./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-vlsi_ir.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_0cb5f660-dd99-4688-aff2-012d21006393/bin/utaipan-UbGMyvGFUs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5f660-dd99-4688-aff2-012d21006393/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_0cb5f660-dd99-4688-aff2-012d21006393/bin/utaipan-UbGMyvGFUs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5f660-dd99-4688-aff2-012d21006393/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-vlsi_ir.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5f660-dd99-4688-aff2-012d21006393/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_0cb5f660-dd99-4688-aff2-012d21006393/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 75b1aed7e7cb1bec6496160634d456a50c33979e7f90c34d568c6a02281e03b1 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 13:25:57,488 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 13:25:57,492 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 13:25:57,561 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 13:25:57,561 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 13:25:57,563 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 13:25:57,565 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 13:25:57,569 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 13:25:57,571 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 13:25:57,573 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 13:25:57,574 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 13:25:57,576 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 13:25:57,577 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 13:25:57,579 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 13:25:57,581 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 13:25:57,583 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 13:25:57,584 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 13:25:57,586 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 13:25:57,588 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 13:25:57,592 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 13:25:57,594 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 13:25:57,596 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 13:25:57,598 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 13:25:57,599 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 13:25:57,604 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 13:25:57,605 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 13:25:57,606 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 13:25:57,607 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 13:25:57,608 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 13:25:57,609 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 13:25:57,610 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 13:25:57,611 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 13:25:57,615 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 13:25:57,618 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 13:25:57,620 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 13:25:57,621 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 13:25:57,623 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 13:25:57,623 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 13:25:57,624 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 13:25:57,625 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 13:25:57,626 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 13:25:57,628 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5f660-dd99-4688-aff2-012d21006393/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-19 13:25:57,679 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 13:25:57,679 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 13:25:57,681 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 13:25:57,682 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 13:25:57,682 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-19 13:25:57,682 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-19 13:25:57,683 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-19 13:25:57,683 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-19 13:25:57,683 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-19 13:25:57,684 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-19 13:25:57,685 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-19 13:25:57,686 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-19 13:25:57,686 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-19 13:25:57,687 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-19 13:25:57,687 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-19 13:25:57,687 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-19 13:25:57,688 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 13:25:57,689 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-19 13:25:57,689 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 13:25:57,689 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-19 13:25:57,690 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 13:25:57,690 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-19 13:25:57,691 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-19 13:25:57,691 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 13:25:57,691 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 13:25:57,692 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-19 13:25:57,692 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 13:25:57,693 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 13:25:57,693 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 13:25:57,695 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 13:25:57,696 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 13:25:57,696 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-19 13:25:57,697 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-19 13:25:57,697 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-19 13:25:57,697 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-19 13:25:57,698 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 13:25:57,698 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-19 13:25:57,698 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_0cb5f660-dd99-4688-aff2-012d21006393/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5f660-dd99-4688-aff2-012d21006393/bin/utaipan-UbGMyvGFUs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 75b1aed7e7cb1bec6496160634d456a50c33979e7f90c34d568c6a02281e03b1 [2021-11-19 13:25:58,067 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 13:25:58,103 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 13:25:58,106 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 13:25:58,108 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 13:25:58,109 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 13:25:58,110 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5f660-dd99-4688-aff2-012d21006393/bin/utaipan-UbGMyvGFUs/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-irda-vlsi_ir.cil.i [2021-11-19 13:25:58,190 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5f660-dd99-4688-aff2-012d21006393/bin/utaipan-UbGMyvGFUs/data/af5f08149/c00cf1fb9efd42f89bae5c5412280b70/FLAG98de6ac71 [2021-11-19 13:25:59,413 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 13:25:59,414 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5f660-dd99-4688-aff2-012d21006393/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-irda-vlsi_ir.cil.i [2021-11-19 13:25:59,496 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5f660-dd99-4688-aff2-012d21006393/bin/utaipan-UbGMyvGFUs/data/af5f08149/c00cf1fb9efd42f89bae5c5412280b70/FLAG98de6ac71 [2021-11-19 13:25:59,583 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5f660-dd99-4688-aff2-012d21006393/bin/utaipan-UbGMyvGFUs/data/af5f08149/c00cf1fb9efd42f89bae5c5412280b70 [2021-11-19 13:25:59,586 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 13:25:59,590 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 13:25:59,592 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 13:25:59,592 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 13:25:59,596 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 13:25:59,598 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 01:25:59" (1/1) ... [2021-11-19 13:25:59,600 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@267c0fd5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:25:59, skipping insertion in model container [2021-11-19 13:25:59,601 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 01:25:59" (1/1) ... [2021-11-19 13:25:59,619 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 13:25:59,874 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 13:26:04,170 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_0cb5f660-dd99-4688-aff2-012d21006393/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-irda-vlsi_ir.cil.i[347848,347861] [2021-11-19 13:26:04,174 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_0cb5f660-dd99-4688-aff2-012d21006393/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-irda-vlsi_ir.cil.i[348017,348030] [2021-11-19 13:26:04,182 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_0cb5f660-dd99-4688-aff2-012d21006393/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-irda-vlsi_ir.cil.i[348184,348197] [2021-11-19 13:26:04,182 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_0cb5f660-dd99-4688-aff2-012d21006393/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-irda-vlsi_ir.cil.i[348352,348365] [2021-11-19 13:26:04,221 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 13:26:04,280 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 13:26:04,281 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@7a01a92d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:26:04, skipping insertion in model container [2021-11-19 13:26:04,281 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 13:26:04,282 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-19 13:26:04,284 INFO L158 Benchmark]: Toolchain (without parser) took 4692.72ms. Allocated memory was 90.2MB in the beginning and 125.8MB in the end (delta: 35.7MB). Free memory was 54.2MB in the beginning and 58.2MB in the end (delta: -4.0MB). Peak memory consumption was 45.3MB. Max. memory is 16.1GB. [2021-11-19 13:26:04,286 INFO L158 Benchmark]: CDTParser took 0.37ms. Allocated memory is still 90.2MB. Free memory was 65.3MB in the beginning and 65.2MB in the end (delta: 47.2kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 13:26:04,288 INFO L158 Benchmark]: CACSL2BoogieTranslator took 4689.65ms. Allocated memory was 90.2MB in the beginning and 125.8MB in the end (delta: 35.7MB). Free memory was 54.0MB in the beginning and 58.2MB in the end (delta: -4.2MB). Peak memory consumption was 45.3MB. Max. memory is 16.1GB. [2021-11-19 13:26:04,291 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37ms. Allocated memory is still 90.2MB. Free memory was 65.3MB in the beginning and 65.2MB in the end (delta: 47.