./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-sis-sis900.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0f8a17c6 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1518d6c-c943-45c7-95d8-bfcd70d92a8b/bin/utaipan-UbGMyvGFUs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1518d6c-c943-45c7-95d8-bfcd70d92a8b/bin/utaipan-UbGMyvGFUs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1518d6c-c943-45c7-95d8-bfcd70d92a8b/bin/utaipan-UbGMyvGFUs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1518d6c-c943-45c7-95d8-bfcd70d92a8b/bin/utaipan-UbGMyvGFUs/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sis-sis900.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1518d6c-c943-45c7-95d8-bfcd70d92a8b/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1518d6c-c943-45c7-95d8-bfcd70d92a8b/bin/utaipan-UbGMyvGFUs --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 82e959473290e80a4f353bcd3c2747bafa4ce239975e14e29f8e5bf5eff4b01b --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 14:27:36,007 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 14:27:36,009 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 14:27:36,068 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 14:27:36,069 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 14:27:36,074 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 14:27:36,076 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 14:27:36,080 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 14:27:36,082 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 14:27:36,091 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 14:27:36,092 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 14:27:36,094 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 14:27:36,094 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 14:27:36,097 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 14:27:36,099 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 14:27:36,105 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 14:27:36,106 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 14:27:36,107 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 14:27:36,109 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 14:27:36,111 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 14:27:36,113 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 14:27:36,117 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 14:27:36,123 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 14:27:36,124 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 14:27:36,135 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 14:27:36,136 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 14:27:36,136 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 14:27:36,138 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 14:27:36,139 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 14:27:36,140 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 14:27:36,141 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 14:27:36,142 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 14:27:36,144 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 14:27:36,145 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 14:27:36,147 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 14:27:36,147 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 14:27:36,147 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 14:27:36,148 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 14:27:36,148 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 14:27:36,149 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 14:27:36,149 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 14:27:36,150 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1518d6c-c943-45c7-95d8-bfcd70d92a8b/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-19 14:27:36,193 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 14:27:36,193 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 14:27:36,194 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 14:27:36,194 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 14:27:36,197 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-19 14:27:36,197 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-19 14:27:36,198 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-19 14:27:36,198 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-19 14:27:36,198 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-19 14:27:36,198 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-19 14:27:36,199 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-19 14:27:36,199 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-19 14:27:36,200 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-19 14:27:36,200 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-19 14:27:36,200 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-19 14:27:36,200 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-19 14:27:36,201 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 14:27:36,201 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-19 14:27:36,201 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 14:27:36,201 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-19 14:27:36,202 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 14:27:36,202 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-19 14:27:36,202 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-19 14:27:36,203 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 14:27:36,203 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 14:27:36,203 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-19 14:27:36,203 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 14:27:36,203 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 14:27:36,204 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 14:27:36,205 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 14:27:36,205 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 14:27:36,205 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-19 14:27:36,206 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-19 14:27:36,206 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-19 14:27:36,206 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-19 14:27:36,206 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 14:27:36,207 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-19 14:27:36,207 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_b1518d6c-c943-45c7-95d8-bfcd70d92a8b/bin/utaipan-UbGMyvGFUs/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1518d6c-c943-45c7-95d8-bfcd70d92a8b/bin/utaipan-UbGMyvGFUs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 82e959473290e80a4f353bcd3c2747bafa4ce239975e14e29f8e5bf5eff4b01b [2021-11-19 14:27:36,458 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 14:27:36,498 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 14:27:36,501 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 14:27:36,503 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 14:27:36,503 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 14:27:36,505 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1518d6c-c943-45c7-95d8-bfcd70d92a8b/bin/utaipan-UbGMyvGFUs/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sis-sis900.cil.i [2021-11-19 14:27:36,572 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1518d6c-c943-45c7-95d8-bfcd70d92a8b/bin/utaipan-UbGMyvGFUs/data/59681228f/396315b061834ed2ab706015ef393802/FLAG810489b8d [2021-11-19 14:27:37,606 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 14:27:37,607 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1518d6c-c943-45c7-95d8-bfcd70d92a8b/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sis-sis900.cil.i [2021-11-19 14:27:37,675 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1518d6c-c943-45c7-95d8-bfcd70d92a8b/bin/utaipan-UbGMyvGFUs/data/59681228f/396315b061834ed2ab706015ef393802/FLAG810489b8d [2021-11-19 14:27:37,919 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1518d6c-c943-45c7-95d8-bfcd70d92a8b/bin/utaipan-UbGMyvGFUs/data/59681228f/396315b061834ed2ab706015ef393802 [2021-11-19 14:27:37,922 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 14:27:37,923 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 14:27:37,925 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 14:27:37,925 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 14:27:37,928 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 14:27:37,929 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:27:37" (1/1) ... [2021-11-19 14:27:37,930 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@10b5843e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:27:37, skipping insertion in model container [2021-11-19 14:27:37,931 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:27:37" (1/1) ... [2021-11-19 14:27:37,938 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 14:27:38,111 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 14:27:40,135 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:27:40,137 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:27:41,080 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1518d6c-c943-45c7-95d8-bfcd70d92a8b/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sis-sis900.cil.i[343367,343380] [2021-11-19 14:27:41,083 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1518d6c-c943-45c7-95d8-bfcd70d92a8b/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sis-sis900.cil.i[343536,343549] [2021-11-19 14:27:41,084 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1518d6c-c943-45c7-95d8-bfcd70d92a8b/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sis-sis900.cil.i[343703,343716] [2021-11-19 14:27:41,084 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1518d6c-c943-45c7-95d8-bfcd70d92a8b/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sis-sis900.cil.i[343871,343884] [2021-11-19 14:27:41,102 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 14:27:41,133 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-11-19 14:27:41,133 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@2fc8a424 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:27:41, skipping insertion in model container [2021-11-19 14:27:41,133 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 14:27:41,134 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-19 14:27:41,136 INFO L158 Benchmark]: Toolchain (without parser) took 3211.47ms. Allocated memory was 100.7MB in the beginning and 130.0MB in the end (delta: 29.4MB). Free memory was 56.4MB in the beginning and 71.5MB in the end (delta: -15.1MB). Peak memory consumption was 44.2MB. Max. memory is 16.1GB. [2021-11-19 14:27:41,137 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 100.7MB. Free memory is still 55.0MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 14:27:41,138 INFO L158 Benchmark]: CACSL2BoogieTranslator took 3208.77ms. Allocated memory was 100.7MB in the beginning and 130.0MB in the end (delta: 29.4MB). Free memory was 56.2MB in the beginning and 71.5MB in the end (delta: -15.3MB). Peak memory consumption was 44.2MB. Max. memory is 16.1GB. [2021-11-19 14:27:41,139 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 100.7MB. Free memory is still 55.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 3208.77ms. Allocated memory was 100.7MB in the beginning and 130.0MB in the end (delta: 29.4MB). Free memory was 56.2MB in the beginning and 71.5MB in the end (delta: -15.3MB). Peak memory consumption was 44.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 6103]: 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_b1518d6c-c943-45c7-95d8-bfcd70d92a8b/bin/utaipan-UbGMyvGFUs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1518d6c-c943-45c7-95d8-bfcd70d92a8b/bin/utaipan-UbGMyvGFUs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1518d6c-c943-45c7-95d8-bfcd70d92a8b/bin/utaipan-UbGMyvGFUs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1518d6c-c943-45c7-95d8-bfcd70d92a8b/bin/utaipan-UbGMyvGFUs/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sis-sis900.