./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-natsemi-ns83820.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_5e22c570-9d26-45c3-b540-bf83ae82539f/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e22c570-9d26-45c3-b540-bf83ae82539f/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_5e22c570-9d26-45c3-b540-bf83ae82539f/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e22c570-9d26-45c3-b540-bf83ae82539f/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-natsemi-ns83820.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e22c570-9d26-45c3-b540-bf83ae82539f/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_5e22c570-9d26-45c3-b540-bf83ae82539f/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 a8ab8b9c7011aec39f84a1ecf826f202398208cb106ea4649e1adfd1ea4d4076 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-12 23:14:24,103 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-12 23:14:24,105 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-12 23:14:24,163 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-12 23:14:24,163 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-12 23:14:24,167 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-12 23:14:24,169 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-12 23:14:24,173 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-12 23:14:24,175 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-12 23:14:24,180 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-12 23:14:24,181 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-12 23:14:24,182 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-12 23:14:24,183 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-12 23:14:24,185 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-12 23:14:24,187 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-12 23:14:24,194 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-12 23:14:24,195 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-12 23:14:24,196 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-12 23:14:24,199 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-12 23:14:24,206 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-12 23:14:24,208 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-12 23:14:24,209 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-12 23:14:24,212 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-12 23:14:24,213 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-12 23:14:24,221 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-12 23:14:24,221 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-12 23:14:24,222 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-12 23:14:24,227 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-12 23:14:24,228 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-12 23:14:24,229 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-12 23:14:24,229 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-12 23:14:24,230 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-12 23:14:24,232 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-12 23:14:24,233 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-12 23:14:24,234 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-12 23:14:24,235 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-12 23:14:24,235 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-12 23:14:24,235 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-12 23:14:24,236 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-12 23:14:24,236 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-12 23:14:24,237 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-12 23:14:24,238 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e22c570-9d26-45c3-b540-bf83ae82539f/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-12 23:14:24,281 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-12 23:14:24,281 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-12 23:14:24,283 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-12 23:14:24,283 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-12 23:14:24,283 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-12 23:14:24,283 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-12 23:14:24,283 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-12 23:14:24,284 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-12 23:14:24,289 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-12 23:14:24,290 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-12 23:14:24,291 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-12 23:14:24,291 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-12 23:14:24,291 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-12 23:14:24,291 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-12 23:14:24,291 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-12 23:14:24,292 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-12 23:14:24,292 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-12 23:14:24,293 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-12 23:14:24,293 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-12 23:14:24,293 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-12 23:14:24,293 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-12 23:14:24,293 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-12 23:14:24,293 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-12 23:14:24,294 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-12 23:14:24,294 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-12 23:14:24,294 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-12 23:14:24,294 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-12 23:14:24,294 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-12 23:14:24,295 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 23:14:24,296 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-12 23:14:24,296 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-12 23:14:24,296 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-12 23:14:24,297 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-12 23:14:24,297 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-12 23:14:24,297 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-12 23:14:24,297 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-12 23:14:24,297 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-12 23:14:24,298 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_5e22c570-9d26-45c3-b540-bf83ae82539f/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e22c570-9d26-45c3-b540-bf83ae82539f/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a8ab8b9c7011aec39f84a1ecf826f202398208cb106ea4649e1adfd1ea4d4076 [2021-11-12 23:14:24,606 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-12 23:14:24,628 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-12 23:14:24,631 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-12 23:14:24,632 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-12 23:14:24,633 INFO L275 PluginConnector]: CDTParser initialized [2021-11-12 23:14:24,634 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e22c570-9d26-45c3-b540-bf83ae82539f/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-natsemi-ns83820.cil.i [2021-11-12 23:14:24,719 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e22c570-9d26-45c3-b540-bf83ae82539f/bin/utaipan-vmNK8stdcF/data/73eee704c/6f03cee498bd4a58a27b281462a54f62/FLAGe8c7582b5 [2021-11-12 23:14:25,624 INFO L306 CDTParser]: Found 1 translation units. [2021-11-12 23:14:25,624 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e22c570-9d26-45c3-b540-bf83ae82539f/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-natsemi-ns83820.cil.i [2021-11-12 23:14:25,664 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e22c570-9d26-45c3-b540-bf83ae82539f/bin/utaipan-vmNK8stdcF/data/73eee704c/6f03cee498bd4a58a27b281462a54f62/FLAGe8c7582b5 [2021-11-12 23:14:26,061 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e22c570-9d26-45c3-b540-bf83ae82539f/bin/utaipan-vmNK8stdcF/data/73eee704c/6f03cee498bd4a58a27b281462a54f62 [2021-11-12 23:14:26,063 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-12 23:14:26,065 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-12 23:14:26,066 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-12 23:14:26,067 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-12 23:14:26,070 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-12 23:14:26,070 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 11:14:26" (1/1) ... [2021-11-12 23:14:26,083 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@58478607 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:14:26, skipping insertion in model container [2021-11-12 23:14:26,083 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 11:14:26" (1/1) ... [2021-11-12 23:14:26,090 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-12 23:14:26,259 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 23:14:28,020 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 23:14:29,174 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_5e22c570-9d26-45c3-b540-bf83ae82539f/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-natsemi-ns83820.cil.i[322443,322456] [2021-11-12 23:14:29,177 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_5e22c570-9d26-45c3-b540-bf83ae82539f/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-natsemi-ns83820.cil.i[322612,322625] [2021-11-12 23:14:29,178 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_5e22c570-9d26-45c3-b540-bf83ae82539f/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-natsemi-ns83820.cil.i[322779,322792] [2021-11-12 23:14:29,178 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_5e22c570-9d26-45c3-b540-bf83ae82539f/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-natsemi-ns83820.cil.i[322947,322960] [2021-11-12 23:14:29,214 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 23:14:29,260 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-11-12 23:14:29,261 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@3182c55e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:14:29, skipping insertion in model container [2021-11-12 23:14:29,261 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-12 23:14:29,262 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-12 23:14:29,264 INFO L158 Benchmark]: Toolchain (without parser) took 3197.94ms. Allocated memory was 109.1MB in the beginning and 144.7MB in the end (delta: 35.7MB). Free memory was 61.5MB in the beginning and 77.8MB in the end (delta: -16.3MB). Peak memory consumption was 25.4MB. Max. memory is 16.1GB. [2021-11-12 23:14:29,265 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 73.4MB. Free memory was 47.4MB in the beginning and 47.4MB in the end (delta: 31.1kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-12 23:14:29,267 INFO L158 Benchmark]: CACSL2BoogieTranslator took 3195.40ms. Allocated memory was 109.1MB in the beginning and 144.7MB in the end (delta: 35.7MB). Free memory was 61.3MB in the beginning and 77.8MB in the end (delta: -16.5MB). Peak memory consumption was 25.4MB. Max. memory is 16.1GB. [2021-11-12 23:14:29,269 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 73.4MB. Free memory was 47.4MB in the beginning and 47.4MB in the end (delta: 31.