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 4689.65ms. Allocated memory was 90.2MB in the beginning and 125.8MB in the end (delta: 35.7MB). Free memory was 54.0MB in the beginning and 58.2MB in the end (delta: -4.2MB). Peak memory consumption was 45.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 6977]: 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_0cb5f660-dd99-4688-aff2-012d21006393/bin/utaipan-UbGMyvGFUs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5f660-dd99-4688-aff2-012d21006393/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_0cb5f660-dd99-4688-aff2-012d21006393/bin/utaipan-UbGMyvGFUs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5f660-dd99-4688-aff2-012d21006393/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-vlsi_ir.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5f660-dd99-4688-aff2-012d21006393/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_0cb5f660-dd99-4688-aff2-012d21006393/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 75b1aed7e7cb1bec6496160634d456a50c33979e7f90c34d568c6a02281e03b1 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 13:26:07,177 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 13:26:07,180 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 13:26:07,218 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 13:26:07,219 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 13:26:07,221 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 13:26:07,223 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 13:26:07,227 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 13:26:07,230 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 13:26:07,231 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 13:26:07,233 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 13:26:07,235 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 13:26:07,236 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 13:26:07,237 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 13:26:07,239 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 13:26:07,242 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 13:26:07,243 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 13:26:07,245 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 13:26:07,247 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 13:26:07,251 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 13:26:07,254 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 13:26:07,256 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 13:26:07,258 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 13:26:07,259 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 13:26:07,264 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 13:26:07,265 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 13:26:07,265 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 13:26:07,267 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 13:26:07,268 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 13:26:07,269 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 13:26:07,270 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 13:26:07,271 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 13:26:07,275 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 13:26:07,276 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 13:26:07,284 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 13:26:07,284 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 13:26:07,285 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 13:26:07,286 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 13:26:07,286 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 13:26:07,287 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 13:26:07,288 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 13:26:07,294 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5f660-dd99-4688-aff2-012d21006393/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-19 13:26:07,346 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 13:26:07,347 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 13:26:07,348 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 13:26:07,348 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 13:26:07,348 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-19 13:26:07,349 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-19 13:26:07,349 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-19 13:26:07,349 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-19 13:26:07,349 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-19 13:26:07,350 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-19 13:26:07,351 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 13:26:07,351 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 13:26:07,351 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-19 13:26:07,352 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 13:26:07,352 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-19 13:26:07,352 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-19 13:26:07,352 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-19 13:26:07,353 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-19 13:26:07,353 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 13:26:07,353 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 13:26:07,353 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-19 13:26:07,354 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 13:26:07,354 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-19 13:26:07,354 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 13:26:07,355 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 13:26:07,355 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 13:26:07,355 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 13:26:07,355 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-19 13:26:07,356 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-19 13:26:07,356 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-19 13:26:07,356 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-19 13:26:07,356 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 13:26:07,357 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-19 13:26:07,357 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_0cb5f660-dd99-4688-aff2-012d21006393/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5f660-dd99-4688-aff2-012d21006393/bin/utaipan-UbGMyvGFUs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 75b1aed7e7cb1bec6496160634d456a50c33979e7f90c34d568c6a02281e03b1 [2021-11-19 13:26:07,810 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 13:26:07,843 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 13:26:07,847 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 13:26:07,848 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 13:26:07,849 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 13:26:07,851 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5f660-dd99-4688-aff2-012d21006393/bin/utaipan-UbGMyvGFUs/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-irda-vlsi_ir.cil.i [2021-11-19 13:26:07,927 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5f660-dd99-4688-aff2-012d21006393/bin/utaipan-UbGMyvGFUs/data/12ded6316/61ba8f760f26477babeb3cffc273d1e1/FLAGd0e2c1f94 [2021-11-19 13:26:09,265 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 13:26:09,267 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5f660-dd99-4688-aff2-012d21006393/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-irda-vlsi_ir.cil.i [2021-11-19 13:26:09,366 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5f660-dd99-4688-aff2-012d21006393/bin/utaipan-UbGMyvGFUs/data/12ded6316/61ba8f760f26477babeb3cffc273d1e1/FLAGd0e2c1f94 [2021-11-19 13:26:09,485 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5f660-dd99-4688-aff2-012d21006393/bin/utaipan-UbGMyvGFUs/data/12ded6316/61ba8f760f26477babeb3cffc273d1e1 [2021-11-19 13:26:09,488 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 13:26:09,490 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 13:26:09,492 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 13:26:09,492 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 13:26:09,502 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 13:26:09,503 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 01:26:09" (1/1) ... [2021-11-19 13:26:09,505 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e46d476 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:26:09, skipping insertion in model container [2021-11-19 13:26:09,506 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 01:26:09" (1/1) ... [2021-11-19 13:26:09,515 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 13:26:09,784 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 13:26:13,879 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_0cb5f660-dd99-4688-aff2-012d21006393/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-irda-vlsi_ir.cil.i[347848,347861] [2021-11-19 13:26:13,882 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_0cb5f660-dd99-4688-aff2-012d21006393/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-irda-vlsi_ir.cil.i[348017,348030] [2021-11-19 13:26:13,883 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_0cb5f660-dd99-4688-aff2-012d21006393/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-irda-vlsi_ir.cil.i[348184,348197] [2021-11-19 13:26:13,884 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_0cb5f660-dd99-4688-aff2-012d21006393/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-irda-vlsi_ir.cil.i[348352,348365] [2021-11-19 13:26:13,925 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 13:26:13,983 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-19 13:26:14,116 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 13:26:14,556 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_0cb5f660-dd99-4688-aff2-012d21006393/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-irda-vlsi_ir.cil.i[347848,347861] [2021-11-19 13:26:14,557 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_0cb5f660-dd99-4688-aff2-012d21006393/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-irda-vlsi_ir.cil.i[348017,348030] [2021-11-19 13:26:14,558 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_0cb5f660-dd99-4688-aff2-012d21006393/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-irda-vlsi_ir.cil.i[348184,348197] [2021-11-19 13:26:14,558 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_0cb5f660-dd99-4688-aff2-012d21006393/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-irda-vlsi_ir.cil.i[348352,348365] [2021-11-19 13:26:14,575 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 13:26:14,608 INFO L203 MainTranslator]: Completed pre-run [2021-11-19 13:26:15,204 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_0cb5f660-dd99-4688-aff2-012d21006393/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-irda-vlsi_ir.cil.i[347848,347861] [2021-11-19 