./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-hippi-rrunner.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 63182f13 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c08719d-0168-4b7f-bca1-31d6a14a1610/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c08719d-0168-4b7f-bca1-31d6a14a1610/bin/utaipan-vmNK8stdcF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c08719d-0168-4b7f-bca1-31d6a14a1610/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c08719d-0168-4b7f-bca1-31d6a14a1610/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-hippi-rrunner.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c08719d-0168-4b7f-bca1-31d6a14a1610/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c08719d-0168-4b7f-bca1-31d6a14a1610/bin/utaipan-vmNK8stdcF --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 10193951df4eb6f67d99eaaa8758acfa57b6461ca38071389a41cbdc5c585dfb --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-12 22:52:33,057 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-12 22:52:33,060 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-12 22:52:33,112 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-12 22:52:33,113 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-12 22:52:33,118 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-12 22:52:33,121 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-12 22:52:33,125 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-12 22:52:33,128 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-12 22:52:33,135 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-12 22:52:33,136 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-12 22:52:33,137 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-12 22:52:33,138 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-12 22:52:33,141 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-12 22:52:33,143 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-12 22:52:33,148 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-12 22:52:33,149 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-12 22:52:33,150 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-12 22:52:33,152 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-12 22:52:33,155 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-12 22:52:33,157 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-12 22:52:33,161 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-12 22:52:33,167 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-12 22:52:33,168 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-12 22:52:33,177 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-12 22:52:33,178 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-12 22:52:33,178 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-12 22:52:33,179 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-12 22:52:33,180 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-12 22:52:33,181 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-12 22:52:33,181 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-12 22:52:33,182 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-12 22:52:33,182 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-12 22:52:33,183 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-12 22:52:33,184 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-12 22:52:33,184 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-12 22:52:33,185 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-12 22:52:33,185 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-12 22:52:33,185 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-12 22:52:33,186 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-12 22:52:33,186 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-12 22:52:33,187 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c08719d-0168-4b7f-bca1-31d6a14a1610/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-12 22:52:33,216 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-12 22:52:33,216 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-12 22:52:33,216 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-12 22:52:33,217 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-12 22:52:33,217 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-12 22:52:33,217 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-12 22:52:33,228 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-12 22:52:33,228 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-12 22:52:33,228 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-12 22:52:33,228 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-12 22:52:33,228 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-12 22:52:33,229 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-12 22:52:33,229 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-12 22:52:33,229 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-12 22:52:33,229 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-12 22:52:33,229 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-12 22:52:33,230 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-12 22:52:33,230 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-12 22:52:33,231 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-12 22:52:33,231 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-12 22:52:33,231 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-12 22:52:33,231 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-12 22:52:33,231 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-12 22:52:33,231 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-12 22:52:33,232 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-12 22:52:33,232 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-12 22:52:33,232 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-12 22:52:33,232 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-12 22:52:33,232 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 22:52:33,233 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-12 22:52:33,233 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-12 22:52:33,233 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-12 22:52:33,233 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-12 22:52:33,234 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-12 22:52:33,234 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-12 22:52:33,234 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-12 22:52:33,234 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-12 22:52:33,234 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_9c08719d-0168-4b7f-bca1-31d6a14a1610/bin/utaipan-vmNK8stdcF/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c08719d-0168-4b7f-bca1-31d6a14a1610/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 10193951df4eb6f67d99eaaa8758acfa57b6461ca38071389a41cbdc5c585dfb [2021-11-12 22:52:33,462 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-12 22:52:33,482 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-12 22:52:33,485 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-12 22:52:33,486 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-12 22:52:33,487 INFO L275 PluginConnector]: CDTParser initialized [2021-11-12 22:52:33,488 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c08719d-0168-4b7f-bca1-31d6a14a1610/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-hippi-rrunner.cil.i [2021-11-12 22:52:33,547 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c08719d-0168-4b7f-bca1-31d6a14a1610/bin/utaipan-vmNK8stdcF/data/6e49d7c98/7d79e22c9de046b3a81b8d1901dd8a6b/FLAGe04d0a262 [2021-11-12 22:52:34,448 INFO L306 CDTParser]: Found 1 translation units. [2021-11-12 22:52:34,449 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c08719d-0168-4b7f-bca1-31d6a14a1610/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-hippi-rrunner.cil.i [2021-11-12 22:52:34,487 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c08719d-0168-4b7f-bca1-31d6a14a1610/bin/utaipan-vmNK8stdcF/data/6e49d7c98/7d79e22c9de046b3a81b8d1901dd8a6b/FLAGe04d0a262 [2021-11-12 22:52:34,892 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c08719d-0168-4b7f-bca1-31d6a14a1610/bin/utaipan-vmNK8stdcF/data/6e49d7c98/7d79e22c9de046b3a81b8d1901dd8a6b [2021-11-12 22:52:34,894 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-12 22:52:34,895 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-12 22:52:34,896 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-12 22:52:34,896 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-12 22:52:34,902 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-12 22:52:34,903 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 10:52:34" (1/1) ... [2021-11-12 22:52:34,904 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e9aa3c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:52:34, skipping insertion in model container [2021-11-12 22:52:34,904 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 10:52:34" (1/1) ... [2021-11-12 22:52:34,911 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-12 22:52:35,086 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 22:52:38,050 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c08719d-0168-4b7f-bca1-31d6a14a1610/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-hippi-rrunner.cil.i[341176,341189] [2021-11-12 22:52:38,053 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c08719d-0168-4b7f-bca1-31d6a14a1610/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-hippi-rrunner.cil.i[341345,341358] [2021-11-12 22:52:38,053 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c08719d-0168-4b7f-bca1-31d6a14a1610/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-hippi-rrunner.cil.i[341512,341525] [2021-11-12 22:52:38,054 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c08719d-0168-4b7f-bca1-31d6a14a1610/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-hippi-rrunner.cil.i[341680,341693] [2021-11-12 22:52:38,071 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 22:52:38,111 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-11-12 22:52:38,111 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@7da91b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:52:38, skipping insertion in model container [2021-11-12 22:52:38,113 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-12 22:52:38,113 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-12 22:52:38,117 INFO L158 Benchmark]: Toolchain (without parser) took 3218.88ms. Allocated memory was 100.7MB in the beginning and 127.9MB in the end (delta: 27.3MB). Free memory was 64.3MB in the beginning and 59.7MB in the end (delta: 4.6MB). Peak memory consumption was 45.8MB. Max. memory is 16.1GB. [2021-11-12 22:52:38,118 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 100.7MB. Free memory was 73.4MB in the beginning and 73.3MB in the end (delta: 44.1kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-12 22:52:38,119 INFO L158 Benchmark]: CACSL2BoogieTranslator took 3217.18ms. Allocated memory was 100.7MB in the beginning and 127.9MB in the end (delta: 27.3MB). Free memory was 64.1MB in the beginning and 59.7MB in the end (delta: 4.4MB). Peak memory consumption was 45.8MB. Max. memory is 16.1GB. [2021-11-12 22:52:38,121 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 100.7MB. Free memory was 73.4MB in the beginning and 73.3MB in the end (delta: 44.