./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-intel-ixgbevf-ixgbevf.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_21c9182f-b899-4b83-92a0-503ee2fdb560/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21c9182f-b899-4b83-92a0-503ee2fdb560/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_21c9182f-b899-4b83-92a0-503ee2fdb560/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21c9182f-b899-4b83-92a0-503ee2fdb560/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-intel-ixgbevf-ixgbevf.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21c9182f-b899-4b83-92a0-503ee2fdb560/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_21c9182f-b899-4b83-92a0-503ee2fdb560/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 2ff699a14ff18600b4164aac890b6c04e9203457f89a66ec1bef9ac9dce5edac --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-13 01:29:40,151 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-13 01:29:40,153 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-13 01:29:40,220 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-13 01:29:40,221 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-13 01:29:40,226 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-13 01:29:40,229 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-13 01:29:40,231 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-13 01:29:40,233 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-13 01:29:40,234 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-13 01:29:40,235 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-13 01:29:40,237 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-13 01:29:40,240 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-13 01:29:40,245 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-13 01:29:40,247 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-13 01:29:40,250 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-13 01:29:40,254 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-13 01:29:40,257 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-13 01:29:40,259 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-13 01:29:40,265 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-13 01:29:40,267 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-13 01:29:40,269 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-13 01:29:40,270 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-13 01:29:40,271 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-13 01:29:40,275 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-13 01:29:40,275 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-13 01:29:40,276 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-13 01:29:40,277 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-13 01:29:40,277 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-13 01:29:40,278 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-13 01:29:40,279 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-13 01:29:40,280 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-13 01:29:40,281 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-13 01:29:40,282 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-13 01:29:40,283 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-13 01:29:40,284 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-13 01:29:40,285 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-13 01:29:40,285 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-13 01:29:40,286 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-13 01:29:40,287 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-13 01:29:40,288 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-13 01:29:40,289 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21c9182f-b899-4b83-92a0-503ee2fdb560/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-13 01:29:40,315 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-13 01:29:40,316 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-13 01:29:40,317 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-13 01:29:40,317 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-13 01:29:40,318 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-13 01:29:40,318 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-13 01:29:40,318 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-13 01:29:40,319 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-13 01:29:40,319 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-13 01:29:40,319 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-13 01:29:40,320 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-13 01:29:40,320 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-13 01:29:40,321 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-13 01:29:40,321 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-13 01:29:40,321 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-13 01:29:40,322 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-13 01:29:40,323 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-13 01:29:40,323 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-13 01:29:40,323 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-13 01:29:40,324 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-13 01:29:40,324 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-13 01:29:40,325 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-13 01:29:40,325 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-13 01:29:40,325 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-13 01:29:40,326 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-13 01:29:40,326 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-13 01:29:40,326 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-13 01:29:40,327 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-13 01:29:40,327 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 01:29:40,328 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-13 01:29:40,328 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-13 01:29:40,328 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-13 01:29:40,329 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-13 01:29:40,329 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-13 01:29:40,329 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-13 01:29:40,330 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-13 01:29:40,330 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-13 01:29:40,330 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_21c9182f-b899-4b83-92a0-503ee2fdb560/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21c9182f-b899-4b83-92a0-503ee2fdb560/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2ff699a14ff18600b4164aac890b6c04e9203457f89a66ec1bef9ac9dce5edac [2021-11-13 01:29:40,583 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-13 01:29:40,609 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-13 01:29:40,612 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-13 01:29:40,614 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-13 01:29:40,615 INFO L275 PluginConnector]: CDTParser initialized [2021-11-13 01:29:40,617 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21c9182f-b899-4b83-92a0-503ee2fdb560/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-intel-ixgbevf-ixgbevf.cil.i [2021-11-13 01:29:40,685 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21c9182f-b899-4b83-92a0-503ee2fdb560/bin/utaipan-vmNK8stdcF/data/524c6795a/04280be864d244ef85d9195de93f7bfd/FLAG97f7788ee [2021-11-13 01:29:41,802 INFO L306 CDTParser]: Found 1 translation units. [2021-11-13 01:29:41,803 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21c9182f-b899-4b83-92a0-503ee2fdb560/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-intel-ixgbevf-ixgbevf.cil.i [2021-11-13 01:29:41,871 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21c9182f-b899-4b83-92a0-503ee2fdb560/bin/utaipan-vmNK8stdcF/data/524c6795a/04280be864d244ef85d9195de93f7bfd/FLAG97f7788ee [2021-11-13 01:29:42,048 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21c9182f-b899-4b83-92a0-503ee2fdb560/bin/utaipan-vmNK8stdcF/data/524c6795a/04280be864d244ef85d9195de93f7bfd [2021-11-13 01:29:42,050 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-13 01:29:42,052 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-13 01:29:42,054 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-13 01:29:42,054 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-13 01:29:42,057 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-13 01:29:42,058 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 01:29:42" (1/1) ... [2021-11-13 01:29:42,059 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e2643cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:29:42, skipping insertion in model container [2021-11-13 01:29:42,060 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 01:29:42" (1/1) ... [2021-11-13 01:29:42,067 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-13 01:29:42,348 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 01:29:43,027 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 01:29:43,265 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 01:29:43,269 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 01:29:45,796 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 01:29:46,154 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 01:29:46,165 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 01:29:46,394 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 01:29:46,395 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 01:29:46,600 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 01:29:46,608 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 01:29:48,360 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_21c9182f-b899-4b83-92a0-503ee2fdb560/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-intel-ixgbevf-ixgbevf.cil.i[555016,555029] [2021-11-13 01:29:48,363 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_21c9182f-b899-4b83-92a0-503ee2fdb560/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-intel-ixgbevf-ixgbevf.cil.i[555185,555198] [2021-11-13 01:29:48,363 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_21c9182f-b899-4b83-92a0-503ee2fdb560/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-intel-ixgbevf-ixgbevf.cil.i[555352,555365] [2021-11-13 01:29:48,364 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_21c9182f-b899-4b83-92a0-503ee2fdb560/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-intel-ixgbevf-ixgbevf.cil.i[555520,555533] [2021-11-13 01:29:48,394 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 01:29:48,465 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) [2021-11-13 01:29:48,465 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@3b5f0419 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:29:48, skipping insertion in model container [2021-11-13 01:29:48,466 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-13 01:29:48,466 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-13 01:29:48,468 INFO L158 Benchmark]: Toolchain (without parser) took 6415.18ms. Allocated memory was 127.9MB in the beginning and 159.4MB in the end (delta: 31.5MB). Free memory was 73.8MB in the beginning and 57.1MB in the end (delta: 16.8MB). Peak memory consumption was 59.0MB. Max. memory is 16.1GB. [2021-11-13 01:29:48,469 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 88.1MB. Free memory was 48.2MB in the beginning and 48.1MB in the end (delta: 40.5kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-13 01:29:48,470 INFO L158 Benchmark]: CACSL2BoogieTranslator took 6412.29ms. Allocated memory was 127.9MB in the beginning and 159.4MB in the end (delta: 31.5MB). Free memory was 73.5MB in the beginning and 57.1MB in the end (delta: 16.5MB). Peak memory consumption was 59.0MB. Max. memory is 16.1GB. [2021-11-13 01:29:48,472 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 88.1MB. Free memory was 48.2MB in the beginning and 48.1MB in the end (delta: 40.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 6412.29ms. Allocated memory was 127.9MB in the beginning and 159.4MB in the end (delta: 31.5MB). Free memory was 73.5MB in the beginning and 57.1MB in the end (delta: 16.5MB). Peak memory consumption was 59.0MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 6295]: 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_21c9182f-b899-4b83-92a0-503ee2fdb560/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21c9182f-b899-4b83-92a0-503ee2fdb560/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_21c9182f-b899-4b83-92a0-503ee2fdb560/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21c9182f-b899-4b83-92a0-503ee2fdb560/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-intel-ixgbevf-ixgbevf.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21c9182f-b899-4b83-92a0-503ee2fdb560/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_21c9182f-b899-4b83-92a0-503ee2fdb560/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 2ff699a14ff18600b4164aac890b6c04e9203457f89a66ec1bef9ac9dce5edac --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-13 01:29:50,807 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-13 01:29:50,811 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-13 01:29:50,863 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-13 01:29:50,864 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-13 01:29:50,869 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-13 01:29:50,871 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-13 01:29:50,876 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-13 01:29:50,879 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-13 01:29:50,888 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-13 01:29:50,889 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-13 01:29:50,890 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-13 01:29:50,891 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-13 01:29:50,892 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-13 01:29:50,894 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-13 01:29:50,895 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-13 01:29:50,896 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-13 01:29:50,897 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-13 01:29:50,900 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-13 01:29:50,902 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-13 01:29:50,904 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-13 01:29:50,905 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-13 01:29:50,907 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-13 01:29:50,908 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-13 01:29:50,912 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-13 01:29:50,912 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-13 01:29:50,913 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-13 01:29:50,914 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-13 01:29:50,915 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-13 01:29:50,916 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-13 01:29:50,916 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-13 01:29:50,917 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-13 01:29:50,918 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-13 01:29:50,919 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-13 01:29:50,920 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-13 01:29:50,921 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-13 01:29:50,921 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-13 01:29:50,922 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-13 01:29:50,922 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-13 01:29:50,923 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-13 01:29:50,924 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-13 01:29:50,925 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21c9182f-b899-4b83-92a0-503ee2fdb560/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-13 01:29:50,950 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-13 01:29:50,950 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-13 01:29:50,951 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-13 01:29:50,951 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-13 01:29:50,951 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-13 01:29:50,951 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-13 01:29:50,954 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-13 01:29:50,954 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-13 01:29:50,955 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-13 01:29:50,955 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-13 01:29:50,957 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-13 01:29:50,958 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-13 01:29:50,958 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-13 01:29:50,958 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-13 01:29:50,958 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-13 01:29:50,959 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-13 01:29:50,959 