13:26:15,205 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_0cb5f660-dd99-4688-aff2-012d21006393/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-irda-vlsi_ir.cil.i[348017,348030] [2021-11-19 13:26:15,206 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_0cb5f660-dd99-4688-aff2-012d21006393/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-irda-vlsi_ir.cil.i[348184,348197] [2021-11-19 13:26:15,206 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_0cb5f660-dd99-4688-aff2-012d21006393/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-irda-vlsi_ir.cil.i[348352,348365] [2021-11-19 13:26:15,220 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 13:26:15,502 INFO L208 MainTranslator]: Completed translation [2021-11-19 13:26:15,503 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:26:15 WrapperNode [2021-11-19 13:26:15,503 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 13:26:15,509 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-19 13:26:15,510 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-19 13:26:15,510 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-19 13:26:15,519 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:26:15" (1/1) ... [2021-11-19 13:26:15,683 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:26:15" (1/1) ... [2021-11-19 13:26:15,925 INFO L137 Inliner]: procedures = 465, calls = 2209, calls flagged for inlining = 206, calls inlined = 184, statements flattened = 4930 [2021-11-19 13:26:15,925 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-19 13:26:15,929 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-19 13:26:15,929 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-19 13:26:15,929 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-19 13:26:15,947 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:26:15" (1/1) ... [2021-11-19 13:26:15,950 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:26:15" (1/1) ... [2021-11-19 13:26:16,024 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:26:15" (1/1) ... [2021-11-19 13:26:16,038 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:26:15" (1/1) ... [2021-11-19 13:26:16,228 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:26:15" (1/1) ... [2021-11-19 13:26:16,273 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:26:15" (1/1) ... [2021-11-19 13:26:16,319 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:26:15" (1/1) ... [2021-11-19 13:26:16,358 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-19 13:26:16,359 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-19 13:26:16,360 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-19 13:26:16,360 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-19 13:26:16,361 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:26:15" (1/1) ... [2021-11-19 13:26:16,370 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 13:26:16,448 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5f660-dd99-4688-aff2-012d21006393/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 13:26:16,489 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5f660-dd99-4688-aff2-012d21006393/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-19 13:26:16,508 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5f660-dd99-4688-aff2-012d21006393/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-19 13:26:16,570 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2021-11-19 13:26:16,571 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2021-11-19 13:26:16,571 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2021-11-19 13:26:16,571 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2021-11-19 13:26:16,571 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-19 13:26:16,571 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-19 13:26:16,572 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-11-19 13:26:16,572 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-11-19 13:26:16,572 INFO L130 BoogieDeclarations]: Found specification of procedure rd_get_count [2021-11-19 13:26:16,572 INFO L138 BoogieDeclarations]: Found implementation of procedure rd_get_count [2021-11-19 13:26:16,572 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-19 13:26:16,573 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-19 13:26:16,573 INFO L130 BoogieDeclarations]: Found specification of procedure rd_set_status [2021-11-19 13:26:16,573 INFO L138 BoogieDeclarations]: Found implementation of procedure rd_set_status [2021-11-19 13:26:16,574 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2021-11-19 13:26:16,574 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2021-11-19 13:26:16,574 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_sync_single_for_cpu [2021-11-19 13:26:16,574 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_sync_single_for_cpu [2021-11-19 13:26:16,574 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-11-19 13:26:16,575 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-11-19 13:26:16,575 INFO L130 BoogieDeclarations]: Found specification of procedure vlsi_ring_debug [2021-11-19 13:26:16,575 INFO L138 BoogieDeclarations]: Found implementation of procedure vlsi_ring_debug [2021-11-19 13:26:16,575 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-11-19 13:26:16,575 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-11-19 13:26:16,576 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_65 [2021-11-19 13:26:16,576 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_65 [2021-11-19 13:26:16,577 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2021-11-19 13:26:16,577 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2021-11-19 13:26:16,577 INFO L130 BoogieDeclarations]: Found specification of procedure vlsi_close [2021-11-19 13:26:16,578 INFO L138 BoogieDeclarations]: Found implementation of procedure vlsi_close [2021-11-19 13:26:16,578 INFO L130 BoogieDeclarations]: Found specification of procedure vlsi_irda_resume [2021-11-19 13:26:16,578 INFO L138 BoogieDeclarations]: Found implementation of procedure vlsi_irda_resume [2021-11-19 13:26:16,579 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2021-11-19 13:26:16,579 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2021-11-19 13:26:16,579 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-19 13:26:16,579 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-19 13:26:16,579 INFO L130 BoogieDeclarations]: Found specification of procedure remove_proc_entry [2021-11-19 13:26:16,580 INFO L138 BoogieDeclarations]: Found implementation of procedure remove_proc_entry [2021-11-19 13:26:16,580 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-19 13:26:16,580 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-19 13:26:16,580 INFO L130 BoogieDeclarations]: Found specification of procedure vlsi_free_ring [2021-11-19 13:26:16,581 INFO L138 BoogieDeclarations]: Found implementation of procedure vlsi_free_ring [2021-11-19 13:26:16,582 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2021-11-19 13:26:16,583 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2021-11-19 13:26:16,583 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-19 13:26:16,584 INFO L130 BoogieDeclarations]: Found specification of procedure netif_queue_stopped [2021-11-19 13:26:16,584 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_queue_stopped [2021-11-19 13:26:16,584 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-19 13:26:16,584 INFO L130 BoogieDeclarations]: Found specification of procedure capable [2021-11-19 13:26:16,584 INFO L138 BoogieDeclarations]: Found implementation of procedure capable [2021-11-19 13:26:16,585 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-19 13:26:16,585 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-19 13:26:16,586 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2021-11-19 13:26:16,586 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2021-11-19 13:26:16,586 INFO L130 BoogieDeclarations]: Found specification of procedure vlsi_tx_timeout [2021-11-19 13:26:16,586 INFO L138 BoogieDeclarations]: Found implementation of procedure vlsi_tx_timeout [2021-11-19 13:26:16,587 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-11-19 13:26:16,587 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-11-19 13:26:16,587 INFO L130 BoogieDeclarations]: Found specification of procedure vlsi_destroy_hwif [2021-11-19 13:26:16,588 INFO L138 BoogieDeclarations]: Found implementation of procedure vlsi_destroy_hwif [2021-11-19 13:26:16,588 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-11-19 13:26:16,589 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-11-19 13:26:16,589 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-19 13:26:16,589 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-19 13:26:16,589 INFO L130 BoogieDeclarations]: Found specification of procedure vlsi_stop_hw [2021-11-19 13:26:16,589 INFO L138 BoogieDeclarations]: Found implementation of procedure vlsi_stop_hw [2021-11-19 13:26:16,590 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-11-19 13:26:16,590 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-11-19 13:26:16,590 INFO L130 BoogieDeclarations]: Found specification of procedure vlsi_irda_remove [2021-11-19 13:26:16,590 INFO L138 BoogieDeclarations]: Found implementation of procedure vlsi_irda_remove [2021-11-19 13:26:16,590 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-19 13:26:16,591 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-19 13:26:16,591 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-11-19 13:26:16,591 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-11-19 13:26:16,591 INFO L130 BoogieDeclarations]: Found specification of procedure pci_choose_state [2021-11-19 13:26:16,592 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_choose_state [2021-11-19 13:26:16,592 INFO L130 BoogieDeclarations]: Found specification of procedure vlsi_clear_regs [2021-11-19 13:26:16,593 INFO L138 BoogieDeclarations]: Found implementation of procedure vlsi_clear_regs [2021-11-19 13:26:16,593 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-11-19 13:26:16,593 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-11-19 13:26:16,593 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_dma_mask [2021-11-19 13:26:16,594 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_dma_mask [2021-11-19 13:26:16,595 INFO L130 BoogieDeclarations]: Found specification of procedure vlsi_start_hw [2021-11-19 13:26:16,595 INFO L138 BoogieDeclarations]: Found implementation of procedure vlsi_start_hw [2021-11-19 13:26:16,595 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2021-11-19 13:26:16,595 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2021-11-19 13:26:16,595 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-11-19 13:26:16,596 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-11-19 13:26:16,596 INFO L130 BoogieDeclarations]: Found specification of procedure rd_activate [2021-11-19 