./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-irda-vlsi_ir.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbcde1a6-03e2-4613-9780-51daa8fe0087/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbcde1a6-03e2-4613-9780-51daa8fe0087/bin/utaipan-I9t0OCRTmS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbcde1a6-03e2-4613-9780-51daa8fe0087/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbcde1a6-03e2-4613-9780-51daa8fe0087/bin/utaipan-I9t0OCRTmS/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-irda-vlsi_ir.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbcde1a6-03e2-4613-9780-51daa8fe0087/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbcde1a6-03e2-4613-9780-51daa8fe0087/bin/utaipan-I9t0OCRTmS --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 75b1aed7e7cb1bec6496160634d456a50c33979e7f90c34d568c6a02281e03b1 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-8393723 [2022-11-19 06:32:42,903 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 06:32:42,906 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 06:32:42,938 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 06:32:42,939 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 06:32:42,943 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 06:32:42,947 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 06:32:42,951 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 06:32:42,957 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 06:32:42,959 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 06:32:42,960 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 06:32:42,961 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 06:32:42,962 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 06:32:42,963 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 06:32:42,964 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 06:32:42,965 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 06:32:42,966 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 06:32:42,970 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 06:32:42,972 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 06:32:42,981 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 06:32:42,985 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 06:32:42,991 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 06:32:42,992 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 06:32:42,993 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 06:32:42,997 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 06:32:42,997 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 06:32:42,997 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 06:32:42,998 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 06:32:43,006 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 06:32:43,007 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 06:32:43,008 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 06:32:43,010 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 06:32:43,012 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 06:32:43,015 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 06:32:43,016 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 06:32:43,016 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 06:32:43,017 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 06:32:43,017 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 06:32:43,017 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 06:32:43,018 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 06:32:43,019 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 06:32:43,024 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbcde1a6-03e2-4613-9780-51daa8fe0087/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-19 06:32:43,077 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 06:32:43,078 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 06:32:43,078 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 06:32:43,078 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 06:32:43,079 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 06:32:43,079 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 06:32:43,080 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 06:32:43,080 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 06:32:43,080 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 06:32:43,080 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-19 06:32:43,080 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 06:32:43,081 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 06:32:43,081 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-19 06:32:43,081 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-19 06:32:43,081 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 06:32:43,082 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-19 06:32:43,082 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-19 06:32:43,082 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-19 06:32:43,087 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 06:32:43,087 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-19 06:32:43,087 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 06:32:43,088 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-19 06:32:43,088 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 06:32:43,089 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-19 06:32:43,089 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-19 06:32:43,089 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 06:32:43,089 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-19 06:32:43,089 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 06:32:43,090 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 06:32:43,091 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 06:32:43,091 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 06:32:43,091 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-19 06:32:43,092 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 06:32:43,092 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-19 06:32:43,092 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-19 06:32:43,092 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-19 06:32:43,094 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-19 06:32:43,094 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 06:32:43,094 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_cbcde1a6-03e2-4613-9780-51daa8fe0087/bin/utaipan-I9t0OCRTmS/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbcde1a6-03e2-4613-9780-51daa8fe0087/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 75b1aed7e7cb1bec6496160634d456a50c33979e7f90c34d568c6a02281e03b1 [2022-11-19 06:32:43,469 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 06:32:43,502 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 06:32:43,505 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 06:32:43,507 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 06:32:43,508 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 06:32:43,510 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbcde1a6-03e2-4613-9780-51daa8fe0087/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-irda-vlsi_ir.cil.i [2022-11-19 06:32:43,615 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbcde1a6-03e2-4613-9780-51daa8fe0087/bin/utaipan-I9t0OCRTmS/data/65953c748/0b203b0a4feb41348a58ec6c0a7b3976/FLAG7e0f2adee [2022-11-19 06:32:44,719 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 06:32:44,720 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbcde1a6-03e2-4613-9780-51daa8fe0087/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-irda-vlsi_ir.cil.i [2022-11-19 06:32:44,810 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbcde1a6-03e2-4613-9780-51daa8fe0087/bin/utaipan-I9t0OCRTmS/data/65953c748/0b203b0a4feb41348a58ec6c0a7b3976/FLAG7e0f2adee [2022-11-19 06:32:45,097 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbcde1a6-03e2-4613-9780-51daa8fe0087/bin/utaipan-I9t0OCRTmS/data/65953c748/0b203b0a4feb41348a58ec6c0a7b3976 [2022-11-19 06:32:45,100 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 06:32:45,101 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 06:32:45,104 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 06:32:45,105 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 06:32:45,112 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 06:32:45,113 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 06:32:45" (1/1) ... [2022-11-19 06:32:45,114 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@125e4bae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:32:45, skipping insertion in model container [2022-11-19 06:32:45,115 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 06:32:45" (1/1) ... [2022-11-19 06:32:45,124 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 06:32:45,346 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 06:32:49,169 WARN L234 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_cbcde1a6-03e2-4613-9780-51daa8fe0087/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-irda-vlsi_ir.cil.i[347848,347861] [2022-11-19 06:32:49,177 WARN L234 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_cbcde1a6-03e2-4613-9780-51daa8fe0087/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-irda-vlsi_ir.cil.i[348017,348030] [2022-11-19 06:32:49,178 WARN L234 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_cbcde1a6-03e2-4613-9780-51daa8fe0087/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-irda-vlsi_ir.cil.i[348184,348197] [2022-11-19 06:32:49,178 WARN L234 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_cbcde1a6-03e2-4613-9780-51daa8fe0087/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-irda-vlsi_ir.cil.i[348352,348365] [2022-11-19 06:32:49,218 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 06:32:49,278 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 06:32:49,918 WARN L234 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_cbcde1a6-03e2-4613-9780-51daa8fe0087/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-irda-vlsi_ir.cil.i[347848,347861] [2022-11-19 06:32:49,919 WARN L234 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_cbcde1a6-03e2-4613-9780-51daa8fe0087/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-irda-vlsi_ir.cil.i[348017,348030] [2022-11-19 06:32:49,920 WARN L234 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_cbcde1a6-03e2-4613-9780-51daa8fe0087/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-irda-vlsi_ir.cil.i[348184,348197] [2022-11-19 06:32:49,920 WARN L234 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_cbcde1a6-03e2-4613-9780-51daa8fe0087/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-irda-vlsi_ir.cil.i[348352,348365] [2022-11-19 06:32:49,934 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 06:32:50,183 INFO L208 MainTranslator]: Completed translation [2022-11-19 06:32:50,184 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:32:50 WrapperNode [2022-11-19 06:32:50,185 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 06:32:50,186 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 06:32:50,186 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 06:32:50,187 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 06:32:50,197 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:32:50" (1/1) ... [2022-11-19 06:32:50,322 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:32:50" (1/1) ... [2022-11-19 06:32:50,532 INFO L138 Inliner]: procedures = 451, calls = 2361, calls flagged for inlining = 206, calls inlined = 184, statements flattened = 5353 [2022-11-19 06:32:50,532 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 06:32:50,533 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 06:32:50,534 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 06:32:50,534 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 06:32:50,547 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:32:50" (1/1) ... [2022-11-19 06:32:50,547 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:32:50" (1/1) ... [2022-11-19 06:32:50,579 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:32:50" (1/1) ... [2022-11-19 06:32:50,580 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:32:50" (1/1) ... [2022-11-19 06:32:50,753 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:32:50" (1/1) ... [2022-11-19 06:32:50,794 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:32:50" (1/1) ... [2022-11-19 06:32:50,829 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:32:50" (1/1) ... [2022-11-19 06:32:50,858 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:32:50" (1/1) ... [2022-11-19 06:32:50,900 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 06:32:50,901 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 06:32:50,902 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 06:32:50,902 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 06:32:50,903 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:32:50" (1/1) ... [2022-11-19 06:32:50,915 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 06:32:50,930 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbcde1a6-03e2-4613-9780-51daa8fe0087/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 06:32:50,952 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbcde1a6-03e2-4613-9780-51daa8fe0087/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 06:32:50,979 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbcde1a6-03e2-4613-9780-51daa8fe0087/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 06:32:51,096 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2022-11-19 06:32:51,097 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2022-11-19 06:32:51,097 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2022-11-19 06:32:51,097 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2022-11-19 06:32:51,097 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-19 06:32:51,097 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-19 06:32:51,098 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-11-19 06:32:51,098 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-11-19 06:32:51,098 INFO L130 BoogieDeclarations]: Found specification of procedure rd_get_count [2022-11-19 06:32:51,098 INFO L138 BoogieDeclarations]: Found implementation of procedure rd_get_count [2022-11-19 06:32:51,098 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-19 06:32:51,098 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-19 06:32:51,099 INFO L130 BoogieDeclarations]: Found specification of procedure rd_set_status [2022-11-19 06:32:51,099 INFO L138 BoogieDeclarations]: Found implementation of procedure rd_set_status [2022-11-19 06:32:51,099 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2022-11-19 06:32:51,099 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2022-11-19 06:32:51,099 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_sync_single_for_cpu [2022-11-19 06:32:51,099 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_sync_single_for_cpu [2022-11-19 06:32:51,099 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-11-19 06:32:51,100 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-11-19 06:32:51,100 INFO L130 BoogieDeclarations]: Found specification of procedure vlsi_ring_debug [2022-11-19 06:32:51,100 INFO L138 BoogieDeclarations]: Found implementation of procedure vlsi_ring_debug [2022-11-19 06:32:51,100 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-11-19 06:32:51,100 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-11-19 06:32:51,100 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_65 [2022-11-19 06:32:51,101 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_65 [2022-11-19 06:32:51,101 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2022-11-19 06:32:51,101 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2022-11-19 06:32:51,101 INFO L130 BoogieDeclarations]: Found specification of procedure vlsi_close [2022-11-19 06:32:51,101 INFO L138 BoogieDeclarations]: Found implementation of procedure vlsi_close [2022-11-19 06:32:51,101 INFO L130 BoogieDeclarations]: Found specification of procedure vlsi_irda_resume [2022-11-19 06:32:51,101 INFO L138 BoogieDeclarations]: Found implementation of procedure vlsi_irda_resume [2022-11-19 06:32:51,102 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2022-11-19 06:32:51,102 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2022-11-19 06:32:51,102 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-19 06:32:51,102 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-11-19 06:32:51,102 INFO L130 BoogieDeclarations]: Found specification of procedure remove_proc_entry [2022-11-19 06:32:51,102 INFO L138 BoogieDeclarations]: Found implementation of procedure remove_proc_entry [2022-11-19 06:32:51,103 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-19 06:32:51,103 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-19 06:32:51,104 INFO L130 BoogieDeclarations]: Found specification of procedure vlsi_free_ring [2022-11-19 06:32:51,104 INFO L138 BoogieDeclarations]: Found implementation of procedure vlsi_free_ring [2022-11-19 06:32:51,104 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2022-11-19 06:32:51,104 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2022-11-19 06:32:51,104 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-19 06:32:51,104 INFO L130 BoogieDeclarations]: Found specification of procedure netif_queue_stopped [2022-11-19 06:32:51,105 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_queue_stopped [2022-11-19 06:32:51,105 INFO L130 BoogieDeclarations]: Found specification of procedure capable [2022-11-19 06:32:51,105 INFO L138 BoogieDeclarations]: Found implementation of procedure capable [2022-11-19 06:32:51,105 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-11-19 06:32:51,105 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-11-19 06:32:51,105 INFO L130 BoogieDeclarations]: Found specification of procedure vlsi_tx_timeout [2022-11-19 06:32:51,105 INFO L138 BoogieDeclarations]: Found implementation of procedure vlsi_tx_timeout [2022-11-19 06:32:51,108 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-11-19 06:32:51,108 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-11-19 06:32:51,108 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-19 06:32:51,108 INFO L130 BoogieDeclarations]: Found