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 3195.40ms. Allocated memory was 109.1MB in the beginning and 144.7MB in the end (delta: 35.7MB). Free memory was 61.3MB in the beginning and 77.8MB in the end (delta: -16.5MB). Peak memory consumption was 25.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 6231]: 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_5e22c570-9d26-45c3-b540-bf83ae82539f/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e22c570-9d26-45c3-b540-bf83ae82539f/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_5e22c570-9d26-45c3-b540-bf83ae82539f/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e22c570-9d26-45c3-b540-bf83ae82539f/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-natsemi-ns83820.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e22c570-9d26-45c3-b540-bf83ae82539f/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_5e22c570-9d26-45c3-b540-bf83ae82539f/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 a8ab8b9c7011aec39f84a1ecf826f202398208cb106ea4649e1adfd1ea4d4076 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-12 23:14:31,383 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-12 23:14:31,390 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-12 23:14:31,426 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-12 23:14:31,427 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-12 23:14:31,428 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-12 23:14:31,430 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-12 23:14:31,433 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-12 23:14:31,435 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-12 23:14:31,436 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-12 23:14:31,437 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-12 23:14:31,438 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-12 23:14:31,439 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-12 23:14:31,440 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-12 23:14:31,442 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-12 23:14:31,443 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-12 23:14:31,446 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-12 23:14:31,450 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-12 23:14:31,453 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-12 23:14:31,458 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-12 23:14:31,463 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-12 23:14:31,469 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-12 23:14:31,471 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-12 23:14:31,472 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-12 23:14:31,476 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-12 23:14:31,481 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-12 23:14:31,482 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-12 23:14:31,485 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-12 23:14:31,486 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-12 23:14:31,487 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-12 23:14:31,491 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-12 23:14:31,492 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-12 23:14:31,493 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-12 23:14:31,494 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-12 23:14:31,495 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-12 23:14:31,496 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-12 23:14:31,497 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-12 23:14:31,498 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-12 23:14:31,498 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-12 23:14:31,499 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-12 23:14:31,500 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-12 23:14:31,501 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e22c570-9d26-45c3-b540-bf83ae82539f/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-12 23:14:31,541 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-12 23:14:31,543 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-12 23:14:31,544 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-12 23:14:31,545 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-12 23:14:31,545 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-12 23:14:31,545 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-12 23:14:31,545 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-12 23:14:31,546 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-12 23:14:31,546 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-12 23:14:31,546 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-12 23:14:31,548 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-12 23:14:31,548 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-12 23:14:31,549 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-12 23:14:31,549 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-12 23:14:31,549 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-12 23:14:31,549 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-12 23:14:31,549 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-12 23:14:31,550 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-12 23:14:31,550 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-12 23:14:31,550 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-12 23:14:31,550 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-12 23:14:31,551 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-12 23:14:31,551 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-12 23:14:31,551 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-12 23:14:31,551 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 23:14:31,551 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-12 23:14:31,552 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-12 23:14:31,552 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-12 23:14:31,552 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-12 23:14:31,552 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-12 23:14:31,553 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-12 23:14:31,553 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-12 23:14:31,553 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-12 23:14:31,553 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_5e22c570-9d26-45c3-b540-bf83ae82539f/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e22c570-9d26-45c3-b540-bf83ae82539f/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a8ab8b9c7011aec39f84a1ecf826f202398208cb106ea4649e1adfd1ea4d4076 [2021-11-12 23:14:31,902 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-12 23:14:31,926 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-12 23:14:31,929 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-12 23:14:31,930 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-12 23:14:31,931 INFO L275 PluginConnector]: CDTParser initialized [2021-11-12 23:14:31,932 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e22c570-9d26-45c3-b540-bf83ae82539f/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-natsemi-ns83820.cil.i [2021-11-12 23:14:32,002 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e22c570-9d26-45c3-b540-bf83ae82539f/bin/utaipan-vmNK8stdcF/data/3c886d7e6/38d313b70bf5412d91213de029a30891/FLAGe2b8922c8 [2021-11-12 23:14:32,953 INFO L306 CDTParser]: Found 1 translation units. [2021-11-12 23:14:32,953 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e22c570-9d26-45c3-b540-bf83ae82539f/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-natsemi-ns83820.cil.i [2021-11-12 23:14:33,002 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e22c570-9d26-45c3-b540-bf83ae82539f/bin/utaipan-vmNK8stdcF/data/3c886d7e6/38d313b70bf5412d91213de029a30891/FLAGe2b8922c8 [2021-11-12 23:14:33,461 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e22c570-9d26-45c3-b540-bf83ae82539f/bin/utaipan-vmNK8stdcF/data/3c886d7e6/38d313b70bf5412d91213de029a30891 [2021-11-12 23:14:33,463 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-12 23:14:33,465 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-12 23:14:33,467 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-12 23:14:33,467 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-12 23:14:33,471 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-12 23:14:33,472 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 11:14:33" (1/1) ... [2021-11-12 23:14:33,474 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@570d4447 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:14:33, skipping insertion in model container [2021-11-12 23:14:33,474 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 11:14:33" (1/1) ... [2021-11-12 23:14:33,482 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-12 23:14:33,634 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 23:14:36,780 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_5e22c570-9d26-45c3-b540-bf83ae82539f/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-natsemi-ns83820.cil.i[322443,322456] [2021-11-12 23:14:36,783 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_5e22c570-9d26-45c3-b540-bf83ae82539f/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-natsemi-ns83820.cil.i[322612,322625] [2021-11-12 23:14:36,784 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_5e22c570-9d26-45c3-b540-bf83ae82539f/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-natsemi-ns83820.cil.i[322779,322792] [2021-11-12 23:14:36,784 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_5e22c570-9d26-45c3-b540-bf83ae82539f/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-natsemi-ns83820.cil.i[322947,322960] [2021-11-12 23:14:36,808 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 23:14:36,839 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-12 23:14:36,958 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 23:14:37,260 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_5e22c570-9d26-45c3-b540-bf83ae82539f/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-natsemi-ns83820.cil.i[322443,322456] [2021-11-12 23:14:37,260 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_5e22c570-9d26-45c3-b540-bf83ae82539f/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-natsemi-ns83820.cil.i[322612,322625] [2021-11-12 23:14:37,261 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_5e22c570-9d26-45c3-b540-bf83ae82539f/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-natsemi-ns83820.cil.i[322779,322792] [2021-11-12 23:14:37,261 