13:26:16,596 INFO L138 BoogieDeclarations]: Found implementation of procedure rd_activate [2021-11-19 13:26:16,596 INFO L130 BoogieDeclarations]: Found specification of procedure rd_is_active [2021-11-19 13:26:16,596 INFO L138 BoogieDeclarations]: Found implementation of procedure rd_is_active [2021-11-19 13:26:16,597 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2021-11-19 13:26:16,597 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2021-11-19 13:26:16,597 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-19 13:26:16,597 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2021-11-19 13:26:16,597 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2021-11-19 13:26:16,598 INFO L130 BoogieDeclarations]: Found specification of procedure rd_set_count [2021-11-19 13:26:16,598 INFO L138 BoogieDeclarations]: Found implementation of procedure rd_set_count [2021-11-19 13:26:16,598 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2021-11-19 13:26:16,599 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2021-11-19 13:26:16,599 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-19 13:26:16,600 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-19 13:26:16,601 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-19 13:26:16,604 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-11-19 13:26:16,604 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-11-19 13:26:16,604 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-19 13:26:16,605 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-19 13:26:16,605 INFO L130 BoogieDeclarations]: Found specification of procedure vlsi_open [2021-11-19 13:26:16,606 INFO L138 BoogieDeclarations]: Found implementation of procedure vlsi_open [2021-11-19 13:26:16,607 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2021-11-19 13:26:16,607 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2021-11-19 13:26:16,608 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-19 13:26:16,614 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-19 13:26:16,615 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-11-19 13:26:16,615 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_vlsi_mod_exit_11_2 [2021-11-19 13:26:16,615 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_vlsi_mod_exit_11_2 [2021-11-19 13:26:16,615 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2021-11-19 13:26:16,615 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2021-11-19 13:26:16,616 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-11-19 13:26:16,616 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-11-19 13:26:16,616 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2021-11-19 13:26:16,616 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2021-11-19 13:26:16,616 INFO L130 BoogieDeclarations]: Found specification of procedure vlsi_reg_debug [2021-11-19 13:26:16,617 INFO L138 BoogieDeclarations]: Found implementation of procedure vlsi_reg_debug [2021-11-19 13:26:16,617 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2021-11-19 13:26:16,617 INFO L130 BoogieDeclarations]: Found specification of procedure vlsi_set_baud [2021-11-19 13:26:16,617 INFO L138 BoogieDeclarations]: Found implementation of procedure vlsi_set_baud [2021-11-19 13:26:16,617 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-19 13:26:16,617 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-19 13:26:16,618 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-19 13:26:16,618 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-19 13:26:16,618 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-19 13:26:16,618 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-19 13:26:16,618 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2021-11-19 13:26:16,618 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-19 13:26:16,619 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-19 13:26:16,619 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-19 13:26:16,619 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-11-19 13:26:16,619 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-11-19 13:26:16,619 INFO L130 BoogieDeclarations]: Found specification of procedure seq_read [2021-11-19 13:26:16,619 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_read [2021-11-19 13:26:16,620 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_byte [2021-11-19 13:26:16,620 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_byte [2021-11-19 13:26:16,620 INFO L130 BoogieDeclarations]: Found specification of procedure rd_get_status [2021-11-19 13:26:16,620 INFO L138 BoogieDeclarations]: Found implementation of procedure rd_get_status [2021-11-19 13:26:16,620 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-11-19 13:26:16,621 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-11-19 13:26:16,621 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2021-11-19 13:26:16,621 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2021-11-19 13:26:16,621 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-19 13:26:16,621 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-19 13:26:16,621 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-11-19 13:26:16,622 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-11-19 13:26:16,622 INFO L130 BoogieDeclarations]: Found specification of procedure ring_get [2021-11-19 13:26:16,622 INFO L138 BoogieDeclarations]: Found implementation of procedure ring_get [2021-11-19 13:26:16,622 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2021-11-19 13:26:16,622 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2021-11-19 13:26:16,622 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-19 13:26:16,623 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2021-11-19 13:26:16,623 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2021-11-19 13:26:16,623 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-19 13:26:16,623 INFO L130 BoogieDeclarations]: Found specification of procedure ring_last [2021-11-19 13:26:16,623 INFO L138 BoogieDeclarations]: Found implementation of procedure ring_last [2021-11-19 13:26:16,624 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-19 13:26:16,624 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-19 13:26:16,624 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2021-11-19 13:26:16,624 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-19 13:26:16,624 INFO L130 BoogieDeclarations]: Found specification of procedure ring_put [2021-11-19 13:26:16,624 INFO L138 BoogieDeclarations]: Found implementation of procedure ring_put [2021-11-19 13:26:16,625 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-19 13:26:16,625 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_byte [2021-11-19 13:26:16,625 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_byte [2021-11-19 13:26:16,625 INFO L130 BoogieDeclarations]: Found specification of procedure do_gettimeofday [2021-11-19 13:26:16,625 INFO L138 BoogieDeclarations]: Found implementation of procedure do_gettimeofday [2021-11-19 13:26:16,625 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~C_ULONG~X~C_INT~TO~VOID [2021-11-19 13:26:16,626 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~C_ULONG~X~C_INT~TO~VOID [2021-11-19 13:26:16,626 INFO L130 BoogieDeclarations]: Found specification of procedure outw [2021-11-19 13:26:16,626 INFO L138 BoogieDeclarations]: Found implementation of procedure outw [2021-11-19 13:26:16,626 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2021-11-19 13:26:16,626 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2021-11-19 13:26:16,627 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-11-19 13:26:16,627 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-11-19 13:26:16,627 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2021-11-19 13:26:16,627 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2021-11-19 13:26:16,627 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-19 13:26:16,627 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-19 13:26:16,628 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2021-11-19 13:26:16,628 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2021-11-19 13:26:16,628 INFO L130 BoogieDeclarations]: Found specification of procedure rd_set_addr_status [2021-11-19 13:26:16,628 INFO L138 BoogieDeclarations]: Found implementation of procedure rd_set_addr_status [2021-11-19 13:26:16,628 INFO L130 BoogieDeclarations]: Found specification of procedure rd_get_addr [2021-11-19 13:26:16,628 INFO L138 BoogieDeclarations]: Found implementation of procedure rd_get_addr [2021-11-19 13:26:16,629 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2021-11-19 13:26:16,629 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2021-11-19 13:26:16,629 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-11-19 13:26:16,629 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-11-19 13:26:16,629 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-11-19 13:26:16,630 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-11-19 13:26:16,630 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-19 13:26:16,630 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-19 13:26:16,630 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-11-19 13:26:16,630 INFO L130 BoogieDeclarations]: Found specification of procedure net_ratelimit [2021-11-19 13:26:16,630 INFO L138 BoogieDeclarations]: Found implementation of procedure net_ratelimit [2021-11-19 13:26:16,631 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2021-11-19 13:26:16,631 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2021-11-19 13:26:16,631 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2021-11-19 13:26:16,631 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-19 13:26:16,631 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-19 13:26:16,631 INFO L130 BoogieDeclarations]: Found specification of procedure irlap_close [2021-11-19 13:26:16,632 INFO L138 BoogieDeclarations]: Found implementation of procedure irlap_close [2021-11-19 13:26:16,632 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2021-11-19 13:26:16,632 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2021-11-19 13:26:16,632 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2021-11-19 13:26:16,632 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2021-11-19 13:26:16,632 INFO L130 BoogieDeclarations]: Found specification of procedure vlsi_process_tx [2021-11-19 13:26:16,633 INFO L138 BoogieDeclarations]: Found implementation of procedure vlsi_process_tx [2021-11-19 13:26:16,633 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-19 13:26:16,633 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-19 13:26:16,633 INFO L130 BoogieDeclarations]: Found specification of procedure vlsi_alloc_ring [2021-11-19 13:26:16,633 INFO L138 BoogieDeclarations]: Found implementation of procedure vlsi_alloc_ring [2021-11-19 13:26:16,634 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_vlsi_irda_dev [2021-11-19 13:26:16,634 