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 3217.18ms. Allocated memory was 100.7MB in the beginning and 127.9MB in the end (delta: 27.3MB). Free memory was 64.1MB in the beginning and 59.7MB in the end (delta: 4.4MB). Peak memory consumption was 45.8MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 6949]: 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_9c08719d-0168-4b7f-bca1-31d6a14a1610/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c08719d-0168-4b7f-bca1-31d6a14a1610/bin/utaipan-vmNK8stdcF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c08719d-0168-4b7f-bca1-31d6a14a1610/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c08719d-0168-4b7f-bca1-31d6a14a1610/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-hippi-rrunner.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c08719d-0168-4b7f-bca1-31d6a14a1610/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c08719d-0168-4b7f-bca1-31d6a14a1610/bin/utaipan-vmNK8stdcF --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 10193951df4eb6f67d99eaaa8758acfa57b6461ca38071389a41cbdc5c585dfb --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-12 22:52:40,296 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-12 22:52:40,311 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-12 22:52:40,353 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-12 22:52:40,354 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-12 22:52:40,359 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-12 22:52:40,361 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-12 22:52:40,369 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-12 22:52:40,372 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-12 22:52:40,377 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-12 22:52:40,378 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-12 22:52:40,379 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-12 22:52:40,380 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-12 22:52:40,381 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-12 22:52:40,382 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-12 22:52:40,383 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-12 22:52:40,384 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-12 22:52:40,385 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-12 22:52:40,387 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-12 22:52:40,395 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-12 22:52:40,397 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-12 22:52:40,399 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-12 22:52:40,402 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-12 22:52:40,404 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-12 22:52:40,408 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-12 22:52:40,408 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-12 22:52:40,409 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-12 22:52:40,411 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-12 22:52:40,411 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-12 22:52:40,413 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-12 22:52:40,414 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-12 22:52:40,415 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-12 22:52:40,416 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-12 22:52:40,417 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-12 22:52:40,419 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-12 22:52:40,419 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-12 22:52:40,420 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-12 22:52:40,420 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-12 22:52:40,428 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-12 22:52:40,429 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-12 22:52:40,430 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-12 22:52:40,435 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c08719d-0168-4b7f-bca1-31d6a14a1610/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-12 22:52:40,480 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-12 22:52:40,480 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-12 22:52:40,482 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-12 22:52:40,482 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-12 22:52:40,482 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-12 22:52:40,482 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-12 22:52:40,482 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-12 22:52:40,483 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-12 22:52:40,483 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-12 22:52:40,483 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-12 22:52:40,485 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-12 22:52:40,486 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-12 22:52:40,486 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-12 22:52:40,486 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-12 22:52:40,486 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-12 22:52:40,486 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-12 22:52:40,487 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-12 22:52:40,487 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-12 22:52:40,487 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-12 22:52:40,487 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-12 22:52:40,488 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-12 22:52:40,488 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-12 22:52:40,488 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-12 22:52:40,488 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-12 22:52:40,488 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 22:52:40,489 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-12 22:52:40,489 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-12 22:52:40,489 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-12 22:52:40,489 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-12 22:52:40,490 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-12 22:52:40,490 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-12 22:52:40,490 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-12 22:52:40,490 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-12 22:52:40,490 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_9c08719d-0168-4b7f-bca1-31d6a14a1610/bin/utaipan-vmNK8stdcF/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c08719d-0168-4b7f-bca1-31d6a14a1610/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 10193951df4eb6f67d99eaaa8758acfa57b6461ca38071389a41cbdc5c585dfb [2021-11-12 22:52:40,873 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-12 22:52:40,903 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-12 22:52:40,906 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-12 22:52:40,907 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-12 22:52:40,908 INFO L275 PluginConnector]: CDTParser initialized [2021-11-12 22:52:40,909 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c08719d-0168-4b7f-bca1-31d6a14a1610/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-hippi-rrunner.cil.i [2021-11-12 22:52:40,995 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c08719d-0168-4b7f-bca1-31d6a14a1610/bin/utaipan-vmNK8stdcF/data/1a9ee2a0f/0856cff2a5cc496a8f504a89cb1d99eb/FLAGc6d9d156a [2021-11-12 22:52:41,939 INFO L306 CDTParser]: Found 1 translation units. [2021-11-12 22:52:41,940 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c08719d-0168-4b7f-bca1-31d6a14a1610/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-hippi-rrunner.cil.i [2021-11-12 22:52:42,030 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c08719d-0168-4b7f-bca1-31d6a14a1610/bin/utaipan-vmNK8stdcF/data/1a9ee2a0f/0856cff2a5cc496a8f504a89cb1d99eb/FLAGc6d9d156a [2021-11-12 22:52:42,306 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c08719d-0168-4b7f-bca1-31d6a14a1610/bin/utaipan-vmNK8stdcF/data/1a9ee2a0f/0856cff2a5cc496a8f504a89cb1d99eb [2021-11-12 22:52:42,308 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-12 22:52:42,309 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-12 22:52:42,310 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-12 22:52:42,311 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-12 22:52:42,314 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-12 22:52:42,315 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 10:52:42" (1/1) ... [2021-11-12 22:52:42,316 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e774675 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:52:42, skipping insertion in model container [2021-11-12 22:52:42,316 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 10:52:42" (1/1) ... [2021-11-12 22:52:42,323 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-12 22:52:42,456 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 22:52:45,433 