:57:12,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:57:12,902 INFO L263 TraceCheckSpWp]: Trace formula consists of 1426 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 22:57:12,908 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:57:14,049 INFO L134 CoverageAnalysis]: Checked inductivity of 697 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 691 trivial. 0 not checked. [2021-11-12 22:57:14,049 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:57:14,807 INFO L134 CoverageAnalysis]: Checked inductivity of 697 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 691 trivial. 0 not checked. [2021-11-12 22:57:14,808 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:57:14,808 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [148649528] [2021-11-12 22:57:14,808 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [148649528] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-12 22:57:14,808 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-12 22:57:14,808 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2021-11-12 22:57:14,808 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [535185582] [2021-11-12 22:57:14,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 22:57:14,809 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-12 22:57:14,809 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:57:14,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-12 22:57:14,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-12 22:57:14,810 INFO L87 Difference]: Start difference. First operand 59813 states and 82758 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2021-11-12 22:57:18,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:57:18,217 INFO L93 Difference]: Finished difference Result 59819 states and 82763 transitions. [2021-11-12 22:57:18,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-12 22:57:18,218 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 220 [2021-11-12 22:57:18,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:57:18,554 INFO L225 Difference]: With dead ends: 59819 [2021-11-12 22:57:18,554 INFO L226 Difference]: Without dead ends: 59817 [2021-11-12 22:57:18,576 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 441 GetRequests, 433 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2021-11-12 22:57:18,577 INFO L933 BasicCegarLoop]: 2725 mSDtfsCounter, 2658 mSDsluCounter, 5431 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 38.89ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2666 SdHoareTripleChecker+Valid, 8156 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 14.37ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 43.37ms IncrementalHoareTripleChecker+Time [2021-11-12 22:57:18,578 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2666 Valid, 8156 Invalid, 20 Unknown, 0 Unchecked, 14.37ms Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 43.37ms Time] [2021-11-12 22:57:18,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59817 states. [2021-11-12 22:57:22,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59817 to 59817. [2021-11-12 22:57:22,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59817 states, 41600 states have (on average 1.2734615384615384) internal successors, (52976), 42348 states have internal predecessors, (52976), 14875 states have call successors, (14875), 3418 states have call predecessors, (14875), 3339 states have return successors, (14910), 14520 states have call predecessors, (14910), 14871 states have call successors, (14910) [2021-11-12 22:57:22,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59817 states to 59817 states and 82761 transitions. [2021-11-12 22:57:22,933 INFO L78 Accepts]: Start accepts. Automaton has 59817 states and 82761 transitions. Word has length 220 [2021-11-12 22:57:22,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:57:22,934 INFO L470 AbstractCegarLoop]: Abstraction has 59817 states and 82761 transitions. [2021-11-12 22:57:22,934 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2021-11-12 22:57:22,934 INFO L276 IsEmpty]: Start isEmpty. Operand 59817 states and 82761 transitions. [2021-11-12 22:57:22,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2021-11-12 22:57:22,942 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:57:22,942 INFO L514 BasicCegarLoop]: trace histogram [15, 15, 11, 11, 11, 11, 11, 11, 5, 4, 4, 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] [2021-11-12 22:57:22,988 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2511f552-0819-40c3-8eca-1f7ebf881741/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-11-12 22:57:23,156 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2511f552-0819-40c3-8eca-1f7ebf881741/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:57:23,156 INFO L402 AbstractCegarLoop]: === Iteration 10 === 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 22:57:23,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:57:23,157 INFO L85 PathProgramCache]: Analyzing trace with hash 331270845, now seen corresponding path program 1 times [2021-11-12 22:57:23,158 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:57:23,158 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1007717211] [2021-11-12 22:57:23,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:57:23,159 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:57:23,159 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2511f552-0819-40c3-8eca-1f7ebf881741/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:57:23,159 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2511f552-0819-40c3-8eca-1f7ebf881741/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:57:23,162 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2511f552-0819-40c3-8eca-1f7ebf881741/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-11-12 22:57:24,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:57:24,975 INFO L263 TraceCheckSpWp]: Trace formula consists of 1433 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 22:57:24,981 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:57:26,263 INFO L134 CoverageAnalysis]: Checked inductivity of 711 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 703 trivial. 0 not checked. [2021-11-12 22:57:26,264 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:57:27,101 INFO L134 CoverageAnalysis]: Checked inductivity of 711 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 703 trivial. 0 not checked. [2021-11-12 22:57:27,102 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:57:27,102 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1007717211] [2021-11-12 22:57:27,102 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1007717211] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-12 22:57:27,102 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-12 22:57:27,103 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2021-11-12 22:57:27,103 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2013994405] [2021-11-12 22:57:27,103 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 22:57:27,104 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-12 22:57:27,104 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:57:27,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-12 22:57:27,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-12 22:57:27,105 INFO L87 Difference]: Start difference. First operand 59817 states and 82761 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (26), 3 states have call predecessors, (26), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24)