specification of procedure vlsi_destroy_hwif [2022-11-19 06:32:51,109 INFO L138 BoogieDeclarations]: Found implementation of procedure vlsi_destroy_hwif [2022-11-19 06:32:51,109 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-11-19 06:32:51,109 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-11-19 06:32:51,109 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-19 06:32:51,109 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-11-19 06:32:51,110 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-11-19 06:32:51,110 INFO L130 BoogieDeclarations]: Found specification of procedure vlsi_stop_hw [2022-11-19 06:32:51,110 INFO L138 BoogieDeclarations]: Found implementation of procedure vlsi_stop_hw [2022-11-19 06:32:51,111 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-19 06:32:51,111 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-11-19 06:32:51,112 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-11-19 06:32:51,112 INFO L130 BoogieDeclarations]: Found specification of procedure vlsi_irda_remove [2022-11-19 06:32:51,112 INFO L138 BoogieDeclarations]: Found implementation of procedure vlsi_irda_remove [2022-11-19 06:32:51,112 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-19 06:32:51,112 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-19 06:32:51,113 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-11-19 06:32:51,113 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-11-19 06:32:51,113 INFO L130 BoogieDeclarations]: Found specification of procedure pci_choose_state [2022-11-19 06:32:51,114 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_choose_state [2022-11-19 06:32:51,114 INFO L130 BoogieDeclarations]: Found specification of procedure vlsi_clear_regs [2022-11-19 06:32:51,115 INFO L138 BoogieDeclarations]: Found implementation of procedure vlsi_clear_regs [2022-11-19 06:32:51,115 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-11-19 06:32:51,115 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-11-19 06:32:51,115 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_dma_mask [2022-11-19 06:32:51,116 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_dma_mask [2022-11-19 06:32:51,117 INFO L130 BoogieDeclarations]: Found specification of procedure vlsi_start_hw [2022-11-19 06:32:51,117 INFO L138 BoogieDeclarations]: Found implementation of procedure vlsi_start_hw [2022-11-19 06:32:51,117 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2022-11-19 06:32:51,118 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2022-11-19 06:32:51,119 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-11-19 06:32:51,119 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-11-19 06:32:51,120 INFO L130 BoogieDeclarations]: Found specification of procedure rd_activate [2022-11-19 06:32:51,120 INFO L138 BoogieDeclarations]: Found implementation of procedure rd_activate [2022-11-19 06:32:51,120 INFO L130 BoogieDeclarations]: Found specification of procedure rd_is_active [2022-11-19 06:32:51,120 INFO L138 BoogieDeclarations]: Found implementation of procedure rd_is_active [2022-11-19 06:32:51,120 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-11-19 06:32:51,120 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-11-19 06:32:51,121 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-19 06:32:51,121 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2022-11-19 06:32:51,121 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2022-11-19 06:32:51,122 INFO L130 BoogieDeclarations]: Found specification of procedure rd_set_count [2022-11-19 06:32:51,122 INFO L138 BoogieDeclarations]: Found implementation of procedure rd_set_count [2022-11-19 06:32:51,122 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2022-11-19 06:32:51,122 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2022-11-19 06:32:51,123 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-19 06:32:51,123 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-19 06:32:51,124 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-19 06:32:51,125 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-19 06:32:51,129 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-19 06:32:51,129 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-19 06:32:51,129 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-11-19 06:32:51,130 INFO L130 BoogieDeclarations]: Found specification of procedure vlsi_open [2022-11-19 06:32:51,130 INFO L138 BoogieDeclarations]: Found implementation of procedure vlsi_open [2022-11-19 06:32:51,131 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-19 06:32:51,133 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-19 06:32:51,133 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_vlsi_mod_exit_11_2 [2022-11-19 06:32:51,133 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_vlsi_mod_exit_11_2 [2022-11-19 06:32:51,138 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2022-11-19 06:32:51,139 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2022-11-19 06:32:51,139 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2022-11-19 06:32:51,139 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2022-11-19 06:32:51,140 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-19 06:32:51,140 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-19 06:32:51,140 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2022-11-19 06:32:51,140 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2022-11-19 06:32:51,140 INFO L130 BoogieDeclarations]: Found specification of procedure vlsi_reg_debug [2022-11-19 06:32:51,141 INFO L138 BoogieDeclarations]: Found implementation of procedure vlsi_reg_debug [2022-11-19 06:32:51,141 INFO L130 BoogieDeclarations]: Found specification of procedure vlsi_set_baud [2022-11-19 06:32:51,141 INFO L138 BoogieDeclarations]: Found implementation of procedure vlsi_set_baud [2022-11-19 06:32:51,141 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 06:32:51,141 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 06:32:51,141 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-19 06:32:51,142 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-19 06:32:51,142 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-19 06:32:51,142 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-19 06:32:51,142 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-11-19 06:32:51,142 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-11-19 06:32:51,143 INFO L130 BoogieDeclarations]: Found specification of procedure seq_read [2022-11-19 06:32:51,143 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_read [2022-11-19 06:32:51,143 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_byte [2022-11-19 06:32:51,143 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_byte [2022-11-19 06:32:51,143 INFO L130 BoogieDeclarations]: Found specification of procedure rd_get_status [2022-11-19 06:32:51,143 INFO L138 BoogieDeclarations]: Found implementation of procedure rd_get_status [2022-11-19 06:32:51,144 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-11-19 06:32:51,144 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-11-19 06:32:51,144 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2022-11-19 06:32:51,144 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2022-11-19 06:32:51,144 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-19 06:32:51,145 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-19 06:32:51,145 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-11-19 06:32:51,145 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-11-19 06:32:51,145 INFO L130 BoogieDeclarations]: Found specification of procedure ring_get [2022-11-19 06:32:51,145 INFO L138 BoogieDeclarations]: Found implementation of procedure ring_get [2022-11-19 06:32:51,145 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2022-11-19 06:32:51,146 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2022-11-19 06:32:51,146 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-19 06:32:51,146 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2022-11-19 06:32:51,146 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2022-11-19 06:32:51,146 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-19 06:32:51,146 INFO L130 BoogieDeclarations]: Found specification of procedure ring_last [2022-11-19 06:32:51,147 INFO L138 BoogieDeclarations]: Found implementation of procedure ring_last [2022-11-19 06:32:51,147 INFO L130 BoogieDeclarations]: Found specification of procedure ring_put [2022-11-19 06:32:51,147 INFO L138 BoogieDeclarations]: Found implementation of procedure ring_put [2022-11-19 06:32:51,147 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-19 06:32:51,147 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_byte [2022-11-19 06:32:51,148 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_byte [2022-11-19 06:32:51,148 INFO L130 BoogieDeclarations]: Found specification of procedure do_gettimeofday [2022-11-19 06:32:51,148 INFO L138 BoogieDeclarations]: Found implementation of procedure do_gettimeofday [2022-11-19 06:32:51,148 INFO L130 BoogieDeclarations]: Found specification of procedure outw [2022-11-19 06:32:51,148 INFO L138 BoogieDeclarations]: Found implementation of procedure outw [2022-11-19 06:32:51,148 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2022-11-19 06:32:51,149 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2022-11-19 06:32:51,149 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-11-19 06:32:51,149 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-11-19 06:32:51,149 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2022-11-19 06:32:51,149 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2022-11-19 06:32:51,149 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-11-19 06:32:51,150 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-11-19 06:32:51,150 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2022-11-19 06:32:51,150 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2022-11-19 06:32:51,150 INFO L130 BoogieDeclarations]: Found specification of procedure rd_set_addr_status [2022-11-19 06:32:51,150 INFO L138 BoogieDeclarations]: Found implementation of procedure rd_set_addr_status [2022-11-19 06:32:51,151 INFO L130 BoogieDeclarations]: Found specification of procedure rd_get_addr [2022-11-19 06:32:51,153 INFO L138 BoogieDeclarations]: Found implementation of procedure rd_get_addr [2022-11-19 06:32:51,153 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2022-11-19 06:32:51,153 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2022-11-19 06:32:51,153 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-11-19 06:32:51,154 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-11-19 06:32:51,154 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-11-19 06:32:51,154 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-11-19 06:32:51,154 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-19 06:32:51,154 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-19 06:32:51,154 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-19 06:32:51,155 INFO L130 BoogieDeclarations]: Found specification of procedure net_ratelimit [2022-11-19 06:32:51,155 INFO L138 BoogieDeclarations]: Found implementation of procedure net_ratelimit [2022-11-19 06:32:51,155 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-19 06:32:51,155 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-19 06:32:51,155 INFO L130 BoogieDeclarations]: Found specification of procedure irlap_close [2022-11-19 06:32:51,156 INFO L138 BoogieDeclarations]: Found implementation of procedure irlap_close [2022-11-19 06:32:51,156 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2022-11-19 06:32:51,156 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2022-11-19 06:32:51,156 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2022-11-19 06:32:51,156 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2022-11-19 06:32:51,156 INFO L130 BoogieDeclarations]: Found specification of procedure vlsi_process_tx [2022-11-19 06:32:51,157 INFO L138 BoogieDeclarations]: Found implementation of procedure vlsi_process_tx [2022-11-19 06:32:51,157 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-11-19 06:32:51,157 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-11-19 06:32:51,157 INFO L130 BoogieDeclarations]: Found specification of procedure vlsi_alloc_ring [2022-11-19 06:32:51,157 INFO L138 BoogieDeclarations]: Found implementation of procedure vlsi_alloc_ring [2022-11-19 06:32:51,157 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_vlsi_irda_dev [2022-11-19 06:32:51,158 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_vlsi_irda_dev [2022-11-19 06:32:51,158 INFO L130 BoogieDeclarations]: Found specification of procedure vlsi_fill_rx [2022-11-19 06:32:51,158 INFO L138 BoogieDeclarations]: Found implementation of procedure vlsi_fill_rx [2022-11-19 06:32:51,158 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2022-11-19 06:32:51,158 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2022-11-19 06:32:51,158 INFO L130 BoogieDeclarations]: Found specification of procedure vlsi_process_rx [2022-11-19 06:32:51,159 INFO L138 BoogieDeclarations]: Found implementation of procedure vlsi_process_rx [2022-11-19 06:32:51,159 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2022-11-19 06:32:51,159 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2022-11-19 06:32:51,159 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-19 06:32:51,159 INFO L130 BoogieDeclarations]: Found specification of procedure inw [2022-11-19 06:32:51,160 INFO L138 BoogieDeclarations]: Found implementation of procedure inw [2022-11-19 06:32:51,160 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-11-19 06:32:51,160 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-11-19 06:32:51,160 INFO L130 BoogieDeclarations]: Found specification of procedure ring_first [2022-11-19 06:32:51,160 INFO L138 BoogieDeclarations]: Found implementation of procedure ring_first [2022-11-19 06:32:51,160 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_sync_single_for_device [2022-11-19 06:32:51,161 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_sync_single_for_device [2022-11-19 06:32:52,313 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 06:32:52,341 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 06:32:52,774 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-19 06:33:03,414 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-11-19 06:33:03,561 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 06:33:05,477 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 06:33:05,479 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-19 06:33:05,490 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 06:33:05 BoogieIcfgContainer [2022-11-19 06:33:05,491 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 06:33:05,494 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 06:33:05,494 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 06:33:05,498 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 06:33:05,498 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 06:32:45" (1/3) ... [2022-11-19 06:33:05,499 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4de57958 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 06:33:05, skipping insertion in model container [2022-11-19 06:33:05,499 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:32:50" (2/3) ... [2022-11-19 06:33:05,500 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4de57958 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 06:33:05, skipping insertion in model container [2022-11-19 06:33:05,500 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 06:33:05" (3/3) ... [2022-11-19 06:33:05,501 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-irda-vlsi_ir.cil.i [2022-11-19 06:33:05,526 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 06:33:05,526 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-11-19 06:33:05,660 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 06:33:05,670 INFO L357 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@5737130, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 06:33:05,671 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-11-19 06:33:05,685 INFO L276 IsEmpty]: Start isEmpty. Operand has 1426 states, 808 states have (on average 1.271039603960396) internal successors, (1027), 834 states have internal predecessors, (1027), 512 states have call successors, (512), 104 states have call predecessors, (512), 103 states have return successors, (505), 502 states have call predecessors, (505), 505 states have call successors, (505) [2022-11-19 06:33:05,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-11-19 06:33:05,711 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:33:05,712 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-19 06:33:05,713 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-19 06:33:05,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:33:05,722 INFO L85 PathProgramCache]: Analyzing trace with hash 1056799739, now seen corresponding path program 1 times [2022-11-19 06:33:05,734 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:33:05,736 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1633712630] [2022-11-19 06:33:05,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:33:05,738 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:33:06,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:33:06,936 INFO L134 CoverageAnalysis]: Checked inductivity of 462 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 462 trivial. 