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c08719d-0168-4b7f-bca1-31d6a14a1610/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-hippi-rrunner.cil.i[341176,341189] [2021-11-12 22:52:45,436 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c08719d-0168-4b7f-bca1-31d6a14a1610/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-hippi-rrunner.cil.i[341345,341358] [2021-11-12 22:52:45,436 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c08719d-0168-4b7f-bca1-31d6a14a1610/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-hippi-rrunner.cil.i[341512,341525] [2021-11-12 22:52:45,437 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c08719d-0168-4b7f-bca1-31d6a14a1610/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-hippi-rrunner.cil.i[341680,341693] [2021-11-12 22:52:45,462 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 22:52:45,520 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-12 22:52:45,651 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 22:52:46,034 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c08719d-0168-4b7f-bca1-31d6a14a1610/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-hippi-rrunner.cil.i[341176,341189] [2021-11-12 22:52:46,034 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c08719d-0168-4b7f-bca1-31d6a14a1610/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-hippi-rrunner.cil.i[341345,341358] [2021-11-12 22:52:46,035 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c08719d-0168-4b7f-bca1-31d6a14a1610/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-hippi-rrunner.cil.i[341512,341525] [2021-11-12 22:52:46,035 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c08719d-0168-4b7f-bca1-31d6a14a1610/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-hippi-rrunner.cil.i[341680,341693] [2021-11-12 22:52:46,041 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 22:52:46,072 INFO L203 MainTranslator]: Completed pre-run [2021-11-12 22:52:46,433 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c08719d-0168-4b7f-bca1-31d6a14a1610/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-hippi-rrunner.cil.i[341176,341189] [2021-11-12 22:52:46,434 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c08719d-0168-4b7f-bca1-31d6a14a1610/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-hippi-rrunner.cil.i[341345,341358] [2021-11-12 22:52:46,435 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c08719d-0168-4b7f-bca1-31d6a14a1610/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-hippi-rrunner.cil.i[341512,341525] [2021-11-12 22:52:46,435 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c08719d-0168-4b7f-bca1-31d6a14a1610/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-hippi-rrunner.cil.i[341680,341693] [2021-11-12 22:52:46,446 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 22:52:46,699 INFO L208 MainTranslator]: Completed translation [2021-11-12 22:52:46,700 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:52:46 WrapperNode [2021-11-12 22:52:46,700 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-12 22:52:46,702 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-12 22:52:46,702 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-12 22:52:46,702 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-12 22:52:46,709 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:52:46" (1/1) ... [2021-11-12 22:52:46,827 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:52:46" (1/1) ... [2021-11-12 22:52:47,056 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-12 22:52:47,057 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-12 22:52:47,058 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-12 22:52:47,058 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-12 22:52:47,066 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:52:46" (1/1) ... [2021-11-12 22:52:47,066 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:52:46" (1/1) ... [2021-11-12 22:52:47,098 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:52:46" (1/1) ... [2021-11-12 22:52:47,099 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:52:46" (1/1) ... [2021-11-12 22:52:47,271 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:52:46" (1/1) ... [2021-11-12 22:52:47,289 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:52:46" (1/1) ... [2021-11-12 22:52:47,318 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:52:46" (1/1) ... [2021-11-12 22:52:47,343 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-12 22:52:47,344 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-12 22:52:47,344 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-12 22:52:47,344 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-12 22:52:47,345 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:52:46" (1/1) ... [2021-11-12 22:52:47,352 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 22:52:47,362 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c08719d-0168-4b7f-bca1-31d6a14a1610/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 22:52:47,375 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c08719d-0168-4b7f-bca1-31d6a14a1610/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-12 22:52:47,404 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c08719d-0168-4b7f-bca1-31d6a14a1610/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-12 22:52:47,418 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_skb [2021-11-12 22:52:47,419 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_skb [2021-11-12 22:52:47,419 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2021-11-12 22:52:47,419 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2021-11-12 22:52:47,419 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-12 22:52:47,419 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-12 22:52:47,419 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_82 [2021-11-12 22:52:47,420 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_82 [2021-11-12 22:52:47,420 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-11-12 22:52:47,420 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-11-12 22:52:47,420 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-12 22:52:47,420 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-12 22:52:47,420 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_rr_driver_exit_13_2 [2021-11-12 22:52:47,421 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_rr_driver_exit_13_2 [2021-11-12 22:52:47,421 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_rr_private [2021-11-12 22:52:47,421 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_rr_private [2021-11-12 22:52:47,421 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-11-12 22:52:47,421 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-11-12 22:52:47,421 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-11-12 22:52:47,422 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-11-12 22:52:47,422 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~C_INT~structend~~TO~C_INT [2021-11-12 22:52:47,422 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~C_INT~structend~~TO~C_INT [2021-11-12 22:52:47,422 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-12 22:52:47,422 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-12 22:52:47,422 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-12 22:52:47,422 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-12 22:52:47,423 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-12 22:52:47,423 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2021-11-12 22:52:47,423 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2021-11-12 22:52:47,423 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-12 22:52:47,423 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-12 22:52:47,423 INFO L130 BoogieDeclarations]: Found specification of procedure capable [2021-11-12 22:52:47,424 INFO L138 BoogieDeclarations]: Found implementation of procedure capable [2021-11-12 22:52:47,424 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-12 22:52:47,424 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-12 22:52:47,424 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2021-11-12 22:52:47,424 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2021-11-12 22:52:47,424 INFO L130 BoogieDeclarations]: Found specification of procedure set_rraddr [2021-11-12 22:52:47,425 INFO L138 BoogieDeclarations]: Found implementation of procedure set_rraddr [2021-11-12 22:52:47,425 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-11-12 22:52:47,425 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-11-12 22:52:47,425 INFO L130 BoogieDeclarations]: Found specification of procedure rr_read_eeprom_word [2021-11-12 22:52:47,425 INFO L138 BoogieDeclarations]: Found implementation of procedure rr_read_eeprom_word [2021-11-12 22:52:47,425 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2021-11-12 22:52:47,426 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2021-11-12 22:52:47,426 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-11-12 22:52:47,426 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-11-12 22:52:47,426 INFO L130 BoogieDeclarations]: Found specification of procedure rr_read_eeprom [2021-11-12 22:52:47,426 INFO L138 BoogieDeclarations]: Found implementation of procedure rr_read_eeprom [2021-11-12 22:52:47,426 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-12 22:52:47,427 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-12 22:52:47,427 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-11-12 22:52:47,427 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-11-12 22:52:47,427 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-12 22:52:47,427 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-12 22:52:47,427 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2021-11-12 22:52:47,428 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2021-11-12 22:52:47,428 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-11-12 22:52:47,428 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-11-12 22:52:47,428 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-11-12 22:52:47,428 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-11-12 