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1518d6c-c943-45c7-95d8-bfcd70d92a8b/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1518d6c-c943-45c7-95d8-bfcd70d92a8b/bin/utaipan-UbGMyvGFUs --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 82e959473290e80a4f353bcd3c2747bafa4ce239975e14e29f8e5bf5eff4b01b --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 14:27:43,344 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 14:27:43,347 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 14:27:43,386 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 14:27:43,387 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 14:27:43,392 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 14:27:43,394 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 14:27:43,403 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 14:27:43,406 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 14:27:43,414 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 14:27:43,415 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 14:27:43,416 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 14:27:43,417 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 14:27:43,418 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 14:27:43,419 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 14:27:43,421 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 14:27:43,422 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 14:27:43,423 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 14:27:43,425 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 14:27:43,440 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 14:27:43,443 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 14:27:43,445 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 14:27:43,452 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 14:27:43,454 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 14:27:43,458 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 14:27:43,458 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 14:27:43,459 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 14:27:43,461 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 14:27:43,462 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 14:27:43,463 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 14:27:43,464 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 14:27:43,465 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 14:27:43,467 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 14:27:43,467 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 14:27:43,469 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 14:27:43,481 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 14:27:43,482 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 14:27:43,482 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 14:27:43,483 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 14:27:43,484 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 14:27:43,484 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 14:27:43,486 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1518d6c-c943-45c7-95d8-bfcd70d92a8b/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-19 14:27:43,514 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 14:27:43,514 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 14:27:43,515 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 14:27:43,516 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 14:27:43,516 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-19 14:27:43,516 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-19 14:27:43,516 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-19 14:27:43,517 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-19 14:27:43,517 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-19 14:27:43,517 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-19 14:27:43,518 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 14:27:43,518 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 14:27:43,519 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-19 14:27:43,519 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 14:27:43,519 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-19 14:27:43,519 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-19 14:27:43,520 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-19 14:27:43,520 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-19 14:27:43,520 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 14:27:43,520 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 14:27:43,521 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-19 14:27:43,521 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 14:27:43,521 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-19 14:27:43,521 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 14:27:43,522 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 14:27:43,522 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 14:27:43,522 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 14:27:43,523 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-19 14:27:43,523 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-19 14:27:43,523 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-19 14:27:43,523 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-19 14:27:43,524 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 14:27:43,524 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-19 14:27:43,524 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_b1518d6c-c943-45c7-95d8-bfcd70d92a8b/bin/utaipan-UbGMyvGFUs/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1518d6c-c943-45c7-95d8-bfcd70d92a8b/bin/utaipan-UbGMyvGFUs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 82e959473290e80a4f353bcd3c2747bafa4ce239975e14e29f8e5bf5eff4b01b [2021-11-19 14:27:43,878 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 14:27:43,900 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 14:27:43,903 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 14:27:43,904 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 14:27:43,905 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 14:27:43,906 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1518d6c-c943-45c7-95d8-bfcd70d92a8b/bin/utaipan-UbGMyvGFUs/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sis-sis900.cil.i [2021-11-19 14:27:43,986 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1518d6c-c943-45c7-95d8-bfcd70d92a8b/bin/utaipan-UbGMyvGFUs/data/b0d802800/4b9fcfb739f74581b63e9d5e1b57b5b2/FLAG3469c9b12 [2021-11-19 14:27:45,076 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 14:27:45,077 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1518d6c-c943-45c7-95d8-bfcd70d92a8b/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sis-sis900.cil.i [2021-11-19 14:27:45,136 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1518d6c-c943-45c7-95d8-bfcd70d92a8b/bin/utaipan-UbGMyvGFUs/data/b0d802800/4b9fcfb739f74581b63e9d5e1b57b5b2/FLAG3469c9b12 [2021-11-19 14:27:45,456 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1518d6c-c943-45c7-95d8-bfcd70d92a8b/bin/utaipan-UbGMyvGFUs/data/b0d802800/4b9fcfb739f74581b63e9d5e1b57b5b2 [2021-11-19 14:27:45,458 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 14:27:45,460 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 14:27:45,476 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 14:27:45,476 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 14:27:45,478 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 14:27:45,479 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:27:45" (1/1) ... [2021-11-19 14:27:45,480 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e97449a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:27:45, skipping insertion in model container [2021-11-19 14:27:45,480 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:27:45" (1/1) ... [2021-11-19 14:27:45,487 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 14:27:45,697 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 14:27:48,841 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1518d6c-c943-45c7-95d8-bfcd70d92a8b/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sis-sis900.cil.i[343367,343380] [2021-11-19 14:27:48,844 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1518d6c-c943-45c7-95d8-bfcd70d92a8b/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sis-sis900.cil.i[343536,343549] [2021-11-19 14:27:48,845 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1518d6c-c943-45c7-95d8-bfcd70d92a8b/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sis-sis900.cil.i[343703,343716] [2021-11-19 14:27:48,845 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1518d6c-c943-45c7-95d8-bfcd70d92a8b/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sis-sis900.cil.i[343871,343884] [2021-11-19 14:27:48,872 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 14:27:48,958 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-19 14:27:49,035 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 14:27:49,445 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1518d6c-c943-45c7-95d8-bfcd70d92a8b/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sis-sis900.cil.i[343367,343380] [2021-11-19 14:27:49,445 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1518d6c-c943-45c7-95d8-bfcd70d92a8b/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sis-sis900.cil.i[343536,343549] [2021-11-19 14:27:49,446 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1518d6c-c943-45c7-95d8-bfcd70d92a8b/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sis-sis900.cil.i[343703,343716] [2021-11-19 14:27:49,446 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1518d6c-c943-45c7-95d8-bfcd70d92a8b/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sis-sis900.cil.i[343871,343884] [2021-11-19 14:27:49,455 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 14:27:49,488 INFO L203 MainTranslator]: Completed pre-run [2021-11-19 14:27:49,935 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1518d6c-c943-45c7-95d8-bfcd70d92a8b/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sis-sis900.cil.i[343367,343380] [2021-11-19 14:27:49,936 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1518d6c-c943-45c7-95d8-bfcd70d92a8b/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sis-sis900.cil.i[343536,343549] [2021-11-19 14:27:49,937 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1518d6c-c943-45c7-95d8-bfcd70d92a8b/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sis-sis900.cil.i[343703,343716] [2021-11-19 14:27:49,937 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1518d6c-c943-45c7-95d8-bfcd70d92a8b/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sis-sis900.cil.i[343871,343884] [2021-11-19 14:27:49,947 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 14:27:50,289 INFO L208 MainTranslator]: Completed translation [2021-11-19 14:27:50,290 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:27:50 WrapperNode [2021-11-19 14:27:50,290 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 14:27:50,292 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-19 14:27:50,292 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-19 14:27:50,292 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-19 14:27:50,300 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:27:50" (1/1) ... [2021-11-19 14:27:50,430 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:27:50" (1/1) ... [2021-11-19 14:27:50,653 INFO L137 Inliner]: procedures = 463, calls = 1948, calls flagged for inlining = 238, calls inlined = 222, statements flattened = 5021 [2021-11-19 14:27:50,653 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-19 14:27:50,654 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-19 14:27:50,654 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-19 14:27:50,655 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-19 14:27:50,663 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:27:50" (1/1) ... [2021-11-19 14:27:50,663 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:27:50" (1/1) ... [2021-11-19 14:27:50,684 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:27:50" (1/1) ... [2021-11-19 14:27:50,684 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:27:50" (1/1) ... [2021-11-19 14:27:50,826 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:27:50" (1/1) ... [2021-11-19 14:27:50,856 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:27:50" (1/1) ... [2021-11-19 14:27:50,879 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:27:50" (1/1) ... [2021-11-19 14:27:50,903 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-19 14:27:50,904 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-19 14:27:50,905 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-19 14:27:50,905 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-19 14:27:50,906 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:27:50" (1/1) ... [2021-11-19 14:27:50,912 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 14:27:50,922 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1518d6c-c943-45c7-95d8-bfcd70d92a8b/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 14:27:50,933 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1518d6c-c943-45c7-95d8-bfcd70d92a8b/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-19 