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_5e22c570-9d26-45c3-b540-bf83ae82539f/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-natsemi-ns83820.cil.i[322947,322960] [2021-11-12 23:14:37,267 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 23:14:37,285 INFO L203 MainTranslator]: Completed pre-run [2021-11-12 23:14:37,671 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_5e22c570-9d26-45c3-b540-bf83ae82539f/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-natsemi-ns83820.cil.i[322443,322456] [2021-11-12 23:14:37,672 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_5e22c570-9d26-45c3-b540-bf83ae82539f/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-natsemi-ns83820.cil.i[322612,322625] [2021-11-12 23:14:37,672 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_5e22c570-9d26-45c3-b540-bf83ae82539f/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-natsemi-ns83820.cil.i[322779,322792] [2021-11-12 23:14:37,673 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_5e22c570-9d26-45c3-b540-bf83ae82539f/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-natsemi-ns83820.cil.i[322947,322960] [2021-11-12 23:14:37,685 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 23:14:37,922 INFO L208 MainTranslator]: Completed translation [2021-11-12 23:14:37,922 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:14:37 WrapperNode [2021-11-12 23:14:37,923 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-12 23:14:37,924 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-12 23:14:37,924 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-12 23:14:37,925 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-12 23:14:37,932 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:14:37" (1/1) ... [2021-11-12 23:14:38,030 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:14:37" (1/1) ... [2021-11-12 23:14:38,258 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-12 23:14:38,259 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-12 23:14:38,260 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-12 23:14:38,260 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-12 23:14:38,268 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:14:37" (1/1) ... [2021-11-12 23:14:38,268 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:14:37" (1/1) ... [2021-11-12 23:14:38,312 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:14:37" (1/1) ... [2021-11-12 23:14:38,313 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:14:37" (1/1) ... [2021-11-12 23:14:38,448 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:14:37" (1/1) ... [2021-11-12 23:14:38,478 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:14:37" (1/1) ... [2021-11-12 23:14:38,512 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:14:37" (1/1) ... [2021-11-12 23:14:38,543 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-12 23:14:38,545 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-12 23:14:38,545 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-12 23:14:38,545 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-12 23:14:38,546 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:14:37" (1/1) ... [2021-11-12 23:14:38,552 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 23:14:38,563 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e22c570-9d26-45c3-b540-bf83ae82539f/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 23:14:38,587 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e22c570-9d26-45c3-b540-bf83ae82539f/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-12 23:14:38,588 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e22c570-9d26-45c3-b540-bf83ae82539f/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-12 23:14:38,635 INFO L130 BoogieDeclarations]: Found specification of procedure ns83820_set_multicast [2021-11-12 23:14:38,635 INFO L138 BoogieDeclarations]: Found implementation of procedure ns83820_set_multicast [2021-11-12 23:14:38,635 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-12 23:14:38,636 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-12 23:14:38,636 INFO L130 BoogieDeclarations]: Found specification of procedure ns83820_rx_kick [2021-11-12 23:14:38,636 INFO L138 BoogieDeclarations]: Found implementation of procedure ns83820_rx_kick [2021-11-12 23:14:38,636 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-11-12 23:14:38,636 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-11-12 23:14:38,636 INFO L130 BoogieDeclarations]: Found specification of procedure ns83820_do_reset [2021-11-12 23:14:38,637 INFO L138 BoogieDeclarations]: Found implementation of procedure ns83820_do_reset [2021-11-12 23:14:38,637 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_87 [2021-11-12 23:14:38,637 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_87 [2021-11-12 23:14:38,637 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-12 23:14:38,637 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-12 23:14:38,637 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2021-11-12 23:14:38,638 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2021-11-12 23:14:38,638 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-11-12 23:14:38,638 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-11-12 23:14:38,638 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-11-12 23:14:38,638 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-11-12 23:14:38,638 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_62 [2021-11-12 23:14:38,639 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_62 [2021-11-12 23:14:38,639 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irq_73 [2021-11-12 23:14:38,639 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irq_73 [2021-11-12 23:14:38,639 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_69 [2021-11-12 23:14:38,639 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_69 [2021-11-12 23:14:38,640 INFO L130 BoogieDeclarations]: Found specification of procedure ns83820_remove_one [2021-11-12 23:14:38,640 INFO L138 BoogieDeclarations]: Found implementation of procedure ns83820_remove_one [2021-11-12 23:14:38,640 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-11-12 23:14:38,640 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-11-12 23:14:38,640 INFO L130 BoogieDeclarations]: Found specification of procedure ns83820_update_stats [2021-11-12 23:14:38,641 INFO L138 BoogieDeclarations]: Found implementation of procedure ns83820_update_stats [2021-11-12 23:14:38,641 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~C_INT~structend~~TO~C_INT [2021-11-12 23:14:38,641 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~C_INT~structend~~TO~C_INT [2021-11-12 23:14:38,641 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-12 23:14:38,641 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-12 23:14:38,642 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2021-11-12 23:14:38,642 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2021-11-12 23:14:38,642 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2021-11-12 23:14:38,642 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2021-11-12 23:14:38,642 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2021-11-12 23:14:38,643 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2021-11-12 23:14:38,643 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-12 23:14:38,644 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-12 23:14:38,644 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-11-12 23:14:38,644 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-11-12 23:14:38,645 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2021-11-12 23:14:38,645 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2021-11-12 23:14:38,645 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-12 23:14:38,645 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2021-11-12 23:14:38,645 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2021-11-12 23:14:38,645 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-12 23:14:38,646 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-12 23:14:38,646 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-12 23:14:38,646 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-11-12 23:14:38,646 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-11-12 23:14:38,647 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-11-12 23:14:38,647 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-11-12 23:14:38,647 INFO L130 BoogieDeclarations]: Found specification of procedure ns83820_tx_timeout [2021-11-12 23:14:38,647 INFO L138 BoogieDeclarations]: Found implementation of procedure ns83820_tx_timeout [2021-11-12 23:14:38,648 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-11-12 23:14:38,648 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-11-12 23:14:38,648 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2021-11-12 23:14:38,649 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2021-11-12 23:14:38,649 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-12 23:14:38,649 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-12 23:14:38,649 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~C_ULONG~X~C_ULONG~X~C_INT~X~$Pointer$~TO~~dma_addr_t~0 [2021-11-12 23:14:38,649 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~C_ULONG~X~C_ULONG~X~C_INT~X~$Pointer$~TO~~dma_addr_t~0 [2021-11-12 23:14:38,649 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-11-12 23:14:38,650 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-11-12 23:14:38,650 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2021-11-12 23:14:38,650 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2021-11-12 23:14:38,650 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-11-12 23:14:38,650 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-11-12 23:14:38,650 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-11-12 23:14:38,651 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-11-12 23:14:38,651 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_dma_mask [2021-11-12 23:14:38,651 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_dma_mask [2021-11-12 23:14:38,652 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2021-11-12 23:14:38,652 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2021-11-12 23:14:38,652 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-11-12 23:14:38,653 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-11-12 23:14:38,653 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2021-11-12 23:14:38,653 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2021-11-12 23:14:38,653 INFO L130 BoogieDeclarations]: Found specification of procedure ns83820_run_bist [2021-11-12 23:14:38,653 INFO L138 BoogieDeclarations]: Found implementation of procedure ns83820_run_bist [2021-11-12 23:14:38,654 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-12 23:14:38,654 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2021-11-12 23:14:38,654 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2021-11-12 