0 not checked. [2022-11-19 06:33:06,937 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:33:06,937 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1633712630] [2022-11-19 06:33:06,938 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1633712630] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:33:06,939 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:33:06,939 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 06:33:06,941 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [146078920] [2022-11-19 06:33:06,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:33:06,947 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 06:33:06,947 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:33:06,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 06:33:06,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 06:33:06,996 INFO L87 Difference]: Start difference. First operand has 1426 states, 808 states have (on average 1.271039603960396) internal successors, (1027), 834 states have internal predecessors, (1027), 512 states have call successors, (512), 104 states have call predecessors, (512), 103 states have return successors, (505), 502 states have call predecessors, (505), 505 states have call successors, (505) Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 3 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2022-11-19 06:33:12,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:33:12,277 INFO L93 Difference]: Finished difference Result 4095 states and 5949 transitions. [2022-11-19 06:33:12,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 06:33:12,280 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 3 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 130 [2022-11-19 06:33:12,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:33:12,328 INFO L225 Difference]: With dead ends: 4095 [2022-11-19 06:33:12,328 INFO L226 Difference]: Without dead ends: 2676 [2022-11-19 06:33:12,351 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 06:33:12,359 INFO L413 NwaCegarLoop]: 2317 mSDtfsCounter, 1856 mSDsluCounter, 1726 mSDsCounter, 0 mSdLazyCounter, 553 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1856 SdHoareTripleChecker+Valid, 4043 SdHoareTripleChecker+Invalid, 559 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 553 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2022-11-19 06:33:12,361 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1856 Valid, 4043 Invalid, 559 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [6 Valid, 553 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2022-11-19 06:33:12,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2676 states. [2022-11-19 06:33:12,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2676 to 2648. [2022-11-19 06:33:12,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2648 states, 1511 states have (on average 1.2653871608206486) internal successors, (1912), 1566 states have internal predecessors, (1912), 934 states have call successors, (934), 203 states have call predecessors, (934), 200 states have return successors, (937), 916 states have call predecessors, (937), 930 states have call successors, (937) [2022-11-19 06:33:12,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2648 states to 2648 states and 3783 transitions. [2022-11-19 06:33:12,667 INFO L78 Accepts]: Start accepts. Automaton has 2648 states and 3783 transitions. Word has length 130 [2022-11-19 06:33:12,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:33:12,668 INFO L495 AbstractCegarLoop]: Abstraction has 2648 states and 3783 transitions. [2022-11-19 06:33:12,668 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 3 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2022-11-19 06:33:12,669 INFO L276 IsEmpty]: Start isEmpty. Operand 2648 states and 3783 transitions. [2022-11-19 06:33:12,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2022-11-19 06:33:12,674 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:33:12,674 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-19 06:33:12,675 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-19 06:33:12,675 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-19 06:33:12,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:33:12,676 INFO L85 PathProgramCache]: Analyzing trace with hash -355416744, now seen corresponding path program 1 times [2022-11-19 06:33:12,676 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:33:12,676 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1097181128] [2022-11-19 06:33:12,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:33:12,677 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:33:12,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:33:13,259 INFO L134 CoverageAnalysis]: Checked inductivity of 462 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 462 trivial. 0 not checked. [2022-11-19 06:33:13,261 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:33:13,261 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1097181128] [2022-11-19 06:33:13,261 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1097181128] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:33:13,262 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:33:13,262 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 06:33:13,262 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1784070942] [2022-11-19 06:33:13,265 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:33:13,267 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 06:33:13,268 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:33:13,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 06:33:13,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 06:33:13,272 INFO L87 Difference]: Start difference. First operand 2648 states and 3783 transitions. Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 3 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2022-11-19 06:33:19,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:33:19,629 INFO L93 Difference]: Finished difference Result 7768 states and 11078 transitions. [2022-11-19 06:33:19,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 06:33:19,630 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 3 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 131 [2022-11-19 06:33:19,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:33:19,677 INFO L225 Difference]: With dead ends: 7768 [2022-11-19 06:33:19,678 INFO L226 Difference]: Without dead ends: 5143 [2022-11-19 06:33:19,695 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 06:33:19,697 INFO L413 NwaCegarLoop]: 2212 mSDtfsCounter, 1902 mSDsluCounter, 1692 mSDsCounter, 0 mSdLazyCounter, 544 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1902 SdHoareTripleChecker+Valid, 3904 SdHoareTripleChecker+Invalid, 551 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 544 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2022-11-19 06:33:19,697 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1902 Valid, 3904 Invalid, 551 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 544 Invalid, 0 Unknown, 0 Unchecked, 6.0s Time] [2022-11-19 06:33:19,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5143 states. [2022-11-19 06:33:19,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5143 to 5139. [2022-11-19 06:33:19,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5139 states, 2942 states have (on average 1.2607070020394289) internal successors, (3709), 3040 states have internal predecessors, (3709), 1797 states have call successors, (1797), 402 states have call predecessors, (1797), 397 states have return successors, (1807), 1768 states have call predecessors, (1807), 1793 states have call successors, (1807) [2022-11-19 06:33:20,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5139 states to 5139 states and 7313 transitions. [2022-11-19 06:33:20,032 INFO L78 Accepts]: Start accepts. Automaton has 5139 states and 7313 transitions. Word has length 131 [2022-11-19 06:33:20,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:33:20,033 INFO L495 AbstractCegarLoop]: Abstraction has 5139 states and 7313 transitions. [2022-11-19 06:33:20,033 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 3 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2022-11-19 06:33:20,033 INFO L276 IsEmpty]: Start isEmpty. Operand 5139 states and 7313 transitions. [2022-11-19 06:33:20,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-11-19 06:33:20,041 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:33:20,042 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-19 06:33:20,042 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-19 06:33:20,042 INFO L420 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)] === [2022-11-19 06:33:20,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:33:20,054 INFO L85 PathProgramCache]: Analyzing trace with hash 720187585, now seen corresponding path program 1 times [2022-11-19 06:33:20,054 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:33:20,055 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [602760439] [2022-11-19 06:33:20,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:33:20,055 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:33:20,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:33:20,743 INFO L134 CoverageAnalysis]: Checked inductivity of 462 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 462 trivial. 0 not checked. [2022-11-19 06:33:20,744 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:33:20,744 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [602760439] [2022-11-19 06:33:20,744 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [602760439] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:33:20,745 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:33:20,745 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 06:33:20,745 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [216013053] [2022-11-19 06:33:20,745 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:33:20,746 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 06:33:20,750 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:33:20,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 06:33:20,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 06:33:20,753 INFO L87 Difference]: Start difference. First operand 5139 states and 7313 transitions. Second operand has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 3 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2022-11-19 06:33:23,746 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:33:27,076 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:33:27,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:33:27,106 INFO L93 Difference]: Finished difference Result 14867 states and 21069 transitions. [2022-11-19 06:33:27,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 06:33:27,107 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 3 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 135 [2022-11-19 06:33:27,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:33:27,205 INFO L225 Difference]: With dead ends: 14867 [2022-11-19 06:33:27,206 INFO L226 Difference]: Without dead ends: 9751 [2022-11-19 06:33:27,248 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 06:33:27,250 INFO L413 NwaCegarLoop]: 2196 mSDtfsCounter, 1784 mSDsluCounter, 1710 mSDsCounter, 0 mSdLazyCounter, 549 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1784 SdHoareTripleChecker+Valid, 3906 SdHoareTripleChecker+Invalid, 556 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 549 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2022-11-19 06:33:27,250 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1784 Valid, 3906 Invalid, 556 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 549 Invalid, 0 Unknown, 0 Unchecked, 5.6s Time] [2022-11-19 06:33:27,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9751 states. [2022-11-19 06:33:28,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9751 to 9719. [2022-11-19 06:33:28,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9719 states, 5570 states have (on average 1.2533213644524237) internal successors, (6981), 5744 states have internal predecessors, (6981), 3359 states have call successors, (3359), 796 states have call predecessors, (3359), 787 states have return successors, (3389), 3296 states have call predecessors, (3389), 3355 states have call successors, (3389) [2022-11-19 06:33:28,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9719 states to 9719 states and 13729 transitions. [2022-11-19 06:33:28,231 INFO L78 Accepts]: Start accepts. Automaton has 9719 states and 13729 transitions. Word has length 135 [2022-11-19 06:33:28,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:33:28,232 INFO L495 AbstractCegarLoop]: Abstraction has 9719 states and 13729 transitions. [2022-11-19 06:33:28,234 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 3 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2022-11-19 06:33:28,234 INFO L276 IsEmpty]: Start isEmpty. Operand 9719 states and 13729 transitions. [2022-11-19 06:33:28,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2022-11-19 06:33:28,244 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:33:28,244 INFO L195 NwaCegarLoop]: trace histogram [12, 11, 11, 11, 11, 11, 11, 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] [2022-11-19 06:33:28,245 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-19 06:33:28,245 INFO L420 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)] === [2022-11-19 06:33:28,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:33:28,247 INFO L85 PathProgramCache]: Analyzing trace with hash 1469833131, now seen corresponding path program 1 times [2022-11-19 06:33:28,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:33:28,247 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1107901664] [2022-11-19 06:33:28,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:33:28,248 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:33:28,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:33:28,830 INFO L134 CoverageAnalysis]: Checked inductivity of 464 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 464 trivial. 0 not checked. [2022-11-19 06:33:28,831 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:33:28,831 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1107901664] [2022-11-19 06:33:28,831 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1107901664] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:33:28,831 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:33:28,832 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 06:33:28,832 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1198776290] [2022-11-19 06:33:28,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:33:28,833 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 06:33:28,834 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:33:28,835 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 06:33:28,835 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 06:33:28,835 INFO L87 Difference]: Start difference. First operand 9719 states and 13729 transitions. Second operand has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 3 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2022-11-19 06:33:35,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:33:35,706 INFO L93 Difference]: Finished difference Result 17435 states and 24602 transitions. [2022-11-19 06:33:35,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 06:33:35,707 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 3 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 162 [2022-11-19 06:33:35,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:33:35,763 INFO L225 Difference]: With dead ends: 17435 [2022-11-19 06:33:35,763 INFO L226 Difference]: Without dead ends: 7739 [2022-11-19 06:33:35,813 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 06:33:35,814 INFO L413 NwaCegarLoop]: 2445 mSDtfsCounter, 1258 mSDsluCounter, 1711 mSDsCounter, 0 mSdLazyCounter, 661 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1258 SdHoareTripleChecker+Valid, 4156 SdHoareTripleChecker+Invalid, 678 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 661 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2022-11-19 06:33:35,815 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1258 Valid, 4156 Invalid, 678 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 661 Invalid, 0 Unknown, 0 Unchecked, 6.3s Time] [2022-11-19 06:33:35,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7739 states. [2022-11-19 06:33:36,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7739 to 7707. [2022-11-19 06:33:36,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7707 states, 4447 states have (on average 1.257027209354621) internal successors, (5590), 4596 states have internal predecessors, (5590), 2594 states have call successors, (2594), 672 states have call predecessors, (2594), 663 states have return successors, (2607), 2534 states have call predecessors, (2607), 2590 states have call successors, (2607) [2022-11-19 06:33:36,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7707 states to 7707 states and 10791 transitions. [2022-11-19 06:33:36,270 INFO L78 Accepts]: Start accepts. Automaton has 7707 states and 10791 transitions. Word has length 162 [2022-11-19 06:33:36,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:33:36,272 INFO L495 AbstractCegarLoop]: Abstraction has 7707 states and 10791 transitions. [2022-11-19 06:33:36,272 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 3 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2022-11-19 06:33:36,272 INFO L276 IsEmpty]: Start isEmpty. Operand 7707 states and 10791 transitions. [2022-11-19 06:33:36,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2022-11-19 06:33:36,277 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:33:36,277 INFO L195 NwaCegarLoop]: trace histogram [14, 11, 11, 11, 11, 11, 11, 3, 3, 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] [2022-11-19 06:33:36,278 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-19 06:33:36,278 INFO L420 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)] === [2022-11-19 06:33:36,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:33:36,279 INFO L85 PathProgramCache]: Analyzing trace with hash 512918307, now seen corresponding path program 1 times [2022-11-19 06:33:36,279 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:33:36,280 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [876456020] [2022-11-19 06:33:36,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:33:36,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:33:36,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:33:37,070 INFO L134 CoverageAnalysis]: Checked inductivity of 530 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 530 trivial. 