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_vlsi_irda_dev [2021-11-19 13:26:16,634 INFO L130 BoogieDeclarations]: Found specification of procedure vlsi_fill_rx [2021-11-19 13:26:16,634 INFO L138 BoogieDeclarations]: Found implementation of procedure vlsi_fill_rx [2021-11-19 13:26:16,634 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2021-11-19 13:26:16,634 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2021-11-19 13:26:16,635 INFO L130 BoogieDeclarations]: Found specification of procedure vlsi_process_rx [2021-11-19 13:26:16,635 INFO L138 BoogieDeclarations]: Found implementation of procedure vlsi_process_rx [2021-11-19 13:26:16,635 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2021-11-19 13:26:16,636 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2021-11-19 13:26:16,641 INFO L130 BoogieDeclarations]: Found specification of procedure inw [2021-11-19 13:26:16,641 INFO L138 BoogieDeclarations]: Found implementation of procedure inw [2021-11-19 13:26:16,641 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-11-19 13:26:16,641 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-11-19 13:26:16,642 INFO L130 BoogieDeclarations]: Found specification of procedure ring_first [2021-11-19 13:26:16,642 INFO L138 BoogieDeclarations]: Found implementation of procedure ring_first [2021-11-19 13:26:16,642 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_sync_single_for_device [2021-11-19 13:26:16,642 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_sync_single_for_device [2021-11-19 13:26:17,706 INFO L236 CfgBuilder]: Building ICFG [2021-11-19 13:26:17,716 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-19 13:26:20,687 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-19 13:26:44,825 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-19 13:26:44,883 INFO L277 CfgBuilder]: Performing block encoding [2021-11-19 13:26:44,912 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-19 13:26:44,912 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-19 13:26:44,917 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 01:26:44 BoogieIcfgContainer [2021-11-19 13:26:44,917 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-19 13:26:44,919 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-19 13:26:44,919 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-19 13:26:44,922 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-19 13:26:44,922 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 01:26:09" (1/3) ... [2021-11-19 13:26:44,923 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68e0b35c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 01:26:44, skipping insertion in model container [2021-11-19 13:26:44,923 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:26:15" (2/3) ... [2021-11-19 13:26:44,923 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68e0b35c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 01:26:44, skipping insertion in model container [2021-11-19 13:26:44,923 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 01:26:44" (3/3) ... [2021-11-19 13:26:44,925 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-irda-vlsi_ir.cil.i [2021-11-19 13:26:44,930 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-19 13:26:44,930 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-11-19 13:26:44,987 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-19 13:26:44,993 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 13:26:44,993 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-11-19 13:26:45,055 INFO L276 IsEmpty]: Start isEmpty. Operand has 1886 states, 1268 states have (on average 1.2854889589905363) internal successors, (1630), 1294 states have internal predecessors, (1630), 512 states have call successors, (512), 104 states have call predecessors, (512), 103 states have return successors, (505), 502 states have call predecessors, (505), 505 states have call successors, (505) [2021-11-19 13:26:45,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2021-11-19 13:26:45,073 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:26:45,074 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:26:45,074 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 13:26:45,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:26:45,080 INFO L85 PathProgramCache]: Analyzing trace with hash -2147203978, now seen corresponding path program 1 times [2021-11-19 13:26:45,097 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:26:45,097 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [502666661] [2021-11-19 13:26:45,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:26:45,098 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:26:45,098 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5f660-dd99-4688-aff2-012d21006393/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:26:45,105 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5f660-dd99-4688-aff2-012d21006393/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:26:45,145 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5f660-dd99-4688-aff2-012d21006393/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-19 13:26:46,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:26:46,409 INFO L263 TraceCheckSpWp]: Trace formula consists of 1484 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 13:26:46,420 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:26:46,928 INFO L134 CoverageAnalysis]: Checked inductivity of 528 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 495 trivial. 0 not checked. [2021-11-19 13:26:46,928 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:26:47,491 INFO L134 CoverageAnalysis]: Checked inductivity of 528 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 528 trivial. 0 not checked. [2021-11-19 13:26:47,492 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:26:47,492 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [502666661] [2021-11-19 13:26:47,493 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [502666661] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:26:47,493 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:26:47,493 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-19 13:26:47,495 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [714511056] [2021-11-19 13:26:47,497 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:26:47,505 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 13:26:47,505 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:26:47,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 13:26:47,543 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 13:26:47,550 INFO L87 Difference]: Start difference. First operand has 1886 states, 1268 states have (on average 1.2854889589905363) internal successors, (1630), 1294 states have internal predecessors, (1630), 512 states have call successors, (512), 104 states have call predecessors, (512), 103 states have return successors, (505), 502 states have call predecessors, (505), 505 states have call successors, (505) Second operand has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 4 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) [2021-11-19 13:26:49,698 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 13:26:55,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:26:55,163 INFO L93 Difference]: Finished difference Result 7240 states and 10348 transitions. [2021-11-19 13:26:55,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 13:26:55,165 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 4 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) Word has length 149 [2021-11-19 13:26:55,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:26:55,238 INFO L225 Difference]: With dead ends: 7240 [2021-11-19 13:26:55,239 INFO L226 Difference]: Without dead ends: 5362 [2021-11-19 13:26:55,261 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 296 GetRequests, 294 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 13:26:55,265 INFO L933 BasicCegarLoop]: 3583 mSDtfsCounter, 5010 mSDsluCounter, 6427 mSDsCounter, 0 mSdLazyCounter, 1040 mSolverCounterSat, 20 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5010 SdHoareTripleChecker+Valid, 10010 SdHoareTripleChecker+Invalid, 1061 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 1040 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.0s IncrementalHoareTripleChecker+Time [2021-11-19 13:26:55,266 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5010 Valid, 10010 Invalid, 1061 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [20 Valid, 1040 Invalid, 1 Unknown, 0 Unchecked, 7.0s Time] [2021-11-19 13:26:55,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5362 states. [2021-11-19 13:26:55,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5362 to 5335. [2021-11-19 13:26:55,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5335 states, 3613 states have (on average 1.275117630777747) internal successors, (4607), 3683 states have internal predecessors, (4607), 1417 states have call successors, (1417), 303 states have call predecessors, (1417), 302 states have return successors, (1413), 1404 states have call predecessors, (1413), 1413 states have call successors, (1413) [2021-11-19 13:26:55,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5335 states to 5335 states and 7437 transitions. [2021-11-19 13:26:55,781 INFO L78 Accepts]: Start accepts. Automaton has 5335 states and 7437 transitions. Word has length 149 [2021-11-19 13:26:55,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:26:55,786 INFO L470 AbstractCegarLoop]: Abstraction has 5335 states and 7437 transitions. [2021-11-19 13:26:55,787 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 4 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) [2021-11-19 13:26:55,787 INFO L276 IsEmpty]: Start isEmpty. Operand 5335 states and 7437 transitions. [2021-11-19 13:26:55,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2021-11-19 13:26:55,799 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:26:55,800 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:26:55,839 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5f660-dd99-4688-aff2-012d21006393/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-19 13:26:56,023 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5f660-dd99-4688-aff2-012d21006393/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:26:56,023 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 13:26:56,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:26:56,024 INFO L85 PathProgramCache]: Analyzing trace with hash -1243014584, now seen corresponding path program 1 times [2021-11-19 13:26:56,025 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:26:56,026 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1910472319] [2021-11-19 13:26:56,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:26:56,026 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:26:56,026 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5f660-dd99-4688-aff2-012d21006393/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:26:56,030 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5f660-dd99-4688-aff2-012d21006393/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:26:56,076 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5f660-dd99-4688-aff2-012d21006393/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-19 13:26:57,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:26:57,186 INFO L263 TraceCheckSpWp]: Trace formula consists of 1517 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 13:26:57,193 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:26:57,596 INFO L134 CoverageAnalysis]: Checked inductivity of 528 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 495 trivial. 