22:52:47,428 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2021-11-12 22:52:47,429 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2021-11-12 22:52:47,429 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2021-11-12 22:52:47,429 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2021-11-12 22:52:47,429 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-12 22:52:47,429 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2021-11-12 22:52:47,429 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2021-11-12 22:52:47,430 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-12 22:52:47,430 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-12 22:52:47,430 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-11-12 22:52:47,430 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-11-12 22:52:47,430 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-12 22:52:47,430 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2021-11-12 22:52:47,430 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2021-11-12 22:52:47,431 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-12 22:52:47,431 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-12 22:52:47,431 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-11-12 22:52:47,431 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2021-11-12 22:52:47,431 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2021-11-12 22:52:47,431 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_lock_of_rr_private [2021-11-12 22:52:47,432 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_lock_of_rr_private [2021-11-12 22:52:47,432 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2021-11-12 22:52:47,432 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2021-11-12 22:52:47,432 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-11-12 22:52:47,432 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-11-12 22:52:47,432 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2021-11-12 22:52:47,432 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2021-11-12 22:52:47,433 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2021-11-12 22:52:47,433 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2021-11-12 22:52:47,433 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2021-11-12 22:52:47,433 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2021-11-12 22:52:47,433 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2021-11-12 22:52:47,433 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-12 22:52:47,434 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-12 22:52:47,434 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2021-11-12 22:52:47,434 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2021-11-12 22:52:47,434 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-12 22:52:47,434 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-12 22:52:47,434 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-12 22:52:47,434 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-12 22:52:47,435 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2021-11-12 22:52:47,435 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-12 22:52:47,435 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-12 22:52:47,435 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-12 22:52:47,435 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-11-12 22:52:47,435 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-11-12 22:52:47,436 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2021-11-12 22:52:47,436 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2021-11-12 22:52:47,436 INFO L130 BoogieDeclarations]: Found specification of procedure rr_remove_one [2021-11-12 22:52:47,436 INFO L138 BoogieDeclarations]: Found implementation of procedure rr_remove_one [2021-11-12 22:52:47,436 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2021-11-12 22:52:47,436 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2021-11-12 22:52:47,437 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-12 22:52:47,437 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-12 22:52:47,437 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-11-12 22:52:47,437 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-11-12 22:52:47,437 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2021-11-12 22:52:47,437 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2021-11-12 22:52:47,437 INFO L130 BoogieDeclarations]: Found specification of procedure rr_init1 [2021-11-12 22:52:47,438 INFO L138 BoogieDeclarations]: Found implementation of procedure rr_init1 [2021-11-12 22:52:47,438 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2021-11-12 22:52:47,438 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2021-11-12 22:52:47,438 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2021-11-12 22:52:47,438 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2021-11-12 22:52:47,438 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-12 22:52:47,439 INFO L130 BoogieDeclarations]: Found specification of procedure rr_open [2021-11-12 22:52:47,439 INFO L138 BoogieDeclarations]: Found implementation of procedure rr_open [2021-11-12 22:52:47,439 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-12 22:52:47,439 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2021-11-12 22:52:47,439 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2021-11-12 22:52:47,439 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-12 22:52:47,439 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-12 22:52:47,440 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2021-11-12 22:52:47,440 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-12 22:52:47,440 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-12 22:52:47,440 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2021-11-12 22:52:47,440 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2021-11-12 22:52:47,441 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~C_ULONG~X~C_INT~TO~VOID [2021-11-12 22:52:47,441 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~C_ULONG~X~C_INT~TO~VOID [2021-11-12 22:52:47,441 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-11-12 22:52:47,441 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-11-12 22:52:47,442 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-12 22:52:47,442 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-12 22:52:47,442 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2021-11-12 22:52:47,442 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2021-11-12 22:52:47,442 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-11-12 22:52:47,442 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-11-12 22:52:47,442 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~C_INT [2021-11-12 22:52:47,443 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~C_INT [2021-11-12 22:52:47,443 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-12 22:52:47,443 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-12 22:52:47,443 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-11-12 22:52:47,443 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2021-11-12 22:52:47,443 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2021-11-12 22:52:47,443 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2021-11-12 22:52:47,444 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-12 22:52:47,444 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-12 22:52:47,444 INFO L130 BoogieDeclarations]: Found specification of procedure rr_raz_tx [2021-11-12 22:52:47,444 INFO L138 BoogieDeclarations]: Found implementation of procedure rr_raz_tx [2021-11-12 22:52:47,444 INFO L130 BoogieDeclarations]: Found specification of procedure rr_close [2021-11-12 22:52:47,444 INFO L138 BoogieDeclarations]: Found implementation of procedure rr_close [2021-11-12 22:52:47,444 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-12 22:52:47,445 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-12 22:52:47,445 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2021-11-12 22:52:47,445 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2021-11-12 22:52:47,445 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2021-11-12 22:52:47,445 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2021-11-12 22:52:47,445 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-11-12 22:52:47,445 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-11-12 22:52:47,446 INFO L130 BoogieDeclarations]: Found specification of procedure rr_raz_rx [2021-11-12 22:52:47,446 INFO L138 BoogieDeclarations]: Found implementation of procedure rr_raz_rx [2021-11-12 22:52:48,593 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-12 22:53:14,960 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-12 22:53:15,095 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-12 22:53:15,096 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-12 22:53:15,100 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 10:53:15 BoogieIcfgContainer [2021-11-12 22:53:15,101 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-12 22:53:15,102 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-12 22:53:15,102 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-12 22:53:15,105 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-12 22:53:15,105 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 10:52:42" (1/3) ... [2021-11-12 22:53:15,106 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70832665 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 10:53:15, skipping insertion in model container [2021-11-12 22:53:15,106 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:52:46" (2/3) ... [2021-11-12 22:53:15,106 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70832665 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 10:53:15, skipping insertion in model container [2021-11-12 22:53:15,107 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 10:53:15" (3/3) ... [2021-11-12 22:53:15,108 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-hippi-rrunner.cil.i [2021-11-12 22:53:15,113 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-12 22:53:15,113 