./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-ethernet-packetengines-hamachi.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_5444af28-7da3-4568-aa85-3bf2e4731dbc/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5444af28-7da3-4568-aa85-3bf2e4731dbc/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_5444af28-7da3-4568-aa85-3bf2e4731dbc/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5444af28-7da3-4568-aa85-3bf2e4731dbc/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-ethernet-packetengines-hamachi.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5444af28-7da3-4568-aa85-3bf2e4731dbc/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_5444af28-7da3-4568-aa85-3bf2e4731dbc/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 141cc550f279b59aa80e553b6a405c5654c50ab0a30e94ad7616006c63d0c81e --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-12 23:05:46,950 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-12 23:05:46,953 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-12 23:05:46,986 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-12 23:05:46,987 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-12 23:05:46,989 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-12 23:05:46,991 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-12 23:05:46,993 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-12 23:05:46,995 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-12 23:05:46,997 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-12 23:05:46,998 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-12 23:05:47,000 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-12 23:05:47,000 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-12 23:05:47,002 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-12 23:05:47,004 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-12 23:05:47,005 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-12 23:05:47,007 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-12 23:05:47,008 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-12 23:05:47,011 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-12 23:05:47,013 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-12 23:05:47,016 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-12 23:05:47,017 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-12 23:05:47,019 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-12 23:05:47,020 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-12 23:05:47,024 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-12 23:05:47,025 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-12 23:05:47,025 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-12 23:05:47,026 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-12 23:05:47,027 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-12 23:05:47,028 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-12 23:05:47,029 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-12 23:05:47,030 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-12 23:05:47,031 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-12 23:05:47,032 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-12 23:05:47,033 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-12 23:05:47,034 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-12 23:05:47,036 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-12 23:05:47,037 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-12 23:05:47,037 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-12 23:05:47,038 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-12 23:05:47,039 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-12 23:05:47,040 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5444af28-7da3-4568-aa85-3bf2e4731dbc/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-12 23:05:47,082 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-12 23:05:47,085 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-12 23:05:47,087 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-12 23:05:47,088 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-12 23:05:47,088 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-12 23:05:47,088 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-12 23:05:47,088 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-12 23:05:47,089 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-12 23:05:47,089 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-12 23:05:47,089 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-12 23:05:47,090 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-12 23:05:47,090 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-12 23:05:47,091 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-12 23:05:47,091 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-12 23:05:47,091 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-12 23:05:47,091 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-12 23:05:47,092 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-12 23:05:47,093 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-12 23:05:47,093 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-12 23:05:47,093 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-12 23:05:47,093 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-12 23:05:47,094 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-12 23:05:47,094 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-12 23:05:47,094 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-12 23:05:47,094 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-12 23:05:47,095 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-12 23:05:47,095 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-12 23:05:47,095 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-12 23:05:47,095 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 23:05:47,098 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-12 23:05:47,098 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-12 23:05:47,098 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-12 23:05:47,099 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-12 23:05:47,099 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-12 23:05:47,099 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-12 23:05:47,099 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-12 23:05:47,100 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-12 23:05:47,100 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_5444af28-7da3-4568-aa85-3bf2e4731dbc/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5444af28-7da3-4568-aa85-3bf2e4731dbc/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 141cc550f279b59aa80e553b6a405c5654c50ab0a30e94ad7616006c63d0c81e [2021-11-12 23:05:47,374 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-12 23:05:47,394 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-12 23:05:47,398 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-12 23:05:47,399 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-12 23:05:47,400 INFO L275 PluginConnector]: CDTParser initialized [2021-11-12 23:05:47,401 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5444af28-7da3-4568-aa85-3bf2e4731dbc/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-packetengines-hamachi.cil.i [2021-11-12 23:05:47,467 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5444af28-7da3-4568-aa85-3bf2e4731dbc/bin/utaipan-vmNK8stdcF/data/862fbd095/d43ccf3ddfca49109574d6eb481dd927/FLAGa6f3f92c6 [2021-11-12 23:05:48,489 INFO L306 CDTParser]: Found 1 translation units. [2021-11-12 23:05:48,490 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5444af28-7da3-4568-aa85-3bf2e4731dbc/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-packetengines-hamachi.cil.i [2021-11-12 23:05:48,539 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5444af28-7da3-4568-aa85-3bf2e4731dbc/bin/utaipan-vmNK8stdcF/data/862fbd095/d43ccf3ddfca49109574d6eb481dd927/FLAGa6f3f92c6 [2021-11-12 23:05:48,834 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5444af28-7da3-4568-aa85-3bf2e4731dbc/bin/utaipan-vmNK8stdcF/data/862fbd095/d43ccf3ddfca49109574d6eb481dd927 [2021-11-12 23:05:48,837 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-12 23:05:48,839 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-12 23:05:48,846 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-12 23:05:48,847 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-12 23:05:48,849 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-12 23:05:48,850 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 11:05:48" (1/1) ... [2021-11-12 23:05:48,851 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@55bd306c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:05:48, skipping insertion in model container [2021-11-12 23:05:48,851 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 11:05:48" (1/1) ... [2021-11-12 23:05:48,858 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-12 23:05:49,025 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 23:05:50,786 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 23:05:50,787 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 23:05:51,784 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_5444af28-7da3-4568-aa85-3bf2e4731dbc/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-packetengines-hamachi.cil.i[322818,322831] [2021-11-12 23:05:51,787 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_5444af28-7da3-4568-aa85-3bf2e4731dbc/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-packetengines-hamachi.cil.i[322987,323000] [2021-11-12 23:05:51,788 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_5444af28-7da3-4568-aa85-3bf2e4731dbc/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-packetengines-hamachi.cil.i[323154,323167] [2021-11-12 23:05:51,788 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_5444af28-7da3-4568-aa85-3bf2e4731dbc/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-packetengines-hamachi.cil.i[323322,323335] [2021-11-12 23:05:51,809 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 23:05:51,868 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 23:05:51,869 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@485b9c60 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:05:51, skipping insertion in model container [2021-11-12 23:05:51,869 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-12 23:05:51,870 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-12 23:05:51,873 INFO L158 Benchmark]: Toolchain (without parser) took 3032.07ms. Allocated memory was 86.0MB in the beginning and 159.4MB in the end (delta: 73.4MB). Free memory was 55.2MB in the beginning and 85.6MB in the end (delta: -30.4MB). Peak memory consumption was 40.3MB. Max. memory is 16.1GB. [2021-11-12 23:05:51,874 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 86.0MB. Free memory is still 66.2MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-12 23:05:51,875 INFO L158 Benchmark]: CACSL2BoogieTranslator took 3023.32ms. Allocated memory was 86.0MB in the beginning and 159.4MB in the end (delta: 73.4MB). Free memory was 55.0MB in the beginning and 85.6MB in the end (delta: -30.6MB). Peak memory consumption was 40.3MB. Max. memory is 16.1GB. [2021-11-12 23:05:51,878 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 86.0MB. Free memory is still 66.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 3023.32ms. Allocated memory was 86.0MB in the beginning and 159.4MB in the end (delta: 73.4MB). Free memory was 55.0MB in the beginning and 85.6MB in the end (delta: -30.6MB). Peak memory consumption was 40.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 6159]: 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_5444af28-7da3-4568-aa85-3bf2e4731dbc/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5444af28-7da3-4568-aa85-3bf2e4731dbc/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_5444af28-7da3-4568-aa85-3bf2e4731dbc/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5444af28-7da3-4568-aa85-3bf2e4731dbc/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-ethernet-packetengines-hamachi.