./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-irda-via-ircc.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0f8a17c6 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b07bc3d-7094-4daf-95c2-d87e34f419d7/bin/utaipan-UbGMyvGFUs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b07bc3d-7094-4daf-95c2-d87e34f419d7/bin/utaipan-UbGMyvGFUs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b07bc3d-7094-4daf-95c2-d87e34f419d7/bin/utaipan-UbGMyvGFUs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b07bc3d-7094-4daf-95c2-d87e34f419d7/bin/utaipan-UbGMyvGFUs/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-irda-via-ircc.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b07bc3d-7094-4daf-95c2-d87e34f419d7/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b07bc3d-7094-4daf-95c2-d87e34f419d7/bin/utaipan-UbGMyvGFUs --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 67e7778ced54570c612880d3f2f5d48e6e2d3dc55afd632628e45d31cdc74c58 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 13:37:20,199 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 13:37:20,203 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 13:37:20,262 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 13:37:20,263 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 13:37:20,264 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 13:37:20,266 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 13:37:20,269 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 13:37:20,272 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 13:37:20,273 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 13:37:20,275 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 13:37:20,277 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 13:37:20,278 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 13:37:20,279 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 13:37:20,282 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 13:37:20,284 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 13:37:20,285 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 13:37:20,287 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 13:37:20,289 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 13:37:20,292 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 13:37:20,295 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 13:37:20,297 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 13:37:20,298 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 13:37:20,300 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 13:37:20,304 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 13:37:20,305 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 13:37:20,305 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 13:37:20,307 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 13:37:20,307 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 13:37:20,309 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 13:37:20,309 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 13:37:20,311 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 13:37:20,312 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 13:37:20,313 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 13:37:20,315 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 13:37:20,315 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 13:37:20,316 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 13:37:20,317 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 13:37:20,317 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 13:37:20,319 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 13:37:20,320 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 13:37:20,321 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b07bc3d-7094-4daf-95c2-d87e34f419d7/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-19 13:37:20,348 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 13:37:20,348 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 13:37:20,349 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 13:37:20,349 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 13:37:20,350 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-19 13:37:20,350 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-19 13:37:20,350 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-19 13:37:20,351 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-19 13:37:20,351 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-19 13:37:20,351 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-19 13:37:20,351 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-19 13:37:20,352 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-19 13:37:20,352 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-19 13:37:20,352 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-19 13:37:20,353 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-19 13:37:20,353 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-19 13:37:20,354 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 13:37:20,354 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-19 13:37:20,354 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 13:37:20,355 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-19 13:37:20,355 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 13:37:20,355 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-19 13:37:20,356 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-19 13:37:20,356 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 13:37:20,356 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 13:37:20,356 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-19 13:37:20,357 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 13:37:20,357 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 13:37:20,357 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 13:37:20,358 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 13:37:20,358 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 13:37:20,358 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-19 13:37:20,358 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-19 13:37:20,359 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-19 13:37:20,359 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-19 13:37:20,359 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 13:37:20,360 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-19 13:37:20,360 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_7b07bc3d-7094-4daf-95c2-d87e34f419d7/bin/utaipan-UbGMyvGFUs/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b07bc3d-7094-4daf-95c2-d87e34f419d7/bin/utaipan-UbGMyvGFUs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 67e7778ced54570c612880d3f2f5d48e6e2d3dc55afd632628e45d31cdc74c58 [2021-11-19 13:37:20,707 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 13:37:20,734 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 13:37:20,737 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 13:37:20,739 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 13:37:20,739 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 13:37:20,741 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b07bc3d-7094-4daf-95c2-d87e34f419d7/bin/utaipan-UbGMyvGFUs/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-irda-via-ircc.cil.i [2021-11-19 13:37:20,817 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b07bc3d-7094-4daf-95c2-d87e34f419d7/bin/utaipan-UbGMyvGFUs/data/8e6f629ae/b12c1550f44740118c29f8510e28f76c/FLAGa7e754cf0 [2021-11-19 13:37:21,774 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 13:37:21,775 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b07bc3d-7094-4daf-95c2-d87e34f419d7/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-irda-via-ircc.cil.i [2021-11-19 13:37:21,833 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b07bc3d-7094-4daf-95c2-d87e34f419d7/bin/utaipan-UbGMyvGFUs/data/8e6f629ae/b12c1550f44740118c29f8510e28f76c/FLAGa7e754cf0 [2021-11-19 13:37:22,168 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b07bc3d-7094-4daf-95c2-d87e34f419d7/bin/utaipan-UbGMyvGFUs/data/8e6f629ae/b12c1550f44740118c29f8510e28f76c [2021-11-19 13:37:22,171 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 13:37:22,173 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 13:37:22,175 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 13:37:22,175 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 13:37:22,178 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 13:37:22,179 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 01:37:22" (1/1) ... [2021-11-19 13:37:22,181 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e27cf89 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:37:22, skipping insertion in model container [2021-11-19 13:37:22,181 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 01:37:22" (1/1) ... [2021-11-19 13:37:22,189 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 13:37:22,378 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 13:37:25,615 WARN L230 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_7b07bc3d-7094-4daf-95c2-d87e34f419d7/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-irda-via-ircc.cil.i[329615,329628] [2021-11-19 13:37:25,619 WARN L230 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_7b07bc3d-7094-4daf-95c2-d87e34f419d7/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-irda-via-ircc.cil.i[329784,329797] [2021-11-19 13:37:25,625 WARN L230 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_7b07bc3d-7094-4daf-95c2-d87e34f419d7/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-irda-via-ircc.cil.i[329951,329964] [2021-11-19 13:37:25,625 WARN L230 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_7b07bc3d-7094-4daf-95c2-d87e34f419d7/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-irda-via-ircc.cil.i[330119,330132] [2021-11-19 13:37:25,641 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 13:37:25,676 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) [2021-11-19 13:37:25,677 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@3883e0d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:37:25, skipping insertion in model container [2021-11-19 13:37:25,677 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 13:37:25,678 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-19 13:37:25,680 INFO L158 Benchmark]: Toolchain (without parser) took 3505.64ms. Allocated memory was 107.0MB in the beginning and 130.0MB in the end (delta: 23.1MB). Free memory was 71.2MB in the beginning and 68.8MB in the end (delta: 2.4MB). Peak memory consumption was 52.5MB. Max. memory is 16.1GB. [2021-11-19 13:37:25,681 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 107.0MB. Free memory is still 81.0MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 13:37:25,682 INFO L158 Benchmark]: CACSL2BoogieTranslator took 3502.76ms. Allocated memory was 107.0MB in the beginning and 130.0MB in the end (delta: 23.1MB). Free memory was 71.0MB in the beginning and 68.8MB in the end (delta: 2.2MB). Peak memory consumption was 52.5MB. Max. memory is 16.1GB. [2021-11-19 13:37:25,684 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 107.0MB. Free memory is still 81.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 3502.76ms. Allocated memory was 107.0MB in the beginning and 130.0MB in the end (delta: 23.1MB). Free memory was 71.0MB in the beginning and 68.8MB in the end (delta: 2.2MB). Peak memory consumption was 52.5MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 7589]: 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_7b07bc3d-7094-4daf-95c2-d87e34f419d7/bin/utaipan-UbGMyvGFUs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b07bc3d-7094-4daf-95c2-d87e34f419d7/bin/utaipan-UbGMyvGFUs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b07bc3d-7094-4daf-95c2-d87e34f419d7/bin/utaipan-UbGMyvGFUs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b07bc3d-7094-4daf-95c2-d87e34f419d7/bin/utaipan-UbGMyvGFUs/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-irda-via-ircc.