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-11-12 22:53:15,180 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-12 22:53:15,186 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-12 22:53:15,186 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-11-12 22:53:15,295 INFO L276 IsEmpty]: Start isEmpty. Operand has 1573 states, 1031 states have (on average 1.2580019398642095) internal successors, (1297), 1056 states have internal predecessors, (1297), 469 states have call successors, (469), 71 states have call predecessors, (469), 70 states have return successors, (463), 452 states have call predecessors, (463), 463 states have call successors, (463) [2021-11-12 22:53:15,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-11-12 22:53:15,319 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:53:15,320 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:53:15,320 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-12 22:53:15,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:53:15,329 INFO L85 PathProgramCache]: Analyzing trace with hash -953988820, now seen corresponding path program 1 times [2021-11-12 22:53:15,345 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:53:15,346 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1977256796] [2021-11-12 22:53:15,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:53:15,347 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:53:15,347 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c08719d-0168-4b7f-bca1-31d6a14a1610/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:53:15,351 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c08719d-0168-4b7f-bca1-31d6a14a1610/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:53:15,398 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c08719d-0168-4b7f-bca1-31d6a14a1610/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-12 22:53:16,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:53:16,968 INFO L263 TraceCheckSpWp]: Trace formula consists of 1026 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-12 22:53:16,977 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:53:17,376 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 189 trivial. 0 not checked. [2021-11-12 22:53:17,377 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:53:17,693 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2021-11-12 22:53:17,694 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:53:17,694 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1977256796] [2021-11-12 22:53:17,695 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1977256796] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:53:17,695 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:53:17,695 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-12 22:53:17,697 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1577955139] [2021-11-12 22:53:17,697 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:53:17,702 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-12 22:53:17,702 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:53:17,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-12 22:53:17,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 22:53:17,733 INFO L87 Difference]: Start difference. First operand has 1573 states, 1031 states have (on average 1.2580019398642095) internal successors, (1297), 1056 states have internal predecessors, (1297), 469 states have call successors, (469), 71 states have call predecessors, (469), 70 states have return successors, (463), 452 states have call predecessors, (463), 463 states have call successors, (463) Second operand has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 4 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2021-11-12 22:53:19,897 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:53:25,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:53:25,808 INFO L93 Difference]: Finished difference Result 6071 states and 8810 transitions. [2021-11-12 22:53:25,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 22:53:25,811 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 4 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) Word has length 105 [2021-11-12 22:53:25,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:53:25,870 INFO L225 Difference]: With dead ends: 6071 [2021-11-12 22:53:25,870 INFO L226 Difference]: Without dead ends: 4500 [2021-11-12 22:53:25,890 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 208 GetRequests, 206 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 22:53:25,893 INFO L933 BasicCegarLoop]: 3100 mSDtfsCounter, 5437 mSDsluCounter, 3334 mSDsCounter, 0 mSdLazyCounter, 956 mSolverCounterSat, 873 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6767.60ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 5437 SdHoareTripleChecker+Valid, 6434 SdHoareTripleChecker+Invalid, 1830 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 58.26ms SdHoareTripleChecker+Time, 873 IncrementalHoareTripleChecker+Valid, 956 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7561.29ms IncrementalHoareTripleChecker+Time [2021-11-12 22:53:25,894 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5437 Valid, 6434 Invalid, 1830 Unknown, 0 Unchecked, 58.26ms Time], IncrementalHoareTripleChecker [873 Valid, 956 Invalid, 1 Unknown, 0 Unchecked, 7561.29ms Time] [2021-11-12 22:53:25,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4500 states. [2021-11-12 22:53:26,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4500 to 4471. [2021-11-12 22:53:26,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4471 states, 2960 states have (on average 1.2466216216216217) internal successors, (3690), 3031 states have internal predecessors, (3690), 1305 states have call successors, (1305), 204 states have call predecessors, (1305), 203 states have return successors, (1301), 1268 states have call predecessors, (1301), 1301 states have call successors, (1301) [2021-11-12 22:53:26,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4471 states to 4471 states and 6296 transitions. [2021-11-12 22:53:26,398 INFO L78 Accepts]: Start accepts. Automaton has 4471 states and 6296 transitions. Word has length 105 [2021-11-12 22:53:26,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:53:26,401 INFO L470 AbstractCegarLoop]: Abstraction has 4471 states and 6296 transitions. [2021-11-12 22:53:26,407 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 4 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2021-11-12 22:53:26,408 INFO L276 IsEmpty]: Start isEmpty. Operand 4471 states and 6296 transitions. [2021-11-12 22:53:26,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-11-12 22:53:26,414 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:53:26,415 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:53:26,449 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c08719d-0168-4b7f-bca1-31d6a14a1610/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-12 22:53:26,633 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c08719d-0168-4b7f-bca1-31d6a14a1610/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:53:26,633 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-12 22:53:26,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:53:26,634 INFO L85 PathProgramCache]: Analyzing trace with hash -428023411, now seen corresponding path program 1 times [2021-11-12 22:53:26,636 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:53:26,637 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [730470663] [2021-11-12 22:53:26,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:53:26,637 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:53:26,637 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c08719d-0168-4b7f-bca1-31d6a14a1610/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:53:26,640 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c08719d-0168-4b7f-bca1-31d6a14a1610/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:53:26,686 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c08719d-0168-4b7f-bca1-31d6a14a1610/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-12 22:53:28,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:53:28,135 INFO L263 TraceCheckSpWp]: Trace formula consists of 1072 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-12 22:53:28,141 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:53:28,398 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 189 trivial. 0 not checked. [2021-11-12 22:53:28,398 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:53:28,704 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2021-11-12 22:53:28,704 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:53:28,704 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [730470663] [2021-11-12 22:53:28,705 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [730470663] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:53:28,705 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:53:28,705 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-12 22:53:28,705 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [419111443] [2021-11-12 22:53:28,706 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:53:28,707 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-12 22:53:28,707 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:53:28,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-12 22:53:28,708 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 22:53:28,708 INFO L87 Difference]: Start difference. First operand 4471 states and 6296 transitions. 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) [2021-11-12 22:53:30,818 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:53:34,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:53:34,818 INFO L93 Difference]: Finished difference Result 16219 states and 22847 transitions. [2021-11-12 22:53:34,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 22:53:34,819 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 113 [2021-11-12 22:53:34,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:53:34,918 INFO L225 Difference]: With dead ends: 16219 [2021-11-12 22:53:34,918 INFO L226 Difference]: Without dead ends: 11767 [2021-11-12 22:53:34,939 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 224 GetRequests, 222 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 22:53:34,941 INFO L933 BasicCegarLoop]: 2994 mSDtfsCounter, 3626 mSDsluCounter, 4731 mSDsCounter, 0 mSdLazyCounter, 817 mSolverCounterSat, 16 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4972.27ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3626 SdHoareTripleChecker+Valid, 7725 SdHoareTripleChecker+Invalid, 834 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 37.66ms SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 817 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5404.94ms IncrementalHoareTripleChecker+Time [2021-11-12 22:53:34,941 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3626 Valid, 7725 Invalid, 834 Unknown, 0 Unchecked, 37.66ms Time], IncrementalHoareTripleChecker [16 Valid, 817 Invalid, 1 Unknown, 0 Unchecked, 5404.94ms Time] [2021-11-12 22:53:34,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11767 states. [2021-11-12 22:53:35,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11767 to 11699. [2021-11-12 22:53:35,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11699 states, 7638 states have (on average 1.242471851269966) internal successors, (9490), 7787 states have internal predecessors, (9490), 3475 states have call successors, (3475), 602 states have call predecessors, (3475), 583 states have return successors, (3507), 3384 states have call predecessors, (3507), 3471 states have call successors, (3507) [2021-11-12 22:53:35,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11699 states to 11699 states and 16472 transitions. [2021-11-12 22:53:35,794 INFO L78 Accepts]: Start accepts. Automaton has 11699 states and 16472 transitions. Word has length 113 [2021-11-12 22:53:35,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:53:35,795 INFO L470 AbstractCegarLoop]: Abstraction has 11699 states and 16472 transitions. [2021-11-12 22:53:35,796 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) [2021-11-12 22:53:35,797 INFO L276 IsEmpty]: Start isEmpty. Operand 11699 states and 16472 transitions. [2021-11-12 22:53:35,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-11-12 22:53:35,805 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:53:35,806 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:53:35,832 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c08719d-0168-4b7f-bca1-31d6a14a1610/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-12 22:53:36,013 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c08719d-0168-4b7f-bca1-31d6a14a1610/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:53:36,014 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-12 22:53:36,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:53:36,015 INFO L85 PathProgramCache]: Analyzing trace with hash -342971918, now seen corresponding path program 1 times [2021-11-12 22:53:36,016 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:53:36,017 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1994946511] [2021-11-12 22:53:36,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:53:36,017 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:53:36,017 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c08719d-0168-4b7f-bca1-31d6a14a1610/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:53:36,018 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c08719d-0168-4b7f-bca1-31d6a14a1610/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:53:36,020 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c08719d-0168-4b7f-bca1-31d6a14a1610/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-12 22:53:37,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:53:37,536 INFO L263 TraceCheckSpWp]: Trace formula consists of 1144 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-12 22:53:37,546 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:53:37,830 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 189 trivial. 0 not checked. [2021-11-12 22:53:37,830 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:53:38,137 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2021-11-12 22:53:38,138 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:53:38,138 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1994946511] [2021-11-12 22:53:38,138 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1994946511] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:53:38,138 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:53:38,138 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-12 22:53:38,139 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [578245871] [2021-11-12 22:53:38,139 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:53:38,139 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-12 22:53:38,139 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:53:38,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-12 22:53:38,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 22:53:38,140 INFO L87 Difference]: Start difference. First operand 11699 states and 16472 transitions. Second operand has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 4 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2021-11-12 22:53:40,306 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:53:45,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:53:45,906 INFO L93 Difference]: Finished difference Result 31647 states and 44594 transitions. [2021-11-12 22:53:45,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 22:53:45,907 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 4 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) Word has length 116 [2021-11-12 22:53:45,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:53:46,054 INFO L225 Difference]: With dead ends: 31647 [2021-11-12 22:53:46,055 INFO L226 Difference]: Without dead ends: 19967 [2021-11-12 22:53:46,118 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 230 GetRequests, 228 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 22:53:46,119 INFO L933 BasicCegarLoop]: 3019 mSDtfsCounter, 4394 mSDsluCounter, 2960 mSDsCounter, 0 mSdLazyCounter, 1001 mSolverCounterSat, 645 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6182.39ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4394 SdHoareTripleChecker+Valid, 5979 SdHoareTripleChecker+Invalid, 1647 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 30.61ms SdHoareTripleChecker+Time, 645 IncrementalHoareTripleChecker+Valid, 1001 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6897.55ms IncrementalHoareTripleChecker+Time [2021-11-12 22:53:46,120 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4394 Valid, 5979 Invalid, 1647 Unknown, 0 Unchecked, 30.61ms Time], IncrementalHoareTripleChecker [645 Valid, 1001 Invalid, 1 Unknown, 0 Unchecked, 6897.55ms Time] [2021-11-12 22:53:46,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19967 states. [2021-11-12 22:53:47,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19967 to 19903. [2021-11-12 22:53:47,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19903 states, 12860 states have (on average 1.2404354587869362) internal successors, (15952), 13109 states have internal predecessors, (15952), 5984 states have call successors, (5984), 1079 states have call predecessors, (5984), 1056 states have return successors, (6008), 5838 states have call predecessors, (6008), 5980 states have call successors, (6008) [2021-11-12 22:53:47,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19903 states to 19903 states and 27944 transitions. [2021-11-12 22:53:47,522 INFO L78 Accepts]: Start accepts. Automaton has 19903 states and 27944 transitions. Word has length 116 [2021-11-12 22:53:47,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:53:47,523 INFO L470 AbstractCegarLoop]: Abstraction has 19903 states and 27944 transitions. [2021-11-12 22:53:47,523 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 4 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2021-11-12 22:53:47,524 INFO L276 IsEmpty]: Start isEmpty. Operand 19903 states and 27944 transitions. [2021-11-12 22:53:47,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2021-11-12 22:53:47,527 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:53:47,527 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:53:47,559 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c08719d-0168-4b7f-bca1-31d6a14a1610/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-12 22:53:47,749 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c08719d-0168-4b7f-bca1-31d6a14a1610/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:53:47,749 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-12 22:53:47,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:53:47,750 INFO L85 PathProgramCache]: Analyzing trace with hash -331999955, now seen corresponding path program 1 times [2021-11-12 22:53:47,751 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:53:47,751 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [508518619] [2021-11-12 22:53:47,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:53:47,752 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:53:47,752 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c08719d-0168-4b7f-bca1-31d6a14a1610/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:53:47,755 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c08719d-0168-4b7f-bca1-31d6a14a1610/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:53:47,761 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c08719d-0168-4b7f-bca1-31d6a14a1610/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-12 22:53:49,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:53:49,176 INFO L263 TraceCheckSpWp]: Trace formula consists of 1123 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-12 22:53:49,180 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:53:49,533 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 87 proven. 0 refuted. 0 times theorem prover too weak. 189 trivial. 0 not checked. [2021-11-12 22:53:49,533 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:53:49,887 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 276 trivial. 