23:14:38,654 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2021-11-12 23:14:38,654 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2021-11-12 23:14:38,654 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer [2021-11-12 23:14:38,654 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer [2021-11-12 23:14:38,655 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-12 23:14:38,655 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-12 23:14:38,655 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-12 23:14:38,655 INFO L130 BoogieDeclarations]: Found specification of procedure clear_rx_desc [2021-11-12 23:14:38,655 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_rx_desc [2021-11-12 23:14:38,656 INFO L130 BoogieDeclarations]: Found specification of procedure phy_intr [2021-11-12 23:14:38,656 INFO L138 BoogieDeclarations]: Found implementation of procedure phy_intr [2021-11-12 23:14:38,656 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-12 23:14:38,656 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-12 23:14:38,656 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2021-11-12 23:14:38,658 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2021-11-12 23:14:38,659 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2021-11-12 23:14:38,661 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2021-11-12 23:14:38,661 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~C_ULONG~X~C_INT~X~$Pointer$~TO~VOID [2021-11-12 23:14:38,661 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~C_ULONG~X~C_INT~X~$Pointer$~TO~VOID [2021-11-12 23:14:38,661 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2021-11-12 23:14:38,663 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2021-11-12 23:14:38,663 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_map_page [2021-11-12 23:14:38,663 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_map_page [2021-11-12 23:14:38,663 INFO L130 BoogieDeclarations]: Found specification of procedure do_tx_done [2021-11-12 23:14:38,664 INFO L138 BoogieDeclarations]: Found implementation of procedure do_tx_done [2021-11-12 23:14:38,669 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_misc_lock_of_ns83820 [2021-11-12 23:14:38,669 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_misc_lock_of_ns83820 [2021-11-12 23:14:38,670 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-11-12 23:14:38,670 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-11-12 23:14:38,670 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2021-11-12 23:14:38,670 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2021-11-12 23:14:38,670 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_size [2021-11-12 23:14:38,671 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_size [2021-11-12 23:14:38,671 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2021-11-12 23:14:38,671 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2021-11-12 23:14:38,671 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-12 23:14:38,671 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-12 23:14:38,671 INFO L130 BoogieDeclarations]: Found specification of procedure ns83820_stop [2021-11-12 23:14:38,671 INFO L138 BoogieDeclarations]: Found implementation of procedure ns83820_stop [2021-11-12 23:14:38,672 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-12 23:14:38,672 INFO L130 BoogieDeclarations]: Found specification of procedure kick_tx [2021-11-12 23:14:38,672 INFO L138 BoogieDeclarations]: Found implementation of procedure kick_tx [2021-11-12 23:14:38,672 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-12 23:14:38,672 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-12 23:14:38,672 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_rx_info [2021-11-12 23:14:38,672 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_rx_info [2021-11-12 23:14:38,673 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2021-11-12 23:14:38,673 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-12 23:14:38,673 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-12 23:14:38,673 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-11-12 23:14:38,673 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-11-12 23:14:38,673 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_unlock [2021-11-12 23:14:38,673 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_unlock [2021-11-12 23:14:38,674 INFO L130 BoogieDeclarations]: Found specification of procedure kmemcheck_mark_initialized [2021-11-12 23:14:38,674 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemcheck_mark_initialized [2021-11-12 23:14:38,674 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2021-11-12 23:14:38,674 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2021-11-12 23:14:38,674 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2021-11-12 23:14:38,674 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2021-11-12 23:14:38,674 INFO L130 BoogieDeclarations]: Found specification of procedure ip_hdr [2021-11-12 23:14:38,675 INFO L138 BoogieDeclarations]: Found implementation of procedure ip_hdr [2021-11-12 23:14:38,675 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_cmd_speed_set [2021-11-12 23:14:38,675 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_cmd_speed_set [2021-11-12 23:14:38,675 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-12 23:14:38,675 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-12 23:14:38,675 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-11-12 23:14:38,675 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-11-12 23:14:38,676 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2021-11-12 23:14:38,676 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2021-11-12 23:14:38,676 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_unmap_page [2021-11-12 23:14:38,676 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_unmap_page [2021-11-12 23:14:38,677 INFO L130 BoogieDeclarations]: Found specification of procedure PRIV [2021-11-12 23:14:38,677 INFO L138 BoogieDeclarations]: Found implementation of procedure PRIV [2021-11-12 23:14:38,677 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2021-11-12 23:14:38,677 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2021-11-12 23:14:38,677 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-12 23:14:38,677 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_irq_72 [2021-11-12 23:14:38,678 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_irq_72 [2021-11-12 23:14:38,678 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-12 23:14:38,678 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-12 23:14:38,678 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-12 23:14:38,678 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2021-11-12 23:14:38,678 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-12 23:14:38,679 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-12 23:14:38,679 INFO L130 BoogieDeclarations]: Found specification of procedure kfree_skb [2021-11-12 23:14:38,679 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree_skb [2021-11-12 23:14:38,679 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2021-11-12 23:14:38,679 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2021-11-12 23:14:38,679 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-12 23:14:38,680 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-12 23:14:38,680 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2021-11-12 23:14:38,680 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2021-11-12 23:14:38,680 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_irq [2021-11-12 23:14:38,680 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_irq [2021-11-12 23:14:38,680 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2021-11-12 23:14:38,680 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2021-11-12 23:14:38,681 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-11-12 23:14:38,681 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-11-12 23:14:38,681 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_tx_lock_of_ns83820 [2021-11-12 23:14:38,681 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_tx_lock_of_ns83820 [2021-11-12 23:14:38,681 INFO L130 BoogieDeclarations]: Found specification of procedure synchronize_irq [2021-11-12 23:14:38,681 INFO L138 BoogieDeclarations]: Found implementation of procedure synchronize_irq [2021-11-12 23:14:38,682 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~C_INT [2021-11-12 23:14:38,682 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~C_INT [2021-11-12 23:14:38,682 INFO L130 BoogieDeclarations]: Found specification of procedure build_rx_desc [2021-11-12 23:14:38,682 INFO L138 BoogieDeclarations]: Found implementation of procedure build_rx_desc [2021-11-12 23:14:38,682 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2021-11-12 23:14:38,682 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2021-11-12 23:14:38,683 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-12 23:14:38,683 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-12 23:14:38,683 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2021-11-12 23:14:38,683 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2021-11-12 23:14:38,683 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_misc_lock_of_ns83820 [2021-11-12 23:14:38,683 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_misc_lock_of_ns83820 [2021-11-12 23:14:38,683 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec [2021-11-12 23:14:38,684 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec [2021-11-12 23:14:38,684 INFO L130 BoogieDeclarations]: Found specification of procedure ns83820_open [2021-11-12 23:14:38,684 INFO L138 BoogieDeclarations]: Found implementation of procedure ns83820_open [2021-11-12 23:14:38,684 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-12 23:14:38,684 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-12 23:14:38,684 INFO L130 BoogieDeclarations]: Found specification of procedure rx_irq [2021-11-12 23:14:38,685 INFO L138 BoogieDeclarations]: Found implementation of procedure rx_irq [2021-11-12 23:14:38,685 INFO L130 BoogieDeclarations]: Found specification of procedure ns83820_disable_interrupts [2021-11-12 23:14:38,685 INFO L138 BoogieDeclarations]: Found implementation of procedure ns83820_disable_interrupts [2021-11-12 23:14:38,685 INFO L130 BoogieDeclarations]: Found specification of procedure kick_rx [2021-11-12 23:14:38,685 INFO L138 BoogieDeclarations]: Found implementation of procedure kick_rx [2021-11-12 23:14:38,685 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2021-11-12 23:14:38,685 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2021-11-12 23:14:38,686 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2021-11-12 23:14:38,686 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2021-11-12 23:14:38,686 INFO L130 BoogieDeclarations]: Found specification of procedure rx_refill [2021-11-12 23:14:38,686 INFO L138 BoogieDeclarations]: Found implementation of procedure rx_refill [2021-11-12 23:14:38,686 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-11-12 23:14:38,686 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-11-12 23:14:38,687 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_lock_of_rx_info [2021-11-12 23:14:38,687 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_lock_of_rx_info [2021-11-12 23:14:38,687 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_tx_lock_of_ns83820 [2021-11-12 23:14:38,687 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_tx_lock_of_ns83820 [2021-11-12 23:14:39,868 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-12 23:15:03,330 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-12 23:15:03,619 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-12 23:15:03,619 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-12 23:15:03,624 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 11:15:03 BoogieIcfgContainer [2021-11-12 23:15:03,624 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-12 23:15:03,626 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-12 23:15:03,626 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-12 23:15:03,629 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-12 23:15:03,629 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 11:14:33" (1/3) ... [2021-11-12 23:15:03,630 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5235a559 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 11:15:03, skipping insertion in model container [2021-11-12 23:15:03,630 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:14:37" (2/3) ... [2021-11-12 23:15:03,630 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5235a559 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 11:15:03, skipping insertion in model container [2021-11-12 23:15:03,630 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 11:15:03" (3/3) ... [2021-11-12 23:15:03,632 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-natsemi-ns83820.cil.i [2021-11-12 23:15:03,637 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-12 23:15:03,637 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-11-12 23:15:03,693 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-12 23:15:03,699 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-12 23:15:03,699 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-11-12 23:15:03,751 INFO L276 IsEmpty]: Start isEmpty. Operand has 1770 states, 1156 states have (on average 1.2301038062283738) internal successors, (1422), 1188 states have internal predecessors, (1422), 508 states have call successors, (508), 104 states have call predecessors, (508), 103 states have return successors, (503), 499 states have call predecessors, (503), 503 states have call successors, (503) [2021-11-12 23:15:03,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2021-11-12 23:15:03,763 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:15:03,764 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:15:03,765 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-12 23:15:03,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:15:03,770 INFO L85 PathProgramCache]: Analyzing trace with hash 1440303341, now seen corresponding path program 1 times [2021-11-12 23:15:03,785 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:15:03,786 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1739713204] [2021-11-12 23:15:03,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:15:03,787 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:15:03,787 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e22c570-9d26-45c3-b540-bf83ae82539f/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:15:03,790 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e22c570-9d26-45c3-b540-bf83ae82539f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:15:03,823 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e22c570-9d26-45c3-b540-bf83ae82539f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-12 23:15:04,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:15:04,991 INFO L263 TraceCheckSpWp]: Trace formula consists of 946 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-12 23:15:05,000 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:15:05,324 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 189 trivial. 0 not checked. [2021-11-12 23:15:05,324 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:15:05,608 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2021-11-12 23:15:05,609 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:15:05,609 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1739713204] [2021-11-12 23:15:05,610 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1739713204] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:15:05,610 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:15:05,610 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-12 23:15:05,612 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [729231602] [2021-11-12 23:15:05,613 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:15:05,617 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-12 23:15:05,617 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:15:05,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-12 23:15:05,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 23:15:05,689 INFO L87 Difference]: Start difference. First operand has 1770 states, 1156 states have (on average 1.2301038062283738) internal successors, (1422), 1188 states have internal predecessors, (1422), 508 states have call successors, (508), 104 states have call predecessors, (508), 103 states have return successors, (503), 499 states have call predecessors, (503), 503 states have call successors, (503) Second operand has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 4 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2021-11-12 23:15:07,849 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 23:15:14,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:15:14,576 INFO L93 Difference]: Finished difference Result 6901 states and 9767 transitions. [2021-11-12 23:15:14,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 23:15:14,578 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 4 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) Word has length 101 [2021-11-12 23:15:14,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:15:14,639 INFO L225 Difference]: With dead ends: 6901 [2021-11-12 23:15:14,639 INFO L226 Difference]: Without dead ends: 5133 [2021-11-12 23:15:14,659 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 200 GetRequests, 198 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 23:15:14,662 INFO L933 BasicCegarLoop]: 3408 mSDtfsCounter, 6051 mSDsluCounter, 3719 mSDsCounter, 0 mSdLazyCounter, 1007 mSolverCounterSat, 957 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7430.83ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 6051 SdHoareTripleChecker+Valid, 7127 SdHoareTripleChecker+Invalid, 1965 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 64.50ms SdHoareTripleChecker+Time, 957 IncrementalHoareTripleChecker+Valid, 1007 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8312.01ms IncrementalHoareTripleChecker+Time [2021-11-12 23:15:14,663 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6051 Valid, 7127 Invalid, 1965 Unknown, 0 Unchecked, 64.50ms Time], IncrementalHoareTripleChecker [957 Valid, 1007 Invalid, 1 Unknown, 0 Unchecked, 8312.01ms Time] [2021-11-12 23:15:14,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5133 states. [2021-11-12 23:15:15,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5133 to 5105. [2021-11-12 23:15:15,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5105 states, 3357 states have (on average 1.2228179922549895) internal successors, (4105), 3448 states have internal predecessors, (4105), 1441 states have call successors, (1441), 305 states have call predecessors, (1441), 304 states have return successors, (1438), 1426 states have call predecessors, (1438), 1438 states have call successors, (1438) [2021-11-12 23:15:15,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5105 states to 5105 states and 6984 transitions. [2021-11-12 23:15:15,205 INFO L78 Accepts]: Start accepts. Automaton has 5105 states and 6984 transitions. Word has length 101 [2021-11-12 23:15:15,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:15:15,206 INFO L470 AbstractCegarLoop]: Abstraction has 5105 states and 6984 transitions. [2021-11-12 23:15:15,207 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 4 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2021-11-12 23:15:15,207 INFO L276 IsEmpty]: Start isEmpty. Operand 5105 states and 6984 transitions. [2021-11-12 23:15:15,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-11-12 23:15:15,224 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:15:15,224 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:15:15,255 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e22c570-9d26-45c3-b540-bf83ae82539f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2021-11-12 23:15:15,448 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e22c570-9d26-45c3-b540-bf83ae82539f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:15:15,448 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-12 23:15:15,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:15:15,449 INFO L85 PathProgramCache]: Analyzing trace with hash -655308967, now seen corresponding path program 1 times [2021-11-12 23:15:15,451 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:15:15,451 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1154433266] [2021-11-12 23:15:15,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:15:15,452 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:15:15,452 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e22c570-9d26-45c3-b540-bf83ae82539f/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:15:15,454 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e22c570-9d26-45c3-b540-bf83ae82539f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:15:15,459 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e22c570-9d26-45c3-b540-bf83ae82539f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-12 23:15:16,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:15:16,665 INFO L263 TraceCheckSpWp]: Trace formula consists of 989 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-12 23:15:16,670 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:15:16,964 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 189 trivial. 