0 not checked. [2022-11-19 06:33:37,070 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:33:37,071 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [876456020] [2022-11-19 06:33:37,071 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [876456020] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:33:37,071 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:33:37,071 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-19 06:33:37,072 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [26257202] [2022-11-19 06:33:37,072 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:33:37,072 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 06:33:37,073 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:33:37,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 06:33:37,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-19 06:33:37,074 INFO L87 Difference]: Start difference. First operand 7707 states and 10791 transitions. Second operand has 5 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-19 06:33:43,861 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:33:44,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:33:44,053 INFO L93 Difference]: Finished difference Result 7713 states and 10796 transitions. [2022-11-19 06:33:44,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-19 06:33:44,055 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 168 [2022-11-19 06:33:44,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:33:44,105 INFO L225 Difference]: With dead ends: 7713 [2022-11-19 06:33:44,106 INFO L226 Difference]: Without dead ends: 7711 [2022-11-19 06:33:44,111 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-19 06:33:44,113 INFO L413 NwaCegarLoop]: 1748 mSDtfsCounter, 1966 mSDsluCounter, 3482 mSDsCounter, 0 mSdLazyCounter, 815 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1978 SdHoareTripleChecker+Valid, 5230 SdHoareTripleChecker+Invalid, 816 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 815 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2022-11-19 06:33:44,113 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1978 Valid, 5230 Invalid, 816 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 815 Invalid, 0 Unknown, 0 Unchecked, 6.5s Time] [2022-11-19 06:33:44,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7711 states. [2022-11-19 06:33:44,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7711 to 7711. [2022-11-19 06:33:44,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7711 states, 4450 states have (on average 1.2568539325842696) internal successors, (5593), 4599 states have internal predecessors, (5593), 2594 states have call successors, (2594), 673 states have call predecessors, (2594), 664 states have return successors, (2607), 2534 states have call predecessors, (2607), 2590 states have call successors, (2607) [2022-11-19 06:33:44,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7711 states to 7711 states and 10794 transitions. [2022-11-19 06:33:44,616 INFO L78 Accepts]: Start accepts. Automaton has 7711 states and 10794 transitions. Word has length 168 [2022-11-19 06:33:44,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:33:44,617 INFO L495 AbstractCegarLoop]: Abstraction has 7711 states and 10794 transitions. [2022-11-19 06:33:44,618 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-19 06:33:44,618 INFO L276 IsEmpty]: Start isEmpty. Operand 7711 states and 10794 transitions. [2022-11-19 06:33:44,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2022-11-19 06:33:44,622 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:33:44,622 INFO L195 NwaCegarLoop]: trace histogram [14, 11, 11, 11, 11, 11, 11, 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] [2022-11-19 06:33:44,622 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-19 06:33:44,623 INFO L420 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)] === [2022-11-19 06:33:44,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:33:44,624 INFO L85 PathProgramCache]: Analyzing trace with hash -967789548, now seen corresponding path program 1 times [2022-11-19 06:33:44,624 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:33:44,624 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [573120106] [2022-11-19 06:33:44,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:33:44,625 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:33:44,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:33:45,359 INFO L134 CoverageAnalysis]: Checked inductivity of 532 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 530 trivial. 0 not checked. [2022-11-19 06:33:45,360 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:33:45,360 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [573120106] [2022-11-19 06:33:45,360 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [573120106] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:33:45,361 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:33:45,361 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-19 06:33:45,361 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1704275991] [2022-11-19 06:33:45,361 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:33:45,362 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 06:33:45,362 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:33:45,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 06:33:45,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-19 06:33:45,363 INFO L87 Difference]: Start difference. First operand 7711 states and 10794 transitions. Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-11-19 06:33:52,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:33:52,687 INFO L93 Difference]: Finished difference Result 7717 states and 10799 transitions. [2022-11-19 06:33:52,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-19 06:33:52,688 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 173 [2022-11-19 06:33:52,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:33:52,734 INFO L225 Difference]: With dead ends: 7717 [2022-11-19 06:33:52,734 INFO L226 Difference]: Without dead ends: 7715 [2022-11-19 06:33:52,741 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-19 06:33:52,742 INFO L413 NwaCegarLoop]: 1751 mSDtfsCounter, 1961 mSDsluCounter, 3482 mSDsCounter, 0 mSdLazyCounter, 815 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1972 SdHoareTripleChecker+Valid, 5233 SdHoareTripleChecker+Invalid, 816 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 815 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2022-11-19 06:33:52,743 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1972 Valid, 5233 Invalid, 816 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 815 Invalid, 0 Unknown, 0 Unchecked, 6.9s Time] [2022-11-19 06:33:52,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7715 states. [2022-11-19 06:33:53,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7715 to 7715. [2022-11-19 06:33:53,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7715 states, 4453 states have (on average 1.2566808892881203) internal successors, (5596), 4602 states have internal predecessors, (5596), 2594 states have call successors, (2594), 674 states have call predecessors, (2594), 665 states have return successors, (2607), 2534 states have call predecessors, (2607), 2590 states have call successors, (2607) [2022-11-19 06:33:53,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7715 states to 7715 states and 10797 transitions. [2022-11-19 06:33:53,415 INFO L78 Accepts]: Start accepts. Automaton has 7715 states and 10797 transitions. Word has length 173 [2022-11-19 06:33:53,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:33:53,416 INFO L495 AbstractCegarLoop]: Abstraction has 7715 states and 10797 transitions. [2022-11-19 06:33:53,417 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-11-19 06:33:53,417 INFO L276 IsEmpty]: Start isEmpty. Operand 7715 states and 10797 transitions. [2022-11-19 06:33:53,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2022-11-19 06:33:53,421 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:33:53,421 INFO L195 NwaCegarLoop]: trace histogram [14, 11, 11, 11, 11, 11, 11, 4, 4, 3, 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] [2022-11-19 06:33:53,422 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-19 06:33:53,422 INFO L420 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)] === [2022-11-19 06:33:53,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:33:53,423 INFO L85 PathProgramCache]: Analyzing trace with hash -171751357, now seen corresponding path program 1 times [2022-11-19 06:33:53,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:33:53,423 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [796241804] [2022-11-19 06:33:53,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:33:53,424 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:33:53,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:33:54,144 INFO L134 CoverageAnalysis]: Checked inductivity of 543 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 539 trivial. 0 not checked. [2022-11-19 06:33:54,145 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:33:54,145 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [796241804] [2022-11-19 06:33:54,145 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [796241804] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:33:54,146 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:33:54,146 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-19 06:33:54,146 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1288527444] [2022-11-19 06:33:54,146 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:33:54,147 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 06:33:54,147 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:33:54,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 06:33:54,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-19 06:33:54,148 INFO L87 Difference]: Start difference. First operand 7715 states and 10797 transitions. Second operand has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 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) [2022-11-19 06:34:01,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:34:01,658 INFO L93 Difference]: Finished difference Result 7721 states and 10802 transitions. [2022-11-19 06:34:01,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-19 06:34:01,659 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 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 184 [2022-11-19 06:34:01,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:34:01,705 INFO L225 Difference]: With dead ends: 7721 [2022-11-19 06:34:01,705 INFO L226 Difference]: Without dead ends: 7719 [2022-11-19 06:34:01,712 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-19 06:34:01,713 INFO L413 NwaCegarLoop]: 1751 mSDtfsCounter, 1960 mSDsluCounter, 3482 mSDsCounter, 0 mSdLazyCounter, 815 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1970 SdHoareTripleChecker+Valid, 5233 SdHoareTripleChecker+Invalid, 816 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 815 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.0s IncrementalHoareTripleChecker+Time [2022-11-19 06:34:01,714 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1970 Valid, 5233 Invalid, 816 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 815 Invalid, 0 Unknown, 0 Unchecked, 7.0s Time] [2022-11-19 06:34:01,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7719 states. [2022-11-19 06:34:02,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7719 to 7719. [2022-11-19 06:34:02,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7719 states, 4456 states have (on average 1.256508078994614) internal successors, (5599), 4605 states have internal predecessors, (5599), 2594 states have call successors, (2594), 675 states have call predecessors, (2594), 666 states have return successors, (2607), 2534 states have call predecessors, (2607), 2590 states have call successors, (2607) [2022-11-19 06:34:02,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7719 states to 7719 states and 10800 transitions. [2022-11-19 06:34:02,699 INFO L78 Accepts]: Start accepts. Automaton has 7719 states and 10800 transitions. Word has length 184 [2022-11-19 06:34:02,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:34:02,700 INFO L495 AbstractCegarLoop]: Abstraction has 7719 states and 10800 transitions. [2022-11-19 06:34:02,701 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 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) [2022-11-19 06:34:02,701 INFO L276 IsEmpty]: Start isEmpty. Operand 7719 states and 10800 transitions. [2022-11-19 06:34:02,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2022-11-19 06:34:02,707 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:34:02,707 INFO L195 NwaCegarLoop]: trace histogram [14, 11, 11, 11, 11, 11, 11, 4, 4, 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] [2022-11-19 06:34:02,707 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-19 06:34:02,708 INFO L420 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)] === [2022-11-19 06:34:02,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:34:02,709 INFO L85 PathProgramCache]: Analyzing trace with hash 1319654004, now seen corresponding path program 1 times [2022-11-19 06:34:02,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:34:02,709 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [709326700] [2022-11-19 06:34:02,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:34:02,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:34:02,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:34:03,577 INFO L134 CoverageAnalysis]: Checked inductivity of 553 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 547 trivial. 0 not checked. [2022-11-19 06:34:03,577 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:34:03,577 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [709326700] [2022-11-19 06:34:03,578 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [709326700] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:34:03,578 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:34:03,578 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-19 06:34:03,579 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1671244326] [2022-11-19 06:34:03,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:34:03,579 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 06:34:03,580 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:34:03,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 06:34:03,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-19 06:34:03,581 INFO L87 Difference]: Start difference. First operand 7719 states and 10800 transitions. Second operand has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 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) [2022-11-19 06:34:12,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:34:12,016 INFO L93 Difference]: Finished difference Result 7725 states and 10805 transitions. [2022-11-19 06:34:12,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-19 06:34:12,017 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 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 189 [2022-11-19 06:34:12,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:34:12,062 INFO L225 Difference]: With dead ends: 7725 [2022-11-19 06:34:12,062 INFO L226 Difference]: Without dead ends: 7723 [2022-11-19 06:34:12,069 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-19 06:34:12,070 INFO L413 NwaCegarLoop]: 1751 mSDtfsCounter, 1960 mSDsluCounter, 3482 mSDsCounter, 0 mSdLazyCounter, 815 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1969 SdHoareTripleChecker+Valid, 5233 SdHoareTripleChecker+Invalid, 816 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 815 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.8s IncrementalHoareTripleChecker+Time [2022-11-19 06:34:12,070 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1969 Valid, 5233 Invalid, 816 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 815 Invalid, 0 Unknown, 0 Unchecked, 7.8s Time] [2022-11-19 06:34:12,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7723 states. [2022-11-19 06:34:12,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7723 to 7723. [2022-11-19 06:34:12,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7723 states, 4459 states have (on average 1.2563355012334605) internal successors, (5602), 4608 states have internal predecessors, (5602), 2594 states have call successors, (2594), 676 states have call predecessors, (2594), 667 states have return successors, (2607), 2534 states have call predecessors, (2607), 2590 states have call successors, (2607) [2022-11-19 06:34:12,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7723 states to 7723 states and 10803 transitions. [2022-11-19 06:34:12,840 INFO L78 Accepts]: Start accepts. Automaton has 7723 states and 10803 transitions. Word has length 189 [2022-11-19 06:34:12,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:34:12,841 INFO L495 AbstractCegarLoop]: Abstraction has 7723 states and 10803 transitions. [2022-11-19 06:34:12,842 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 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) [2022-11-19 06:34:12,842 INFO L276 IsEmpty]: Start isEmpty. Operand 7723 states and 10803 transitions. [2022-11-19 06:34:12,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2022-11-19 06:34:12,847 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:34:12,848 INFO L195 NwaCegarLoop]: trace histogram [14, 11, 11, 11, 11, 11, 11, 5, 4, 4, 4, 4, 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] [2022-11-19 06:34:12,848 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-19 06:34:12,848 INFO L420 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)] === [2022-11-19 06:34:12,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:34:12,849 INFO L85 PathProgramCache]: Analyzing trace with hash 554964643, now seen corresponding path program 1 times [2022-11-19 06:34:12,849 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:34:12,849 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1700156332] [2022-11-19 06:34:12,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:34:12,850 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:34:12,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:34:13,508 INFO L134 CoverageAnalysis]: Checked inductivity of 567 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 559 trivial. 