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b07bc3d-7094-4daf-95c2-d87e34f419d7/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b07bc3d-7094-4daf-95c2-d87e34f419d7/bin/utaipan-UbGMyvGFUs --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 67e7778ced54570c612880d3f2f5d48e6e2d3dc55afd632628e45d31cdc74c58 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 13:37:28,388 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 13:37:28,391 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 13:37:28,448 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 13:37:28,449 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 13:37:28,456 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 13:37:28,458 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 13:37:28,464 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 13:37:28,468 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 13:37:28,479 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 13:37:28,481 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 13:37:28,483 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 13:37:28,484 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 13:37:28,488 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 13:37:28,491 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 13:37:28,497 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 13:37:28,499 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 13:37:28,512 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 13:37:28,515 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 13:37:28,525 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 13:37:28,527 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 13:37:28,530 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 13:37:28,535 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 13:37:28,537 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 13:37:28,549 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 13:37:28,550 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 13:37:28,550 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 13:37:28,553 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 13:37:28,553 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 13:37:28,555 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 13:37:28,555 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 13:37:28,556 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 13:37:28,559 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 13:37:28,560 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 13:37:28,562 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 13:37:28,562 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 13:37:28,563 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 13:37:28,563 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 13:37:28,564 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 13:37:28,566 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 13:37:28,567 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 13:37:28,573 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b07bc3d-7094-4daf-95c2-d87e34f419d7/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-19 13:37:28,630 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 13:37:28,630 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 13:37:28,632 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 13:37:28,632 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 13:37:28,633 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-19 13:37:28,633 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-19 13:37:28,633 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-19 13:37:28,633 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-19 13:37:28,634 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-19 13:37:28,634 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-19 13:37:28,637 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 13:37:28,637 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 13:37:28,637 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-19 13:37:28,638 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 13:37:28,638 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-19 13:37:28,638 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-19 13:37:28,638 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-19 13:37:28,638 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-19 13:37:28,639 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 13:37:28,639 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 13:37:28,639 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-19 13:37:28,639 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 13:37:28,640 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-19 13:37:28,640 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 13:37:28,640 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 13:37:28,640 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 13:37:28,641 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 13:37:28,641 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-19 13:37:28,641 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-19 13:37:28,641 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-19 13:37:28,642 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-19 13:37:28,642 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 13:37:28,642 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-19 13:37:28,642 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_7b07bc3d-7094-4daf-95c2-d87e34f419d7/bin/utaipan-UbGMyvGFUs/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b07bc3d-7094-4daf-95c2-d87e34f419d7/bin/utaipan-UbGMyvGFUs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 67e7778ced54570c612880d3f2f5d48e6e2d3dc55afd632628e45d31cdc74c58 [2021-11-19 13:37:29,066 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 13:37:29,100 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 13:37:29,104 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 13:37:29,105 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 13:37:29,106 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 13:37:29,108 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b07bc3d-7094-4daf-95c2-d87e34f419d7/bin/utaipan-UbGMyvGFUs/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-irda-via-ircc.cil.i [2021-11-19 13:37:29,194 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b07bc3d-7094-4daf-95c2-d87e34f419d7/bin/utaipan-UbGMyvGFUs/data/30ae1cd1c/908ad0f1dbd04e1c99d22588abfebfe5/FLAG4a4c21a36 [2021-11-19 13:37:30,347 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 13:37:30,348 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b07bc3d-7094-4daf-95c2-d87e34f419d7/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-irda-via-ircc.cil.i [2021-11-19 13:37:30,452 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b07bc3d-7094-4daf-95c2-d87e34f419d7/bin/utaipan-UbGMyvGFUs/data/30ae1cd1c/908ad0f1dbd04e1c99d22588abfebfe5/FLAG4a4c21a36 [2021-11-19 13:37:30,600 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b07bc3d-7094-4daf-95c2-d87e34f419d7/bin/utaipan-UbGMyvGFUs/data/30ae1cd1c/908ad0f1dbd04e1c99d22588abfebfe5 [2021-11-19 13:37:30,605 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 13:37:30,608 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 13:37:30,612 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 13:37:30,612 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 13:37:30,617 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 13:37:30,618 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 01:37:30" (1/1) ... [2021-11-19 13:37:30,621 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2acdc792 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:37:30, skipping insertion in model container [2021-11-19 13:37:30,621 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 01:37:30" (1/1) ... [2021-11-19 13:37:30,630 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 13:37:30,855 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 13:37:33,962 WARN L230 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_7b07bc3d-7094-4daf-95c2-d87e34f419d7/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-irda-via-ircc.cil.i[329615,329628] [2021-11-19 13:37:33,966 WARN L230 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_7b07bc3d-7094-4daf-95c2-d87e34f419d7/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-irda-via-ircc.cil.i[329784,329797] [2021-11-19 13:37:33,966 WARN L230 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_7b07bc3d-7094-4daf-95c2-d87e34f419d7/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-irda-via-ircc.cil.i[329951,329964] [2021-11-19 13:37:33,967 WARN L230 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_7b07bc3d-7094-4daf-95c2-d87e34f419d7/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-irda-via-ircc.cil.i[330119,330132] [2021-11-19 13:37:33,984 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 13:37:34,033 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-19 13:37:34,105 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 13:37:34,589 WARN L230 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_7b07bc3d-7094-4daf-95c2-d87e34f419d7/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-irda-via-ircc.cil.i[329615,329628] [2021-11-19 13:37:34,589 WARN L230 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_7b07bc3d-7094-4daf-95c2-d87e34f419d7/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-irda-via-ircc.cil.i[329784,329797] [2021-11-19 13:37:34,590 WARN L230 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_7b07bc3d-7094-4daf-95c2-d87e34f419d7/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-irda-via-ircc.cil.i[329951,329964] [2021-11-19 13:37:34,592 WARN L230 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_7b07bc3d-7094-4daf-95c2-d87e34f419d7/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-irda-via-ircc.cil.i[330119,330132] [2021-11-19 13:37:34,598 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 13:37:34,643 INFO L203 MainTranslator]: Completed pre-run [2021-11-19 13:37:35,216 WARN L230 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_7b07bc3d-7094-4daf-95c2-d87e34f419d7/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-irda-via-ircc.cil.i[329615,329628] [2021-11-19 13:37:35,217 WARN L230 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_7b07bc3d-7094-4daf-95c2-d87e34f419d7/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-irda-via-ircc.cil.i[329784,329797] [2021-11-19 13:37:35,218 WARN L230 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_7b07bc3d-7094-4daf-95c2-d87e34f419d7/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-irda-via-ircc.cil.i[329951,329964] [2021-11-19 13:37:35,219 WARN L230 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_7b07bc3d-7094-4daf-95c2-d87e34f419d7/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-irda-via-ircc.cil.i[330119,330132] [2021-11-19 13:37:35,231 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 13:37:35,436 INFO L208 MainTranslator]: Completed translation [2021-11-19 13:37:35,437 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:37:35 WrapperNode [2021-11-19 13:37:35,437 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 13:37:35,439 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-19 13:37:35,439 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-19 13:37:35,440 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-19 13:37:35,447 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:37:35" (1/1) ... [2021-11-19 13:37:35,575 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:37:35" (1/1) ... [2021-11-19 13:37:35,794 INFO L137 Inliner]: procedures = 409, calls = 2038, calls flagged for inlining = 159, calls inlined = 138, statements flattened = 4069 [2021-11-19 13:37:35,794 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-19 13:37:35,796 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-19 13:37:35,797 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-19 13:37:35,797 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-19 13:37:35,806 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:37:35" (1/1) ... [2021-11-19 13:37:35,809 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:37:35" (1/1) ... [2021-11-19 13:37:35,853 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:37:35" (1/1) ... [2021-11-19 13:37:35,853 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:37:35" (1/1) ... [2021-11-19 13:37:36,006 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:37:35" (1/1) ... [2021-11-19 