0 not checked. [2021-11-12 23:15:16,964 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:15:17,280 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2021-11-12 23:15:17,281 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:15:17,281 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1154433266] [2021-11-12 23:15:17,281 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1154433266] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:15:17,281 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:15:17,282 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-12 23:15:17,282 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2055705721] [2021-11-12 23:15:17,282 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:15:17,284 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-12 23:15:17,284 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:15:17,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-12 23:15:17,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-12 23:15:17,285 INFO L87 Difference]: Start difference. First operand 5105 states and 6984 transitions. Second operand has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 3 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2021-11-12 23:15:19,415 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 23:15:20,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:15:20,067 INFO L93 Difference]: Finished difference Result 14371 states and 19613 transitions. [2021-11-12 23:15:20,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-12 23:15:20,068 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 3 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 114 [2021-11-12 23:15:20,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:15:20,144 INFO L225 Difference]: With dead ends: 14371 [2021-11-12 23:15:20,145 INFO L226 Difference]: Without dead ends: 9285 [2021-11-12 23:15:20,167 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 226 GetRequests, 225 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 23:15:20,168 INFO L933 BasicCegarLoop]: 2834 mSDtfsCounter, 1956 mSDsluCounter, 2329 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2261.13ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1956 SdHoareTripleChecker+Valid, 5163 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 16.80ms SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2306.74ms IncrementalHoareTripleChecker+Time [2021-11-12 23:15:20,169 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1956 Valid, 5163 Invalid, 59 Unknown, 0 Unchecked, 16.80ms Time], IncrementalHoareTripleChecker [7 Valid, 51 Invalid, 1 Unknown, 0 Unchecked, 2306.74ms Time] [2021-11-12 23:15:20,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9285 states. [2021-11-12 23:15:20,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9285 to 9246. [2021-11-12 23:15:20,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9246 states, 6035 states have (on average 1.2173985086992543) internal successors, (7347), 6206 states have internal predecessors, (7347), 2619 states have call successors, (2619), 590 states have call predecessors, (2619), 589 states have return successors, (2625), 2590 states have call predecessors, (2625), 2616 states have call successors, (2625) [2021-11-12 23:15:20,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9246 states to 9246 states and 12591 transitions. [2021-11-12 23:15:20,782 INFO L78 Accepts]: Start accepts. Automaton has 9246 states and 12591 transitions. Word has length 114 [2021-11-12 23:15:20,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:15:20,784 INFO L470 AbstractCegarLoop]: Abstraction has 9246 states and 12591 transitions. [2021-11-12 23:15:20,785 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 3 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2021-11-12 23:15:20,789 INFO L276 IsEmpty]: Start isEmpty. Operand 9246 states and 12591 transitions. [2021-11-12 23:15:20,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-11-12 23:15:20,798 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:15:20,799 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:15:20,829 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e22c570-9d26-45c3-b540-bf83ae82539f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-12 23:15:21,024 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e22c570-9d26-45c3-b540-bf83ae82539f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:15:21,024 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-12 23:15:21,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:15:21,025 INFO L85 PathProgramCache]: Analyzing trace with hash 1671475719, now seen corresponding path program 1 times [2021-11-12 23:15:21,026 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:15:21,026 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [940441243] [2021-11-12 23:15:21,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:15:21,026 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:15:21,026 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e22c570-9d26-45c3-b540-bf83ae82539f/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:15:21,031 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e22c570-9d26-45c3-b540-bf83ae82539f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:15:21,074 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e22c570-9d26-45c3-b540-bf83ae82539f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-12 23:15:22,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:15:22,312 INFO L263 TraceCheckSpWp]: Trace formula consists of 1037 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-12 23:15:22,317 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:15:22,616 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 189 trivial. 0 not checked. [2021-11-12 23:15:22,617 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:15:22,979 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2021-11-12 23:15:22,979 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:15:22,979 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [940441243] [2021-11-12 23:15:22,979 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [940441243] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:15:22,979 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:15:22,980 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-12 23:15:22,980 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1329697808] [2021-11-12 23:15:22,980 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:15:22,980 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-12 23:15:22,980 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:15:22,981 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-12 23:15:22,981 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 23:15:22,981 INFO L87 Difference]: Start difference. First operand 9246 states and 12591 transitions. Second operand has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 4 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2021-11-12 23:15:25,095 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 23:15:30,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:15:30,404 INFO L93 Difference]: Finished difference Result 24518 states and 33294 transitions. [2021-11-12 23:15:30,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 23:15:30,405 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 4 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) Word has length 115 [2021-11-12 23:15:30,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:15:30,540 INFO L225 Difference]: With dead ends: 24518 [2021-11-12 23:15:30,540 INFO L226 Difference]: Without dead ends: 15291 [2021-11-12 23:15:30,590 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 228 GetRequests, 226 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 23:15:30,594 INFO L933 BasicCegarLoop]: 3727 mSDtfsCounter, 4048 mSDsluCounter, 4017 mSDsCounter, 0 mSdLazyCounter, 1077 mSolverCounterSat, 41 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6213.72ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4048 SdHoareTripleChecker+Valid, 7744 SdHoareTripleChecker+Invalid, 1119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 38.66ms SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 1077 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6723.55ms IncrementalHoareTripleChecker+Time [2021-11-12 23:15:30,597 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4048 Valid, 7744 Invalid, 1119 Unknown, 0 Unchecked, 38.66ms Time], IncrementalHoareTripleChecker [41 Valid, 1077 Invalid, 1 Unknown, 0 Unchecked, 6723.55ms Time] [2021-11-12 23:15:30,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15291 states. [2021-11-12 23:15:31,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15291 to 15235. [2021-11-12 23:15:31,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15235 states, 9907 states have (on average 1.2132835368931059) internal successors, (12020), 10209 states have internal predecessors, (12020), 4273 states have call successors, (4273), 1053 states have call predecessors, (4273), 1052 states have return successors, (4276), 4230 states have call predecessors, (4276), 4270 states have call successors, (4276) [2021-11-12 23:15:31,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15235 states to 15235 states and 20569 transitions. [2021-11-12 23:15:31,542 INFO L78 Accepts]: Start accepts. Automaton has 15235 states and 20569 transitions. Word has length 115 [2021-11-12 23:15:31,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:15:31,543 INFO L470 AbstractCegarLoop]: Abstraction has 15235 states and 20569 transitions. [2021-11-12 23:15:31,543 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 4 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2021-11-12 23:15:31,543 INFO L276 IsEmpty]: Start isEmpty. Operand 15235 states and 20569 transitions. [2021-11-12 23:15:31,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-11-12 23:15:31,545 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:15:31,545 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 7, 7, 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] [2021-11-12 23:15:31,578 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e22c570-9d26-45c3-b540-bf83ae82539f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-12 23:15:31,766 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e22c570-9d26-45c3-b540-bf83ae82539f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:15:31,767 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-12 23:15:31,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:15:31,767 INFO L85 PathProgramCache]: Analyzing trace with hash -1062090004, now seen corresponding path program 1 times [2021-11-12 23:15:31,769 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:15:31,769 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1542403189] [2021-11-12 23:15:31,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:15:31,769 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:15:31,769 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e22c570-9d26-45c3-b540-bf83ae82539f/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:15:31,771 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e22c570-9d26-45c3-b540-bf83ae82539f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:15:31,782 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e22c570-9d26-45c3-b540-bf83ae82539f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-12 23:15:32,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:15:32,997 INFO L263 TraceCheckSpWp]: Trace formula consists of 1034 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-12 23:15:33,001 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:15:33,301 INFO L134 CoverageAnalysis]: Checked inductivity of 214 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 193 trivial. 0 not checked. [2021-11-12 23:15:33,302 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:15:33,591 INFO L134 CoverageAnalysis]: Checked inductivity of 214 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 214 trivial. 0 not checked. [2021-11-12 23:15:33,591 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:15:33,591 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1542403189] [2021-11-12 23:15:33,591 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1542403189] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:15:33,591 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:15:33,591 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-12 23:15:33,591 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1834022809] [2021-11-12 23:15:33,591 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:15:33,592 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-12 23:15:33,592 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:15:33,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-12 23:15:33,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 23:15:33,593 INFO L87 Difference]: Start difference. First operand 15235 states and 20569 transitions. Second operand has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 4 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) [2021-11-12 23:15:35,704 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 23:15:40,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:15:40,199 INFO L93 Difference]: Finished difference Result 55265 states and 74667 transitions. [2021-11-12 23:15:40,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 23:15:40,200 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 4 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) Word has length 119 [2021-11-12 23:15:40,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:15:40,398 INFO L225 Difference]: With dead ends: 55265 [2021-11-12 23:15:40,398 INFO L226 Difference]: Without dead ends: 40049 [2021-11-12 23:15:40,476 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 236 GetRequests, 234 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 23:15:40,478 INFO L933 BasicCegarLoop]: 3321 mSDtfsCounter, 4404 mSDsluCounter, 5796 mSDsCounter, 0 mSdLazyCounter, 888 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4940.91ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4404 SdHoareTripleChecker+Valid, 9117 SdHoareTripleChecker+Invalid, 896 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 28.93ms SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 888 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5378.29ms IncrementalHoareTripleChecker+Time [2021-11-12 23:15:40,480 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4404 Valid, 9117 Invalid, 896 Unknown, 0 Unchecked, 28.93ms Time], IncrementalHoareTripleChecker [7 Valid, 888 Invalid, 1 Unknown, 0 Unchecked, 5378.29ms Time] [2021-11-12 23:15:40,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40049 states. [2021-11-12 23:15:42,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40049 to 39947. [2021-11-12 23:15:42,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39947 states, 26012 states have (on average 1.2179378748270029) internal successors, (31681), 26856 states have internal predecessors, (31681), 11084 states have call successors, (11084), 2869 states have call predecessors, (11084), 2848 states have return successors, (11199), 10889 states have call predecessors, (11199), 11081 states have call successors, (11199) [2021-11-12 23:15:43,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39947 states to 39947 states and 53964 transitions. [2021-11-12 23:15:43,322 INFO L78 Accepts]: Start accepts. Automaton has 39947 states and 53964 transitions. Word has length 119 [2021-11-12 23:15:43,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:15:43,339 INFO L470 AbstractCegarLoop]: Abstraction has 39947 states and 53964 transitions. [2021-11-12 23:15:43,339 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 4 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) [2021-11-12 23:15:43,340 INFO L276 IsEmpty]: Start isEmpty. Operand 39947 states and 53964 transitions. [2021-11-12 23:15:43,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2021-11-12 23:15:43,342 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:15:43,342 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 7, 7, 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] [2021-11-12 23:15:43,389 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e22c570-9d26-45c3-b540-bf83ae82539f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (5)] Ended with exit code 0 [2021-11-12 23:15:43,543 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e22c570-9d26-45c3-b540-bf83ae82539f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:15:43,543 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-12 23:15:43,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:15:43,543 INFO L85 PathProgramCache]: Analyzing trace with hash -575522440, now seen corresponding path program 1 times [2021-11-12 23:15:43,545 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:15:43,545 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [947078712] [2021-11-12 23:15:43,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:15:43,545 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:15:43,546 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e22c570-9d26-45c3-b540-bf83ae82539f/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:15:43,563 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e22c570-9d26-45c3-b540-bf83ae82539f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:15:43,612 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e22c570-9d26-45c3-b540-bf83ae82539f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-12 23:15:44,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:15:44,930 INFO L263 TraceCheckSpWp]: Trace formula consists of 1037 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-12 23:15:44,933 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:15:45,228 INFO L134 CoverageAnalysis]: Checked inductivity of 214 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 193 trivial. 0 not checked. [2021-11-12 23:15:45,228 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:15:45,496 INFO L134 CoverageAnalysis]: Checked inductivity of 214 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 214 trivial. 0 not checked. [2021-11-12 23:15:45,497 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:15:45,497 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [947078712] [2021-11-12 23:15:45,497 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [947078712] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:15:45,498 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:15:45,499 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-12 23:15:45,499 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1784142945] [2021-11-12 23:15:45,499 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:15:45,500 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-12 23:15:45,500 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:15:45,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-12 23:15:45,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 23:15:45,501 INFO L87 Difference]: Start difference. First operand 39947 states and 53964 transitions. Second operand has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 4 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) [2021-11-12 23:15:47,615 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 23:15:55,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:15:55,247 INFO L93 Difference]: Finished difference Result 142822 states and 191504 transitions. [2021-11-12 23:15:55,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 23:15:55,248 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 4 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) Word has length 121 [2021-11-12 23:15:55,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:15:55,773 INFO L225 Difference]: With dead ends: 142822 [2021-11-12 23:15:55,774 INFO L226 Difference]: Without dead ends: 102894 [2021-11-12 23:15:56,080 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 240 GetRequests, 238 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 23:15:56,081 INFO L933 BasicCegarLoop]: 4000 mSDtfsCounter, 5498 mSDsluCounter, 3639 mSDsCounter, 0 mSdLazyCounter, 937 mSolverCounterSat, 865 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5927.29ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 5498 SdHoareTripleChecker+Valid, 7639 SdHoareTripleChecker+Invalid, 1803 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 24.96ms SdHoareTripleChecker+Time, 865 IncrementalHoareTripleChecker+Valid, 937 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6576.19ms IncrementalHoareTripleChecker+Time [2021-11-12 23:15:56,081 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5498 Valid, 7639 Invalid, 1803 Unknown, 0 Unchecked, 24.96ms Time], IncrementalHoareTripleChecker [865 Valid, 937 Invalid, 1 Unknown, 0 Unchecked, 6576.19ms Time] [2021-11-12 23:15:56,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102894 states. [2021-11-12 23:16:00,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102894 to 102762. [2021-11-12 23:16:01,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102762 states, 67558 states have (on average 1.209582876935374) internal successors, (81717), 69486 states have internal predecessors, (81717), 27574 states have call successors, (27574), 7716 states have call predecessors, (27574), 7627 states have return successors, (27937), 26909 states have call predecessors, (27937), 27571 states have call successors, (27937) [2021-11-12 23:16:01,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102762 states to 102762 states and 137228 transitions. [2021-11-12 23:16:01,919 INFO L78 Accepts]: Start accepts. Automaton has 102762 states and 137228 transitions. Word has length 121 [2021-11-12 23:16:01,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:16:01,919 INFO L470 AbstractCegarLoop]: Abstraction has 102762 states and 137228 transitions. [2021-11-12 23:16:01,920 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 4 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) [2021-11-12 23:16:01,920 INFO L276 IsEmpty]: Start isEmpty. Operand 102762 states and 137228 