0 not checked. [2022-11-19 06:34:13,508 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:34:13,509 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1700156332] [2022-11-19 06:34:13,509 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1700156332] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:34:13,509 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:34:13,509 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-19 06:34:13,509 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2146454326] [2022-11-19 06:34:13,510 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:34:13,511 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 06:34:13,512 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:34:13,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 06:34:13,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-19 06:34:13,513 INFO L87 Difference]: Start difference. First operand 7723 states and 10803 transitions. Second operand has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2022-11-19 06:34:20,015 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:34:20,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:34:20,862 INFO L93 Difference]: Finished difference Result 7729 states and 10808 transitions. [2022-11-19 06:34:20,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-19 06:34:20,862 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 194 [2022-11-19 06:34:20,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:34:20,906 INFO L225 Difference]: With dead ends: 7729 [2022-11-19 06:34:20,906 INFO L226 Difference]: Without dead ends: 7727 [2022-11-19 06:34:20,913 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-19 06:34:20,914 INFO L413 NwaCegarLoop]: 1751 mSDtfsCounter, 1960 mSDsluCounter, 3482 mSDsCounter, 0 mSdLazyCounter, 815 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1968 SdHoareTripleChecker+Valid, 5233 SdHoareTripleChecker+Invalid, 816 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 815 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.8s IncrementalHoareTripleChecker+Time [2022-11-19 06:34:20,914 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1968 Valid, 5233 Invalid, 816 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 815 Invalid, 0 Unknown, 0 Unchecked, 6.8s Time] [2022-11-19 06:34:20,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7727 states. [2022-11-19 06:34:21,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7727 to 7727. [2022-11-19 06:34:21,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7727 states, 4462 states have (on average 1.2561631555356343) internal successors, (5605), 4611 states have internal predecessors, (5605), 2594 states have call successors, (2594), 677 states have call predecessors, (2594), 668 states have return successors, (2607), 2534 states have call predecessors, (2607), 2590 states have call successors, (2607) [2022-11-19 06:34:21,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7727 states to 7727 states and 10806 transitions. [2022-11-19 06:34:21,629 INFO L78 Accepts]: Start accepts. Automaton has 7727 states and 10806 transitions. Word has length 194 [2022-11-19 06:34:21,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:34:21,632 INFO L495 AbstractCegarLoop]: Abstraction has 7727 states and 10806 transitions. [2022-11-19 06:34:21,632 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2022-11-19 06:34:21,632 INFO L276 IsEmpty]: Start isEmpty. Operand 7727 states and 10806 transitions. [2022-11-19 06:34:21,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2022-11-19 06:34:21,637 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:34:21,638 INFO L195 NwaCegarLoop]: trace histogram [14, 11, 11, 11, 11, 11, 11, 6, 5, 5, 3, 3, 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] [2022-11-19 06:34:21,638 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-19 06:34:21,638 INFO L420 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)] === [2022-11-19 06:34:21,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:34:21,639 INFO L85 PathProgramCache]: Analyzing trace with hash -1263090092, now seen corresponding path program 1 times [2022-11-19 06:34:21,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:34:21,639 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2108806396] [2022-11-19 06:34:21,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:34:21,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:34:21,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:34:22,348 INFO L134 CoverageAnalysis]: Checked inductivity of 580 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 570 trivial. 0 not checked. [2022-11-19 06:34:22,348 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:34:22,348 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2108806396] [2022-11-19 06:34:22,349 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2108806396] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:34:22,349 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:34:22,349 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-19 06:34:22,349 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1859245728] [2022-11-19 06:34:22,349 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:34:22,351 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 06:34:22,351 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:34:22,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 06:34:22,352 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-19 06:34:22,352 INFO L87 Difference]: Start difference. First operand 7727 states and 10806 transitions. Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 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) [2022-11-19 06:34:26,950 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:34:30,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:34:30,613 INFO L93 Difference]: Finished difference Result 7733 states and 10811 transitions. [2022-11-19 06:34:30,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-19 06:34:30,614 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 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 193 [2022-11-19 06:34:30,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:34:30,656 INFO L225 Difference]: With dead ends: 7733 [2022-11-19 06:34:30,656 INFO L226 Difference]: Without dead ends: 7731 [2022-11-19 06:34:30,663 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-19 06:34:30,664 INFO L413 NwaCegarLoop]: 1751 mSDtfsCounter, 1961 mSDsluCounter, 3482 mSDsCounter, 0 mSdLazyCounter, 815 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1968 SdHoareTripleChecker+Valid, 5233 SdHoareTripleChecker+Invalid, 816 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 815 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.7s IncrementalHoareTripleChecker+Time [2022-11-19 06:34:30,664 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1968 Valid, 5233 Invalid, 816 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 815 Invalid, 0 Unknown, 0 Unchecked, 7.7s Time] [2022-11-19 06:34:30,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7731 states. [2022-11-19 06:34:31,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7731 to 7731. [2022-11-19 06:34:31,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7731 states, 4465 states have (on average 1.2559910414333706) internal successors, (5608), 4614 states have internal predecessors, (5608), 2594 states have call successors, (2594), 678 states have call predecessors, (2594), 669 states have return successors, (2607), 2534 states have call predecessors, (2607), 2590 states have call successors, (2607) [2022-11-19 06:34:31,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7731 states to 7731 states and 10809 transitions. [2022-11-19 06:34:31,290 INFO L78 Accepts]: Start accepts. Automaton has 7731 states and 10809 transitions. Word has length 193 [2022-11-19 06:34:31,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:34:31,291 INFO L495 AbstractCegarLoop]: Abstraction has 7731 states and 10809 transitions. [2022-11-19 06:34:31,291 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 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) [2022-11-19 06:34:31,292 INFO L276 IsEmpty]: Start isEmpty. Operand 7731 states and 10809 transitions. [2022-11-19 06:34:31,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2022-11-19 06:34:31,297 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:34:31,297 INFO L195 NwaCegarLoop]: trace histogram [14, 11, 11, 11, 11, 11, 11, 7, 6, 6, 4, 4, 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] [2022-11-19 06:34:31,298 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-19 06:34:31,298 INFO L420 AbstractCegarLoop]: === Iteration 11 === 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)] === [2022-11-19 06:34:31,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:34:31,299 INFO L85 PathProgramCache]: Analyzing trace with hash 1752177923, now seen corresponding path program 1 times [2022-11-19 06:34:31,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:34:31,299 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1367989541] [2022-11-19 06:34:31,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:34:31,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:34:31,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:34:31,910 INFO L134 CoverageAnalysis]: Checked inductivity of 607 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 595 trivial. 0 not checked. [2022-11-19 06:34:31,910 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:34:31,911 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1367989541] [2022-11-19 06:34:31,911 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1367989541] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:34:31,911 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:34:31,911 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-19 06:34:31,911 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1325941449] [2022-11-19 06:34:31,912 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:34:31,913 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 06:34:31,913 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:34:31,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 06:34:31,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-19 06:34:31,915 INFO L87 Difference]: Start difference. First operand 7731 states and 10809 transitions. Second operand has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (29), 3 states have call predecessors, (29), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2022-11-19 06:34:37,593 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:34:39,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:34:39,675 INFO L93 Difference]: Finished difference Result 7737 states and 10814 transitions. [2022-11-19 06:34:39,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-19 06:34:39,676 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (29), 3 states have call predecessors, (29), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 204 [2022-11-19 06:34:39,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:34:39,721 INFO L225 Difference]: With dead ends: 7737 [2022-11-19 06:34:39,722 INFO L226 Difference]: Without dead ends: 7735 [2022-11-19 06:34:39,728 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-19 06:34:39,729 INFO L413 NwaCegarLoop]: 1751 mSDtfsCounter, 1960 mSDsluCounter, 3482 mSDsCounter, 0 mSdLazyCounter, 815 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1966 SdHoareTripleChecker+Valid, 5233 SdHoareTripleChecker+Invalid, 816 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 815 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.1s IncrementalHoareTripleChecker+Time [2022-11-19 06:34:39,729 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1966 Valid, 5233 Invalid, 816 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 815 Invalid, 0 Unknown, 0 Unchecked, 7.1s Time] [2022-11-19 06:34:39,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7735 states. [2022-11-19 06:34:40,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7735 to 7735. [2022-11-19 06:34:40,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7735 states, 4468 states have (on average 1.2558191584601612) internal successors, (5611), 4617 states have internal predecessors, (5611), 2594 states have call successors, (2594), 679 states have call predecessors, (2594), 670 states have return successors, (2607), 2534 states have call predecessors, (2607), 2590 states have call successors, (2607) [2022-11-19 06:34:40,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7735 states to 7735 states and 10812 transitions. [2022-11-19 06:34:40,528 INFO L78 Accepts]: Start accepts. Automaton has 7735 states and 10812 transitions. Word has length 204 [2022-11-19 06:34:40,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:34:40,529 INFO L495 AbstractCegarLoop]: Abstraction has 7735 states and 10812 transitions. [2022-11-19 06:34:40,529 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (29), 3 states have call predecessors, (29), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2022-11-19 06:34:40,530 INFO L276 IsEmpty]: Start isEmpty. Operand 7735 states and 10812 transitions. [2022-11-19 06:34:40,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2022-11-19 06:34:40,535 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:34:40,536 INFO L195 NwaCegarLoop]: trace histogram [14, 11, 11, 11, 11, 11, 11, 8, 7, 7, 4, 4, 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] [2022-11-19 06:34:40,536 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-19 06:34:40,536 INFO L420 AbstractCegarLoop]: === Iteration 12 === 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)] === [2022-11-19 06:34:40,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:34:40,537 INFO L85 PathProgramCache]: Analyzing trace with hash 1345323608, now seen corresponding path program 1 times [2022-11-19 06:34:40,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:34:40,538 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [727652977] [2022-11-19 06:34:40,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:34:40,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:34:40,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:34:41,319 INFO L134 CoverageAnalysis]: Checked inductivity of 632 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 618 trivial. 0 not checked. [2022-11-19 06:34:41,320 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:34:41,320 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [727652977] [2022-11-19 06:34:41,320 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [727652977] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:34:41,320 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:34:41,321 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-19 06:34:41,321 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1212012704] [2022-11-19 06:34:41,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:34:41,322 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 06:34:41,322 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:34:41,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 06:34:41,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-19 06:34:41,323 INFO L87 Difference]: Start difference. First operand 7735 states and 10812 transitions. Second operand has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (30), 3 states have call predecessors, (30), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-11-19 06:34:44,841 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:34:48,269 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:34:50,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:34:50,546 INFO L93 Difference]: Finished difference Result 8726 states and 11990 transitions. [2022-11-19 06:34:50,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-19 06:34:50,547 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (30), 3 states have call predecessors, (30), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 208 [2022-11-19 06:34:50,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:34:50,581 INFO L225 Difference]: With dead ends: 8726 [2022-11-19 06:34:50,581 INFO L226 Difference]: Without dead ends: 8724 [2022-11-19 06:34:50,587 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-19 06:34:50,588 INFO L413 NwaCegarLoop]: 1961 mSDtfsCounter, 1724 mSDsluCounter, 4370 mSDsCounter, 0 mSdLazyCounter, 1015 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1729 SdHoareTripleChecker+Valid, 6331 SdHoareTripleChecker+Invalid, 1017 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1015 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.4s IncrementalHoareTripleChecker+Time [2022-11-19 06:34:50,588 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1729 Valid, 6331 Invalid, 1017 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1015 Invalid, 0 Unknown, 0 Unchecked, 8.4s Time] [2022-11-19 06:34:50,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8724 states. [2022-11-19 06:34:51,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8724 to 8724. [2022-11-19 06:34:51,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8724 states, 5016 states have (on average 1.2509968102073366) internal successors, (6275), 5177 states have internal predecessors, (6275), 2850 states have call successors, (2850), 864 states have call predecessors, (2850), 855 states have return successors, (2863), 2790 states have call predecessors, (2863), 2846 states have call successors, (2863) [2022-11-19 06:34:51,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8724 states to 8724 states and 11988 transitions. [2022-11-19 06:34:51,348 INFO L78 Accepts]: Start accepts. Automaton has 8724 states and 11988 transitions. Word has length 208 [2022-11-19 06:34:51,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:34:51,349 INFO L495 AbstractCegarLoop]: Abstraction has 8724 states and 11988 transitions. [2022-11-19 06:34:51,349 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (30), 3 states have call predecessors, (30), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-11-19 06:34:51,349 INFO L276 IsEmpty]: Start isEmpty. Operand 8724 states and 11988 transitions. [2022-11-19 06:34:51,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2022-11-19 06:34:51,356 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:34:51,356 INFO L195 NwaCegarLoop]: trace histogram [14, 11, 11, 11, 11, 11, 11, 9, 8, 8, 3, 3, 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] [2022-11-19 06:34:51,356 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-19 06:34:51,357 INFO L420 AbstractCegarLoop]: === Iteration 13 === 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)] === [2022-11-19 06:34:51,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:34:51,357 INFO L85 PathProgramCache]: Analyzing trace with hash 1548086435, now seen corresponding path program 1 times [2022-11-19 06:34:51,358 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:34:51,358 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2114725458] [2022-11-19 06:34:51,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:34:51,358 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:34:51,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:34:52,015 INFO L134 CoverageAnalysis]: Checked inductivity of 658 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 642 trivial. 