14:27:50,955 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1518d6c-c943-45c7-95d8-bfcd70d92a8b/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-19 14:27:50,978 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_init_rxfilter [2021-11-19 14:27:50,979 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_init_rxfilter [2021-11-19 14:27:50,979 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_write [2021-11-19 14:27:50,979 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_write [2021-11-19 14:27:50,979 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2021-11-19 14:27:50,979 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2021-11-19 14:27:50,980 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-19 14:27:50,980 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-19 14:27:50,980 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2021-11-19 14:27:50,980 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2021-11-19 14:27:50,980 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-11-19 14:27:50,980 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-11-19 14:27:50,981 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-19 14:27:50,981 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-19 14:27:50,981 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-11-19 14:27:50,981 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-11-19 14:27:50,981 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2021-11-19 14:27:50,981 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2021-11-19 14:27:50,982 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-11-19 14:27:50,982 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-11-19 14:27:50,982 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_on [2021-11-19 14:27:50,982 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_on [2021-11-19 14:27:50,982 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_default_phy [2021-11-19 14:27:50,982 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_default_phy [2021-11-19 14:27:50,983 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite8 [2021-11-19 14:27:50,983 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite8 [2021-11-19 14:27:50,983 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irq_75 [2021-11-19 14:27:50,983 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irq_75 [2021-11-19 14:27:50,983 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_66 [2021-11-19 14:27:50,983 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_66 [2021-11-19 14:27:50,984 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32 [2021-11-19 14:27:50,984 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32 [2021-11-19 14:27:50,984 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2021-11-19 14:27:50,984 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2021-11-19 14:27:50,984 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_check_mode [2021-11-19 14:27:50,984 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_check_mode [2021-11-19 14:27:50,985 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2021-11-19 14:27:50,985 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2021-11-19 14:27:50,985 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-19 14:27:50,985 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-19 14:27:50,985 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2021-11-19 14:27:50,985 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2021-11-19 14:27:50,986 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2021-11-19 14:27:50,986 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2021-11-19 14:27:50,986 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2021-11-19 14:27:50,986 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2021-11-19 14:27:50,986 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-19 14:27:50,986 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-19 14:27:50,987 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_remove [2021-11-19 14:27:50,987 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_remove [2021-11-19 14:27:50,987 INFO L130 BoogieDeclarations]: Found specification of procedure sis630_set_eq [2021-11-19 14:27:50,987 INFO L138 BoogieDeclarations]: Found implementation of procedure sis630_set_eq [2021-11-19 14:27:50,987 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_device [2021-11-19 14:27:50,987 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_device [2021-11-19 14:27:50,988 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2021-11-19 14:27:50,988 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2021-11-19 14:27:50,988 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-19 14:27:50,988 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2021-11-19 14:27:50,988 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-19 14:27:50,988 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-19 14:27:50,989 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-19 14:27:50,989 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_sis900_cleanup_module_14_2 [2021-11-19 14:27:50,989 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_sis900_cleanup_module_14_2 [2021-11-19 14:27:50,989 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_init_tx_ring [2021-11-19 14:27:50,989 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_init_tx_ring [2021-11-19 14:27:50,989 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-11-19 14:27:50,990 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-11-19 14:27:50,990 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_lock_of_sis900_private [2021-11-19 14:27:50,990 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_lock_of_sis900_private [2021-11-19 14:27:50,990 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-11-19 14:27:50,990 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-11-19 14:27:50,990 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-19 14:27:50,991 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-19 14:27:50,991 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_set_mode [2021-11-19 14:27:50,991 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_set_mode [2021-11-19 14:27:50,991 INFO L130 BoogieDeclarations]: Found specification of procedure set_rx_mode [2021-11-19 14:27:50,991 INFO L138 BoogieDeclarations]: Found implementation of procedure set_rx_mode [2021-11-19 14:27:50,991 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_sis900_private [2021-11-19 14:27:50,992 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_sis900_private [2021-11-19 14:27:50,992 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-11-19 14:27:50,992 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-11-19 14:27:50,992 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2021-11-19 14:27:50,992 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2021-11-19 14:27:50,992 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-11-19 14:27:50,992 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-11-19 14:27:50,993 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-11-19 14:27:50,993 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-11-19 14:27:50,993 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2021-11-19 14:27:50,993 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2021-11-19 14:27:50,993 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_interrupt [2021-11-19 14:27:50,993 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_interrupt [2021-11-19 14:27:50,994 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_reset_phy [2021-11-19 14:27:50,994 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_reset_phy [2021-11-19 14:27:50,994 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2021-11-19 14:27:50,994 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2021-11-19 14:27:50,994 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-19 14:27:50,994 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2021-11-19 14:27:50,995 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2021-11-19 14:27:50,995 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2021-11-19 14:27:50,995 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2021-11-19 14:27:50,995 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-19 14:27:50,995 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-19 14:27:50,995 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-19 14:27:50,996 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-19 14:27:50,996 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_dword [2021-11-19 14:27:50,996 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_dword [2021-11-19 14:27:50,996 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_open [2021-11-19 14:27:50,996 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_open [2021-11-19 14:27:50,996 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-19 14:27:50,997 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-19 14:27:50,997 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_nway_reset [2021-11-19 14:27:50,997 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_nway_reset [2021-11-19 14:27:50,997 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2021-11-19 14:27:50,997 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2021-11-19 14:27:50,997 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-11-19 14:27:50,998 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-11-19 14:27:50,998 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2021-11-19 14:27:50,998 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2021-11-19 14:27:50,998 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_read [2021-11-19 14:27:50,998 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_read [2021-11-19 14:27:50,998 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-19 14:27:50,999 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-19 14:27:50,999 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-19 14:27:50,999 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_close [2021-11-19 14:27:50,999 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_close [2021-11-19 14:27:50,999 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-19 14:27:50,999 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-19 14:27:51,000 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2021-11-19 14:27:51,000 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-19 14:27:51,000 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-19 14:27:51,000 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-11-19 14:27:51,000 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-11-19 14:27:51,000 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2021-11-19 14:27:51,000 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2021-11-19 14:27:51,001 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2021-11-19 14:27:51,001 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2021-11-19 14:27:51,001 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_reset [2021-11-19 14:27:51,001 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_reset [2021-11-19 14:27:51,001 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2021-11-19 14:27:51,001 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2021-11-19 14:27:51,002 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-11-19 14:27:51,002 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-11-19 14:27:51,002 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2021-11-19 14:27:51,002 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2021-11-19 14:27:51,002 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2021-11-19 14:27:51,002 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2021-11-19 14:27:51,002 INFO L130 BoogieDeclarations]: Found specification of procedure read_eeprom [2021-11-19 14:27:51,003 INFO L138 BoogieDeclarations]: Found implementation of procedure read_eeprom [2021-11-19 14:27:51,003 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2021-11-19 14:27:51,003 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2021-11-19 14:27:51,003 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-19 14:27:51,003 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2021-11-19 14:27:51,003 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2021-11-19 14:27:51,004 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_irq_74 [2021-11-19 14:27:51,004 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_irq_74 [2021-11-19 14:27:51,004 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-19 14:27:51,004 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2021-11-19 14:27:51,004 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2021-11-19 