./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-netconsole.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_9c42df9a-8987-4b67-b5ef-ee8c7ac55a42/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c42df9a-8987-4b67-b5ef-ee8c7ac55a42/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_9c42df9a-8987-4b67-b5ef-ee8c7ac55a42/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c42df9a-8987-4b67-b5ef-ee8c7ac55a42/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-netconsole.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c42df9a-8987-4b67-b5ef-ee8c7ac55a42/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_9c42df9a-8987-4b67-b5ef-ee8c7ac55a42/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 71a59a3596571aa79fb44a527a9b6a33b40c9acdae164ed96a4388ebcdf2e0df --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-13 02:37:49,710 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-13 02:37:49,713 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-13 02:37:49,768 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-13 02:37:49,769 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-13 02:37:49,770 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-13 02:37:49,772 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-13 02:37:49,775 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-13 02:37:49,778 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-13 02:37:49,779 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-13 02:37:49,781 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-13 02:37:49,782 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-13 02:37:49,783 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-13 02:37:49,785 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-13 02:37:49,787 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-13 02:37:49,793 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-13 02:37:49,796 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-13 02:37:49,804 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-13 02:37:49,807 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-13 02:37:49,812 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-13 02:37:49,820 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-13 02:37:49,821 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-13 02:37:49,823 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-13 02:37:49,826 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-13 02:37:49,834 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-13 02:37:49,836 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-13 02:37:49,836 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-13 02:37:49,839 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-13 02:37:49,840 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-13 02:37:49,842 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-13 02:37:49,843 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-13 02:37:49,845 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-13 02:37:49,847 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-13 02:37:49,849 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-13 02:37:49,851 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-13 02:37:49,852 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-13 02:37:49,853 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-13 02:37:49,853 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-13 02:37:49,854 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-13 02:37:49,855 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-13 02:37:49,856 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-13 02:37:49,857 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c42df9a-8987-4b67-b5ef-ee8c7ac55a42/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-13 02:37:49,905 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-13 02:37:49,905 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-13 02:37:49,906 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-13 02:37:49,906 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-13 02:37:49,907 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-13 02:37:49,907 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-13 02:37:49,907 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-13 02:37:49,908 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-13 02:37:49,908 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-13 02:37:49,908 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-13 02:37:49,908 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-13 02:37:49,909 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-13 02:37:49,909 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-13 02:37:49,909 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-13 02:37:49,910 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-13 02:37:49,910 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-13 02:37:49,911 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-13 02:37:49,911 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-13 02:37:49,911 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-13 02:37:49,912 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-13 02:37:49,912 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-13 02:37:49,912 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-13 02:37:49,912 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-13 02:37:49,913 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-13 02:37:49,913 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-13 02:37:49,913 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-13 02:37:49,914 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-13 02:37:49,914 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-13 02:37:49,914 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 02:37:49,914 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-13 02:37:49,915 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-13 02:37:49,915 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-13 02:37:49,915 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-13 02:37:49,915 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-13 02:37:49,916 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-13 02:37:49,916 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-13 02:37:49,916 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-13 02:37:49,917 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_9c42df9a-8987-4b67-b5ef-ee8c7ac55a42/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c42df9a-8987-4b67-b5ef-ee8c7ac55a42/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 71a59a3596571aa79fb44a527a9b6a33b40c9acdae164ed96a4388ebcdf2e0df [2021-11-13 02:37:50,186 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-13 02:37:50,215 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-13 02:37:50,218 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-13 02:37:50,220 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-13 02:37:50,221 INFO L275 PluginConnector]: CDTParser initialized [2021-11-13 02:37:50,223 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c42df9a-8987-4b67-b5ef-ee8c7ac55a42/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-netconsole.cil.i [2021-11-13 02:37:50,306 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c42df9a-8987-4b67-b5ef-ee8c7ac55a42/bin/utaipan-vmNK8stdcF/data/736656ee0/e9f483f8e09f42d79aea14c499d35bf6/FLAG10e30d65c [2021-11-13 02:37:51,410 INFO L306 CDTParser]: Found 1 translation units. [2021-11-13 02:37:51,410 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c42df9a-8987-4b67-b5ef-ee8c7ac55a42/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-netconsole.cil.i [2021-11-13 02:37:51,457 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c42df9a-8987-4b67-b5ef-ee8c7ac55a42/bin/utaipan-vmNK8stdcF/data/736656ee0/e9f483f8e09f42d79aea14c499d35bf6/FLAG10e30d65c [2021-11-13 02:37:51,723 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c42df9a-8987-4b67-b5ef-ee8c7ac55a42/bin/utaipan-vmNK8stdcF/data/736656ee0/e9f483f8e09f42d79aea14c499d35bf6 [2021-11-13 02:37:51,725 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-13 02:37:51,730 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-13 02:37:51,733 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-13 02:37:51,733 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-13 02:37:51,736 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-13 02:37:51,738 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 02:37:51" (1/1) ... [2021-11-13 02:37:51,739 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1a9c0bc4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:37:51, skipping insertion in model container [2021-11-13 02:37:51,739 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 02:37:51" (1/1) ... [2021-11-13 02:37:51,746 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-13 02:37:51,907 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 02:37:53,178 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 02:37:53,350 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 02:37:53,360 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 02:37:53,384 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 02:37:53,387 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 02:37:53,395 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 02:37:53,397 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 02:37:53,407 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 02:37:53,407 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 02:37:53,408 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 02:37:53,414 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 02:37:53,415 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 02:37:53,415 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 02:37:54,192 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_9c42df9a-8987-4b67-b5ef-ee8c7ac55a42/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-netconsole.cil.i[311030,311043] [2021-11-13 02:37:54,194 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_9c42df9a-8987-4b67-b5ef-ee8c7ac55a42/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-netconsole.cil.i[311196,311209] [2021-11-13 02:37:54,195 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_9c42df9a-8987-4b67-b5ef-ee8c7ac55a42/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-netconsole.cil.i[311360,311373] [2021-11-13 02:37:54,196 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_9c42df9a-8987-4b67-b5ef-ee8c7ac55a42/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-netconsole.cil.i[311525,311538] [2021-11-13 02:37:54,205 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 02:37:54,235 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-11-13 02:37:54,236 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@6ec4dd8b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:37:54, skipping insertion in model container [2021-11-13 02:37:54,236 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-13 02:37:54,236 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-13 02:37:54,238 INFO L158 Benchmark]: Toolchain (without parser) took 2506.94ms. Allocated memory was 107.0MB in the beginning and 132.1MB in the end (delta: 25.2MB). Free memory was 64.5MB in the beginning and 69.4MB in the end (delta: -4.9MB). Peak memory consumption was 31.7MB. Max. memory is 16.1GB. [2021-11-13 02:37:54,239 INFO L158 Benchmark]: CDTParser took 0.37ms. Allocated memory is still 107.0MB. Free memory is still 59.8MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-13 02:37:54,240 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2503.44ms. Allocated memory was 107.0MB in the beginning and 132.1MB in the end (delta: 25.2MB). Free memory was 64.2MB in the beginning and 69.4MB in the end (delta: -5.1MB). Peak memory consumption was 31.7MB. Max. memory is 16.1GB. [2021-11-13 02:37:54,241 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37ms. Allocated memory is still 107.0MB. Free memory is still 59.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2503.44ms. Allocated memory was 107.0MB in the beginning and 132.1MB in the end (delta: 25.2MB). Free memory was 64.2MB in the beginning and 69.4MB in the end (delta: -5.1MB). Peak memory consumption was 31.7MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 5469]: 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_9c42df9a-8987-4b67-b5ef-ee8c7ac55a42/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c42df9a-8987-4b67-b5ef-ee8c7ac55a42/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_9c42df9a-8987-4b67-b5ef-ee8c7ac55a42/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c42df9a-8987-4b67-b5ef-ee8c7ac55a42/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-netconsole.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c42df9a-8987-4b67-b5ef-ee8c7ac55a42/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_9c42df9a-8987-4b67-b5ef-ee8c7ac55a42/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 71a59a3596571aa79fb44a527a9b6a33b40c9acdae164ed96a4388ebcdf2e0df --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-13 02:37:56,695 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-13 02:37:56,699 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-13 02:37:56,748 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-13 02:37:56,753 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-13 02:37:56,757 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-13 02:37:56,761 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-13 02:37:56,769 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-13 02:37:56,772 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-13 02:37:56,780 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-13 02:37:56,781 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-13 02:37:56,784 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-13 02:37:56,784 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-13 02:37:56,787 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-13 02:37:56,789 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-13 02:37:56,792 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-13 02:37:56,794 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-13 02:37:56,795 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-13 02:37:56,820 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-13 02:37:56,822 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-13 02:37:56,824 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-13 02:37:56,826 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-13 02:37:56,828 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-13 02:37:56,829 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-13 02:37:56,833 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-13 02:37:56,833 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-13 02:37:56,834 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-13 02:37:56,835 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-13 02:37:56,835 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-13 02:37:56,837 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-13 02:37:56,837 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-13 02:37:56,838 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-13 02:37:56,839 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-13 02:37:56,840 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-13 02:37:56,842 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-13 02:37:56,842 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-13 02:37:56,843 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-13 02:37:56,843 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-13 02:37:56,844 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-13 02:37:56,845 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-13 02:37:56,846 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-13 02:37:56,847 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c42df9a-8987-4b67-b5ef-ee8c7ac55a42/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-13 02:37:56,873 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-13 02:37:56,874 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-13 02:37:56,875 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-13 02:37:56,875 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-13 02:37:56,877 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-13 02:37:56,877 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-13 02:37:56,877 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-13 02:37:56,878 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-13 02:37:56,879 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-13 02:37:56,879 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-13 02:37:56,881 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-13 02:37:56,882 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-13 02:37:56,882 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-13 02:37:56,883 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-13 02:37:56,883 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-13 02:37:56,883 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-13 02:37:56,883 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-13 02:37:56,884 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-13 02:37:56,884 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-13 02:37:56,884 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-13 02:37:56,884 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-13 02:37:56,885 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-13 02:37:56,885 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-13 02:37:56,885 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-13 02:37:56,886 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 02:37:56,886 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-13 02:37:56,886 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-13 02:37:56,887 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-13 02:37:56,887 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-13 02:37:56,887 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-13 02:37:56,887 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-13 02:37:56,887 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-13 02:37:56,888 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-13 02:37:56,888 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_9c42df9a-8987-4b67-b5ef-ee8c7ac55a42/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c42df9a-8987-4b67-b5ef-ee8c7ac55a42/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 71a59a3596571aa79fb44a527a9b6a33b40c9acdae164ed96a4388ebcdf2e0df [2021-11-13 02:37:57,287 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-13 02:37:57,323 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-13 02:37:57,327 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-13 02:37:57,328 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-13 02:37:57,329 INFO L275 PluginConnector]: CDTParser initialized [2021-11-13 02:37:57,331 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c42df9a-8987-4b67-b5ef-ee8c7ac55a42/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-netconsole.cil.i [2021-11-13 02:37:57,412 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c42df9a-8987-4b67-b5ef-ee8c7ac55a42/bin/utaipan-vmNK8stdcF/data/88ae0720c/52aaf3d4698a4e57b8ac4bcc556a623f/FLAGfcc146755 [2021-11-13 02:37:58,431 INFO L306 CDTParser]: Found 1 translation units. [2021-11-13 02:37:58,432 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c42df9a-8987-4b67-b5ef-ee8c7ac55a42/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-netconsole.cil.i [2021-11-13 02:37:58,480 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c42df9a-8987-4b67-b5ef-ee8c7ac55a42/bin/utaipan-vmNK8stdcF/data/88ae0720c/52aaf3d4698a4e57b8ac4bcc556a623f/FLAGfcc146755 [2021-11-13 02:37:58,832 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c42df9a-8987-4b67-b5ef-ee8c7ac55a42/bin/utaipan-vmNK8stdcF/data/88ae0720c/52aaf3d4698a4e57b8ac4bcc556a623f [2021-11-13 02:37:58,835 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-13 02:37:58,836 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-13 02:37:58,838 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-13 02:37:58,838 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-13 02:37:58,843 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-13 02:37:58,844 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 02:37:58" (1/1) ... [2021-11-13 02:37:58,845 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@58a01b42 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:37:58, skipping insertion in model container [2021-11-13 02:37:58,845 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 02:37:58" (1/1) ... [2021-11-13 02:37:58,852 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-13 02:37:59,000 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 02:38:01,237 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_9c42df9a-8987-4b67-b5ef-ee8c7ac55a42/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-netconsole.cil.i[311030,311043] [2021-11-13 02:38:01,240 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_9c42df9a-8987-4b67-b5ef-ee8c7ac55a42/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-netconsole.cil.i[311196,311209] [2021-11-13 02:38:01,247 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_9c42df9a-8987-4b67-b5ef-ee8c7ac55a42/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-netconsole.cil.i[311360,311373] [2021-11-13 02:38:01,248 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_9c42df9a-8987-4b67-b5ef-ee8c7ac55a42/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-netconsole.cil.i[311525,311538] [2021-11-13 02:38:01,259 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 02:38:01,326 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-13 02:38:01,394 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 02:38:01,685 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_9c42df9a-8987-4b67-b5ef-ee8c7ac55a42/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-netconsole.cil.i[311030,311043] [2021-11-13 02:38:01,686 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_9c42df9a-8987-4b67-b5ef-ee8c7ac55a42/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-netconsole.cil.i[311196,311209] [2021-11-13 02:38:01,687 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_9c42df9a-8987-4b67-b5ef-ee8c7ac55a42/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-netconsole.cil.i[311360,311373] [2021-11-13 02:38:01,688 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_9c42df9a-8987-4b67-b5ef-ee8c7ac55a42/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-netconsole.cil.i[311525,311538] [2021-11-13 02:38:01,691 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 02:38:01,727 INFO L203 MainTranslator]: Completed pre-run [2021-11-13 02:38:02,024 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_9c42df9a-8987-4b67-b5ef-ee8c7ac55a42/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-netconsole.cil.i[311030,311043] [2021-11-13 02:38:02,024 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_9c42df9a-8987-4b67-b5ef-ee8c7ac55a42/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-netconsole.cil.i[311196,311209] [2021-11-13 02:38:02,025 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_9c42df9a-8987-4b67-b5ef-ee8c7ac55a42/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-netconsole.cil.i[311360,311373] [2021-11-13 02:38:02,025 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_9c42df9a-8987-4b67-b5ef-ee8c7ac55a42/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-netconsole.cil.i[311525,311538] [2021-11-13 02:38:02,028 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 02:38:02,170 INFO L208 MainTranslator]: Completed translation [2021-11-13 02:38:02,170 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:38:02 WrapperNode [2021-11-13 02:38:02,171 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-13 02:38:02,172 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-13 02:38:02,176 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-13 02:38:02,176 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-13 02:38:02,183 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:38:02" (1/1) ... [2021-11-13 02:38:02,293 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:38:02" (1/1) ... [2021-11-13 02:38:02,493 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-13 02:38:02,494 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-13 02:38:02,495 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-13 02:38:02,495 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-13 02:38:02,504 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:38:02" (1/1) ... [2021-11-13 02:38:02,504 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:38:02" (1/1) ... [2021-11-13 02:38:02,537 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:38:02" (1/1) ... [2021-11-13 02:38:02,538 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:38:02" (1/1) ... [2021-11-13 02:38:02,659 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:38:02" (1/1) ... [2021-11-13 02:38:02,688 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:38:02" (1/1) ... [2021-11-13 02:38:02,726 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:38:02" (1/1) ... [2021-11-13 02:38:02,747 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-13 02:38:02,748 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-13 02:38:02,748 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-13 02:38:02,749 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-13 02:38:02,749 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:38:02" (1/1) ... [2021-11-13 02:38:02,756 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 02:38:02,767 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c42df9a-8987-4b67-b5ef-ee8c7ac55a42/bin/utaipan-vmNK8stdcF/z3 [2021-11-13 02:38:02,780 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c42df9a-8987-4b67-b5ef-ee8c7ac55a42/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-13 02:38:02,799 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c42df9a-8987-4b67-b5ef-ee8c7ac55a42/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-13 02:38:02,833 INFO L130 BoogieDeclarations]: Found specification of procedure show_enabled [2021-11-13 02:38:02,833 INFO L138 BoogieDeclarations]: Found implementation of procedure show_enabled [2021-11-13 02:38:02,833 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_netdevice_notifier [2021-11-13 02:38:02,833 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_netdevice_notifier [2021-11-13 02:38:02,833 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-13 02:38:02,834 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-13 02:38:02,834 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-13 02:38:02,834 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-13 02:38:02,834 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2021-11-13 02:38:02,835 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-13 02:38:02,835 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-13 02:38:02,835 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-13 02:38:02,835 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-13 02:38:02,835 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-13 02:38:02,835 INFO L130 BoogieDeclarations]: Found specification of procedure show_local_mac [2021-11-13 02:38:02,835 INFO L138 BoogieDeclarations]: Found implementation of procedure show_local_mac [2021-11-13 02:38:02,835 INFO L130 BoogieDeclarations]: Found specification of procedure netconsole_target_put [2021-11-13 02:38:02,836 INFO L138 BoogieDeclarations]: Found implementation of procedure netconsole_target_put [2021-11-13 02:38:02,836 INFO L130 BoogieDeclarations]: Found specification of procedure store_remote_ip [2021-11-13 02:38:02,836 INFO L138 BoogieDeclarations]: Found implementation of procedure store_remote_ip [2021-11-13 02:38:02,836 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-13 02:38:02,836 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-13 02:38:02,837 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2021-11-13 02:38:02,837 INFO L130 BoogieDeclarations]: Found specification of procedure show_dev_name [2021-11-13 02:38:02,837 INFO L138 BoogieDeclarations]: Found implementation of procedure show_dev_name [2021-11-13 02:38:02,837 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdevice_notifier [2021-11-13 02:38:02,837 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdevice_notifier [2021-11-13 02:38:02,838 INFO L130 BoogieDeclarations]: Found specification of procedure drop_netconsole_target [2021-11-13 02:38:02,838 INFO L138 BoogieDeclarations]: Found implementation of procedure drop_netconsole_target [2021-11-13 02:38:02,838 INFO L130 BoogieDeclarations]: Found specification of procedure free_param_target [2021-11-13 02:38:02,838 INFO L138 BoogieDeclarations]: Found implementation of procedure free_param_target [2021-11-13 02:38:02,838 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-13 02:38:02,839 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-13 02:38:02,839 INFO L130 BoogieDeclarations]: Found specification of procedure netconsole_target_get [2021-11-13 02:38:02,839 INFO L138 BoogieDeclarations]: Found implementation of procedure netconsole_target_get [2021-11-13 02:38:02,839 INFO L130 BoogieDeclarations]: Found specification of procedure store_remote_mac [2021-11-13 02:38:02,839 INFO L138 BoogieDeclarations]: Found implementation of procedure store_remote_mac [2021-11-13 02:38:02,839 INFO L130 BoogieDeclarations]: Found specification of procedure show_local_ip [2021-11-13 02:38:02,839 INFO L138 BoogieDeclarations]: Found implementation of procedure show_local_ip [2021-11-13 02:38:02,840 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-11-13 02:38:02,840 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-11-13 02:38:02,840 INFO L130 BoogieDeclarations]: Found specification of procedure ERR_PTR [2021-11-13 02:38:02,840 INFO L138 BoogieDeclarations]: Found implementation of procedure ERR_PTR [2021-11-13 02:38:02,841 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_mutex_of_netconsole_target [2021-11-13 02:38:02,842 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_mutex_of_netconsole_target [2021-11-13 02:38:02,842 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-13 02:38:02,842 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-13 02:38:02,842 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-13 02:38:02,842 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-13 02:38:02,842 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2021-11-13 02:38:02,843 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2021-11-13 02:38:02,843 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-13 02:38:02,843 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-13 02:38:02,844 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exit [2021-11-13 02:38:02,844 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exit [2021-11-13 02:38:02,844 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-11-13 02:38:02,844 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-11-13 02:38:02,844 INFO L130 BoogieDeclarations]: Found specification of procedure netconsole_target_release [2021-11-13 02:38:02,844 INFO L138 BoogieDeclarations]: Found implementation of procedure netconsole_target_release [2021-11-13 02:38:02,845 INFO L130 BoogieDeclarations]: Found specification of procedure netconsole_target_attr_show [2021-11-13 02:38:02,885 INFO L138 BoogieDeclarations]: Found implementation of procedure netconsole_target_attr_show [2021-11-13 02:38:02,885 INFO L130 BoogieDeclarations]: Found specification of procedure make_netconsole_target [2021-11-13 02:38:02,885 INFO L138 BoogieDeclarations]: Found implementation of procedure make_netconsole_target [2021-11-13 02:38:02,885 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-13 02:38:02,886 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2021-11-13 02:38:02,886 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-13 02:38:02,886 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-13 02:38:02,886 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-13 02:38:02,886 INFO L130 BoogieDeclarations]: Found specification of procedure netpoll_cleanup [2021-11-13 02:38:02,886 INFO L138 BoogieDeclarations]: Found implementation of procedure netpoll_cleanup [2021-11-13 02:38:02,886 INFO L130 BoogieDeclarations]: Found specification of procedure netpoll_setup [2021-11-13 02:38:02,886 INFO L138 BoogieDeclarations]: Found implementation of procedure netpoll_setup [2021-11-13 02:38:02,886 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2021-11-13 02:38:02,886 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-13 02:38:02,886 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-13 02:38:02,886 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-13 02:38:02,886 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2021-11-13 02:38:02,887 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2021-11-13 02:38:02,887 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2021-11-13 02:38:02,887 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2021-11-13 02:38:02,887 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2021-11-13 02:38:02,887 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2021-11-13 02:38:02,887 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2021-11-13 02:38:02,887 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2021-11-13 02:38:02,887 INFO L130 BoogieDeclarations]: Found specification of procedure store_remote_port [2021-11-13 02:38:02,887 INFO L138 BoogieDeclarations]: Found implementation of procedure store_remote_port [2021-11-13 02:38:02,887 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-13 02:38:02,887 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-13 02:38:02,887 INFO L130 BoogieDeclarations]: Found specification of procedure strnchr [2021-11-13 02:38:02,887 INFO L138 BoogieDeclarations]: Found implementation of procedure strnchr [2021-11-13 02:38:02,887 INFO L130 BoogieDeclarations]: Found specification of procedure kstrtou16 [2021-11-13 02:38:02,887 INFO L138 BoogieDeclarations]: Found implementation of procedure kstrtou16 [2021-11-13 02:38:02,887 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-11-13 02:38:02,888 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-11-13 02:38:02,888 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-13 02:38:02,888 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-13 02:38:02,888 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2021-11-13 02:38:02,888 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2021-11-13 02:38:02,888 INFO L130 BoogieDeclarations]: Found specification of procedure store_enabled [2021-11-13 02:38:02,888 INFO L138 BoogieDeclarations]: Found implementation of procedure store_enabled [2021-11-13 02:38:02,888 INFO L130 BoogieDeclarations]: Found specification of procedure show_remote_ip [2021-11-13 02:38:02,888 INFO L138 BoogieDeclarations]: Found implementation of procedure show_remote_ip [2021-11-13 02:38:02,889 INFO L130 BoogieDeclarations]: Found specification of procedure strnlen [2021-11-13 02:38:02,889 INFO L138 BoogieDeclarations]: Found implementation of procedure strnlen [2021-11-13 02:38:02,889 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_cleanup_netconsole_14_2 [2021-11-13 02:38:02,889 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_cleanup_netconsole_14_2 [2021-11-13 02:38:02,889 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-13 02:38:02,889 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-13 02:38:02,889 INFO L130 BoogieDeclarations]: Found specification of procedure to_target [2021-11-13 02:38:02,889 INFO L138 BoogieDeclarations]: Found implementation of procedure to_target [2021-11-13 02:38:02,889 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2021-11-13 02:38:02,890 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2021-11-13 02:38:02,890 INFO L130 BoogieDeclarations]: Found specification of procedure config_item_put [2021-11-13 02:38:02,890 INFO L138 BoogieDeclarations]: Found implementation of procedure config_item_put [2021-11-13 02:38:02,890 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-11-13 02:38:02,890 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2021-11-13 02:38:02,890 INFO L130 BoogieDeclarations]: Found specification of procedure show_remote_mac [2021-11-13 02:38:02,890 INFO L138 BoogieDeclarations]: Found implementation of procedure show_remote_mac [2021-11-13 02:38:02,890 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2021-11-13 02:38:02,890 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2021-11-13 02:38:02,890 INFO L130 BoogieDeclarations]: Found specification of procedure in6_pton [2021-11-13 02:38:02,891 INFO L138 BoogieDeclarations]: Found implementation of procedure in6_pton [2021-11-13 02:38:02,891 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-13 02:38:02,891 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2021-11-13 02:38:02,891 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2021-11-13 02:38:02,891 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-13 02:38:02,891 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-13 02:38:02,891 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-13 02:38:02,891 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-13 02:38:02,891 INFO L130 BoogieDeclarations]: Found specification of procedure store_local_ip [2021-11-13 02:38:02,892 INFO L138 BoogieDeclarations]: Found implementation of procedure store_local_ip [2021-11-13 02:38:02,892 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2021-11-13 02:38:02,892 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2021-11-13 02:38:02,892 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-11-13 02:38:02,892 INFO L130 BoogieDeclarations]: Found specification of procedure in_aton [2021-11-13 02:38:02,892 INFO L138 BoogieDeclarations]: Found implementation of procedure in_aton [2021-11-13 02:38:02,892 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-13 02:38:02,892 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-13 02:38:02,892 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2021-11-13 02:38:02,892 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2021-11-13 02:38:02,893 INFO L130 BoogieDeclarations]: Found specification of procedure store_dev_name [2021-11-13 02:38:02,893 INFO L138 BoogieDeclarations]: Found implementation of procedure store_dev_name [2021-11-13 02:38:02,893 INFO L130 BoogieDeclarations]: Found specification of procedure show_remote_port [2021-11-13 02:38:02,893 INFO L138 BoogieDeclarations]: Found implementation of procedure show_remote_port [2021-11-13 02:38:02,893 INFO L130 BoogieDeclarations]: Found specification of procedure netconsole_target_attr_store [2021-11-13 02:38:02,893 INFO L138 BoogieDeclarations]: Found implementation of procedure netconsole_target_attr_store [2021-11-13 02:38:02,893 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2021-11-13 02:38:02,893 INFO L130 BoogieDeclarations]: Found specification of procedure store_local_port [2021-11-13 02:38:02,893 INFO L138 BoogieDeclarations]: Found implementation of procedure store_local_port [2021-11-13 02:38:02,893 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-11-13 02:38:02,893 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-11-13 02:38:02,894 INFO L130 BoogieDeclarations]: Found specification of procedure config_item_name [2021-11-13 02:38:02,894 INFO L138 BoogieDeclarations]: Found implementation of procedure config_item_name [2021-11-13 02:38:02,894 INFO L130 BoogieDeclarations]: Found specification of procedure show_local_port [2021-11-13 02:38:02,894 INFO L138 BoogieDeclarations]: Found implementation of procedure show_local_port [2021-11-13 02:38:02,894 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-13 02:38:02,894 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-13 02:38:03,825 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-13 02:38:16,129 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-13 02:38:16,228 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-13 02:38:16,237 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-11-13 02:38:16,242 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 02:38:16 BoogieIcfgContainer [2021-11-13 02:38:16,244 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-13 02:38:16,246 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-13 02:38:16,247 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-13 02:38:16,250 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-13 02:38:16,251 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 02:37:58" (1/3) ... [2021-11-13 02:38:16,251 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41d0e7ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 02:38:16, skipping insertion in model container [2021-11-13 02:38:16,252 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:38:02" (2/3) ... [2021-11-13 02:38:16,252 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41d0e7ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 02:38:16, skipping insertion in model container [2021-11-13 02:38:16,252 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 02:38:16" (3/3) ... [2021-11-13 02:38:16,255 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-netconsole.cil.i [2021-11-13 02:38:16,262 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-13 02:38:16,263 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-11-13 02:38:16,339 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-13 02:38:16,353 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-13 02:38:16,354 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-11-13 02:38:16,424 INFO L276 IsEmpty]: Start isEmpty. Operand has 1379 states, 922 states have (on average 1.262472885032538) internal successors, (1164), 931 states have internal predecessors, (1164), 392 states have call successors, (392), 63 states have call predecessors, (392), 62 states have return successors, (387), 387 states have call predecessors, (387), 387 states have call successors, (387) [2021-11-13 02:38:16,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 843 [2021-11-13 02:38:16,493 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:38:16,494 INFO L514 BasicCegarLoop]: trace histogram [75, 75, 74, 74, 74, 74, 74, 74, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 02:38:16,495 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-13 02:38:16,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:38:16,506 INFO L85 PathProgramCache]: Analyzing trace with hash 1919231487, now seen corresponding path program 1 times [2021-11-13 02:38:16,526 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 02:38:16,526 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1257025627] [2021-11-13 02:38:16,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:38:16,528 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 02:38:16,529 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c42df9a-8987-4b67-b5ef-ee8c7ac55a42/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 02:38:16,532 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c42df9a-8987-4b67-b5ef-ee8c7ac55a42/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 02:38:16,556 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c42df9a-8987-4b67-b5ef-ee8c7ac55a42/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-13 02:38:19,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:38:19,127 INFO L263 TraceCheckSpWp]: Trace formula consists of 2668 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-13 02:38:19,169 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:38:20,932 INFO L134 CoverageAnalysis]: Checked inductivity of 24531 backedges. 222 proven. 0 refuted. 0 times theorem prover too weak. 24309 trivial. 0 not checked. [2021-11-13 02:38:20,932 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:38:22,668 INFO L134 CoverageAnalysis]: Checked inductivity of 24531 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24531 trivial. 0 not checked. [2021-11-13 02:38:22,669 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 02:38:22,670 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1257025627] [2021-11-13 02:38:22,670 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1257025627] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 02:38:22,671 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 02:38:22,671 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-13 02:38:22,673 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1621402931] [2021-11-13 02:38:22,674 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 02:38:22,682 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-13 02:38:22,682 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 02:38:22,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-13 02:38:22,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-13 02:38:22,715 INFO L87 Difference]: Start difference. First operand has 1379 states, 922 states have (on average 1.262472885032538) internal successors, (1164), 931 states have internal predecessors, (1164), 392 states have call successors, (392), 63 states have call predecessors, (392), 62 states have return successors, (387), 387 states have call predecessors, (387), 387 states have call successors, (387) Second operand has 4 states, 4 states have (on average 28.75) internal successors, (115), 4 states have internal predecessors, (115), 4 states have call successors, (81), 3 states have call predecessors, (81), 3 states have return successors, (79), 4 states have call predecessors, (79), 4 states have call successors, (79) [2021-11-13 02:38:24,924 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 [] [2021-11-13 02:38:29,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:38:29,948 INFO L93 Difference]: Finished difference Result 4642 states and 6562 transitions. [2021-11-13 02:38:29,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-13 02:38:29,951 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 28.75) internal successors, (115), 4 states have internal predecessors, (115), 4 states have call successors, (81), 3 states have call predecessors, (81), 3 states have return successors, (79), 4 states have call predecessors, (79), 4 states have call successors, (79) Word has length 842 [2021-11-13 02:38:29,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:38:30,007 INFO L225 Difference]: With dead ends: 4642 [2021-11-13 02:38:30,008 INFO L226 Difference]: Without dead ends: 3401 [2021-11-13 02:38:30,021 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1682 GetRequests, 1680 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-13 02:38:30,024 INFO L933 BasicCegarLoop]: 2447 mSDtfsCounter, 4246 mSDsluCounter, 2455 mSDsCounter, 0 mSdLazyCounter, 761 mSolverCounterSat, 600 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6055.10ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4246 SdHoareTripleChecker+Valid, 4902 SdHoareTripleChecker+Invalid, 1362 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 53.83ms SdHoareTripleChecker+Time, 600 IncrementalHoareTripleChecker+Valid, 761 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6784.59ms IncrementalHoareTripleChecker+Time [2021-11-13 02:38:30,025 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4246 Valid, 4902 Invalid, 1362 Unknown, 0 Unchecked, 53.83ms Time], IncrementalHoareTripleChecker [600 Valid, 761 Invalid, 1 Unknown, 0 Unchecked, 6784.59ms Time] [2021-11-13 02:38:30,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3401 states. [2021-11-13 02:38:30,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3401 to 3383. [2021-11-13 02:38:30,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3383 states, 2294 states have (on average 1.2663469921534438) internal successors, (2905), 2315 states have internal predecessors, (2905), 912 states have call successors, (912), 175 states have call predecessors, (912), 174 states have return successors, (908), 908 states have call predecessors, (908), 908 states have call successors, (908) [2021-11-13 02:38:30,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3383 states to 3383 states and 4725 transitions. [2021-11-13 02:38:30,432 INFO L78 Accepts]: Start accepts. Automaton has 3383 states and 4725 transitions. Word has length 842 [2021-11-13 02:38:30,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 02:38:30,441 INFO L470 AbstractCegarLoop]: Abstraction has 3383 states and 4725 transitions. [2021-11-13 02:38:30,441 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 28.75) internal successors, (115), 4 states have internal predecessors, (115), 4 states have call successors, (81), 3 states have call predecessors, (81), 3 states have return successors, (79), 4 states have call predecessors, (79), 4 states have call successors, (79) [2021-11-13 02:38:30,441 INFO L276 IsEmpty]: Start isEmpty. Operand 3383 states and 4725 transitions. [2021-11-13 02:38:30,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 877 [2021-11-13 02:38:30,487 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:38:30,487 INFO L514 BasicCegarLoop]: trace histogram [75, 75, 74, 74, 74, 74, 74, 74, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 02:38:30,540 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c42df9a-8987-4b67-b5ef-ee8c7ac55a42/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-13 02:38:30,704 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c42df9a-8987-4b67-b5ef-ee8c7ac55a42/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 02:38:30,704 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-13 02:38:30,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:38:30,706 INFO L85 PathProgramCache]: Analyzing trace with hash -1754222456, now seen corresponding path program 1 times [2021-11-13 02:38:30,711 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 02:38:30,712 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1549797806] [2021-11-13 02:38:30,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:38:30,713 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 02:38:30,713 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c42df9a-8987-4b67-b5ef-ee8c7ac55a42/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 02:38:30,718 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c42df9a-8987-4b67-b5ef-ee8c7ac55a42/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 02:38:30,732 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c42df9a-8987-4b67-b5ef-ee8c7ac55a42/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-13 02:38:33,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:38:33,333 INFO L263 TraceCheckSpWp]: Trace formula consists of 2792 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-13 02:38:33,366 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:38:35,070 INFO L134 CoverageAnalysis]: Checked inductivity of 24535 backedges. 222 proven. 0 refuted. 0 times theorem prover too weak. 24313 trivial. 0 not checked. [2021-11-13 02:38:35,071 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:38:36,855 INFO L134 CoverageAnalysis]: Checked inductivity of 24535 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24535 trivial. 0 not checked. [2021-11-13 02:38:36,855 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 02:38:36,855 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1549797806] [2021-11-13 02:38:36,855 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1549797806] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 02:38:36,855 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 02:38:36,856 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-13 02:38:36,856 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [690839915] [2021-11-13 02:38:36,856 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 02:38:36,861 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-13 02:38:36,861 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 02:38:36,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-13 02:38:36,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 02:38:36,862 INFO L87 Difference]: Start difference. First operand 3383 states and 4725 transitions. Second operand has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 3 states have call successors, (90), 3 states have call predecessors, (90), 3 states have return successors, (87), 3 states have call predecessors, (87), 3 states have call successors, (87) [2021-11-13 02:38:39,045 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 02:38:39,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:38:39,565 INFO L93 Difference]: Finished difference Result 8751 states and 12146 transitions. [2021-11-13 02:38:39,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 02:38:39,566 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 3 states have call successors, (90), 3 states have call predecessors, (90), 3 states have return successors, (87), 3 states have call predecessors, (87), 3 states have call successors, (87) Word has length 876 [2021-11-13 02:38:39,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:38:39,621 INFO L225 Difference]: With dead ends: 8751 [2021-11-13 02:38:39,621 INFO L226 Difference]: Without dead ends: 5521 [2021-11-13 02:38:39,642 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1750 GetRequests, 1749 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 02:38:39,643 INFO L933 BasicCegarLoop]: 2183 mSDtfsCounter, 1547 mSDsluCounter, 1836 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2276.28ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1547 SdHoareTripleChecker+Valid, 4019 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 29.16ms SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2326.44ms IncrementalHoareTripleChecker+Time [2021-11-13 02:38:39,644 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1547 Valid, 4019 Invalid, 44 Unknown, 0 Unchecked, 29.16ms Time], IncrementalHoareTripleChecker [7 Valid, 36 Invalid, 1 Unknown, 0 Unchecked, 2326.44ms Time] [2021-11-13 02:38:39,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5521 states. [2021-11-13 02:38:39,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5521 to 5500. [2021-11-13 02:38:39,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5500 states, 3750 states have (on average 1.2656) internal successors, (4746), 3787 states have internal predecessors, (4746), 1435 states have call successors, (1435), 313 states have call predecessors, (1435), 312 states have return successors, (1431), 1426 states have call predecessors, (1431), 1431 states have call successors, (1431) [2021-11-13 02:38:40,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5500 states to 5500 states and 7612 transitions. [2021-11-13 02:38:40,034 INFO L78 Accepts]: Start accepts. Automaton has 5500 states and 7612 transitions. Word has length 876 [2021-11-13 02:38:40,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 02:38:40,038 INFO L470 AbstractCegarLoop]: Abstraction has 5500 states and 7612 transitions. [2021-11-13 02:38:40,038 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 3 states have call successors, (90), 3 states have call predecessors, (90), 3 states have return successors, (87), 3 states have call predecessors, (87), 3 states have call successors, (87) [2021-11-13 02:38:40,038 INFO L276 IsEmpty]: Start isEmpty. Operand 5500 states and 7612 transitions. [2021-11-13 02:38:40,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 881 [2021-11-13 02:38:40,053 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:38:40,054 INFO L514 BasicCegarLoop]: trace histogram [75, 75, 74, 74, 74, 74, 74, 74, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 02:38:40,109 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c42df9a-8987-4b67-b5ef-ee8c7ac55a42/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-13 02:38:40,268 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c42df9a-8987-4b67-b5ef-ee8c7ac55a42/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 02:38:40,268 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-13 02:38:40,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:38:40,269 INFO L85 PathProgramCache]: Analyzing trace with hash 895039550, now seen corresponding path program 1 times [2021-11-13 02:38:40,271 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 02:38:40,272 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [734627499] [2021-11-13 02:38:40,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:38:40,272 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 02:38:40,272 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c42df9a-8987-4b67-b5ef-ee8c7ac55a42/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 02:38:40,274 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c42df9a-8987-4b67-b5ef-ee8c7ac55a42/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 02:38:40,318 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c42df9a-8987-4b67-b5ef-ee8c7ac55a42/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-13 02:38:42,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:38:42,726 INFO L263 TraceCheckSpWp]: Trace formula consists of 2796 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-13 02:38:42,746 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:38:44,196 INFO L134 CoverageAnalysis]: Checked inductivity of 24535 backedges. 222 proven. 0 refuted. 0 times theorem prover too weak. 24313 trivial. 0 not checked. [2021-11-13 02:38:44,196 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:38:45,817 INFO L134 CoverageAnalysis]: Checked inductivity of 24535 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24535 trivial. 