transitions. [2021-11-12 23:16:01,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2021-11-12 23:16:01,923 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:16:01,923 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 7, 7, 7, 7, 7, 7, 4, 4, 4, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:16:01,951 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e22c570-9d26-45c3-b540-bf83ae82539f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-12 23:16:02,139 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e22c570-9d26-45c3-b540-bf83ae82539f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:16:02,139 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-12 23:16:02,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:16:02,139 INFO L85 PathProgramCache]: Analyzing trace with hash -204149764, now seen corresponding path program 1 times [2021-11-12 23:16:02,140 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:16:02,141 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1384974261] [2021-11-12 23:16:02,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:16:02,141 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:16:02,141 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e22c570-9d26-45c3-b540-bf83ae82539f/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:16:02,141 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e22c570-9d26-45c3-b540-bf83ae82539f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:16:02,142 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e22c570-9d26-45c3-b540-bf83ae82539f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-12 23:16:03,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:16:03,288 INFO L263 TraceCheckSpWp]: Trace formula consists of 1067 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 23:16:03,292 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:16:04,098 INFO L134 CoverageAnalysis]: Checked inductivity of 321 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 321 trivial. 0 not checked. [2021-11-12 23:16:04,098 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:16:04,853 INFO L134 CoverageAnalysis]: Checked inductivity of 321 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 321 trivial. 0 not checked. [2021-11-12 23:16:04,853 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:16:04,853 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1384974261] [2021-11-12 23:16:04,853 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1384974261] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:16:04,853 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:16:04,853 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 5] imperfect sequences [] total 7 [2021-11-12 23:16:04,854 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [262547655] [2021-11-12 23:16:04,854 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:16:04,854 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-12 23:16:04,854 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:16:04,855 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-12 23:16:04,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-12 23:16:04,855 INFO L87 Difference]: Start difference. First operand 102762 states and 137228 transitions. Second operand has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 5 states have internal predecessors, (62), 2 states have call successors, (35), 4 states have call predecessors, (35), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2021-11-12 23:16:08,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:16:08,272 INFO L93 Difference]: Finished difference Result 102768 states and 137233 transitions. [2021-11-12 23:16:08,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-12 23:16:08,273 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 5 states have internal predecessors, (62), 2 states have call successors, (35), 4 states have call predecessors, (35), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) Word has length 153 [2021-11-12 23:16:08,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:16:08,845 INFO L225 Difference]: With dead ends: 102768 [2021-11-12 23:16:08,846 INFO L226 Difference]: Without dead ends: 102766 [2021-11-12 23:16:08,884 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 307 GetRequests, 299 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2021-11-12 23:16:08,886 INFO L933 BasicCegarLoop]: 2402 mSDtfsCounter, 2326 mSDsluCounter, 7190 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 56.63ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2339 SdHoareTripleChecker+Valid, 9592 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 23.63ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 62.63ms IncrementalHoareTripleChecker+Time [2021-11-12 23:16:08,886 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2339 Valid, 9592 Invalid, 26 Unknown, 0 Unchecked, 23.63ms Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 62.63ms Time] [2021-11-12 23:16:09,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102766 states. [2021-11-12 23:16:13,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102766 to 102766. [2021-11-12 23:16:13,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102766 states, 67561 states have (on average 1.2095735705510575) internal successors, (81720), 69489 states have internal predecessors, (81720), 27574 states have call successors, (27574), 7717 states have call predecessors, (27574), 7628 states have return successors, (27937), 26909 states have call predecessors, (27937), 27571 states have call successors, (27937) [2021-11-12 23:16:14,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102766 states to 102766 states and 137231 transitions. [2021-11-12 23:16:14,111 INFO L78 Accepts]: Start accepts. Automaton has 102766 states and 137231 transitions. Word has length 153 [2021-11-12 23:16:14,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:16:14,112 INFO L470 AbstractCegarLoop]: Abstraction has 102766 states and 137231 transitions. [2021-11-12 23:16:14,112 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 5 states have internal predecessors, (62), 2 states have call successors, (35), 4 states have call predecessors, (35), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2021-11-12 23:16:14,112 INFO L276 IsEmpty]: Start isEmpty. Operand 102766 states and 137231 transitions. [2021-11-12 23:16:14,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2021-11-12 23:16:14,115 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:16:14,115 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 7, 7, 7, 7, 7, 7, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:16:14,134 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e22c570-9d26-45c3-b540-bf83ae82539f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-12 23:16:14,315 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e22c570-9d26-45c3-b540-bf83ae82539f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:16:14,315 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-12 23:16:14,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:16:14,316 INFO L85 PathProgramCache]: Analyzing trace with hash -1424260497, now seen corresponding path program 1 times [2021-11-12 23:16:14,317 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:16:14,317 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1617096054] [2021-11-12 23:16:14,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:16:14,317 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:16:14,318 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e22c570-9d26-45c3-b540-bf83ae82539f/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:16:14,318 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e22c570-9d26-45c3-b540-bf83ae82539f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:16:14,321 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e22c570-9d26-45c3-b540-bf83ae82539f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-12 23:16:15,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:16:15,396 INFO L263 TraceCheckSpWp]: Trace formula consists of 1074 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 23:16:15,399 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:16:16,264 INFO L134 CoverageAnalysis]: Checked inductivity of 323 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 321 trivial. 0 not checked. [2021-11-12 23:16:16,264 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:16:16,822 INFO L134 CoverageAnalysis]: Checked inductivity of 323 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 321 trivial. 0 not checked. [2021-11-12 23:16:16,822 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:16:16,822 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1617096054] [2021-11-12 23:16:16,822 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1617096054] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-12 23:16:16,822 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-12 23:16:16,822 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2021-11-12 23:16:16,822 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1081002312] [2021-11-12 23:16:16,822 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:16:16,823 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-12 23:16:16,823 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:16:16,823 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-12 23:16:16,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-12 23:16:16,824 INFO L87 Difference]: Start difference. First operand 102766 states and 137231 transitions. Second operand has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2021-11-12 23:16:20,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:16:20,286 INFO L93 Difference]: Finished difference Result 102772 states and 137236 transitions. [2021-11-12 23:16:20,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-12 23:16:20,286 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 158 [2021-11-12 23:16:20,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:16:20,660 INFO L225 Difference]: With dead ends: 102772 [2021-11-12 23:16:20,660 INFO L226 Difference]: Without dead ends: 102770 [2021-11-12 23:16:20,947 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 317 GetRequests, 309 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 23:16:20,948 INFO L933 BasicCegarLoop]: 2405 mSDtfsCounter, 2348 mSDsluCounter, 4789 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 46.10ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2360 SdHoareTripleChecker+Valid, 7194 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 12.59ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 50.83ms IncrementalHoareTripleChecker+Time [2021-11-12 23:16:20,949 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2360 Valid, 7194 Invalid, 22 Unknown, 0 Unchecked, 12.59ms Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 50.83ms Time] [2021-11-12 23:16:21,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102770 states.