14:27:51,004 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_init_rx_ring [2021-11-19 14:27:51,004 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_init_rx_ring [2021-11-19 14:27:51,005 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-19 14:27:51,005 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-19 14:27:51,005 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2021-11-19 14:27:51,005 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-19 14:27:51,005 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-19 14:27:51,005 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_byte [2021-11-19 14:27:51,005 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_byte [2021-11-19 14:27:51,006 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-11-19 14:27:51,006 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-11-19 14:27:51,006 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-19 14:27:51,006 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-19 14:27:51,006 INFO L130 BoogieDeclarations]: Found specification of procedure eth_hw_addr_random [2021-11-19 14:27:51,006 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_hw_addr_random [2021-11-19 14:27:51,007 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_irq [2021-11-19 14:27:51,007 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_irq [2021-11-19 14:27:51,007 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_dword [2021-11-19 14:27:51,007 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_dword [2021-11-19 14:27:51,007 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_poll [2021-11-19 14:27:51,007 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_poll [2021-11-19 14:27:51,007 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2021-11-19 14:27:51,008 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2021-11-19 14:27:51,008 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-11-19 14:27:51,008 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-11-19 14:27:51,008 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_mapping_error [2021-11-19 14:27:51,008 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_mapping_error [2021-11-19 14:27:51,008 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-11-19 14:27:51,009 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-11-19 14:27:51,009 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-19 14:27:51,009 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-19 14:27:51,009 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_resume [2021-11-19 14:27:51,009 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_resume [2021-11-19 14:27:51,009 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-19 14:27:51,009 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-19 14:27:51,010 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dev_put [2021-11-19 14:27:51,010 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dev_put [2021-11-19 14:27:51,010 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_idle [2021-11-19 14:27:51,010 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_idle [2021-11-19 14:27:51,010 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_tx_timeout [2021-11-19 14:27:51,010 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_tx_timeout [2021-11-19 14:27:51,010 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-19 14:27:51,011 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-19 14:27:51,011 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2021-11-19 14:27:51,011 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2021-11-19 14:27:51,011 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2021-11-19 14:27:51,011 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2021-11-19 14:27:51,011 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-11-19 14:27:51,011 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-11-19 14:27:51,988 INFO L236 CfgBuilder]: Building ICFG [2021-11-19 14:27:51,991 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-19 14:27:52,436 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-19 14:28:25,510 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-19 14:28:25,574 INFO L277 CfgBuilder]: Performing block encoding [2021-11-19 14:28:25,593 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-19 14:28:25,594 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-19 14:28:25,599 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:28:25 BoogieIcfgContainer [2021-11-19 14:28:25,600 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-19 14:28:25,601 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-19 14:28:25,602 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-19 14:28:25,604 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-19 14:28:25,605 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 02:27:45" (1/3) ... [2021-11-19 14:28:25,605 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51517543 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 02:28:25, skipping insertion in model container [2021-11-19 14:28:25,606 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:27:50" (2/3) ... [2021-11-19 14:28:25,606 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51517543 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 02:28:25, skipping insertion in model container [2021-11-19 14:28:25,606 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:28:25" (3/3) ... [2021-11-19 14:28:25,607 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sis-sis900.cil.i [2021-11-19 14:28:25,613 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-19 14:28:25,613 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-11-19 14:28:25,670 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-19 14:28:25,676 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-19 14:28:25,676 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-11-19 14:28:25,738 INFO L276 IsEmpty]: Start isEmpty. Operand has 1960 states, 1339 states have (on average 1.2763256161314414) internal successors, (1709), 1366 states have internal predecessors, (1709), 526 states have call successors, (526), 93 states have call predecessors, (526), 92 states have return successors, (520), 512 states have call predecessors, (520), 520 states have call successors, (520) [2021-11-19 14:28:25,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2021-11-19 14:28:25,755 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:28:25,756 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:28:25,756 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-19 14:28:25,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:28:25,762 INFO L85 PathProgramCache]: Analyzing trace with hash -511834341, now seen corresponding path program 1 times [2021-11-19 14:28:25,782 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:28:25,783 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [696921805] [2021-11-19 14:28:25,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:28:25,786 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:28:25,786 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1518d6c-c943-45c7-95d8-bfcd70d92a8b/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:28:25,789 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1518d6c-c943-45c7-95d8-bfcd70d92a8b/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:28:25,801 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1518d6c-c943-45c7-95d8-bfcd70d92a8b/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-19 14:28:27,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:28:27,161 INFO L263 TraceCheckSpWp]: Trace formula consists of 1151 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 14:28:27,172 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:28:27,579 INFO L134 CoverageAnalysis]: Checked inductivity of 528 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 495 trivial. 0 not checked. [2021-11-19 14:28:27,579 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:28:28,002 INFO L134 CoverageAnalysis]: Checked inductivity of 528 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 528 trivial. 0 not checked. [2021-11-19 14:28:28,003 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:28:28,003 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [696921805] [2021-11-19 14:28:28,003 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [696921805] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:28:28,004 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:28:28,004 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-19 14:28:28,006 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1054243202] [2021-11-19 14:28:28,009 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:28:28,016 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 14:28:28,017 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:28:28,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 14:28:28,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:28:28,068 INFO L87 Difference]: Start difference. First operand has 1960 states, 1339 states have (on average 1.2763256161314414) internal successors, (1709), 1366 states have internal predecessors, (1709), 526 states have call successors, (526), 93 states have call predecessors, (526), 92 states have return successors, (520), 512 states have call predecessors, (520), 520 states have call successors, (520) Second operand has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 4 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) [2021-11-19 14:28:30,200 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:28:36,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:28:36,741 INFO L93 Difference]: Finished difference Result 7601 states and 10869 transitions. [2021-11-19 14:28:36,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:28:36,744 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 4 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) Word has length 149 [2021-11-19 14:28:36,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:28:36,817 INFO L225 Difference]: With dead ends: 7601 [2021-11-19 14:28:36,818 INFO L226 Difference]: Without dead ends: 5651 [2021-11-19 14:28:36,846 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 296 GetRequests, 294 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:28:36,851 INFO L933 BasicCegarLoop]: 3739 mSDtfsCounter, 6909 mSDsluCounter, 4272 mSDsCounter, 0 mSdLazyCounter, 1070 mSolverCounterSat, 985 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6909 SdHoareTripleChecker+Valid, 8011 SdHoareTripleChecker+Invalid, 2056 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 985 IncrementalHoareTripleChecker+Valid, 1070 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.0s IncrementalHoareTripleChecker+Time [2021-11-19 14:28:36,853 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6909 Valid, 8011 Invalid, 2056 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [985 Valid, 1070 Invalid, 1 Unknown, 0 Unchecked, 8.0s Time] [2021-11-19 14:28:36,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5651 states. [2021-11-19 14:28:37,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5651 to 5625. [2021-11-19 14:28:37,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5625 states, 3879 states have (on average 1.2724929105439546) internal successors, (4936), 3956 states have internal predecessors, (4936), 1474 states have call successors, (1474), 270 states have call predecessors, (1474), 269 states have return successors, (1470), 1446 states have call predecessors, (1470), 1470 states have call successors, (1470) [2021-11-19 14:28:37,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5625 states to 5625 states and 7880 transitions. [2021-11-19 14:28:37,545 INFO L78 Accepts]: Start accepts. Automaton has 5625 states and 7880 transitions. Word has length 149 [2021-11-19 14:28:37,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:28:37,550 INFO L470 AbstractCegarLoop]: Abstraction has 5625 states and 7880 transitions. [2021-11-19 14:28:37,550 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 4 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) [2021-11-19 14:28:37,550 INFO L276 IsEmpty]: Start isEmpty. Operand 5625 states and 7880 transitions. [2021-11-19 14:28:37,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2021-11-19 14:28:37,560 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:28:37,561 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:28:37,600 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1518d6c-c943-45c7-95d8-bfcd70d92a8b/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-19 14:28:37,774 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1518d6c-c943-45c7-95d8-bfcd70d92a8b/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:28:37,775 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-19 14:28:37,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:28:37,776 INFO L85 PathProgramCache]: Analyzing trace with hash 474246430, now seen corresponding path program 1 times [2021-11-19 14:28:37,777 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:28:37,777 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1115721856] [2021-11-19 14:28:37,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:28:37,777 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:28:37,778 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1518d6c-c943-45c7-95d8-bfcd70d92a8b/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:28:37,784 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1518d6c-c943-45c7-95d8-bfcd70d92a8b/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:28:37,794 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1518d6c-c943-45c7-95d8-bfcd70d92a8b/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-19 14:28:38,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:28:39,049 INFO L263 TraceCheckSpWp]: Trace formula consists of 1200 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 14:28:39,056 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:28:39,387 INFO L134 CoverageAnalysis]: Checked inductivity of 528 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 495 trivial. 0 not checked. [2021-11-19 14:28:39,388 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:28:39,759 INFO L134 CoverageAnalysis]: Checked inductivity of 528 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 528 trivial. 0 not checked. [2021-11-19 14:28:39,759 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:28:39,759 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1115721856] [2021-11-19 14:28:39,759 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1115721856] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:28:39,760 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:28:39,760 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-19 14:28:39,760 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [882525223] [2021-11-19 14:28:39,760 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:28:39,763 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 14:28:39,764 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:28:39,764 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 14:28:39,764 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:28:39,765 INFO L87 Difference]: Start difference. First operand 5625 states and 7880 transitions. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 4 states have call successors, (21), 3 states have call predecessors, (21), 3 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) [2021-11-19 14:28:41,863 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:28:48,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:28:48,657 INFO L93 Difference]: Finished difference Result 22017 states and 30881 transitions. [2021-11-19 14:28:48,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:28:48,658 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 4 states have call successors, (21), 3 states have call predecessors, (21), 3 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) Word has length 153 [2021-11-19 14:28:48,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:28:48,824 INFO L225 Difference]: With dead ends: 22017 [2021-11-19 14:28:48,824 INFO L226 Difference]: Without dead ends: 16419 [2021-11-19 14:28:48,863 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 304 GetRequests, 302 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:28:48,865 INFO L933 BasicCegarLoop]: 3730 mSDtfsCounter, 6913 mSDsluCounter, 4229 mSDsCounter, 0 mSdLazyCounter, 1022 mSolverCounterSat, 1024 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6913 SdHoareTripleChecker+Valid, 7959 SdHoareTripleChecker+Invalid, 2047 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1024 IncrementalHoareTripleChecker+Valid, 1022 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.0s IncrementalHoareTripleChecker+Time [2021-11-19 14:28:48,865 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6913 Valid, 7959 Invalid, 2047 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1024 Valid, 1022 Invalid, 1 Unknown, 0 Unchecked, 8.0s Time] [2021-11-19 14:28:48,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16419 states. [2021-11-19 14:28:49,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16419 to 16357. [2021-11-19 14:28:49,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16357 states, 11299 states have (on average 1.2751570935481016) internal successors, (14408), 11538 states have internal predecessors, (14408), 4262 states have call successors, (4262), 806 states have call predecessors, (4262), 793 states have return successors, (4276), 4150 states have call predecessors, (4276), 4258 states have call successors, (4276) [2021-11-19 14:28:50,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16357 states to 16357 states and 22946 transitions. [2021-11-19 14:28:50,030 INFO L78 Accepts]: Start accepts. Automaton has 16357 states and 22946 transitions. Word has length 153 [2021-11-19 14:28:50,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:28:50,032 INFO L470 AbstractCegarLoop]: Abstraction has 16357 states and 22946 transitions. [2021-11-19 14:28:50,033 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 4 states have call successors, (21), 3 states have call predecessors, (21), 3 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) [2021-11-19 14:28:50,034 INFO L276 IsEmpty]: Start isEmpty. Operand 16357 states and 22946 transitions. [2021-11-19 14:28:50,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2021-11-19 14:28:50,041 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:28:50,041 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:28:50,079 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1518d6c-c943-45c7-95d8-bfcd70d92a8b/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-19 14:28:50,267 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1518d6c-c943-45c7-95d8-bfcd70d92a8b/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:28:50,268 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-19 14:28:50,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:28:50,268 INFO L85 PathProgramCache]: Analyzing trace with hash 501804944, now seen corresponding path program 1 times [2021-11-19 14:28:50,269 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:28:50,270 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1124061157] [2021-11-19 14:28:50,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:28:50,270 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:28:50,270 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1518d6c-c943-45c7-95d8-bfcd70d92a8b/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:28:50,271 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1518d6c-c943-45c7-95d8-bfcd70d92a8b/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:28:50,273 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1518d6c-c943-45c7-95d8-bfcd70d92a8b/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-19 14:28:51,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:28:51,404 INFO L263 TraceCheckSpWp]: Trace formula consists of 1189 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 14:28:51,409 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:28:51,754 INFO L134 CoverageAnalysis]: Checked inductivity of 528 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 495 trivial. 0 not checked. [2021-11-19 14:28:51,755 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:28:52,132 INFO L134 CoverageAnalysis]: Checked inductivity of 528 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 528 trivial. 0 not checked. [2021-11-19 14:28:52,133 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:28:52,133 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1124061157] [2021-11-19 14:28:52,133 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1124061157] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:28:52,133 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:28:52,133 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-19 14:28:52,133 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1482574625] [2021-11-19 14:28:52,134 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:28:52,134 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-19 14:28:52,134 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:28:52,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-19 14:28:52,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 14:28:52,135 INFO L87 Difference]: Start difference. First operand 16357 states and 22946 transitions. Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 3 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2021-11-19 14:28:54,236 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:28:55,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:28:55,610 INFO L93 Difference]: Finished difference Result 46362 states and 65063 transitions. [2021-11-19 14:28:55,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 14:28:55,611 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 3 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 156 [2021-11-19 14:28:55,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:28:55,841 INFO L225 Difference]: With dead ends: 46362 [2021-11-19 14:28:55,841 INFO L226 Difference]: Without dead ends: 30032 [2021-11-19 14:28:55,939 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 310 GetRequests, 309 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 14:28:55,944 INFO L933 BasicCegarLoop]: 3177 mSDtfsCounter, 2268 mSDsluCounter, 2627 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2268 SdHoareTripleChecker+Valid, 5804 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2021-11-19 14:28:55,946 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2268 Valid, 5804 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 69 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2021-11-19 14:28:55,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30032 states. [2021-11-19 14:28:57,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30032 to 29995. [2021-11-19 14:28:57,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29995 states, 20527 states have (on average 1.2742241925269158) internal successors, (26156), 20985 states have internal predecessors, (26156), 7937 states have call successors, (7937), 1556 states have call predecessors, (7937), 1528 states have return successors, (7972), 7717 states have call predecessors, (7972), 7933 states have call successors, (7972) [2021-11-19 14:28:57,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29995 states to 29995 states and 42065 transitions. [2021-11-19 14:28:57,954 INFO L78 Accepts]: Start accepts. Automaton has 29995 states and 42065 transitions. Word has length 156 [2021-11-19 14:28:57,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:28:57,956 INFO L470 AbstractCegarLoop]: Abstraction has 29995 states and 42065 transitions. [2021-11-19 14:28:57,956 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 3 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2021-11-19 14:28:57,956 INFO L276 IsEmpty]: Start isEmpty. Operand 29995 states and 42065 transitions. [2021-11-19 14:28:57,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2021-11-19 14:28:57,960 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:28:57,960 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 11, 11, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:28:57,992 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1518d6c-c943-45c7-95d8-bfcd70d92a8b/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-19 14:28:58,178 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1518d6c-c943-45c7-95d8-bfcd70d92a8b/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:28:58,179 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-19 14:28:58,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:28:58,180 INFO L85 PathProgramCache]: Analyzing trace with hash -585811610, now seen corresponding path program 1 times [2021-11-19 14:28:58,181 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:28:58,182 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [530735484] [2021-11-19 14:28:58,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:28:58,183 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:28:58,183 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1518d6c-c943-45c7-95d8-bfcd70d92a8b/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:28:58,183 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1518d6c-c943-45c7-95d8-bfcd70d92a8b/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:28:58,184 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1518d6c-c943-45c7-95d8-bfcd70d92a8b/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-19 14:28:59,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:28:59,287 INFO L263 TraceCheckSpWp]: Trace formula consists of 1272 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 14:28:59,292 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:28:59,706 INFO L134 CoverageAnalysis]: Checked inductivity of 531 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 498 trivial. 0 not checked. [2021-11-19 14:28:59,706 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:29:00,061 INFO L134 CoverageAnalysis]: Checked inductivity of 531 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 531 trivial. 0 not checked. [2021-11-19 14:29:00,061 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:29:00,061 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [530735484] [2021-11-19 14:29:00,061 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [530735484] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:29:00,061 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:29:00,062 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-19 14:29:00,062 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [827490774] [2021-11-19 14:29:00,062 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:29:00,062 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 14:29:00,062 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:29:00,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 14:29:00,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:29:00,063 INFO L87 Difference]: Start difference. First operand 29995 states and 42065 transitions. Second operand has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 4 states have call successors, (23), 3 states have call predecessors, (23), 3 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) [2021-11-19 14:29:02,149 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:29:08,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:29:08,303 INFO L93 Difference]: Finished difference Result 70383 states and 98271 transitions. [2021-11-19 14:29:08,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:29:08,304 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 4 states have call successors, (23), 3 states have call predecessors, (23), 3 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) Word has length 165 [2021-11-19 14:29:08,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:29:08,539 INFO L225 Difference]: With dead ends: 70383 [2021-11-19 14:29:08,539 INFO L226 Difference]: Without dead ends: 40415 [2021-11-19 14:29:08,858 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 328 GetRequests, 326 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:29:08,860 INFO L933 BasicCegarLoop]: 4296 mSDtfsCounter, 4705 mSDsluCounter, 3312 mSDsCounter, 0 mSdLazyCounter, 1105 mSolverCounterSat, 461 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4705 SdHoareTripleChecker+Valid, 7608 SdHoareTripleChecker+Invalid, 1567 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 461 IncrementalHoareTripleChecker+Valid, 1105 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2021-11-19 14:29:08,862 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4705 Valid, 7608 Invalid, 1567 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [461 Valid, 1105 Invalid, 1 Unknown, 0 Unchecked, 6.5s Time] [2021-11-19 14:29:08,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40415 states. [2021-11-19 14:29:11,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40415 to 40345. [2021-11-19 14:29:11,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40345 states, 28044 states have (on average 1.2770646127513907) internal successors, (35814), 28566 states have internal predecessors, (35814), 10051 states have call successors, (10051), 2296 states have call predecessors, (10051), 2247 states have return successors, (10073), 9796 states have call predecessors, (10073), 10047 states have call successors, (10073) [2021-11-19 14:29:12,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40345 states to 40345 states and 55938 transitions. [2021-11-19 14:29:12,192 INFO L78 Accepts]: Start accepts. Automaton has 40345 states and 55938 transitions. Word has length 165 [2021-11-19 14:29:12,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:29:12,193 INFO L470 AbstractCegarLoop]: Abstraction has 40345 states and 55938 transitions. [2021-11-19 14:29:12,193 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 4 states have call successors, (23), 3 states have call predecessors, (23), 3 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) [2021-11-19 14:29:12,193 INFO L276 IsEmpty]: Start isEmpty. Operand 40345 states and 55938 transitions. [2021-11-19 14:29:12,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2021-11-19 14:29:12,197 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:29:12,197 INFO L514 BasicCegarLoop]: trace histogram [15, 15, 11, 11, 11, 11, 11, 11, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:29:12,237 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1518d6c-c943-45c7-95d8-bfcd70d92a8b/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-19 14:29:12,413 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1518d6c-c943-45c7-95d8-bfcd70d92a8b/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:29:12,413 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-19 14:29:12,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:29:12,414 INFO L85 PathProgramCache]: Analyzing trace with hash -1098294467, now seen corresponding path program 1 times [2021-11-19 14:29:12,415 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:29:12,415 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1248134646] [2021-11-19 14:29:12,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:29:12,415 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:29:12,415 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1518d6c-c943-45c7-95d8-bfcd70d92a8b/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:29:12,416 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1518d6c-c943-45c7-95d8-bfcd70d92a8b/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:29:12,417 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1518d6c-c943-45c7-95d8-bfcd70d92a8b/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-19 14:29:13,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:29:13,493 INFO L263 TraceCheckSpWp]: Trace formula consists of 1276 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 14:29:13,497 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:29:14,448 INFO L134 CoverageAnalysis]: Checked inductivity of 679 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 679 trivial. 0 not checked. [2021-11-19 14:29:14,449 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:29:15,096 INFO L134 CoverageAnalysis]: Checked inductivity of 679 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 679 trivial. 0 not checked. [2021-11-19 14:29:15,096 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:29:15,096 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1248134646] [2021-11-19 14:29:15,097 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1248134646] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:29:15,097 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:29:15,097 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 5] imperfect sequences [] total 7 [2021-11-19 14:29:15,097 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [193326768] [2021-11-19 14:29:15,097 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:29:15,098 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-19 14:29:15,098 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:29:15,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-19 14:29:15,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-19 14:29:15,099 INFO L87 Difference]: Start difference. First operand 40345 states and 55938 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, (43), 4 states have call predecessors, (43), 2 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) [2021-11-19 14:29:16,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:29:16,963 INFO L93 Difference]: Finished difference Result 40351 states and 55943 transitions. [2021-11-19 14:29:16,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 14:29:16,963 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, (43), 4 states have call predecessors, (43), 2 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) Word has length 205 [2021-11-19 14:29:16,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:29:17,157 INFO L225 Difference]: With dead ends: 40351 [2021-11-19 14:29:17,157 INFO L226 Difference]: Without dead ends: 40349 [2021-11-19 14:29:17,174 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 411 GetRequests, 403 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2021-11-19 14:29:17,175 INFO L933 BasicCegarLoop]: 2722 mSDtfsCounter, 2629 mSDsluCounter, 10863 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2640 SdHoareTripleChecker+Valid, 13585 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 14:29:17,176 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2640 Valid, 13585 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-19 14:29:17,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40349 states. [2021-11-19 14:29:19,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40349 to 40349. [2021-11-19 14:29:19,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40349 states, 28047 states have (on average 1.277034977002888) internal successors, (35817), 28569 states have internal predecessors, (35817), 10051 states have call successors, (10051), 2297 states have call predecessors, (10051), 2248 states have return successors, (10073), 9796 states have call predecessors, (10073), 10047 states have call successors, (10073) [2021-11-19 14:29:19,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40349 states to 40349 states and 55941 transitions. [2021-11-19 14:29:19,686 INFO L78 Accepts]: Start accepts. Automaton has 40349 states and 55941 transitions. Word has length 205 [2021-11-19 14:29:19,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:29:19,687 INFO L470 AbstractCegarLoop]: Abstraction has 40349 states and 55941 transitions. [2021-11-19 14:29:19,687 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, (43), 4 states have call predecessors, (43), 2 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) [2021-11-19 14:29:19,687 INFO L276 IsEmpty]: Start isEmpty. Operand 40349 states and 55941 transitions. [2021-11-19 14:29:19,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2021-11-19 14:29:19,695 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:29:19,696 INFO L514 BasicCegarLoop]: trace histogram [15, 15, 11, 11, 11, 11, 11, 11, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:29:19,732 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1518d6c-c943-45c7-95d8-bfcd70d92a8b/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-19 14:29:19,910 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1518d6c-c943-45c7-95d8-bfcd70d92a8b/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:29:19,911 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-19 14:29:19,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:29:19,911 INFO L85 PathProgramCache]: Analyzing trace with hash 2033981501, now seen corresponding path program 1 times [2021-11-19 14:29:19,913 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:29:19,913 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1301440853] [2021-11-19 14:29:19,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:29:19,913 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:29:19,914 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1518d6c-c943-45c7-95d8-bfcd70d92a8b/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:29:19,916 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1518d6c-c943-45c7-95d8-bfcd70d92a8b/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:29:19,955 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1518d6c-c943-45c7-95d8-bfcd70d92a8b/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-19 14:29:21,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:29:21,158 INFO L263 TraceCheckSpWp]: Trace formula consists of 1283 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 14:29:21,164 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:29:22,226 INFO L134 CoverageAnalysis]: Checked inductivity of 681 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 679 trivial. 0 not checked. [2021-11-19 14:29:22,226 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:29:22,843 INFO L134 CoverageAnalysis]: Checked inductivity of 681 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 679 trivial. 0 not checked. [2021-11-19 14:29:22,843 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:29:22,843 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1301440853] [2021-11-19 14:29:22,843 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1301440853] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 14:29:22,844 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-19 14:29:22,844 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2021-11-19 14:29:22,844 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2079524706] [2021-11-19 14:29:22,844 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 14:29:22,845 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 14:29:22,845 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:29:22,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 14:29:22,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-19 14:29:22,846 INFO L87 Difference]: Start difference. First operand 40349 states and 55941 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) [2021-11-19 14:29:24,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:29:24,338 INFO L93 Difference]: Finished difference Result 40355 states and 55946 transitions. [2021-11-19 14:29:24,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 14:29:24,338 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 210 [2021-11-19 14:29:24,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:29:24,542 INFO L225 Difference]: With dead ends: 40355 [2021-11-19 14:29:24,542 INFO L226 Difference]: Without dead ends: 40353 [2021-11-19 14:29:24,567 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 421 GetRequests, 413 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2021-11-19 14:29:24,568 INFO L933 BasicCegarLoop]: 2725 mSDtfsCounter, 2658 mSDsluCounter, 5431 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2668 SdHoareTripleChecker+Valid, 8156 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 14:29:24,569 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2668 Valid, 8156 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 14:29:24,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40353 states. [2021-11-19 14:29:26,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40353 to 40353. [2021-11-19 14:29:27,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40353 states, 28050 states have (on average 1.277005347593583) internal successors, (35820), 28572 states have internal predecessors, (35820), 10051 states have call successors, (10051), 2298 states have call predecessors, (10051), 2249 states have return successors, (10073), 9796 states have call predecessors, (10073), 10047 states have call successors, (10073) [2021-11-19 14:29:27,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40353 states to 40353 states and 55944 transitions. [2021-11-19 14:29:27,219 INFO L78 Accepts]: Start accepts. Automaton has 40353 states and 55944 transitions. Word has length 210 [2021-11-19 14:29:27,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:29:27,224 INFO L470 AbstractCegarLoop]: Abstraction has 40353 states and 55944 transitions. [2021-11-19 14:29:27,224 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) [2021-11-19 14:29:27,225 INFO L276 IsEmpty]: Start isEmpty. Operand 40353 states and 55944 transitions. [2021-11-19 14:29:27,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2021-11-19 14:29:27,234 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:29:27,234 INFO L514 BasicCegarLoop]: trace histogram [15, 15, 11, 11, 11, 11, 11, 11, 4, 4, 4, 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, 1, 1, 1, 1] [2021-11-19 14:29:27,270 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1518d6c-c943-45c7-95d8-bfcd70d92a8b/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-19 14:29:27,458 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1518d6c-c943-45c7-95d8-bfcd70d92a8b/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:29:27,459 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-19 14:29:27,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:29:27,459 INFO L85 PathProgramCache]: Analyzing trace with hash 567579389, now seen corresponding path program 1 times [2021-11-19 14:29:27,460 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:29:27,461 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [723700655] [2021-11-19 14:29:27,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:29:27,461 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:29:27,461 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1518d6c-c943-45c7-95d8-bfcd70d92a8b/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:29:27,462 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1518d6c-c943-45c7-95d8-bfcd70d92a8b/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:29:27,486 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1518d6c-c943-45c7-95d8-bfcd70d92a8b/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-19 14:29:28,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:29:28,576 INFO L263 TraceCheckSpWp]: Trace formula consists of 1290 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 14:29:28,581 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:29:29,478 INFO L134 CoverageAnalysis]: Checked inductivity of 687 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 683 trivial. 0 not checked. [2021-11-19 14:29:29,478 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:29:30,037 INFO L134 CoverageAnalysis]: Checked inductivity of 687 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 683 trivial. 0 not checked. [2021-11-19 14:29:30,037 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:29:30,037 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [723700655] [2021-11-19 14:29:30,038 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [723700655] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 14:29:30,038 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-19 14:29:30,038 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2021-11-19 14:29:30,038 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1543435312] [2021-11-19 14:29:30,038 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 14:29:30,040 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 14:29:30,040 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:29:30,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 14:29:30,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-19 14:29:30,041 INFO L87 Difference]: Start difference. First operand 40353 states and 55944 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) [2021-11-19 14:29:31,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:29:31,780 INFO L93 Difference]: Finished difference Result 40359 states and 55949 transitions. [2021-11-19 14:29:31,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 14:29:31,781 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 215 [2021-11-19 14:29:31,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:29:32,042 INFO L225 Difference]: With dead ends: 40359 [2021-11-19 14:29:32,042 INFO L226 Difference]: Without dead ends: 40357 [2021-11-19 14:29:32,060 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 431 GetRequests, 423 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2021-11-19 14:29:32,061 INFO L933 BasicCegarLoop]: 2725 mSDtfsCounter, 2658 mSDsluCounter, 5431 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2667 SdHoareTripleChecker+Valid, 8156 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 14:29:32,061 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2667 Valid, 8156 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 14:29:32,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40357 states. [2021-11-19 14:29:34,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40357 to 40357. [2021-11-19 14:29:34,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40357 states, 28053 states have (on average 1.2769757245214415) internal successors, (35823), 28575 states have internal predecessors, (35823), 10051 states have call successors, (10051), 2299 states have call predecessors, (10051), 2250 states have return successors, (10073), 9796 states have call predecessors, (10073), 10047 states have call successors, (10073) [2021-11-19 14:29:34,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40357 states to 40357 states and 55947 transitions. [2021-11-19 14:29:34,205 INFO L78 Accepts]: Start accepts. Automaton has 40357 states and 55947 transitions. Word has length 215 [2021-11-19 14:29:34,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:29:34,206 INFO L470 AbstractCegarLoop]: Abstraction has 40357 states and 55947 transitions. [2021-11-19 14:29:34,206 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, (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) [2021-11-19 14:29:34,206 INFO L276 IsEmpty]: Start isEmpty. Operand 40357 states and 55947 transitions. [2021-11-19 14:29:34,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2021-11-19 14:29:34,211 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:29:34,212 INFO L514 BasicCegarLoop]: trace histogram [15, 15, 11, 11, 11, 11, 11, 11, 5, 5, 5, 4, 3, 3, 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, 1, 1] [2021-11-19 14:29:34,244 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1518d6c-c943-45c7-95d8-bfcd70d92a8b/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-19 14:29:34,434 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1518d6c-c943-45c7-95d8-bfcd70d92a8b/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:29:34,435 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-19 14:29:34,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:29:34,435 INFO L85 PathProgramCache]: Analyzing trace with hash -1378185684, now seen corresponding path program 1 times [2021-11-19 14:29:34,436 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:29:34,436 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [72722274] [2021-11-19 14:29:34,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:29:34,437 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:29:34,437 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1518d6c-c943-45c7-95d8-bfcd70d92a8b/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:29:34,437 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1518d6c-c943-45c7-95d8-bfcd70d92a8b/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:29:34,438 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1518d6c-c943-45c7-95d8-bfcd70d92a8b/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-19 14:29:35,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:29:35,468 INFO L263 TraceCheckSpWp]: Trace formula consists of 1344 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 14:29:35,472 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:29:35,897 INFO L134 CoverageAnalysis]: Checked inductivity of 708 backedges. 71 proven. 0 refuted. 0 times theorem prover too weak. 637 trivial. 0 not checked. [2021-11-19 14:29:35,897 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:29:36,292 INFO L134 CoverageAnalysis]: Checked inductivity of 708 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 697 trivial. 0 not checked. [2021-11-19 14:29:36,292 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:29:36,292 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [72722274] [2021-11-19 14:29:36,292 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [72722274] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:29:36,292 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:29:36,293 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-19 14:29:36,293 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1438482454] [2021-11-19 14:29:36,293 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:29:36,293 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 14:29:36,293 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:29:36,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 14:29:36,294 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:29:36,294 INFO L87 Difference]: Start difference. First operand 40357 states and 55947 transitions. Second operand has 4 states, 4 states have (on average 23.25) internal successors, (93), 4 states have internal predecessors, (93), 4 states have call successors, (35), 3 states have call predecessors, (35), 3 states have return successors, (33), 4 states have call predecessors, (33), 4 states have call successors, (33) [2021-11-19 14:29:38,378 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:29:44,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:29:44,647 INFO L93 Difference]: Finished difference Result 99844 states and 138366 transitions. [2021-11-19 14:29:44,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:29:44,649 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.25) internal successors, (93), 4 states have internal predecessors, (93), 4 states have call successors, (35), 3 states have call predecessors, (35), 3 states have return successors, (33), 4 states have call predecessors, (33), 4 states have call successors, (33) Word has length 231 [2021-11-19 14:29:44,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:29:44,907 INFO L225 Difference]: With dead ends: 99844 [2021-11-19 14:29:44,907 INFO L226 Difference]: Without dead ends: 59881 [2021-11-19 14:29:45,056 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 460 GetRequests, 458 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:29:45,062 INFO L933 BasicCegarLoop]: 4227 mSDtfsCounter, 5302 mSDsluCounter, 4776 mSDsCounter, 0 mSdLazyCounter, 1067 mSolverCounterSat, 12 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5302 SdHoareTripleChecker+Valid, 9003 SdHoareTripleChecker+Invalid, 1080 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 1067 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2021-11-19 14:29:45,063 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5302 Valid, 9003 Invalid, 1080 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 1067 Invalid, 1 Unknown, 0 Unchecked, 5.4s Time] [2021-11-19 14:29:45,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59881 states. [2021-11-19 14:29:47,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59881 to 59813. [2021-11-19 14:29:48,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59813 states, 41597 states have (on average 1.2734812606678365) internal successors, (52973), 42345 states have internal predecessors, (52973), 14875 states have call successors, (14875), 3417 states have call predecessors, (14875), 3338 states have return successors, (14910), 14520 states have call predecessors, (14910), 14871 states have call successors, (14910) [2021-11-19 14:29:48,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59813 states to 59813 states and 82758 transitions. [2021-11-19 14:29:48,290 INFO L78 Accepts]: Start accepts. Automaton has 59813 states and 82758 transitions. Word has length 231 [2021-11-19 14:29:48,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:29:48,291 INFO L470 AbstractCegarLoop]: Abstraction has 59813 states and 82758 transitions. [2021-11-19 14:29:48,291 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.25) internal successors, (93), 4 states have internal predecessors, (93), 4 states have call successors, (35), 3 states have call predecessors, (35), 3 states have return successors, (33), 4 states have call predecessors, (33), 4 states have call successors, (33) [2021-11-19 14:29:48,291 INFO L276 IsEmpty]: Start isEmpty. Operand 59813 states and 82758 transitions. [2021-11-19 14:29:48,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2021-11-19 14:29:48,297 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:29:48,297 INFO L514 BasicCegarLoop]: trace histogram [15, 15, 11, 11, 11, 11, 11, 11, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:29:48,331 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1518d6c-c943-45c7-95d8-bfcd70d92a8b/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (9)] Ended with exit code 0 [2021-11-19 14:29:48,518 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1518d6c-c943-45c7-95d8-bfcd70d92a8b/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:29:48,519 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-19 14:29:48,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:29:48,519 INFO L85 PathProgramCache]: Analyzing trace with hash -1892161539, now seen corresponding path program 1 times [2021-11-19 14:29:48,520 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:29:48,520 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1592426433] [2021-11-19 14:29:48,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:29:48,521 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:29:48,521 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1518d6c-c943-45c7-95d8-bfcd70d92a8b/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:29:48,521 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1518d6c-c943-45c7-95d8-bfcd70d92a8b/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:29:48,523 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1518d6c-c943-45c7-95d8-bfcd70d92a8b/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-19 14:29:49,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:29:49,543 INFO L263 TraceCheckSpWp]: Trace formula consists of 1297 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 14:29:49,546 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:29:50,410 INFO L134 CoverageAnalysis]: Checked inductivity of 697 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 691 trivial. 0 not checked. [2021-11-19 14:29:50,410 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:29:50,977 INFO L134 CoverageAnalysis]: Checked inductivity of 697 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 691 trivial. 0 not checked. [2021-11-19 14:29:50,978 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:29:50,978 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1592426433] [2021-11-19 14:29:50,978 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1592426433] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 14:29:50,978 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-19 14:29:50,979 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2021-11-19 14:29:50,979 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2008099565] [2021-11-19 14:29:50,979 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 14:29:50,980 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 14:29:50,980 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:29:50,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 14:29:50,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-19 14:29:50,981 INFO L87 Difference]: Start difference. First operand 59813 states and 82758 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, (25), 3 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2021-11-19 14:29:53,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:29:53,447 INFO L93 Difference]: Finished difference Result 59819 states and 82763 transitions. [2021-11-19 14:29:53,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 14:29:53,447 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, (25), 3 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 220 [2021-11-19 14:29:53,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:29:53,653 INFO L225 Difference]: With dead ends: 59819 [2021-11-19 14:29:53,653 INFO L226 Difference]: Without dead ends: 59817 [2021-11-19 14:29:53,674 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 441 GetRequests, 433 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2021-11-19 14:29:53,675 INFO L933 BasicCegarLoop]: 2725 mSDtfsCounter, 2658 mSDsluCounter, 5431 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2666 SdHoareTripleChecker+Valid, 8156 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 14:29:53,675 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2666 Valid, 8156 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 14:29:53,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59817 states. [2021-11-19 14:29:57,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59817 to 59817. [2021-11-19 14:29:57,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59817 states, 41600 states have (on average 1.2734615384615384) internal successors, (52976), 42348 states have internal predecessors, (52976), 14875 states have call successors, (14875), 3418 states have call predecessors, (14875), 3339 states have return successors, (14910), 14520 states have call predecessors, (14910), 14871 states have call successors, (14910) [2021-11-19 14:29:57,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59817 states to 59817 states and 82761 transitions. [2021-11-19 14:29:57,400 INFO L78 Accepts]: Start accepts. Automaton has 59817 states and 82761 transitions. Word has length 220 [2021-11-19 14:29:57,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:29:57,401 INFO L470 AbstractCegarLoop]: Abstraction has 59817 states and 82761 transitions. [2021-11-19 14:29:57,401 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, (25), 3 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2021-11-19 14:29:57,401 INFO L276 IsEmpty]: Start isEmpty. Operand 59817 states and 82761 transitions. [2021-11-19 14:29:57,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2021-11-19 14:29:57,407 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:29:57,407 INFO L514 BasicCegarLoop]: trace histogram [15, 15, 11, 11, 11, 11, 11, 11, 5, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:29:57,440 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1518d6c-c943-45c7-95d8-bfcd70d92a8b/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-11-19 14:29:57,630 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1518d6c-c943-45c7-95d8-bfcd70d92a8b/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:29:57,631 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)] === [2021-11-19 14:29:57,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:29:57,631 INFO L85 PathProgramCache]: Analyzing trace with hash 331270845, now seen corresponding path program 1 times [2021-11-19 14:29:57,632 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:29:57,633 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1196833815] [2021-11-19 14:29:57,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:29:57,633 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:29:57,633 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1518d6c-c943-45c7-95d8-bfcd70d92a8b/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:29:57,634 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1518d6c-c943-45c7-95d8-bfcd70d92a8b/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:29:57,635 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1518d6c-c943-45c7-95d8-bfcd70d92a8b/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-11-19 14:29:58,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:29:58,672 INFO L263 TraceCheckSpWp]: Trace formula consists of 1304 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 14:29:58,677 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:29:59,559 INFO L134 CoverageAnalysis]: Checked inductivity of 711 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 703 trivial. 0 not checked. [2021-11-19 14:29:59,559 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:30:00,538 INFO L134 CoverageAnalysis]: Checked inductivity of 711 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 703 trivial. 0 not checked. [2021-11-19 14:30:00,538 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:30:00,539 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1196833815] [2021-11-19 14:30:00,539 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1196833815] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 14:30:00,539 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-19 14:30:00,539 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2021-11-19 14:30:00,539 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [183774621] [2021-11-19 14:30:00,539 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 14:30:00,540 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 14:30:00,540 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:30:00,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 14:30:00,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-19 14:30:00,541 INFO L87 Difference]: Start difference. First operand 59817 states and 82761 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, (26), 3 states have call predecessors, (26), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2021-11-19 14:30:02,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:30:02,977 INFO L93 Difference]: Finished difference Result 59823 states and 82766 transitions. [2021-11-19 14:30:02,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 14:30:02,978 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, (26), 3 states have call predecessors, (26), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 225 [2021-11-19 14:30:02,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted.