./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-marvell-sky2.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_fa5458ba-8cfe-459d-a674-dbb0e8e3dfbd/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa5458ba-8cfe-459d-a674-dbb0e8e3dfbd/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_fa5458ba-8cfe-459d-a674-dbb0e8e3dfbd/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa5458ba-8cfe-459d-a674-dbb0e8e3dfbd/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-marvell-sky2.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa5458ba-8cfe-459d-a674-dbb0e8e3dfbd/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_fa5458ba-8cfe-459d-a674-dbb0e8e3dfbd/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 678d1ed0889f06c506279e4c19484f47385b64dd1d4a949ec484624bf8468835 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-12 22:54:13,034 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-12 22:54:13,038 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-12 22:54:13,078 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-12 22:54:13,079 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-12 22:54:13,081 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-12 22:54:13,083 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-12 22:54:13,085 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-12 22:54:13,088 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-12 22:54:13,089 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-12 22:54:13,091 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-12 22:54:13,093 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-12 22:54:13,093 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-12 22:54:13,095 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-12 22:54:13,097 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-12 22:54:13,099 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-12 22:54:13,100 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-12 22:54:13,102 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-12 22:54:13,104 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-12 22:54:13,107 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-12 22:54:13,109 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-12 22:54:13,111 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-12 22:54:13,113 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-12 22:54:13,114 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-12 22:54:13,118 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-12 22:54:13,119 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-12 22:54:13,119 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-12 22:54:13,121 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-12 22:54:13,123 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-12 22:54:13,125 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-12 22:54:13,125 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-12 22:54:13,128 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-12 22:54:13,129 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-12 22:54:13,130 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-12 22:54:13,131 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-12 22:54:13,131 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-12 22:54:13,132 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-12 22:54:13,132 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-12 22:54:13,132 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-12 22:54:13,133 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-12 22:54:13,134 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-12 22:54:13,135 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa5458ba-8cfe-459d-a674-dbb0e8e3dfbd/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-12 22:54:13,164 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-12 22:54:13,164 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-12 22:54:13,165 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-12 22:54:13,165 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-12 22:54:13,166 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-12 22:54:13,166 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-12 22:54:13,166 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-12 22:54:13,166 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-12 22:54:13,166 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-12 22:54:13,167 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-12 22:54:13,167 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-12 22:54:13,167 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-12 22:54:13,167 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-12 22:54:13,168 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-12 22:54:13,168 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-12 22:54:13,168 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-12 22:54:13,169 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-12 22:54:13,169 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-12 22:54:13,169 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-12 22:54:13,169 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-12 22:54:13,170 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-12 22:54:13,170 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-12 22:54:13,170 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-12 22:54:13,170 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-12 22:54:13,171 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-12 22:54:13,171 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-12 22:54:13,171 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-12 22:54:13,171 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-12 22:54:13,172 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 22:54:13,172 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-12 22:54:13,172 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-12 22:54:13,172 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-12 22:54:13,173 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-12 22:54:13,173 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-12 22:54:13,173 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-12 22:54:13,173 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-12 22:54:13,173 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-12 22:54:13,174 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_fa5458ba-8cfe-459d-a674-dbb0e8e3dfbd/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa5458ba-8cfe-459d-a674-dbb0e8e3dfbd/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 678d1ed0889f06c506279e4c19484f47385b64dd1d4a949ec484624bf8468835 [2021-11-12 22:54:13,424 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-12 22:54:13,447 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-12 22:54:13,450 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-12 22:54:13,452 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-12 22:54:13,453 INFO L275 PluginConnector]: CDTParser initialized [2021-11-12 22:54:13,454 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa5458ba-8cfe-459d-a674-dbb0e8e3dfbd/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-marvell-sky2.cil.i [2021-11-12 22:54:13,541 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa5458ba-8cfe-459d-a674-dbb0e8e3dfbd/bin/utaipan-vmNK8stdcF/data/dd641c197/468dd43af5af4084a805b3b48ddd1b58/FLAG2349b8ead [2021-11-12 22:54:14,827 INFO L306 CDTParser]: Found 1 translation units. [2021-11-12 22:54:14,828 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa5458ba-8cfe-459d-a674-dbb0e8e3dfbd/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-marvell-sky2.cil.i [2021-11-12 22:54:14,921 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa5458ba-8cfe-459d-a674-dbb0e8e3dfbd/bin/utaipan-vmNK8stdcF/data/dd641c197/468dd43af5af4084a805b3b48ddd1b58/FLAG2349b8ead [2021-11-12 22:54:14,959 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa5458ba-8cfe-459d-a674-dbb0e8e3dfbd/bin/utaipan-vmNK8stdcF/data/dd641c197/468dd43af5af4084a805b3b48ddd1b58 [2021-11-12 22:54:14,962 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-12 22:54:14,964 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-12 22:54:14,966 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-12 22:54:14,966 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-12 22:54:14,970 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-12 22:54:14,973 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 10:54:14" (1/1) ... [2021-11-12 22:54:14,975 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@28db8abf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:54:14, skipping insertion in model container [2021-11-12 22:54:14,975 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 10:54:14" (1/1) ... [2021-11-12 22:54:14,985 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-12 22:54:15,219 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 22:54:20,063 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:54:20,187 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:54:20,361 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:54:20,362 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:54:20,757 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:54:20,767 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:54:23,398 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_fa5458ba-8cfe-459d-a674-dbb0e8e3dfbd/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-marvell-sky2.cil.i[596672,596685] [2021-11-12 22:54:23,402 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_fa5458ba-8cfe-459d-a674-dbb0e8e3dfbd/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-marvell-sky2.cil.i[596841,596854] [2021-11-12 22:54:23,402 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_fa5458ba-8cfe-459d-a674-dbb0e8e3dfbd/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-marvell-sky2.cil.i[597008,597021] [2021-11-12 22:54:23,403 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_fa5458ba-8cfe-459d-a674-dbb0e8e3dfbd/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-marvell-sky2.cil.i[597176,597189] [2021-11-12 22:54:23,465 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 22:54:23,571 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-11-12 22:54:23,571 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@6e703bf4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:54:23, skipping insertion in model container [2021-11-12 22:54:23,571 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-12 22:54:23,572 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-12 22:54:23,575 INFO L158 Benchmark]: Toolchain (without parser) took 8609.01ms. Allocated memory was 121.6MB in the beginning and 182.5MB in the end (delta: 60.8MB). Free memory was 80.7MB in the beginning and 70.8MB in the end (delta: 9.9MB). Peak memory consumption was 78.6MB. Max. memory is 16.1GB. [2021-11-12 22:54:23,576 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 94.4MB. Free memory was 51.2MB in the beginning and 51.2MB in the end (delta: 43.5kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-12 22:54:23,578 INFO L158 Benchmark]: CACSL2BoogieTranslator took 8605.76ms. Allocated memory was 121.6MB in the beginning and 182.5MB in the end (delta: 60.8MB). Free memory was 80.2MB in the beginning and 70.8MB in the end (delta: 9.4MB). Peak memory consumption was 78.6MB. Max. memory is 16.1GB. [2021-11-12 22:54:23,580 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 94.4MB. Free memory was 51.2MB in the beginning and 51.2MB in the end (delta: 43.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 8605.76ms. Allocated memory was 121.6MB in the beginning and 182.5MB in the end (delta: 60.8MB). Free memory was 80.2MB in the beginning and 70.8MB in the end (delta: 9.4MB). Peak memory consumption was 78.6MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 7129]: 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_fa5458ba-8cfe-459d-a674-dbb0e8e3dfbd/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa5458ba-8cfe-459d-a674-dbb0e8e3dfbd/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_fa5458ba-8cfe-459d-a674-dbb0e8e3dfbd/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa5458ba-8cfe-459d-a674-dbb0e8e3dfbd/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-marvell-sky2.