13:37:36,053 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:37:35" (1/1) ... [2021-11-19 13:37:36,088 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:37:35" (1/1) ... [2021-11-19 13:37:36,129 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-19 13:37:36,131 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-19 13:37:36,131 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-19 13:37:36,131 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-19 13:37:36,132 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:37:35" (1/1) ... [2021-11-19 13:37:36,142 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 13:37:36,156 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b07bc3d-7094-4daf-95c2-d87e34f419d7/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 13:37:36,171 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b07bc3d-7094-4daf-95c2-d87e34f419d7/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-19 13:37:36,174 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b07bc3d-7094-4daf-95c2-d87e34f419d7/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-19 13:37:36,213 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-19 13:37:36,213 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-19 13:37:36,213 INFO L130 BoogieDeclarations]: Found specification of procedure RxCurCount [2021-11-19 13:37:36,213 INFO L138 BoogieDeclarations]: Found implementation of procedure RxCurCount [2021-11-19 13:37:36,213 INFO L130 BoogieDeclarations]: Found specification of procedure irda_setup_dma [2021-11-19 13:37:36,213 INFO L138 BoogieDeclarations]: Found implementation of procedure irda_setup_dma [2021-11-19 13:37:36,213 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-11-19 13:37:36,214 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-11-19 13:37:36,214 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-19 13:37:36,214 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-19 13:37:36,214 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_73 [2021-11-19 13:37:36,214 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_73 [2021-11-19 13:37:36,214 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2021-11-19 13:37:36,214 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2021-11-19 13:37:36,215 INFO L130 BoogieDeclarations]: Found specification of procedure CheckRegBit [2021-11-19 13:37:36,215 INFO L138 BoogieDeclarations]: Found implementation of procedure CheckRegBit [2021-11-19 13:37:36,215 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-11-19 13:37:36,215 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-11-19 13:37:36,215 INFO L130 BoogieDeclarations]: Found specification of procedure via_remove_one [2021-11-19 13:37:36,215 INFO L138 BoogieDeclarations]: Found implementation of procedure via_remove_one [2021-11-19 13:37:36,215 INFO L130 BoogieDeclarations]: Found specification of procedure via_ircc_change_speed [2021-11-19 13:37:36,215 INFO L138 BoogieDeclarations]: Found implementation of procedure via_ircc_change_speed [2021-11-19 13:37:36,216 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~C_INT~structend~~TO~C_INT [2021-11-19 13:37:36,216 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~C_INT~structend~~TO~C_INT [2021-11-19 13:37:36,216 INFO L130 BoogieDeclarations]: Found specification of procedure dma_zalloc_coherent [2021-11-19 13:37:36,216 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_zalloc_coherent [2021-11-19 13:37:36,216 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-19 13:37:36,216 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-19 13:37:36,216 INFO L130 BoogieDeclarations]: Found specification of procedure SetPulseWidth [2021-11-19 13:37:36,216 INFO L138 BoogieDeclarations]: Found implementation of procedure SetPulseWidth [2021-11-19 13:37:36,217 INFO L130 BoogieDeclarations]: Found specification of procedure Tdelay [2021-11-19 13:37:36,217 INFO L138 BoogieDeclarations]: Found implementation of procedure Tdelay [2021-11-19 13:37:36,217 INFO L130 BoogieDeclarations]: Found specification of procedure netif_rx [2021-11-19 13:37:36,217 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_rx [2021-11-19 13:37:36,217 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-19 13:37:36,217 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-19 13:37:36,217 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-19 13:37:36,217 INFO L130 BoogieDeclarations]: Found specification of procedure ClkTx [2021-11-19 13:37:36,218 INFO L138 BoogieDeclarations]: Found implementation of procedure ClkTx [2021-11-19 13:37:36,218 INFO L130 BoogieDeclarations]: Found specification of procedure WriteLPCReg [2021-11-19 13:37:36,218 INFO L138 BoogieDeclarations]: Found implementation of procedure WriteLPCReg [2021-11-19 13:37:36,218 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-19 13:37:36,218 INFO L130 BoogieDeclarations]: Found specification of procedure capable [2021-11-19 13:37:36,218 INFO L138 BoogieDeclarations]: Found implementation of procedure capable [2021-11-19 13:37:36,218 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-19 13:37:36,218 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-19 13:37:36,219 INFO L130 BoogieDeclarations]: Found specification of procedure CommonInit [2021-11-19 13:37:36,219 INFO L138 BoogieDeclarations]: Found implementation of procedure CommonInit [2021-11-19 13:37:36,219 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-11-19 13:37:36,219 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-11-19 13:37:36,219 INFO L130 BoogieDeclarations]: Found specification of procedure via_ircc_change_dongle_speed [2021-11-19 13:37:36,219 INFO L138 BoogieDeclarations]: Found implementation of procedure via_ircc_change_dongle_speed [2021-11-19 13:37:36,219 INFO L130 BoogieDeclarations]: Found specification of procedure ReadLPCReg [2021-11-19 13:37:36,220 INFO L138 BoogieDeclarations]: Found implementation of procedure ReadLPCReg [2021-11-19 13:37:36,220 INFO L130 BoogieDeclarations]: Found specification of procedure free_dma [2021-11-19 13:37:36,220 INFO L138 BoogieDeclarations]: Found implementation of procedure free_dma [2021-11-19 13:37:36,220 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_via_ircc_cb [2021-11-19 13:37:36,220 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_via_ircc_cb [2021-11-19 13:37:36,220 INFO L130 BoogieDeclarations]: Found specification of procedure via_ircc_dma_receive [2021-11-19 13:37:36,220 INFO L138 BoogieDeclarations]: Found implementation of procedure via_ircc_dma_receive [2021-11-19 13:37:36,220 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-11-19 13:37:36,220 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-11-19 13:37:36,221 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-19 13:37:36,221 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-19 13:37:36,221 INFO L130 BoogieDeclarations]: Found specification of procedure via_ircc_net_close [2021-11-19 13:37:36,221 INFO L138 BoogieDeclarations]: Found implementation of procedure via_ircc_net_close [2021-11-19 13:37:36,221 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-19 13:37:36,221 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-19 13:37:36,221 INFO L130 BoogieDeclarations]: Found specification of procedure CkRxRecv [2021-11-19 13:37:36,222 INFO L138 BoogieDeclarations]: Found implementation of procedure CkRxRecv [2021-11-19 13:37:36,222 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-11-19 13:37:36,222 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-11-19 13:37:36,222 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-11-19 13:37:36,222 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-11-19 13:37:36,222 INFO L130 BoogieDeclarations]: Found specification of procedure irda_get_next_speed [2021-11-19 13:37:36,222 INFO L138 BoogieDeclarations]: Found implementation of procedure irda_get_next_speed [2021-11-19 13:37:36,222 INFO L130 BoogieDeclarations]: Found specification of procedure ReadReg [2021-11-19 13:37:36,223 INFO L138 BoogieDeclarations]: Found implementation of procedure ReadReg [2021-11-19 13:37:36,223 INFO L130 BoogieDeclarations]: Found specification of procedure via_ircc_open [2021-11-19 13:37:36,223 INFO L138 BoogieDeclarations]: Found implementation of procedure via_ircc_open [2021-11-19 13:37:36,223 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2021-11-19 13:37:36,223 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2021-11-19 13:37:36,223 INFO L130 BoogieDeclarations]: Found specification of procedure WriteRegBit [2021-11-19 13:37:36,223 INFO L138 BoogieDeclarations]: Found implementation of procedure WriteRegBit [2021-11-19 13:37:36,223 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-19 13:37:36,223 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2021-11-19 13:37:36,224 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2021-11-19 13:37:36,224 INFO L130 BoogieDeclarations]: Found specification of procedure Wr_Indx [2021-11-19 13:37:36,224 INFO L138 BoogieDeclarations]: Found implementation of procedure Wr_Indx [2021-11-19 13:37:36,224 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-19 13:37:36,224 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-19 13:37:36,224 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-19 13:37:36,224 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-11-19 13:37:36,224 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-11-19 13:37:36,225 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-19 13:37:36,225 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2021-11-19 13:37:36,225 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2021-11-19 13:37:36,225 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-19 13:37:36,225 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-19 13:37:36,226 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-11-19 13:37:36,226 INFO L130 BoogieDeclarations]: Found specification of procedure WriteReg [2021-11-19 13:37:36,226 INFO L138 BoogieDeclarations]: Found implementation of procedure WriteReg [2021-11-19 13:37:36,226 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2021-11-19 13:37:36,226 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2021-11-19 13:37:36,226 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-11-19 13:37:36,226 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-11-19 13:37:36,227 INFO L130 BoogieDeclarations]: Found specification of procedure SetBaudRate [2021-11-19 13:37:36,227 INFO L138 BoogieDeclarations]: Found implementation of procedure SetBaudRate [2021-11-19 13:37:36,227 INFO L130 BoogieDeclarations]: Found specification of procedure Wr_Byte [2021-11-19 13:37:36,227 INFO L138 BoogieDeclarations]: Found implementation of procedure Wr_Byte [2021-11-19 13:37:36,227 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2021-11-19 13:37:36,227 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2021-11-19 13:37:36,227 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2021-11-19 13:37:36,228 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2021-11-19 13:37:36,228 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2021-11-19 13:37:36,228 INFO L130 BoogieDeclarations]: Found specification of procedure via_ircc_net_open [2021-11-19 13:37:36,228 INFO L138 BoogieDeclarations]: Found implementation of procedure via_ircc_net_open [2021-11-19 13:37:36,228 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-19 13:37:36,228 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-19 13:37:36,228 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-19 13:37:36,228 INFO L130 BoogieDeclarations]: Found specification of procedure ResetChip [2021-11-19 13:37:36,229 INFO L138 BoogieDeclarations]: Found implementation of procedure ResetChip [2021-11-19 13:37:36,229 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-19 13:37:36,229 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-19 13:37:36,229 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-19 13:37:36,229 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-19 13:37:36,229 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-19 13:37:36,229 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-19 13:37:36,229 INFO L130 BoogieDeclarations]: Found specification of procedure