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5444af28-7da3-4568-aa85-3bf2e4731dbc/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_5444af28-7da3-4568-aa85-3bf2e4731dbc/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 141cc550f279b59aa80e553b6a405c5654c50ab0a30e94ad7616006c63d0c81e --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-12 23:05:54,184 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-12 23:05:54,186 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-12 23:05:54,235 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-12 23:05:54,236 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-12 23:05:54,240 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-12 23:05:54,242 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-12 23:05:54,247 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-12 23:05:54,250 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-12 23:05:54,258 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-12 23:05:54,260 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-12 23:05:54,261 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-12 23:05:54,262 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-12 23:05:54,265 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-12 23:05:54,267 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-12 23:05:54,271 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-12 23:05:54,274 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-12 23:05:54,275 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-12 23:05:54,277 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-12 23:05:54,289 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-12 23:05:54,291 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-12 23:05:54,293 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-12 23:05:54,296 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-12 23:05:54,298 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-12 23:05:54,307 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-12 23:05:54,307 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-12 23:05:54,307 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-12 23:05:54,310 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-12 23:05:54,310 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-12 23:05:54,311 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-12 23:05:54,312 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-12 23:05:54,313 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-12 23:05:54,315 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-12 23:05:54,315 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-12 23:05:54,317 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-12 23:05:54,317 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-12 23:05:54,318 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-12 23:05:54,318 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-12 23:05:54,319 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-12 23:05:54,320 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-12 23:05:54,321 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-12 23:05:54,322 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5444af28-7da3-4568-aa85-3bf2e4731dbc/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-12 23:05:54,369 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-12 23:05:54,370 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-12 23:05:54,371 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-12 23:05:54,371 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-12 23:05:54,372 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-12 23:05:54,372 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-12 23:05:54,372 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-12 23:05:54,372 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-12 23:05:54,373 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-12 23:05:54,373 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-12 23:05:54,375 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-12 23:05:54,375 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-12 23:05:54,376 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-12 23:05:54,376 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-12 23:05:54,376 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-12 23:05:54,376 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-12 23:05:54,377 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-12 23:05:54,377 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-12 23:05:54,377 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-12 23:05:54,377 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-12 23:05:54,377 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-12 23:05:54,378 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-12 23:05:54,378 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-12 23:05:54,378 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-12 23:05:54,378 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 23:05:54,379 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-12 23:05:54,379 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-12 23:05:54,379 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-12 23:05:54,379 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-12 23:05:54,379 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-12 23:05:54,380 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-12 23:05:54,380 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-12 23:05:54,380 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-12 23:05:54,380 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_5444af28-7da3-4568-aa85-3bf2e4731dbc/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5444af28-7da3-4568-aa85-3bf2e4731dbc/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 141cc550f279b59aa80e553b6a405c5654c50ab0a30e94ad7616006c63d0c81e [2021-11-12 23:05:54,765 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-12 23:05:54,789 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-12 23:05:54,792 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-12 23:05:54,793 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-12 23:05:54,794 INFO L275 PluginConnector]: CDTParser initialized [2021-11-12 23:05:54,795 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5444af28-7da3-4568-aa85-3bf2e4731dbc/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-packetengines-hamachi.cil.i [2021-11-12 23:05:54,869 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5444af28-7da3-4568-aa85-3bf2e4731dbc/bin/utaipan-vmNK8stdcF/data/5e9e7e0a0/a306df9ee7f142e487fa7afafef3c6f6/FLAGed5a7ac9a [2021-11-12 23:05:55,763 INFO L306 CDTParser]: Found 1 translation units. [2021-11-12 23:05:55,764 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5444af28-7da3-4568-aa85-3bf2e4731dbc/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-packetengines-hamachi.cil.i [2021-11-12 23:05:55,816 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5444af28-7da3-4568-aa85-3bf2e4731dbc/bin/utaipan-vmNK8stdcF/data/5e9e7e0a0/a306df9ee7f142e487fa7afafef3c6f6/FLAGed5a7ac9a [2021-11-12 23:05:56,208 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5444af28-7da3-4568-aa85-3bf2e4731dbc/bin/utaipan-vmNK8stdcF/data/5e9e7e0a0/a306df9ee7f142e487fa7afafef3c6f6 [2021-11-12 23:05:56,211 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-12 23:05:56,212 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-12 23:05:56,226 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-12 23:05:56,226 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-12 23:05:56,237 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-12 23:05:56,237 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 11:05:56" (1/1) ... [2021-11-12 23:05:56,238 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@372bfa4c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:05:56, skipping insertion in model container [2021-11-12 23:05:56,238 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 11:05:56" (1/1) ... [2021-11-12 23:05:56,243 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-12 23:05:56,429 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 23:05:59,368 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_5444af28-7da3-4568-aa85-3bf2e4731dbc/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-packetengines-hamachi.cil.i[322818,322831] [2021-11-12 23:05:59,372 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_5444af28-7da3-4568-aa85-3bf2e4731dbc/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-packetengines-hamachi.cil.i[322987,323000] [2021-11-12 23:05:59,372 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_5444af28-7da3-4568-aa85-3bf2e4731dbc/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-packetengines-hamachi.cil.i[323154,323167] [2021-11-12 23:05:59,373 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_5444af28-7da3-4568-aa85-3bf2e4731dbc/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-packetengines-hamachi.cil.i[323322,323335] [2021-11-12 23:05:59,396 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 23:05:59,481 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-12 23:05:59,546 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 23:05:59,934 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_5444af28-7da3-4568-aa85-3bf2e4731dbc/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-packetengines-hamachi.cil.i[322818,322831] [2021-11-12 23:05:59,934 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_5444af28-7da3-4568-aa85-3bf2e4731dbc/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-packetengines-hamachi.cil.i[322987,323000] [2021-11-12 23:05:59,935 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_5444af28-7da3-4568-aa85-3bf2e4731dbc/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-packetengines-hamachi.cil.i[323154,323167] [2021-11-12 23:05:59,935 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_5444af28-7da3-4568-aa85-3bf2e4731dbc/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-packetengines-hamachi.cil.i[323322,323335] [2021-11-12 23:05:59,940 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 23:05:59,983 INFO L203 MainTranslator]: Completed pre-run [2021-11-12 23:06:00,308 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_5444af28-7da3-4568-aa85-3bf2e4731dbc/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-packetengines-hamachi.cil.i[322818,322831] [2021-11-12 23:06:00,309 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_5444af28-7da3-4568-aa85-3bf2e4731dbc/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-packetengines-hamachi.cil.i[322987,323000] [2021-11-12 23:06:00,309 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_5444af28-7da3-4568-aa85-3bf2e4731dbc/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-packetengines-hamachi.cil.i[323154,323167] [2021-11-12 23:06:00,310 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_5444af28-7da3-4568-aa85-3bf2e4731dbc/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-packetengines-hamachi.cil.i[323322,323335] [2021-11-12 23:06:00,319 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 23:06:00,580 INFO L208 MainTranslator]: Completed translation [2021-11-12 23:06:00,581 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:06:00 WrapperNode [2021-11-12 23:06:00,581 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-12 23:06:00,582 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-12 23:06:00,582 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-12 23:06:00,583 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-12 23:06:00,590 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:06:00" (1/1) ... [2021-11-12 23:06:00,722 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:06:00" (1/1) ... [2021-11-12 23:06:00,952 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-12 23:06:00,953 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-12 23:06:00,954 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-12 23:06:00,954 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-12 23:06:00,963 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:06:00" (1/1) ... [2021-11-12 23:06:00,963 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:06:00" (1/1) ... [2021-11-12 23:06:01,010 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:06:00" (1/1) ... [2021-11-12 23:06:01,010 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:06:00" (1/1) ... [2021-11-12 23:06:01,149 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:06:00" (1/1) ... [2021-11-12 23:06:01,175 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:06:00" (1/1) ... [2021-11-12 23:06:01,206 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:06:00" (1/1) ... [2021-11-12 23:06:01,256 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-12 23:06:01,258 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-12 23:06:01,258 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-12 23:06:01,259 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-12 23:06:01,259 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:06:00" (1/1) ... [2021-11-12 23:06:01,267 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 23:06:01,278 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5444af28-7da3-4568-aa85-3bf2e4731dbc/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 23:06:01,297 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5444af28-7da3-4568-aa85-3bf2e4731dbc/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-12 