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa5458ba-8cfe-459d-a674-dbb0e8e3dfbd/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_fa5458ba-8cfe-459d-a674-dbb0e8e3dfbd/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 678d1ed0889f06c506279e4c19484f47385b64dd1d4a949ec484624bf8468835 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-12 22:54:26,128 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-12 22:54:26,132 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-12 22:54:26,190 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-12 22:54:26,190 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-12 22:54:26,195 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-12 22:54:26,198 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-12 22:54:26,203 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-12 22:54:26,207 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-12 22:54:26,218 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-12 22:54:26,220 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-12 22:54:26,222 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-12 22:54:26,222 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-12 22:54:26,225 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-12 22:54:26,227 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-12 22:54:26,233 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-12 22:54:26,235 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-12 22:54:26,237 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-12 22:54:26,239 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-12 22:54:26,248 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-12 22:54:26,250 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-12 22:54:26,251 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-12 22:54:26,254 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-12 22:54:26,257 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-12 22:54:26,262 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-12 22:54:26,262 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-12 22:54:26,263 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-12 22:54:26,265 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-12 22:54:26,266 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-12 22:54:26,267 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-12 22:54:26,267 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-12 22:54:26,268 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-12 22:54:26,270 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-12 22:54:26,271 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-12 22:54:26,273 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-12 22:54:26,273 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-12 22:54:26,274 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-12 22:54:26,288 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-12 22:54:26,288 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-12 22:54:26,291 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-12 22:54:26,292 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-12 22:54:26,301 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa5458ba-8cfe-459d-a674-dbb0e8e3dfbd/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-12 22:54:26,353 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-12 22:54:26,354 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-12 22:54:26,355 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-12 22:54:26,355 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-12 22:54:26,356 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-12 22:54:26,356 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-12 22:54:26,356 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-12 22:54:26,357 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-12 22:54:26,357 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-12 22:54:26,357 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-12 22:54:26,359 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-12 22:54:26,360 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-12 22:54:26,360 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-12 22:54:26,360 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-12 22:54:26,361 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-12 22:54:26,361 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-12 22:54:26,361 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-12 22:54:26,361 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-12 22:54:26,362 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-12 22:54:26,362 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-12 22:54:26,362 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-12 22:54:26,363 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-12 22:54:26,363 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-12 22:54:26,363 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-12 22:54:26,363 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 22:54:26,364 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-12 22:54:26,364 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-12 22:54:26,364 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-12 22:54:26,365 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-12 22:54:26,365 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-12 22:54:26,365 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-12 22:54:26,365 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-12 22:54:26,366 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-12 22:54:26,366 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_fa5458ba-8cfe-459d-a674-dbb0e8e3dfbd/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa5458ba-8cfe-459d-a674-dbb0e8e3dfbd/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 678d1ed0889f06c506279e4c19484f47385b64dd1d4a949ec484624bf8468835 [2021-11-12 22:54:26,753 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-12 22:54:26,775 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-12 22:54:26,778 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-12 22:54:26,779 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-12 22:54:26,780 INFO L275 PluginConnector]: CDTParser initialized [2021-11-12 22:54:26,782 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa5458ba-8cfe-459d-a674-dbb0e8e3dfbd/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-marvell-sky2.cil.i [2021-11-12 22:54:26,850 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa5458ba-8cfe-459d-a674-dbb0e8e3dfbd/bin/utaipan-vmNK8stdcF/data/0ee1b2fc1/aa31f8a049bf4caeb98386f7f85beae3/FLAG83fd269ef [2021-11-12 22:54:28,143 INFO L306 CDTParser]: Found 1 translation units. [2021-11-12 22:54:28,143 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa5458ba-8cfe-459d-a674-dbb0e8e3dfbd/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-marvell-sky2.cil.i [2021-11-12 22:54:28,343 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa5458ba-8cfe-459d-a674-dbb0e8e3dfbd/bin/utaipan-vmNK8stdcF/data/0ee1b2fc1/aa31f8a049bf4caeb98386f7f85beae3/FLAG83fd269ef [2021-11-12 22:54:28,798 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa5458ba-8cfe-459d-a674-dbb0e8e3dfbd/bin/utaipan-vmNK8stdcF/data/0ee1b2fc1/aa31f8a049bf4caeb98386f7f85beae3 [2021-11-12 22:54:28,801 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-12 22:54:28,803 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-12 22:54:28,805 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-12 22:54:28,806 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-12 22:54:28,810 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-12 22:54:28,811 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 10:54:28" (1/1) ... [2021-11-12 22:54:28,812 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@40763826 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:54:28, skipping insertion in model container [2021-11-12 22:54:28,813 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 10:54:28" (1/1) ... [2021-11-12 22:54:28,822 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-12 22:54:29,112 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 22:54:37,149 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_fa5458ba-8cfe-459d-a674-dbb0e8e3dfbd/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-marvell-sky2.cil.i[596672,596685] [2021-11-12 22:54:37,152 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_fa5458ba-8cfe-459d-a674-dbb0e8e3dfbd/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-marvell-sky2.cil.i[596841,596854] [2021-11-12 22:54:37,153 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_fa5458ba-8cfe-459d-a674-dbb0e8e3dfbd/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-marvell-sky2.cil.i[597008,597021] [2021-11-12 22:54:37,154 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_fa5458ba-8cfe-459d-a674-dbb0e8e3dfbd/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-marvell-sky2.cil.i[597176,597189] [2021-11-12 22:54:37,199 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 22:54:37,296 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-12 22:54:37,526 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 22:54:38,168 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_fa5458ba-8cfe-459d-a674-dbb0e8e3dfbd/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-marvell-sky2.cil.i[596672,596685] [2021-11-12 22:54:38,169 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_fa5458ba-8cfe-459d-a674-dbb0e8e3dfbd/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-marvell-sky2.cil.i[596841,596854] [2021-11-12 22:54:38,170 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_fa5458ba-8cfe-459d-a674-dbb0e8e3dfbd/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-marvell-sky2.cil.i[597008,597021] [2021-11-12 22:54:38,170 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_fa5458ba-8cfe-459d-a674-dbb0e8e3dfbd/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-marvell-sky2.cil.i[597176,597189] [2021-11-12 22:54:38,184 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 22:54:38,268 INFO L203 MainTranslator]: Completed pre-run [2021-11-12 22:54:39,615 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_fa5458ba-8cfe-459d-a674-dbb0e8e3dfbd/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-marvell-sky2.cil.i[596672,596685] [2021-11-12 22:54:39,616 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_fa5458ba-8cfe-459d-a674-dbb0e8e3dfbd/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-marvell-sky2.cil.i[596841,596854] [2021-11-12 22:54:39,628 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_fa5458ba-8cfe-459d-a674-dbb0e8e3dfbd/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-marvell-sky2.cil.i[597008,597021] [2021-11-12 22:54:39,628 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_fa5458ba-8cfe-459d-a674-dbb0e8e3dfbd/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-marvell-sky2.cil.i[597176,597189] [2021-11-12 22:54:39,646 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 22:54:40,251 INFO L208 MainTranslator]: Completed translation [2021-11-12 22:54:40,252 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:54:40 WrapperNode [2021-11-12 22:54:40,252 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-12 22:54:40,253 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-12 22:54:40,254 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-12 22:54:40,254 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-12 22:54:40,262 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:54:40" (1/1) ... [2021-11-12 22:54:40,456 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:54:40" (1/1) ... [2021-11-12 22:54:40,931 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-12 22:54:40,932 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-12 22:54:40,932 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-12 22:54:40,933 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-12 22:54:40,943 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:54:40" (1/1) ... [2021-11-12 22:54:40,943 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:54:40" (1/1) ... [2021-11-12 22:54:41,017 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:54:40" (1/1) ... [2021-11-12 22:54:41,018 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:54:40" (1/1) ... [2021-11-12 22:54:41,296 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:54:40" (1/1) ... [2021-11-12 22:54:41,356 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:54:40" (1/1) ... [2021-11-12 22:54:41,471 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:54:40" (1/1) ... [2021-11-12 22:54:41,544 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-12 22:54:41,545 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-12 22:54:41,545 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-12 22:54:41,545 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-12 22:54:41,546 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:54:40" (1/1) ... [2021-11-12 22:54:41,554 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 22:54:41,567 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa5458ba-8cfe-459d-a674-dbb0e8e3dfbd/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 22:54:41,584 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa5458ba-8cfe-459d-a674-dbb0e8e3dfbd/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-12 22:54:41,600 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa5458ba-8cfe-459d-a674-dbb0e8e3dfbd/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-12 22:54:41,642 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-11-12 22:54:41,642 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-11-12 22:54:41,643 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_remove [2021-11-12 22:54:41,643 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_remove [2021-11-12 22:54:41,643 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_led [2021-11-12 22:54:41,643 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_led [2021-11-12 22:54:41,643 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_alloc_rx_skbs [2021-11-12 22:54:41,644 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_alloc_rx_skbs [2021-11-12 22:54:41,644 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-11-12 22:54:41,644 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-11-12 22:54:41,644 INFO L130 BoogieDeclarations]: Found specification of procedure rx_set_rss [2021-11-12 22:54:41,644 INFO L138 BoogieDeclarations]: Found implementation of procedure rx_set_rss [2021-11-12 22:54:41,645 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_power_aux [2021-11-12 22:54:41,645 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_power_aux [2021-11-12 22:54:41,645 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-11-12 22:54:41,645 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-11-12 22:54:41,646 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_toio [2021-11-12 22:54:41,646 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_toio [2021-11-12 22:54:41,646 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2021-11-12 22:54:41,646 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2021-11-12 22:54:41,646 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_add_filter [2021-11-12 22:54:41,647 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_add_filter [2021-11-12 22:54:41,647 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2021-11-12 22:54:41,647 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2021-11-12 22:54:41,647 INFO L130 BoogieDeclarations]: Found specification of procedure PageTail [2021-11-12 22:54:41,648 INFO L138 BoogieDeclarations]: Found implementation of procedure PageTail [2021-11-12 22:54:41,648 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_size_set [2021-11-12 22:54:41,649 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_size_set [2021-11-12 22:54:41,649 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2021-11-12 22:54:41,649 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2021-11-12 22:54:41,649 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2021-11-12 22:54:41,649 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2021-11-12 22:54:41,650 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_init_netdev [2021-11-12 22:54:41,650 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_init_netdev [2021-11-12 22:54:41,650 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2021-11-12 22:54:41,650 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2021-11-12 22:54:41,651 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2021-11-12 22:54:41,651 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2021-11-12 22:54:41,651 INFO L130 BoogieDeclarations]: Found specification of procedure netif_schedule_queue [2021-11-12 22:54:41,652 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_schedule_queue [2021-11-12 22:54:41,652 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_get_regs_len [2021-11-12 22:54:41,652 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_get_regs_len [2021-11-12 22:54:41,653 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-11-12 22:54:41,654 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-11-12 22:54:41,654 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_rx_update [2021-11-12 22:54:41,655 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_rx_update [2021-11-12 22:54:41,655 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-11-12 22:54:41,655 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-11-12 22:54:41,655 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-12 22:54:41,656 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-12 22:54:41,656 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_ramset [2021-11-12 22:54:41,656 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_ramset [2021-11-12 22:54:41,657 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~C_ULONG~X~C_ULONG~X~C_INT~X~$Pointer$~TO~~dma_addr_t~0 [2021-11-12 22:54:41,657 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~C_ULONG~X~C_ULONG~X~C_INT~X~$Pointer$~TO~~dma_addr_t~0 [2021-11-12 22:54:41,657 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_update_features [2021-11-12 22:54:41,658 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_update_features [2021-11-12 22:54:41,658 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_netpoll [2021-11-12 22:54:41,658 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_netpoll [2021-11-12 22:54:41,658 INFO L130 BoogieDeclarations]: Found specification of procedure skb_transport_header [2021-11-12 22:54:41,659 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_transport_header [2021-11-12 22:54:41,659 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-11-12 22:54:41,660 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-11-12 22:54:41,660 INFO L130 BoogieDeclarations]: Found specification of procedure dev_close [2021-11-12 22:54:41,660 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_close [2021-11-12 22:54:41,660 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_dma_mask [2021-11-12 22:54:41,660 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_dma_mask [2021-11-12 22:54:41,661 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2021-11-12 22:54:41,661 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2021-11-12 22:54:41,661 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-11-12 22:54:41,661 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-11-12 22:54:41,661 INFO L130 BoogieDeclarations]: Found specification of procedure __netif_tx_lock [2021-11-12 22:54:41,662 INFO L138 BoogieDeclarations]: Found implementation of procedure __netif_tx_lock [2021-11-12 22:54:41,662 INFO L130 BoogieDeclarations]: Found specification of procedure napi_enable [2021-11-12 22:54:41,662 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_enable [2021-11-12 22:54:41,662 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2021-11-12 22:54:41,663 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2021-11-12 22:54:41,663 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-12 22:54:41,663 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2021-11-12 22:54:41,664 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2021-11-12 22:54:41,664 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2021-11-12 22:54:41,664 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2021-11-12 22:54:41,664 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_rx_add [2021-11-12 22:54:41,665 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_rx_add [2021-11-12 22:54:41,666 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_3 [2021-11-12 22:54:41,666 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_3 [2021-11-12 22:54:41,666 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2021-11-12 22:54:41,666 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2021-11-12 22:54:41,666 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_register_netdev [2021-11-12 22:54:41,667 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_register_netdev [2021-11-12 22:54:41,667 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_5 [2021-11-12 22:54:41,667 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_5 [2021-11-12 22:54:41,667 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer [2021-11-12 22:54:41,667 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer [2021-11-12 22:54:41,667 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_rx_map_skb [2021-11-12 22:54:41,668 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_rx_map_skb [2021-11-12 22:54:41,668 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_resume [2021-11-12 22:54:41,668 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_resume [2021-11-12 22:54:41,668 INFO L130 BoogieDeclarations]: Found specification of procedure roundup_ring_size [2021-11-12 22:54:41,669 INFO L138 BoogieDeclarations]: Found implementation of procedure roundup_ring_size [2021-11-12 22:54:41,669 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-12 22:54:41,669 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-12 22:54:41,669 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-11-12 22:54:41,670 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-11-12 22:54:41,671 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-12 22:54:41,672 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-12 22:54:41,675 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_pci_read32 [2021-11-12 22:54:41,675 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_pci_read32 [2021-11-12 22:54:41,675 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2021-11-12 22:54:41,676 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2021-11-12 22:54:41,676 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~C_ULONG~X~C_INT~X~$Pointer$~TO~VOID [2021-11-12 22:54:41,677 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~C_ULONG~X~C_INT~X~$Pointer$~TO~VOID [2021-11-12 22:54:41,677 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_disable [2021-11-12 22:54:41,678 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_disable [2021-11-12 22:54:41,678 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_rx_clean [2021-11-12 22:54:41,684 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_rx_clean [2021-11-12 22:54:41,684 INFO L130 BoogieDeclarations]: Found specification of procedure napi_disable [2021-11-12 22:54:41,685 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_disable [2021-11-12 22:54:41,685 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-11-12 22:54:41,685 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-11-12 22:54:41,685 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_hw_down [2021-11-12 22:54:41,686 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_hw_down [2021-11-12 22:54:41,686 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2021-11-12 22:54:41,686 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2021-11-12 22:54:41,686 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_phy_reinit [2021-11-12 22:54:41,686 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_phy_reinit [2021-11-12 22:54:41,686 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-11-12 22:54:41,687 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-11-12 22:54:41,687 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_pci_read16 [2021-11-12 22:54:41,687 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_pci_read16 [2021-11-12 22:54:41,687 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-12 22:54:41,687 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-12 22:54:41,688 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_pci_write16 [2021-11-12 22:54:41,688 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_pci_write16 [2021-11-12 22:54:41,688 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2021-11-12 22:54:41,688 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2021-11-12 22:54:41,688 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_free_buffers [2021-11-12 22:54:41,688 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_free_buffers [2021-11-12 22:54:41,689 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2021-11-12 22:54:41,689 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2021-11-12 22:54:41,689 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-12 22:54:41,689 INFO L130 BoogieDeclarations]: Found specification of procedure napi_schedule [2021-11-12 22:54:41,689 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_schedule [2021-11-12 22:54:41,690 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_fromio [2021-11-12 22:54:41,690 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_fromio [2021-11-12 22:54:41,690 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2021-11-12 22:54:41,690 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2021-11-12 22:54:41,690 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_read32 [2021-11-12 22:54:41,690 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_read32 [2021-11-12 22:54:41,691 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2021-11-12 22:54:41,691 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_set_multicast [2021-11-12 22:54:41,691 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_set_multicast [2021-11-12 22:54:41,691 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2021-11-12 22:54:41,691 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2021-11-12 22:54:41,692 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_prefetch_init [2021-11-12 22:54:41,692 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_prefetch_init [2021-11-12 22:54:41,692 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_reset [2021-11-12 22:54:41,692 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_reset [2021-11-12 22:54:41,692 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2021-11-12 22:54:41,692 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2021-11-12 22:54:41,693 INFO L130 BoogieDeclarations]: Found specification of procedure ip_hdr [2021-11-12 22:54:41,693 INFO L138 BoogieDeclarations]: Found implementation of procedure ip_hdr [2021-11-12 22:54:41,693 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_cmd_speed_set [2021-11-12 22:54:41,693 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_cmd_speed_set [2021-11-12 22:54:41,693 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_phy_lock_of_sky2_port [2021-11-12 22:54:41,693 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_phy_lock_of_sky2_port [2021-11-12 22:54:41,694 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-12 22:54:41,694 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-12 22:54:41,694 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_post_probe [2021-11-12 22:54:41,694 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_post_probe [2021-11-12 22:54:41,694 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2021-11-12 22:54:41,695 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2021-11-12 22:54:41,695 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_vpd_wait [2021-11-12 22:54:41,695 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_vpd_wait [2021-11-12 22:54:41,695 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_unmap_page [2021-11-12 22:54:41,695 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_unmap_page [2021-11-12 22:54:41,695 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_shutdown [2021-11-12 22:54:41,696 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_shutdown [2021-11-12 22:54:41,696 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_read16 [2021-11-12 22:54:41,697 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_read16 [2021-11-12 22:54:41,698 INFO L130 BoogieDeclarations]: Found specification of procedure get_tx_le [2021-11-12 22:54:41,698 INFO L138 BoogieDeclarations]: Found implementation of procedure get_tx_le [2021-11-12 22:54:41,698 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_rx_stop [2021-11-12 22:54:41,698 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_rx_stop [2021-11-12 22:54:41,698 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-12 22:54:41,699 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-11-12 22:54:41,699 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-11-12 22:54:41,699 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-12 22:54:41,699 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_all_down [2021-11-12 22:54:41,699 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_all_down [2021-11-12 22:54:41,700 INFO L130 BoogieDeclarations]: Found specification of procedure dma_mapping_error [2021-11-12 22:54:41,700 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_mapping_error [2021-11-12 22:54:41,700 INFO L130 BoogieDeclarations]: Found specification of procedure __gm_phy_read [2021-11-12 22:54:41,700 INFO L138 BoogieDeclarations]: Found implementation of procedure __gm_phy_read [2021-11-12 22:54:41,700 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-11-12 22:54:41,700 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-11-12 22:54:41,701 INFO L130 BoogieDeclarations]: Found specification of procedure pci_find_capability [2021-11-12 22:54:41,701 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_find_capability [2021-11-12 22:54:41,701 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-11-12 22:54:41,701 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-11-12 22:54:41,701 INFO L130 BoogieDeclarations]: Found specification of procedure gma_write16 [2021-11-12 22:54:41,701 INFO L138 BoogieDeclarations]: Found implementation of procedure gma_write16 [2021-11-12 22:54:41,702 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2021-11-12 22:54:41,702 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2021-11-12 22:54:41,702 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_next_rx [2021-11-12 22:54:41,702 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_next_rx [2021-11-12 22:54:41,702 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2021-11-12 22:54:41,703 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2021-11-12 22:54:41,703 INFO L130 BoogieDeclarations]: Found specification of procedure synchronize_irq [2021-11-12 22:54:41,703 INFO L138 BoogieDeclarations]: Found implementation of procedure synchronize_irq [2021-11-12 22:54:41,703 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_get_eeprom_len [2021-11-12 22:54:41,703 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_get_eeprom_len [2021-11-12 22:54:41,703 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~C_INT [2021-11-12 22:54:41,704 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~C_INT [2021-11-12 22:54:41,704 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-11-12 22:54:41,704 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-11-12 22:54:41,704 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_bh_79 [2021-11-12 22:54:41,704 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_bh_79 [2021-11-12 22:54:41,705 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-11-12 22:54:41,705 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_us2clk [2021-11-12 22:54:41,705 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_us2clk [2021-11-12 22:54:41,705 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2021-11-12 22:54:41,705 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2021-11-12 22:54:41,705 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2021-11-12 22:54:41,706 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-12 22:54:41,706 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-12 22:54:41,706 INFO L130 BoogieDeclarations]: Found specification of procedure u64_stats_fetch_retry_bh [2021-11-12 22:54:41,706 INFO L138 BoogieDeclarations]: Found implementation of procedure u64_stats_fetch_retry_bh [2021-11-12 22:54:41,706 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_lock [2021-11-12 22:54:41,707 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_lock [2021-11-12 22:54:41,707 INFO L130 BoogieDeclarations]: Found specification of procedure device_may_wakeup [2021-11-12 22:54:41,707 INFO L138 BoogieDeclarations]: Found implementation of procedure device_may_wakeup [2021-11-12 22:54:41,708 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_automaton_state_1_6 [2021-11-12 22:54:41,712 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_automaton_state_1_6 [2021-11-12 22:54:41,713 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_msi [2021-11-12 22:54:41,713 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_msi [2021-11-12 22:54:41,713 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_qset [2021-11-12 22:54:41,713 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_qset [2021-11-12 22:54:41,713 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_mhz [2021-11-12 22:54:41,714 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_mhz [2021-11-12 22:54:41,714 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2021-11-12 22:54:41,714 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2021-11-12 22:54:41,715 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-12 22:54:41,716 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-12 22:54:41,716 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_page [2021-11-12 22:54:41,716 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_page [2021-11-12 22:54:41,716 INFO L130 BoogieDeclarations]: Found specification of procedure get_stats32 [2021-11-12 22:54:41,717 INFO L138 BoogieDeclarations]: Found implementation of procedure get_stats32 [2021-11-12 22:54:41,717 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-12 22:54:41,717 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-12 22:54:41,717 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2021-11-12 22:54:41,717 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2021-11-12 22:54:41,718 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_supported_modes [2021-11-12 22:54:41,718 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_supported_modes [2021-11-12 22:54:41,718 INFO L130 BoogieDeclarations]: Found specification of procedure gm_phy_read [2021-11-12 22:54:41,718 INFO L138 BoogieDeclarations]: Found implementation of procedure gm_phy_read [2021-11-12 22:54:41,718 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_rx_alloc [2021-11-12 22:54:41,718 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_rx_alloc [2021-11-12 22:54:41,719 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~C_INT~structend~~TO~C_INT [2021-11-12 22:54:41,719 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~C_INT~structend~~TO~C_INT [2021-11-12 22:54:41,719 INFO L130 BoogieDeclarations]: Found specification of procedure register_netdev [2021-11-12 22:54:41,719 INFO L138 BoogieDeclarations]: Found implementation of procedure register_netdev [2021-11-12 22:54:41,719 INFO L130 BoogieDeclarations]: Found specification of procedure __netif_tx_unlock [2021-11-12 22:54:41,719 INFO L138 BoogieDeclarations]: Found implementation of procedure __netif_tx_unlock [2021-11-12 22:54:41,720 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-12 22:54:41,720 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-12 22:54:41,720 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_show_addr [2021-11-12 22:54:41,720 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_show_addr [2021-11-12 22:54:41,720 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2021-11-12 22:54:41,721 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2021-11-12 22:54:41,721 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_close [2021-11-12 22:54:41,721 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_close [2021-11-12 22:54:41,721 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2021-11-12 22:54:41,721 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2021-11-12 22:54:41,721 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-12 22:54:41,722 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-12 22:54:41,722 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_rx_start [2021-11-12 22:54:41,722 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_rx_start [2021-11-12 22:54:41,722 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-12 22:54:41,722 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2021-11-12 22:54:41,722 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-12 22:54:41,723 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-12 22:54:41,723 INFO L130 BoogieDeclarations]: Found specification of procedure debugfs_remove [2021-11-12 22:54:41,723 INFO L138 BoogieDeclarations]: Found implementation of procedure debugfs_remove [2021-11-12 22:54:41,723 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-12 22:54:41,723 INFO L130 BoogieDeclarations]: Found specification of procedure get_stats64 [2021-11-12 22:54:41,723 INFO L138 BoogieDeclarations]: Found implementation of procedure get_stats64 [2021-11-12 22:54:41,724 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_sync [2021-11-12 22:54:41,724 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_sync [2021-11-12 22:54:41,724 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_work_sync [2021-11-12 22:54:41,724 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_work_sync [2021-11-12 22:54:41,724 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-11-12 22:54:41,724 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-11-12 22:54:41,725 INFO L130 BoogieDeclarations]: Found specification of procedure pci_is_pcie [2021-11-12 22:54:41,725 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_is_pcie [2021-11-12 22:54:41,725 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_netdev [2021-11-12 22:54:41,725 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_netdev [2021-11-12 22:54:41,725 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-11-12 22:54:41,726 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-11-12 22:54:41,726 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_bh_80 [2021-11-12 22:54:41,726 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_bh_80 [2021-11-12 22:54:41,726 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-12 22:54:41,726 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-12 22:54:41,726 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2021-11-12 22:54:41,727 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2021-11-12 22:54:41,727 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-11-12 22:54:41,727 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-11-12 22:54:41,727 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_hw_up [2021-11-12 22:54:41,727 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_hw_up [2021-11-12 22:54:41,727 INFO L130 BoogieDeclarations]: Found specification of procedure __netdev_alloc_skb [2021-11-12 22:54:41,728 INFO L138 BoogieDeclarations]: Found implementation of procedure __netdev_alloc_skb [2021-11-12 22:54:41,728 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_tx_unmap [2021-11-12 22:54:41,728 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_tx_unmap [2021-11-12 22:54:41,728 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_put_idx [2021-11-12 22:54:41,728 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_put_idx [2021-11-12 22:54:41,728 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2021-11-12 22:54:41,729 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2021-11-12 22:54:41,729 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-12 22:54:41,729 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-12 22:54:41,729 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-11-12 22:54:41,729 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_dma_map [2021-11-12 22:54:41,729 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_dma_map [2021-11-12 22:54:41,730 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~C_INT~X~$Pointer$~TO~C_INT [2021-11-12 22:54:41,730 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~C_INT~X~$Pointer$~TO~C_INT [2021-11-12 22:54:41,730 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_phy_power_up [2021-11-12 22:54:41,730 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_phy_power_up [2021-11-12 22:54:41,730 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_phy_init [2021-11-12 22:54:41,730 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_phy_init [2021-11-12 22:54:41,731 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_map_page [2021-11-12 22:54:41,731 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_map_page [2021-11-12 22:54:41,731 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_tx_complete [2021-11-12 22:54:41,731 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_tx_complete [2021-11-12 22:54:41,731 INFO L130 BoogieDeclarations]: Found specification of procedure u64_stats_fetch_begin_bh [2021-11-12 22:54:41,731 INFO L138 BoogieDeclarations]: Found implementation of procedure u64_stats_fetch_begin_bh [2021-11-12 22:54:41,732 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_size [2021-11-12 22:54:41,732 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_size [2021-11-12 22:54:41,732 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2021-11-12 22:54:41,732 INFO L130 BoogieDeclarations]: Found specification of procedure gma_read16 [2021-11-12 22:54:41,732 INFO L138 BoogieDeclarations]: Found implementation of procedure gma_read16 [2021-11-12 22:54:41,733 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-12 22:54:41,733 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-12 22:54:41,733 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-12 22:54:41,733 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-12 22:54:41,733 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2021-11-12 22:54:41,733 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-12 22:54:41,734 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-12 22:54:41,734 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_all_up [2021-11-12 22:54:41,734 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_all_up [2021-11-12 22:54:41,734 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-11-12 22:54:41,734 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-11-12 22:54:41,734 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_tx_timeout [2021-11-12 22:54:41,735 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_tx_timeout [2021-11-12 22:54:41,735 INFO L130 BoogieDeclarations]: Found specification of procedure request_irq [2021-11-12 22:54:41,735 INFO L138 BoogieDeclarations]: Found implementation of procedure request_irq [2021-11-12 22:54:41,735 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_wol_supported [2021-11-12 22:54:41,735 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_wol_supported [2021-11-12 22:54:41,735 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_pci_write32 [2021-11-12 22:54:41,736 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_pci_write32 [2021-11-12 22:54:41,736 INFO L130 BoogieDeclarations]: Found specification of procedure seq_read [2021-11-12 22:54:41,736 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_read [2021-11-12 22:54:41,736 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_rx_submit [2021-11-12 22:54:41,736 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_rx_submit [2021-11-12 22:54:41,737 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_unlock [2021-11-12 22:54:41,737 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_unlock [2021-11-12 22:54:41,737 INFO L130 BoogieDeclarations]: Found specification of procedure kmemcheck_mark_initialized [2021-11-12 22:54:41,737 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemcheck_mark_initialized [2021-11-12 22:54:41,737 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_vlan_mode [2021-11-12 22:54:41,737 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_vlan_mode [2021-11-12 22:54:41,738 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_read8 [2021-11-12 22:54:41,738 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_read8 [2021-11-12 22:54:41,739 INFO L130 BoogieDeclarations]: Found specification of procedure u64_stats_update_begin [2021-11-12 22:54:41,739 INFO L138 BoogieDeclarations]: Found implementation of procedure u64_stats_update_begin [2021-11-12 22:54:41,739 INFO L130 BoogieDeclarations]: Found specification of procedure gma_read32 [2021-11-12 22:54:41,739 INFO L138 BoogieDeclarations]: Found implementation of procedure gma_read32 [2021-11-12 22:54:41,740 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_phy_lock_of_sky2_port [2021-11-12 22:54:41,740 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_phy_lock_of_sky2_port [2021-11-12 22:54:41,740 INFO L130 BoogieDeclarations]: Found specification of procedure gma_set_addr [2021-11-12 22:54:41,740 INFO L138 BoogieDeclarations]: Found implementation of procedure gma_set_addr [2021-11-12 22:54:41,740 INFO L130 BoogieDeclarations]: Found specification of procedure kcalloc [2021-11-12 22:54:41,740 INFO L138 BoogieDeclarations]: Found implementation of procedure kcalloc [2021-11-12 22:54:41,741 INFO L130 BoogieDeclarations]: Found specification of procedure __netif_schedule [2021-11-12 22:54:41,741 INFO L138 BoogieDeclarations]: Found implementation of procedure __netif_schedule [2021-11-12 22:54:41,741 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2021-11-12 22:54:41,741 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2021-11-12 22:54:41,741 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2021-11-12 22:54:41,742 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2021-11-12 22:54:41,742 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2021-11-12 22:54:41,742 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2021-11-12 22:54:41,742 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-12 22:54:41,742 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-12 22:54:41,742 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2021-11-12 22:54:41,743 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-12 22:54:41,743 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-12 22:54:41,743 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_nway_reset [2021-11-12 22:54:41,743 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_nway_reset [2021-11-12 22:54:41,743 INFO L130 BoogieDeclarations]: Found specification of procedure kfree_skb [2021-11-12 22:54:41,743 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree_skb [2021-11-12 22:54:41,744 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_pre_probe [2021-11-12 22:54:41,744 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_pre_probe [2021-11-12 22:54:41,744 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2021-11-12 22:54:41,744 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2021-11-12 22:54:41,744 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_request_irq [2021-11-12 22:54:41,744 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_request_irq [2021-11-12 22:54:41,745 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-12 22:54:41,745 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-12 22:54:41,745 INFO L130 BoogieDeclarations]: Found specification of procedure tx_avail [2021-11-12 22:54:41,745 INFO L138 BoogieDeclarations]: Found implementation of procedure tx_avail [2021-11-12 22:54:41,745 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_rx_unmap_skb [2021-11-12 22:54:41,745 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_rx_unmap_skb [2021-11-12 22:54:41,746 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2021-11-12 22:54:41,746 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2021-11-12 22:54:41,746 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_clk2us [2021-11-12 22:54:41,746 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_clk2us [2021-11-12 22:54:41,746 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_set_tx_stfwd [2021-11-12 22:54:41,746 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_set_tx_stfwd [2021-11-12 22:54:41,747 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_enable_rx_tx [2021-11-12 22:54:41,747 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_enable_rx_tx [2021-11-12 22:54:41,747 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-11-12 22:54:41,747 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-11-12 22:54:41,747 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_page [2021-11-12 22:54:41,748 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_page [2021-11-12 22:54:41,748 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_sky2_cleanup_module_22_2 [2021-11-12 22:54:41,748 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_sky2_cleanup_module_22_2 [2021-11-12 22:54:41,748 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_mapping_error [2021-11-12 22:54:41,748 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_mapping_error [2021-11-12 22:54:41,748 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_setup_irq [2021-11-12 22:54:41,749 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_setup_irq [2021-11-12 22:54:41,749 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-12 22:54:41,749 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-12 22:54:41,749 INFO L130 BoogieDeclarations]: Found specification of procedure net_ratelimit [2021-11-12 22:54:41,749 INFO L138 BoogieDeclarations]: Found implementation of procedure net_ratelimit [2021-11-12 22:54:41,749 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_is_copper [2021-11-12 22:54:41,750 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_is_copper [2021-11-12 22:54:41,750 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2021-11-12 22:54:41,750 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2021-11-12 22:54:41,750 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_suspend [2021-11-12 22:54:41,750 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_suspend [2021-11-12 22:54:41,750 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_automaton_state_2_6 [2021-11-12 22:54:41,751 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_automaton_state_2_6 [2021-11-12 22:54:41,751 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_stop_queue [2021-11-12 22:54:41,751 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_stop_queue [2021-11-12 22:54:41,751 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_write16 [2021-11-12 22:54:41,751 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_write16 [2021-11-12 22:54:41,751 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-12 22:54:41,752 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-12 22:54:41,752 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2021-11-12 22:54:41,752 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2021-11-12 22:54:41,752 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_write8 [2021-11-12 22:54:41,752 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_write8 [2021-11-12 22:54:41,752 INFO L130 BoogieDeclarations]: Found specification of procedure gm_phy_write [2021-11-12 22:54:41,753 INFO L138 BoogieDeclarations]: Found implementation of procedure gm_phy_write [2021-11-12 22:54:41,753 INFO L130 BoogieDeclarations]: Found specification of procedure dql_avail [2021-11-12 22:54:41,753 INFO L138 BoogieDeclarations]: Found implementation of procedure dql_avail [2021-11-12 22:54:41,753 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2021-11-12 22:54:41,753 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2021-11-12 22:54:41,753 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_write32 [2021-11-12 22:54:41,754 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_write32 [2021-11-12 22:54:41,754 INFO L130 BoogieDeclarations]: Found specification of procedure gma_read64 [2021-11-12 22:54:41,754 INFO L138 BoogieDeclarations]: Found implementation of procedure gma_read64 [2021-11-12 22:54:41,754 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-11-12 22:54:41,754 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-11-12 22:54:41,754 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2021-11-12 22:54:41,755 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2021-11-12 22:54:41,755 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_open [2021-11-12 22:54:41,755 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_open [2021-11-12 22:54:41,755 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2021-11-12 22:54:43,841 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-12 22:56:05,691 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-12 22:56:05,945 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-12 22:56:05,946 INFO L299 CfgBuilder]: Removed 11 assume(true) statements. [2021-11-12 22:56:05,954 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 10:56:05 BoogieIcfgContainer [2021-11-12 22:56:05,955 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-12 22:56:05,957 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-12 22:56:05,957 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-12 22:56:05,960 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-12 22:56:05,960 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 10:54:28" (1/3) ... [2021-11-12 22:56:05,961 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@224bf090 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 10:56:05, skipping insertion in model container [2021-11-12 22:56:05,961 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:54:40" (2/3) ... [2021-11-12 22:56:05,961 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@224bf090 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 10:56:05, skipping insertion in model container [2021-11-12 22:56:05,962 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 10:56:05" (3/3) ... [2021-11-12 22:56:05,963 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-marvell-sky2.cil.i [2021-11-12 22:56:05,970 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-12 22:56:05,970 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-11-12 22:56:06,066 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-12 22:56:06,075 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-12 22:56:06,076 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-11-12 22:56:06,212 INFO L276 IsEmpty]: Start isEmpty. Operand has 4377 states, 2916 states have (on average 1.2908093278463648) internal successors, (3764), 2997 states have internal predecessors, (3764), 1244 states have call successors, (1244), 216 states have call predecessors, (1244), 215 states have return successors, (1234), 1209 states have call predecessors, (1234), 1234 states have call successors, (1234) [2021-11-12 22:56:06,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 383 [2021-11-12 22:56:06,252 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:56:06,253 INFO L514 BasicCegarLoop]: trace histogram [33, 33, 32, 32, 32, 32, 32, 32, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:56:06,254 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-12 22:56:06,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:56:06,260 INFO L85 PathProgramCache]: Analyzing trace with hash -881809036, now seen corresponding path program 1 times [2021-11-12 22:56:06,289 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:56:06,289 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1339947741] [2021-11-12 22:56:06,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:56:06,290 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:56:06,291 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa5458ba-8cfe-459d-a674-dbb0e8e3dfbd/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:56:06,294 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa5458ba-8cfe-459d-a674-dbb0e8e3dfbd/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:56:06,296 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa5458ba-8cfe-459d-a674-dbb0e8e3dfbd/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-12 22:56:22,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:56:23,161 INFO L263 TraceCheckSpWp]: Trace formula consists of 5045 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-12 22:56:23,193 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:56:24,392 INFO L134 CoverageAnalysis]: Checked inductivity of 4560 backedges. 96 proven. 0 refuted. 0 times theorem prover too weak. 4464 trivial. 0 not checked. [2021-11-12 22:56:24,392 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:56:25,761 INFO L134 CoverageAnalysis]: Checked inductivity of 4560 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4560 trivial. 0 not checked. [2021-11-12 22:56:25,763 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:56:25,763 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1339947741] [2021-11-12 22:56:25,765 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1339947741] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:56:25,766 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:56:25,766 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-12 22:56:25,769 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1563011445] [2021-11-12 22:56:25,770 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:56:25,779 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-12 22:56:25,779 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:56:25,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-12 22:56:25,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 22:56:25,839 INFO L87 Difference]: Start difference. First operand has 4377 states, 2916 states have (on average 1.2908093278463648) internal successors, (3764), 2997 states have internal predecessors, (3764), 1244 states have call successors, (1244), 216 states have call predecessors, (1244), 215 states have return successors, (1234), 1209 states have call predecessors, (1234), 1234 states have call successors, (1234) Second operand has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 4 states have call successors, (39), 3 states have call predecessors, (39), 3 states have return successors, (37), 4 states have call predecessors, (37), 4 states have call successors, (37) [2021-11-12 22:56:28,465 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.61s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:56:58,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:56:58,127 INFO L93 Difference]: Finished difference Result 16898 states and 24529 transitions. [2021-11-12 22:56:58,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 22:56:58,136 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 4 states have call successors, (39), 3 states have call predecessors, (39), 3 states have return successors, (37), 4 states have call predecessors, (37), 4 states have call successors, (37) Word has length 382 [2021-11-12 22:56:58,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:56:58,288 INFO L225 Difference]: With dead ends: 16898 [2021-11-12 22:56:58,288 INFO L226 Difference]: Without dead ends: 12562 [2021-11-12 22:56:58,336 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 762 GetRequests, 760 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 22:56:58,340 INFO L933 BasicCegarLoop]: 8459 mSDtfsCounter, 11837 mSDsluCounter, 11224 mSDsCounter, 0 mSdLazyCounter, 2432 mSolverCounterSat, 25 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 29642.26ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 11837 SdHoareTripleChecker+Valid, 19683 SdHoareTripleChecker+Invalid, 2458 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 123.07ms SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 2432 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 31200.15ms IncrementalHoareTripleChecker+Time [2021-11-12 22:56:58,341 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11837 Valid, 19683 Invalid, 2458 Unknown, 0 Unchecked, 123.07ms Time], IncrementalHoareTripleChecker [25 Valid, 2432 Invalid, 1 Unknown, 0 Unchecked, 31200.15ms Time] [2021-11-12 22:56:58,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12562 states. [2021-11-12 22:56:59,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12562 to 12533. [2021-11-12 22:56:59,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12533 states, 8347 states have (on average 1.279262010303103) internal successors, (10678), 8586 states have internal predecessors, (10678), 3545 states have call successors, (3545), 639 states have call predecessors, (3545), 638 states have return successors, (3541), 3466 states have call predecessors, (3541), 3541 states have call successors, (3541) [2021-11-12 22:56:59,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12533 states to 12533 states and 17764 transitions. [2021-11-12 22:56:59,537 INFO L78 Accepts]: Start accepts. Automaton has 12533 states and 17764 transitions. Word has length 382 [2021-11-12 22:56:59,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:56:59,545 INFO L470 AbstractCegarLoop]: Abstraction has 12533 states and 17764 transitions. [2021-11-12 22:56:59,546 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 4 states have call successors, (39), 3 states have call predecessors, (39), 3 states have return successors, (37), 4 states have call predecessors, (37), 4 states have call successors, (37) [2021-11-12 22:56:59,547 INFO L276 IsEmpty]: Start isEmpty. Operand 12533 states and 17764 transitions. [2021-11-12 22:56:59,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 416 [2021-11-12 22:56:59,578 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:56:59,579 INFO L514 BasicCegarLoop]: trace histogram [33, 33, 32, 32, 32, 32, 32, 32, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:56:59,739 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa5458ba-8cfe-459d-a674-dbb0e8e3dfbd/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-12 22:56:59,804 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa5458ba-8cfe-459d-a674-dbb0e8e3dfbd/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:56:59,804 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-12 22:56:59,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:56:59,805 INFO L85 PathProgramCache]: Analyzing trace with hash 265039906, now seen corresponding path program 1 times [2021-11-12 22:56:59,813 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:56:59,813 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [470618610] [2021-11-12 22:56:59,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:56:59,814 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:56:59,814 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa5458ba-8cfe-459d-a674-dbb0e8e3dfbd/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:56:59,816 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa5458ba-8cfe-459d-a674-dbb0e8e3dfbd/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:56:59,862 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa5458ba-8cfe-459d-a674-dbb0e8e3dfbd/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-12 22:57:16,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:57:17,261 INFO L263 TraceCheckSpWp]: Trace formula consists of 5199 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-12 22:57:17,283 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:57:18,669 INFO L134 CoverageAnalysis]: Checked inductivity of 4560 backedges. 