0 not checked. [2021-11-13 02:38:45,818 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 02:38:45,818 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [734627499] [2021-11-13 02:38:45,818 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [734627499] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 02:38:45,818 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 02:38:45,819 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-13 02:38:45,819 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1443107350] [2021-11-13 02:38:45,819 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 02:38:45,821 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-13 02:38:45,821 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 02:38:45,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-13 02:38:45,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 02:38:45,822 INFO L87 Difference]: Start difference. First operand 5500 states and 7612 transitions. Second operand has 3 states, 3 states have (on average 47.0) internal successors, (141), 3 states have internal predecessors, (141), 3 states have call successors, (90), 3 states have call predecessors, (90), 3 states have return successors, (87), 3 states have call predecessors, (87), 3 states have call successors, (87) [2021-11-13 02:38:48,000 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 02:38:48,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:38:48,582 INFO L93 Difference]: Finished difference Result 15059 states and 20744 transitions. [2021-11-13 02:38:48,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 02:38:48,583 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.0) internal successors, (141), 3 states have internal predecessors, (141), 3 states have call successors, (90), 3 states have call predecessors, (90), 3 states have return successors, (87), 3 states have call predecessors, (87), 3 states have call successors, (87) Word has length 880 [2021-11-13 02:38:48,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:38:48,668 INFO L225 Difference]: With dead ends: 15059 [2021-11-13 02:38:48,668 INFO L226 Difference]: Without dead ends: 9712 [2021-11-13 02:38:48,703 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1758 GetRequests, 1757 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 02:38:48,706 INFO L933 BasicCegarLoop]: 2215 mSDtfsCounter, 1547 mSDsluCounter, 1840 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2271.64ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1547 SdHoareTripleChecker+Valid, 4055 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 17.12ms SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2322.74ms IncrementalHoareTripleChecker+Time [2021-11-13 02:38:48,710 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1547 Valid, 4055 Invalid, 44 Unknown, 0 Unchecked, 17.12ms Time], IncrementalHoareTripleChecker [7 Valid, 36 Invalid, 1 Unknown, 0 Unchecked, 2322.74ms Time] [2021-11-13 02:38:48,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9712 states. [2021-11-13 02:38:49,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9712 to 9683. [2021-11-13 02:38:49,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9683 states, 6630 states have (on average 1.2647058823529411) internal successors, (8385), 6699 states have internal predecessors, (8385), 2462 states have call successors, (2462), 589 states have call predecessors, (2462), 588 states have return successors, (2458), 2443 states have call predecessors, (2458), 2458 states have call successors, (2458) [2021-11-13 02:38:49,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9683 states to 9683 states and 13305 transitions. [2021-11-13 02:38:49,458 INFO L78 Accepts]: Start accepts. Automaton has 9683 states and 13305 transitions. Word has length 880 [2021-11-13 02:38:49,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 02:38:49,460 INFO L470 AbstractCegarLoop]: Abstraction has 9683 states and 13305 transitions. [2021-11-13 02:38:49,460 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.0) internal successors, (141), 3 states have internal predecessors, (141), 3 states have call successors, (90), 3 states have call predecessors, (90), 3 states have return successors, (87), 3 states have call predecessors, (87), 3 states have call successors, (87) [2021-11-13 02:38:49,461 INFO L276 IsEmpty]: Start isEmpty. Operand 9683 states and 13305 transitions. [2021-11-13 02:38:49,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 879 [2021-11-13 02:38:49,473 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:38:49,474 INFO L514 BasicCegarLoop]: trace histogram [75, 75, 74, 74, 74, 74, 74, 74, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 02:38:49,531 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c42df9a-8987-4b67-b5ef-ee8c7ac55a42/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-13 02:38:49,696 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c42df9a-8987-4b67-b5ef-ee8c7ac55a42/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 02:38:49,696 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-13 02:38:49,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:38:49,697 INFO L85 PathProgramCache]: Analyzing trace with hash 1569509987, now seen corresponding path program 1 times [2021-11-13 02:38:49,699 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 02:38:49,700 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1701963483] [2021-11-13 02:38:49,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:38:49,700 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 02:38:49,700 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c42df9a-8987-4b67-b5ef-ee8c7ac55a42/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 02:38:49,703 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c42df9a-8987-4b67-b5ef-ee8c7ac55a42/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 02:38:49,727 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c42df9a-8987-4b67-b5ef-ee8c7ac55a42/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-13 02:38:52,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:38:52,247 INFO L263 TraceCheckSpWp]: Trace formula consists of 2794 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-13 02:38:52,265 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:38:53,796 INFO L134 CoverageAnalysis]: Checked inductivity of 24535 backedges. 222 proven. 0 refuted. 0 times theorem prover too weak. 24313 trivial. 0 not checked. [2021-11-13 02:38:53,797 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:38:55,529 INFO L134 CoverageAnalysis]: Checked inductivity of 24535 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24535 trivial. 0 not checked. [2021-11-13 02:38:55,530 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 02:38:55,530 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1701963483] [2021-11-13 02:38:55,530 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1701963483] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 02:38:55,530 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 02:38:55,531 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-13 02:38:55,531 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [476851499] [2021-11-13 02:38:55,532 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 02:38:55,533 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-13 02:38:55,534 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 02:38:55,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-13 02:38:55,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 02:38:55,536 INFO L87 Difference]: Start difference. First operand 9683 states and 13305 transitions. Second operand has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 3 states have internal predecessors, (139), 3 states have call successors, (90), 3 states have call predecessors, (90), 3 states have return successors, (87), 3 states have call predecessors, (87), 3 states have call successors, (87) [2021-11-13 02:38:57,670 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 02:38:58,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:38:58,591 INFO L93 Difference]: Finished difference Result 27451 states and 37596 transitions. [2021-11-13 02:38:58,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 02:38:58,593 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 3 states have internal predecessors, (139), 3 states have call successors, (90), 3 states have call predecessors, (90), 3 states have return successors, (87), 3 states have call predecessors, (87), 3 states have call successors, (87) Word has length 878 [2021-11-13 02:38:58,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:38:58,750 INFO L225 Difference]: With dead ends: 27451 [2021-11-13 02:38:58,751 INFO L226 Difference]: Without dead ends: 17921 [2021-11-13 02:38:58,807 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1754 GetRequests, 1753 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 02:38:58,809 INFO L933 BasicCegarLoop]: 2277 mSDtfsCounter, 1547 mSDsluCounter, 1838 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2223.45ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1547 SdHoareTripleChecker+Valid, 4115 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 16.11ms SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2273.45ms IncrementalHoareTripleChecker+Time [2021-11-13 02:38:58,810 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1547 Valid, 4115 Invalid, 44 Unknown, 0 Unchecked, 16.11ms Time], IncrementalHoareTripleChecker [7 Valid, 36 Invalid, 1 Unknown, 0 Unchecked, 2273.45ms Time] [2021-11-13 02:38:58,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17921 states. [2021-11-13 02:38:59,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17921 to 17896. [2021-11-13 02:38:59,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17896 states, 12294 states have (on average 1.2635431918008784) internal successors, (15534), 12427 states have internal predecessors, (15534), 4459 states have call successors, (4459), 1141 states have call predecessors, (4459), 1140 states have return successors, (4455), 4420 states have call predecessors, (4455), 4455 states have call successors, (4455) [2021-11-13 02:39:00,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17896 states to 17896 states and 24448 transitions. [2021-11-13 02:39:00,062 INFO L78 Accepts]: Start accepts. Automaton has 17896 states and 24448 transitions. Word has length 878 [2021-11-13 02:39:00,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 02:39:00,065 INFO L470 AbstractCegarLoop]: Abstraction has 17896 states and 24448 transitions. [2021-11-13 02:39:00,065 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 3 states have internal predecessors, (139), 3 states have call successors, (90), 3 states have call predecessors, (90), 3 states have return successors, (87), 3 states have call predecessors, (87), 3 states have call successors, (87) [2021-11-13 02:39:00,065 INFO L276 IsEmpty]: Start isEmpty. Operand 17896 states and 24448 transitions. [2021-11-13 02:39:00,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 878 [2021-11-13 02:39:00,085 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:39:00,085 INFO L514 BasicCegarLoop]: trace histogram [75, 75, 74, 74, 74, 74, 74, 74, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 02:39:00,146 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c42df9a-8987-4b67-b5ef-ee8c7ac55a42/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-13 02:39:00,312 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c42df9a-8987-4b67-b5ef-ee8c7ac55a42/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 02:39:00,312 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-13 02:39:00,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:39:00,313 INFO L85 PathProgramCache]: Analyzing trace with hash 192711533, now seen corresponding path program 1 times [2021-11-13 02:39:00,315 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 02:39:00,315 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1650407969] [2021-11-13 02:39:00,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:39:00,315 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 02:39:00,315 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c42df9a-8987-4b67-b5ef-ee8c7ac55a42/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 02:39:00,316 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c42df9a-8987-4b67-b5ef-ee8c7ac55a42/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 02:39:00,318 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c42df9a-8987-4b67-b5ef-ee8c7ac55a42/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-13 02:39:02,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:39:02,667 INFO L263 TraceCheckSpWp]: Trace formula consists of 2793 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-13 02:39:02,684 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:39:04,126 INFO L134 CoverageAnalysis]: Checked inductivity of 24535 backedges. 222 proven. 0 refuted. 0 times theorem prover too weak. 24313 trivial. 0 not checked. [2021-11-13 02:39:04,127 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:39:05,689 INFO L134 CoverageAnalysis]: Checked inductivity of 24535 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24535 trivial. 0 not checked. [2021-11-13 02:39:05,689 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 02:39:05,689 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1650407969] [2021-11-13 02:39:05,690 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1650407969] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 02:39:05,690 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 02:39:05,690 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-13 02:39:05,691 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [141373145] [2021-11-13 02:39:05,691 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 02:39:05,692 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-13 02:39:05,693 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 02:39:05,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-13 02:39:05,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 02:39:05,694 INFO L87 Difference]: Start difference. First operand 17896 states and 24448 transitions. Second operand has 3 states, 3 states have (on average 46.0) internal successors, (138), 3 states have internal predecessors, (138), 3 states have call successors, (90), 3 states have call predecessors, (90), 3 states have return successors, (87), 3 states have call predecessors, (87), 3 states have call successors, (87) [2021-11-13 02:39:07,901 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.21s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 02:39:09,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:39:09,431 INFO L93 Difference]: Finished difference Result 51731 states and 70496 transitions. [2021-11-13 02:39:09,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 02:39:09,432 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 46.0) internal successors, (138), 3 states have internal predecessors, (138), 3 states have call successors, (90), 3 states have call predecessors, (90), 3 states have return successors, (87), 3 states have call predecessors, (87), 3 states have call successors, (87) Word has length 877 [2021-11-13 02:39:09,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:39:09,634 INFO L225 Difference]: With dead ends: 51731 [2021-11-13 02:39:09,635 INFO L226 Difference]: Without dead ends: 33988 [2021-11-13 02:39:09,715 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1752 GetRequests, 1751 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 02:39:09,716 INFO L933 BasicCegarLoop]: 2339 mSDtfsCounter, 1547 mSDsluCounter, 1837 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2301.79ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1547 SdHoareTripleChecker+Valid, 4176 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 17.93ms SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2350.57ms IncrementalHoareTripleChecker+Time [2021-11-13 02:39:09,717 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1547 Valid, 4176 Invalid, 44 Unknown, 0 Unchecked, 17.93ms Time], IncrementalHoareTripleChecker [7 Valid, 36 Invalid, 1 Unknown, 0 Unchecked, 2350.57ms Time] [2021-11-13 02:39:09,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33988 states. [2021-11-13 02:39:11,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33988 to 33965. [2021-11-13 02:39:11,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33965 states, 23398 states have (on average 1.2621164202068553) internal successors, (29531), 23659 states have internal predecessors, (29531), 8320 states have call successors, (8320), 2245 states have call predecessors, (8320), 2244 states have return successors, (8316), 8241 states have call predecessors, (8316), 8316 states have call successors, (8316) [2021-11-13 02:39:11,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33965 states to 33965 states and 46167 transitions. [2021-11-13 02:39:11,993 INFO L78 Accepts]: Start accepts. Automaton has 33965 states and 46167 transitions. Word has length 877 [2021-11-13 02:39:11,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 02:39:11,995 INFO L470 AbstractCegarLoop]: Abstraction has 33965 states and 46167 transitions. [2021-11-13 02:39:11,995 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.0) internal successors, (138), 3 states have internal predecessors, (138), 3 states have call successors, (90), 3 states have call predecessors, (90), 3 states have return successors, (87), 3 states have call predecessors, (87), 3 states have call successors, (87) [2021-11-13 02:39:11,999 INFO L276 IsEmpty]: Start isEmpty. Operand 33965 states and 46167 transitions. [2021-11-13 02:39:12,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 876 [2021-11-13 02:39:12,016 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:39:12,017 INFO L514 BasicCegarLoop]: trace histogram [75, 75, 74, 74, 74, 74, 74, 74, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 02:39:12,072 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c42df9a-8987-4b67-b5ef-ee8c7ac55a42/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-13 02:39:12,233 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c42df9a-8987-4b67-b5ef-ee8c7ac55a42/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 02:39:12,234 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-13 02:39:12,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:39:12,234 INFO L85 PathProgramCache]: Analyzing trace with hash 436872050, now seen corresponding path program 1 times [2021-11-13 02:39:12,236 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 02:39:12,237 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1273673584] [2021-11-13 02:39:12,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:39:12,237 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 02:39:12,237 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c42df9a-8987-4b67-b5ef-ee8c7ac55a42/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 02:39:12,238 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c42df9a-8987-4b67-b5ef-ee8c7ac55a42/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 02:39:12,239 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c42df9a-8987-4b67-b5ef-ee8c7ac55a42/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-13 02:39:14,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:39:14,613 INFO L263 TraceCheckSpWp]: Trace formula consists of 2791 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-13 02:39:14,634 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:39:16,081 INFO L134 CoverageAnalysis]: Checked inductivity of 24535 backedges. 222 proven. 0 refuted. 0 times theorem prover too weak. 24313 trivial. 0 not checked. [2021-11-13 02:39:16,082 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:39:17,593 INFO L134 CoverageAnalysis]: Checked inductivity of 24535 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24535 trivial. 0 not checked. [2021-11-13 02:39:17,594 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 02:39:17,594 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1273673584] [2021-11-13 02:39:17,594 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1273673584] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 02:39:17,594 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 02:39:17,595 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-13 02:39:17,595 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [6083221] [2021-11-13 02:39:17,595 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 02:39:17,596 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-13 02:39:17,596 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 02:39:17,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-13 02:39:17,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 02:39:17,596 INFO L87 Difference]: Start difference. First operand 33965 states and 46167 transitions. Second operand has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 3 states have call successors, (90), 3 states have call predecessors, (90), 3 states have return successors, (87), 3 states have call predecessors, (87), 3 states have call successors, (87) [2021-11-13 02:39:19,719 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 02:39:22,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:39:22,654 INFO L93 Difference]: Finished difference Result 99169 states and 134514 transitions. [2021-11-13 02:39:22,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 02:39:22,655 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 3 states have call successors, (90), 3 states have call predecessors, (90), 3 states have return successors, (87), 3 states have call predecessors, (87), 3 states have call successors, (87) Word has length 875 [2021-11-13 02:39:22,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:39:23,138 INFO L225 Difference]: With dead ends: 99169 [2021-11-13 02:39:23,138 INFO L226 Difference]: Without dead ends: 65357 [2021-11-13 02:39:23,443 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1748 GetRequests, 1747 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 02:39:23,444 INFO L933 BasicCegarLoop]: 2308 mSDtfsCounter, 1547 mSDsluCounter, 1835 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2218.03ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1547 SdHoareTripleChecker+Valid, 4143 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 13.53ms SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2270.36ms IncrementalHoareTripleChecker+Time [2021-11-13 02:39:23,445 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1547 Valid, 4143 Invalid, 44 Unknown, 0 Unchecked, 13.53ms Time], IncrementalHoareTripleChecker [7 Valid, 36 Invalid, 1 Unknown, 0 Unchecked, 2270.36ms Time] [2021-11-13 02:39:23,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65357 states. [2021-11-13 02:39:26,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65357 to 65338. [2021-11-13 02:39:26,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65338 states, 45126 states have (on average 1.2604706820901477) internal successors, (56880), 45643 states have internal predecessors, (56880), 15757 states have call successors, (15757), 4453 states have call predecessors, (15757), 4452 states have return successors, (15753), 15598 states have call predecessors, (15753), 15753 states have call successors, (15753) [2021-11-13 02:39:27,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65338 states to 65338 states and 88390 transitions. [2021-11-13 02:39:27,519 INFO L78 Accepts]: Start accepts. Automaton has 65338 states and 88390 transitions. Word has length 875 [2021-11-13 02:39:27,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 02:39:27,521 INFO L470 AbstractCegarLoop]: Abstraction has 65338 states and 88390 transitions. [2021-11-13 02:39:27,522 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 3 states have call successors, (90), 3 states have call predecessors, (90), 3 states have return successors, (87), 3 states have call predecessors, (87), 3 states have call successors, (87) [2021-11-13 02:39:27,522 INFO L276 IsEmpty]: Start isEmpty. Operand 65338 states and 88390 transitions. [2021-11-13 02:39:27,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 880 [2021-11-13 02:39:27,541 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:39:27,542 INFO L514 BasicCegarLoop]: trace histogram [75, 75, 74, 74, 74, 74, 74, 74, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 02:39:27,607 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c42df9a-8987-4b67-b5ef-ee8c7ac55a42/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-13 02:39:27,766 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c42df9a-8987-4b67-b5ef-ee8c7ac55a42/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 02:39:27,767 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-13 02:39:27,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:39:27,768 INFO L85 PathProgramCache]: Analyzing trace with hash -1842991256, now seen corresponding path program 1 times [2021-11-13 02:39:27,770 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 02:39:27,771 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [398312257] [2021-11-13 02:39:27,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:39:27,771 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 02:39:27,771 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c42df9a-8987-4b67-b5ef-ee8c7ac55a42/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 02:39:27,772 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c42df9a-8987-4b67-b5ef-ee8c7ac55a42/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 02:39:27,812 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c42df9a-8987-4b67-b5ef-ee8c7ac55a42/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-13 02:39:30,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:39:30,281 INFO L263 TraceCheckSpWp]: Trace formula consists of 2795 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-13 02:39:30,302 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:39:31,770 INFO L134 CoverageAnalysis]: Checked inductivity of 24535 backedges. 222 proven. 0 refuted. 0 times theorem prover too weak. 24313 trivial. 0 not checked. [2021-11-13 02:39:31,770 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:39:33,401 INFO L134 CoverageAnalysis]: Checked inductivity of 24535 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24535 trivial. 0 not checked. [2021-11-13 02:39:33,401 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 02:39:33,401 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [398312257] [2021-11-13 02:39:33,401 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [398312257] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 02:39:33,401 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 02:39:33,402 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-13 02:39:33,402 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1981911487] [2021-11-13 02:39:33,402 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 02:39:33,403 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-13 02:39:33,403 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 02:39:33,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-13 02:39:33,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 02:39:33,404 INFO L87 Difference]: Start difference. First operand 65338 states and 88390 transitions. Second operand has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 3 states have call successors, (90), 3 states have call predecessors, (90), 3 states have return successors, (87), 3 states have call predecessors, (87), 3 states have call successors, (87) [2021-11-13 02:39:35,537 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 02:39:40,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:39:40,124 INFO L93 Difference]: Finished difference Result 191715 states and 258840 transitions. [2021-11-13 02:39:40,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 02:39:40,125 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 3 states have call successors, (90), 3 states have call predecessors, (90), 3 states have return successors, (87), 3 states have call predecessors, (87), 3 states have call successors, (87) Word has length 879 [2021-11-13 02:39:40,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:39:40,819 INFO L225 Difference]: With dead ends: 191715 [2021-11-13 02:39:40,819 INFO L226 Difference]: Without dead ends: 126530 [2021-11-13 02:39:41,377 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1756 GetRequests, 1755 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 02:39:41,378 INFO L933 BasicCegarLoop]: 2492 mSDtfsCounter, 1547 mSDsluCounter, 1839 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2221.57ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1547 SdHoareTripleChecker+Valid, 4331 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 13.17ms SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2274.09ms IncrementalHoareTripleChecker+Time [2021-11-13 02:39:41,378 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1547 Valid, 4331 Invalid, 44 Unknown, 0 Unchecked, 13.17ms Time], IncrementalHoareTripleChecker [7 Valid, 36 Invalid, 1 Unknown, 0 Unchecked, 2274.09ms Time] [2021-11-13 02:39:41,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126530 states. [2021-11-13 02:39:47,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126530 to 126503. [2021-11-13 02:39:47,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 126503 states, 87590 states have (on average 1.25864824751684) internal successors, (110245), 88619 states have internal predecessors, (110245), 30042 states have call successors, (30042), 8869 states have call predecessors, (30042), 8868 states have return successors, (30038), 29723 states have call predecessors, (30038), 30038 states have call successors, (30038) [2021-11-13 02:39:48,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126503 states to 126503 states and 170325 transitions. [2021-11-13 02:39:48,210 INFO L78 Accepts]: Start accepts. Automaton has 126503 states and 170325 transitions. Word has length 879 [2021-11-13 02:39:48,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 02:39:48,211 INFO L470 AbstractCegarLoop]: Abstraction has 126503 states and 170325 transitions. [2021-11-13 02:39:48,212 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 3 states have call successors, (90), 3 states have call predecessors, (90), 3 states have return successors, (87), 3 states have call predecessors, (87), 3 states have call successors, (87) [2021-11-13 02:39:48,212 INFO L276 IsEmpty]: Start isEmpty. Operand 126503 states and 170325 transitions. [2021-11-13 02:39:48,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 883 [2021-11-13 02:39:48,224 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:39:48,224 INFO L514 BasicCegarLoop]: trace histogram [75, 75, 74, 74, 74, 74, 74, 74, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 02:39:48,300 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c42df9a-8987-4b67-b5ef-ee8c7ac55a42/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-13 02:39:48,444 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c42df9a-8987-4b67-b5ef-ee8c7ac55a42/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 02:39:48,444 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-13 02:39:48,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:39:48,445 INFO L85 PathProgramCache]: Analyzing trace with hash 1943331353, now seen corresponding path program 1 times [2021-11-13 02:39:48,447 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 02:39:48,447 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1624379551] [2021-11-13 02:39:48,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:39:48,448 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 02:39:48,448 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c42df9a-8987-4b67-b5ef-ee8c7ac55a42/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 02:39:48,450 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c42df9a-8987-4b67-b5ef-ee8c7ac55a42/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 02:39:48,490 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c42df9a-8987-4b67-b5ef-ee8c7ac55a42/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-13 02:39:50,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:39:50,777 INFO L263 TraceCheckSpWp]: Trace formula consists of 2798 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-13 02:39:50,787 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:39:52,149 INFO L134 CoverageAnalysis]: Checked inductivity of 24535 backedges. 222 proven. 0 refuted. 0 times theorem prover too weak. 24313 trivial. 0 not checked. [2021-11-13 02:39:52,150 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:39:53,776 INFO L134 CoverageAnalysis]: Checked inductivity of 24535 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24535 trivial. 0 not checked. [2021-11-13 02:39:53,776 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 02:39:53,776 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1624379551] [2021-11-13 02:39:53,776 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1624379551] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 02:39:53,777 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 02:39:53,777 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-13 02:39:53,777 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [865419252] [2021-11-13 02:39:53,778 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 02:39:53,780 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-13 02:39:53,780 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 02:39:53,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-13 02:39:53,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 02:39:53,781 INFO L87 Difference]: Start difference. First operand 126503 states and 170325 transitions. Second operand has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 3 states have call successors, (90), 3 states have call predecessors, (90), 3 states have return successors, (87), 3 states have call predecessors, (87), 3 states have call successors, (87) [2021-11-13 02:39:55,985 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.20s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 02:40:04,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:40:04,413 INFO L93 Difference]: Finished difference Result 372003 states and 499868 transitions. [2021-11-13 02:40:04,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 02:40:04,414 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 3 states have call successors, (90), 3 states have call predecessors, (90), 3 states have return successors, (87), 3 states have call predecessors, (87), 3 states have call successors, (87) Word has length 882 [2021-11-13 02:40:04,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:40:05,830 INFO L225 Difference]: With dead ends: 372003 [2021-11-13 02:40:05,830 INFO L226 Difference]: Without dead ends: 245653 [2021-11-13 02:40:06,188 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1762 GetRequests, 1761 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 02:40:06,189 INFO L933 BasicCegarLoop]: 2555 mSDtfsCounter, 1547 mSDsluCounter, 1842 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2284.77ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1547 SdHoareTripleChecker+Valid, 4397 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 9.48ms SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2330.75ms IncrementalHoareTripleChecker+Time [2021-11-13 02:40:06,189 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1547 Valid, 4397 Invalid, 44 Unknown, 0 Unchecked, 9.48ms Time], IncrementalHoareTripleChecker [7 Valid, 36 Invalid, 1 Unknown, 0 Unchecked, 2330.75ms Time] [2021-11-13 02:40:06,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 245653 states.