23:06:01,300 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5444af28-7da3-4568-aa85-3bf2e4731dbc/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-12 23:06:01,335 INFO L130 BoogieDeclarations]: Found specification of procedure check_if_running [2021-11-12 23:06:01,335 INFO L138 BoogieDeclarations]: Found implementation of procedure check_if_running [2021-11-12 23:06:01,335 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2021-11-12 23:06:01,336 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2021-11-12 23:06:01,336 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-12 23:06:01,336 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-12 23:06:01,336 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2021-11-12 23:06:01,336 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2021-11-12 23:06:01,336 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-11-12 23:06:01,337 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-11-12 23:06:01,337 INFO L130 BoogieDeclarations]: Found specification of procedure hamachi_close [2021-11-12 23:06:01,337 INFO L138 BoogieDeclarations]: Found implementation of procedure hamachi_close [2021-11-12 23:06:01,337 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-12 23:06:01,337 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-12 23:06:01,337 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_sync_single_for_cpu [2021-11-12 23:06:01,338 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_sync_single_for_cpu [2021-11-12 23:06:01,338 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-11-12 23:06:01,338 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-11-12 23:06:01,338 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-11-12 23:06:01,338 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-11-12 23:06:01,338 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_hamachi_private [2021-11-12 23:06:01,339 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_hamachi_private [2021-11-12 23:06:01,339 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~C_INT~structend~~TO~C_INT [2021-11-12 23:06:01,339 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~C_INT~structend~~TO~C_INT [2021-11-12 23:06:01,339 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-12 23:06:01,339 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-12 23:06:01,339 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2021-11-12 23:06:01,340 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2021-11-12 23:06:01,340 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2021-11-12 23:06:01,340 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2021-11-12 23:06:01,340 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-12 23:06:01,340 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-12 23:06:01,340 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2021-11-12 23:06:01,341 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2021-11-12 23:06:01,341 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-12 23:06:01,341 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2021-11-12 23:06:01,341 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2021-11-12 23:06:01,341 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2021-11-12 23:06:01,341 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-12 23:06:01,342 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-12 23:06:01,342 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-12 23:06:01,342 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-11-12 23:06:01,342 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-11-12 23:06:01,342 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-11-12 23:06:01,342 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-11-12 23:06:01,343 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-12 23:06:01,343 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-12 23:06:01,343 INFO L130 BoogieDeclarations]: Found specification of procedure set_rx_mode [2021-11-12 23:06:01,343 INFO L138 BoogieDeclarations]: Found implementation of procedure set_rx_mode [2021-11-12 23:06:01,343 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-11-12 23:06:01,343 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-11-12 23:06:01,344 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2021-11-12 23:06:01,344 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2021-11-12 23:06:01,344 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-11-12 23:06:01,344 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-11-12 23:06:01,344 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-11-12 23:06:01,344 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-11-12 23:06:01,345 INFO L130 BoogieDeclarations]: Found specification of procedure __netdev_alloc_skb [2021-11-12 23:06:01,345 INFO L138 BoogieDeclarations]: Found implementation of procedure __netdev_alloc_skb [2021-11-12 23:06:01,345 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2021-11-12 23:06:01,345 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2021-11-12 23:06:01,345 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2021-11-12 23:06:01,345 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2021-11-12 23:06:01,346 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-12 23:06:01,346 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2021-11-12 23:06:01,346 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2021-11-12 23:06:01,346 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2021-11-12 23:06:01,346 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2021-11-12 23:06:01,346 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2021-11-12 23:06:01,346 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2021-11-12 23:06:01,347 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-12 23:06:01,347 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-12 23:06:01,347 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-11-12 23:06:01,347 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-11-12 23:06:01,347 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-12 23:06:01,347 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2021-11-12 23:06:01,348 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2021-11-12 23:06:01,348 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-12 23:06:01,348 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-12 23:06:01,348 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-11-12 23:06:01,348 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_lock_of_hamachi_private [2021-11-12 23:06:01,349 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_lock_of_hamachi_private [2021-11-12 23:06:01,349 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-11-12 23:06:01,349 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-11-12 23:06:01,349 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2021-11-12 23:06:01,349 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2021-11-12 23:06:01,349 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2021-11-12 23:06:01,350 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2021-11-12 23:06:01,350 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2021-11-12 23:06:01,350 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2021-11-12 23:06:01,350 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2021-11-12 23:06:01,350 INFO L130 BoogieDeclarations]: Found specification of procedure writeb [2021-11-12 23:06:01,350 INFO L138 BoogieDeclarations]: Found implementation of procedure writeb [2021-11-12 23:06:01,351 INFO L130 BoogieDeclarations]: Found specification of procedure writew [2021-11-12 23:06:01,351 INFO L138 BoogieDeclarations]: Found implementation of procedure writew [2021-11-12 23:06:01,351 INFO L130 BoogieDeclarations]: Found specification of procedure hamachi_nway_reset [2021-11-12 23:06:01,351 INFO L138 BoogieDeclarations]: Found implementation of procedure hamachi_nway_reset [2021-11-12 23:06:01,352 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_read [2021-11-12 23:06:01,352 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_read [2021-11-12 23:06:01,352 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-12 23:06:01,352 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-12 23:06:01,352 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-12 23:06:01,352 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-12 23:06:01,353 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-12 23:06:01,353 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-12 23:06:01,353 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2021-11-12 23:06:01,353 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-12 23:06:01,353 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-12 23:06:01,353 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-12 23:06:01,354 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-11-12 23:06:01,354 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-11-12 23:06:01,354 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_hamachi_exit_15_2 [2021-11-12 23:06:01,354 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_hamachi_exit_15_2 [2021-11-12 23:06:01,354 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2021-11-12 23:06:01,355 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2021-11-12 23:06:01,355 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2021-11-12 23:06:01,355 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2021-11-12 23:06:01,355 INFO L130 BoogieDeclarations]: Found specification of procedure hamachi_open [2021-11-12 23:06:01,355 INFO L138 BoogieDeclarations]: Found implementation of procedure hamachi_open [2021-11-12 23:06:01,355 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-11-12 23:06:01,356 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-11-12 23:06:01,356 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2021-11-12 23:06:01,356 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2021-11-12 23:06:01,356 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2021-11-12 23:06:01,356 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2021-11-12 23:06:01,356 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-12 23:06:01,356 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2021-11-12 23:06:01,357 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2021-11-12 23:06:01,357 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-12 23:06:01,357 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2021-11-12 23:06:01,357 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2021-11-12 23:06:01,357 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-12 23:06:01,357 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-12 23:06:01,358 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2021-11-12 23:06:01,358 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-12 23:06:01,358 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-12 23:06:01,358 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2021-11-12 23:06:01,358 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2021-11-12 23:06:01,358 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 23:06:01,359 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 23:06:01,359 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-11-12 23:06:01,359 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-11-12 23:06:01,359 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_irq_68 [2021-11-12 23:06:01,359 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_irq_68 [2021-11-12 23:06:01,359 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-12 23:06:01,360 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-12 23:06:01,360 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2021-11-12 23:06:01,360 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2021-11-12 23:06:01,360 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2021-11-12 23:06:01,360 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2021-11-12 23:06:01,360 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-11-12 23:06:01,360 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-11-12 23:06:01,361 INFO L130 BoogieDeclarations]: Found specification of procedure hamachi_remove_one [2021-11-12 23:06:01,361 INFO L138 BoogieDeclarations]: Found implementation of procedure hamachi_remove_one [2021-11-12 23:06:01,361 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~C_INT [2021-11-12 23:06:01,361 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~C_INT [2021-11-12 23:06:01,361 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-11-12 23:06:01,362 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2021-11-12 23:06:01,362 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2021-11-12 23:06:01,362 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2021-11-12 23:06:01,362 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-12 23:06:01,362 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-12 23:06:01,362 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irq_69 [2021-11-12 23:06:01,362 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irq_69 [2021-11-12 23:06:01,363 INFO L130 BoogieDeclarations]: Found specification of procedure hamachi_get_stats [2021-11-12 23:06:01,363 INFO L138 BoogieDeclarations]: Found implementation of procedure hamachi_get_stats [2021-11-12 23:06:01,363 INFO L130 BoogieDeclarations]: Found specification of procedure hamachi_tx_timeout [2021-11-12 23:06:01,363 INFO L138 BoogieDeclarations]: Found implementation of procedure hamachi_tx_timeout [2021-11-12 23:06:01,363 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-12 23:06:01,363 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-12 23:06:01,364 INFO L130 BoogieDeclarations]: Found specification of procedure readw [2021-11-12 23:06:01,364 INFO L138 BoogieDeclarations]: Found implementation of procedure readw [2021-11-12 23:06:01,364 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2021-11-12 23:06:01,364 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2021-11-12 23:06:01,364 INFO L130 BoogieDeclarations]: Found specification of procedure hamachi_timer [2021-11-12 23:06:01,364 INFO L138 BoogieDeclarations]: Found implementation of procedure hamachi_timer [2021-11-12 23:06:01,365 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-11-12 23:06:01,365 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-11-12 23:06:01,365 INFO L130 BoogieDeclarations]: Found specification of procedure readb [2021-11-12 23:06:01,365 INFO L138 BoogieDeclarations]: Found implementation of procedure readb [2021-11-12 23:06:02,420 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-12 23:06:24,931 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-12 23:06:25,013 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-12 23:06:25,013 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-12 23:06:25,018 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 11:06:25 BoogieIcfgContainer [2021-11-12 23:06:25,018 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-12 23:06:25,020 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-12 23:06:25,020 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-12 23:06:25,023 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-12 23:06:25,024 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 11:05:56" (1/3) ... [2021-11-12 23:06:25,025 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@144c9c2a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 11:06:25, skipping insertion in model container [2021-11-12 23:06:25,025 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:06:00" (2/3) ... [2021-11-12 23:06:25,025 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@144c9c2a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 11:06:25, skipping insertion in model container [2021-11-12 23:06:25,025 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 11:06:25" (3/3) ... [2021-11-12 23:06:25,027 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-packetengines-hamachi.cil.i [2021-11-12 23:06:25,032 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-12 23:06:25,032 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-11-12 23:06:25,095 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-12 23:06:25,101 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 23:06:25,101 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-11-12 23:06:25,156 INFO L276 IsEmpty]: Start isEmpty. Operand has 1568 states, 1094 states have (on average 1.287020109689214) internal successors, (1408), 1121 states have internal predecessors, (1408), 397 states have call successors, (397), 75 states have call predecessors, (397), 74 states have return successors, (390), 377 states have call predecessors, (390), 390 states have call successors, (390) [2021-11-12 23:06:25,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2021-11-12 23:06:25,178 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:06:25,179 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:06:25,180 INFO L402 AbstractCegarLoop]: === Iteration 1 === 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 23:06:25,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:06:25,185 INFO L85 PathProgramCache]: Analyzing trace with hash -1867001504, now seen corresponding path program 1 times [2021-11-12 23:06:25,202 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:06:25,203 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1248910301] [2021-11-12 23:06:25,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:06:25,204 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:06:25,204 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5444af28-7da3-4568-aa85-3bf2e4731dbc/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:06:25,205 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5444af28-7da3-4568-aa85-3bf2e4731dbc/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:06:25,233 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5444af28-7da3-4568-aa85-3bf2e4731dbc/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-12 23:06:27,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:06:27,179 INFO L263 TraceCheckSpWp]: Trace formula consists of 1475 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-12 23:06:27,190 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:06:27,713 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 324 trivial. 0 not checked. [2021-11-12 23:06:27,713 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:06:28,140 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 351 trivial. 0 not checked. [2021-11-12 23:06:28,141 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:06:28,141 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1248910301] [2021-11-12 23:06:28,142 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1248910301] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:06:28,142 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:06:28,142 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-12 23:06:28,144 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1311598309] [2021-11-12 23:06:28,145 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:06:28,152 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-12 23:06:28,152 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:06:28,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-12 23:06:28,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 23:06:28,202 INFO L87 Difference]: Start difference. First operand has 1568 states, 1094 states have (on average 1.287020109689214) internal successors, (1408), 1121 states have internal predecessors, (1408), 397 states have call successors, (397), 75 states have call predecessors, (397), 74 states have return successors, (390), 377 states have call predecessors, (390), 390 states have call successors, (390) 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, (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 23:06:30,442 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.23s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 23:06:33,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:06:33,919 INFO L93 Difference]: Finished difference Result 5641 states and 8053 transitions. [2021-11-12 23:06:33,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 23:06:33,922 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, (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 129 [2021-11-12 23:06:33,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:06:33,991 INFO L225 Difference]: With dead ends: 5641 [2021-11-12 23:06:33,992 INFO L226 Difference]: Without dead ends: 4069 [2021-11-12 23:06:34,014 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 256 GetRequests, 254 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 23:06:34,021 INFO L933 BasicCegarLoop]: 2926 mSDtfsCounter, 3584 mSDsluCounter, 4920 mSDsCounter, 0 mSdLazyCounter, 677 mSolverCounterSat, 14 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4801.09ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3584 SdHoareTripleChecker+Valid, 7846 SdHoareTripleChecker+Invalid, 692 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 68.48ms SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 677 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5194.80ms IncrementalHoareTripleChecker+Time [2021-11-12 23:06:34,029 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3584 Valid, 7846 Invalid, 692 Unknown, 0 Unchecked, 68.48ms Time], IncrementalHoareTripleChecker [14 Valid, 677 Invalid, 1 Unknown, 0 Unchecked, 5194.80ms Time] [2021-11-12 23:06:34,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4069 states. [2021-11-12 23:06:34,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4069 to 4015. [2021-11-12 23:06:34,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4015 states, 2803 states have (on average 1.276489475561898) internal successors, (3578), 2882 states have internal predecessors, (3578), 1002 states have call successors, (1002), 210 states have call predecessors, (1002), 207 states have return successors, (1016), 949 states have call predecessors, (1016), 998 states have call successors, (1016) [2021-11-12 23:06:34,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4015 states to 4015 states and 5596 transitions. [2021-11-12 23:06:34,486 INFO L78 Accepts]: Start accepts. Automaton has 4015 states and 5596 transitions. Word has length 129 [2021-11-12 23:06:34,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:06:34,489 INFO L470 AbstractCegarLoop]: Abstraction has 4015 states and 5596 transitions. [2021-11-12 23:06:34,489 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, (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 23:06:34,489 INFO L276 IsEmpty]: Start isEmpty. Operand 4015 states and 5596 transitions. [2021-11-12 23:06:34,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2021-11-12 23:06:34,503 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:06:34,504 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:06:34,553 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5444af28-7da3-4568-aa85-3bf2e4731dbc/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-12 23:06:34,717 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5444af28-7da3-4568-aa85-3bf2e4731dbc/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:06:34,718 INFO L402 AbstractCegarLoop]: === Iteration 2 === 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 23:06:34,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:06:34,718 INFO L85 PathProgramCache]: Analyzing trace with hash -1913605573, now seen corresponding path program 1 times [2021-11-12 23:06:34,720 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:06:34,721 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [641055174] [2021-11-12 23:06:34,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:06:34,721 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:06:34,721 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5444af28-7da3-4568-aa85-3bf2e4731dbc/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:06:34,727 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5444af28-7da3-4568-aa85-3bf2e4731dbc/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:06:34,773 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5444af28-7da3-4568-aa85-3bf2e4731dbc/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-12 23:06:36,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:06:36,611 INFO L263 TraceCheckSpWp]: Trace formula consists of 1440 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-12 23:06:36,618 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:06:36,920 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 324 trivial. 0 not checked. [2021-11-12 23:06:36,920 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:06:37,239 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 351 trivial. 0 not checked. [2021-11-12 23:06:37,239 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:06:37,239 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [641055174] [2021-11-12 23:06:37,239 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [641055174] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:06:37,239 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:06:37,240 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-12 23:06:37,240 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1269767820] [2021-11-12 23:06:37,240 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:06:37,242 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-12 23:06:37,242 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:06:37,242 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-12 23:06:37,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 23:06:37,243 INFO L87 Difference]: Start difference. First operand 4015 states and 5596 transitions. Second operand has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 4 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) [2021-11-12 23:06:39,425 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 23:06:44,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:06:44,949 INFO L93 Difference]: Finished difference Result 15601 states and 21759 transitions. [2021-11-12 23:06:44,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 23:06:44,950 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 4 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) Word has length 129 [2021-11-12 23:06:44,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:06:45,061 INFO L225 Difference]: With dead ends: 15601 [2021-11-12 23:06:45,061 INFO L226 Difference]: Without dead ends: 11609 [2021-11-12 23:06:45,084 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 256 GetRequests, 254 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 23:06:45,085 INFO L933 BasicCegarLoop]: 2868 mSDtfsCounter, 5438 mSDsluCounter, 3372 mSDsCounter, 0 mSdLazyCounter, 808 mSolverCounterSat, 728 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6345.73ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 5438 SdHoareTripleChecker+Valid, 6240 SdHoareTripleChecker+Invalid, 1537 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 47.53ms SdHoareTripleChecker+Time, 728 IncrementalHoareTripleChecker+Valid, 808 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7024.97ms IncrementalHoareTripleChecker+Time [2021-11-12 23:06:45,088 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5438 Valid, 6240 Invalid, 1537 Unknown, 0 Unchecked, 47.53ms Time], IncrementalHoareTripleChecker [728 Valid, 808 Invalid, 1 Unknown, 0 Unchecked, 7024.97ms Time] [2021-11-12 23:06:45,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11609 states. [2021-11-12 23:06:45,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11609 to 11583. [2021-11-12 23:06:45,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11583 states, 8123 states have (on average 1.2796996183675982) internal successors, (10395), 8338 states have internal predecessors, (10395), 2844 states have call successors, (2844), 620 states have call predecessors, (2844), 613 states have return successors, (2894), 2705 states have call predecessors, (2894), 2840 states have call successors, (2894) [2021-11-12 23:06:45,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11583 states to 11583 states and 16133 transitions. [2021-11-12 23:06:45,887 INFO L78 Accepts]: Start accepts. Automaton has 11583 states and 16133 transitions. Word has length 129 [2021-11-12 23:06:45,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:06:45,890 INFO L470 AbstractCegarLoop]: Abstraction has 11583 states and 16133 transitions. [2021-11-12 23:06:45,891 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 4 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) [2021-11-12 23:06:45,891 INFO L276 IsEmpty]: Start isEmpty. Operand 11583 states and 16133 transitions. [2021-11-12 23:06:45,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2021-11-12 23:06:45,896 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:06:45,896 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:06:45,939 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5444af28-7da3-4568-aa85-3bf2e4731dbc/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-12 23:06:46,113 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5444af28-7da3-4568-aa85-3bf2e4731dbc/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:06:46,113 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 23:06:46,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:06:46,114 INFO L85 PathProgramCache]: Analyzing trace with hash 1650993285, now seen corresponding path program 1 times [2021-11-12 23:06:46,115 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:06:46,115 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [413653052] [2021-11-12 23:06:46,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:06:46,116 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:06:46,116 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5444af28-7da3-4568-aa85-3bf2e4731dbc/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:06:46,117 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5444af28-7da3-4568-aa85-3bf2e4731dbc/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:06:46,120 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5444af28-7da3-4568-aa85-3bf2e4731dbc/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-12 23:06:47,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:06:47,902 INFO L263 TraceCheckSpWp]: Trace formula consists of 1476 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-12 23:06:47,908 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:06:48,238 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 324 trivial. 0 not checked. [2021-11-12 23:06:48,238 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:06:48,570 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 351 trivial. 0 not checked. [2021-11-12 23:06:48,570 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:06:48,571 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [413653052] [2021-11-12 23:06:48,571 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [413653052] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:06:48,571 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:06:48,571 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-12 23:06:48,571 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1967286560] [2021-11-12 23:06:48,572 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:06:48,572 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-12 23:06:48,572 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:06:48,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-12 23:06:48,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-12 23:06:48,573 INFO L87 Difference]: Start difference. First operand 11583 states and 16133 transitions. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 3 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2021-11-12 23:06:50,805 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.23s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 23:06:51,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:06:51,741 INFO L93 Difference]: Finished difference Result 32549 states and 45398 transitions. [2021-11-12 23:06:51,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-12 23:06:51,742 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 3 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 134 [2021-11-12 23:06:51,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:06:51,927 INFO L225 Difference]: With dead ends: 32549 [2021-11-12 23:06:51,927 INFO L226 Difference]: Without dead ends: 20989 [2021-11-12 23:06:51,995 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 266 GetRequests, 265 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-12 23:06:52,000 INFO L933 BasicCegarLoop]: 2510 mSDtfsCounter, 1823 mSDsluCounter, 2092 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2368.61ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1823 SdHoareTripleChecker+Valid, 4602 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 16.15ms SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2416.32ms IncrementalHoareTripleChecker+Time [2021-11-12 23:06:52,002 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1823 Valid, 4602 Invalid, 65 Unknown, 0 Unchecked, 16.15ms Time], IncrementalHoareTripleChecker [7 Valid, 57 Invalid, 1 Unknown, 0 Unchecked, 2416.32ms Time] [2021-11-12 23:06:52,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20989 states. [2021-11-12 23:06:53,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20989 to 20952. [2021-11-12 23:06:53,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20952 states, 14585 states have (on average 1.2810421666095304) internal successors, (18684), 14995 states have internal predecessors, (18684), 5205 states have call successors, (5205), 1172 states have call predecessors, (5205), 1159 states have return successors, (5318), 4925 states have call predecessors, (5318), 5201 states have call successors, (5318) [2021-11-12 23:06:53,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20952 states to 20952 states and 29207 transitions. [2021-11-12 23:06:53,389 INFO L78 Accepts]: Start accepts. Automaton has 20952 states and 29207 transitions. Word has length 134 [2021-11-12 23:06:53,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:06:53,389 INFO L470 AbstractCegarLoop]: Abstraction has 20952 states and 29207 transitions. [2021-11-12 23:06:53,390 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 3 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2021-11-12 23:06:53,390 INFO L276 IsEmpty]: Start isEmpty. Operand 20952 states and 29207 transitions. [2021-11-12 23:06:53,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2021-11-12 23:06:53,398 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:06:53,398 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 9, 9, 9, 9, 9, 9, 4, 4, 4, 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] [2021-11-12 23:06:53,449 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5444af28-7da3-4568-aa85-3bf2e4731dbc/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-12 23:06:53,621 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5444af28-7da3-4568-aa85-3bf2e4731dbc/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:06:53,621 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-12 23:06:53,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:06:53,622 INFO L85 PathProgramCache]: Analyzing trace with hash 1490919160, now seen corresponding path program 1 times [2021-11-12 23:06:53,624 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:06:53,624 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1722695590] [2021-11-12 23:06:53,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:06:53,624 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:06:53,624 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5444af28-7da3-4568-aa85-3bf2e4731dbc/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:06:53,630 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5444af28-7da3-4568-aa85-3bf2e4731dbc/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:06:53,636 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5444af28-7da3-4568-aa85-3bf2e4731dbc/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-12 23:06:55,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:06:55,430 INFO L263 TraceCheckSpWp]: Trace formula consists of 1567 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 23:06:55,436 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:06:56,669 INFO L134 CoverageAnalysis]: Checked inductivity of 486 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 486 trivial. 0 not checked. [2021-11-12 23:06:56,669 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:06:57,338 INFO L134 CoverageAnalysis]: Checked inductivity of 486 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 486 trivial. 0 not checked. [2021-11-12 23:06:57,338 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:06:57,338 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1722695590] [2021-11-12 23:06:57,339 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1722695590] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:06:57,339 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:06:57,339 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 5] imperfect sequences [] total 7 [2021-11-12 23:06:57,339 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2041484922] [2021-11-12 23:06:57,339 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:06:57,340 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-12 23:06:57,340 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:06:57,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-12 23:06:57,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-12 23:06:57,341 INFO L87 Difference]: Start difference. First operand 20952 states and 29207 transitions. Second operand has 7 states, 7 states have (on average 10.0) internal successors, (70), 5 states have internal predecessors, (70), 2 states have call successors, (39), 4 states have call predecessors, (39), 2 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2021-11-12 23:06:58,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:06:58,283 INFO L93 Difference]: Finished difference Result 20958 states and 29212 transitions. [2021-11-12 23:06:58,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-12 23:06:58,284 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.0) internal successors, (70), 5 states have internal predecessors, (70), 2 states have call successors, (39), 4 states have call predecessors, (39), 2 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) Word has length 187 [2021-11-12 23:06:58,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:06:58,386 INFO L225 Difference]: With dead ends: 20958 [2021-11-12 23:06:58,386 INFO L226 Difference]: Without dead ends: 20956 [2021-11-12 23:06:58,397 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 375 GetRequests, 367 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2021-11-12 23:06:58,399 INFO L933 BasicCegarLoop]: 2159 mSDtfsCounter, 2072 mSDsluCounter, 6454 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 75.84ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2083 SdHoareTripleChecker+Valid, 8613 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 21.63ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 83.44ms IncrementalHoareTripleChecker+Time [2021-11-12 23:06:58,400 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2083 Valid, 8613 Invalid, 34 Unknown, 0 Unchecked, 21.63ms Time], IncrementalHoareTripleChecker [1 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 83.44ms Time] [2021-11-12 23:06:58,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20956 states. [2021-11-12 23:06:59,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20956 to 20956. [2021-11-12 23:06:59,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20956 states, 14588 states have (on average 1.2809843707156567) internal successors, (18687), 14998 states have internal predecessors, (18687), 5205 states have call successors, (5205), 1173 states have call predecessors, (5205), 1160 states have return successors, (5318), 4925 states have call predecessors, (5318), 5201 states have call successors, (5318) [2021-11-12 23:06:59,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20956 states to 20956 states and 29210 transitions. [2021-11-12 23:06:59,810 INFO L78 Accepts]: Start accepts. Automaton has 20956 states and 29210 transitions. Word has length 187 [2021-11-12 23:06:59,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:06:59,811 INFO L470 AbstractCegarLoop]: Abstraction has 20956 states and 29210 transitions. [2021-11-12 23:06:59,812 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.0) internal successors, (70), 5 states have internal predecessors, (70), 2 states have call successors, (39), 4 states have call predecessors, (39), 2 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2021-11-12 23:06:59,812 INFO L276 IsEmpty]: Start isEmpty. Operand 20956 states and 29210 transitions. [2021-11-12 23:06:59,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2021-11-12 23:06:59,821 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:06:59,821 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 9, 9, 9, 9, 9, 9, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:06:59,870 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5444af28-7da3-4568-aa85-3bf2e4731dbc/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-12 23:07:00,037 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5444af28-7da3-4568-aa85-3bf2e4731dbc/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:07:00,037 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-12 23:07:00,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:07:00,038 INFO L85 PathProgramCache]: Analyzing trace with hash -1780724513, now seen corresponding path program 1 times [2021-11-12 23:07:00,040 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:07:00,040 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [332472950] [2021-11-12 23:07:00,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:07:00,040 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:07:00,040 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5444af28-7da3-4568-aa85-3bf2e4731dbc/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:07:00,042 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5444af28-7da3-4568-aa85-3bf2e4731dbc/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:07:00,082 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5444af28-7da3-4568-aa85-3bf2e4731dbc/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-12 23:07:01,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:07:01,824 INFO L263 TraceCheckSpWp]: Trace formula consists of 1574 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 23:07:01,830 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:07:02,805 INFO L134 CoverageAnalysis]: Checked inductivity of 488 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 486 trivial. 0 not checked. [2021-11-12 23:07:02,805 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:07:03,463 INFO L134 CoverageAnalysis]: Checked inductivity of 488 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 486 trivial. 0 not checked. [2021-11-12 23:07:03,463 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:07:03,463 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [332472950] [2021-11-12 23:07:03,463 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [332472950] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-12 23:07:03,464 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-12 23:07:03,464 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2021-11-12 23:07:03,464 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [683437759] [2021-11-12 23:07:03,464 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:07:03,464 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-12 23:07:03,465 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:07:03,465 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-12 23:07:03,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-12 23:07:03,465 INFO L87 Difference]: Start difference. First operand 20956 states and 29210 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-11-12 23:07:04,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:07:04,612 INFO L93 Difference]: Finished difference Result 20962 states and 29215 transitions. [2021-11-12 23:07:04,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-12 23:07:04,614 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 192 [2021-11-12 23:07:04,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:07:04,726 INFO L225 Difference]: With dead ends: 20962 [2021-11-12 23:07:04,726 INFO L226 Difference]: Without dead ends: 20960 [2021-11-12 23:07:04,738 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 385 GetRequests, 377 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2021-11-12 23:07:04,739 INFO L933 BasicCegarLoop]: 2162 mSDtfsCounter, 2097 mSDsluCounter, 4305 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 46.88ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2107 SdHoareTripleChecker+Valid, 6467 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 17.01ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 51.56ms IncrementalHoareTripleChecker+Time [2021-11-12 23:07:04,739 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2107 Valid, 6467 Invalid, 20 Unknown, 0 Unchecked, 17.01ms Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 51.56ms Time] [2021-11-12 23:07:04,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20960 states. [2021-11-12 23:07:05,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20960 to 20960. [2021-11-12 23:07:06,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20960 states, 14591 states have (on average 1.2809265985881708) internal successors, (18690), 15001 states have internal predecessors, (18690), 5205 states have call successors, (5205), 1174 states have call predecessors, (5205), 1161 states have return successors, (5318), 4925 states have call predecessors, (5318), 5201 states have call successors, (5318) [2021-11-12 23:07:06,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20960 states to 20960 states and 29213 transitions. [2021-11-12 23:07:06,095 INFO L78 Accepts]: Start accepts. Automaton has 20960 states and 29213 transitions. Word has length 192 [2021-11-12 23:07:06,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:07:06,096 INFO L470 AbstractCegarLoop]: Abstraction has 20960 states and 29213 transitions. [2021-11-12 23:07:06,096 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-11-12 23:07:06,097 INFO L276 IsEmpty]: Start isEmpty. Operand 20960 states and 29213 transitions. [2021-11-12 23:07:06,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2021-11-12 23:07:06,108 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:07:06,108 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 9, 9, 9, 9, 9, 9, 5, 5, 5, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:07:06,155 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5444af28-7da3-4568-aa85-3bf2e4731dbc/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-12 23:07:06,333 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5444af28-7da3-4568-aa85-3bf2e4731dbc/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:07:06,333 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 23:07:06,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:07:06,334 INFO L85 PathProgramCache]: Analyzing trace with hash -1912783224, now seen corresponding path program 1 times [2021-11-12 23:07:06,336 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:07:06,336 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1311335934] [2021-11-12 23:07:06,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:07:06,336 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:07:06,336 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5444af28-7da3-4568-aa85-3bf2e4731dbc/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:07:06,339 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5444af28-7da3-4568-aa85-3bf2e4731dbc/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:07:06,379 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5444af28-7da3-4568-aa85-3bf2e4731dbc/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-12 23:07:08,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:07:08,266 INFO L263 TraceCheckSpWp]: Trace formula consists of 1627 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-12 23:07:08,270 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:07:08,642 INFO L134 CoverageAnalysis]: Checked inductivity of 504 backedges. 66 proven. 0 refuted. 0 times theorem prover too weak. 438 trivial. 0 not checked. [2021-11-12 23:07:08,642 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:07:09,074 INFO L134 CoverageAnalysis]: Checked inductivity of 504 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 494 trivial. 0 not checked. [2021-11-12 23:07:09,074 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:07:09,074 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1311335934] [2021-11-12 23:07:09,074 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1311335934] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:07:09,075 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:07:09,075 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-12 23:07:09,075 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [466796106] [2021-11-12 23:07:09,075 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:07:09,076 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-12 23:07:09,076 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:07:09,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-12 23:07:09,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 23:07:09,077 INFO L87 Difference]: Start difference. First operand 20960 states and 29213 transitions. Second operand has 4 states, 4 states have (on average 23.75) internal successors, (95), 4 states have internal predecessors, (95), 4 states have call successors, (31), 3 states have call predecessors, (31), 3 states have return successors, (29), 4 states have call predecessors, (29), 4 states have call successors, (29) [2021-11-12 23:07:11,226 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 23:07:15,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:07:15,931 INFO L93 Difference]: Finished difference Result 48873 states and 68088 transitions. [2021-11-12 23:07:15,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 23:07:15,945 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.75) internal successors, (95), 4 states have internal predecessors, (95), 4 states have call successors, (31), 3 states have call predecessors, (31), 3 states have return successors, (29), 4 states have call predecessors, (29), 4 states have call successors, (29) Word has length 207 [2021-11-12 23:07:15,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:07:16,103 INFO L225 Difference]: With dead ends: 48873 [2021-11-12 23:07:16,103 INFO L226 Difference]: Without dead ends: 34710 [2021-11-12 23:07:16,171 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 412 GetRequests, 410 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 23:07:16,172 INFO L933 BasicCegarLoop]: 4503 mSDtfsCounter, 4137 mSDsluCounter, 3765 mSDsCounter, 0 mSdLazyCounter, 818 mSolverCounterSat, 17 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4701.50ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4137 SdHoareTripleChecker+Valid, 8268 SdHoareTripleChecker+Invalid, 836 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 26.27ms SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 818 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5148.70ms IncrementalHoareTripleChecker+Time [2021-11-12 23:07:16,173 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4137 Valid, 8268 Invalid, 836 Unknown, 0 Unchecked, 26.27ms Time], IncrementalHoareTripleChecker [17 Valid, 818 Invalid, 1 Unknown, 0 Unchecked, 5148.70ms Time] [2021-11-12 23:07:16,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34710 states. [2021-11-12 23:07:18,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34710 to 34676. [2021-11-12 23:07:18,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34676 states, 24149 states have (on average 1.2797217276077684) internal successors, (30904), 24819 states have internal predecessors, (30904), 8589 states have call successors, (8589), 1956 states have call predecessors, (8589), 1935 states have return successors, (8780), 8135 states have call predecessors, (8780), 8585 states have call successors, (8780) [2021-11-12 23:07:18,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34676 states to 34676 states and 48273 transitions. [2021-11-12 23:07:18,310 INFO L78 Accepts]: Start accepts. Automaton has 34676 states and 48273 transitions. Word has length 207 [2021-11-12 23:07:18,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:07:18,311 INFO L470 AbstractCegarLoop]: Abstraction has 34676 states and 48273 transitions. [2021-11-12 23:07:18,311 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.75) internal successors, (95), 4 states have internal predecessors, (95), 4 states have call successors, (31), 3 states have call predecessors, (31), 3 states have return successors, (29), 4 states have call predecessors, (29), 4 states have call successors, (29) [2021-11-12 23:07:18,311 INFO L276 IsEmpty]: Start isEmpty. Operand 34676 states and 48273 transitions. [2021-11-12 23:07:18,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2021-11-12 23:07:18,328 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:07:18,329 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 9, 9, 9, 9, 9, 9, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:07:18,377 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5444af28-7da3-4568-aa85-3bf2e4731dbc/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-12 23:07:18,548 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5444af28-7da3-4568-aa85-3bf2e4731dbc/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:07:18,548 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-12 23:07:18,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:07:18,549 INFO L85 PathProgramCache]: Analyzing trace with hash -2008133864, now seen corresponding path program 1 times [2021-11-12 23:07:18,551 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:07:18,551 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1928680297] [2021-11-12 23:07:18,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:07:18,551 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:07:18,551 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5444af28-7da3-4568-aa85-3bf2e4731dbc/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:07:18,553 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5444af28-7da3-4568-aa85-3bf2e4731dbc/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:07:18,593 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5444af28-7da3-4568-aa85-3bf2e4731dbc/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-12 23:07:20,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:07:20,527 INFO L263 TraceCheckSpWp]: Trace formula consists of 1581 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 23:07:20,532 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:07:21,547 INFO L134 CoverageAnalysis]: Checked inductivity of 494 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 490 trivial. 0 not checked. [2021-11-12 23:07:21,547 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:07:22,187 INFO L134 CoverageAnalysis]: Checked inductivity of 494 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 490 trivial. 0 not checked. [2021-11-12 23:07:22,188 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:07:22,188 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1928680297] [2021-11-12 23:07:22,188 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1928680297] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-12 23:07:22,188 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-12 23:07:22,188 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2021-11-12 23:07:22,188 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [332679043] [2021-11-12 23:07:22,188 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:07:22,189 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-12 23:07:22,189 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:07:22,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-12 23:07:22,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-12 23:07:22,190 INFO L87 Difference]: Start difference. First operand 34676 states and 48273 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-11-12 23:07:23,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:07:23,599 INFO L93 Difference]: Finished difference Result 34682 states and 48278 transitions. [2021-11-12 23:07:23,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-12 23:07:23,599 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 197 [2021-11-12 23:07:23,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:07:23,752 INFO L225 Difference]: With dead ends: 34682 [2021-11-12 23:07:23,752 INFO L226 Difference]: Without dead ends: 34680 [2021-11-12 23:07:23,771 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 395 GetRequests, 387 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2021-11-12 23:07:23,772 INFO L933 BasicCegarLoop]: 2162 mSDtfsCounter, 2097 mSDsluCounter, 4305 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 39.86ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2106 SdHoareTripleChecker+Valid, 6467 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 10.92ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 43.95ms IncrementalHoareTripleChecker+Time [2021-11-12 23:07:23,772 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2106 Valid, 6467 Invalid, 20 Unknown, 0 Unchecked, 10.92ms Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 43.95ms Time] [2021-11-12 23:07:23,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34680 states. [2021-11-12 23:07:26,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34680 to 34680. [2021-11-12 23:07:26,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34680 states, 24152 states have (on average 1.279686982444518) internal successors, (30907), 24822 states have internal predecessors, (30907), 8589 states have call successors, (8589), 1957 states have call predecessors, (8589), 1936 states have return successors, (8780), 8135 states have call predecessors, (8780), 8585 states have call successors, (8780) [2021-11-12 23:07:26,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34680 states to 34680 states and 48276 transitions. [2021-11-12 23:07:26,218 INFO L78 Accepts]: Start accepts. Automaton has 34680 states and 48276 transitions. Word has length 197 [2021-11-12 23:07:26,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:07:26,219 INFO L470 AbstractCegarLoop]: Abstraction has 34680 states and 48276 transitions. [2021-11-12 23:07:26,220 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-11-12 23:07:26,220 INFO L276 IsEmpty]: Start isEmpty. Operand 34680 states and 48276 transitions. [2021-11-12 23:07:26,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2021-11-12 23:07:26,232 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:07:26,232 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 9, 9, 9, 9, 9, 9, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:07:26,281 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5444af28-7da3-4568-aa85-3bf2e4731dbc/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-12 23:07:26,445 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5444af28-7da3-4568-aa85-3bf2e4731dbc/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:07:26,445 INFO L402 AbstractCegarLoop]: === Iteration 8 === 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 23:07:26,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:07:26,446 INFO L85 PathProgramCache]: Analyzing trace with hash -408150526, now seen corresponding path program 1 times [2021-11-12 23:07:26,447 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:07:26,447 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [499957316] [2021-11-12 23:07:26,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:07:26,448 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:07:26,448 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5444af28-7da3-4568-aa85-3bf2e4731dbc/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:07:26,448 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5444af28-7da3-4568-aa85-3bf2e4731dbc/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:07:26,449 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5444af28-7da3-4568-aa85-3bf2e4731dbc/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-12 23:07:28,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:07:28,324 INFO L263 TraceCheckSpWp]: Trace formula consists of 1751 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-12 23:07:28,328 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:07:28,764 INFO L134 CoverageAnalysis]: Checked inductivity of 425 backedges. 91 proven. 0 refuted. 0 times theorem prover too weak. 334 trivial. 0 not checked. [2021-11-12 23:07:28,764 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:07:29,184 INFO L134 CoverageAnalysis]: Checked inductivity of 425 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 421 trivial. 0 not checked. [2021-11-12 23:07:29,184 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:07:29,185 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [499957316] [2021-11-12 23:07:29,185 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [499957316] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:07:29,185 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:07:29,185 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-12 23:07:29,185 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1810195026] [2021-11-12 23:07:29,185 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:07:29,186 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-12 23:07:29,186 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:07:29,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-12 23:07:29,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 23:07:29,187 INFO L87 Difference]: Start difference. First operand 34680 states and 48276 transitions. Second operand has 4 states, 4 states have (on average 30.25) internal successors, (121), 4 states have internal predecessors, (121), 4 states have call successors, (32), 3 states have call predecessors, (32), 3 states have return successors, (30), 4 states have call predecessors, (30), 4 states have call successors, (30) [2021-11-12 23:07:31,337 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 23:07:36,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:07:36,957 INFO L93 Difference]: Finished difference Result 92682 states and 128280 transitions. [2021-11-12 23:07:36,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 23:07:36,957 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 30.25) internal successors, (121), 4 states have internal predecessors, (121), 4 states have call successors, (32), 3 states have call predecessors, (32), 3 states have return successors, (30), 4 states have call predecessors, (30), 4 states have call successors, (30) Word has length 194 [2021-11-12 23:07:36,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:07:37,339 INFO L225 Difference]: With dead ends: 92682 [2021-11-12 23:07:37,340 INFO L226 Difference]: Without dead ends: 58025 [2021-11-12 23:07:37,452 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 386 GetRequests, 384 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 23:07:37,453 INFO L933 BasicCegarLoop]: 3646 mSDtfsCounter, 3371 mSDsluCounter, 3476 mSDsCounter, 0 mSdLazyCounter, 842 mSolverCounterSat, 41 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4642.92ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3371 SdHoareTripleChecker+Valid, 7122 SdHoareTripleChecker+Invalid, 884 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 17.75ms SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 842 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5052.30ms IncrementalHoareTripleChecker+Time [2021-11-12 23:07:37,454 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3371 Valid, 7122 Invalid, 884 Unknown, 0 Unchecked, 17.75ms Time], IncrementalHoareTripleChecker [41 Valid, 842 Invalid, 1 Unknown, 0 Unchecked, 5052.30ms Time] [2021-11-12 23:07:37,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58025 states. [2021-11-12 23:07:40,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58025 to 57919. [2021-11-12 23:07:40,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57919 states, 40727 states have (on average 1.272472806737545) internal successors, (51824), 41731 states have internal predecessors, (51824), 13752 states have call successors, (13752), 3494 states have call predecessors, (13752), 3437 states have return successors, (13920), 13005 states have call predecessors, (13920), 13748 states have call successors, (13920) [2021-11-12 23:07:40,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57919 states to 57919 states and 79496 transitions. [2021-11-12 23:07:40,706 INFO L78 Accepts]: Start accepts. Automaton has 57919 states and 79496 transitions. Word has length 194 [2021-11-12 23:07:40,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:07:40,707 INFO L470 AbstractCegarLoop]: Abstraction has 57919 states and 79496 transitions. [2021-11-12 23:07:40,707 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.25) internal successors, (121), 4 states have internal predecessors, (121), 4 states have call successors, (32), 3 states have call predecessors, (32), 3 states have return successors, (30), 4 states have call predecessors, (30), 4 states have call successors, (30) [2021-11-12 23:07:40,707 INFO L276 IsEmpty]: Start isEmpty. Operand 57919 states and 79496 transitions. [2021-11-12 23:07:40,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2021-11-12 23:07:40,716 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:07:40,716 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 9, 9, 9, 9, 9, 9, 4, 4, 4, 4, 3, 3, 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] [2021-11-12 23:07:40,767 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5444af28-7da3-4568-aa85-3bf2e4731dbc/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-11-12 23:07:40,929 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5444af28-7da3-4568-aa85-3bf2e4731dbc/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:07:40,929 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-12 23:07:40,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:07:40,930 INFO L85 PathProgramCache]: Analyzing trace with hash 405725247, now seen corresponding path program 1 times [2021-11-12 23:07:40,932 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:07:40,932 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1344374877] [2021-11-12 23:07:40,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:07:40,932 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:07:40,932 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5444af28-7da3-4568-aa85-3bf2e4731dbc/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:07:40,933 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5444af28-7da3-4568-aa85-3bf2e4731dbc/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:07:40,935 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5444af28-7da3-4568-aa85-3bf2e4731dbc/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-12 23:07:42,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:07:42,654 INFO L263 TraceCheckSpWp]: Trace formula consists of 1588 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 23:07:42,660 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:07:44,023 INFO L134 CoverageAnalysis]: Checked inductivity of 504 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 498 trivial. 0 not checked. [2021-11-12 23:07:44,023 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:07:44,679 INFO L134 CoverageAnalysis]: Checked inductivity of 504 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 498 trivial. 0 not checked. [2021-11-12 23:07:44,680 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:07:44,680 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1344374877] [2021-11-12 23:07:44,680 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1344374877] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-12 23:07:44,680 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-12 23:07:44,680 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2021-11-12 23:07:44,681 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [432137840] [2021-11-12 23:07:44,681 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:07:44,681 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-12 23:07:44,682 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:07:44,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-12 23:07:44,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-12 23:07:44,682 INFO L87 Difference]: Start difference. First operand 57919 states and 79496 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-11-12 23:07:47,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:07:47,082 INFO L93 Difference]: Finished difference Result 57925 states and 79501 transitions. [2021-11-12 23:07:47,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-12 23:07:47,083 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 202 [2021-11-12 23:07:47,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:07:47,292 INFO L225 Difference]: With dead ends: 57925 [2021-11-12 23:07:47,293 INFO L226 Difference]: Without dead ends: 57923 [2021-11-12 23:07:47,313 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 405 GetRequests, 397 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2021-11-12 23:07:47,314 INFO L933 BasicCegarLoop]: 2162 mSDtfsCounter, 2097 mSDsluCounter, 4305 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 39.85ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2105 SdHoareTripleChecker+Valid, 6467 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 9.82ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 44.23ms IncrementalHoareTripleChecker+Time [2021-11-12 23:07:47,314 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2105 Valid, 6467 Invalid, 20 Unknown, 0 Unchecked, 9.82ms Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 44.23ms Time] [2021-11-12 23:07:47,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57923 states. [2021-11-12 23:07:50,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57923 to 57923. [2021-11-12 23:07:50,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57923 states, 40730 states have (on average 1.2724527375398968) internal successors, (51827), 41734 states have internal predecessors, (51827), 13752 states have call successors, (13752), 3495 states have call predecessors, (13752), 3438 states have return successors, (13920), 13005 states have call predecessors, (13920), 13748 states have call successors, (13920) [2021-11-12 23:07:51,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57923 states to 57923 states and 79499 transitions. [2021-11-12 23:07:51,102 INFO L78 Accepts]: Start accepts. Automaton has 57923 states and 79499 transitions. Word has length 202 [2021-11-12 23:07:51,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:07:51,103 INFO L470 AbstractCegarLoop]: Abstraction has 57923 states and 79499 transitions. [2021-11-12 23:07:51,103 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-11-12 23:07:51,103 INFO L276 IsEmpty]: Start isEmpty. Operand 57923 states and 79499 transitions. [2021-11-12 23:07:51,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2021-11-12 23:07:51,112 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:07:51,112 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 9, 9, 9, 9, 9, 9, 5, 4, 4, 4, 4, 4, 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] [2021-11-12 23:07:51,173 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5444af28-7da3-4568-aa85-3bf2e4731dbc/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-11-12 23:07:51,325 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5444af28-7da3-4568-aa85-3bf2e4731dbc/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:07:51,325 INFO L402 AbstractCegarLoop]: === Iteration 10 === 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 23:07:51,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:07:51,326 INFO L85 PathProgramCache]: Analyzing trace with hash 631965496, now seen corresponding path program 1 times [2021-11-12 23:07:51,327 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:07:51,327 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1820632048] [2021-11-12 23:07:51,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:07:51,328 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:07:51,328 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5444af28-7da3-4568-aa85-3bf2e4731dbc/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:07:51,328 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5444af28-7da3-4568-aa85-3bf2e4731dbc/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:07:51,330 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5444af28-7da3-4568-aa85-3bf2e4731dbc/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-11-12 23:07:52,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:07:53,103 INFO L263 TraceCheckSpWp]: Trace formula consists of 1595 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 23:07:53,109 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:07:54,190 INFO L134 CoverageAnalysis]: Checked inductivity of 518 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 510 trivial. 0 not checked. [2021-11-12 23:07:54,191 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:07:54,880 INFO L134 CoverageAnalysis]: Checked inductivity of 518 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 510 trivial. 0 not checked. [2021-11-12 23:07:54,880 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:07:54,880 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1820632048] [2021-11-12 23:07:54,880 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1820632048] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-12 23:07:54,881 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-12 23:07:54,881 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2021-11-12 23:07:54,881 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1261486742] [2021-11-12 23:07:54,881 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:07:54,881 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-12 23:07:54,882 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:07:54,882 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-12 23:07:54,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-12 23:07:54,882 INFO L87 Difference]: Start difference. First operand 57923 states and 79499 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2021-11-12 23:07:57,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:07:57,545 INFO L93 Difference]: Finished difference Result 57929 states and 79504 transitions. [2021-11-12 23:07:57,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-12 23:07:57,546 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 207 [2021-11-12 23:07:57,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:07:57,841 INFO L225 Difference]: With dead ends: 57929 [2021-11-12 23:07:57,842 INFO L226 Difference]: Without dead ends: 57927 [2021-11-12 23:07:57,857 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 415 GetRequests, 407 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2021-11-12 23:07:57,858 INFO L933 BasicCegarLoop]: 2162 mSDtfsCounter, 2097 mSDsluCounter, 4305 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 39.58ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2104 SdHoareTripleChecker+Valid, 6467 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 9.89ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 43.77ms IncrementalHoareTripleChecker+Time [2021-11-12 23:07:57,858 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2104 Valid, 6467 Invalid, 20 Unknown, 0 Unchecked, 9.89ms Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 43.77ms Time] [2021-11-12 23:07:57,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57927 states.