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-13 01:29:50,959 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-13 01:29:50,959 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-13 01:29:50,959 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-13 01:29:50,960 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-13 01:29:50,960 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-13 01:29:50,960 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-13 01:29:50,961 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-13 01:29:50,961 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 01:29:50,961 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-13 01:29:50,962 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-13 01:29:50,962 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-13 01:29:50,962 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-13 01:29:50,962 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-13 01:29:50,962 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-13 01:29:50,963 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-13 01:29:50,963 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-13 01:29:50,963 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_21c9182f-b899-4b83-92a0-503ee2fdb560/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21c9182f-b899-4b83-92a0-503ee2fdb560/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2ff699a14ff18600b4164aac890b6c04e9203457f89a66ec1bef9ac9dce5edac [2021-11-13 01:29:51,424 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-13 01:29:51,447 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-13 01:29:51,449 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-13 01:29:51,451 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-13 01:29:51,452 INFO L275 PluginConnector]: CDTParser initialized [2021-11-13 01:29:51,453 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21c9182f-b899-4b83-92a0-503ee2fdb560/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-intel-ixgbevf-ixgbevf.cil.i [2021-11-13 01:29:51,535 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21c9182f-b899-4b83-92a0-503ee2fdb560/bin/utaipan-vmNK8stdcF/data/fd0183110/1ba8e61ec8b24c87a3b9e293250c5094/FLAG46bc92458 [2021-11-13 01:29:52,824 INFO L306 CDTParser]: Found 1 translation units. [2021-11-13 01:29:52,825 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21c9182f-b899-4b83-92a0-503ee2fdb560/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-intel-ixgbevf-ixgbevf.cil.i [2021-11-13 01:29:52,912 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21c9182f-b899-4b83-92a0-503ee2fdb560/bin/utaipan-vmNK8stdcF/data/fd0183110/1ba8e61ec8b24c87a3b9e293250c5094/FLAG46bc92458 [2021-11-13 01:29:52,986 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21c9182f-b899-4b83-92a0-503ee2fdb560/bin/utaipan-vmNK8stdcF/data/fd0183110/1ba8e61ec8b24c87a3b9e293250c5094 [2021-11-13 01:29:52,990 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-13 01:29:52,994 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-13 01:29:52,997 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-13 01:29:52,997 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-13 01:29:53,001 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-13 01:29:53,003 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 01:29:52" (1/1) ... [2021-11-13 01:29:53,004 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2572df30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:29:53, skipping insertion in model container [2021-11-13 01:29:53,005 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 01:29:52" (1/1) ... [2021-11-13 01:29:53,012 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-13 01:29:53,342 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 01:29:54,178 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 01:29:57,108 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 01:29:59,869 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_21c9182f-b899-4b83-92a0-503ee2fdb560/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-intel-ixgbevf-ixgbevf.cil.i[555016,555029] [2021-11-13 01:29:59,873 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_21c9182f-b899-4b83-92a0-503ee2fdb560/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-intel-ixgbevf-ixgbevf.cil.i[555185,555198] [2021-11-13 01:29:59,874 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_21c9182f-b899-4b83-92a0-503ee2fdb560/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-intel-ixgbevf-ixgbevf.cil.i[555352,555365] [2021-11-13 01:29:59,874 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_21c9182f-b899-4b83-92a0-503ee2fdb560/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-intel-ixgbevf-ixgbevf.cil.i[555520,555533] [2021-11-13 01:29:59,916 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 01:30:00,071 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-13 01:30:00,173 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 01:30:00,732 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_21c9182f-b899-4b83-92a0-503ee2fdb560/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-intel-ixgbevf-ixgbevf.cil.i[555016,555029] [2021-11-13 01:30:00,733 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_21c9182f-b899-4b83-92a0-503ee2fdb560/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-intel-ixgbevf-ixgbevf.cil.i[555185,555198] [2021-11-13 01:30:00,733 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_21c9182f-b899-4b83-92a0-503ee2fdb560/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-intel-ixgbevf-ixgbevf.cil.i[555352,555365] [2021-11-13 01:30:00,734 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_21c9182f-b899-4b83-92a0-503ee2fdb560/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-intel-ixgbevf-ixgbevf.cil.i[555520,555533] [2021-11-13 01:30:00,785 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 01:30:00,838 INFO L203 MainTranslator]: Completed pre-run [2021-11-13 01:30:01,895 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_21c9182f-b899-4b83-92a0-503ee2fdb560/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-intel-ixgbevf-ixgbevf.cil.i[555016,555029] [2021-11-13 01:30:01,896 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_21c9182f-b899-4b83-92a0-503ee2fdb560/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-intel-ixgbevf-ixgbevf.cil.i[555185,555198] [2021-11-13 01:30:01,896 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_21c9182f-b899-4b83-92a0-503ee2fdb560/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-intel-ixgbevf-ixgbevf.cil.i[555352,555365] [2021-11-13 01:30:01,897 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_21c9182f-b899-4b83-92a0-503ee2fdb560/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-intel-ixgbevf-ixgbevf.cil.i[555520,555533] [2021-11-13 01:30:01,915 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 01:30:02,520 INFO L208 MainTranslator]: Completed translation [2021-11-13 01:30:02,521 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:30:02 WrapperNode [2021-11-13 01:30:02,522 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-13 01:30:02,523 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-13 01:30:02,523 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-13 01:30:02,524 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-13 01:30:02,531 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:30:02" (1/1) ... [2021-11-13 01:30:02,696 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:30:02" (1/1) ... [2021-11-13 01:30:03,063 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-13 01:30:03,065 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-13 01:30:03,065 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-13 01:30:03,065 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-13 01:30:03,075 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:30:02" (1/1) ... [2021-11-13 01:30:03,076 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:30:02" (1/1) ... [2021-11-13 01:30:03,177 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:30:02" (1/1) ... [2021-11-13 01:30:03,178 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:30:02" (1/1) ... [2021-11-13 01:30:03,428 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:30:02" (1/1) ... [2021-11-13 01:30:03,476 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:30:02" (1/1) ... [2021-11-13 01:30:03,550 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:30:02" (1/1) ... [2021-11-13 01:30:03,616 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-13 01:30:03,617 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-13 01:30:03,618 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-13 01:30:03,618 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-13 01:30:03,619 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:30:02" (1/1) ... [2021-11-13 01:30:03,626 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 01:30:03,639 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21c9182f-b899-4b83-92a0-503ee2fdb560/bin/utaipan-vmNK8stdcF/z3 [2021-11-13 01:30:03,658 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21c9182f-b899-4b83-92a0-503ee2fdb560/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-13 01:30:03,692 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21c9182f-b899-4b83-92a0-503ee2fdb560/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-13 01:30:03,723 INFO L130 BoogieDeclarations]: Found specification of procedure ipv6_hdr [2021-11-13 01:30:03,724 INFO L138 BoogieDeclarations]: Found implementation of procedure ipv6_hdr [2021-11-13 01:30:03,724 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2021-11-13 01:30:03,724 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2021-11-13 01:30:03,724 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-13 01:30:03,724 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-13 01:30:03,725 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_automaton_state_0_6 [2021-11-13 01:30:03,725 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_automaton_state_0_6 [2021-11-13 01:30:03,725 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_clean_rx_irq [2021-11-13 01:30:03,725 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_clean_rx_irq [2021-11-13 01:30:03,725 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_setup_rx_resources [2021-11-13 01:30:03,726 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_setup_rx_resources [2021-11-13 01:30:03,726 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-13 01:30:03,726 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-13 01:30:03,726 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_tx_ctxtdesc [2021-11-13 01:30:03,726 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_tx_ctxtdesc [2021-11-13 01:30:03,726 INFO L130 BoogieDeclarations]: Found specification of procedure skb_header_pointer [2021-11-13 01:30:03,727 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_header_pointer [2021-11-13 01:30:03,727 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2021-11-13 01:30:03,727 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2021-11-13 01:30:03,727 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_write_eitr [2021-11-13 01:30:03,727 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_write_eitr [2021-11-13 01:30:03,728 INFO L130 BoogieDeclarations]: Found specification of procedure usleep_range [2021-11-13 01:30:03,728 INFO L138 BoogieDeclarations]: Found implementation of procedure usleep_range [2021-11-13 01:30:03,728 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-11-13 01:30:03,729 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-11-13 01:30:03,729 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_set_uc_addr_vf [2021-11-13 01:30:03,729 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_set_uc_addr_vf [2021-11-13 01:30:03,730 INFO L130 BoogieDeclarations]: Found specification of procedure netif_napi_del [2021-11-13 01:30:03,730 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_napi_del [2021-11-13 01:30:03,730 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-11-13 01:30:03,730 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-11-13 01:30:03,731 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2021-11-13 01:30:03,731 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2021-11-13 01:30:03,731 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u32~0~X~~u32~0~X~~bool~0~TO~~s32~0 [2021-11-13 01:30:03,731 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u32~0~X~~u32~0~X~~bool~0~TO~~s32~0 [2021-11-13 01:30:03,732 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-11-13 01:30:03,732 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-11-13 01:30:03,732 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_desc_unused [2021-11-13 01:30:03,732 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_desc_unused [2021-11-13 01:30:03,733 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_poll_for_ack [2021-11-13 01:30:03,734 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_poll_for_ack [2021-11-13 01:30:03,735 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_setup_tx_resources [2021-11-13 01:30:03,735 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_setup_tx_resources [2021-11-13 01:30:03,736 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_remove [2021-11-13 01:30:03,736 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_remove [2021-11-13 01:30:03,736 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2021-11-13 01:30:03,736 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2021-11-13 01:30:03,737 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-13 01:30:03,737 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-13 01:30:03,737 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2021-11-13 01:30:03,738 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2021-11-13 01:30:03,738 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2021-11-13 01:30:03,738 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2021-11-13 01:30:03,738 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2021-11-13 01:30:03,739 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2021-11-13 01:30:03,739 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-13 01:30:03,739 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-13 01:30:03,740 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_attach [2021-11-13 01:30:03,740 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_attach [2021-11-13 01:30:03,740 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-13 01:30:03,741 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2021-11-13 01:30:03,741 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2021-11-13 01:30:03,741 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_resume [2021-11-13 01:30:03,741 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_resume [2021-11-13 01:30:03,741 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2021-11-13 01:30:03,741 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-13 01:30:03,742 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-13 01:30:03,742 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-13 01:30:03,742 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_sync [2021-11-13 01:30:03,743 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_sync [2021-11-13 01:30:03,743 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_work_sync [2021-11-13 01:30:03,743 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_work_sync [2021-11-13 01:30:03,743 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_detach [2021-11-13 01:30:03,744 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_detach [2021-11-13 01:30:03,744 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_write_mbx_vf [2021-11-13 01:30:03,744 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_write_mbx_vf [2021-11-13 01:30:03,744 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_read_posted_mbx [2021-11-13 01:30:03,744 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_read_posted_mbx [2021-11-13 01:30:03,745 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_read_mbx_vf [2021-11-13 01:30:03,746 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_read_mbx_vf [2021-11-13 01:30:03,746 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-11-13 01:30:03,746 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-11-13 01:30:03,746 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_bh [2021-11-13 01:30:03,746 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_bh [2021-11-13 01:30:03,747 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_reinit_locked [2021-11-13 01:30:03,747 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_reinit_locked [2021-11-13 01:30:03,747 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_up [2021-11-13 01:30:03,747 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_up [2021-11-13 01:30:03,748 INFO L130 BoogieDeclarations]: Found specification of procedure pci_save_state [2021-11-13 01:30:03,748 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_save_state [2021-11-13 01:30:03,748 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-11-13 01:30:03,748 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-11-13 01:30:03,748 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2021-11-13 01:30:03,748 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2021-11-13 01:30:03,749 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_free_irq [2021-11-13 01:30:03,749 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_free_irq [2021-11-13 01:30:03,749 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_set_rar_vf [2021-11-13 01:30:03,750 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_set_rar_vf [2021-11-13 01:30:03,750 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-13 01:30:03,750 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-13 01:30:03,751 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_bh_78 [2021-11-13 01:30:03,751 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_bh_78 [2021-11-13 01:30:03,754 INFO L130 BoogieDeclarations]: Found specification of procedure skb_network_header_len [2021-11-13 01:30:03,754 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_network_header_len [2021-11-13 01:30:03,755 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~C_ULONG~X~C_ULONG~X~C_INT~X~$Pointer$~TO~~dma_addr_t~0 [2021-11-13 01:30:03,755 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~C_ULONG~X~C_ULONG~X~C_INT~X~$Pointer$~TO~~dma_addr_t~0 [2021-11-13 01:30:03,755 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-11-13 01:30:03,756 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-11-13 01:30:03,757 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_set_vfta_vf [2021-11-13 01:30:03,757 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_set_vfta_vf [2021-11-13 01:30:03,757 INFO L130 BoogieDeclarations]: Found specification of procedure vzalloc [2021-11-13 01:30:03,764 INFO L138 BoogieDeclarations]: Found implementation of procedure vzalloc [2021-11-13 01:30:03,765 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-13 01:30:03,765 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-13 01:30:03,765 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_down [2021-11-13 01:30:03,765 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_down [2021-11-13 01:30:03,765 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2021-11-13 01:30:03,765 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2021-11-13 01:30:03,766 INFO L130 BoogieDeclarations]: Found specification of procedure skb_transport_header [2021-11-13 01:30:03,766 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_transport_header [2021-11-13 01:30:03,766 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-11-13 01:30:03,766 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-11-13 01:30:03,767 INFO L130 BoogieDeclarations]: Found specification of procedure map_vector_to_txq [2021-11-13 01:30:03,767 INFO L138 BoogieDeclarations]: Found implementation of procedure map_vector_to_txq [2021-11-13 01:30:03,767 INFO L130 BoogieDeclarations]: Found specification of procedure skb_network_offset [2021-11-13 01:30:03,767 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_network_offset [2021-11-13 01:30:03,767 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_free_all_rx_resources [2021-11-13 01:30:03,767 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_free_all_rx_resources [2021-11-13 01:30:03,767 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-11-13 01:30:03,768 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-11-13 01:30:03,768 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_bh_94 [2021-11-13 01:30:03,768 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_bh_94 [2021-11-13 01:30:03,768 INFO L130 BoogieDeclarations]: Found specification of procedure vfree [2021-11-13 01:30:03,768 INFO L138 BoogieDeclarations]: Found implementation of procedure vfree [2021-11-13 01:30:03,768 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_tx_timeout [2021-11-13 01:30:03,768 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_tx_timeout [2021-11-13 01:30:03,769 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-11-13 01:30:03,769 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-11-13 01:30:03,769 INFO L130 BoogieDeclarations]: Found specification of procedure __udelay [2021-11-13 01:30:03,769 INFO L138 BoogieDeclarations]: Found implementation of procedure __udelay [2021-11-13 01:30:03,769 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_negotiate_api [2021-11-13 01:30:03,769 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_negotiate_api [2021-11-13 01:30:03,769 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2021-11-13 01:30:03,769 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2021-11-13 01:30:03,770 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-13 01:30:03,770 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2021-11-13 01:30:03,770 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2021-11-13 01:30:03,770 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2021-11-13 01:30:03,770 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2021-11-13 01:30:03,770 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2021-11-13 01:30:03,770 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2021-11-13 01:30:03,771 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_alloc_rx_buffers [2021-11-13 01:30:03,771 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_alloc_rx_buffers [2021-11-13 01:30:03,771 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer [2021-11-13 01:30:03,771 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer [2021-11-13 01:30:03,771 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_init_interrupt_scheme [2021-11-13 01:30:03,771 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_init_interrupt_scheme [2021-11-13 01:30:03,771 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_single_attrs [2021-11-13 01:30:03,772 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_single_attrs [2021-11-13 01:30:03,772 INFO L130 BoogieDeclarations]: Found specification of procedure is_valid_ether_addr [2021-11-13 01:30:03,772 INFO L138 BoogieDeclarations]: Found implementation of procedure is_valid_ether_addr [2021-11-13 01:30:03,772 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-13 01:30:03,772 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-13 01:30:03,772 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-11-13 01:30:03,772 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-11-13 01:30:03,773 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-13 01:30:03,773 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-13 01:30:03,773 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2021-11-13 01:30:03,773 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2021-11-13 01:30:03,773 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_free_tx_resources [2021-11-13 01:30:03,774 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_free_tx_resources [2021-11-13 01:30:03,774 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-11-13 01:30:03,774 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_init_hw_vf [2021-11-13 01:30:03,774 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_init_hw_vf [2021-11-13 01:30:03,775 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headlen [2021-11-13 01:30:03,775 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headlen [2021-11-13 01:30:03,775 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_maybe_stop_tx [2021-11-13 01:30:03,775 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_maybe_stop_tx [2021-11-13 01:30:03,775 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_check_for_msg_vf [2021-11-13 01:30:03,775 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_check_for_msg_vf [2021-11-13 01:30:03,775 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~C_INT~X~$Pointer$~TO~C_INT [2021-11-13 01:30:03,776 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~C_INT~X~$Pointer$~TO~C_INT [2021-11-13 01:30:03,776 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2021-11-13 01:30:03,776 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2021-11-13 01:30:03,776 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~C_ULONG~X~C_INT~X~$Pointer$~TO~VOID [2021-11-13 01:30:03,776 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~C_ULONG~X~C_INT~X~$Pointer$~TO~VOID [2021-11-13 01:30:03,776 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_busy_poll_recv [2021-11-13 01:30:03,776 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_busy_poll_recv [2021-11-13 01:30:03,777 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_write_posted_mbx [2021-11-13 01:30:03,777 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_write_posted_mbx [2021-11-13 01:30:03,777 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u32~0~X~$Pointer$~TO~~s32~0 [2021-11-13 01:30:03,777 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u32~0~X~$Pointer$~TO~~s32~0 [2021-11-13 01:30:03,777 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2021-11-13 01:30:03,777 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2021-11-13 01:30:03,777 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_map_page [2021-11-13 01:30:03,778 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_map_page [2021-11-13 01:30:03,778 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-11-13 01:30:03,778 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-11-13 01:30:03,778 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~~s32~0 [2021-11-13 01:30:03,778 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~~s32~0 [2021-11-13 01:30:03,778 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_init_last_counter_stats [2021-11-13 01:30:03,778 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_init_last_counter_stats [2021-11-13 01:30:03,779 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_io_resume [2021-11-13 01:30:03,779 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_io_resume [2021-11-13 01:30:03,779 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2021-11-13 01:30:03,779 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2021-11-13 01:30:03,779 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_up_complete [2021-11-13 01:30:03,779 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_up_complete [2021-11-13 01:30:03,779 INFO L130 BoogieDeclarations]: Found specification of procedure u64_stats_fetch_begin_bh [2021-11-13 01:30:03,780 INFO L138 BoogieDeclarations]: Found implementation of procedure u64_stats_fetch_begin_bh [2021-11-13 01:30:03,780 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_set_ivar [2021-11-13 01:30:03,780 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_set_ivar [2021-11-13 01:30:03,780 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_check_for_bit_vf [2021-11-13 01:30:03,780 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_check_for_bit_vf [2021-11-13 01:30:03,780 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-11-13 01:30:03,780 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-11-13 01:30:03,781 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2021-11-13 01:30:03,781 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2021-11-13 01:30:03,781 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_shutdown [2021-11-13 01:30:03,781 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_shutdown [2021-11-13 01:30:03,781 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2021-11-13 01:30:03,781 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_reset_interrupt_capability [2021-11-13 01:30:03,781 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_reset_interrupt_capability [2021-11-13 01:30:03,782 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-13 01:30:03,782 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-13 01:30:03,782 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_bh [2021-11-13 01:30:03,782 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_bh [2021-11-13 01:30:03,782 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_nway_reset [2021-11-13 01:30:03,783 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_nway_reset [2021-11-13 01:30:03,787 INFO L130 BoogieDeclarations]: Found specification of procedure tcp_hdr [2021-11-13 01:30:03,788 INFO L138 BoogieDeclarations]: Found implementation of procedure tcp_hdr [2021-11-13 01:30:03,788 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_obtain_mbx_lock_vf [2021-11-13 01:30:03,788 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_obtain_mbx_lock_vf [2021-11-13 01:30:03,788 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_clean_tx_ring [2021-11-13 01:30:03,788 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_clean_tx_ring [2021-11-13 01:30:03,788 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_check_for_rst_vf [2021-11-13 01:30:03,788 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_check_for_rst_vf [2021-11-13 01:30:03,789 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-13 01:30:03,789 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_read_v2p_mailbox [2021-11-13 01:30:03,791 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_read_v2p_mailbox [2021-11-13 01:30:03,791 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2021-11-13 01:30:03,791 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2021-11-13 01:30:03,791 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-13 01:30:03,791 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-13 01:30:03,791 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_check_for_ack_vf [2021-11-13 01:30:03,792 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_check_for_ack_vf [2021-11-13 01:30:03,792 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-13 01:30:03,792 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2021-11-13 01:30:03,792 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-13 01:30:03,792 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-13 01:30:03,792 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-13 01:30:03,792 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_update_stats [2021-11-13 01:30:03,793 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_update_stats [2021-11-13 01:30:03,793 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_irq_enable [2021-11-13 01:30:03,793 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_irq_enable [2021-11-13 01:30:03,793 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-11-13 01:30:03,793 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-11-13 01:30:03,793 INFO L130 BoogieDeclarations]: Found specification of procedure request_irq [2021-11-13 01:30:03,793 INFO L138 BoogieDeclarations]: Found implementation of procedure request_irq [2021-11-13 01:30:03,793 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2021-11-13 01:30:03,794 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2021-11-13 01:30:03,794 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2021-11-13 01:30:03,794 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_start_hw_vf [2021-11-13 01:30:03,794 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_start_hw_vf [2021-11-13 01:30:03,794 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_unlock [2021-11-13 01:30:03,794 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_unlock [2021-11-13 01:30:03,794 INFO L130 BoogieDeclarations]: Found specification of procedure kmemcheck_mark_initialized [2021-11-13 01:30:03,795 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemcheck_mark_initialized [2021-11-13 01:30:03,795 INFO L130 BoogieDeclarations]: Found specification of procedure napi_hash_del [2021-11-13 01:30:03,795 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_hash_del [2021-11-13 01:30:03,795 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2021-11-13 01:30:03,795 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2021-11-13 01:30:03,795 INFO L130 BoogieDeclarations]: Found specification of procedure u64_stats_update_begin [2021-11-13 01:30:03,795 INFO L138 BoogieDeclarations]: Found implementation of procedure u64_stats_update_begin [2021-11-13 01:30:03,795 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_stop_all_queues [2021-11-13 01:30:03,796 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_stop_all_queues [2021-11-13 01:30:03,796 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_set_rx_mode [2021-11-13 01:30:03,796 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_set_rx_mode [2021-11-13 01:30:03,796 INFO L130 BoogieDeclarations]: Found specification of procedure ip_hdr [2021-11-13 01:30:03,796 INFO L138 BoogieDeclarations]: Found implementation of procedure ip_hdr [2021-11-13 01:30:03,796 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_cmd_speed_set [2021-11-13 01:30:03,796 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_cmd_speed_set [2021-11-13 01:30:03,797 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-13 01:30:03,797 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-13 01:30:03,797 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u32~0~X~$Pointer$~X~~u32~0~TO~~s32~0 [2021-11-13 01:30:03,797 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u32~0~X~$Pointer$~X~~u32~0~TO~~s32~0 [2021-11-13 01:30:03,797 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_poll_for_msg [2021-11-13 01:30:03,797 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_poll_for_msg [2021-11-13 01:30:03,797 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_suspend [2021-11-13 01:30:03,798 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_suspend [2021-11-13 01:30:03,798 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_unmap_page [2021-11-13 01:30:03,798 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_unmap_page [2021-11-13 01:30:03,798 INFO L130 BoogieDeclarations]: Found specification of procedure dma_unmap_single_attrs [2021-11-13 01:30:03,798 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_unmap_single_attrs [2021-11-13 01:30:03,798 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2021-11-13 01:30:03,798 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2021-11-13 01:30:03,799 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-13 01:30:03,799 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-11-13 01:30:03,799 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-11-13 01:30:03,799 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_master [2021-11-13 01:30:03,799 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_master [2021-11-13 01:30:03,799 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2021-11-13 01:30:03,799 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2021-11-13 01:30:03,799 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_link_test [2021-11-13 01:30:03,800 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_link_test [2021-11-13 01:30:03,800 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-13 01:30:03,800 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_vlan_rx_add_vid [2021-11-13 01:30:03,800 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_vlan_rx_add_vid [2021-11-13 01:30:03,800 INFO L130 BoogieDeclarations]: Found specification of procedure map_vector_to_rxq [2021-11-13 01:30:03,800 INFO L138 BoogieDeclarations]: Found implementation of procedure map_vector_to_rxq [2021-11-13 01:30:03,800 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~X~~bool~0~TO~~s32~0 [2021-11-13 01:30:03,801 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~X~~bool~0~TO~~s32~0 [2021-11-13 01:30:03,801 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~~s32~0 [2021-11-13 01:30:03,801 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~~s32~0 [2021-11-13 01:30:03,801 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-13 01:30:03,801 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-13 01:30:03,801 INFO L130 BoogieDeclarations]: Found specification of procedure is_zero_ether_addr [2021-11-13 01:30:03,801 INFO L138 BoogieDeclarations]: Found implementation of procedure is_zero_ether_addr [2021-11-13 01:30:03,802 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2021-11-13 01:30:03,802 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-13 01:30:03,802 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-13 01:30:03,802 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_get_mac_addr_vf [2021-11-13 01:30:03,802 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_get_mac_addr_vf [2021-11-13 01:30:03,802 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_configure [2021-11-13 01:30:03,802 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_configure [2021-11-13 01:30:03,802 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_free_all_tx_resources [2021-11-13 01:30:03,803 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_free_all_tx_resources [2021-11-13 01:30:03,803 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2021-11-13 01:30:03,803 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2021-11-13 01:30:03,803 INFO L130 BoogieDeclarations]: Found specification of procedure dma_mapping_error [2021-11-13 01:30:03,803 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_mapping_error [2021-11-13 01:30:03,803 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_get_queues [2021-11-13 01:30:03,803 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_get_queues [2021-11-13 01:30:03,803 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-11-13 01:30:03,804 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-11-13 01:30:03,804 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_request_irq [2021-11-13 01:30:03,804 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_request_irq [2021-11-13 01:30:03,804 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_write_msg_read_ack [2021-11-13 01:30:03,804 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_write_msg_read_ack [2021-11-13 01:30:03,804 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-13 01:30:03,804 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-13 01:30:03,805 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2021-11-13 01:30:03,805 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2021-11-13 01:30:03,805 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2021-11-13 01:30:03,805 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2021-11-13 01:30:03,805 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-11-13 01:30:03,805 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-11-13 01:30:03,805 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_irq [2021-11-13 01:30:03,805 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_irq [2021-11-13 01:30:03,806 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_open [2021-11-13 01:30:03,806 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_open [2021-11-13 01:30:03,806 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~~u16~0~TO~~s32~0 [2021-11-13 01:30:03,806 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~~u16~0~TO~~s32~0 [2021-11-13 01:30:03,806 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_bh_93 [2021-11-13 01:30:03,806 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_bh_93 [2021-11-13 01:30:03,806 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_ixgbevf_exit_module_17_2 [2021-11-13 01:30:03,807 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_ixgbevf_exit_module_17_2 [2021-11-13 01:30:03,807 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_check_mac_link_vf [2021-11-13 01:30:03,807 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_check_mac_link_vf [2021-11-13 01:30:03,807 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_clear_interrupt_scheme [2021-11-13 01:30:03,807 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_clear_interrupt_scheme [2021-11-13 01:30:03,807 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_get_regs_len [2021-11-13 01:30:03,807 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_get_regs_len [2021-11-13 01:30:03,808 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2021-11-13 01:30:03,808 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2021-11-13 01:30:03,808 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2021-11-13 01:30:03,808 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2021-11-13 01:30:03,808 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-11-13 01:30:03,812 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-11-13 01:30:03,812 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2021-11-13 01:30:03,813 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2021-11-13 01:30:03,813 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_update_mc_addr_list_vf [2021-11-13 01:30:03,813 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_update_mc_addr_list_vf [2021-11-13 01:30:03,813 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_free_rx_resources [2021-11-13 01:30:03,813 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_free_rx_resources [2021-11-13 01:30:03,813 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-11-13 01:30:03,813 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-11-13 01:30:03,814 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_bh_77 [2021-11-13 01:30:03,814 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_bh_77 [2021-11-13 01:30:03,814 INFO L130 BoogieDeclarations]: Found specification of procedure skb_network_header [2021-11-13 01:30:03,814 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_network_header [2021-11-13 01:30:03,814 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-13 01:30:03,814 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-13 01:30:03,814 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_init_mbx_params_vf [2021-11-13 01:30:03,815 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_init_mbx_params_vf [2021-11-13 01:30:03,815 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-11-13 01:30:03,815 INFO L130 BoogieDeclarations]: Found specification of procedure net_ratelimit [2021-11-13 01:30:03,815 INFO L138 BoogieDeclarations]: Found implementation of procedure net_ratelimit [2021-11-13 01:30:03,815 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2021-11-13 01:30:03,815 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_free_q_vectors [2021-11-13 01:30:03,815 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_free_q_vectors [2021-11-13 01:30:03,816 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2021-11-13 01:30:03,816 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2021-11-13 01:30:03,816 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-13 01:30:03,816 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-13 01:30:03,816 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_disable_rx_queue [2021-11-13 01:30:03,816 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_disable_rx_queue [2021-11-13 01:30:03,816 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_reset [2021-11-13 01:30:03,816 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_reset [2021-11-13 01:30:03,817 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_close [2021-11-13 01:30:03,817 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_close [2021-11-13 01:30:03,817 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device_mem [2021-11-13 01:30:03,817 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device_mem [2021-11-13 01:30:03,817 INFO L130 BoogieDeclarations]: Found specification of procedure u64_stats_fetch_retry_bh [2021-11-13 01:30:03,817 INFO L138 BoogieDeclarations]: Found implementation of procedure u64_stats_fetch_retry_bh [2021-11-13 01:30:03,817 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2021-11-13 01:30:03,818 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2021-11-13 01:30:03,818 INFO L130 BoogieDeclarations]: Found specification of procedure vmalloc [2021-11-13 01:30:03,818 INFO L138 BoogieDeclarations]: Found implementation of procedure vmalloc [2021-11-13 01:30:03,818 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2021-11-13 01:30:03,818 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2021-11-13 01:30:03,818 INFO L130 BoogieDeclarations]: Found specification of procedure dma_set_mask_and_coherent [2021-11-13 01:30:03,818 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_set_mask_and_coherent [2021-11-13 01:30:03,819 INFO L130 BoogieDeclarations]: Found specification of procedure tcp_hdrlen [2021-11-13 01:30:03,819 INFO L138 BoogieDeclarations]: Found implementation of procedure tcp_hdrlen [2021-11-13 01:30:03,819 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_stop_queue [2021-11-13 01:30:03,819 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_stop_queue [2021-11-13 01:30:03,819 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_lock [2021-11-13 01:30:03,819 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_lock [2021-11-13 01:30:03,819 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-13 01:30:03,820 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-13 01:30:03,820 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2021-11-13 01:30:03,820 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2021-11-13 01:30:03,820 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_clean_rx_ring [2021-11-13 01:30:03,820 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_clean_rx_ring [2021-11-13 01:30:03,820 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_stop_hw_vf [2021-11-13 01:30:03,820 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_stop_hw_vf [2021-11-13 01:30:03,820 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_automaton_state_1_6 [2021-11-13 01:30:03,821 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_automaton_state_1_6 [2021-11-13 01:30:03,821 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_reset_hw_vf [2021-11-13 01:30:03,821 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_reset_hw_vf [2021-11-13 01:30:03,821 INFO L130 BoogieDeclarations]: Found specification of procedure dma_alloc_attrs [2021-11-13 01:30:03,821 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_alloc_attrs [2021-11-13 01:30:03,821 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2021-11-13 01:30:03,821 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2021-11-13 01:30:03,822 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_unmap_and_free_tx_resource [2021-11-13 01:30:03,822 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_unmap_and_free_tx_resource [2021-11-13 01:30:03,822 INFO L130 BoogieDeclarations]: Found specification of procedure dma_unmap_page [2021-11-13 01:30:03,822 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_unmap_page [2021-11-13 01:30:03,822 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-11-13 01:30:03,822 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-11-13 01:30:03,822 INFO L130 BoogieDeclarations]: Found specification of procedure netpoll_trap [2021-11-13 01:30:03,822 INFO L138 BoogieDeclarations]: Found implementation of procedure netpoll_trap [2021-11-13 01:30:05,729 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-13 01:36:36,584 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-13 01:36:36,735 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-13 01:36:36,735 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-11-13 01:36:36,742 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:36:36 BoogieIcfgContainer [2021-11-13 01:36:36,742 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-13 01:36:36,744 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-13 01:36:36,744 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-13 01:36:36,747 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-13 01:36:36,747 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 01:29:52" (1/3) ... [2021-11-13 01:36:36,749 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@314d16e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 01:36:36, skipping insertion in model container [2021-11-13 01:36:36,749 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:30:02" (2/3) ... [2021-11-13 01:36:36,750 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@314d16e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 01:36:36, skipping insertion in model container [2021-11-13 01:36:36,750 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:36:36" (3/3) ... [2021-11-13 01:36:36,751 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-intel-ixgbevf-ixgbevf.cil.i [2021-11-13 01:36:36,757 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-13 01:36:36,758 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-11-13 01:36:36,836 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-13 01:36:36,849 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 [2021-11-13 01:36:36,850 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-11-13 01:36:36,948 INFO L276 IsEmpty]: Start isEmpty. Operand has 3718 states, 2595 states have (on average 1.2709055876685935) internal successors, (3298), 2639 states have internal predecessors, (3298), 915 states have call successors, (915), 206 states have call predecessors, (915), 205 states have return successors, (908), 904 states have call predecessors, (908), 908 states have call successors, (908) [2021-11-13 01:36:36,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 348 [2021-11-13 01:36:36,976 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:36:36,977 INFO L514 BasicCegarLoop]: trace histogram [30, 30, 29, 29, 29, 29, 29, 29, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 01:36:36,978 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)] === [2021-11-13 01:36:36,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:36:36,983 INFO L85 PathProgramCache]: Analyzing trace with hash 2012363121, now seen corresponding path program 1 times [2021-11-13 01:36:37,012 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 01:36:37,013 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [356714675] [2021-11-13 01:36:37,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:36:37,014 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 01:36:37,014 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21c9182f-b899-4b83-92a0-503ee2fdb560/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 01:36:37,024 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21c9182f-b899-4b83-92a0-503ee2fdb560/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 01:36:37,037 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21c9182f-b899-4b83-92a0-503ee2fdb560/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-13 01:36:42,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:36:42,937 INFO L263 TraceCheckSpWp]: Trace formula consists of 2618 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-13 01:36:42,958 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:36:44,118 INFO L134 CoverageAnalysis]: Checked inductivity of 3741 backedges. 87 proven. 0 refuted. 0 times theorem prover too weak. 3654 trivial. 0 not checked. [2021-11-13 01:36:44,118 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:36:45,279 INFO L134 CoverageAnalysis]: Checked inductivity of 3741 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3741 trivial. 0 not checked. [2021-11-13 01:36:45,280 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 01:36:45,280 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [356714675] [2021-11-13 01:36:45,282 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [356714675] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 01:36:45,282 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 01:36:45,283 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-13 01:36:45,284 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [851117699] [2021-11-13 01:36:45,287 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 01:36:45,295 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-13 01:36:45,296 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 01:36:45,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-13 01:36:45,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-13 01:36:45,345 INFO L87 Difference]: Start difference. First operand has 3718 states, 2595 states have (on average 1.2709055876685935) internal successors, (3298), 2639 states have internal predecessors, (3298), 915 states have call successors, (915), 206 states have call predecessors, (915), 205 states have return successors, (908), 904 states have call predecessors, (908), 908 states have call successors, (908) Second operand has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 4 states have call successors, (36), 3 states have call predecessors, (36), 3 states have return successors, (34), 4 states have call predecessors, (34), 4 states have call successors, (34) [2021-11-13 01:36:47,919 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.56s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 01:37:10,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:37:10,427 INFO L93 Difference]: Finished difference Result 14445 states and 20215 transitions. [2021-11-13 01:37:10,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-13 01:37:10,429 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 4 states have call successors, (36), 3 states have call predecessors, (36), 3 states have return successors, (34), 4 states have call predecessors, (34), 4 states have call successors, (34) Word has length 347 [2021-11-13 01:37:10,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:37:10,535 INFO L225 Difference]: With dead ends: 14445 [2021-11-13 01:37:10,535 INFO L226 Difference]: Without dead ends: 10771 [2021-11-13 01:37:10,571 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 692 GetRequests, 690 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-13 01:37:10,577 INFO L933 BasicCegarLoop]: 6793 mSDtfsCounter, 9854 mSDsluCounter, 12922 mSDsCounter, 0 mSdLazyCounter, 1854 mSolverCounterSat, 20 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23116.84ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 9854 SdHoareTripleChecker+Valid, 19715 SdHoareTripleChecker+Invalid, 1875 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 94.38ms SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 1854 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24277.57ms IncrementalHoareTripleChecker+Time [2021-11-13 01:37:10,578 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9854 Valid, 19715 Invalid, 1875 Unknown, 0 Unchecked, 94.38ms Time], IncrementalHoareTripleChecker [20 Valid, 1854 Invalid, 1 Unknown, 0 Unchecked, 24277.57ms Time] [2021-11-13 01:37:10,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10771 states. [2021-11-13 01:37:11,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10771 to 10741. [2021-11-13 01:37:11,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10741 states, 7536 states have (on average 1.2620753715498938) internal successors, (9511), 7664 states have internal predecessors, (9511), 2594 states have call successors, (2594), 609 states have call predecessors, (2594), 608 states have return successors, (2590), 2578 states have call predecessors, (2590), 2590 states have call successors, (2590) [2021-11-13 01:37:11,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10741 states to 10741 states and 14695 transitions. [2021-11-13 01:37:11,352 INFO L78 Accepts]: Start accepts. Automaton has 10741 states and 14695 transitions. Word has length 347 [2021-11-13 01:37:11,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:37:11,354 INFO L470 AbstractCegarLoop]: Abstraction has 10741 states and 14695 transitions. [2021-11-13 01:37:11,355 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 4 states have call successors, (36), 3 states have call predecessors, (36), 3 states have return successors, (34), 4 states have call predecessors, (34), 4 states have call successors, (34) [2021-11-13 01:37:11,355 INFO L276 IsEmpty]: Start isEmpty. Operand 10741 states and 14695 transitions. [2021-11-13 01:37:11,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 360 [2021-11-13 01:37:11,371 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:37:11,371 INFO L514 BasicCegarLoop]: trace histogram [30, 30, 29, 29, 29, 29, 29, 29, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 01:37:11,467 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21c9182f-b899-4b83-92a0-503ee2fdb560/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-13 01:37:11,584 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21c9182f-b899-4b83-92a0-503ee2fdb560/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 01:37:11,584 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)] === [2021-11-13 01:37:11,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:37:11,585 INFO L85 PathProgramCache]: Analyzing trace with hash 1248262081, now seen corresponding path program 1 times [2021-11-13 01:37:11,589 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 01:37:11,589 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1480077431] [2021-11-13 01:37:11,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:37:11,589 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 01:37:11,590 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21c9182f-b899-4b83-92a0-503ee2fdb560/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 01:37:11,593 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21c9182f-b899-4b83-92a0-503ee2fdb560/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 01:37:11,599 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21c9182f-b899-4b83-92a0-503ee2fdb560/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-13 01:37:16,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:37:17,339 INFO L263 TraceCheckSpWp]: Trace formula consists of 2681 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-13 01:37:17,348 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:37:18,506 INFO L134 CoverageAnalysis]: Checked inductivity of 3741 backedges. 87 proven. 0 refuted. 0 times theorem prover too weak. 3654 trivial. 0 not checked. [2021-11-13 01:37:18,506 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:37:19,635 INFO L134 CoverageAnalysis]: Checked inductivity of 3741 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3741 trivial. 0 not checked. [2021-11-13 01:37:19,636 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 01:37:19,636 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1480077431] [2021-11-13 01:37:19,636 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1480077431] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 01:37:19,636 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 01:37:19,637 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-13 01:37:19,637 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1735905075] [2021-11-13 01:37:19,637 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 01:37:19,639 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-13 01:37:19,639 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 01:37:19,640 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-13 01:37:19,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-13 01:37:19,640 INFO L87 Difference]: Start difference. First operand 10741 states and 14695 transitions. Second operand has 4 states, 4 states have (on average 21.0) internal successors, (84), 4 states have internal predecessors, (84), 4 states have call successors, (37), 3 states have call predecessors, (37), 3 states have return successors, (34), 4 states have call predecessors, (34), 4 states have call successors, (34) [2021-11-13 01:37:22,160 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.52s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 01:37:44,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:37:44,233 INFO L93 Difference]: Finished difference Result 32349 states and 44210 transitions. [2021-11-13 01:37:44,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-13 01:37:44,234 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.0) internal successors, (84), 4 states have internal predecessors, (84), 4 states have call successors, (37), 3 states have call predecessors, (37), 3 states have return successors, (34), 4 states have call predecessors, (34), 4 states have call successors, (34) Word has length 359 [2021-11-13 01:37:44,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:37:44,407 INFO L225 Difference]: With dead ends: 32349 [2021-11-13 01:37:44,407 INFO L226 Difference]: Without dead ends: 21671 [2021-11-13 01:37:44,454 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 716 GetRequests, 714 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-13 01:37:44,455 INFO L933 BasicCegarLoop]: 7263 mSDtfsCounter, 8749 mSDsluCounter, 9278 mSDsCounter, 0 mSdLazyCounter, 1895 mSolverCounterSat, 45 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22552.93ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 8749 SdHoareTripleChecker+Valid, 16541 SdHoareTripleChecker+Invalid, 1941 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 55.37ms SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 1895 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 23683.13ms IncrementalHoareTripleChecker+Time [2021-11-13 01:37:44,455 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8749 Valid, 16541 Invalid, 1941 Unknown, 0 Unchecked, 55.37ms Time], IncrementalHoareTripleChecker [45 Valid, 1895 Invalid, 1 Unknown, 0 Unchecked, 23683.13ms Time] [2021-11-13 01:37:44,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21671 states. [2021-11-13 01:37:45,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21671 to 21613. [2021-11-13 01:37:45,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21613 states, 15337 states have (on average 1.264849709851992) internal successors, (19399), 15584 states have internal predecessors, (19399), 5040 states have call successors, (5040), 1236 states have call predecessors, (5040), 1233 states have return successors, (5036), 5006 states have call predecessors, (5036), 5036 states have call successors, (5036) [2021-11-13 01:37:45,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21613 states to 21613 states and 29475 transitions. [2021-11-13 01:37:45,586 INFO L78 Accepts]: Start accepts. Automaton has 21613 states and 29475 transitions. Word has length 359 [2021-11-13 01:37:45,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:37:45,591 INFO L470 AbstractCegarLoop]: Abstraction has 21613 states and 29475 transitions. [2021-11-13 01:37:45,592 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.0) internal successors, (84), 4 states have internal predecessors, (84), 4 states have call successors, (37), 3 states have call predecessors, (37), 3 states have return successors, (34), 4 states have call predecessors, (34), 4 states have call successors, (34) [2021-11-13 01:37:45,593 INFO L276 IsEmpty]: Start isEmpty. Operand 21613 states and 29475 transitions. [2021-11-13 01:37:45,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 366 [2021-11-13 01:37:45,605 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:37:45,606 INFO L514 BasicCegarLoop]: trace histogram [30, 30, 29, 29, 29, 29, 29, 29, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 01:37:45,699 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21c9182f-b899-4b83-92a0-503ee2fdb560/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-13 01:37:45,821 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21c9182f-b899-4b83-92a0-503ee2fdb560/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 01:37:45,821 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)] === [2021-11-13 01:37:45,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:37:45,822 INFO L85 PathProgramCache]: Analyzing trace with hash -895144997, now seen corresponding path program 1 times [2021-11-13 01:37:45,825 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 01:37:45,825 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1786299360] [2021-11-13 01:37:45,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:37:45,825 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 01:37:45,825 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21c9182f-b899-4b83-92a0-503ee2fdb560/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 01:37:45,826 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21c9182f-b899-4b83-92a0-503ee2fdb560/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 01:37:45,827 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21c9182f-b899-4b83-92a0-503ee2fdb560/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-13 01:37:50,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:37:51,247 INFO L263 TraceCheckSpWp]: Trace formula consists of 2676 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-13 01:37:51,256 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:37:52,279 INFO L134 CoverageAnalysis]: Checked inductivity of 3741 backedges. 87 proven. 0 refuted. 0 times theorem prover too weak. 3654 trivial. 0 not checked. [2021-11-13 01:37:52,280 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:37:53,328 INFO L134 CoverageAnalysis]: Checked inductivity of 3741 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3741 trivial. 0 not checked. [2021-11-13 01:37:53,328 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 01:37:53,328 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1786299360] [2021-11-13 01:37:53,328 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1786299360] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 01:37:53,329 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 01:37:53,329 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-13 01:37:53,329 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1940475677] [2021-11-13 01:37:53,329 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 01:37:53,330 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-13 01:37:53,331 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 01:37:53,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-13 01:37:53,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 01:37:53,332 INFO L87 Difference]: Start difference. First operand 21613 states and 29475 transitions. Second operand has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 3 states have call successors, (37), 3 states have call predecessors, (37), 3 states have return successors, (34), 3 states have call predecessors, (34), 3 states have call successors, (34) [2021-11-13 01:37:55,842 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.51s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 01:37:57,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:37:57,896 INFO L93 Difference]: Finished difference Result 51939 states and 70546 transitions. [2021-11-13 01:37:57,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 01:37:57,897 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 3 states have call successors, (37), 3 states have call predecessors, (37), 3 states have return successors, (34), 3 states have call predecessors, (34), 3 states have call successors, (34) Word has length 365 [2021-11-13 01:37:57,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:37:58,071 INFO L225 Difference]: With dead ends: 51939 [2021-11-13 01:37:58,072 INFO L226 Difference]: Without dead ends: 30389 [2021-11-13 01:37:58,174 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 728 GetRequests, 727 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 01:37:58,177 INFO L933 BasicCegarLoop]: 5700 mSDtfsCounter, 3552 mSDsluCounter, 4942 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3398.10ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3552 SdHoareTripleChecker+Valid, 10642 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 20.50ms SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3576.33ms IncrementalHoareTripleChecker+Time [2021-11-13 01:37:58,179 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3552 Valid, 10642 Invalid, 101 Unknown, 0 Unchecked, 20.50ms Time], IncrementalHoareTripleChecker [7 Valid, 93 Invalid, 1 Unknown, 0 Unchecked, 3576.33ms Time] [2021-11-13 01:37:58,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30389 states. [2021-11-13 01:37:59,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30389 to 30356. [2021-11-13 01:37:59,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30356 states, 21451 states have (on average 1.260966854692089) internal successors, (27049), 21787 states have internal predecessors, (27049), 7018 states have call successors, (7018), 1889 states have call predecessors, (7018), 1884 states have return successors, (7016), 6957 states have call predecessors, (7016), 7014 states have call successors, (7016) [2021-11-13 01:37:59,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30356 states to 30356 states and 41083 transitions. [2021-11-13 01:37:59,856 INFO L78 Accepts]: Start accepts. Automaton has 30356 states and 41083 transitions. Word has length 365 [2021-11-13 01:37:59,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:37:59,857 INFO L470 AbstractCegarLoop]: Abstraction has 30356 states and 41083 transitions. [2021-11-13 01:37:59,857 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 3 states have call successors, (37), 3 states have call predecessors, (37), 3 states have return successors, (34), 3 states have call predecessors, (34), 3 states have call successors, (34) [2021-11-13 01:37:59,858 INFO L276 IsEmpty]: Start isEmpty. Operand 30356 states and 41083 transitions. [2021-11-13 01:37:59,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 404 [2021-11-13 01:37:59,872 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:37:59,872 INFO L514 BasicCegarLoop]: trace histogram [33, 33, 29, 29, 29, 29, 29, 29, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 01:37:59,965 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21c9182f-b899-4b83-92a0-503ee2fdb560/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-13 01:38:00,091 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21c9182f-b899-4b83-92a0-503ee2fdb560/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 01:38:00,091 INFO L402 AbstractCegarLoop]: === Iteration 4 === 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)] === [2021-11-13 01:38:00,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:38:00,092 INFO L85 PathProgramCache]: Analyzing trace with hash -101607216, now seen corresponding path program 1 times [2021-11-13 01:38:00,096 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 01:38:00,096 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [521146222] [2021-11-13 01:38:00,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:38:00,097 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 01:38:00,097 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21c9182f-b899-4b83-92a0-503ee2fdb560/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 01:38:00,099 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21c9182f-b899-4b83-92a0-503ee2fdb560/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 01:38:00,140 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21c9182f-b899-4b83-92a0-503ee2fdb560/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-13 01:38:05,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:38:06,009 INFO L263 TraceCheckSpWp]: Trace formula consists of 2743 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-13 01:38:06,018 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:38:13,495 INFO L134 CoverageAnalysis]: Checked inductivity of 4054 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4054 trivial. 0 not checked. [2021-11-13 01:38:13,495 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:38:16,651 INFO L134 CoverageAnalysis]: Checked inductivity of 4054 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4054 trivial. 0 not checked. [2021-11-13 01:38:16,652 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 01:38:16,652 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [521146222] [2021-11-13 01:38:16,652 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [521146222] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 01:38:16,652 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 01:38:16,653 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 5] imperfect sequences [] total 7 [2021-11-13 01:38:16,653 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [716618260] [2021-11-13 01:38:16,653 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 01:38:16,654 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-13 01:38:16,654 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 01:38:16,655 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-13 01:38:16,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-13 01:38:16,655 INFO L87 Difference]: Start difference. First operand 30356 states and 41083 transitions. Second operand has 7 states, 7 states have (on average 12.571428571428571) internal successors, (88), 5 states have internal predecessors, (88), 2 states have call successors, (79), 4 states have call predecessors, (79), 2 states have return successors, (76), 2 states have call predecessors, (76), 2 states have call successors, (76) [2021-11-13 01:38:18,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:38:18,453 INFO L93 Difference]: Finished difference Result 30644 states and 41379 transitions. [2021-11-13 01:38:18,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-13 01:38:18,454 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.571428571428571) internal successors, (88), 5 states have internal predecessors, (88), 2 states have call successors, (79), 4 states have call predecessors, (79), 2 states have return successors, (76), 2 states have call predecessors, (76), 2 states have call successors, (76) Word has length 403 [2021-11-13 01:38:18,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:38:18,593 INFO L225 Difference]: With dead ends: 30644 [2021-11-13 01:38:18,593 INFO L226 Difference]: Without dead ends: 30642 [2021-11-13 01:38:18,608 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 807 GetRequests, 799 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2021-11-13 01:38:18,609 INFO L933 BasicCegarLoop]: 5044 mSDtfsCounter, 4870 mSDsluCounter, 20185 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 472.21ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4885 SdHoareTripleChecker+Valid, 25229 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 70.73ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 485.28ms IncrementalHoareTripleChecker+Time [2021-11-13 01:38:18,610 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4885 Valid, 25229 Invalid, 47 Unknown, 0 Unchecked, 70.73ms Time], IncrementalHoareTripleChecker [2 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 485.28ms Time] [2021-11-13 01:38:18,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30642 states. [2021-11-13 01:38:19,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30642 to 30640. [2021-11-13 01:38:19,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30640 states, 21634 states have (on average 1.2601460663769992) internal successors, (27262), 21990 states have internal predecessors, (27262), 7058 states have call successors, (7058), 1950 states have call predecessors, (7058), 1945 states have return successors, (7056), 6997 states have call predecessors, (7056), 7054 states have call successors, (7056) [2021-11-13 01:38:20,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30640 states to 30640 states and 41376 transitions. [2021-11-13 01:38:20,042 INFO L78 Accepts]: Start accepts. Automaton has 30640 states and 41376 transitions. Word has length 403 [2021-11-13 01:38:20,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:38:20,044 INFO L470 AbstractCegarLoop]: Abstraction has 30640 states and 41376 transitions. [2021-11-13 01:38:20,044 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.571428571428571) internal successors, (88), 5 states have internal predecessors, (88), 2 states have call successors, (79), 4 states have call predecessors, (79), 2 states have return successors, (76), 2 states have call predecessors, (76), 2 states have call successors, (76) [2021-11-13 01:38:20,044 INFO L276 IsEmpty]: Start isEmpty. Operand 30640 states and 41376 transitions. [2021-11-13 01:38:20,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 409 [2021-11-13 01:38:20,060 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:38:20,061 INFO L514 BasicCegarLoop]: trace histogram [33, 33, 29, 29, 29, 29, 29, 29, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 01:38:20,155 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21c9182f-b899-4b83-92a0-503ee2fdb560/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-13 01:38:20,292 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21c9182f-b899-4b83-92a0-503ee2fdb560/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 01:38:20,292 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-13 01:38:20,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:38:20,293 INFO L85 PathProgramCache]: Analyzing trace with hash 172412564, now seen corresponding path program 1 times [2021-11-13 01:38:20,297 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 01:38:20,304 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [924320535] [2021-11-13 01:38:20,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:38:20,304 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 01:38:20,304 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21c9182f-b899-4b83-92a0-503ee2fdb560/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 01:38:20,308 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21c9182f-b899-4b83-92a0-503ee2fdb560/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 01:38:20,353 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21c9182f-b899-4b83-92a0-503ee2fdb560/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-13 01:38:25,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:38:26,132 INFO L263 TraceCheckSpWp]: Trace formula consists of 2750 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-13 01:38:26,140 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:38:33,696 INFO L134 CoverageAnalysis]: Checked inductivity of 4056 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 4054 trivial. 0 not checked. [2021-11-13 01:38:33,696 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:38:36,654 INFO L134 CoverageAnalysis]: Checked inductivity of 4056 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4054 trivial. 0 not checked. [2021-11-13 01:38:36,654 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 01:38:36,654 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [924320535] [2021-11-13 01:38:36,654 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [924320535] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-13 01:38:36,655 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-13 01:38:36,655 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2021-11-13 01:38:36,655 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1872509583] [2021-11-13 01:38:36,655 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 01:38:36,656 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-13 01:38:36,656 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 01:38:36,656 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-13 01:38:36,656 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-13 01:38:36,657 INFO L87 Difference]: Start difference. First operand 30640 states and 41376 transitions. Second operand has 5 states, 5 states have (on average 15.4) internal successors, (77), 4 states have internal predecessors, (77), 2 states have call successors, (41), 3 states have call predecessors, (41), 1 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) [2021-11-13 01:38:38,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:38:38,063 INFO L93 Difference]: Finished difference Result 30646 states and 41381 transitions. [2021-11-13 01:38:38,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-13 01:38:38,063 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 4 states have internal predecessors, (77), 2 states have call successors, (41), 3 states have call predecessors, (41), 1 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) Word has length 408 [2021-11-13 01:38:38,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:38:38,197 INFO L225 Difference]: With dead ends: 30646 [2021-11-13 01:38:38,197 INFO L226 Difference]: Without dead ends: 30644 [2021-11-13 01:38:38,212 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 817 GetRequests, 809 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2021-11-13 01:38:38,213 INFO L933 BasicCegarLoop]: 5038 mSDtfsCounter, 4931 mSDsluCounter, 10053 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 208.20ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4945 SdHoareTripleChecker+Valid, 15091 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 23.91ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 233.57ms IncrementalHoareTripleChecker+Time [2021-11-13 01:38:38,214 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4945 Valid, 15091 Invalid, 24 Unknown, 0 Unchecked, 23.91ms Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 233.57ms Time] [2021-11-13 01:38:38,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30644 states. [2021-11-13 01:38:39,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30644 to 30644. [2021-11-13 01:38:39,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30644 states, 21637 states have (on average 1.260109996764801) internal successors, (27265), 21993 states have internal predecessors, (27265), 7058 states have call successors, (7058), 1951 states have call predecessors, (7058), 1946 states have return successors, (7056), 6997 states have call predecessors, (7056), 7054 states have call successors, (7056) [2021-11-13 01:38:39,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30644 states to 30644 states and 41379 transitions. [2021-11-13 01:38:39,857 INFO L78 Accepts]: Start accepts. Automaton has 30644 states and 41379 transitions. Word has length 408 [2021-11-13 01:38:39,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:38:39,860 INFO L470 AbstractCegarLoop]: Abstraction has 30644 states and 41379 transitions. [2021-11-13 01:38:39,860 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 4 states have internal predecessors, (77), 2 states have call successors, (41), 3 states have call predecessors, (41), 1 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) [2021-11-13 01:38:39,860 INFO L276 IsEmpty]: Start isEmpty. Operand 30644 states and 41379 transitions. [2021-11-13 01:38:39,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 414 [2021-11-13 01:38:39,871 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:38:39,872 INFO L514 BasicCegarLoop]: trace histogram [33, 33, 29, 29, 29, 29, 29, 29, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 01:38:39,969 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21c9182f-b899-4b83-92a0-503ee2fdb560/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-13 01:38:40,096 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21c9182f-b899-4b83-92a0-503ee2fdb560/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 01:38:40,096 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)] === [2021-11-13 01:38:40,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:38:40,097 INFO L85 PathProgramCache]: Analyzing trace with hash -1501713648, now seen corresponding path program 1 times [2021-11-13 01:38:40,101 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 01:38:40,101 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1477662940] [2021-11-13 01:38:40,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:38:40,102 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 01:38:40,102 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21c9182f-b899-4b83-92a0-503ee2fdb560/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 01:38:40,103 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21c9182f-b899-4b83-92a0-503ee2fdb560/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 01:38:40,128 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21c9182f-b899-4b83-92a0-503ee2fdb560/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-13 01:38:45,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:38:45,693 INFO L263 TraceCheckSpWp]: Trace formula consists of 2757 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-13 01:38:45,702 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:38:53,383 INFO L134 CoverageAnalysis]: Checked inductivity of 4062 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 4058 trivial. 0 not checked. [2021-11-13 01:38:53,383 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:38:56,091 INFO L134 CoverageAnalysis]: Checked inductivity of 4062 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 4058 trivial. 0 not checked. [2021-11-13 01:38:56,091 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 01:38:56,091 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1477662940] [2021-11-13 01:38:56,091 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1477662940] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-13 01:38:56,091 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-13 01:38:56,091 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2021-11-13 01:38:56,091 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [812075538] [2021-11-13 01:38:56,092 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 01:38:56,092 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-13 01:38:56,092 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 01:38:56,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-13 01:38:56,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-13 01:38:56,093 INFO L87 Difference]: Start difference. First operand 30644 states and 41379 transitions. Second operand has 5 states, 5 states have (on average 15.4) internal successors, (77), 4 states have internal predecessors, (77), 2 states have call successors, (42), 3 states have call predecessors, (42), 1 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) [2021-11-13 01:38:57,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:38:57,619 INFO L93 Difference]: Finished difference Result 30650 states and 41384 transitions. [2021-11-13 01:38:57,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-13 01:38:57,620 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 4 states have internal predecessors, (77), 2 states have call successors, (42), 3 states have call predecessors, (42), 1 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) Word has length 413 [2021-11-13 01:38:57,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:38:57,737 INFO L225 Difference]: With dead ends: 30650 [2021-11-13 01:38:57,737 INFO L226 Difference]: Without dead ends: 30648 [2021-11-13 01:38:57,752 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 827 GetRequests, 819 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2021-11-13 01:38:57,753 INFO L933 BasicCegarLoop]: 5038 mSDtfsCounter, 4931 mSDsluCounter, 10053 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 195.67ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4944 SdHoareTripleChecker+Valid, 15091 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 20.32ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 201.06ms IncrementalHoareTripleChecker+Time [2021-11-13 01:38:57,753 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4944 Valid, 15091 Invalid, 24 Unknown, 0 Unchecked, 20.32ms Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 201.06ms Time] [2021-11-13 01:38:57,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30648 states. [2021-11-13 01:38:59,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30648 to 30648. [2021-11-13 01:38:59,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30648 states, 21640 states have (on average 1.2600739371534195) internal successors, (27268), 21996 states have internal predecessors, (27268), 7058 states have call successors, (7058), 1952 states have call predecessors, (7058), 1947 states have return successors, (7056), 6997 states have call predecessors, (7056), 7054 states have call successors, (7056) [2021-11-13 01:38:59,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30648 states to 30648 states and 41382 transitions. [2021-11-13 01:38:59,193 INFO L78 Accepts]: Start accepts. Automaton has 30648 states and 41382 transitions. Word has length 413 [2021-11-13 01:38:59,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:38:59,194 INFO L470 AbstractCegarLoop]: Abstraction has 30648 states and 41382 transitions. [2021-11-13 01:38:59,194 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 4 states have internal predecessors, (77), 2 states have call successors, (42), 3 states have call predecessors, (42), 1 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) [2021-11-13 01:38:59,194 INFO L276 IsEmpty]: Start isEmpty. Operand 30648 states and 41382 transitions. [2021-11-13 01:38:59,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 431 [2021-11-13 01:38:59,207 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:38:59,208 INFO L514 BasicCegarLoop]: trace histogram [33, 33, 29, 29, 29, 29, 29, 29, 5, 5, 5, 4, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 01:38:59,306 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21c9182f-b899-4b83-92a0-503ee2fdb560/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-13 01:38:59,424 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21c9182f-b899-4b83-92a0-503ee2fdb560/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 01:38:59,424 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)] === [2021-11-13 01:38:59,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:38:59,425 INFO L85 PathProgramCache]: Analyzing trace with hash -580206637, now seen corresponding path program 1 times [2021-11-13 01:38:59,428 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 01:38:59,428 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2012864112] [2021-11-13 01:38:59,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:38:59,429 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 01:38:59,429 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21c9182f-b899-4b83-92a0-503ee2fdb560/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 01:38:59,429 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21c9182f-b899-4b83-92a0-503ee2fdb560/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 01:38:59,435 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21c9182f-b899-4b83-92a0-503ee2fdb560/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-13 01:39:04,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:39:04,849 INFO L263 TraceCheckSpWp]: Trace formula consists of 2812 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-13 01:39:04,861 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:39:05,981 INFO L134 CoverageAnalysis]: Checked inductivity of 4084 backedges. 126 proven. 0 refuted. 0 times theorem prover too weak. 3958 trivial. 0 not checked. [2021-11-13 01:39:05,982 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:39:07,094 INFO L134 CoverageAnalysis]: Checked inductivity of 4084 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 4072 trivial. 0 not checked. [2021-11-13 01:39:07,095 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 01:39:07,095 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2012864112] [2021-11-13 01:39:07,095 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2012864112] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 01:39:07,095 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 01:39:07,096 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-13 01:39:07,096 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1833194505] [2021-11-13 01:39:07,096 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 01:39:07,097 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-13 01:39:07,097 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 01:39:07,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-13 01:39:07,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-13 01:39:07,098 INFO L87 Difference]: Start difference. First operand 30648 states and 41382 transitions. Second operand has 4 states, 4 states have (on average 28.25) internal successors, (113), 4 states have internal predecessors, (113), 4 states have call successors, (53), 3 states have call predecessors, (53), 3 states have return successors, (51), 4 states have call predecessors, (51), 4 states have call successors, (51) [2021-11-13 01:39:09,635 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.53s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 01:39:31,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:39:31,614 INFO L93 Difference]: Finished difference Result 90017 states and 121527 transitions. [2021-11-13 01:39:31,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-13 01:39:31,615 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 28.25) internal successors, (113), 4 states have internal predecessors, (113), 4 states have call successors, (53), 3 states have call predecessors, (53), 3 states have return successors, (51), 4 states have call predecessors, (51), 4 states have call successors, (51) Word has length 430 [2021-11-13 01:39:31,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:39:31,859 INFO L225 Difference]: With dead ends: 90017 [2021-11-13 01:39:31,859 INFO L226 Difference]: Without dead ends: 60162 [2021-11-13 01:39:32,070 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 858 GetRequests, 856 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-13 01:39:32,071 INFO L933 BasicCegarLoop]: 7577 mSDtfsCounter, 9835 mSDsluCounter, 8941 mSDsCounter, 0 mSdLazyCounter, 1842 mSolverCounterSat, 13 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20755.71ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 9835 SdHoareTripleChecker+Valid, 16518 SdHoareTripleChecker+Invalid, 1856 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 43.83ms SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 1842 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21858.19ms IncrementalHoareTripleChecker+Time [2021-11-13 01:39:32,071 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9835 Valid, 16518 Invalid, 1856 Unknown, 0 Unchecked, 43.83ms Time], IncrementalHoareTripleChecker [13 Valid, 1842 Invalid, 1 Unknown, 0 Unchecked, 21858.19ms Time] [2021-11-13 01:39:32,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60162 states. [2021-11-13 01:39:35,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60162 to 60120. [2021-11-13 01:39:35,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60120 states, 42468 states have (on average 1.2593482151266837) internal successors, (53482), 43154 states have internal predecessors, (53482), 13822 states have call successors, (13822), 3836 states have call predecessors, (13822), 3827 states have return successors, (13822), 13723 states have call predecessors, (13822), 13818 states have call successors, (13822) [2021-11-13 01:39:35,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60120 states to 60120 states and 81126 transitions. [2021-11-13 01:39:35,272 INFO L78 Accepts]: Start accepts. Automaton has 60120 states and 81126 transitions. Word has length 430 [2021-11-13 01:39:35,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:39:35,273 INFO L470 AbstractCegarLoop]: Abstraction has 60120 states and 81126 transitions. [2021-11-13 01:39:35,274 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 28.25) internal successors, (113), 4 states have internal predecessors, (113), 4 states have call successors, (53), 3 states have call predecessors, (53), 3 states have return successors, (51), 4 states have call predecessors, (51), 4 states have call successors, (51) [2021-11-13 01:39:35,274 INFO L276 IsEmpty]: Start isEmpty. Operand 60120 states and 81126 transitions. [2021-11-13 01:39:35,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 419 [2021-11-13 01:39:35,286 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:39:35,287 INFO L514 BasicCegarLoop]: trace histogram [33, 33, 29, 29, 29, 29, 29, 29, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 01:39:35,384 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21c9182f-b899-4b83-92a0-503ee2fdb560/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-13 01:39:35,500 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21c9182f-b899-4b83-92a0-503ee2fdb560/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 01:39:35,501 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-13 01:39:35,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:39:35,501 INFO L85 PathProgramCache]: Analyzing trace with hash 2045137876, now seen corresponding path program 1 times [2021-11-13 01:39:35,505 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 01:39:35,505 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1348649570] [2021-11-13 01:39:35,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:39:35,505 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 01:39:35,505 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21c9182f-b899-4b83-92a0-503ee2fdb560/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 01:39:35,506 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21c9182f-b899-4b83-92a0-503ee2fdb560/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 01:39:35,507 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21c9182f-b899-4b83-92a0-503ee2fdb560/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-13 01:39:40,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:39:40,827 INFO L263 TraceCheckSpWp]: Trace formula consists of 2764 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-13 01:39:40,836 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:39:48,277 INFO L134 CoverageAnalysis]: Checked inductivity of 4072 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 4066 trivial. 0 not checked. [2021-11-13 01:39:48,277 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:39:50,959 INFO L134 CoverageAnalysis]: Checked inductivity of 4072 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 4066 trivial. 0 not checked. [2021-11-13 01:39:50,959 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 01:39:50,959 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1348649570] [2021-11-13 01:39:50,960 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1348649570] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-13 01:39:50,960 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-13 01:39:50,960 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2021-11-13 01:39:50,960 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [799766529] [2021-11-13 01:39:50,960 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 01:39:50,961 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-13 01:39:50,961 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 01:39:50,961 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-13 01:39:50,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-13 01:39:50,962 INFO L87 Difference]: Start difference. First operand 60120 states and 81126 transitions. Second operand has 5 states, 5 states have (on average 15.4) internal successors, (77), 4 states have internal predecessors, (77), 2 states have call successors, (43), 3 states have call predecessors, (43), 1 states have return successors, (41), 2 states have call predecessors, (41), 2 states have call successors, (41) [2021-11-13 01:39:53,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:39:53,526 INFO L93 Difference]: Finished difference Result 60126 states and 81131 transitions. [2021-11-13 01:39:53,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-13 01:39:53,527 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 4 states have internal predecessors, (77), 2 states have call successors, (43), 3 states have call predecessors, (43), 1 states have return successors, (41), 2 states have call predecessors, (41), 2 states have call successors, (41) Word has length 418 [2021-11-13 01:39:53,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:39:53,864 INFO L225 Difference]: With dead ends: 60126 [2021-11-13 01:39:53,864 INFO L226 Difference]: Without dead ends: 60124 [2021-11-13 01:39:53,885 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 837 GetRequests, 829 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2021-11-13 01:39:53,886 INFO L933 BasicCegarLoop]: 5038 mSDtfsCounter, 4931 mSDsluCounter, 10053 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 185.27ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4943 SdHoareTripleChecker+Valid, 15091 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 19.84ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 190.44ms IncrementalHoareTripleChecker+Time [2021-11-13 01:39:53,886 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4943 Valid, 15091 Invalid, 24 Unknown, 0 Unchecked, 19.84ms Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 190.44ms Time] [2021-11-13 01:39:53,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60124 states. [2021-11-13 01:39:56,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60124 to 60124. [2021-11-13 01:39:56,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60124 states, 42471 states have (on average 1.2593298956935322) internal successors, (53485), 43157 states have internal predecessors, (53485), 13822 states have call successors, (13822), 3837 states have call predecessors, (13822), 3828 states have return successors, (13822), 13723 states have call predecessors, (13822), 13818 states have call successors, (13822) [2021-11-13 01:39:57,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60124 states to 60124 states and 81129 transitions. [2021-11-13 01:39:57,126 INFO L78 Accepts]: Start accepts. Automaton has 60124 states and 81129 transitions. Word has length 418 [2021-11-13 01:39:57,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:39:57,127 INFO L470 AbstractCegarLoop]: Abstraction has 60124 states and 81129 transitions. [2021-11-13 01:39:57,127 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 4 states have internal predecessors, (77), 2 states have call successors, (43), 3 states have call predecessors, (43), 1 states have return successors, (41), 2 states have call predecessors, (41), 2 states have call successors, (41) [2021-11-13 01:39:57,127 INFO L276 IsEmpty]: Start isEmpty. Operand 60124 states and 81129 transitions. [2021-11-13 01:39:57,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 424 [2021-11-13 01:39:57,140 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:39:57,141 INFO L514 BasicCegarLoop]: trace histogram [33, 33, 29, 29, 29, 29, 29, 29, 5, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 01:39:57,236 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21c9182f-b899-4b83-92a0-503ee2fdb560/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-11-13 01:39:57,356 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21c9182f-b899-4b83-92a0-503ee2fdb560/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 01:39:57,356 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-13 01:39:57,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:39:57,357 INFO L85 PathProgramCache]: Analyzing trace with hash -2076598960, now seen corresponding path program 1 times [2021-11-13 01:39:57,360 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 01:39:57,360 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1178384679] [2021-11-13 01:39:57,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:39:57,360 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 01:39:57,360 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21c9182f-b899-4b83-92a0-503ee2fdb560/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 01:39:57,361 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21c9182f-b899-4b83-92a0-503ee2fdb560/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 01:39:57,363 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21c9182f-b899-4b83-92a0-503ee2fdb560/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-13 01:40:02,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:40:02,998 INFO L263 TraceCheckSpWp]: Trace formula consists of 2771 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-13 01:40:03,005 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:40:10,739 INFO L134 CoverageAnalysis]: Checked inductivity of 4086 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 4078 trivial. 0 not checked. [2021-11-13 01:40:10,740 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:40:13,580 INFO L134 CoverageAnalysis]: Checked inductivity of 4086 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 4078 trivial. 0 not checked. [2021-11-13 01:40:13,580 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 01:40:13,580 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1178384679] [2021-11-13 01:40:13,580 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1178384679] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-13 01:40:13,580 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-13 01:40:13,581 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2021-11-13 01:40:13,581 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [647618655] [2021-11-13 01:40:13,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 01:40:13,582 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-13 01:40:13,582 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 01:40:13,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-13 01:40:13,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-13 01:40:13,582 INFO L87 Difference]: Start difference. First operand 60124 states and 81129 transitions. Second operand has 5 states, 5 states have (on average 15.4) internal successors, (77), 4 states have internal predecessors, (77), 2 states have call successors, (44), 3 states have call predecessors, (44), 1 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) [2021-11-13 01:40:16,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:40:16,459 INFO L93 Difference]: Finished difference Result 60130 states and 81134 transitions. [2021-11-13 01:40:16,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-13 01:40:16,459 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 4 states have internal predecessors, (77), 2 states have call successors, (44), 3 states have call predecessors, (44), 1 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) Word has length 423 [2021-11-13 01:40:16,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:40:16,634 INFO L225 Difference]: With dead ends: 60130 [2021-11-13 01:40:16,634 INFO L226 Difference]: Without dead ends: 60128 [2021-11-13 01:40:16,654 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 847 GetRequests, 839 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2021-11-13 01:40:16,655 INFO L933 BasicCegarLoop]: 5038 mSDtfsCounter, 4931 mSDsluCounter, 10053 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 203.34ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4942 SdHoareTripleChecker+Valid, 15091 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 21.11ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 208.55ms IncrementalHoareTripleChecker+Time [2021-11-13 01:40:16,655 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4942 Valid, 15091 Invalid, 24 Unknown, 0 Unchecked, 21.11ms Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 208.55ms Time] [2021-11-13 01:40:16,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60128 states. [2021-11-13 01:40:19,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60128 to 60128. [2021-11-13 01:40:19,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60128 states, 42474 states have (on average 1.2593115788482365) internal successors, (53488), 43160 states have internal predecessors, (53488), 13822 states have call successors, (13822), 3838 states have call predecessors, (13822), 3829 states have return successors, (13822), 13723 states have call predecessors, (13822), 13818 states have call successors, (13822) [2021-11-13 01:40:19,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60128 states to 60128 states and 81132 transitions. [2021-11-13 01:40:19,954 INFO L78 Accepts]: Start accepts. Automaton has 60128 states and 81132 transitions. Word has length 423 [2021-11-13 01:40:19,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:40:19,955 INFO L470 AbstractCegarLoop]: Abstraction has 60128 states and 81132 transitions. [2021-11-13 01:40:19,956 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 4 states have internal predecessors, (77), 2 states have call successors, (44), 3 states have call predecessors, (44), 1 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) [2021-11-13 01:40:19,956 INFO L276 IsEmpty]: Start isEmpty. Operand 60128 states and 81132 transitions. [2021-11-13 01:40:19,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 440 [2021-11-13 01:40:19,966 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:40:19,966 INFO L514 BasicCegarLoop]: trace histogram [33, 33, 29, 29, 29, 29, 29, 29, 6, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 01:40:20,030 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21c9182f-b899-4b83-92a0-503ee2fdb560/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (10)] Ended with exit code 0 [2021-11-13 01:40:20,167 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21c9182f-b899-4b83-92a0-503ee2fdb560/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 01:40:20,167 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-13 01:40:20,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:40:20,168 INFO L85 PathProgramCache]: Analyzing trace with hash -1595449367, now seen corresponding path program 1 times [2021-11-13 01:40:20,171 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 01:40:20,171 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [542338958] [2021-11-13 01:40:20,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:40:20,171 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 01:40:20,172 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21c9182f-b899-4b83-92a0-503ee2fdb560/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 01:40:20,172 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21c9182f-b899-4b83-92a0-503ee2fdb560/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 01:40:20,177 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21c9182f-b899-4b83-92a0-503ee2fdb560/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-11-13 01:40:25,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:40:25,599 INFO L263 TraceCheckSpWp]: Trace formula consists of 2825 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-13 01:40:25,604 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:40:26,765 INFO L134 CoverageAnalysis]: Checked inductivity of 4115 backedges. 125 proven. 0 refuted. 0 times theorem prover too weak. 3990 trivial. 0 not checked. [2021-11-13 01:40:26,765 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:40:27,921 INFO L134 CoverageAnalysis]: Checked inductivity of 4115 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 4100 trivial. 0 not checked. [2021-11-13 01:40:27,921 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 01:40:27,921 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [542338958] [2021-11-13 01:40:27,921 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [542338958] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 01:40:27,922 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 01:40:27,922 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-13 01:40:27,922 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1206070878] [2021-11-13 01:40:27,922 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 01:40:27,923 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-13 01:40:27,924 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 01:40:27,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-13 01:40:27,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-13 01:40:27,924 INFO L87 Difference]: Start difference. First operand 60128 states and 81132 transitions. Second operand has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 4 states have call successors, (57), 3 states have call predecessors, (57), 3 states have return successors, (55), 4 states have call predecessors, (55), 4 states have call successors, (55) [2021-11-13 01:40:30,441 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.51s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 01:40:53,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:40:53,260 INFO L93 Difference]: Finished difference Result 134259 states and 181142 transitions. [2021-11-13 01:40:53,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-13 01:40:53,261 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 4 states have call successors, (57), 3 states have call predecessors, (57), 3 states have return successors, (55), 4 states have call predecessors, (55), 4 states have call successors, (55) Word has length 439 [2021-11-13 01:40:53,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:40:53,584 INFO L225 Difference]: With dead ends: 134259 [2021-11-13 01:40:53,585 INFO L226 Difference]: Without dead ends: 74924 [2021-11-13 01:40:53,708 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 876 GetRequests, 874 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-13 01:40:53,709 INFO L933 BasicCegarLoop]: 10739 mSDtfsCounter, 9784 mSDsluCounter, 9108 mSDsCounter, 0 mSdLazyCounter, 1785 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19969.58ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 9784 SdHoareTripleChecker+Valid, 19847 SdHoareTripleChecker+Invalid, 1796 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 46.54ms SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 1785 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21131.35ms IncrementalHoareTripleChecker+Time [2021-11-13 01:40:53,709 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9784 Valid, 19847 Invalid, 1796 Unknown, 0 Unchecked, 46.54ms Time], IncrementalHoareTripleChecker [10 Valid, 1785 Invalid, 1 Unknown, 0 Unchecked, 21131.35ms Time] [2021-11-13 01:40:53,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74924 states. [2021-11-13 01:40:57,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74924 to 74832. [2021-11-13 01:40:57,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74832 states, 52860 states have (on average 1.2586265607264473) internal successors, (66531), 53711 states have internal predecessors, (66531), 17201 states have call successors, (17201), 4777 states have call predecessors, (17201), 4768 states have return successors, (17202), 17085 states have call predecessors, (17202), 17197 states have call successors, (17202) [2021-11-13 01:40:58,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74832 states to 74832 states and 100934 transitions. [2021-11-13 01:40:58,077 INFO L78 Accepts]: Start accepts. Automaton has 74832 states and 100934 transitions. Word has length 439 [2021-11-13 01:40:58,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:40:58,078 INFO L470 AbstractCegarLoop]: Abstraction has 74832 states and 100934 transitions. [2021-11-13 01:40:58,078 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 4 states have call successors, (57), 3 states have call predecessors, (57), 3 states have return successors, (55), 4 states have call predecessors, (55), 4 states have call successors, (55) [2021-11-13 01:40:58,078 INFO L276 IsEmpty]: Start isEmpty. Operand 74832 states and 100934 transitions. [2021-11-13 01:40:58,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 429 [2021-11-13 01:40:58,088 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:40:58,088 INFO L514 BasicCegarLoop]: trace histogram [33, 33, 29, 29, 29, 29, 29, 29, 6, 5, 5, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 01:40:58,154 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21c9182f-b899-4b83-92a0-503ee2fdb560/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-11-13 01:40:58,292 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21c9182f-b899-4b83-92a0-503ee2fdb560/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 01:40:58,292 INFO L402 AbstractCegarLoop]: === Iteration 11 === 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)] === [2021-11-13 01:40:58,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:40:58,293 INFO L85 PathProgramCache]: Analyzing trace with hash 1531050260, now seen corresponding path program 1 times [2021-11-13 01:40:58,297 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 01:40:58,298 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [161096000] [2021-11-13 01:40:58,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:40:58,298 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 01:40:58,298 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21c9182f-b899-4b83-92a0-503ee2fdb560/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 01:40:58,299 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21c9182f-b899-4b83-92a0-503ee2fdb560/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 01:40:58,300 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21c9182f-b899-4b83-92a0-503ee2fdb560/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-11-13 01:41:03,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:41:03,741 INFO L263 TraceCheckSpWp]: Trace formula consists of 2778 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-13 01:41:03,748 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:41:11,904 INFO L134 CoverageAnalysis]: Checked inductivity of 4104 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 4094 trivial. 0 not checked. [2021-11-13 01:41:11,904 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:41:14,646 INFO L134 CoverageAnalysis]: Checked inductivity of 4104 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 4094 trivial. 0 not checked. [2021-11-13 01:41:14,646 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 01:41:14,647 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [161096000] [2021-11-13 01:41:14,647 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [161096000] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-13 01:41:14,647 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-13 01:41:14,647 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2021-11-13 01:41:14,648 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1342025512] [2021-11-13 01:41:14,648 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 01:41:14,648 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-13 01:41:14,649 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 01:41:14,649 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-13 01:41:14,649 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-13 01:41:14,649 INFO L87 Difference]: Start difference. First operand 74832 states and 100934 transitions. Second operand has 5 states, 5 states have (on average 15.4) internal successors, (77), 4 states have internal predecessors, (77), 2 states have call successors, (45), 3 states have call predecessors, (45), 1 states have return successors, (43), 2 states have call predecessors, (43), 2 states have call successors, (43)