96 proven. 0 refuted. 0 times theorem prover too weak. 4464 trivial. 0 not checked. [2021-11-12 22:57:18,670 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:57:20,024 INFO L134 CoverageAnalysis]: Checked inductivity of 4560 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4560 trivial. 0 not checked. [2021-11-12 22:57:20,025 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:57:20,025 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [470618610] [2021-11-12 22:57:20,025 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [470618610] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:57:20,025 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:57:20,026 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-12 22:57:20,026 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [419077780] [2021-11-12 22:57:20,026 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:57:20,028 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-12 22:57:20,029 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:57:20,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-12 22:57:20,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 22:57:20,030 INFO L87 Difference]: Start difference. First operand 12533 states and 17764 transitions. Second operand has 4 states, 4 states have (on average 27.0) internal successors, (108), 4 states have internal predecessors, (108), 4 states have call successors, (47), 3 states have call predecessors, (47), 3 states have return successors, (41), 4 states have call predecessors, (41), 4 states have call successors, (41) [2021-11-12 22:57:22,621 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.59s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:57:53,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:57:53,486 INFO L93 Difference]: Finished difference Result 39748 states and 56261 transitions. [2021-11-12 22:57:53,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 22:57:53,487 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.0) internal successors, (108), 4 states have internal predecessors, (108), 4 states have call successors, (47), 3 states have call predecessors, (47), 3 states have return successors, (41), 4 states have call predecessors, (41), 4 states have call successors, (41) Word has length 415 [2021-11-12 22:57:53,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:57:53,751 INFO L225 Difference]: With dead ends: 39748 [2021-11-12 22:57:53,751 INFO L226 Difference]: Without dead ends: 27284 [2021-11-12 22:57:53,838 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 828 GetRequests, 826 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 22:57:53,839 INFO L933 BasicCegarLoop]: 8313 mSDtfsCounter, 11345 mSDsluCounter, 10342 mSDsCounter, 0 mSdLazyCounter, 2478 mSolverCounterSat, 41 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 30200.83ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 11345 SdHoareTripleChecker+Valid, 18655 SdHoareTripleChecker+Invalid, 2520 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 78.20ms SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 2478 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 31719.92ms IncrementalHoareTripleChecker+Time [2021-11-12 22:57:53,840 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11345 Valid, 18655 Invalid, 2520 Unknown, 0 Unchecked, 78.20ms Time], IncrementalHoareTripleChecker [41 Valid, 2478 Invalid, 1 Unknown, 0 Unchecked, 31719.92ms Time] [2021-11-12 22:57:53,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27284 states. [2021-11-12 22:57:55,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27284 to 27228. [2021-11-12 22:57:55,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27228 states, 18096 states have (on average 1.2766357206012378) internal successors, (23102), 18610 states have internal predecessors, (23102), 7686 states have call successors, (7686), 1446 states have call predecessors, (7686), 1443 states have return successors, (7682), 7502 states have call predecessors, (7682), 7682 states have call successors, (7682) [2021-11-12 22:57:55,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27228 states to 27228 states and 38470 transitions. [2021-11-12 22:57:55,818 INFO L78 Accepts]: Start accepts. Automaton has 27228 states and 38470 transitions. Word has length 415 [2021-11-12 22:57:55,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:57:55,821 INFO L470 AbstractCegarLoop]: Abstraction has 27228 states and 38470 transitions. [2021-11-12 22:57:55,821 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.0) internal successors, (108), 4 states have internal predecessors, (108), 4 states have call successors, (47), 3 states have call predecessors, (47), 3 states have return successors, (41), 4 states have call predecessors, (41), 4 states have call successors, (41) [2021-11-12 22:57:55,821 INFO L276 IsEmpty]: Start isEmpty. Operand 27228 states and 38470 transitions. [2021-11-12 22:57:55,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 417 [2021-11-12 22:57:55,843 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:57:55,843 INFO L514 BasicCegarLoop]: trace histogram [33, 33, 32, 32, 32, 32, 32, 32, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:57:56,015 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa5458ba-8cfe-459d-a674-dbb0e8e3dfbd/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-12 22:57:56,044 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa5458ba-8cfe-459d-a674-dbb0e8e3dfbd/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:57:56,045 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-12 22:57:56,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:57:56,046 INFO L85 PathProgramCache]: Analyzing trace with hash -1488171700, now seen corresponding path program 1 times [2021-11-12 22:57:56,053 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:57:56,053 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [555228395] [2021-11-12 22:57:56,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:57:56,054 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:57:56,054 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa5458ba-8cfe-459d-a674-dbb0e8e3dfbd/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:57:56,055 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa5458ba-8cfe-459d-a674-dbb0e8e3dfbd/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:57:56,077 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa5458ba-8cfe-459d-a674-dbb0e8e3dfbd/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-12 22:58:12,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:58:13,093 INFO L263 TraceCheckSpWp]: Trace formula consists of 5200 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-12 22:58:13,105 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:58:14,455 INFO L134 CoverageAnalysis]: Checked inductivity of 4560 backedges. 96 proven. 0 refuted. 0 times theorem prover too weak. 4464 trivial. 0 not checked. [2021-11-12 22:58:14,455 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:58:15,853 INFO L134 CoverageAnalysis]: Checked inductivity of 4560 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4560 trivial. 0 not checked. [2021-11-12 22:58:15,854 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:58:15,857 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [555228395] [2021-11-12 22:58:15,857 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [555228395] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:58:15,857 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:58:15,857 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-12 22:58:15,858 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [289272230] [2021-11-12 22:58:15,858 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:58:15,860 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-12 22:58:15,860 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:58:15,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-12 22:58:15,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 22:58:15,862 INFO L87 Difference]: Start difference. First operand 27228 states and 38470 transitions. Second operand has 4 states, 4 states have (on average 27.5) internal successors, (110), 4 states have internal predecessors, (110), 4 states have call successors, (47), 3 states have call predecessors, (47), 3 states have return successors, (41), 4 states have call predecessors, (41), 4 states have call successors, (41) [2021-11-12 22:58:18,459 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:58:52,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:58:52,779 INFO L93 Difference]: Finished difference Result 104947 states and 148389 transitions. [2021-11-12 22:58:52,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 22:58:52,780 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.5) internal successors, (110), 4 states have internal predecessors, (110), 4 states have call successors, (47), 3 states have call predecessors, (47), 3 states have return successors, (41), 4 states have call predecessors, (41), 4 states have call successors, (41) Word has length 416 [2021-11-12 22:58:52,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:58:53,569 INFO L225 Difference]: With dead ends: 104947 [2021-11-12 22:58:53,569 INFO L226 Difference]: Without dead ends: 77788 [2021-11-12 22:58:53,750 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 830 GetRequests, 828 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 22:58:53,754 INFO L933 BasicCegarLoop]: 10146 mSDtfsCounter, 14242 mSDsluCounter, 9228 mSDsCounter, 0 mSdLazyCounter, 2609 mSolverCounterSat, 1939 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 32152.38ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 14242 SdHoareTripleChecker+Valid, 19374 SdHoareTripleChecker+Invalid, 4549 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 66.12ms SdHoareTripleChecker+Time, 1939 IncrementalHoareTripleChecker+Valid, 2609 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 34282.16ms IncrementalHoareTripleChecker+Time [2021-11-12 22:58:53,755 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [14242 Valid, 19374 Invalid, 4549 Unknown, 0 Unchecked, 66.12ms Time], IncrementalHoareTripleChecker [1939 Valid, 2609 Invalid, 1 Unknown, 0 Unchecked, 34282.16ms Time] [2021-11-12 22:58:53,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77788 states. [2021-11-12 22:58:59,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77788 to 77704. [2021-11-12 22:58:59,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77704 states, 51454 states have (on average 1.2751583939052358) internal successors, (65612), 52930 states have internal predecessors, (65612), 22048 states have call successors, (22048), 4206 states have call predecessors, (22048), 4199 states have return successors, (22044), 21526 states have call predecessors, (22044), 22044 states have call successors, (22044) [2021-11-12 22:59:00,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77704 states to 77704 states and 109704 transitions. [2021-11-12 22:59:00,528 INFO L78 Accepts]: Start accepts. Automaton has 77704 states and 109704 transitions. Word has length 416 [2021-11-12 22:59:00,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:59:00,529 INFO L470 AbstractCegarLoop]: Abstraction has 77704 states and 109704 transitions. [2021-11-12 22:59:00,530 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.5) internal successors, (110), 4 states have internal predecessors, (110), 4 states have call successors, (47), 3 states have call predecessors, (47), 3 states have return successors, (41), 4 states have call predecessors, (41), 4 states have call successors, (41) [2021-11-12 22:59:00,530 INFO L276 IsEmpty]: Start isEmpty. Operand 77704 states and 109704 transitions. [2021-11-12 22:59:00,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 419 [2021-11-12 22:59:00,554 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:59:00,555 INFO L514 BasicCegarLoop]: trace histogram [33, 33, 32, 32, 32, 32, 32, 32, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:59:00,726 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa5458ba-8cfe-459d-a674-dbb0e8e3dfbd/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-12 22:59:00,780 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa5458ba-8cfe-459d-a674-dbb0e8e3dfbd/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:59:00,781 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-12 22:59:00,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:59:00,782 INFO L85 PathProgramCache]: Analyzing trace with hash -265364845, now seen corresponding path program 1 times [2021-11-12 22:59:00,791 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:59:00,792 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1612078284] [2021-11-12 22:59:00,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:59:00,792 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:59:00,792 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa5458ba-8cfe-459d-a674-dbb0e8e3dfbd/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:59:00,793 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa5458ba-8cfe-459d-a674-dbb0e8e3dfbd/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:59:00,831 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa5458ba-8cfe-459d-a674-dbb0e8e3dfbd/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-12 22:59:16,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:59:17,511 INFO L263 TraceCheckSpWp]: Trace formula consists of 5151 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-12 22:59:17,519 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:59:18,862 INFO L134 CoverageAnalysis]: Checked inductivity of 4560 backedges. 96 proven. 0 refuted. 0 times theorem prover too weak. 4464 trivial. 0 not checked. [2021-11-12 22:59:18,862 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:59:20,148 INFO L134 CoverageAnalysis]: Checked inductivity of 4560 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4560 trivial. 0 not checked. [2021-11-12 22:59:20,148 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:59:20,148 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1612078284] [2021-11-12 22:59:20,148 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1612078284] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:59:20,148 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:59:20,149 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-12 22:59:20,149 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [761922577] [2021-11-12 22:59:20,149 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:59:20,149 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-12 22:59:20,150 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:59:20,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-12 22:59:20,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-12 22:59:20,150 INFO L87 Difference]: Start difference. First operand 77704 states and 109704 transitions. Second operand has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 3 states have call successors, (44), 3 states have call predecessors, (44), 3 states have return successors, (41), 3 states have call predecessors, (41), 3 states have call successors, (41) [2021-11-12 22:59:22,741 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.59s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:59:28,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:59:28,634 INFO L93 Difference]: Finished difference Result 201322 states and 283119 transitions. [2021-11-12 22:59:28,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-12 22:59:28,635 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 3 states have call successors, (44), 3 states have call predecessors, (44), 3 states have return successors, (41), 3 states have call predecessors, (41), 3 states have call successors, (41) Word has length 418 [2021-11-12 22:59:28,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:59:29,750 INFO L225 Difference]: With dead ends: 201322 [2021-11-12 22:59:29,751 INFO L226 Difference]: Without dead ends: 123687 [2021-11-12 22:59:29,981 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 834 GetRequests, 833 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-12 22:59:29,982 INFO L933 BasicCegarLoop]: 7111 mSDtfsCounter, 4549 mSDsluCounter, 5977 mSDsCounter, 0 mSdLazyCounter, 120 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3643.33ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4549 SdHoareTripleChecker+Valid, 13088 SdHoareTripleChecker+Invalid, 128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 25.76ms SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 120 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3769.41ms IncrementalHoareTripleChecker+Time [2021-11-12 22:59:29,984 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4549 Valid, 13088 Invalid, 128 Unknown, 0 Unchecked, 25.76ms Time], IncrementalHoareTripleChecker [7 Valid, 120 Invalid, 1 Unknown, 0 Unchecked, 3769.41ms Time] [2021-11-12 22:59:30,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123687 states. [2021-11-12 22:59:37,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123687 to 123643. [2021-11-12 22:59:37,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123643 states, 80470 states have (on average 1.2639492978749844) internal successors, (101710), 82846 states have internal predecessors, (101710), 35810 states have call successors, (35810), 7383 states have call predecessors, (35810), 7360 states have return successors, (35836), 34944 states have call predecessors, (35836), 35806 states have call successors, (35836) [2021-11-12 22:59:38,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123643 states to 123643 states and 173356 transitions. [2021-11-12 22:59:38,451 INFO L78 Accepts]: Start accepts. Automaton has 123643 states and 173356 transitions. Word has length 418 [2021-11-12 22:59:38,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:59:38,454 INFO L470 AbstractCegarLoop]: Abstraction has 123643 states and 173356 transitions. [2021-11-12 22:59:38,454 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 3 states have call successors, (44), 3 states have call predecessors, (44), 3 states have return successors, (41), 3 states have call predecessors, (41), 3 states have call successors, (41) [2021-11-12 22:59:38,454 INFO L276 IsEmpty]: Start isEmpty. Operand 123643 states and 173356 transitions. [2021-11-12 22:59:38,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 444 [2021-11-12 22:59:38,468 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:59:38,469 INFO L514 BasicCegarLoop]: trace histogram [33, 33, 32, 32, 32, 32, 32, 32, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:59:38,634 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa5458ba-8cfe-459d-a674-dbb0e8e3dfbd/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-12 22:59:38,688 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa5458ba-8cfe-459d-a674-dbb0e8e3dfbd/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:59:38,689 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-12 22:59:38,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:59:38,690 INFO L85 PathProgramCache]: Analyzing trace with hash -1842911201, now seen corresponding path program 1 times [2021-11-12 22:59:38,697 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:59:38,698 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1681302556] [2021-11-12 22:59:38,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:59:38,698 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:59:38,699 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa5458ba-8cfe-459d-a674-dbb0e8e3dfbd/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:59:38,700 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa5458ba-8cfe-459d-a674-dbb0e8e3dfbd/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:59:38,745 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa5458ba-8cfe-459d-a674-dbb0e8e3dfbd/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-12 22:59:55,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:59:56,021 INFO L263 TraceCheckSpWp]: Trace formula consists of 5254 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-12 22:59:56,033 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:59:57,786 INFO L134 CoverageAnalysis]: Checked inductivity of 4564 backedges. 96 proven. 0 refuted. 0 times theorem prover too weak. 4468 trivial. 0 not checked. [2021-11-12 22:59:57,786 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:59:59,178 INFO L134 CoverageAnalysis]: Checked inductivity of 4564 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4564 trivial. 0 not checked. [2021-11-12 22:59:59,179 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:59:59,179 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1681302556] [2021-11-12 22:59:59,179 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1681302556] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:59:59,179 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:59:59,180 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-12 22:59:59,180 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1618133939] [2021-11-12 22:59:59,180 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:59:59,181 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-12 22:59:59,181 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:59:59,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-12 22:59:59,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-12 22:59:59,182 INFO L87 Difference]: Start difference. First operand 123643 states and 173356 transitions. Second operand has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 3 states have call successors, (55), 3 states have call predecessors, (55), 3 states have return successors, (49), 3 states have call predecessors, (49), 3 states have call successors, (49) [2021-11-12 23:00:01,779 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.59s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 23:00:10,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:00:10,570 INFO L93 Difference]: Finished difference Result 349582 states and 490151 transitions. [2021-11-12 23:00:10,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-12 23:00:10,571 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 3 states have call successors, (55), 3 states have call predecessors, (55), 3 states have return successors, (49), 3 states have call predecessors, (49), 3 states have call successors, (49) Word has length 443 [2021-11-12 23:00:10,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:00:12,062 INFO L225 Difference]: With dead ends: 349582 [2021-11-12 23:00:12,063 INFO L226 Difference]: Without dead ends: 226008 [2021-11-12 23:00:12,835 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 884 GetRequests, 883 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-12 23:00:12,835 INFO L933 BasicCegarLoop]: 7763 mSDtfsCounter, 5877 mSDsluCounter, 6058 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 13 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3039.59ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 5877 SdHoareTripleChecker+Valid, 13821 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 27.16ms SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3150.80ms IncrementalHoareTripleChecker+Time [2021-11-12 23:00:12,836 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5877 Valid, 13821 Invalid, 62 Unknown, 0 Unchecked, 27.16ms Time], IncrementalHoareTripleChecker [13 Valid, 48 Invalid, 1 Unknown, 0 Unchecked, 3150.80ms Time] [2021-11-12 23:00:13,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226008 states.