0 not checked. [2022-11-19 06:34:52,015 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:34:52,015 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2114725458] [2022-11-19 06:34:52,016 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2114725458] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:34:52,016 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:34:52,016 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-19 06:34:52,016 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1367791190] [2022-11-19 06:34:52,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:34:52,017 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 06:34:52,017 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:34:52,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 06:34:52,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-19 06:34:52,018 INFO L87 Difference]: Start difference. First operand 8724 states and 11988 transitions. Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (29), 3 states have call predecessors, (29), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2022-11-19 06:34:58,460 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:35:00,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:35:00,207 INFO L93 Difference]: Finished difference Result 8730 states and 11993 transitions. [2022-11-19 06:35:00,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-19 06:35:00,208 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (29), 3 states have call predecessors, (29), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 208 [2022-11-19 06:35:00,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:35:00,247 INFO L225 Difference]: With dead ends: 8730 [2022-11-19 06:35:00,247 INFO L226 Difference]: Without dead ends: 8728 [2022-11-19 06:35:00,254 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-19 06:35:00,255 INFO L413 NwaCegarLoop]: 1751 mSDtfsCounter, 1961 mSDsluCounter, 3482 mSDsCounter, 0 mSdLazyCounter, 815 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1965 SdHoareTripleChecker+Valid, 5233 SdHoareTripleChecker+Invalid, 816 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 815 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.4s IncrementalHoareTripleChecker+Time [2022-11-19 06:35:00,255 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1965 Valid, 5233 Invalid, 816 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 815 Invalid, 0 Unknown, 0 Unchecked, 7.4s Time] [2022-11-19 06:35:00,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8728 states. [2022-11-19 06:35:01,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8728 to 8728. [2022-11-19 06:35:01,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8728 states, 5019 states have (on average 1.2508467822275353) internal successors, (6278), 5180 states have internal predecessors, (6278), 2850 states have call successors, (2850), 865 states have call predecessors, (2850), 856 states have return successors, (2863), 2790 states have call predecessors, (2863), 2846 states have call successors, (2863) [2022-11-19 06:35:01,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8728 states to 8728 states and 11991 transitions. [2022-11-19 06:35:01,131 INFO L78 Accepts]: Start accepts. Automaton has 8728 states and 11991 transitions. Word has length 208 [2022-11-19 06:35:01,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:35:01,132 INFO L495 AbstractCegarLoop]: Abstraction has 8728 states and 11991 transitions. [2022-11-19 06:35:01,132 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (29), 3 states have call predecessors, (29), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2022-11-19 06:35:01,132 INFO L276 IsEmpty]: Start isEmpty. Operand 8728 states and 11991 transitions. [2022-11-19 06:35:01,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2022-11-19 06:35:01,139 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:35:01,140 INFO L195 NwaCegarLoop]: trace histogram [14, 11, 11, 11, 11, 11, 11, 10, 9, 9, 4, 4, 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] [2022-11-19 06:35:01,140 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-19 06:35:01,140 INFO L420 AbstractCegarLoop]: === Iteration 14 === 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)] === [2022-11-19 06:35:01,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:35:01,141 INFO L85 PathProgramCache]: Analyzing trace with hash 457126520, now seen corresponding path program 1 times [2022-11-19 06:35:01,141 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:35:01,141 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1950954931] [2022-11-19 06:35:01,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:35:01,142 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:35:01,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:35:01,768 INFO L134 CoverageAnalysis]: Checked inductivity of 696 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 678 trivial. 0 not checked. [2022-11-19 06:35:01,768 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:35:01,769 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1950954931] [2022-11-19 06:35:01,769 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1950954931] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:35:01,769 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:35:01,769 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-19 06:35:01,770 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1027933699] [2022-11-19 06:35:01,770 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:35:01,770 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 06:35:01,771 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:35:01,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 06:35:01,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-19 06:35:01,772 INFO L87 Difference]: Start difference. First operand 8728 states and 11991 transitions. Second operand has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (32), 3 states have call predecessors, (32), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2022-11-19 06:35:09,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:35:09,229 INFO L93 Difference]: Finished difference Result 8734 states and 11996 transitions. [2022-11-19 06:35:09,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-19 06:35:09,229 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (32), 3 states have call predecessors, (32), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) Word has length 218 [2022-11-19 06:35:09,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:35:09,268 INFO L225 Difference]: With dead ends: 8734 [2022-11-19 06:35:09,268 INFO L226 Difference]: Without dead ends: 8732 [2022-11-19 06:35:09,275 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-19 06:35:09,276 INFO L413 NwaCegarLoop]: 1751 mSDtfsCounter, 1960 mSDsluCounter, 3482 mSDsCounter, 0 mSdLazyCounter, 815 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1963 SdHoareTripleChecker+Valid, 5233 SdHoareTripleChecker+Invalid, 816 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 815 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2022-11-19 06:35:09,276 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1963 Valid, 5233 Invalid, 816 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 815 Invalid, 0 Unknown, 0 Unchecked, 6.6s Time] [2022-11-19 06:35:09,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8732 states. [2022-11-19 06:35:10,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8732 to 8732. [2022-11-19 06:35:10,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8732 states, 5022 states have (on average 1.2506969334926323) internal successors, (6281), 5183 states have internal predecessors, (6281), 2850 states have call successors, (2850), 866 states have call predecessors, (2850), 857 states have return successors, (2863), 2790 states have call predecessors, (2863), 2846 states have call successors, (2863) [2022-11-19 06:35:10,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8732 states to 8732 states and 11994 transitions. [2022-11-19 06:35:10,077 INFO L78 Accepts]: Start accepts. Automaton has 8732 states and 11994 transitions. Word has length 218 [2022-11-19 06:35:10,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:35:10,078 INFO L495 AbstractCegarLoop]: Abstraction has 8732 states and 11994 transitions. [2022-11-19 06:35:10,078 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (32), 3 states have call predecessors, (32), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2022-11-19 06:35:10,079 INFO L276 IsEmpty]: Start isEmpty. Operand 8732 states and 11994 transitions. [2022-11-19 06:35:10,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-11-19 06:35:10,087 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:35:10,087 INFO L195 NwaCegarLoop]: trace histogram [14, 11, 11, 11, 11, 11, 11, 11, 10, 10, 4, 4, 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] [2022-11-19 06:35:10,087 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-19 06:35:10,087 INFO L420 AbstractCegarLoop]: === Iteration 15 === 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)] === [2022-11-19 06:35:10,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:35:10,088 INFO L85 PathProgramCache]: Analyzing trace with hash 122365855, now seen corresponding path program 1 times [2022-11-19 06:35:10,088 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:35:10,089 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [433852805] [2022-11-19 06:35:10,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:35:10,089 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:35:10,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:35:10,745 INFO L134 CoverageAnalysis]: Checked inductivity of 734 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 714 trivial. 0 not checked. [2022-11-19 06:35:10,746 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:35:10,746 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [433852805] [2022-11-19 06:35:10,746 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [433852805] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:35:10,746 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:35:10,747 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-19 06:35:10,747 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [613146898] [2022-11-19 06:35:10,747 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:35:10,748 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 06:35:10,748 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:35:10,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 06:35:10,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-19 06:35:10,749 INFO L87 Difference]: Start difference. First operand 8732 states and 11994 transitions. Second operand has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (33), 3 states have call predecessors, (33), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2022-11-19 06:35:17,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:35:17,147 INFO L93 Difference]: Finished difference Result 8738 states and 11999 transitions. [2022-11-19 06:35:17,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-19 06:35:17,148 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (33), 3 states have call predecessors, (33), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) Word has length 223 [2022-11-19 06:35:17,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:35:17,177 INFO L225 Difference]: With dead ends: 8738 [2022-11-19 06:35:17,177 INFO L226 Difference]: Without dead ends: 8736 [2022-11-19 06:35:17,182 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-19 06:35:17,183 INFO L413 NwaCegarLoop]: 1751 mSDtfsCounter, 1960 mSDsluCounter, 3482 mSDsCounter, 0 mSdLazyCounter, 815 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1962 SdHoareTripleChecker+Valid, 5233 SdHoareTripleChecker+Invalid, 816 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 815 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2022-11-19 06:35:17,184 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1962 Valid, 5233 Invalid, 816 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 815 Invalid, 0 Unknown, 0 Unchecked, 5.6s Time] [2022-11-19 06:35:17,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8736 states. [2022-11-19 06:35:18,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8736 to 8736. [2022-11-19 06:35:18,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8736 states, 5025 states have (on average 1.250547263681592) internal successors, (6284), 5186 states have internal predecessors, (6284), 2850 states have call successors, (2850), 867 states have call predecessors, (2850), 858 states have return successors, (2863), 2790 states have call predecessors, (2863), 2846 states have call successors, (2863) [2022-11-19 06:35:18,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8736 states to 8736 states and 11997 transitions. [2022-11-19 06:35:18,046 INFO L78 Accepts]: Start accepts. Automaton has 8736 states and 11997 transitions. Word has length 223 [2022-11-19 06:35:18,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:35:18,047 INFO L495 AbstractCegarLoop]: Abstraction has 8736 states and 11997 transitions. [2022-11-19 06:35:18,047 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (33), 3 states have call predecessors, (33), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2022-11-19 06:35:18,047 INFO L276 IsEmpty]: Start isEmpty. Operand 8736 states and 11997 transitions. [2022-11-19 06:35:18,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2022-11-19 06:35:18,054 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:35:18,054 INFO L195 NwaCegarLoop]: trace histogram [14, 12, 11, 11, 11, 11, 11, 11, 11, 11, 4, 4, 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] [2022-11-19 06:35:18,054 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-19 06:35:18,055 INFO L420 AbstractCegarLoop]: === Iteration 16 === 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)] === [2022-11-19 06:35:18,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:35:18,055 INFO L85 PathProgramCache]: Analyzing trace with hash -2076412172, now seen corresponding path program 1 times [2022-11-19 06:35:18,055 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:35:18,055 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1069396564] [2022-11-19 06:35:18,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:35:18,056 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:35:18,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:35:18,675 INFO L134 CoverageAnalysis]: Checked inductivity of 777 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 755 trivial. 0 not checked. [2022-11-19 06:35:18,676 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:35:18,676 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1069396564] [2022-11-19 06:35:18,679 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1069396564] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:35:18,679 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:35:18,679 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-19 06:35:18,679 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [874317331] [2022-11-19 06:35:18,680 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:35:18,680 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 06:35:18,680 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:35:18,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 06:35:18,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-19 06:35:18,681 INFO L87 Difference]: Start difference. First operand 8736 states and 11997 transitions. Second operand has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (34), 3 states have call predecessors, (34), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2022-11-19 06:35:26,281 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.71s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:35:26,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:35:26,742 INFO L93 Difference]: Finished difference Result 8742 states and 12002 transitions. [2022-11-19 06:35:26,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-19 06:35:26,742 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (34), 3 states have call predecessors, (34), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) Word has length 229 [2022-11-19 06:35:26,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:35:26,781 INFO L225 Difference]: With dead ends: 8742 [2022-11-19 06:35:26,781 INFO L226 Difference]: Without dead ends: 8738 [2022-11-19 06:35:26,788 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-19 06:35:26,789 INFO L413 NwaCegarLoop]: 1751 mSDtfsCounter, 1960 mSDsluCounter, 3482 mSDsCounter, 0 mSdLazyCounter, 815 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1961 SdHoareTripleChecker+Valid, 5233 SdHoareTripleChecker+Invalid, 816 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 815 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.2s IncrementalHoareTripleChecker+Time [2022-11-19 06:35:26,789 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1961 Valid, 5233 Invalid, 816 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 815 Invalid, 0 Unknown, 0 Unchecked, 7.2s Time] [2022-11-19 06:35:26,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8738 states. [2022-11-19 06:35:27,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8738 to 8738. [2022-11-19 06:35:27,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8738 states, 5027 states have (on average 1.2502486572508453) internal successors, (6285), 5187 states have internal predecessors, (6285), 2850 states have call successors, (2850), 868 states have call predecessors, (2850), 858 states have return successors, (2863), 2790 states have call predecessors, (2863), 2846 states have call successors, (2863) [2022-11-19 06:35:27,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8738 states to 8738 states and 11998 transitions. [2022-11-19 06:35:27,696 INFO L78 Accepts]: Start accepts. Automaton has 8738 states and 11998 transitions. Word has length 229 [2022-11-19 06:35:27,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:35:27,697 INFO L495 AbstractCegarLoop]: Abstraction has 8738 states and 11998 transitions. [2022-11-19 06:35:27,698 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (34), 3 states have call predecessors, (34), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2022-11-19 06:35:27,698 INFO L276 IsEmpty]: Start isEmpty. Operand 8738 states and 11998 transitions. [2022-11-19 06:35:27,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2022-11-19 06:35:27,704 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:35:27,705 INFO L195 NwaCegarLoop]: trace histogram [16, 12, 12, 12, 12, 12, 12, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 06:35:27,705 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-19 06:35:27,705 INFO L420 AbstractCegarLoop]: === Iteration 17 === 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)] === [2022-11-19 06:35:27,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:35:27,706 INFO L85 PathProgramCache]: Analyzing trace with hash -1934442807, now seen corresponding path program 1 times [2022-11-19 06:35:27,706 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:35:27,706 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1524611919] [2022-11-19 06:35:27,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:35:27,707 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:35:27,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:35:28,094 INFO L134 CoverageAnalysis]: Checked inductivity of 659 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 656 trivial. 