irda_device_txqueue_empty [2021-11-19 13:37:36,230 INFO L138 BoogieDeclarations]: Found implementation of procedure irda_device_txqueue_empty [2021-11-19 13:37:36,230 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-11-19 13:37:36,230 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-11-19 13:37:36,230 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_byte [2021-11-19 13:37:36,230 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_byte [2021-11-19 13:37:36,230 INFO L130 BoogieDeclarations]: Found specification of procedure Sdelay [2021-11-19 13:37:36,230 INFO L138 BoogieDeclarations]: Found implementation of procedure Sdelay [2021-11-19 13:37:36,230 INFO L130 BoogieDeclarations]: Found specification of procedure SetSIR [2021-11-19 13:37:36,231 INFO L138 BoogieDeclarations]: Found implementation of procedure SetSIR [2021-11-19 13:37:36,231 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-11-19 13:37:36,231 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-11-19 13:37:36,231 INFO L130 BoogieDeclarations]: Found specification of procedure SetMaxRxPacketSize [2021-11-19 13:37:36,231 INFO L138 BoogieDeclarations]: Found implementation of procedure SetMaxRxPacketSize [2021-11-19 13:37:36,231 INFO L130 BoogieDeclarations]: Found specification of procedure GetRecvByte [2021-11-19 13:37:36,231 INFO L138 BoogieDeclarations]: Found implementation of procedure GetRecvByte [2021-11-19 13:37:36,231 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2021-11-19 13:37:36,232 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2021-11-19 13:37:36,232 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-19 13:37:36,232 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-19 13:37:36,232 INFO L130 BoogieDeclarations]: Found specification of procedure hwreset [2021-11-19 13:37:36,232 INFO L138 BoogieDeclarations]: Found implementation of procedure hwreset [2021-11-19 13:37:36,232 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-19 13:37:36,232 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-19 13:37:36,232 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2021-11-19 13:37:36,233 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-19 13:37:36,233 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-19 13:37:36,233 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_byte [2021-11-19 13:37:36,233 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_byte [2021-11-19 13:37:36,233 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-11-19 13:37:36,233 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-11-19 13:37:36,233 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2021-11-19 13:37:36,233 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2021-11-19 13:37:36,234 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-19 13:37:36,234 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-19 13:37:36,234 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2021-11-19 13:37:36,234 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2021-11-19 13:37:36,234 INFO L130 BoogieDeclarations]: Found specification of procedure via_ircc_dma_xmit [2021-11-19 13:37:36,234 INFO L138 BoogieDeclarations]: Found implementation of procedure via_ircc_dma_xmit [2021-11-19 13:37:36,234 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2021-11-19 13:37:36,234 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2021-11-19 13:37:36,235 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2021-11-19 13:37:36,235 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2021-11-19 13:37:36,235 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2021-11-19 13:37:36,235 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2021-11-19 13:37:36,235 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-11-19 13:37:36,235 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-11-19 13:37:36,235 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~C_INT [2021-11-19 13:37:36,235 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~C_INT [2021-11-19 13:37:36,236 INFO L130 BoogieDeclarations]: Found specification of procedure __release_region [2021-11-19 13:37:36,236 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_region [2021-11-19 13:37:36,236 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-11-19 13:37:36,236 INFO L130 BoogieDeclarations]: Found specification of procedure net_ratelimit [2021-11-19 13:37:36,236 INFO L138 BoogieDeclarations]: Found implementation of procedure net_ratelimit [2021-11-19 13:37:36,236 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2021-11-19 13:37:36,236 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2021-11-19 13:37:36,236 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2021-11-19 13:37:36,236 INFO L130 BoogieDeclarations]: Found specification of procedure SetSendByte [2021-11-19 13:37:36,237 INFO L138 BoogieDeclarations]: Found implementation of procedure SetSendByte [2021-11-19 13:37:36,237 INFO L130 BoogieDeclarations]: Found specification of procedure dev_alloc_skb [2021-11-19 13:37:36,237 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_alloc_skb [2021-11-19 13:37:36,237 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-19 13:37:36,237 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-19 13:37:36,237 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_lock_of_via_ircc_cb [2021-11-19 13:37:36,237 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_lock_of_via_ircc_cb [2021-11-19 13:37:36,237 INFO L130 BoogieDeclarations]: Found specification of procedure SetSendPreambleCount [2021-11-19 13:37:36,238 INFO L138 BoogieDeclarations]: Found implementation of procedure SetSendPreambleCount [2021-11-19 13:37:36,238 INFO L130 BoogieDeclarations]: Found specification of procedure InitCard [2021-11-19 13:37:36,238 INFO L138 BoogieDeclarations]: Found implementation of procedure InitCard [2021-11-19 13:37:36,238 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-19 13:37:36,238 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-19 13:37:36,238 INFO L130 BoogieDeclarations]: Found specification of procedure SetTimer [2021-11-19 13:37:36,238 INFO L138 BoogieDeclarations]: Found implementation of procedure SetTimer [2021-11-19 13:37:36,238 INFO L130 BoogieDeclarations]: Found specification of procedure ActClk [2021-11-19 13:37:36,238 INFO L138 BoogieDeclarations]: Found implementation of procedure ActClk [2021-11-19 13:37:36,239 INFO L130 BoogieDeclarations]: Found specification of procedure request_dma [2021-11-19 13:37:36,239 INFO L138 BoogieDeclarations]: Found implementation of procedure request_dma [2021-11-19 13:37:36,239 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2021-11-19 13:37:36,239 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2021-11-19 13:37:36,239 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reset_mac_header [2021-11-19 13:37:36,239 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reset_mac_header [2021-11-19 13:37:36,239 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-11-19 13:37:36,239 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-11-19 13:37:36,240 INFO L130 BoogieDeclarations]: Found specification of procedure skb_copy_to_linear_data [2021-11-19 13:37:36,240 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_copy_to_linear_data [2021-11-19 13:37:37,088 INFO L236 CfgBuilder]: Building ICFG [2021-11-19 13:37:37,093 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-19 13:37:37,713 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-19 13:38:14,993 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-19 13:38:17,242 INFO L277 CfgBuilder]: Performing block encoding [2021-11-19 13:38:17,264 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-19 13:38:17,265 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-19 13:38:17,271 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 01:38:17 BoogieIcfgContainer [2021-11-19 13:38:17,271 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-19 13:38:17,274 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-19 13:38:17,274 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-19 13:38:17,277 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-19 13:38:17,278 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 01:37:30" (1/3) ... [2021-11-19 13:38:17,279 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f040a98 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 01:38:17, skipping insertion in model container [2021-11-19 13:38:17,279 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:37:35" (2/3) ... [2021-11-19 13:38:17,279 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f040a98 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 01:38:17, skipping insertion in model container [2021-11-19 13:38:17,280 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 01:38:17" (3/3) ... [2021-11-19 13:38:17,281 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-irda-via-ircc.cil.i [2021-11-19 13:38:17,288 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-19 13:38:17,288 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-11-19 13:38:17,359 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-19 13:38:17,367 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 [2021-11-19 13:38:17,367 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-11-19 13:38:17,491 INFO L276 IsEmpty]: Start isEmpty. Operand has 1916 states, 1168 states have (on average 1.2671232876712328) internal successors, (1480), 1194 states have internal predecessors, (1480), 654 states have call successors, (654), 92 states have call predecessors, (654), 91 states have return successors, (650), 638 states have call predecessors, (650), 650 states have call successors, (650) [2021-11-19 13:38:17,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2021-11-19 13:38:17,504 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:38:17,506 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:38:17,506 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-19 13:38:17,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:38:17,514 INFO L85 PathProgramCache]: Analyzing trace with hash 323938544, now seen corresponding path program 1 times [2021-11-19 13:38:17,539 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:38:17,540 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1320169301] [2021-11-19 13:38:17,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:38:17,541 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:38:17,542 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b07bc3d-7094-4daf-95c2-d87e34f419d7/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:38:17,545 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b07bc3d-7094-4daf-95c2-d87e34f419d7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:38:17,555 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b07bc3d-7094-4daf-95c2-d87e34f419d7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-19 13:38:18,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:38:18,621 INFO L263 TraceCheckSpWp]: Trace formula consists of 1182 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 13:38:18,631 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:38:19,036 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2021-11-19 13:38:19,036 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:38:19,365 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2021-11-19 13:38:19,366 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:38:19,366 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1320169301] [2021-11-19 13:38:19,367 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1320169301] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:38:19,367 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:38:19,368 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-19 13:38:19,369 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1609308783] [2021-11-19 13:38:19,370 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:38:19,376 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 13:38:19,376 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:38:19,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 13:38:19,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 13:38:19,417 INFO L87 Difference]: Start difference. First operand has 1916 states, 1168 states have (on average 1.2671232876712328) internal successors, (1480), 1194 states have internal predecessors, (1480), 654 states have call successors, (654), 92 states have call predecessors, (654), 91 states have return successors, (650), 638 states have call predecessors, (650), 650 states have call successors, (650) Second operand has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 4 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2021-11-19 13:38:21,611 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 [] [2021-11-19 13:38:29,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:38:29,422 INFO L93 Difference]: Finished difference Result 7491 states and 10982 transitions. [2021-11-19 13:38:29,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 13:38:29,428 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 4 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) Word has length 79 [2021-11-19 13:38:29,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:38:29,521 INFO L225 Difference]: With dead ends: 7491 [2021-11-19 13:38:29,522 INFO L226 Difference]: Without dead ends: 5575 [2021-11-19 13:38:29,548 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 154 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 13:38:29,553 INFO L933 BasicCegarLoop]: 4062 mSDtfsCounter, 5392 mSDsluCounter, 4868 mSDsCounter, 0 mSdLazyCounter, 1290 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5392 SdHoareTripleChecker+Valid, 8930 SdHoareTripleChecker+Invalid, 1298 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1290 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.2s IncrementalHoareTripleChecker+Time [2021-11-19 13:38:29,554 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5392 Valid, 8930 Invalid, 1298 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [7 Valid, 1290 Invalid, 1 Unknown, 0 Unchecked, 9.2s Time] [2021-11-19 13:38:29,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5575 states. [2021-11-19 13:38:30,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5575 to 5547. [2021-11-19 13:38:30,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5547 states, 3390 states have (on average 1.2648967551622419) internal successors, (4288), 3463 states have internal predecessors, (4288), 1886 states have call successors, (1886), 269 states have call predecessors, (1886), 268 states have return successors, (1883), 1847 states have call predecessors, (1883), 1883 states have call successors, (1883) [2021-11-19 13:38:30,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5547 states to 5547 states and 8057 transitions. [2021-11-19 13:38:30,346 INFO L78 Accepts]: Start accepts. Automaton has 5547 states and 8057 transitions. Word has length 79 [2021-11-19 13:38:30,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:38:30,348 INFO L470 AbstractCegarLoop]: Abstraction has 5547 states and 8057 transitions. [2021-11-19 13:38:30,349 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 4 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2021-11-19 13:38:30,349 INFO L276 IsEmpty]: Start isEmpty. Operand 5547 states and 8057 transitions. [2021-11-19 13:38:30,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2021-11-19 13:38:30,364 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:38:30,365 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:38:30,404 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b07bc3d-7094-4daf-95c2-d87e34f419d7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-19 13:38:30,591 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b07bc3d-7094-4daf-95c2-d87e34f419d7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:38:30,592 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-19 13:38:30,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:38:30,593 INFO L85 PathProgramCache]: Analyzing trace with hash -2114790599, now seen corresponding path program 1 times [2021-11-19 13:38:30,596 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:38:30,596 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1449779232] [2021-11-19 13:38:30,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:38:30,596 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:38:30,603 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b07bc3d-7094-4daf-95c2-d87e34f419d7/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:38:30,604 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b07bc3d-7094-4daf-95c2-d87e34f419d7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:38:30,611 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b07bc3d-7094-4daf-95c2-d87e34f419d7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-19 13:38:31,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:38:31,702 INFO L263 TraceCheckSpWp]: Trace formula consists of 1216 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 13:38:31,708 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:38:32,054 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2021-11-19 13:38:32,054 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:38:32,377 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2021-11-19 13:38:32,378 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:38:32,378 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1449779232] [2021-11-19 13:38:32,378 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1449779232] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:38:32,379 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:38:32,379 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-19 13:38:32,379 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [126785818] [2021-11-19 13:38:32,380 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:38:32,382 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 13:38:32,382 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:38:32,383 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 13:38:32,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 13:38:32,384 INFO L87 Difference]: Start difference. First operand 5547 states and 8057 transitions. Second operand has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 4 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2021-11-19 13:38:34,589 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 [] [2021-11-19 13:38:41,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:38:41,538 INFO L93 Difference]: Finished difference Result 19671 states and 28625 transitions. [2021-11-19 13:38:41,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 13:38:41,539 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 4 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) Word has length 83 [2021-11-19 13:38:41,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:38:41,732 INFO L225 Difference]: With dead ends: 19671 [2021-11-19 13:38:41,733 INFO L226 Difference]: Without dead ends: 14139 [2021-11-19 13:38:41,869 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 162 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 13:38:41,871 INFO L933 BasicCegarLoop]: 3866 mSDtfsCounter, 4301 mSDsluCounter, 5546 mSDsCounter, 0 mSdLazyCounter, 1066 mSolverCounterSat, 14 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4301 SdHoareTripleChecker+Valid, 9412 SdHoareTripleChecker+Invalid, 1081 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 1066 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.1s IncrementalHoareTripleChecker+Time [2021-11-19 13:38:41,872 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4301 Valid, 9412 Invalid, 1081 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [14 Valid, 1066 Invalid, 1 Unknown, 0 Unchecked, 8.1s Time] [2021-11-19 13:38:41,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14139 states. [2021-11-19 13:38:43,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14139 to 14061. [2021-11-19 13:38:43,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14061 states, 8474 states have (on average 1.254661316969554) internal successors, (10632), 8689 states have internal predecessors, (10632), 4872 states have call successors, (4872), 719 states have call predecessors, (4872), 712 states have return successors, (4971), 4739 states have call predecessors, (4971), 4869 states have call successors, (4971) [2021-11-19 13:38:43,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14061 states to 14061 states and 20475 transitions. [2021-11-19 13:38:43,451 INFO L78 Accepts]: Start accepts. Automaton has 14061 states and 20475 transitions. Word has length 83 [2021-11-19 13:38:43,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:38:43,455 INFO L470 AbstractCegarLoop]: Abstraction has 14061 states and 20475 transitions. [2021-11-19 13:38:43,456 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 4 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2021-11-19 13:38:43,457 INFO L276 IsEmpty]: Start isEmpty. Operand 14061 states and 20475 transitions. [2021-11-19 13:38:43,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2021-11-19 13:38:43,459 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:38:43,460 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:38:43,496 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b07bc3d-7094-4daf-95c2-d87e34f419d7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-19 13:38:43,687 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b07bc3d-7094-4daf-95c2-d87e34f419d7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:38:43,687 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-19 13:38:43,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:38:43,688 INFO L85 PathProgramCache]: Analyzing trace with hash 391842989, now seen corresponding path program 1 times [2021-11-19 13:38:43,690 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:38:43,690 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1969011510] [2021-11-19 13:38:43,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:38:43,691 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:38:43,691 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b07bc3d-7094-4daf-95c2-d87e34f419d7/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:38:43,694 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b07bc3d-7094-4daf-95c2-d87e34f419d7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:38:43,739 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b07bc3d-7094-4daf-95c2-d87e34f419d7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-19 13:38:44,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:38:44,863 INFO L263 TraceCheckSpWp]: Trace formula consists of 1227 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 13:38:44,868 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:38:45,202 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2021-11-19 13:38:45,202 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:38:45,507 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2021-11-19 13:38:45,507 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:38:45,507 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1969011510] [2021-11-19 13:38:45,508 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1969011510] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:38:45,508 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:38:45,508 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-19 13:38:45,508 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2085839962] [2021-11-19 13:38:45,508 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:38:45,510 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 13:38:45,510 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:38:45,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 13:38:45,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 13:38:45,511 INFO L87 Difference]: Start difference. First operand 14061 states and 20475 transitions. Second operand has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 4 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2021-11-19 13:38:47,679 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 13:38:57,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:38:57,474 INFO L93 Difference]: Finished difference Result 52437 states and 76455 transitions. [2021-11-19 13:38:57,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 13:38:57,475 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 4 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) Word has length 87 [2021-11-19 13:38:57,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:38:57,930 INFO L225 Difference]: With dead ends: 52437 [2021-11-19 13:38:57,930 INFO L226 Difference]: Without dead ends: 38391 [2021-11-19 13:38:58,065 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 170 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 13:38:58,073 INFO L933 BasicCegarLoop]: 3962 mSDtfsCounter, 5173 mSDsluCounter, 4922 mSDsCounter, 0 mSdLazyCounter, 1301 mSolverCounterSat, 21 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5173 SdHoareTripleChecker+Valid, 8884 SdHoareTripleChecker+Invalid, 1323 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 1301 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.6s IncrementalHoareTripleChecker+Time [2021-11-19 13:38:58,075 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5173 Valid, 8884 Invalid, 1323 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [21 Valid, 1301 Invalid, 1 Unknown, 0 Unchecked, 9.6s Time] [2021-11-19 13:38:58,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38391 states. [2021-11-19 13:39:01,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38391 to 38289. [2021-11-19 13:39:01,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38289 states, 23009 states have (on average 1.2523360424181842) internal successors, (28815), 23668 states have internal predecessors, (28815), 13311 states have call successors, (13311), 2021 states have call predecessors, (13311), 1966 states have return successors, (13698), 12824 states have call predecessors, (13698), 13308 states have call successors, (13698) [2021-11-19 13:39:01,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38289 states to 38289 states and 55824 transitions. [2021-11-19 13:39:01,822 INFO L78 Accepts]: Start accepts. Automaton has 38289 states and 55824 transitions. Word has length 87 [2021-11-19 13:39:01,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:39:01,823 INFO L470 AbstractCegarLoop]: Abstraction has 38289 states and 55824 transitions. [2021-11-19 13:39:01,823 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 4 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2021-11-19 13:39:01,824 INFO L276 IsEmpty]: Start isEmpty. Operand 38289 states and 55824 transitions. [2021-11-19 13:39:01,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2021-11-19 13:39:01,837 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:39:01,838 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 5, 5, 5, 5, 5, 5, 4, 4, 4, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:39:01,872 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b07bc3d-7094-4daf-95c2-d87e34f419d7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-19 13:39:02,063 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b07bc3d-7094-4daf-95c2-d87e34f419d7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:39:02,064 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-19 13:39:02,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:39:02,064 INFO L85 PathProgramCache]: Analyzing trace with hash -656831850, now seen corresponding path program 1 times [2021-11-19 13:39:02,066 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:39:02,066 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1343058288] [2021-11-19 13:39:02,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:39:02,066 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:39:02,067 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b07bc3d-7094-4daf-95c2-d87e34f419d7/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:39:02,071 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b07bc3d-7094-4daf-95c2-d87e34f419d7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:39:02,111 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b07bc3d-7094-4daf-95c2-d87e34f419d7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-19 13:39:03,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:39:03,116 INFO L263 TraceCheckSpWp]: Trace formula consists of 1305 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 13:39:03,121 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:39:04,316 INFO L134 CoverageAnalysis]: Checked inductivity of 198 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 198 trivial. 0 not checked. [2021-11-19 13:39:04,316 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:39:05,059 INFO L134 CoverageAnalysis]: Checked inductivity of 198 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 198 trivial. 0 not checked. [2021-11-19 13:39:05,059 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:39:05,059 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1343058288] [2021-11-19 13:39:05,059 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1343058288] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:39:05,060 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:39:05,060 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 5] imperfect sequences [] total 7 [2021-11-19 13:39:05,060 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1405141289] [2021-11-19 13:39:05,060 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:39:05,061 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-19 13:39:05,061 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:39:05,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-19 13:39:05,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-19 13:39:05,062 INFO L87 Difference]: Start difference. First operand 38289 states and 55824 transitions. Second operand has 7 states, 7 states have (on average 9.0) internal successors, (63), 5 states have internal predecessors, (63), 2 states have call successors, (31), 4 states have call predecessors, (31), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2021-11-19 13:39:07,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:39:07,190 INFO L93 Difference]: Finished difference Result 38295 states and 55829 transitions. [2021-11-19 13:39:07,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 13:39:07,191 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 5 states have internal predecessors, (63), 2 states have call successors, (31), 4 states have call predecessors, (31), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 134 [2021-11-19 13:39:07,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:39:07,465 INFO L225 Difference]: With dead ends: 38295 [2021-11-19 13:39:07,465 INFO L226 Difference]: Without dead ends: 38293 [2021-11-19 13:39:07,490 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 269 GetRequests, 261 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2021-11-19 13:39:07,491 INFO L933 BasicCegarLoop]: 2761 mSDtfsCounter, 2690 mSDsluCounter, 5508 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2703 SdHoareTripleChecker+Valid, 8269 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 13:39:07,491 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2703 Valid, 8269 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-19 13:39:07,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38293 states. [2021-11-19 13:39:10,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38293 to 38293. [2021-11-19 13:39:10,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38293 states, 23012 states have (on average 1.2523031461845993) internal successors, (28818), 23671 states have internal predecessors, (28818), 13311 states have call successors, (13311), 2022 states have call predecessors, (13311), 1967 states have return successors, (13698), 12824 states have call predecessors, (13698), 13308 states have call successors, (13698) [2021-11-19 13:39:10,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38293 states to 38293 states and 55827 transitions. [2021-11-19 13:39:10,708 INFO L78 Accepts]: Start accepts. Automaton has 38293 states and 55827 transitions. Word has length 134 [2021-11-19 13:39:10,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:39:10,709 INFO L470 AbstractCegarLoop]: Abstraction has 38293 states and 55827 transitions. [2021-11-19 13:39:10,710 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 5 states have internal predecessors, (63), 2 states have call successors, (31), 4 states have call predecessors, (31), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2021-11-19 13:39:10,710 INFO L276 IsEmpty]: Start isEmpty. Operand 38293 states and 55827 transitions. [2021-11-19 13:39:10,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2021-11-19 13:39:10,717 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:39:10,718 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 5, 5, 5, 5, 5, 5, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:39:10,753 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b07bc3d-7094-4daf-95c2-d87e34f419d7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-19 13:39:10,942 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b07bc3d-7094-4daf-95c2-d87e34f419d7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:39:10,943 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-19 13:39:10,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:39:10,943 INFO L85 PathProgramCache]: Analyzing trace with hash 347567025, now seen corresponding path program 1 times [2021-11-19 13:39:10,945 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:39:10,945 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1769872841] [2021-11-19 13:39:10,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:39:10,946 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:39:10,946 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b07bc3d-7094-4daf-95c2-d87e34f419d7/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:39:10,950 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b07bc3d-7094-4daf-95c2-d87e34f419d7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:39:10,992 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b07bc3d-7094-4daf-95c2-d87e34f419d7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-19 13:39:12,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:39:12,057 INFO L263 TraceCheckSpWp]: Trace formula consists of 1312 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 13:39:12,061 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:39:13,159 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 198 trivial. 0 not checked. [2021-11-19 13:39:13,159 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:39:13,879 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 198 trivial. 0 not checked. [2021-11-19 13:39:13,879 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:39:13,879 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1769872841] [2021-11-19 13:39:13,879 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1769872841] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 13:39:13,879 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-19 13:39:13,880 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2021-11-19 13:39:13,880 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [185643863] [2021-11-19 13:39:13,880 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 13:39:13,880 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 13:39:13,881 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:39:13,881 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 13:39:13,881 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-19 13:39:13,881 INFO L87 Difference]: Start difference. First operand 38293 states and 55827 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (17), 3 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-11-19 13:39:16,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:39:16,005 INFO L93 Difference]: Finished difference Result 38299 states and 55832 transitions. [2021-11-19 13:39:16,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 13:39:16,006 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (17), 3 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 139 [2021-11-19 13:39:16,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:39:16,392 INFO L225 Difference]: With dead ends: 38299 [2021-11-19 13:39:16,392 INFO L226 Difference]: Without dead ends: 38297 [2021-11-19 13:39:16,428 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 279 GetRequests, 271 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2021-11-19 13:39:16,429 INFO L933 BasicCegarLoop]: 2764 mSDtfsCounter, 2708 mSDsluCounter, 5507 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2720 SdHoareTripleChecker+Valid, 8271 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 13:39:16,430 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2720 Valid, 8271 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-19 13:39:16,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38297 states. [2021-11-19 13:39:19,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38297 to 38297. [2021-11-19 13:39:19,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38297 states, 23015 states have (on average 1.2522702585270475) internal successors, (28821), 23674 states have internal predecessors, (28821), 13311 states have call successors, (13311), 2023 states have call predecessors, (13311), 1968 states have return successors, (13698), 12824 states have call predecessors, (13698), 13308 states have call successors, (13698) [2021-11-19 13:39:19,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38297 states to 38297 states and 55830 transitions. [2021-11-19 13:39:19,840 INFO L78 Accepts]: Start accepts. Automaton has 38297 states and 55830 transitions. Word has length 139 [2021-11-19 13:39:19,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:39:19,842 INFO L470 AbstractCegarLoop]: Abstraction has 38297 states and 55830 transitions. [2021-11-19 13:39:19,842 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (17), 3 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-11-19 13:39:19,844 INFO L276 IsEmpty]: Start isEmpty. Operand 38297 states and 55830 transitions. [2021-11-19 13:39:19,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2021-11-19 13:39:19,851 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:39:19,851 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:39:19,883 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b07bc3d-7094-4daf-95c2-d87e34f419d7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-19 13:39:20,074 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b07bc3d-7094-4daf-95c2-d87e34f419d7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:39:20,075 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-19 13:39:20,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:39:20,076 INFO L85 PathProgramCache]: Analyzing trace with hash -2108482762, now seen corresponding path program 1 times [2021-11-19 13:39:20,078 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:39:20,078 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2043348857] [2021-11-19 13:39:20,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:39:20,078 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:39:20,079 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b07bc3d-7094-4daf-95c2-d87e34f419d7/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:39:20,081 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b07bc3d-7094-4daf-95c2-d87e34f419d7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:39:20,122 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b07bc3d-7094-4daf-95c2-d87e34f419d7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-19 13:39:21,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:39:21,099 INFO L263 TraceCheckSpWp]: Trace formula consists of 1319 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 13:39:21,106 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:39:22,339 INFO L134 CoverageAnalysis]: Checked inductivity of 206 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 202 trivial. 0 not checked. [2021-11-19 13:39:22,340 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:39:23,062 INFO L134 CoverageAnalysis]: Checked inductivity of 206 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 202 trivial. 0 not checked. [2021-11-19 13:39:23,063 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:39:23,063 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2043348857] [2021-11-19 13:39:23,063 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2043348857] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 13:39:23,063 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-19 13:39:23,063 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2021-11-19 13:39:23,064 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1235549981] [2021-11-19 13:39:23,064 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 13:39:23,064 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 13:39:23,064 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:39:23,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 13:39:23,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-19 13:39:23,065 INFO L87 Difference]: Start difference. First operand 38297 states and 55830 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-11-19 13:39:25,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:39:25,224 INFO L93 Difference]: Finished difference Result 38303 states and 55835 transitions. [2021-11-19 13:39:25,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 13:39:25,224 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 144 [2021-11-19 13:39:25,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:39:25,558 INFO L225 Difference]: With dead ends: 38303 [2021-11-19 13:39:25,558 INFO L226 Difference]: Without dead ends: 38301 [2021-11-19 13:39:25,593 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 289 GetRequests, 281 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2021-11-19 13:39:25,597 INFO L933 BasicCegarLoop]: 2764 mSDtfsCounter, 2708 mSDsluCounter, 5507 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2719 SdHoareTripleChecker+Valid, 8271 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 13:39:25,598 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2719 Valid, 8271 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-19 13:39:25,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38301 states. [2021-11-19 13:39:28,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38301 to 38301. [2021-11-19 13:39:28,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38301 states, 23018 states have (on average 1.2522373794421757) internal successors, (28824), 23677 states have internal predecessors, (28824), 13311 states have call successors, (13311), 2024 states have call predecessors, (13311), 1969 states have return successors, (13698), 12824 states have call predecessors, (13698), 13308 states have call successors, (13698) [2021-11-19 13:39:28,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38301 states to 38301 states and 55833 transitions. [2021-11-19 13:39:28,745 INFO L78 Accepts]: Start accepts. Automaton has 38301 states and 55833 transitions. Word has length 144 [2021-11-19 13:39:28,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:39:28,746 INFO L470 AbstractCegarLoop]: Abstraction has 38301 states and 55833 transitions. [2021-11-19 13:39:28,746 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-11-19 13:39:28,746 INFO L276 IsEmpty]: Start isEmpty. Operand 38301 states and 55833 transitions. [2021-11-19 13:39:28,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2021-11-19 13:39:28,753 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:39:28,754 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:39:28,797 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b07bc3d-7094-4daf-95c2-d87e34f419d7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-19 13:39:28,970 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b07bc3d-7094-4daf-95c2-d87e34f419d7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:39:28,971 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-19 13:39:28,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:39:28,971 INFO L85 PathProgramCache]: Analyzing trace with hash 972650129, now seen corresponding path program 1 times [2021-11-19 13:39:28,973 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:39:28,973 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [58844159] [2021-11-19 13:39:28,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:39:28,974 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:39:28,974 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b07bc3d-7094-4daf-95c2-d87e34f419d7/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:39:28,975 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b07bc3d-7094-4daf-95c2-d87e34f419d7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:39:29,025 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b07bc3d-7094-4daf-95c2-d87e34f419d7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-19 13:39:29,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:39:29,983 INFO L263 TraceCheckSpWp]: Trace formula consists of 1326 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 13:39:29,987 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:39:31,214 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2021-11-19 13:39:31,215 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:39:32,250 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2021-11-19 13:39:32,251 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:39:32,251 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [58844159] [2021-11-19 13:39:32,251 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [58844159] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 13:39:32,251 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-19 13:39:32,252 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2021-11-19 13:39:32,252 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1520424027] [2021-11-19 13:39:32,252 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 13:39:32,253 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 13:39:32,253 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:39:32,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 13:39:32,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-19 13:39:32,254 INFO L87 Difference]: Start difference. First operand 38301 states and 55833 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2021-11-19 13:39:34,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:39:34,587 INFO L93 Difference]: Finished difference Result 38307 states and 55838 transitions. [2021-11-19 13:39:34,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 13:39:34,588 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 149 [2021-11-19 13:39:34,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:39:34,824 INFO L225 Difference]: With dead ends: 38307 [2021-11-19 13:39:34,824 INFO L226 Difference]: Without dead ends: 38305 [2021-11-19 13:39:34,853 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 299 GetRequests, 291 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2021-11-19 13:39:34,854 INFO L933 BasicCegarLoop]: 2764 mSDtfsCounter, 2708 mSDsluCounter, 5507 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2718 SdHoareTripleChecker+Valid, 8271 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 13:39:34,855 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2718 Valid, 8271 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-19 13:39:34,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38305 states. [2021-11-19 13:39:37,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38305 to 38305. [2021-11-19 13:39:37,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38305 states, 23021 states have (on average 1.2522045089266323) internal successors, (28827), 23680 states have internal predecessors, (28827), 13311 states have call successors, (13311), 2025 states have call predecessors, (13311), 1970 states have return successors, (13698), 12824 states have call predecessors, (13698), 13308 states have call successors, (13698) [2021-11-19 13:39:38,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38305 states to 38305 states and 55836 transitions. [2021-11-19 13:39:38,034 INFO L78 Accepts]: Start accepts. Automaton has 38305 states and 55836 transitions. Word has length 149 [2021-11-19 13:39:38,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:39:38,035 INFO L470 AbstractCegarLoop]: Abstraction has 38305 states and 55836 transitions. [2021-11-19 13:39:38,035 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2021-11-19 13:39:38,035 INFO L276 IsEmpty]: Start isEmpty. Operand 38305 states and 55836 transitions. [2021-11-19 13:39:38,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2021-11-19 13:39:38,044 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:39:38,045 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:39:38,079 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b07bc3d-7094-4daf-95c2-d87e34f419d7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-19 13:39:38,258 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b07bc3d-7094-4daf-95c2-d87e34f419d7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:39:38,259 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-19 13:39:38,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:39:38,259 INFO L85 PathProgramCache]: Analyzing trace with hash 1048187862, now seen corresponding path program 1 times [2021-11-19 13:39:38,260 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:39:38,261 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1216214553] [2021-11-19 13:39:38,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:39:38,261 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:39:38,261 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b07bc3d-7094-4daf-95c2-d87e34f419d7/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:39:38,262 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b07bc3d-7094-4daf-95c2-d87e34f419d7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:39:38,272 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b07bc3d-7094-4daf-95c2-d87e34f419d7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-19 13:39:39,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:39:39,185 INFO L263 TraceCheckSpWp]: Trace formula consists of 1333 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 13:39:39,189 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:39:40,432 INFO L134 CoverageAnalysis]: Checked inductivity of 230 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 222 trivial. 0 not checked. [2021-11-19 13:39:40,433 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:39:41,141 INFO L134 CoverageAnalysis]: Checked inductivity of 230 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 222 trivial. 0 not checked. [2021-11-19 13:39:41,142 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:39:41,142 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1216214553] [2021-11-19 13:39:41,142 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1216214553] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 13:39:41,142 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-19 13:39:41,142 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2021-11-19 13:39:41,142 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1248866559] [2021-11-19 13:39:41,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 13:39:41,143 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 13:39:41,143 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:39:41,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 13:39:41,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-19 13:39:41,144 INFO L87 Difference]: Start difference. First operand 38305 states and 55836 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-11-19 13:39:43,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:39:43,653 INFO L93 Difference]: Finished difference Result 38311 states and 55841 transitions. [2021-11-19 13:39:43,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 13:39:43,655 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 154 [2021-11-19 13:39:43,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:39:43,867 INFO L225 Difference]: With dead ends: 38311 [2021-11-19 13:39:43,867 INFO L226 Difference]: Without dead ends: 38309 [2021-11-19 13:39:43,886 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 309 GetRequests, 301 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2021-11-19 13:39:43,887 INFO L933 BasicCegarLoop]: 2764 mSDtfsCounter, 2708 mSDsluCounter, 5507 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2717 SdHoareTripleChecker+Valid, 8271 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 13:39:43,887 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2717 Valid, 8271 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-19 13:39:43,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38309 states. [2021-11-19 13:39:46,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38309 to 38309. [2021-11-19 13:39:46,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38309 states, 23024 states have (on average 1.2521716469770674) internal successors, (28830), 23683 states have internal predecessors, (28830), 13311 states have call successors, (13311), 2026 states have call predecessors, (13311), 1971 states have return successors, (13698), 12824 states have call predecessors, (13698), 13308 states have call successors, (13698) [2021-11-19 13:39:47,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38309 states to 38309 states and 55839 transitions. [2021-11-19 13:39:47,197 INFO L78 Accepts]: Start accepts. Automaton has 38309 states and 55839 transitions. Word has length 154 [2021-11-19 13:39:47,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:39:47,198 INFO L470 AbstractCegarLoop]: Abstraction has 38309 states and 55839 transitions. [2021-11-19 13:39:47,198 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-11-19 13:39:47,199 INFO L276 IsEmpty]: Start isEmpty. Operand 38309 states and 55839 transitions. [2021-11-19 13:39:47,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2021-11-19 13:39:47,207 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:39:47,208 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:39:47,238 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b07bc3d-7094-4daf-95c2-d87e34f419d7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-11-19 13:39:47,422 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b07bc3d-7094-4daf-95c2-d87e34f419d7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:39:47,423 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-19 13:39:47,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:39:47,423 INFO L85 PathProgramCache]: Analyzing trace with hash 1756303729, now seen corresponding path program 1 times [2021-11-19 13:39:47,425 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:39:47,425 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [48390715] [2021-11-19 13:39:47,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:39:47,425 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:39:47,426 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b07bc3d-7094-4daf-95c2-d87e34f419d7/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:39:47,426 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b07bc3d-7094-4daf-95c2-d87e34f419d7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:39:47,429 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b07bc3d-7094-4daf-95c2-d87e34f419d7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-19 13:39:48,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:39:48,407 INFO L263 TraceCheckSpWp]: Trace formula consists of 1340 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 13:39:48,412 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:39:49,733 INFO L134 CoverageAnalysis]: Checked inductivity of 248 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 238 trivial. 0 not checked. [2021-11-19 13:39:49,733 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:39:50,671 INFO L134 CoverageAnalysis]: Checked inductivity of 248 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 238 trivial. 0 not checked. [2021-11-19 13:39:50,671 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:39:50,672 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [48390715] [2021-11-19 13:39:50,672 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [48390715] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 13:39:50,672 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-19 13:39:50,672 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2021-11-19 13:39:50,673 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [20760221] [2021-11-19 13:39:50,673 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 13:39:50,674 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 13:39:50,674 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:39:50,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 13:39:50,675 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-19 13:39:50,675 INFO L87 Difference]: Start difference. First operand 38309 states and 55839 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-11-19 13:39:52,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:39:52,679 INFO L93 Difference]: Finished difference Result 38315 states and 55844 transitions. [2021-11-19 13:39:52,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 13:39:52,680 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 159 [2021-11-19 13:39:52,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:39:52,860 INFO L225 Difference]: With dead ends: 38315 [2021-11-19 13:39:52,860 INFO L226 Difference]: Without dead ends: 38313 [2021-11-19 13:39:52,886 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 319 GetRequests, 311 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2021-11-19 13:39:52,887 INFO L933 BasicCegarLoop]: 2764 mSDtfsCounter, 2708 mSDsluCounter, 5507 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2716 SdHoareTripleChecker+Valid, 8271 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 13:39:52,887 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2716 Valid, 8271 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-19 13:39:52,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38313 states. [2021-11-19 13:39:55,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38313 to 38313. [2021-11-19 13:39:55,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38313 states, 23027 states have (on average 1.2521387935901334) internal successors, (28833), 23686 states have internal predecessors, (28833), 13311 states have call successors, (13311), 2027 states have call predecessors, (13311), 1972 states have return successors, (13698), 12824 states have call predecessors, (13698), 13308 states have call successors, (13698) [2021-11-19 13:39:56,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38313 states to 38313 states and 55842 transitions. [2021-11-19 13:39:56,154 INFO L78 Accepts]: Start accepts. Automaton has 38313 states and 55842 transitions. Word has length 159 [2021-11-19 13:39:56,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:39:56,154 INFO L470 AbstractCegarLoop]: Abstraction has 38313 states and 55842 transitions. [2021-11-19 13:39:56,155 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-11-19 13:39:56,155 INFO L276 IsEmpty]: Start isEmpty. Operand 38313 states and 55842 transitions. [2021-11-19 13:39:56,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2021-11-19 13:39:56,162 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:39:56,163 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:39:56,204 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b07bc3d-7094-4daf-95c2-d87e34f419d7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-11-19 13:39:56,386 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b07bc3d-7094-4daf-95c2-d87e34f419d7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:39:56,387 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-19 13:39:56,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:39:56,387 INFO L85 PathProgramCache]: Analyzing trace with hash 433469020, now seen corresponding path program 1 times [2021-11-19 13:39:56,388 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:39:56,389 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [863481768] [2021-11-19 13:39:56,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:39:56,389 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:39:56,389 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b07bc3d-7094-4daf-95c2-d87e34f419d7/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:39:56,390 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b07bc3d-7094-4daf-95c2-d87e34f419d7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:39:56,391 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b07bc3d-7094-4daf-95c2-d87e34f419d7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process