0 not checked. [2021-11-19 13:26:57,597 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:26:58,048 INFO L134 CoverageAnalysis]: Checked inductivity of 528 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 528 trivial. 0 not checked. [2021-11-19 13:26:58,049 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:26:58,049 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1910472319] [2021-11-19 13:26:58,049 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1910472319] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:26:58,049 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:26:58,050 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-19 13:26:58,050 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1226062236] [2021-11-19 13:26:58,050 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:26:58,053 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 13:26:58,054 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:26:58,054 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 13:26:58,054 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 13:26:58,055 INFO L87 Difference]: Start difference. First operand 5335 states and 7437 transitions. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 4 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) [2021-11-19 13:27:00,207 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 13:27:07,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:27:07,195 INFO L93 Difference]: Finished difference Result 20299 states and 28223 transitions. [2021-11-19 13:27:07,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 13:27:07,196 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 4 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) Word has length 150 [2021-11-19 13:27:07,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:27:07,361 INFO L225 Difference]: With dead ends: 20299 [2021-11-19 13:27:07,361 INFO L226 Difference]: Without dead ends: 14991 [2021-11-19 13:27:07,403 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 298 GetRequests, 296 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 13:27:07,404 INFO L933 BasicCegarLoop]: 3753 mSDtfsCounter, 6186 mSDsluCounter, 3947 mSDsCounter, 0 mSdLazyCounter, 930 mSolverCounterSat, 934 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6186 SdHoareTripleChecker+Valid, 7700 SdHoareTripleChecker+Invalid, 1865 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 934 IncrementalHoareTripleChecker+Valid, 930 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.3s IncrementalHoareTripleChecker+Time [2021-11-19 13:27:07,405 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6186 Valid, 7700 Invalid, 1865 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [934 Valid, 930 Invalid, 1 Unknown, 0 Unchecked, 8.3s Time] [2021-11-19 13:27:07,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14991 states. [2021-11-19 13:27:08,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14991 to 14927. [2021-11-19 13:27:08,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14927 states, 10137 states have (on average 1.270888823123212) internal successors, (12883), 10349 states have internal predecessors, (12883), 3903 states have call successors, (3903), 897 states have call predecessors, (3903), 884 states have return successors, (3941), 3836 states have call predecessors, (3941), 3899 states have call successors, (3941) [2021-11-19 13:27:08,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14927 states to 14927 states and 20727 transitions. [2021-11-19 13:27:08,589 INFO L78 Accepts]: Start accepts. Automaton has 14927 states and 20727 transitions. Word has length 150 [2021-11-19 13:27:08,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:27:08,591 INFO L470 AbstractCegarLoop]: Abstraction has 14927 states and 20727 transitions. [2021-11-19 13:27:08,592 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 4 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) [2021-11-19 13:27:08,593 INFO L276 IsEmpty]: Start isEmpty. Operand 14927 states and 20727 transitions. [2021-11-19 13:27:08,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2021-11-19 13:27:08,599 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:27:08,599 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:27:08,632 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5f660-dd99-4688-aff2-012d21006393/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-19 13:27:08,814 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5f660-dd99-4688-aff2-012d21006393/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:27:08,815 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 13:27:08,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:27:08,815 INFO L85 PathProgramCache]: Analyzing trace with hash 645334117, now seen corresponding path program 1 times [2021-11-19 13:27:08,817 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:27:08,817 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [82539004] [2021-11-19 13:27:08,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:27:08,818 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:27:08,818 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5f660-dd99-4688-aff2-012d21006393/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:27:08,820 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5f660-dd99-4688-aff2-012d21006393/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:27:08,870 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5f660-dd99-4688-aff2-012d21006393/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-19 13:27:09,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:27:09,963 INFO L263 TraceCheckSpWp]: Trace formula consists of 1535 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 13:27:09,969 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:27:10,397 INFO L134 CoverageAnalysis]: Checked inductivity of 528 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 495 trivial. 0 not checked. [2021-11-19 13:27:10,397 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:27:10,854 INFO L134 CoverageAnalysis]: Checked inductivity of 528 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 528 trivial. 0 not checked. [2021-11-19 13:27:10,854 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:27:10,854 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [82539004] [2021-11-19 13:27:10,855 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [82539004] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:27:10,855 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:27:10,855 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-19 13:27:10,857 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1343857279] [2021-11-19 13:27:10,857 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:27:10,858 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 13:27:10,858 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:27:10,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 13:27:10,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 13:27:10,862 INFO L87 Difference]: Start difference. First operand 14927 states and 20727 transitions. Second operand has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 4 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) [2021-11-19 13:27:13,003 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 13:27:18,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:27:18,660 INFO L93 Difference]: Finished difference Result 56597 states and 78122 transitions. [2021-11-19 13:27:18,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 13:27:18,661 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 4 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) Word has length 158 [2021-11-19 13:27:18,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:27:18,927 INFO L225 Difference]: With dead ends: 56597 [2021-11-19 13:27:18,927 INFO L226 Difference]: Without dead ends: 41697 [2021-11-19 13:27:19,014 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 314 GetRequests, 312 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 13:27:19,015 INFO L933 BasicCegarLoop]: 3487 mSDtfsCounter, 4824 mSDsluCounter, 4911 mSDsCounter, 0 mSdLazyCounter, 1015 mSolverCounterSat, 22 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4824 SdHoareTripleChecker+Valid, 8398 SdHoareTripleChecker+Invalid, 1038 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 1015 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2021-11-19 13:27:19,016 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4824 Valid, 8398 Invalid, 1038 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 1015 Invalid, 1 Unknown, 0 Unchecked, 6.3s Time] [2021-11-19 13:27:19,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41697 states. [2021-11-19 13:27:20,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41697 to 41621. [2021-11-19 13:27:20,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41621 states, 28263 states have (on average 1.2621094717475143) internal successors, (35671), 28799 states have internal predecessors, (35671), 10737 states have call successors, (10737), 2655 states have call predecessors, (10737), 2618 states have return successors, (10877), 10514 states have call predecessors, (10877), 10733 states have call successors, (10877) [2021-11-19 13:27:21,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41621 states to 41621 states and 57285 transitions. [2021-11-19 13:27:21,446 INFO L78 Accepts]: Start accepts. Automaton has 41621 states and 57285 transitions. Word has length 158 [2021-11-19 13:27:21,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:27:21,464 INFO L470 AbstractCegarLoop]: Abstraction has 41621 states and 57285 transitions. [2021-11-19 13:27:21,464 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 4 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) [2021-11-19 13:27:21,464 INFO L276 IsEmpty]: Start isEmpty. Operand 41621 states and 57285 transitions. [2021-11-19 13:27:21,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2021-11-19 13:27:21,473 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:27:21,473 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 11, 11, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:27:21,537 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5f660-dd99-4688-aff2-012d21006393/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-19 13:27:21,674 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5f660-dd99-4688-aff2-012d21006393/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:27:21,674 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-19 13:27:21,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:27:21,675 INFO L85 PathProgramCache]: Analyzing trace with hash -1435841413, now seen corresponding path program 1 times [2021-11-19 13:27:21,677 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:27:21,677 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [758390313] [2021-11-19 13:27:21,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:27:21,677 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:27:21,677 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5f660-dd99-4688-aff2-012d21006393/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:27:21,678 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5f660-dd99-4688-aff2-012d21006393/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:27:21,679 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5f660-dd99-4688-aff2-012d21006393/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-19 13:27:22,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:27:22,921 INFO L263 TraceCheckSpWp]: Trace formula consists of 1685 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 13:27:22,928 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:27:23,566 INFO L134 CoverageAnalysis]: Checked inductivity of 531 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 498 trivial. 0 not checked. [2021-11-19 13:27:23,566 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:27:24,137 INFO L134 CoverageAnalysis]: Checked inductivity of 531 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 531 trivial. 0 not checked. [2021-11-19 13:27:24,137 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:27:24,137 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [758390313] [2021-11-19 13:27:24,137 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [758390313] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:27:24,137 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:27:24,138 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-19 13:27:24,138 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1375252055] [2021-11-19 13:27:24,138 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:27:24,138 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 13:27:24,139 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:27:24,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 13:27:24,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 13:27:24,139 INFO L87 Difference]: Start difference. First operand 41621 states and 57285 transitions. Second operand has 4 states, 4 states have (on average 27.0) internal successors, (108), 4 states have internal predecessors, (108), 4 states have call successors, (35), 3 states have call predecessors, (35), 3 states have return successors, (30), 4 states have call predecessors, (30), 4 states have call successors, (30) [2021-11-19 13:27:26,281 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 13:27:32,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:27:32,468 INFO L93 Difference]: Finished difference Result 100560 states and 137794 transitions. [2021-11-19 13:27:32,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 13:27:32,469 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.0) internal successors, (108), 4 states have internal predecessors, (108), 4 states have call successors, (35), 3 states have call predecessors, (35), 3 states have return successors, (30), 4 states have call predecessors, (30), 4 states have call successors, (30) Word has length 202 [2021-11-19 13:27:32,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:27:32,948 INFO L225 Difference]: With dead ends: 100560 [2021-11-19 13:27:32,948 INFO L226 Difference]: Without dead ends: 58966 [2021-11-19 13:27:33,103 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 402 GetRequests, 400 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 13:27:33,106 INFO L933 BasicCegarLoop]: 3888 mSDtfsCounter, 4159 mSDsluCounter, 4091 mSDsCounter, 0 mSdLazyCounter, 1059 mSolverCounterSat, 41 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4159 SdHoareTripleChecker+Valid, 7979 SdHoareTripleChecker+Invalid, 1101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 1059 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2021-11-19 13:27:33,108 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4159 Valid, 7979 Invalid, 1101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 1059 Invalid, 1 Unknown, 0 Unchecked, 6.2s Time] [2021-11-19 13:27:33,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58966 states. [2021-11-19 13:27:35,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58966 to 58882. [2021-11-19 13:27:36,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58882 states, 40075 states have (on average 1.264154709918902) internal successors, (50661), 40814 states have internal predecessors, (50661), 14685 states have call successors, (14685), 4186 states have call predecessors, (14685), 4119 states have return successors, (14777), 14385 states have call predecessors, (14777), 14681 states have call successors, (14777) [2021-11-19 13:27:36,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58882 states to 58882 states and 80123 transitions. [2021-11-19 13:27:36,538 INFO L78 Accepts]: Start accepts. Automaton has 58882 states and 80123 transitions. Word has length 202 [2021-11-19 13:27:36,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:27:36,539 INFO L470 AbstractCegarLoop]: Abstraction has 58882 states and 80123 transitions. [2021-11-19 13:27:36,539 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.0) internal successors, (108), 4 states have internal predecessors, (108), 4 states have call successors, (35), 3 states have call predecessors, (35), 3 states have return successors, (30), 4 states have call predecessors, (30), 4 states have call successors, (30) [2021-11-19 13:27:36,540 INFO L276 IsEmpty]: Start isEmpty. Operand 58882 states and 80123 transitions. [2021-11-19 13:27:36,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2021-11-19 13:27:36,545 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:27:36,546 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 11, 11, 11, 11, 11, 11, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:27:36,588 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5f660-dd99-4688-aff2-012d21006393/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-19 13:27:36,758 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5f660-dd99-4688-aff2-012d21006393/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:27:36,759 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 13:27:36,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:27:36,759 INFO L85 PathProgramCache]: Analyzing trace with hash -1116867753, now seen corresponding path program 1 times [2021-11-19 13:27:36,761 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:27:36,761 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1981582193] [2021-11-19 13:27:36,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:27:36,761 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:27:36,762 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5f660-dd99-4688-aff2-012d21006393/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:27:36,763 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5f660-dd99-4688-aff2-012d21006393/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:27:36,794 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5f660-dd99-4688-aff2-012d21006393/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-19 13:27:37,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:27:37,891 INFO L263 TraceCheckSpWp]: Trace formula consists of 1558 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 13:27:37,895 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:27:39,176 INFO L134 CoverageAnalysis]: Checked inductivity of 625 backedges. 90 proven. 0 refuted. 0 times theorem prover too weak. 535 trivial. 0 not checked. [2021-11-19 13:27:39,177 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:27:39,853 INFO L134 CoverageAnalysis]: Checked inductivity of 625 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 615 trivial. 0 not checked. [2021-11-19 13:27:39,853 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:27:39,853 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1981582193] [2021-11-19 13:27:39,853 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1981582193] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:27:39,854 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:27:39,854 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 3] imperfect sequences [] total 4 [2021-11-19 13:27:39,854 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [635521218] [2021-11-19 13:27:39,854 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:27:39,855 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 13:27:39,855 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:27:39,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 13:27:39,856 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 13:27:39,856 INFO L87 Difference]: Start difference. First operand 58882 states and 80123 transitions. Second operand has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 4 states have call successors, (42), 3 states have call predecessors, (42), 3 states have return successors, (40), 4 states have call predecessors, (40), 4 states have call successors, (40) [2021-11-19 13:27:49,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:27:49,440 INFO L93 Difference]: Finished difference Result 170394 states and 231997 transitions. [2021-11-19 13:27:49,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 13:27:49,441 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 4 states have call successors, (42), 3 states have call predecessors, (42), 3 states have return successors, (40), 4 states have call predecessors, (40), 4 states have call successors, (40) Word has length 198 [2021-11-19 13:27:49,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:27:50,470 INFO L225 Difference]: With dead ends: 170394 [2021-11-19 13:27:50,470 INFO L226 Difference]: Without dead ends: 111699 [2021-11-19 13:27:50,691 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 394 GetRequests, 392 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 13:27:50,692 INFO L933 BasicCegarLoop]: 3077 mSDtfsCounter, 6438 mSDsluCounter, 1568 mSDsCounter, 0 mSdLazyCounter, 1017 mSolverCounterSat, 919 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6438 SdHoareTripleChecker+Valid, 4645 SdHoareTripleChecker+Invalid, 1936 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 919 IncrementalHoareTripleChecker+Valid, 1017 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2021-11-19 13:27:50,693 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6438 Valid, 4645 Invalid, 1936 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [919 Valid, 1017 Invalid, 0 Unknown, 0 Unchecked, 5.7s Time] [2021-11-19 13:27:50,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111699 states. [2021-11-19 13:27:55,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111699 to 111673. [2021-11-19 13:27:55,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111673 states, 76316 states have (on average 1.2635620315530165) internal successors, (96430), 77738 states have internal predecessors, (96430), 27430 states have call successors, (27430), 8129 states have call predecessors, (27430), 7924 states have return successors, (27756), 26747 states have call predecessors, (27756), 27426 states have call successors, (27756) [2021-11-19 13:27:56,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111673 states to 111673 states and 151616 transitions. [2021-11-19 13:27:56,190 INFO L78 Accepts]: Start accepts. Automaton has 111673 states and 151616 transitions. Word has length 198 [2021-11-19 13:27:56,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:27:56,191 INFO L470 AbstractCegarLoop]: Abstraction has 111673 states and 151616 transitions. [2021-11-19 13:27:56,191 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 4 states have call successors, (42), 3 states have call predecessors, (42), 3 states have return successors, (40), 4 states have call predecessors, (40), 4 states have call successors, (40) [2021-11-19 13:27:56,191 INFO L276 IsEmpty]: Start isEmpty. Operand 111673 states and 151616 transitions. [2021-11-19 13:27:56,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2021-11-19 13:27:56,196 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:27:56,197 INFO L514 BasicCegarLoop]: trace histogram [16, 16, 12, 12, 12, 12, 12, 12, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:27:56,232 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5f660-dd99-4688-aff2-012d21006393/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-19 13:27:56,410 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5f660-dd99-4688-aff2-012d21006393/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:27:56,411 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 13:27:56,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:27:56,411 INFO L85 PathProgramCache]: Analyzing trace with hash -741898650, now seen corresponding path program 1 times [2021-11-19 13:27:56,413 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:27:56,413 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1419303923] [2021-11-19 13:27:56,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:27:56,413 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:27:56,414 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5f660-dd99-4688-aff2-012d21006393/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:27:56,416 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5f660-dd99-4688-aff2-012d21006393/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:27:56,456 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5f660-dd99-4688-aff2-012d21006393/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-19 13:27:57,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:27:57,547 INFO L263 TraceCheckSpWp]: Trace formula consists of 1646 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 13:27:57,550 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:27:58,436 INFO L134 CoverageAnalysis]: Checked inductivity of 790 backedges. 232 proven. 0 refuted. 0 times theorem prover too weak. 558 trivial. 0 not checked. [2021-11-19 13:27:58,437 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:27:58,960 INFO L134 CoverageAnalysis]: Checked inductivity of 790 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 780 trivial. 0 not checked. [2021-11-19 13:27:58,961 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:27:58,961 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1419303923] [2021-11-19 13:27:58,961 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1419303923] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:27:58,961 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:27:58,962 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-19 13:27:58,962 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2130362864] [2021-11-19 13:27:58,962 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:27:58,963 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 13:27:58,963 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:27:58,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 13:27:58,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 13:27:58,964 INFO L87 Difference]: Start difference. First operand 111673 states and 151616 transitions. Second operand has 4 states, 4 states have (on average 21.0) internal successors, (84), 4 states have internal predecessors, (84), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2021-11-19 13:28:03,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:28:03,619 INFO L93 Difference]: Finished difference Result 223969 states and 304331 transitions. [2021-11-19 13:28:03,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 13:28:03,620 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.0) internal successors, (84), 4 states have internal predecessors, (84), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) Word has length 221 [2021-11-19 13:28:03,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:28:04,216 INFO L225 Difference]: With dead ends: 223969 [2021-11-19 13:28:04,216 INFO L226 Difference]: Without dead ends: 112483 [2021-11-19 13:28:04,787 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 440 GetRequests, 438 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 13:28:04,788 INFO L933 BasicCegarLoop]: 2592 mSDtfsCounter, 55 mSDsluCounter, 2587 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 5179 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-19 13:28:04,789 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [57 Valid, 5179 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-19 13:28:04,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112483 states. [2021-11-19 13:28:09,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112483 to 112483. [2021-11-19 13:28:09,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112483 states, 77072 states have (on average 1.265180610338385) internal successors, (97510), 78494 states have internal predecessors, (97510), 27484 states have call successors, (27484), 8129 states have call predecessors, (27484), 7924 states have return successors, (27810), 26801 states have call predecessors, (27810), 27480 states have call successors, (27810) [2021-11-19 13:28:09,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112483 states to 112483 states and 152804 transitions. [2021-11-19 13:28:10,004 INFO L78 Accepts]: Start accepts. Automaton has 112483 states and 152804 transitions. Word has length 221 [2021-11-19 13:28:10,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:28:10,005 INFO L470 AbstractCegarLoop]: Abstraction has 112483 states and 152804 transitions. [2021-11-19 13:28:10,005 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.0) internal successors, (84), 4 states have internal predecessors, (84), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2021-11-19 13:28:10,006 INFO L276 IsEmpty]: Start isEmpty. Operand 112483 states and 152804 transitions. [2021-11-19 13:28:10,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2021-11-19 13:28:10,011 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:28:10,012 INFO L514 BasicCegarLoop]: trace histogram [16, 16, 12, 12, 12, 12, 12, 12, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:28:10,057 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5f660-dd99-4688-aff2-012d21006393/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-19 13:28:10,238 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5f660-dd99-4688-aff2-012d21006393/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:28:10,239 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 13:28:10,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:28:10,239 INFO L85 PathProgramCache]: Analyzing trace with hash -596465576, now seen corresponding path program 1 times [2021-11-19 13:28:10,241 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:28:10,241 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1239908030] [2021-11-19 13:28:10,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:28:10,241 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:28:10,241 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5f660-dd99-4688-aff2-012d21006393/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:28:10,242 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5f660-dd99-4688-aff2-012d21006393/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:28:10,244 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5f660-dd99-4688-aff2-012d21006393/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-19 13:28:11,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:28:11,370 INFO L263 TraceCheckSpWp]: Trace formula consists of 1654 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 13:28:11,377 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:28:12,812 INFO L134 CoverageAnalysis]: Checked inductivity of 796 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 796 trivial. 0 not checked. [2021-11-19 13:28:12,812 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:28:14,073 INFO L134 CoverageAnalysis]: Checked inductivity of 796 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 796 trivial. 0 not checked. [2021-11-19 13:28:14,074 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:28:14,074 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1239908030] [2021-11-19 13:28:14,074 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1239908030] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:28:14,074 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:28:14,075 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 5] imperfect sequences [] total 7 [2021-11-19 13:28:14,075 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [215430605] [2021-11-19 13:28:14,075 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:28:14,076 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-19 13:28:14,076 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:28:14,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-19 13:28:14,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-19 13:28:14,078 INFO L87 Difference]: Start difference. First operand 112483 states and 152804 transitions. Second operand has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 5 states have internal predecessors, (80), 2 states have call successors, (45), 4 states have call predecessors, (45), 2 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42)