0 not checked. [2022-11-19 06:35:28,094 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:35:28,095 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1524611919] [2022-11-19 06:35:28,095 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1524611919] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:35:28,095 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:35:28,095 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 06:35:28,095 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1745969705] [2022-11-19 06:35:28,096 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:35:28,096 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 06:35:28,097 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:35:28,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 06:35:28,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 06:35:28,098 INFO L87 Difference]: Start difference. First operand 8738 states and 11998 transitions. Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 2 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-11-19 06:35:33,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:35:33,185 INFO L93 Difference]: Finished difference Result 17398 states and 23915 transitions. [2022-11-19 06:35:33,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 06:35:33,186 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 2 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 224 [2022-11-19 06:35:33,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:35:33,212 INFO L225 Difference]: With dead ends: 17398 [2022-11-19 06:35:33,213 INFO L226 Difference]: Without dead ends: 8810 [2022-11-19 06:35:33,246 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 06:35:33,246 INFO L413 NwaCegarLoop]: 1747 mSDtfsCounter, 12 mSDsluCounter, 1743 mSDsCounter, 0 mSdLazyCounter, 543 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 3490 SdHoareTripleChecker+Invalid, 543 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 543 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2022-11-19 06:35:33,247 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 3490 Invalid, 543 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 543 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2022-11-19 06:35:33,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8810 states. [2022-11-19 06:35:34,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8810 to 8746. [2022-11-19 06:35:34,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8746 states, 5035 states have (on average 1.2498510427010923) internal successors, (6293), 5195 states have internal predecessors, (6293), 2850 states have call successors, (2850), 868 states have call predecessors, (2850), 858 states have return successors, (2863), 2790 states have call predecessors, (2863), 2846 states have call successors, (2863) [2022-11-19 06:35:34,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8746 states to 8746 states and 12006 transitions. [2022-11-19 06:35:34,119 INFO L78 Accepts]: Start accepts. Automaton has 8746 states and 12006 transitions. Word has length 224 [2022-11-19 06:35:34,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:35:34,120 INFO L495 AbstractCegarLoop]: Abstraction has 8746 states and 12006 transitions. [2022-11-19 06:35:34,120 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 2 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-11-19 06:35:34,120 INFO L276 IsEmpty]: Start isEmpty. Operand 8746 states and 12006 transitions. [2022-11-19 06:35:34,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2022-11-19 06:35:34,126 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:35:34,127 INFO L195 NwaCegarLoop]: trace histogram [16, 12, 12, 12, 12, 12, 12, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 06:35:34,127 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-19 06:35:34,127 INFO L420 AbstractCegarLoop]: === Iteration 18 === 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)] === [2022-11-19 06:35:34,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:35:34,128 INFO L85 PathProgramCache]: Analyzing trace with hash 320889598, now seen corresponding path program 1 times [2022-11-19 06:35:34,128 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:35:34,129 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [187774265] [2022-11-19 06:35:34,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:35:34,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:35:34,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:35:34,623 INFO L134 CoverageAnalysis]: Checked inductivity of 660 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 656 trivial. 0 not checked. [2022-11-19 06:35:34,623 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:35:34,623 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [187774265] [2022-11-19 06:35:34,624 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [187774265] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 06:35:34,624 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1945324787] [2022-11-19 06:35:34,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:35:34,624 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 06:35:34,625 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbcde1a6-03e2-4613-9780-51daa8fe0087/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 06:35:34,631 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbcde1a6-03e2-4613-9780-51daa8fe0087/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 06:35:34,669 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbcde1a6-03e2-4613-9780-51daa8fe0087/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-19 06:35:36,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:35:36,158 INFO L263 TraceCheckSpWp]: Trace formula consists of 3782 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-19 06:35:36,173 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 06:35:36,309 INFO L134 CoverageAnalysis]: Checked inductivity of 660 backedges. 68 proven. 0 refuted. 0 times theorem prover too weak. 592 trivial. 0 not checked. [2022-11-19 06:35:36,310 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 06:35:36,310 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1945324787] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:35:36,310 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-19 06:35:36,311 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2022-11-19 06:35:36,311 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [910598122] [2022-11-19 06:35:36,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:35:36,312 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 06:35:36,312 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:35:36,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 06:35:36,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-19 06:35:36,314 INFO L87 Difference]: Start difference. First operand 8746 states and 12006 transitions. Second operand has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 3 states have call successors, (32), 3 states have call predecessors, (32), 3 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) [2022-11-19 06:35:39,964 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:35:43,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:35:43,796 INFO L93 Difference]: Finished difference Result 20283 states and 27820 transitions. [2022-11-19 06:35:43,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 06:35:43,796 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 3 states have call successors, (32), 3 states have call predecessors, (32), 3 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) Word has length 230 [2022-11-19 06:35:43,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:35:43,833 INFO L225 Difference]: With dead ends: 20283 [2022-11-19 06:35:43,833 INFO L226 Difference]: Without dead ends: 11687 [2022-11-19 06:35:43,857 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 233 GetRequests, 230 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-19 06:35:43,858 INFO L413 NwaCegarLoop]: 2637 mSDtfsCounter, 1250 mSDsluCounter, 1703 mSDsCounter, 0 mSdLazyCounter, 702 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1250 SdHoareTripleChecker+Valid, 4340 SdHoareTripleChecker+Invalid, 720 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 702 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2022-11-19 06:35:43,858 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1250 Valid, 4340 Invalid, 720 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 702 Invalid, 0 Unknown, 0 Unchecked, 6.3s Time] [2022-11-19 06:35:43,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11687 states. [2022-11-19 06:35:44,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11687 to 11609. [2022-11-19 06:35:44,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11609 states, 6692 states have (on average 1.2517931858936042) internal successors, (8377), 6908 states have internal predecessors, (8377), 3751 states have call successors, (3751), 1177 states have call predecessors, (3751), 1163 states have return successors, (3764), 3669 states have call predecessors, (3764), 3747 states have call successors, (3764) [2022-11-19 06:35:44,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11609 states to 11609 states and 15892 transitions. [2022-11-19 06:35:44,950 INFO L78 Accepts]: Start accepts. Automaton has 11609 states and 15892 transitions. Word has length 230 [2022-11-19 06:35:44,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:35:44,951 INFO L495 AbstractCegarLoop]: Abstraction has 11609 states and 15892 transitions. [2022-11-19 06:35:44,952 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 3 states have call successors, (32), 3 states have call predecessors, (32), 3 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) [2022-11-19 06:35:44,952 INFO L276 IsEmpty]: Start isEmpty. Operand 11609 states and 15892 transitions. [2022-11-19 06:35:44,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2022-11-19 06:35:44,956 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:35:44,957 INFO L195 NwaCegarLoop]: trace histogram [14, 13, 12, 12, 11, 11, 11, 11, 11, 11, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 06:35:44,981 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbcde1a6-03e2-4613-9780-51daa8fe0087/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-19 06:35:45,173 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbcde1a6-03e2-4613-9780-51daa8fe0087/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2022-11-19 06:35:45,174 INFO L420 AbstractCegarLoop]: === Iteration 19 === 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)] === [2022-11-19 06:35:45,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:35:45,174 INFO L85 PathProgramCache]: Analyzing trace with hash -466947741, now seen corresponding path program 1 times [2022-11-19 06:35:45,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:35:45,174 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1940890869] [2022-11-19 06:35:45,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:35:45,175 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:35:45,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:35:45,782 INFO L134 CoverageAnalysis]: Checked inductivity of 818 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 794 trivial. 0 not checked. [2022-11-19 06:35:45,782 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:35:45,783 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1940890869] [2022-11-19 06:35:45,783 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1940890869] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:35:45,783 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:35:45,783 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-19 06:35:45,784 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1361259865] [2022-11-19 06:35:45,784 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:35:45,785 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 06:35:45,786 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:35:45,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 06:35:45,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-19 06:35:45,787 INFO L87 Difference]: Start difference. First operand 11609 states and 15892 transitions. Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (33), 3 states have call predecessors, (33), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2022-11-19 06:35:51,883 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.66s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:35:53,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:35:53,372 INFO L93 Difference]: Finished difference Result 11609 states and 15892 transitions. [2022-11-19 06:35:53,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-19 06:35:53,372 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (33), 3 states have call predecessors, (33), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) Word has length 228 [2022-11-19 06:35:53,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:35:53,407 INFO L225 Difference]: With dead ends: 11609 [2022-11-19 06:35:53,407 INFO L226 Difference]: Without dead ends: 11429 [2022-11-19 06:35:53,414 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-19 06:35:53,414 INFO L413 NwaCegarLoop]: 1749 mSDtfsCounter, 1957 mSDsluCounter, 3481 mSDsCounter, 0 mSdLazyCounter, 810 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1957 SdHoareTripleChecker+Valid, 5230 SdHoareTripleChecker+Invalid, 811 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 810 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2022-11-19 06:35:53,415 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1957 Valid, 5230 Invalid, 811 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 810 Invalid, 0 Unknown, 0 Unchecked, 6.3s Time] [2022-11-19 06:35:53,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11429 states. [2022-11-19 06:35:54,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11429 to 11429. [2022-11-19 06:35:54,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11429 states, 6625 states have (on average 1.248301886792453) internal successors, (8270), 6801 states have internal predecessors, (8270), 3659 states have call successors, (3659), 1147 states have call predecessors, (3659), 1143 states have return successors, (3676), 3622 states have call predecessors, (3676), 3659 states have call successors, (3676) [2022-11-19 06:35:54,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11429 states to 11429 states and 15605 transitions. [2022-11-19 06:35:54,530 INFO L78 Accepts]: Start accepts. Automaton has 11429 states and 15605 transitions. Word has length 228 [2022-11-19 06:35:54,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:35:54,531 INFO L495 AbstractCegarLoop]: Abstraction has 11429 states and 15605 transitions. [2022-11-19 06:35:54,531 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (33), 3 states have call predecessors, (33), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2022-11-19 06:35:54,531 INFO L276 IsEmpty]: Start isEmpty. Operand 11429 states and 15605 transitions. [2022-11-19 06:35:54,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 304 [2022-11-19 06:35:54,538 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:35:54,538 INFO L195 NwaCegarLoop]: trace histogram [18, 12, 12, 12, 12, 12, 12, 9, 9, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 06:35:54,539 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-19 06:35:54,539 INFO L420 AbstractCegarLoop]: === Iteration 20 === 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)] === [2022-11-19 06:35:54,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:35:54,540 INFO L85 PathProgramCache]: Analyzing trace with hash 1509684972, now seen corresponding path program 1 times [2022-11-19 06:35:54,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:35:54,540 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1493072488] [2022-11-19 06:35:54,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:35:54,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:35:54,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:35:55,013 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 833 trivial. 0 not checked. [2022-11-19 06:35:55,013 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:35:55,013 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1493072488] [2022-11-19 06:35:55,013 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1493072488] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 06:35:55,014 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [659587963] [2022-11-19 06:35:55,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:35:55,014 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 06:35:55,014 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbcde1a6-03e2-4613-9780-51daa8fe0087/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 06:35:55,016 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbcde1a6-03e2-4613-9780-51daa8fe0087/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 06:35:55,046 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbcde1a6-03e2-4613-9780-51daa8fe0087/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-19 06:35:56,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:35:56,565 INFO L263 TraceCheckSpWp]: Trace formula consists of 4194 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-19 06:35:56,577 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 06:35:56,650 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 240 proven. 1 refuted. 0 times theorem prover too weak. 599 trivial. 0 not checked. [2022-11-19 06:35:56,652 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 06:35:56,942 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 833 trivial. 0 not checked. [2022-11-19 06:35:56,942 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [659587963] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 06:35:56,943 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2029655006] [2022-11-19 06:35:56,979 INFO L159 IcfgInterpreter]: Started Sifa with 153 locations of interest [2022-11-19 06:35:56,979 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 06:35:56,985 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 06:35:56,991 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 06:35:56,992 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 06:36:06,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:36:06,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:36:06,871 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:36:06,878 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:36:06,882 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:36:06,887 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:36:06,893 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:36:06,897 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:36:06,901 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:36:06,910 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:36:06,912 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:36:06,915 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:36:06,918 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:36:06,920 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:36:06,923 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:36:06,926 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:36:06,929 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:36:06,931 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:36:06,934 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:36:06,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:36:06,939 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:36:06,942 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:36:06,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:36:06,947 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:36:06,949 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:36:06,952 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:36:06,954 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:36:06,957 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:36:06,959 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:36:06,962 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:36:06,964 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:36:06,966 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:36:06,969 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:36:06,971 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:36:06,973 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:36:06,975 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:36:06,977 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:36:06,980 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:36:06,982 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:36:06,984 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:36:06,986 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:36:06,988 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:36:06,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:36:06,992 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:36:06,994 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:36:06,996 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:36:06,997 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:36:07,001 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:36:07,003 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:36:07,005 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:36:07,007 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:36:07,009 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:36:07,010 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:36:07,012 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:36:07,014 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:36:07,016 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:36:07,018 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:36:07,019 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:36:07,021 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:36:07,025 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:36:07,027 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:36:07,028 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:36:07,030 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:36:07,032 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:36:07,034 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:36:07,036 INFO L217 Elim1Store]: Index analysis took 185 ms [2022-11-19 06:36:07,246 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 59 select indices, 59 select index equivalence classes, 1733 disjoint index pairs (out of 1711 index pairs), introduced 59 new quantified variables, introduced 0 case distinctions, treesize of input 577 treesize of output 759 [2022-11-19 06:36:09,050 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:36:09,053 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:36:09,056 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:36:09,059 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:36:09,063 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:36:09,066 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:36:09,069 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:36:09,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:36:09,075 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:36:09,078 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:36:09,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:36:09,084 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:36:09,087 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:36:09,089 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:36:09,092 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:36:09,095 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:36:09,098 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:36:09,101 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:36:09,104 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:36:09,107 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:36:09,110 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:36:09,113 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:36:09,117 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:36:09,119 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:36:09,123 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:36:09,125 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:36:09,128 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:36:09,131 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:36:09,134 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:36:09,137 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:36:09,140 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:36:09,143 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:36:09,146 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:36:09,149 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:36:09,152 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:36:09,155 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:36:09,158 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:36:09,161 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:36:09,164 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:36:09,167 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:36:09,170 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:36:09,172 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:36:09,175 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:36:09,178 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:36:09,181 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:36:09,184 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:36:09,187 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:36:09,190 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:36:09,193 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:36:09,196 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:36:09,199 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:36:09,201 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:36:09,204 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:36:09,207 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:36:09,210 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:36:09,212 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:36:09,215 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:36:09,218 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:36:09,220 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:36:09,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:36:09,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:36:09,228 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:36:09,231 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:36:09,233 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:36:09,236 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:36:09,238 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:36:09,241 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:36:09,244 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:36:09,246 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:36:09,248 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:36:09,251 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:36:09,253 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:36:09,256 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:36:09,258 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:36:09,261 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:36:09,263 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:36:09,265 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:36:09,268 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:36:09,270 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:36:09,273 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:36:09,275 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:36:09,278 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:36:09,280 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:36:09,282 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:36:09,285 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:36:09,288 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:36:09,290 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:36:09,293 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:36:09,295 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:36:09,298 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:36:09,300 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:36:09,303 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:36:09,305 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:36:09,307 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:36:09,310 INFO L217 Elim1Store]: Index analysis took 263 ms [2022-11-19 06:36:09,896 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 94 select indices, 94 select index equivalence classes, 4465 disjoint index pairs (out of 4371 index pairs), introduced 94 new quantified variables, introduced 0 case distinctions, treesize of input 2673 treesize of output 2390 [2022-11-19 06:36:15,115 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:36:15,118 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:36:15,122 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:36:15,126 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:36:15,130 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:36:15,135 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:36:15,139 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:36:15,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:36:15,146 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:36:15,150 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:36:15,153 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:36:15,157 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:36:15,160 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:36:15,164 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:36:15,167 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:36:15,171 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:36:15,174 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:36:15,178 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:36:15,181 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:36:15,186 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:36:15,190 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:36:15,194 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:36:15,197 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:36:15,201 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:36:15,204 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:36:15,208 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:36:15,211 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:36:15,215 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:36:15,218 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:36:15,221 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:36:15,225 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:36:15,228 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:36:15,232 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:36:15,235 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:36:15,238 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:36:15,242 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:36:15,245 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:36:15,248 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:36:15,252 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:36:15,255 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:36:15,259 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:36:15,262 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:36:15,265 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:36:15,268 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:36:15,271 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:36:15,274 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:36:15,277 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:36:15,280 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:36:15,284 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:36:15,287 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:36:15,290 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:36:15,293 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:36:15,296 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:36:15,299 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:36:15,302 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:36:15,305 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:36:15,308 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:36:15,311 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:36:15,314 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:36:15,319 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:36:15,323 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:36:15,326 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:36:15,328 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:36:15,331 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:36:15,334 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:36:15,337 INFO L217 Elim1Store]: Index analysis took 225 ms [2022-11-19 06:36:15,697 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 59 select indices, 59 select index equivalence classes, 1733 disjoint index pairs (out of 1711 index pairs), introduced 59 new quantified variables, introduced 0 case distinctions, treesize of input 577 treesize of output 759 [2022-11-19 06:43:29,524 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_malloc with input of size 187 for LOIs [2022-11-19 06:43:31,411 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_undef_int with input of size 2145 for LOIs [2022-11-19 06:43:35,373 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_assume with input of size 1950 for LOIs [2022-11-19 06:43:38,519 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-19 06:45:02,841 WARN L233 SmtUtils]: Spent 1.40m on a formula simplification that was a NOOP. DAG size: 3205 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)