0 not checked. [2021-11-12 22:53:49,887 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:53:49,887 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [508518619] [2021-11-12 22:53:49,887 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [508518619] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:53:49,887 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:53:49,887 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-12 22:53:49,887 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [443098167] [2021-11-12 22:53:49,887 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:53:49,890 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-12 22:53:49,890 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:53:49,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-12 22:53:49,891 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-12 22:53:49,891 INFO L87 Difference]: Start difference. First operand 19903 states and 27944 transitions. Second operand has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 3 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2021-11-12 22:53:52,064 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:53:53,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:53:53,317 INFO L93 Difference]: Finished difference Result 54410 states and 76317 transitions. [2021-11-12 22:53:53,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-12 22:53:53,318 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 3 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 133 [2021-11-12 22:53:53,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:53:53,487 INFO L225 Difference]: With dead ends: 54410 [2021-11-12 22:53:53,487 INFO L226 Difference]: Without dead ends: 34526 [2021-11-12 22:53:53,558 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 264 GetRequests, 263 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-12 22:53:53,560 INFO L933 BasicCegarLoop]: 2588 mSDtfsCounter, 1836 mSDsluCounter, 2130 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2231.89ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1836 SdHoareTripleChecker+Valid, 4718 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 10.01ms SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2274.82ms IncrementalHoareTripleChecker+Time [2021-11-12 22:53:53,561 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1836 Valid, 4718 Invalid, 40 Unknown, 0 Unchecked, 10.01ms Time], IncrementalHoareTripleChecker [7 Valid, 32 Invalid, 1 Unknown, 0 Unchecked, 2274.82ms Time] [2021-11-12 22:53:53,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34526 states. [2021-11-12 22:53:56,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34526 to 34490. [2021-11-12 22:53:56,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34490 states, 22141 states have (on average 1.2331421345016034) internal successors, (27303), 22598 states have internal predecessors, (27303), 10451 states have call successors, (10451), 1944 states have call predecessors, (10451), 1895 states have return successors, (10503), 10146 states have call predecessors, (10503), 10447 states have call successors, (10503) [2021-11-12 22:53:56,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34490 states to 34490 states and 48257 transitions. [2021-11-12 22:53:56,723 INFO L78 Accepts]: Start accepts. Automaton has 34490 states and 48257 transitions. Word has length 133 [2021-11-12 22:53:56,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:53:56,724 INFO L470 AbstractCegarLoop]: Abstraction has 34490 states and 48257 transitions. [2021-11-12 22:53:56,725 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 3 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2021-11-12 22:53:56,725 INFO L276 IsEmpty]: Start isEmpty. Operand 34490 states and 48257 transitions. [2021-11-12 22:53:56,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2021-11-12 22:53:56,731 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:53:56,731 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 7, 7, 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] [2021-11-12 22:53:56,763 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c08719d-0168-4b7f-bca1-31d6a14a1610/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-12 22:53:56,943 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c08719d-0168-4b7f-bca1-31d6a14a1610/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:53:56,945 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-12 22:53:56,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:53:56,946 INFO L85 PathProgramCache]: Analyzing trace with hash 1068291775, now seen corresponding path program 1 times [2021-11-12 22:53:56,950 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:53:56,951 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1794908080] [2021-11-12 22:53:56,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:53:56,952 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:53:56,952 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c08719d-0168-4b7f-bca1-31d6a14a1610/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:53:56,956 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c08719d-0168-4b7f-bca1-31d6a14a1610/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:53:56,960 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c08719d-0168-4b7f-bca1-31d6a14a1610/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-12 22:53:58,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:53:58,423 INFO L263 TraceCheckSpWp]: Trace formula consists of 1188 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-12 22:53:58,427 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:53:58,760 INFO L134 CoverageAnalysis]: Checked inductivity of 217 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 196 trivial. 0 not checked. [2021-11-12 22:53:58,760 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:53:59,118 INFO L134 CoverageAnalysis]: Checked inductivity of 217 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 217 trivial. 0 not checked. [2021-11-12 22:53:59,119 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:53:59,119 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1794908080] [2021-11-12 22:53:59,119 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1794908080] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:53:59,119 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:53:59,119 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-12 22:53:59,120 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [64388207] [2021-11-12 22:53:59,120 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:53:59,120 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-12 22:53:59,121 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:53:59,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-12 22:53:59,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 22:53:59,121 INFO L87 Difference]: Start difference. First operand 34490 states and 48257 transitions. Second operand has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 4 states have call successors, (29), 3 states have call predecessors, (29), 3 states have return successors, (26), 4 states have call predecessors, (26), 4 states have call successors, (26) [2021-11-12 22:54:01,254 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 [] [2021-11-12 22:54:06,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:54:06,723 INFO L93 Difference]: Finished difference Result 125265 states and 174733 transitions. [2021-11-12 22:54:06,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 22:54:06,724 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 4 states have call successors, (29), 3 states have call predecessors, (29), 3 states have return successors, (26), 4 states have call predecessors, (26), 4 states have call successors, (26) Word has length 144 [2021-11-12 22:54:06,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:54:07,515 INFO L225 Difference]: With dead ends: 125265 [2021-11-12 22:54:07,515 INFO L226 Difference]: Without dead ends: 90794 [2021-11-12 22:54:07,658 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 286 GetRequests, 284 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 22:54:07,660 INFO L933 BasicCegarLoop]: 3752 mSDtfsCounter, 4129 mSDsluCounter, 4735 mSDsCounter, 0 mSdLazyCounter, 847 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4614.62ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4129 SdHoareTripleChecker+Valid, 8487 SdHoareTripleChecker+Invalid, 855 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 23.05ms SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 847 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5103.85ms IncrementalHoareTripleChecker+Time [2021-11-12 22:54:07,662 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4129 Valid, 8487 Invalid, 855 Unknown, 0 Unchecked, 23.05ms Time], IncrementalHoareTripleChecker [7 Valid, 847 Invalid, 1 Unknown, 0 Unchecked, 5103.85ms Time] [2021-11-12 22:54:07,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90794 states. [2021-11-12 22:54:12,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90794 to 90610. [2021-11-12 22:54:12,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90610 states, 59324 states have (on average 1.2387903715191153) internal successors, (73490), 60713 states have internal predecessors, (73490), 26257 states have call successors, (26257), 5195 states have call predecessors, (26257), 5026 states have return successors, (26437), 25224 states have call predecessors, (26437), 26253 states have call successors, (26437) [2021-11-12 22:54:13,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90610 states to 90610 states and 126184 transitions. [2021-11-12 22:54:13,192 INFO L78 Accepts]: Start accepts. Automaton has 90610 states and 126184 transitions. Word has length 144 [2021-11-12 22:54:13,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:54:13,193 INFO L470 AbstractCegarLoop]: Abstraction has 90610 states and 126184 transitions. [2021-11-12 22:54:13,193 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 4 states have call successors, (29), 3 states have call predecessors, (29), 3 states have return successors, (26), 4 states have call predecessors, (26), 4 states have call successors, (26) [2021-11-12 22:54:13,193 INFO L276 IsEmpty]: Start isEmpty. Operand 90610 states and 126184 transitions. [2021-11-12 22:54:13,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2021-11-12 22:54:13,198 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:54:13,198 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 7, 7, 7, 7, 7, 7, 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] [2021-11-12 22:54:13,237 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c08719d-0168-4b7f-bca1-31d6a14a1610/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-12 22:54:13,421 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c08719d-0168-4b7f-bca1-31d6a14a1610/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:54:13,421 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)] === [2021-11-12 22:54:13,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:54:13,422 INFO L85 PathProgramCache]: Analyzing trace with hash -1011895487, now seen corresponding path program 1 times [2021-11-12 22:54:13,424 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:54:13,424 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [198408728] [2021-11-12 22:54:13,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:54:13,424 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:54:13,424 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c08719d-0168-4b7f-bca1-31d6a14a1610/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:54:13,426 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c08719d-0168-4b7f-bca1-31d6a14a1610/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:54:13,467 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c08719d-0168-4b7f-bca1-31d6a14a1610/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-12 22:54:15,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:54:15,209 INFO L263 TraceCheckSpWp]: Trace formula consists of 1151 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 22:54:15,214 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:54:16,014 INFO L134 CoverageAnalysis]: Checked inductivity of 325 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2021-11-12 22:54:16,014 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:54:16,642 INFO L134 CoverageAnalysis]: Checked inductivity of 325 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2021-11-12 22:54:16,642 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:54:16,642 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [198408728] [2021-11-12 22:54:16,642 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [198408728] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:54:16,643 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:54:16,643 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 5] imperfect sequences [] total 7 [2021-11-12 22:54:16,643 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [751941422] [2021-11-12 22:54:16,643 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:54:16,644 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-12 22:54:16,644 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:54:16,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-12 22:54:16,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-12 22:54:16,645 INFO L87 Difference]: Start difference. First operand 90610 states and 126184 transitions. Second operand has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 5 states have internal predecessors, (66), 2 states have call successors, (35), 4 states have call predecessors, (35), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2021-11-12 22:54:19,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:54:19,966 INFO L93 Difference]: Finished difference Result 90616 states and 126189 transitions. [2021-11-12 22:54:19,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-12 22:54:19,967 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 5 states have internal predecessors, (66), 2 states have call successors, (35), 4 states have call predecessors, (35), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) Word has length 161 [2021-11-12 22:54:19,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:54:20,490 INFO L225 Difference]: With dead ends: 90616 [2021-11-12 22:54:20,494 INFO L226 Difference]: Without dead ends: 90614 [2021-11-12 22:54:20,531 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 323 GetRequests, 315 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2021-11-12 22:54:20,533 INFO L933 BasicCegarLoop]: 2190 mSDtfsCounter, 2108 mSDsluCounter, 6541 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 90.08ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2122 SdHoareTripleChecker+Valid, 8731 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 24.74ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 98.53ms IncrementalHoareTripleChecker+Time [2021-11-12 22:54:20,534 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2122 Valid, 8731 Invalid, 40 Unknown, 0 Unchecked, 24.74ms Time], IncrementalHoareTripleChecker [1 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 98.53ms Time] [2021-11-12 22:54:20,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90614 states. [2021-11-12 22:54:25,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90614 to 90614. [2021-11-12 22:54:25,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90614 states, 59327 states have (on average 1.2387782965597451) internal successors, (73493), 60716 states have internal predecessors, (73493), 26257 states have call successors, (26257), 5196 states have call predecessors, (26257), 5027 states have return successors, (26437), 25224 states have call predecessors, (26437), 26253 states have call successors, (26437) [2021-11-12 22:54:26,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90614 states to 90614 states and 126187 transitions. [2021-11-12 22:54:26,072 INFO L78 Accepts]: Start accepts. Automaton has 90614 states and 126187 transitions. Word has length 161 [2021-11-12 22:54:26,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:54:26,073 INFO L470 AbstractCegarLoop]: Abstraction has 90614 states and 126187 transitions. [2021-11-12 22:54:26,073 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 5 states have internal predecessors, (66), 2 states have call successors, (35), 4 states have call predecessors, (35), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2021-11-12 22:54:26,074 INFO L276 IsEmpty]: Start isEmpty. Operand 90614 states and 126187 transitions. [2021-11-12 22:54:26,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2021-11-12 22:54:26,084 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:54:26,084 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 7, 7, 7, 7, 7, 7, 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] [2021-11-12 22:54:26,125 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c08719d-0168-4b7f-bca1-31d6a14a1610/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-12 22:54:26,309 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c08719d-0168-4b7f-bca1-31d6a14a1610/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:54:26,309 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-12 22:54:26,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:54:26,310 INFO L85 PathProgramCache]: Analyzing trace with hash -1814810637, now seen corresponding path program 1 times [2021-11-12 22:54:26,312 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:54:26,312 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1612782332] [2021-11-12 22:54:26,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:54:26,314 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:54:26,315 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c08719d-0168-4b7f-bca1-31d6a14a1610/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:54:26,316 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c08719d-0168-4b7f-bca1-31d6a14a1610/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:54:26,355 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c08719d-0168-4b7f-bca1-31d6a14a1610/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-12 22:54:27,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:54:27,880 INFO L263 TraceCheckSpWp]: Trace formula consists of 1225 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-12 22:54:27,885 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:54:28,294 INFO L134 CoverageAnalysis]: Checked inductivity of 248 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 196 trivial. 0 not checked. [2021-11-12 22:54:28,294 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:54:28,718 INFO L134 CoverageAnalysis]: Checked inductivity of 248 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 241 trivial. 0 not checked. [2021-11-12 22:54:28,718 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:54:28,718 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1612782332] [2021-11-12 22:54:28,718 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1612782332] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:54:28,718 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:54:28,718 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-12 22:54:28,719 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1778678056] [2021-11-12 22:54:28,719 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:54:28,720 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-12 22:54:28,720 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:54:28,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-12 22:54:28,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 22:54:28,721 INFO L87 Difference]: Start difference. First operand 90614 states and 126187 transitions. Second operand has 4 states, 4 states have (on average 25.25) internal successors, (101), 4 states have internal predecessors, (101), 4 states have call successors, (33), 3 states have call predecessors, (33), 3 states have return successors, (30), 4 states have call predecessors, (30), 4 states have call successors, (30) [2021-11-12 22:54:30,841 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers []