./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-media-platform-vsp1-vsp1.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aef121e0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a657b17b-a67d-4036-a049-eedf51c60a96/bin/utaipan-EQgc7hIp5V/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a657b17b-a67d-4036-a049-eedf51c60a96/bin/utaipan-EQgc7hIp5V/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a657b17b-a67d-4036-a049-eedf51c60a96/bin/utaipan-EQgc7hIp5V/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a657b17b-a67d-4036-a049-eedf51c60a96/bin/utaipan-EQgc7hIp5V/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-platform-vsp1-vsp1.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a657b17b-a67d-4036-a049-eedf51c60a96/bin/utaipan-EQgc7hIp5V/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a657b17b-a67d-4036-a049-eedf51c60a96/bin/utaipan-EQgc7hIp5V --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 8ac7ef6163593244979442da2bd08044f9730d00931e1e4e35783fd5a897b362 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-23 03:30:09,025 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 03:30:09,028 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 03:30:09,090 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 03:30:09,091 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 03:30:09,095 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 03:30:09,098 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 03:30:09,102 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 03:30:09,105 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 03:30:09,112 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 03:30:09,113 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 03:30:09,115 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 03:30:09,116 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 03:30:09,119 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 03:30:09,121 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 03:30:09,126 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 03:30:09,128 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 03:30:09,129 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 03:30:09,132 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 03:30:09,141 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 03:30:09,143 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 03:30:09,145 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 03:30:09,148 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 03:30:09,149 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 03:30:09,159 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 03:30:09,160 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 03:30:09,160 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 03:30:09,162 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 03:30:09,163 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 03:30:09,165 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 03:30:09,165 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 03:30:09,166 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 03:30:09,169 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 03:30:09,170 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 03:30:09,172 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 03:30:09,172 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 03:30:09,173 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 03:30:09,173 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 03:30:09,174 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 03:30:09,175 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 03:30:09,175 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 03:30:09,176 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a657b17b-a67d-4036-a049-eedf51c60a96/bin/utaipan-EQgc7hIp5V/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-23 03:30:09,227 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 03:30:09,227 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 03:30:09,228 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 03:30:09,229 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 03:30:09,236 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 03:30:09,236 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 03:30:09,237 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 03:30:09,237 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 03:30:09,237 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 03:30:09,237 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-23 03:30:09,238 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 03:30:09,239 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 03:30:09,239 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-23 03:30:09,239 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-23 03:30:09,240 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 03:30:09,240 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-23 03:30:09,240 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-23 03:30:09,240 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-23 03:30:09,241 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 03:30:09,241 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 03:30:09,242 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 03:30:09,242 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 03:30:09,242 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 03:30:09,242 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 03:30:09,243 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 03:30:09,243 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 03:30:09,245 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 03:30:09,245 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 03:30:09,245 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 03:30:09,245 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 03:30:09,246 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 03:30:09,246 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 03:30:09,247 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 03:30:09,247 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-23 03:30:09,247 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 03:30:09,247 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 03:30:09,247 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 03:30:09,248 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 03:30:09,248 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a657b17b-a67d-4036-a049-eedf51c60a96/bin/utaipan-EQgc7hIp5V/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a657b17b-a67d-4036-a049-eedf51c60a96/bin/utaipan-EQgc7hIp5V Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8ac7ef6163593244979442da2bd08044f9730d00931e1e4e35783fd5a897b362 [2021-11-23 03:30:09,583 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 03:30:09,617 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 03:30:09,620 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 03:30:09,622 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 03:30:09,623 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 03:30:09,625 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a657b17b-a67d-4036-a049-eedf51c60a96/bin/utaipan-EQgc7hIp5V/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-platform-vsp1-vsp1.cil.i [2021-11-23 03:30:09,734 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a657b17b-a67d-4036-a049-eedf51c60a96/bin/utaipan-EQgc7hIp5V/data/f08fc56fa/b18a90b4fada4c1a9f1d60f2795e114d/FLAG4cb587c9b [2021-11-23 03:30:10,928 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 03:30:10,929 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a657b17b-a67d-4036-a049-eedf51c60a96/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-platform-vsp1-vsp1.cil.i [2021-11-23 03:30:11,025 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a657b17b-a67d-4036-a049-eedf51c60a96/bin/utaipan-EQgc7hIp5V/data/f08fc56fa/b18a90b4fada4c1a9f1d60f2795e114d/FLAG4cb587c9b [2021-11-23 03:30:11,112 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a657b17b-a67d-4036-a049-eedf51c60a96/bin/utaipan-EQgc7hIp5V/data/f08fc56fa/b18a90b4fada4c1a9f1d60f2795e114d [2021-11-23 03:30:11,115 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 03:30:11,118 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 03:30:11,122 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 03:30:11,122 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 03:30:11,126 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 03:30:11,127 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:30:11" (1/1) ... [2021-11-23 03:30:11,129 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3203b02e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:30:11, skipping insertion in model container [2021-11-23 03:30:11,129 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:30:11" (1/1) ... [2021-11-23 03:30:11,137 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 03:30:11,403 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 03:30:17,581 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a657b17b-a67d-4036-a049-eedf51c60a96/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-platform-vsp1-vsp1.cil.i[588330,588343] [2021-11-23 03:30:17,584 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a657b17b-a67d-4036-a049-eedf51c60a96/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-platform-vsp1-vsp1.cil.i[588499,588512] [2021-11-23 03:30:17,585 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a657b17b-a67d-4036-a049-eedf51c60a96/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-platform-vsp1-vsp1.cil.i[588666,588679] [2021-11-23 03:30:17,586 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a657b17b-a67d-4036-a049-eedf51c60a96/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-platform-vsp1-vsp1.cil.i[588834,588847] [2021-11-23 03:30:17,611 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 03:30:17,733 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 03:30:18,480 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a657b17b-a67d-4036-a049-eedf51c60a96/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-platform-vsp1-vsp1.cil.i[588330,588343] [2021-11-23 03:30:18,481 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a657b17b-a67d-4036-a049-eedf51c60a96/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-platform-vsp1-vsp1.cil.i[588499,588512] [2021-11-23 03:30:18,481 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a657b17b-a67d-4036-a049-eedf51c60a96/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-platform-vsp1-vsp1.cil.i[588666,588679] [2021-11-23 03:30:18,482 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a657b17b-a67d-4036-a049-eedf51c60a96/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-platform-vsp1-vsp1.cil.i[588834,588847] [2021-11-23 03:30:18,494 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 03:30:18,958 INFO L208 MainTranslator]: Completed translation [2021-11-23 03:30:18,959 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:30:18 WrapperNode [2021-11-23 03:30:18,959 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 03:30:18,960 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 03:30:18,960 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 03:30:18,961 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 03:30:18,969 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:30:18" (1/1) ... [2021-11-23 03:30:19,232 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:30:18" (1/1) ... [2021-11-23 03:30:19,622 INFO L137 Inliner]: procedures = 710, calls = 4743, calls flagged for inlining = 342, calls inlined = 329, statements flattened = 9439 [2021-11-23 03:30:19,623 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 03:30:19,623 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 03:30:19,624 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 03:30:19,624 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 03:30:19,634 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:30:18" (1/1) ... [2021-11-23 03:30:19,634 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:30:18" (1/1) ... [2021-11-23 03:30:19,708 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:30:18" (1/1) ... [2021-11-23 03:30:19,709 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:30:18" (1/1) ... [2021-11-23 03:30:20,081 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:30:18" (1/1) ... [2021-11-23 03:30:20,126 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:30:18" (1/1) ... [2021-11-23 03:30:20,222 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:30:18" (1/1) ... [2021-11-23 03:30:20,308 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 03:30:20,310 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 03:30:20,310 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 03:30:20,310 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 03:30:20,311 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:30:18" (1/1) ... [2021-11-23 03:30:20,322 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 03:30:20,338 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a657b17b-a67d-4036-a049-eedf51c60a96/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 03:30:20,357 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a657b17b-a67d-4036-a049-eedf51c60a96/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 03:30:20,375 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a657b17b-a67d-4036-a049-eedf51c60a96/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 03:30:20,414 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_destroy_entities [2021-11-23 03:30:20,414 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_destroy_entities [2021-11-23 03:30:20,415 INFO L130 BoogieDeclarations]: Found specification of procedure lif_s_stream [2021-11-23 03:30:20,415 INFO L138 BoogieDeclarations]: Found implementation of procedure lif_s_stream [2021-11-23 03:30:20,415 INFO L130 BoogieDeclarations]: Found specification of procedure uds_enum_mbus_code [2021-11-23 03:30:20,415 INFO L138 BoogieDeclarations]: Found implementation of procedure uds_enum_mbus_code [2021-11-23 03:30:20,415 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-23 03:30:20,416 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-23 03:30:20,416 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_irqlock_of_vsp1_video [2021-11-23 03:30:20,416 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_irqlock_of_vsp1_video [2021-11-23 03:30:20,416 INFO L130 BoogieDeclarations]: Found specification of procedure vb2_ioctl_prepare_buf [2021-11-23 03:30:20,416 INFO L138 BoogieDeclarations]: Found implementation of procedure vb2_ioctl_prepare_buf [2021-11-23 03:30:20,416 INFO L130 BoogieDeclarations]: Found specification of procedure vb2_ioctl_dqbuf [2021-11-23 03:30:20,417 INFO L138 BoogieDeclarations]: Found implementation of procedure vb2_ioctl_dqbuf [2021-11-23 03:30:20,417 INFO L130 BoogieDeclarations]: Found specification of procedure hsit_get_format [2021-11-23 03:30:20,417 INFO L138 BoogieDeclarations]: Found implementation of procedure hsit_get_format [2021-11-23 03:30:20,417 INFO L130 BoogieDeclarations]: Found specification of procedure sru_enum_frame_size [2021-11-23 03:30:20,417 INFO L138 BoogieDeclarations]: Found implementation of procedure sru_enum_frame_size [2021-11-23 03:30:20,418 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-23 03:30:20,418 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-23 03:30:20,418 INFO L130 BoogieDeclarations]: Found specification of procedure to_uds [2021-11-23 03:30:20,418 INFO L138 BoogieDeclarations]: Found implementation of procedure to_uds [2021-11-23 03:30:20,418 INFO L130 BoogieDeclarations]: Found specification of procedure to_vsp1_video [2021-11-23 03:30:20,418 INFO L138 BoogieDeclarations]: Found implementation of procedure to_vsp1_video [2021-11-23 03:30:20,419 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_video_buffer_prepare [2021-11-23 03:30:20,419 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_video_buffer_prepare [2021-11-23 03:30:20,419 INFO L130 BoogieDeclarations]: Found specification of procedure media_entity_remote_pad [2021-11-23 03:30:20,419 INFO L138 BoogieDeclarations]: Found implementation of procedure media_entity_remote_pad [2021-11-23 03:30:20,420 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-11-23 03:30:20,420 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-11-23 03:30:20,420 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~int [2021-11-23 03:30:20,420 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~int [2021-11-23 03:30:20,420 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_entity_init_formats [2021-11-23 03:30:20,420 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_entity_init_formats [2021-11-23 03:30:20,421 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_entity_init [2021-11-23 03:30:20,421 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_entity_init [2021-11-23 03:30:20,421 INFO L130 BoogieDeclarations]: Found specification of procedure uds_try_format [2021-11-23 03:30:20,421 INFO L138 BoogieDeclarations]: Found implementation of procedure uds_try_format [2021-11-23 03:30:20,422 INFO L130 BoogieDeclarations]: Found specification of procedure uds_enum_frame_size [2021-11-23 03:30:20,422 INFO L138 BoogieDeclarations]: Found implementation of procedure uds_enum_frame_size [2021-11-23 03:30:20,422 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-11-23 03:30:20,423 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-11-23 03:30:20,423 INFO L130 BoogieDeclarations]: Found specification of procedure to_lut [2021-11-23 03:30:20,423 INFO L138 BoogieDeclarations]: Found implementation of procedure to_lut [2021-11-23 03:30:20,424 INFO L130 BoogieDeclarations]: Found specification of procedure sru_enum_mbus_code [2021-11-23 03:30:20,425 INFO L138 BoogieDeclarations]: Found implementation of procedure sru_enum_mbus_code [2021-11-23 03:30:20,425 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_51 [2021-11-23 03:30:20,426 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_51 [2021-11-23 03:30:20,426 INFO L130 BoogieDeclarations]: Found specification of procedure lut_get_format [2021-11-23 03:30:20,426 INFO L138 BoogieDeclarations]: Found implementation of procedure lut_get_format [2021-11-23 03:30:20,426 INFO L130 BoogieDeclarations]: Found specification of procedure sru_get_format [2021-11-23 03:30:20,427 INFO L138 BoogieDeclarations]: Found implementation of procedure sru_get_format [2021-11-23 03:30:20,427 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_53 [2021-11-23 03:30:20,427 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_53 [2021-11-23 03:30:20,428 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_read [2021-11-23 03:30:20,428 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_read [2021-11-23 03:30:20,428 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_irq_handler [2021-11-23 03:30:20,428 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_irq_handler [2021-11-23 03:30:20,428 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_rwpf_enum_frame_size [2021-11-23 03:30:20,429 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_rwpf_enum_frame_size [2021-11-23 03:30:20,429 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_video_frame_end [2021-11-23 03:30:20,429 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_video_frame_end [2021-11-23 03:30:20,429 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-23 03:30:20,429 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-23 03:30:20,429 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2021-11-23 03:30:20,429 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2021-11-23 03:30:20,430 INFO L130 BoogieDeclarations]: Found specification of procedure vb2_dma_contig_cleanup_ctx [2021-11-23 03:30:20,430 INFO L138 BoogieDeclarations]: Found implementation of procedure vb2_dma_contig_cleanup_ctx [2021-11-23 03:30:20,431 INFO L130 BoogieDeclarations]: Found specification of procedure wpf_s_stream [2021-11-23 03:30:20,431 INFO L138 BoogieDeclarations]: Found implementation of procedure wpf_s_stream [2021-11-23 03:30:20,431 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-23 03:30:20,431 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-23 03:30:20,431 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_rwpf_get_selection [2021-11-23 03:30:20,431 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_rwpf_get_selection [2021-11-23 03:30:20,432 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-11-23 03:30:20,432 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-11-23 03:30:20,432 INFO L130 BoogieDeclarations]: Found specification of procedure uds_s_stream [2021-11-23 03:30:20,433 INFO L138 BoogieDeclarations]: Found implementation of procedure uds_s_stream [2021-11-23 03:30:20,433 INFO L130 BoogieDeclarations]: Found specification of procedure platform_get_resource [2021-11-23 03:30:20,433 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_get_resource [2021-11-23 03:30:20,433 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_uds_write [2021-11-23 03:30:20,433 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_uds_write [2021-11-23 03:30:20,433 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 03:30:20,434 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_pipeline_cleanup [2021-11-23 03:30:20,434 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_pipeline_cleanup [2021-11-23 03:30:20,435 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2021-11-23 03:30:20,435 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2021-11-23 03:30:20,436 INFO L130 BoogieDeclarations]: Found specification of procedure clk_unprepare [2021-11-23 03:30:20,436 INFO L138 BoogieDeclarations]: Found implementation of procedure clk_unprepare [2021-11-23 03:30:20,436 INFO L130 BoogieDeclarations]: Found specification of procedure sru_s_stream [2021-11-23 03:30:20,436 INFO L138 BoogieDeclarations]: Found implementation of procedure sru_s_stream [2021-11-23 03:30:20,436 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2021-11-23 03:30:20,436 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2021-11-23 03:30:20,437 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_rwpf_get_format [2021-11-23 03:30:20,437 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_rwpf_get_format [2021-11-23 03:30:20,437 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~int [2021-11-23 03:30:20,437 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~int [2021-11-23 03:30:20,437 INFO L130 BoogieDeclarations]: Found specification of procedure vb2_ioctl_reqbufs [2021-11-23 03:30:20,437 INFO L138 BoogieDeclarations]: Found implementation of procedure vb2_ioctl_reqbufs [2021-11-23 03:30:20,438 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_is_locked [2021-11-23 03:30:20,438 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_is_locked [2021-11-23 03:30:20,438 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-23 03:30:20,438 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-23 03:30:20,438 INFO L130 BoogieDeclarations]: Found specification of procedure to_rwpf [2021-11-23 03:30:20,439 INFO L138 BoogieDeclarations]: Found implementation of procedure to_rwpf [2021-11-23 03:30:20,440 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_get_format_info [2021-11-23 03:30:20,442 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_get_format_info [2021-11-23 03:30:20,443 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-23 03:30:20,443 INFO L130 BoogieDeclarations]: Found specification of procedure hsit_enum_mbus_code [2021-11-23 03:30:20,443 INFO L138 BoogieDeclarations]: Found implementation of procedure hsit_enum_mbus_code [2021-11-23 03:30:20,443 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2021-11-23 03:30:20,444 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2021-11-23 03:30:20,444 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-11-23 03:30:20,444 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-11-23 03:30:20,444 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2021-11-23 03:30:20,451 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2021-11-23 03:30:20,451 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_pipeline_ready [2021-11-23 03:30:20,451 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_pipeline_ready [2021-11-23 03:30:20,451 INFO L130 BoogieDeclarations]: Found specification of procedure sru_s_ctrl [2021-11-23 03:30:20,452 INFO L138 BoogieDeclarations]: Found implementation of procedure sru_s_ctrl [2021-11-23 03:30:20,452 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_rwpf_set_selection [2021-11-23 03:30:20,452 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_rwpf_set_selection [2021-11-23 03:30:20,452 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_hsit_write [2021-11-23 03:30:20,452 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_hsit_write [2021-11-23 03:30:20,452 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_video_set_format [2021-11-23 03:30:20,452 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_video_set_format [2021-11-23 03:30:20,452 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2021-11-23 03:30:20,452 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2021-11-23 03:30:20,453 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-23 03:30:20,453 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2021-11-23 03:30:20,453 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2021-11-23 03:30:20,453 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2021-11-23 03:30:20,453 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2021-11-23 03:30:20,453 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_3 [2021-11-23 03:30:20,453 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_3 [2021-11-23 03:30:20,454 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_5 [2021-11-23 03:30:20,454 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_5 [2021-11-23 03:30:20,454 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_4 [2021-11-23 03:30:20,454 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_4 [2021-11-23 03:30:20,454 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_7 [2021-11-23 03:30:20,454 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_7 [2021-11-23 03:30:20,454 INFO L130 BoogieDeclarations]: Found specification of procedure lif_enum_frame_size [2021-11-23 03:30:20,455 INFO L138 BoogieDeclarations]: Found implementation of procedure lif_enum_frame_size [2021-11-23 03:30:20,455 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_6 [2021-11-23 03:30:20,455 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_6 [2021-11-23 03:30:20,455 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 03:30:20,455 INFO L130 BoogieDeclarations]: Found specification of procedure sru_set_format [2021-11-23 03:30:20,455 INFO L138 BoogieDeclarations]: Found implementation of procedure sru_set_format [2021-11-23 03:30:20,455 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-23 03:30:20,456 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-23 03:30:20,456 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-23 03:30:20,456 INFO L130 BoogieDeclarations]: Found specification of procedure to_hsit [2021-11-23 03:30:20,456 INFO L138 BoogieDeclarations]: Found implementation of procedure to_hsit [2021-11-23 03:30:20,456 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_write [2021-11-23 03:30:20,456 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_write [2021-11-23 03:30:20,456 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-23 03:30:20,456 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-23 03:30:20,457 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_video_start_streaming [2021-11-23 03:30:20,457 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_video_start_streaming [2021-11-23 03:30:20,457 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-11-23 03:30:20,457 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-11-23 03:30:20,457 INFO L130 BoogieDeclarations]: Found specification of procedure video_get_drvdata___1 [2021-11-23 03:30:20,457 INFO L138 BoogieDeclarations]: Found implementation of procedure video_get_drvdata___1 [2021-11-23 03:30:20,457 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_video_get_format [2021-11-23 03:30:20,457 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_video_get_format [2021-11-23 03:30:20,458 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_irqlock_of_vsp1_pipeline [2021-11-23 03:30:20,458 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_irqlock_of_vsp1_pipeline [2021-11-23 03:30:20,458 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_video_open [2021-11-23 03:30:20,458 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_video_open [2021-11-23 03:30:20,458 INFO L130 BoogieDeclarations]: Found specification of procedure to_vsp1_video_buffer [2021-11-23 03:30:20,458 INFO L138 BoogieDeclarations]: Found implementation of procedure to_vsp1_video_buffer [2021-11-23 03:30:20,458 INFO L130 BoogieDeclarations]: Found specification of procedure to_vsp1_pipeline [2021-11-23 03:30:20,459 INFO L138 BoogieDeclarations]: Found implementation of procedure to_vsp1_pipeline [2021-11-23 03:30:20,459 INFO L130 BoogieDeclarations]: Found specification of procedure rpf_vdev_queue [2021-11-23 03:30:20,459 INFO L138 BoogieDeclarations]: Found implementation of procedure rpf_vdev_queue [2021-11-23 03:30:20,459 INFO L130 BoogieDeclarations]: Found specification of procedure media_entity_type [2021-11-23 03:30:20,459 INFO L138 BoogieDeclarations]: Found implementation of procedure media_entity_type [2021-11-23 03:30:20,459 INFO L130 BoogieDeclarations]: Found specification of procedure devm_kzalloc [2021-11-23 03:30:20,459 INFO L138 BoogieDeclarations]: Found implementation of procedure devm_kzalloc [2021-11-23 03:30:20,460 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2021-11-23 03:30:20,460 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2021-11-23 03:30:20,460 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-11-23 03:30:20,460 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-11-23 03:30:20,460 INFO L130 BoogieDeclarations]: Found specification of procedure dev_name [2021-11-23 03:30:20,460 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_name [2021-11-23 03:30:20,460 INFO L130 BoogieDeclarations]: Found specification of procedure sru_try_format [2021-11-23 03:30:20,461 INFO L138 BoogieDeclarations]: Found implementation of procedure sru_try_format [2021-11-23 03:30:20,461 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 03:30:20,461 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 03:30:20,461 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_pm_suspend [2021-11-23 03:30:20,461 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_pm_suspend [2021-11-23 03:30:20,461 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2021-11-23 03:30:20,461 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2021-11-23 03:30:20,462 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_clocks_enable [2021-11-23 03:30:20,462 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_clocks_enable [2021-11-23 03:30:20,462 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_video_try_format [2021-11-23 03:30:20,462 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_video_try_format [2021-11-23 03:30:20,462 INFO L130 BoogieDeclarations]: Found specification of procedure to_sru [2021-11-23 03:30:20,462 INFO L138 BoogieDeclarations]: Found implementation of procedure to_sru [2021-11-23 03:30:20,462 INFO L130 BoogieDeclarations]: Found specification of procedure uds_output_size [2021-11-23 03:30:20,463 INFO L138 BoogieDeclarations]: Found implementation of procedure uds_output_size [2021-11-23 03:30:20,463 INFO L130 BoogieDeclarations]: Found specification of procedure vb2_ops_wait_finish [2021-11-23 03:30:20,463 INFO L138 BoogieDeclarations]: Found implementation of procedure vb2_ops_wait_finish [2021-11-23 03:30:20,463 INFO L130 BoogieDeclarations]: Found specification of procedure lut_s_stream [2021-11-23 03:30:20,463 INFO L138 BoogieDeclarations]: Found implementation of procedure lut_s_stream [2021-11-23 03:30:20,463 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_video_cleanup [2021-11-23 03:30:20,463 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_video_cleanup [2021-11-23 03:30:20,464 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-23 03:30:20,464 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-23 03:30:20,464 INFO L130 BoogieDeclarations]: Found specification of procedure vb2_ioctl_create_bufs [2021-11-23 03:30:20,464 INFO L138 BoogieDeclarations]: Found implementation of procedure vb2_ioctl_create_bufs [2021-11-23 03:30:20,464 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-11-23 03:30:20,464 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-11-23 03:30:20,464 INFO L130 BoogieDeclarations]: Found specification of procedure uds_passband_width [2021-11-23 03:30:20,465 INFO L138 BoogieDeclarations]: Found implementation of procedure uds_passband_width [2021-11-23 03:30:20,465 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_clocks_disable [2021-11-23 03:30:20,465 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_clocks_disable [2021-11-23 03:30:20,465 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_lif_write [2021-11-23 03:30:20,465 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_lif_write [2021-11-23 03:30:20,465 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2021-11-23 03:30:20,465 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2021-11-23 03:30:20,465 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_entity_get_pad_format [2021-11-23 03:30:20,466 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_entity_get_pad_format [2021-11-23 03:30:20,466 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_subdev_init [2021-11-23 03:30:20,466 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_subdev_init [2021-11-23 03:30:20,579 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-11-23 03:30:20,579 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-11-23 03:30:20,579 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-23 03:30:20,580 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-23 03:30:20,580 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_sru_write [2021-11-23 03:30:20,580 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_sru_write [2021-11-23 03:30:20,580 INFO L130 BoogieDeclarations]: Found specification of procedure hsit_set_format [2021-11-23 03:30:20,580 INFO L138 BoogieDeclarations]: Found implementation of procedure hsit_set_format [2021-11-23 03:30:20,580 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_rpf_write [2021-11-23 03:30:20,580 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_rpf_write [2021-11-23 03:30:20,580 INFO L130 BoogieDeclarations]: Found specification of procedure __vsp1_video_try_format [2021-11-23 03:30:20,580 INFO L138 BoogieDeclarations]: Found implementation of procedure __vsp1_video_try_format [2021-11-23 03:30:20,580 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_post_probe [2021-11-23 03:30:20,581 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_post_probe [2021-11-23 03:30:20,581 INFO L130 BoogieDeclarations]: Found specification of procedure media_entity_create_link [2021-11-23 03:30:20,581 INFO L138 BoogieDeclarations]: Found implementation of procedure media_entity_create_link [2021-11-23 03:30:20,581 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2021-11-23 03:30:20,581 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2021-11-23 03:30:20,581 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_video_release [2021-11-23 03:30:20,581 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_video_release [2021-11-23 03:30:20,581 INFO L130 BoogieDeclarations]: Found specification of procedure video_drvdata [2021-11-23 03:30:20,581 INFO L138 BoogieDeclarations]: Found implementation of procedure video_drvdata [2021-11-23 03:30:20,581 INFO L130 BoogieDeclarations]: Found specification of procedure ERR_PTR [2021-11-23 03:30:20,581 INFO L138 BoogieDeclarations]: Found implementation of procedure ERR_PTR [2021-11-23 03:30:20,582 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_remove [2021-11-23 03:30:20,582 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_remove [2021-11-23 03:30:20,582 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_pm_resume [2021-11-23 03:30:20,582 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_pm_resume [2021-11-23 03:30:20,582 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 03:30:20,582 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-11-23 03:30:20,582 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-11-23 03:30:20,582 INFO L130 BoogieDeclarations]: Found specification of procedure uds_output_limits [2021-11-23 03:30:20,582 INFO L138 BoogieDeclarations]: Found implementation of procedure uds_output_limits [2021-11-23 03:30:20,582 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-23 03:30:20,583 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_pipeline_run [2021-11-23 03:30:20,583 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_pipeline_run [2021-11-23 03:30:20,583 INFO L130 BoogieDeclarations]: Found specification of procedure uds_compute_ratio [2021-11-23 03:30:20,583 INFO L138 BoogieDeclarations]: Found implementation of procedure uds_compute_ratio [2021-11-23 03:30:20,583 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_video_stop_streaming [2021-11-23 03:30:20,583 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_video_stop_streaming [2021-11-23 03:30:20,583 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-23 03:30:20,583 INFO L130 BoogieDeclarations]: Found specification of procedure uds_set_format [2021-11-23 03:30:20,583 INFO L138 BoogieDeclarations]: Found implementation of procedure uds_set_format [2021-11-23 03:30:20,583 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_probe [2021-11-23 03:30:20,584 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_probe [2021-11-23 03:30:20,584 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_pre_probe [2021-11-23 03:30:20,584 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_pre_probe [2021-11-23 03:30:20,584 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_hsit_create [2021-11-23 03:30:20,584 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_hsit_create [2021-11-23 03:30:20,584 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2021-11-23 03:30:20,584 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2021-11-23 03:30:20,584 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2021-11-23 03:30:20,584 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2021-11-23 03:30:20,584 INFO L130 BoogieDeclarations]: Found specification of procedure devm_clk_get [2021-11-23 03:30:20,584 INFO L138 BoogieDeclarations]: Found implementation of procedure devm_clk_get [2021-11-23 03:30:20,585 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-23 03:30:20,585 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-23 03:30:20,585 INFO L130 BoogieDeclarations]: Found specification of procedure clk_disable_unprepare [2021-11-23 03:30:20,585 INFO L138 BoogieDeclarations]: Found implementation of procedure clk_disable_unprepare [2021-11-23 03:30:20,585 INFO L130 BoogieDeclarations]: Found specification of procedure vb2_ioctl_querybuf [2021-11-23 03:30:20,585 INFO L138 BoogieDeclarations]: Found implementation of procedure vb2_ioctl_querybuf [2021-11-23 03:30:20,585 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-11-23 03:30:20,585 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-11-23 03:30:20,585 INFO L130 BoogieDeclarations]: Found specification of procedure to_vsp1_entity [2021-11-23 03:30:20,585 INFO L138 BoogieDeclarations]: Found implementation of procedure to_vsp1_entity [2021-11-23 03:30:20,585 INFO L130 BoogieDeclarations]: Found specification of procedure to_lif [2021-11-23 03:30:20,586 INFO L138 BoogieDeclarations]: Found implementation of procedure to_lif [2021-11-23 03:30:20,586 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_rwpf_set_format [2021-11-23 03:30:20,586 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_rwpf_set_format [2021-11-23 03:30:20,586 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_subdev_get_try_format___3 [2021-11-23 03:30:20,586 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_subdev_get_try_format___3 [2021-11-23 03:30:20,586 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_subdev_link_validate [2021-11-23 03:30:20,586 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_subdev_link_validate [2021-11-23 03:30:20,586 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_subdev_get_try_format___2 [2021-11-23 03:30:20,586 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_subdev_get_try_format___2 [2021-11-23 03:30:20,586 INFO L130 BoogieDeclarations]: Found specification of procedure vb2_ops_wait_prepare [2021-11-23 03:30:20,587 INFO L138 BoogieDeclarations]: Found implementation of procedure vb2_ops_wait_prepare [2021-11-23 03:30:20,587 INFO L130 BoogieDeclarations]: Found specification of procedure video_device_release_empty [2021-11-23 03:30:20,597 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_rwpf_enum_mbus_code [2021-11-23 03:30:20,598 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_rwpf_enum_mbus_code [2021-11-23 03:30:20,598 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2021-11-23 03:30:20,598 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2021-11-23 03:30:20,598 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_subdev_get_try_format___5 [2021-11-23 03:30:20,598 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_subdev_get_try_format___5 [2021-11-23 03:30:20,599 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_subdev_get_try_format___4 [2021-11-23 03:30:20,599 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_subdev_get_try_format___4 [2021-11-23 03:30:20,599 INFO L130 BoogieDeclarations]: Found specification of procedure lif_set_format [2021-11-23 03:30:20,599 INFO L138 BoogieDeclarations]: Found implementation of procedure lif_set_format [2021-11-23 03:30:20,599 INFO L130 BoogieDeclarations]: Found specification of procedure lut_enum_mbus_code [2021-11-23 03:30:20,599 INFO L138 BoogieDeclarations]: Found implementation of procedure lut_enum_mbus_code [2021-11-23 03:30:20,599 INFO L130 BoogieDeclarations]: Found specification of procedure lif_get_format [2021-11-23 03:30:20,600 INFO L138 BoogieDeclarations]: Found implementation of procedure lif_get_format [2021-11-23 03:30:20,600 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_rwpf_get_crop [2021-11-23 03:30:20,600 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_rwpf_get_crop [2021-11-23 03:30:20,600 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-23 03:30:20,600 INFO L130 BoogieDeclarations]: Found specification of procedure clk_prepare_enable [2021-11-23 03:30:20,600 INFO L138 BoogieDeclarations]: Found implementation of procedure clk_prepare_enable [2021-11-23 03:30:20,601 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-23 03:30:20,601 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-23 03:30:20,601 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_video_querycap [2021-11-23 03:30:20,601 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_video_querycap [2021-11-23 03:30:20,601 INFO L130 BoogieDeclarations]: Found specification of procedure media_entity_init [2021-11-23 03:30:20,601 INFO L138 BoogieDeclarations]: Found implementation of procedure media_entity_init [2021-11-23 03:30:20,601 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_video_buffer_queue [2021-11-23 03:30:20,602 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_video_buffer_queue [2021-11-23 03:30:20,602 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_video_init [2021-11-23 03:30:20,602 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_video_init [2021-11-23 03:30:20,602 INFO L130 BoogieDeclarations]: Found specification of procedure rpf_s_stream [2021-11-23 03:30:20,602 INFO L138 BoogieDeclarations]: Found implementation of procedure rpf_s_stream [2021-11-23 03:30:20,602 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_vsp1_platform_driver_exit_28_2 [2021-11-23 03:30:20,603 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_vsp1_platform_driver_exit_28_2 [2021-11-23 03:30:20,603 INFO L130 BoogieDeclarations]: Found specification of procedure media_entity_pipeline_stop [2021-11-23 03:30:20,603 INFO L138 BoogieDeclarations]: Found implementation of procedure media_entity_pipeline_stop [2021-11-23 03:30:20,603 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_set_subdevdata [2021-11-23 03:30:20,603 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_set_subdevdata [2021-11-23 03:30:20,603 INFO L130 BoogieDeclarations]: Found specification of procedure lut_set_format [2021-11-23 03:30:20,603 INFO L138 BoogieDeclarations]: Found implementation of procedure lut_set_format [2021-11-23 03:30:20,604 INFO L130 BoogieDeclarations]: Found specification of procedure hsit_enum_frame_size [2021-11-23 03:30:20,604 INFO L138 BoogieDeclarations]: Found implementation of procedure hsit_enum_frame_size [2021-11-23 03:30:20,604 INFO L130 BoogieDeclarations]: Found specification of procedure lut_enum_frame_size [2021-11-23 03:30:20,604 INFO L138 BoogieDeclarations]: Found implementation of procedure lut_enum_frame_size [2021-11-23 03:30:20,604 INFO L130 BoogieDeclarations]: Found specification of procedure vb2_get_drv_priv [2021-11-23 03:30:20,604 INFO L138 BoogieDeclarations]: Found implementation of procedure vb2_get_drv_priv [2021-11-23 03:30:20,605 INFO L130 BoogieDeclarations]: Found specification of procedure hsit_s_stream [2021-11-23 03:30:20,605 INFO L138 BoogieDeclarations]: Found implementation of procedure hsit_s_stream [2021-11-23 03:30:20,605 INFO L130 BoogieDeclarations]: Found specification of procedure wpf_vdev_queue [2021-11-23 03:30:20,605 INFO L138 BoogieDeclarations]: Found implementation of procedure wpf_vdev_queue [2021-11-23 03:30:20,605 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2021-11-23 03:30:20,605 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2021-11-23 03:30:20,605 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-23 03:30:20,606 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-23 03:30:20,606 INFO L130 BoogieDeclarations]: Found specification of procedure uds_get_format [2021-11-23 03:30:20,606 INFO L138 BoogieDeclarations]: Found implementation of procedure uds_get_format [2021-11-23 03:30:20,606 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2021-11-23 03:30:20,606 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2021-11-23 03:30:20,606 INFO L130 BoogieDeclarations]: Found specification of procedure media_entity_cleanup [2021-11-23 03:30:20,607 INFO L138 BoogieDeclarations]: Found implementation of procedure media_entity_cleanup [2021-11-23 03:30:20,608 INFO L130 BoogieDeclarations]: Found specification of procedure vb2_ioctl_qbuf [2021-11-23 03:30:20,608 INFO L138 BoogieDeclarations]: Found implementation of procedure vb2_ioctl_qbuf [2021-11-23 03:30:20,608 INFO L130 BoogieDeclarations]: Found specification of procedure lif_enum_mbus_code [2021-11-23 03:30:20,608 INFO L138 BoogieDeclarations]: Found implementation of procedure lif_enum_mbus_code [2021-11-23 03:30:20,608 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 03:30:20,608 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2021-11-23 03:30:20,609 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2021-11-23 03:30:20,609 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-11-23 03:30:20,609 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-11-23 03:30:22,305 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 03:30:22,310 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 03:30:29,656 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-23 03:32:04,981 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-23 03:32:05,209 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 03:32:08,257 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 03:32:08,258 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-23 03:32:08,266 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:32:08 BoogieIcfgContainer [2021-11-23 03:32:08,267 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 03:32:08,269 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 03:32:08,269 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 03:32:08,274 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 03:32:08,274 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 03:30:11" (1/3) ... [2021-11-23 03:32:08,275 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f32d156 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:32:08, skipping insertion in model container [2021-11-23 03:32:08,275 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:30:18" (2/3) ... [2021-11-23 03:32:08,276 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f32d156 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:32:08, skipping insertion in model container [2021-11-23 03:32:08,276 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:32:08" (3/3) ... [2021-11-23 03:32:08,278 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-platform-vsp1-vsp1.cil.i [2021-11-23 03:32:08,284 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 03:32:08,285 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-11-23 03:32:08,372 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 03:32:08,380 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-23 03:32:08,380 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-11-23 03:32:08,491 INFO L276 IsEmpty]: Start isEmpty. Operand has 2840 states, 1759 states have (on average 1.3342808413871519) internal successors, (2347), 1782 states have internal predecessors, (2347), 900 states have call successors, (900), 179 states have call predecessors, (900), 178 states have return successors, (887), 883 states have call predecessors, (887), 887 states have call successors, (887) [2021-11-23 03:32:08,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1125 [2021-11-23 03:32:08,750 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:32:08,754 INFO L514 BasicCegarLoop]: trace histogram [111, 110, 110, 110, 110, 110, 110, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:32:08,755 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-23 03:32:08,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:32:08,769 INFO L85 PathProgramCache]: Analyzing trace with hash 416839345, now seen corresponding path program 1 times [2021-11-23 03:32:08,784 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:32:08,785 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1051631465] [2021-11-23 03:32:08,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:32:08,788 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:32:09,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:32:11,068 INFO L134 CoverageAnalysis]: Checked inductivity of 48183 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48183 trivial. 0 not checked. [2021-11-23 03:32:11,069 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:32:11,069 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1051631465] [2021-11-23 03:32:11,070 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1051631465] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:32:11,071 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:32:11,071 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 03:32:11,073 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1760596391] [2021-11-23 03:32:11,074 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:32:11,084 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 03:32:11,085 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:32:11,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 03:32:11,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 03:32:11,129 INFO L87 Difference]: Start difference. First operand has 2840 states, 1759 states have (on average 1.3342808413871519) internal successors, (2347), 1782 states have internal predecessors, (2347), 900 states have call successors, (900), 179 states have call predecessors, (900), 178 states have return successors, (887), 883 states have call predecessors, (887), 887 states have call successors, (887) Second operand has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 3 states have call successors, (117), 2 states have call predecessors, (117), 1 states have return successors, (115), 3 states have call predecessors, (115), 3 states have call successors, (115) [2021-11-23 03:32:13,740 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:32:17,645 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2021-11-23 03:32:19,951 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:32:21,992 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-23 03:32:24,151 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:32:26,209 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:32:28,257 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:32:31,490 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-23 03:32:33,116 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:32:34,263 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:32:35,348 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:32:37,373 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:32:39,433 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:32:41,572 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:32:43,902 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2021-11-23 03:32:51,508 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.85s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:32:52,887 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:32:55,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:32:55,070 INFO L93 Difference]: Finished difference Result 7943 states and 11694 transitions. [2021-11-23 03:32:55,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 03:32:55,075 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 3 states have call successors, (117), 2 states have call predecessors, (117), 1 states have return successors, (115), 3 states have call predecessors, (115), 3 states have call successors, (115) Word has length 1124 [2021-11-23 03:32:55,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:32:55,174 INFO L225 Difference]: With dead ends: 7943 [2021-11-23 03:32:55,175 INFO L226 Difference]: Without dead ends: 5306 [2021-11-23 03:32:55,206 INFO L932 BasicCegarLoop]: 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 [2021-11-23 03:32:55,210 INFO L933 BasicCegarLoop]: 4273 mSDtfsCounter, 3624 mSDsluCounter, 4021 mSDsCounter, 0 mSdLazyCounter, 1173 mSolverCounterSat, 22 mSolverCounterUnsat, 11 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 41.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3642 SdHoareTripleChecker+Valid, 7764 SdHoareTripleChecker+Invalid, 1206 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 1173 IncrementalHoareTripleChecker+Invalid, 11 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 43.3s IncrementalHoareTripleChecker+Time [2021-11-23 03:32:55,212 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3642 Valid, 7764 Invalid, 1206 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [22 Valid, 1173 Invalid, 11 Unknown, 0 Unchecked, 43.3s Time] [2021-11-23 03:32:55,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5306 states. [2021-11-23 03:32:55,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5306 to 5296. [2021-11-23 03:32:55,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5296 states, 3331 states have (on average 1.3374362053437405) internal successors, (4455), 3376 states have internal predecessors, (4455), 1614 states have call successors, (1614), 351 states have call predecessors, (1614), 348 states have return successors, (1622), 1598 states have call predecessors, (1622), 1610 states have call successors, (1622) [2021-11-23 03:32:55,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5296 states to 5296 states and 7691 transitions. [2021-11-23 03:32:55,858 INFO L78 Accepts]: Start accepts. Automaton has 5296 states and 7691 transitions. Word has length 1124 [2021-11-23 03:32:55,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:32:55,869 INFO L470 AbstractCegarLoop]: Abstraction has 5296 states and 7691 transitions. [2021-11-23 03:32:55,870 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 3 states have call successors, (117), 2 states have call predecessors, (117), 1 states have return successors, (115), 3 states have call predecessors, (115), 3 states have call successors, (115) [2021-11-23 03:32:55,876 INFO L276 IsEmpty]: Start isEmpty. Operand 5296 states and 7691 transitions. [2021-11-23 03:32:55,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1142 [2021-11-23 03:32:55,968 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:32:55,970 INFO L514 BasicCegarLoop]: trace histogram [111, 110, 110, 110, 110, 110, 110, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:32:55,971 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-23 03:32:55,971 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-23 03:32:55,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:32:55,975 INFO L85 PathProgramCache]: Analyzing trace with hash -1082322997, now seen corresponding path program 1 times [2021-11-23 03:32:55,975 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:32:55,976 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [987763666] [2021-11-23 03:32:55,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:32:55,976 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:32:56,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:32:57,279 INFO L134 CoverageAnalysis]: Checked inductivity of 48180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48180 trivial. 0 not checked. [2021-11-23 03:32:57,280 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:32:57,280 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [987763666] [2021-11-23 03:32:57,280 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [987763666] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:32:57,280 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:32:57,281 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 03:32:57,281 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1469692598] [2021-11-23 03:32:57,281 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:32:57,285 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 03:32:57,286 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:32:57,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 03:32:57,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 03:32:57,287 INFO L87 Difference]: Start difference. First operand 5296 states and 7691 transitions. Second operand has 3 states, 3 states have (on average 47.0) internal successors, (141), 3 states have internal predecessors, (141), 3 states have call successors, (120), 2 states have call predecessors, (120), 1 states have return successors, (116), 3 states have call predecessors, (116), 3 states have call successors, (116) [2021-11-23 03:32:59,490 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:33:02,332 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:33:04,014 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:33:06,081 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:33:08,127 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:33:10,157 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:33:11,285 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:33:14,214 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-23 03:33:16,074 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:33:17,351 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:33:19,027 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.68s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:33:22,006 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:33:24,169 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:33:26,532 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2021-11-23 03:33:31,337 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:33:34,333 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-23 03:33:36,812 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:33:37,888 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:33:39,218 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:33:41,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:33:41,929 INFO L93 Difference]: Finished difference Result 12850 states and 18638 transitions. [2021-11-23 03:33:41,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 03:33:41,930 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.0) internal successors, (141), 3 states have internal predecessors, (141), 3 states have call successors, (120), 2 states have call predecessors, (120), 1 states have return successors, (116), 3 states have call predecessors, (116), 3 states have call successors, (116) Word has length 1141 [2021-11-23 03:33:41,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:33:42,022 INFO L225 Difference]: With dead ends: 12850 [2021-11-23 03:33:42,023 INFO L226 Difference]: Without dead ends: 7775 [2021-11-23 03:33:42,061 INFO L932 BasicCegarLoop]: 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 [2021-11-23 03:33:42,064 INFO L933 BasicCegarLoop]: 4273 mSDtfsCounter, 3625 mSDsluCounter, 4035 mSDsCounter, 0 mSdLazyCounter, 1153 mSolverCounterSat, 12 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 42.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3637 SdHoareTripleChecker+Valid, 7770 SdHoareTripleChecker+Invalid, 1173 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 1153 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 44.2s IncrementalHoareTripleChecker+Time [2021-11-23 03:33:42,064 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3637 Valid, 7770 Invalid, 1173 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 1153 Invalid, 8 Unknown, 0 Unchecked, 44.2s Time] [2021-11-23 03:33:42,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7775 states. [2021-11-23 03:33:42,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7775 to 7749. [2021-11-23 03:33:42,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7749 states, 4886 states have (on average 1.337904216127712) internal successors, (6537), 4956 states have internal predecessors, (6537), 2336 states have call successors, (2336), 527 states have call predecessors, (2336), 524 states have return successors, (2354), 2310 states have call predecessors, (2354), 2332 states have call successors, (2354) [2021-11-23 03:33:42,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7749 states to 7749 states and 11227 transitions. [2021-11-23 03:33:42,611 INFO L78 Accepts]: Start accepts. Automaton has 7749 states and 11227 transitions. Word has length 1141 [2021-11-23 03:33:42,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:33:42,614 INFO L470 AbstractCegarLoop]: Abstraction has 7749 states and 11227 transitions. [2021-11-23 03:33:42,614 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.0) internal successors, (141), 3 states have internal predecessors, (141), 3 states have call successors, (120), 2 states have call predecessors, (120), 1 states have return successors, (116), 3 states have call predecessors, (116), 3 states have call successors, (116) [2021-11-23 03:33:42,615 INFO L276 IsEmpty]: Start isEmpty. Operand 7749 states and 11227 transitions. [2021-11-23 03:33:42,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1142 [2021-11-23 03:33:42,638 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:33:42,639 INFO L514 BasicCegarLoop]: trace histogram [111, 110, 110, 110, 110, 110, 110, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:33:42,640 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-23 03:33:42,640 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-23 03:33:42,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:33:42,641 INFO L85 PathProgramCache]: Analyzing trace with hash 387300646, now seen corresponding path program 1 times [2021-11-23 03:33:42,641 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:33:42,642 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [988167742] [2021-11-23 03:33:42,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:33:42,642 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:33:42,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:33:43,684 INFO L134 CoverageAnalysis]: Checked inductivity of 48180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48180 trivial. 0 not checked. [2021-11-23 03:33:43,686 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:33:43,686 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [988167742] [2021-11-23 03:33:43,686 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [988167742] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:33:43,686 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:33:43,687 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 03:33:43,687 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2033063177] [2021-11-23 03:33:43,687 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:33:43,690 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 03:33:43,691 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:33:43,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 03:33:43,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 03:33:43,694 INFO L87 Difference]: Start difference. First operand 7749 states and 11227 transitions. Second operand has 3 states, 3 states have (on average 47.0) internal successors, (141), 3 states have internal predecessors, (141), 3 states have call successors, (120), 2 states have call predecessors, (120), 1 states have return successors, (116), 3 states have call predecessors, (116), 3 states have call successors, (116) [2021-11-23 03:33:48,302 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:33:52,882 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.63s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:33:54,933 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:33:56,979 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:33:58,466 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:34:00,759 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:34:04,826 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.57s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:34:07,474 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.62s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:34:09,522 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:34:11,619 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:34:13,564 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:34:15,144 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.58s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:34:18,231 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:34:20,529 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2021-11-23 03:34:22,754 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-23 03:34:25,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:34:25,618 INFO L93 Difference]: Finished difference Result 22317 states and 32305 transitions. [2021-11-23 03:34:25,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 03:34:25,620 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.0) internal successors, (141), 3 states have internal predecessors, (141), 3 states have call successors, (120), 2 states have call predecessors, (120), 1 states have return successors, (116), 3 states have call predecessors, (116), 3 states have call successors, (116) Word has length 1141 [2021-11-23 03:34:25,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:34:25,767 INFO L225 Difference]: With dead ends: 22317 [2021-11-23 03:34:25,767 INFO L226 Difference]: Without dead ends: 14789 [2021-11-23 03:34:25,820 INFO L932 BasicCegarLoop]: 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 [2021-11-23 03:34:25,821 INFO L933 BasicCegarLoop]: 4759 mSDtfsCounter, 3542 mSDsluCounter, 3998 mSDsCounter, 0 mSdLazyCounter, 1270 mSolverCounterSat, 29 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 39.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3549 SdHoareTripleChecker+Valid, 8229 SdHoareTripleChecker+Invalid, 1306 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 1270 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 41.5s IncrementalHoareTripleChecker+Time [2021-11-23 03:34:25,822 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3549 Valid, 8229 Invalid, 1306 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 1270 Invalid, 7 Unknown, 0 Unchecked, 41.5s Time] [2021-11-23 03:34:25,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14789 states. [2021-11-23 03:34:26,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14789 to 14759. [2021-11-23 03:34:26,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14759 states, 9324 states have (on average 1.3345130845130846) internal successors, (12443), 9459 states have internal predecessors, (12443), 4401 states have call successors, (4401), 1036 states have call predecessors, (4401), 1031 states have return successors, (4446), 4347 states have call predecessors, (4446), 4397 states have call successors, (4446) [2021-11-23 03:34:26,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14759 states to 14759 states and 21290 transitions. [2021-11-23 03:34:26,742 INFO L78 Accepts]: Start accepts. Automaton has 14759 states and 21290 transitions. Word has length 1141 [2021-11-23 03:34:26,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:34:26,745 INFO L470 AbstractCegarLoop]: Abstraction has 14759 states and 21290 transitions. [2021-11-23 03:34:26,746 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.0) internal successors, (141), 3 states have internal predecessors, (141), 3 states have call successors, (120), 2 states have call predecessors, (120), 1 states have return successors, (116), 3 states have call predecessors, (116), 3 states have call successors, (116) [2021-11-23 03:34:26,747 INFO L276 IsEmpty]: Start isEmpty. Operand 14759 states and 21290 transitions. [2021-11-23 03:34:26,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1146 [2021-11-23 03:34:26,771 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:34:26,772 INFO L514 BasicCegarLoop]: trace histogram [111, 110, 110, 110, 110, 110, 110, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:34:26,773 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-23 03:34:26,773 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-23 03:34:26,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:34:26,774 INFO L85 PathProgramCache]: Analyzing trace with hash -1529755748, now seen corresponding path program 1 times [2021-11-23 03:34:26,774 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:34:26,775 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1886979659] [2021-11-23 03:34:26,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:34:26,775 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:34:27,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:34:27,715 INFO L134 CoverageAnalysis]: Checked inductivity of 48180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48180 trivial. 0 not checked. [2021-11-23 03:34:27,716 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:34:27,716 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1886979659] [2021-11-23 03:34:27,716 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1886979659] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:34:27,716 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:34:27,717 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 03:34:27,717 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1286002298] [2021-11-23 03:34:27,717 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:34:27,719 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 03:34:27,719 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:34:27,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 03:34:27,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 03:34:27,721 INFO L87 Difference]: Start difference. First operand 14759 states and 21290 transitions. Second operand has 3 states, 3 states have (on average 48.0) internal successors, (144), 3 states have internal predecessors, (144), 3 states have call successors, (120), 2 states have call predecessors, (120), 1 states have return successors, (117), 3 states have call predecessors, (117), 3 states have call successors, (117) [2021-11-23 03:34:30,427 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.78s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:34:33,249 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:34:35,288 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:34:37,339 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:34:39,382 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:34:43,190 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-23 03:34:44,598 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:34:47,576 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:34:48,618 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:34:50,771 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:34:53,160 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.25s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:34:55,429 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-23 03:34:56,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:34:56,752 INFO L93 Difference]: Finished difference Result 29355 states and 42271 transitions. [2021-11-23 03:34:56,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 03:34:56,753 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 48.0) internal successors, (144), 3 states have internal predecessors, (144), 3 states have call successors, (120), 2 states have call predecessors, (120), 1 states have return successors, (117), 3 states have call predecessors, (117), 3 states have call successors, (117) Word has length 1145 [2021-11-23 03:34:56,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:34:56,856 INFO L225 Difference]: With dead ends: 29355 [2021-11-23 03:34:56,856 INFO L226 Difference]: Without dead ends: 14817 [2021-11-23 03:34:56,926 INFO L932 BasicCegarLoop]: 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 [2021-11-23 03:34:56,928 INFO L933 BasicCegarLoop]: 3525 mSDtfsCounter, 3698 mSDsluCounter, 412 mSDsCounter, 0 mSdLazyCounter, 583 mSolverCounterSat, 2 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 27.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3709 SdHoareTripleChecker+Valid, 3917 SdHoareTripleChecker+Invalid, 592 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 583 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 28.6s IncrementalHoareTripleChecker+Time [2021-11-23 03:34:56,928 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3709 Valid, 3917 Invalid, 592 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 583 Invalid, 7 Unknown, 0 Unchecked, 28.6s Time] [2021-11-23 03:34:56,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14817 states. [2021-11-23 03:34:57,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14817 to 14805. [2021-11-23 03:34:57,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14805 states, 9356 states have (on average 1.3321932449764857) internal successors, (12464), 9500 states have internal predecessors, (12464), 4379 states have call successors, (4379), 1063 states have call predecessors, (4379), 1067 states have return successors, (4439), 4325 states have call predecessors, (4439), 4375 states have call successors, (4439) [2021-11-23 03:34:58,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14805 states to 14805 states and 21282 transitions. [2021-11-23 03:34:58,134 INFO L78 Accepts]: Start accepts. Automaton has 14805 states and 21282 transitions. Word has length 1145 [2021-11-23 03:34:58,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:34:58,136 INFO L470 AbstractCegarLoop]: Abstraction has 14805 states and 21282 transitions. [2021-11-23 03:34:58,136 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.0) internal successors, (144), 3 states have internal predecessors, (144), 3 states have call successors, (120), 2 states have call predecessors, (120), 1 states have return successors, (117), 3 states have call predecessors, (117), 3 states have call successors, (117) [2021-11-23 03:34:58,136 INFO L276 IsEmpty]: Start isEmpty. Operand 14805 states and 21282 transitions. [2021-11-23 03:34:58,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1147 [2021-11-23 03:34:58,160 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:34:58,161 INFO L514 BasicCegarLoop]: trace histogram [111, 110, 110, 110, 110, 110, 110, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:34:58,161 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-23 03:34:58,162 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-23 03:34:58,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:34:58,163 INFO L85 PathProgramCache]: Analyzing trace with hash 656079, now seen corresponding path program 1 times [2021-11-23 03:34:58,163 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:34:58,163 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1058192729] [2021-11-23 03:34:58,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:34:58,164 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:34:58,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:34:59,123 INFO L134 CoverageAnalysis]: Checked inductivity of 48180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48180 trivial. 0 not checked. [2021-11-23 03:34:59,123 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:34:59,123 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1058192729] [2021-11-23 03:34:59,124 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1058192729] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:34:59,124 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:34:59,124 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 03:34:59,124 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [856705101] [2021-11-23 03:34:59,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:34:59,127 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 03:34:59,127 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:34:59,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 03:34:59,128 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 03:34:59,128 INFO L87 Difference]: Start difference. First operand 14805 states and 21282 transitions. Second operand has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 3 states have internal predecessors, (145), 3 states have call successors, (120), 2 states have call predecessors, (120), 1 states have return successors, (117), 3 states have call predecessors, (117), 3 states have call successors, (117) [2021-11-23 03:35:01,274 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:35:06,006 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:35:08,050 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:35:09,975 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.92s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:35:13,104 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:35:18,856 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:35:20,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:35:20,517 INFO L93 Difference]: Finished difference Result 28891 states and 41494 transitions. [2021-11-23 03:35:20,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 03:35:20,518 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 3 states have internal predecessors, (145), 3 states have call successors, (120), 2 states have call predecessors, (120), 1 states have return successors, (117), 3 states have call predecessors, (117), 3 states have call successors, (117) Word has length 1146 [2021-11-23 03:35:20,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:35:20,613 INFO L225 Difference]: With dead ends: 28891 [2021-11-23 03:35:20,613 INFO L226 Difference]: Without dead ends: 14325 [2021-11-23 03:35:20,675 INFO L932 BasicCegarLoop]: 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 [2021-11-23 03:35:20,676 INFO L933 BasicCegarLoop]: 3409 mSDtfsCounter, 3584 mSDsluCounter, 394 mSDsCounter, 0 mSdLazyCounter, 567 mSolverCounterSat, 2 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3590 SdHoareTripleChecker+Valid, 3789 SdHoareTripleChecker+Invalid, 573 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 567 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.9s IncrementalHoareTripleChecker+Time [2021-11-23 03:35:20,677 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3590 Valid, 3789 Invalid, 573 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 567 Invalid, 4 Unknown, 0 Unchecked, 20.9s Time] [2021-11-23 03:35:20,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14325 states. [2021-11-23 03:35:21,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14325 to 14325. [2021-11-23 03:35:21,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14325 states, 9081 states have (on average 1.331791652901663) internal successors, (12094), 9207 states have internal predecessors, (12094), 4195 states have call successors, (4195), 1042 states have call predecessors, (4195), 1046 states have return successors, (4255), 4141 states have call predecessors, (4255), 4191 states have call successors, (4255) [2021-11-23 03:35:21,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14325 states to 14325 states and 20544 transitions. [2021-11-23 03:35:21,602 INFO L78 Accepts]: Start accepts. Automaton has 14325 states and 20544 transitions. Word has length 1146 [2021-11-23 03:35:21,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:35:21,604 INFO L470 AbstractCegarLoop]: Abstraction has 14325 states and 20544 transitions. [2021-11-23 03:35:21,604 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 3 states have internal predecessors, (145), 3 states have call successors, (120), 2 states have call predecessors, (120), 1 states have return successors, (117), 3 states have call predecessors, (117), 3 states have call successors, (117) [2021-11-23 03:35:21,605 INFO L276 IsEmpty]: Start isEmpty. Operand 14325 states and 20544 transitions. [2021-11-23 03:35:21,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1158 [2021-11-23 03:35:21,631 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:35:21,635 INFO L514 BasicCegarLoop]: trace histogram [111, 110, 110, 110, 110, 110, 110, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:35:21,635 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-23 03:35:21,636 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-23 03:35:21,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:35:21,637 INFO L85 PathProgramCache]: Analyzing trace with hash 2133925853, now seen corresponding path program 1 times [2021-11-23 03:35:21,637 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:35:21,637 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [427088560] [2021-11-23 03:35:21,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:35:21,638 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:35:21,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:35:22,841 INFO L134 CoverageAnalysis]: Checked inductivity of 48180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48180 trivial. 0 not checked. [2021-11-23 03:35:22,842 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:35:22,842 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [427088560] [2021-11-23 03:35:22,842 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [427088560] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:35:22,842 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:35:22,843 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 03:35:22,843 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2003339970] [2021-11-23 03:35:22,843 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:35:22,845 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 03:35:22,845 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:35:22,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 03:35:22,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 03:35:22,847 INFO L87 Difference]: Start difference. First operand 14325 states and 20544 transitions. Second operand has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 3 states have call successors, (119), 2 states have call predecessors, (119), 1 states have return successors, (116), 3 states have call predecessors, (116), 3 states have call successors, (116) [2021-11-23 03:35:25,336 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:35:28,649 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:35:30,795 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:35:32,837 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:35:34,894 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:35:37,645 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:35:39,676 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:35:42,062 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:35:44,093 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:35:46,193 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:35:48,779 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:35:54,205 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-23 03:35:55,711 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:35:56,754 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:36:00,331 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2021-11-23 03:36:02,547 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-23 03:36:04,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:36:04,514 INFO L93 Difference]: Finished difference Result 36862 states and 52909 transitions. [2021-11-23 03:36:04,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 03:36:04,515 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 3 states have call successors, (119), 2 states have call predecessors, (119), 1 states have return successors, (116), 3 states have call predecessors, (116), 3 states have call successors, (116) Word has length 1157 [2021-11-23 03:36:04,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:36:04,647 INFO L225 Difference]: With dead ends: 36862 [2021-11-23 03:36:04,647 INFO L226 Difference]: Without dead ends: 22776 [2021-11-23 03:36:04,701 INFO L932 BasicCegarLoop]: 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 [2021-11-23 03:36:04,702 INFO L933 BasicCegarLoop]: 4300 mSDtfsCounter, 3449 mSDsluCounter, 3899 mSDsCounter, 0 mSdLazyCounter, 1128 mSolverCounterSat, 7 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 39.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3460 SdHoareTripleChecker+Valid, 7668 SdHoareTripleChecker+Invalid, 1144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1128 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 40.8s IncrementalHoareTripleChecker+Time [2021-11-23 03:36:04,703 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3460 Valid, 7668 Invalid, 1144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1128 Invalid, 9 Unknown, 0 Unchecked, 40.8s Time] [2021-11-23 03:36:04,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22776 states. [2021-11-23 03:36:05,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22776 to 22738. [2021-11-23 03:36:05,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22738 states, 14454 states have (on average 1.334924588349246) internal successors, (19295), 14663 states have internal predecessors, (19295), 6625 states have call successors, (6625), 1654 states have call predecessors, (6625), 1656 states have return successors, (6722), 6525 states have call predecessors, (6722), 6621 states have call successors, (6722) [2021-11-23 03:36:06,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22738 states to 22738 states and 32642 transitions. [2021-11-23 03:36:06,068 INFO L78 Accepts]: Start accepts. Automaton has 22738 states and 32642 transitions. Word has length 1157 [2021-11-23 03:36:06,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:36:06,069 INFO L470 AbstractCegarLoop]: Abstraction has 22738 states and 32642 transitions. [2021-11-23 03:36:06,070 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 3 states have call successors, (119), 2 states have call predecessors, (119), 1 states have return successors, (116), 3 states have call predecessors, (116), 3 states have call successors, (116) [2021-11-23 03:36:06,207 INFO L276 IsEmpty]: Start isEmpty. Operand 22738 states and 32642 transitions. [2021-11-23 03:36:06,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1161 [2021-11-23 03:36:06,234 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:36:06,235 INFO L514 BasicCegarLoop]: trace histogram [112, 110, 110, 110, 110, 110, 110, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:36:06,235 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-23 03:36:06,236 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-23 03:36:06,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:36:06,237 INFO L85 PathProgramCache]: Analyzing trace with hash 2042920991, now seen corresponding path program 1 times [2021-11-23 03:36:06,237 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:36:06,237 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1096601290] [2021-11-23 03:36:06,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:36:06,238 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:36:06,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:36:07,177 INFO L134 CoverageAnalysis]: Checked inductivity of 48408 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 48402 trivial. 0 not checked. [2021-11-23 03:36:07,177 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:36:07,178 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1096601290] [2021-11-23 03:36:07,178 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1096601290] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:36:07,178 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:36:07,178 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 03:36:07,179 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1677724572] [2021-11-23 03:36:07,179 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:36:07,180 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 03:36:07,181 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:36:07,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 03:36:07,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 03:36:07,182 INFO L87 Difference]: Start difference. First operand 22738 states and 32642 transitions. Second operand has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 3 states have call successors, (122), 2 states have call predecessors, (122), 1 states have return successors, (118), 3 states have call predecessors, (118), 3 states have call successors, (118) [2021-11-23 03:36:09,604 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:36:14,554 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:36:16,589 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:36:18,673 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:36:20,139 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:36:22,559 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-23 03:36:25,831 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:36:28,978 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:36:31,058 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:36:36,081 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:36:38,877 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.54s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:36:41,408 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:36:44,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:36:44,596 INFO L93 Difference]: Finished difference Result 59634 states and 85626 transitions. [2021-11-23 03:36:44,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 03:36:44,597 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 3 states have call successors, (122), 2 states have call predecessors, (122), 1 states have return successors, (118), 3 states have call predecessors, (118), 3 states have call successors, (118) Word has length 1160 [2021-11-23 03:36:44,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:36:44,892 INFO L225 Difference]: With dead ends: 59634 [2021-11-23 03:36:44,893 INFO L226 Difference]: Without dead ends: 37135 [2021-11-23 03:36:44,963 INFO L932 BasicCegarLoop]: 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 [2021-11-23 03:36:44,964 INFO L933 BasicCegarLoop]: 5173 mSDtfsCounter, 3507 mSDsluCounter, 3895 mSDsCounter, 0 mSdLazyCounter, 1357 mSolverCounterSat, 12 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 35.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3517 SdHoareTripleChecker+Valid, 8537 SdHoareTripleChecker+Invalid, 1375 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 1357 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 36.3s IncrementalHoareTripleChecker+Time [2021-11-23 03:36:44,964 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3517 Valid, 8537 Invalid, 1375 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 1357 Invalid, 6 Unknown, 0 Unchecked, 36.3s Time] [2021-11-23 03:36:44,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37135 states. [2021-11-23 03:36:46,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37135 to 37098. [2021-11-23 03:36:46,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37098 states, 23660 states have (on average 1.3368554522400675) internal successors, (31630), 24009 states have internal predecessors, (31630), 10699 states have call successors, (10699), 2744 states have call predecessors, (10699), 2736 states have return successors, (10864), 10515 states have call predecessors, (10864), 10695 states have call successors, (10864) [2021-11-23 03:36:46,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37098 states to 37098 states and 53193 transitions. [2021-11-23 03:36:46,906 INFO L78 Accepts]: Start accepts. Automaton has 37098 states and 53193 transitions. Word has length 1160 [2021-11-23 03:36:46,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:36:46,907 INFO L470 AbstractCegarLoop]: Abstraction has 37098 states and 53193 transitions. [2021-11-23 03:36:46,907 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 3 states have call successors, (122), 2 states have call predecessors, (122), 1 states have return successors, (118), 3 states have call predecessors, (118), 3 states have call successors, (118) [2021-11-23 03:36:46,908 INFO L276 IsEmpty]: Start isEmpty. Operand 37098 states and 53193 transitions. [2021-11-23 03:36:46,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1182 [2021-11-23 03:36:46,930 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:36:46,931 INFO L514 BasicCegarLoop]: trace histogram [114, 110, 110, 110, 110, 110, 110, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:36:46,931 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-23 03:36:46,931 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-23 03:36:46,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:36:46,933 INFO L85 PathProgramCache]: Analyzing trace with hash -69113699, now seen corresponding path program 1 times [2021-11-23 03:36:46,933 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:36:46,933 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1064826142] [2021-11-23 03:36:46,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:36:46,933 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:36:47,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:36:48,983 INFO L134 CoverageAnalysis]: Checked inductivity of 48886 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48886 trivial. 0 not checked. [2021-11-23 03:36:48,983 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:36:48,983 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1064826142] [2021-11-23 03:36:48,983 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1064826142] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:36:48,984 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:36:48,984 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-23 03:36:48,984 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [473613982] [2021-11-23 03:36:48,984 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:36:48,986 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-23 03:36:48,986 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:36:48,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-23 03:36:48,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-23 03:36:48,987 INFO L87 Difference]: Start difference. First operand 37098 states and 53193 transitions. Second operand has 5 states, 5 states have (on average 31.6) internal successors, (158), 4 states have internal predecessors, (158), 2 states have call successors, (123), 3 states have call predecessors, (123), 1 states have return successors, (121), 2 states have call predecessors, (121), 2 states have call successors, (121) [2021-11-23 03:36:59,777 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:37:01,138 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:37:03,485 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:37:05,340 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.85s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:37:07,380 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:37:09,415 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:37:11,461 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:37:15,287 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-23 03:37:21,816 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:37:22,893 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:37:27,238 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:37:29,333 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:37:34,602 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-23 03:37:36,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:37:36,668 INFO L93 Difference]: Finished difference Result 37128 states and 53222 transitions. [2021-11-23 03:37:36,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-23 03:37:36,668 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 31.6) internal successors, (158), 4 states have internal predecessors, (158), 2 states have call successors, (123), 3 states have call predecessors, (123), 1 states have return successors, (121), 2 states have call predecessors, (121), 2 states have call successors, (121) Word has length 1181 [2021-11-23 03:37:36,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:37:36,815 INFO L225 Difference]: With dead ends: 37128 [2021-11-23 03:37:36,815 INFO L226 Difference]: Without dead ends: 37126 [2021-11-23 03:37:36,831 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-23 03:37:36,832 INFO L933 BasicCegarLoop]: 3394 mSDtfsCounter, 3663 mSDsluCounter, 7918 mSDsCounter, 0 mSdLazyCounter, 1670 mSolverCounterSat, 1 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 45.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3679 SdHoareTripleChecker+Valid, 10203 SdHoareTripleChecker+Invalid, 1678 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1670 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 46.6s IncrementalHoareTripleChecker+Time [2021-11-23 03:37:36,833 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3679 Valid, 10203 Invalid, 1678 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1670 Invalid, 7 Unknown, 0 Unchecked, 46.6s Time] [2021-11-23 03:37:36,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37126 states. [2021-11-23 03:37:38,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37126 to 37126. [2021-11-23 03:37:38,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37126 states, 23677 states have (on average 1.336698061409807) internal successors, (31649), 24026 states have internal predecessors, (31649), 10703 states have call successors, (10703), 2751 states have call predecessors, (10703), 2743 states have return successors, (10868), 10519 states have call predecessors, (10868), 10699 states have call successors, (10868) [2021-11-23 03:37:38,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37126 states to 37126 states and 53220 transitions. [2021-11-23 03:37:38,707 INFO L78 Accepts]: Start accepts. Automaton has 37126 states and 53220 transitions. Word has length 1181 [2021-11-23 03:37:38,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:37:38,708 INFO L470 AbstractCegarLoop]: Abstraction has 37126 states and 53220 transitions. [2021-11-23 03:37:38,709 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 31.6) internal successors, (158), 4 states have internal predecessors, (158), 2 states have call successors, (123), 3 states have call predecessors, (123), 1 states have return successors, (121), 2 states have call predecessors, (121), 2 states have call successors, (121) [2021-11-23 03:37:38,709 INFO L276 IsEmpty]: Start isEmpty. Operand 37126 states and 53220 transitions. [2021-11-23 03:37:38,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1187 [2021-11-23 03:37:38,731 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:37:38,732 INFO L514 BasicCegarLoop]: trace histogram [114, 110, 110, 110, 110, 110, 110, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:37:38,732 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-23 03:37:38,733 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-23 03:37:38,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:37:38,734 INFO L85 PathProgramCache]: Analyzing trace with hash -1719757517, now seen corresponding path program 1 times [2021-11-23 03:37:38,734 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:37:38,734 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1721899434] [2021-11-23 03:37:38,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:37:38,734 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:37:38,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:37:40,218 INFO L134 CoverageAnalysis]: Checked inductivity of 48888 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 48886 trivial. 0 not checked. [2021-11-23 03:37:40,219 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:37:40,219 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1721899434] [2021-11-23 03:37:40,219 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1721899434] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:37:40,219 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:37:40,220 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-23 03:37:40,220 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1510879548] [2021-11-23 03:37:40,220 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:37:40,222 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-23 03:37:40,222 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:37:40,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-23 03:37:40,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-23 03:37:40,223 INFO L87 Difference]: Start difference. First operand 37126 states and 53220 transitions. Second operand has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 2 states have call successors, (124), 3 states have call predecessors, (124), 1 states have return successors, (122), 2 states have call predecessors, (122), 2 states have call successors, (122) [2021-11-23 03:37:43,899 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:37:44,926 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:37:52,151 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2021-11-23 03:37:54,335 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2021-11-23 03:37:56,226 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:37:57,254 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:37:58,529 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:38:00,568 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:38:02,626 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:38:04,627 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:38:06,190 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.56s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:38:07,590 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:38:12,079 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-23 03:38:14,114 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.66s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:38:18,014 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:38:20,246 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:38:22,406 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:38:24,165 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:38:27,270 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:38:29,383 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:38:34,714 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2021-11-23 03:38:37,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:38:37,152 INFO L93 Difference]: Finished difference Result 37132 states and 53225 transitions. [2021-11-23 03:38:37,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-23 03:38:37,153 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 2 states have call successors, (124), 3 states have call predecessors, (124), 1 states have return successors, (122), 2 states have call predecessors, (122), 2 states have call successors, (122) Word has length 1186 [2021-11-23 03:38:37,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:38:37,429 INFO L225 Difference]: With dead ends: 37132 [2021-11-23 03:38:37,429 INFO L226 Difference]: Without dead ends: 37130 [2021-11-23 03:38:37,448 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-23 03:38:37,449 INFO L933 BasicCegarLoop]: 3397 mSDtfsCounter, 3651 mSDsluCounter, 7918 mSDsCounter, 0 mSdLazyCounter, 1666 mSolverCounterSat, 1 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 53.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3669 SdHoareTripleChecker+Valid, 10209 SdHoareTripleChecker+Invalid, 1675 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1666 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 55.7s IncrementalHoareTripleChecker+Time [2021-11-23 03:38:37,450 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3669 Valid, 10209 Invalid, 1675 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1666 Invalid, 8 Unknown, 0 Unchecked, 55.7s Time] [2021-11-23 03:38:37,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37130 states. [2021-11-23 03:38:39,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37130 to 37130. [2021-11-23 03:38:39,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37130 states, 23680 states have (on average 1.3366554054054054) internal successors, (31652), 24029 states have internal predecessors, (31652), 10703 states have call successors, (10703), 2752 states have call predecessors, (10703), 2744 states have return successors, (10868), 10519 states have call predecessors, (10868), 10699 states have call successors, (10868) [2021-11-23 03:38:39,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37130 states to 37130 states and 53223 transitions. [2021-11-23 03:38:39,391 INFO L78 Accepts]: Start accepts. Automaton has 37130 states and 53223 transitions. Word has length 1186 [2021-11-23 03:38:39,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:38:39,392 INFO L470 AbstractCegarLoop]: Abstraction has 37130 states and 53223 transitions. [2021-11-23 03:38:39,392 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 2 states have call successors, (124), 3 states have call predecessors, (124), 1 states have return successors, (122), 2 states have call predecessors, (122), 2 states have call successors, (122) [2021-11-23 03:38:39,392 INFO L276 IsEmpty]: Start isEmpty. Operand 37130 states and 53223 transitions. [2021-11-23 03:38:39,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1192 [2021-11-23 03:38:39,421 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:38:39,422 INFO L514 BasicCegarLoop]: trace histogram [114, 110, 110, 110, 110, 110, 110, 5, 5, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:38:39,423 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-23 03:38:39,423 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-23 03:38:39,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:38:39,424 INFO L85 PathProgramCache]: Analyzing trace with hash 189853213, now seen corresponding path program 1 times [2021-11-23 03:38:39,424 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:38:39,424 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1431597378] [2021-11-23 03:38:39,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:38:39,425 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:38:39,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:38:41,479 INFO L134 CoverageAnalysis]: Checked inductivity of 48894 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 48890 trivial. 0 not checked. [2021-11-23 03:38:41,479 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:38:41,479 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1431597378] [2021-11-23 03:38:41,480 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1431597378] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:38:41,480 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:38:41,480 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-23 03:38:41,480 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1092693795] [2021-11-23 03:38:41,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:38:41,482 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-23 03:38:41,482 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:38:41,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-23 03:38:41,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-23 03:38:41,484 INFO L87 Difference]: Start difference. First operand 37130 states and 53223 transitions. Second operand has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 2 states have call successors, (125), 3 states have call predecessors, (125), 1 states have return successors, (123), 2 states have call predecessors, (123), 2 states have call successors, (123) [2021-11-23 03:38:45,121 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:38:52,706 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.73s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2021-11-23 03:38:53,894 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:38:55,027 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:38:58,001 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:39:00,045 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:39:02,096 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:39:03,804 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.63s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:39:07,362 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-23 03:39:12,064 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.71s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:39:14,887 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:39:17,778 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:39:19,867 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.76s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:39:22,268 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:39:24,387 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:39:29,926 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-23 03:39:31,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:39:31,700 INFO L93 Difference]: Finished difference Result 37684 states and 53845 transitions. [2021-11-23 03:39:31,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-23 03:39:31,701 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 2 states have call successors, (125), 3 states have call predecessors, (125), 1 states have return successors, (123), 2 states have call predecessors, (123), 2 states have call successors, (123) Word has length 1191 [2021-11-23 03:39:31,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:39:31,842 INFO L225 Difference]: With dead ends: 37684 [2021-11-23 03:39:31,842 INFO L226 Difference]: Without dead ends: 37682 [2021-11-23 03:39:31,856 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-23 03:39:31,856 INFO L933 BasicCegarLoop]: 3404 mSDtfsCounter, 3596 mSDsluCounter, 8033 mSDsCounter, 0 mSdLazyCounter, 1675 mSolverCounterSat, 2 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 47.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3612 SdHoareTripleChecker+Valid, 10324 SdHoareTripleChecker+Invalid, 1684 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1675 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 49.0s IncrementalHoareTripleChecker+Time [2021-11-23 03:39:31,857 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3612 Valid, 10324 Invalid, 1684 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1675 Invalid, 7 Unknown, 0 Unchecked, 49.0s Time] [2021-11-23 03:39:31,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37682 states. [2021-11-23 03:39:33,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37682 to 37680. [2021-11-23 03:39:33,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37680 states, 24033 states have (on average 1.3346232263970375) internal successors, (32075), 24382 states have internal predecessors, (32075), 10801 states have call successors, (10801), 2851 states have call predecessors, (10801), 2843 states have return successors, (10966), 10617 states have call predecessors, (10966), 10797 states have call successors, (10966) [2021-11-23 03:39:33,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37680 states to 37680 states and 53842 transitions. [2021-11-23 03:39:33,696 INFO L78 Accepts]: Start accepts. Automaton has 37680 states and 53842 transitions. Word has length 1191 [2021-11-23 03:39:33,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:39:33,697 INFO L470 AbstractCegarLoop]: Abstraction has 37680 states and 53842 transitions. [2021-11-23 03:39:33,697 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 2 states have call successors, (125), 3 states have call predecessors, (125), 1 states have return successors, (123), 2 states have call predecessors, (123), 2 states have call successors, (123) [2021-11-23 03:39:33,698 INFO L276 IsEmpty]: Start isEmpty. Operand 37680 states and 53842 transitions. [2021-11-23 03:39:33,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1198 [2021-11-23 03:39:33,737 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:39:33,738 INFO L514 BasicCegarLoop]: trace histogram [114, 110, 110, 110, 110, 110, 110, 5, 5, 4, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:39:33,738 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-23 03:39:33,739 INFO L402 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)] === [2021-11-23 03:39:33,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:39:33,739 INFO L85 PathProgramCache]: Analyzing trace with hash 1236970778, now seen corresponding path program 1 times [2021-11-23 03:39:33,740 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:39:33,740 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1003327799] [2021-11-23 03:39:33,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:39:33,740 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:39:33,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:39:35,284 INFO L134 CoverageAnalysis]: Checked inductivity of 48905 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 48899 trivial. 0 not checked. [2021-11-23 03:39:35,284 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:39:35,284 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1003327799] [2021-11-23 03:39:35,285 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1003327799] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:39:35,285 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:39:35,285 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-23 03:39:35,285 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1091282336] [2021-11-23 03:39:35,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:39:35,287 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-23 03:39:35,287 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:39:35,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-23 03:39:35,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-23 03:39:35,293 INFO L87 Difference]: Start difference. First operand 37680 states and 53842 transitions. Second operand has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 2 states have call successors, (126), 3 states have call predecessors, (126), 1 states have return successors, (124), 2 states have call predecessors, (124), 2 states have call successors, (124) [2021-11-23 03:39:38,596 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:39:41,374 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.84s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:39:47,701 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.80s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:39:48,812 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:39:50,844 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:39:52,901 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:39:54,837 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.93s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:39:56,096 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:39:57,495 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:39:58,699 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:39:59,860 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:40:01,827 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:40:04,246 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:40:05,454 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:40:06,789 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:40:08,202 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:40:09,499 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:40:13,459 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.62s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:40:15,801 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:40:18,759 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:40:20,871 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:40:26,512 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-23 03:40:28,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:40:28,307 INFO L93 Difference]: Finished difference Result 37786 states and 53904 transitions. [2021-11-23 03:40:28,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-23 03:40:28,308 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 2 states have call successors, (126), 3 states have call predecessors, (126), 1 states have return successors, (124), 2 states have call predecessors, (124), 2 states have call successors, (124) Word has length 1197 [2021-11-23 03:40:28,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:40:28,509 INFO L225 Difference]: With dead ends: 37786 [2021-11-23 03:40:28,509 INFO L226 Difference]: Without dead ends: 37784 [2021-11-23 03:40:28,521 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-23 03:40:28,522 INFO L933 BasicCegarLoop]: 3402 mSDtfsCounter, 3630 mSDsluCounter, 7967 mSDsCounter, 0 mSdLazyCounter, 1683 mSolverCounterSat, 2 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 50.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3641 SdHoareTripleChecker+Valid, 10252 SdHoareTripleChecker+Invalid, 1690 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1683 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 51.7s IncrementalHoareTripleChecker+Time [2021-11-23 03:40:28,522 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3641 Valid, 10252 Invalid, 1690 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1683 Invalid, 5 Unknown, 0 Unchecked, 51.7s Time] [2021-11-23 03:40:28,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37784 states. [2021-11-23 03:40:30,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37784 to 37782. [2021-11-23 03:40:30,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37782 states, 24092 states have (on average 1.3338037522829156) internal successors, (32134), 24441 states have internal predecessors, (32134), 10801 states have call successors, (10801), 2894 states have call predecessors, (10801), 2886 states have return successors, (10966), 10617 states have call predecessors, (10966), 10797 states have call successors, (10966) [2021-11-23 03:40:30,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37782 states to 37782 states and 53901 transitions. [2021-11-23 03:40:30,214 INFO L78 Accepts]: Start accepts. Automaton has 37782 states and 53901 transitions. Word has length 1197 [2021-11-23 03:40:30,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:40:30,215 INFO L470 AbstractCegarLoop]: Abstraction has 37782 states and 53901 transitions. [2021-11-23 03:40:30,216 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 2 states have call successors, (126), 3 states have call predecessors, (126), 1 states have return successors, (124), 2 states have call predecessors, (124), 2 states have call successors, (124) [2021-11-23 03:40:30,216 INFO L276 IsEmpty]: Start isEmpty. Operand 37782 states and 53901 transitions. [2021-11-23 03:40:30,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1203 [2021-11-23 03:40:30,247 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:40:30,248 INFO L514 BasicCegarLoop]: trace histogram [114, 110, 110, 110, 110, 110, 110, 5, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:40:30,248 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-23 03:40:30,248 INFO L402 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)] === [2021-11-23 03:40:30,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:40:30,249 INFO L85 PathProgramCache]: Analyzing trace with hash -361439722, now seen corresponding path program 1 times [2021-11-23 03:40:30,249 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:40:30,249 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1906053679] [2021-11-23 03:40:30,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:40:30,250 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:40:30,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:40:31,405 INFO L134 CoverageAnalysis]: Checked inductivity of 48919 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 48911 trivial. 0 not checked. [2021-11-23 03:40:31,406 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:40:31,406 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1906053679] [2021-11-23 03:40:31,406 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1906053679] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:40:31,599 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:40:31,599 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-23 03:40:31,599 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1638844243] [2021-11-23 03:40:31,600 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:40:31,601 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-23 03:40:31,601 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:40:31,601 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-23 03:40:31,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-23 03:40:31,602 INFO L87 Difference]: Start difference. First operand 37782 states and 53901 transitions. Second operand has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 2 states have call successors, (127), 3 states have call predecessors, (127), 1 states have return successors, (125), 2 states have call predecessors, (125), 2 states have call successors, (125) [2021-11-23 03:40:42,450 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.99s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:40:43,534 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:40:44,932 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:40:46,964 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:40:49,021 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:40:51,068 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:40:52,183 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:40:55,788 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-23 03:40:59,119 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:41:00,350 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:41:01,579 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:41:04,438 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:41:05,764 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:41:06,890 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:41:09,711 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:41:12,160 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:41:14,306 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:41:19,530 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2021-11-23 03:41:21,716 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.19s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2021-11-23 03:41:24,144 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-23 03:41:25,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:41:25,997 INFO L93 Difference]: Finished difference Result 37788 states and 53906 transitions. [2021-11-23 03:41:25,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-23 03:41:25,998 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 2 states have call successors, (127), 3 states have call predecessors, (127), 1 states have return successors, (125), 2 states have call predecessors, (125), 2 states have call successors, (125) Word has length 1202 [2021-11-23 03:41:26,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:41:26,211 INFO L225 Difference]: With dead ends: 37788 [2021-11-23 03:41:26,211 INFO L226 Difference]: Without dead ends: 37786 [2021-11-23 03:41:26,225 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-23 03:41:26,226 INFO L933 BasicCegarLoop]: 3397 mSDtfsCounter, 3650 mSDsluCounter, 7922 mSDsCounter, 0 mSdLazyCounter, 1664 mSolverCounterSat, 1 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 51.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3664 SdHoareTripleChecker+Valid, 10213 SdHoareTripleChecker+Invalid, 1675 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1664 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 53.1s IncrementalHoareTripleChecker+Time [2021-11-23 03:41:26,226 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3664 Valid, 10213 Invalid, 1675 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1664 Invalid, 10 Unknown, 0 Unchecked, 53.1s Time] [2021-11-23 03:41:26,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37786 states. [2021-11-23 03:41:27,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37786 to 37786. [2021-11-23 03:41:27,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37786 states, 24095 states have (on average 1.3337621913260012) internal successors, (32137), 24444 states have internal predecessors, (32137), 10801 states have call successors, (10801), 2895 states have call predecessors, (10801), 2887 states have return successors, (10966), 10617 states have call predecessors, (10966), 10797 states have call successors, (10966) [2021-11-23 03:41:28,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37786 states to 37786 states and 53904 transitions. [2021-11-23 03:41:28,023 INFO L78 Accepts]: Start accepts. Automaton has 37786 states and 53904 transitions. Word has length 1202 [2021-11-23 03:41:28,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:41:28,024 INFO L470 AbstractCegarLoop]: Abstraction has 37786 states and 53904 transitions. [2021-11-23 03:41:28,025 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 2 states have call successors, (127), 3 states have call predecessors, (127), 1 states have return successors, (125), 2 states have call predecessors, (125), 2 states have call successors, (125) [2021-11-23 03:41:28,025 INFO L276 IsEmpty]: Start isEmpty. Operand 37786 states and 53904 transitions. [2021-11-23 03:41:28,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1207 [2021-11-23 03:41:28,252 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:41:28,253 INFO L514 BasicCegarLoop]: trace histogram [114, 110, 110, 110, 110, 110, 110, 6, 5, 5, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:41:28,253 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-23 03:41:28,253 INFO L402 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)] === [2021-11-23 03:41:28,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:41:28,254 INFO L85 PathProgramCache]: Analyzing trace with hash -1914963661, now seen corresponding path program 1 times [2021-11-23 03:41:28,254 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:41:28,254 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1933598857] [2021-11-23 03:41:28,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:41:28,254 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:41:28,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:41:29,598 INFO L134 CoverageAnalysis]: Checked inductivity of 48936 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 48926 trivial. 0 not checked. [2021-11-23 03:41:29,599 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:41:29,599 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1933598857] [2021-11-23 03:41:29,599 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1933598857] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:41:29,599 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:41:29,600 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-23 03:41:29,600 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1529317751] [2021-11-23 03:41:29,600 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:41:29,601 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-23 03:41:29,602 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:41:29,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-23 03:41:29,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-23 03:41:29,604 INFO L87 Difference]: Start difference. First operand 37786 states and 53904 transitions. Second operand has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 2 states have call successors, (128), 3 states have call predecessors, (128), 1 states have return successors, (126), 2 states have call predecessors, (126), 2 states have call successors, (126) [2021-11-23 03:41:33,218 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:41:34,730 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:41:35,756 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:41:41,209 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:41:42,553 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:41:44,132 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.58s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:41:46,169 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:41:48,229 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:41:50,280 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:41:51,497 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:41:55,348 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-23 03:41:57,530 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-23 03:42:00,059 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:42:01,605 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:42:03,618 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:42:05,002 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:42:11,803 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:42:13,945 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:42:19,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:42:19,498 INFO L93 Difference]: Finished difference Result 37792 states and 53909 transitions. [2021-11-23 03:42:19,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-23 03:42:19,499 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 2 states have call successors, (128), 3 states have call predecessors, (128), 1 states have return successors, (126), 2 states have call predecessors, (126), 2 states have call successors, (126) Word has length 1206 [2021-11-23 03:42:19,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:42:19,624 INFO L225 Difference]: With dead ends: 37792 [2021-11-23 03:42:19,624 INFO L226 Difference]: Without dead ends: 37790 [2021-11-23 03:42:19,637 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-23 03:42:19,638 INFO L933 BasicCegarLoop]: 3397 mSDtfsCounter, 3651 mSDsluCounter, 7922 mSDsCounter, 0 mSdLazyCounter, 1667 mSolverCounterSat, 1 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 46.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3661 SdHoareTripleChecker+Valid, 10213 SdHoareTripleChecker+Invalid, 1675 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1667 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 48.4s IncrementalHoareTripleChecker+Time [2021-11-23 03:42:19,638 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3661 Valid, 10213 Invalid, 1675 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1667 Invalid, 7 Unknown, 0 Unchecked, 48.4s Time] [2021-11-23 03:42:19,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37790 states. [2021-11-23 03:42:21,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37790 to 37790. [2021-11-23 03:42:21,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37790 states, 24098 states have (on average 1.3337206407170719) internal successors, (32140), 24447 states have internal predecessors, (32140), 10801 states have call successors, (10801), 2896 states have call predecessors, (10801), 2888 states have return successors, (10966), 10617 states have call predecessors, (10966), 10797 states have call successors, (10966) [2021-11-23 03:42:21,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37790 states to 37790 states and 53907 transitions. [2021-11-23 03:42:21,586 INFO L78 Accepts]: Start accepts. Automaton has 37790 states and 53907 transitions. Word has length 1206 [2021-11-23 03:42:21,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:42:21,587 INFO L470 AbstractCegarLoop]: Abstraction has 37790 states and 53907 transitions. [2021-11-23 03:42:21,587 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 2 states have call successors, (128), 3 states have call predecessors, (128), 1 states have return successors, (126), 2 states have call predecessors, (126), 2 states have call successors, (126) [2021-11-23 03:42:21,587 INFO L276 IsEmpty]: Start isEmpty. Operand 37790 states and 53907 transitions. [2021-11-23 03:42:21,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1212 [2021-11-23 03:42:21,608 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:42:21,609 INFO L514 BasicCegarLoop]: trace histogram [114, 110, 110, 110, 110, 110, 110, 7, 6, 6, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:42:21,609 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-11-23 03:42:21,609 INFO L402 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)] === [2021-11-23 03:42:21,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:42:21,610 INFO L85 PathProgramCache]: Analyzing trace with hash -299472611, now seen corresponding path program 1 times [2021-11-23 03:42:21,610 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:42:21,610 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1958448720] [2021-11-23 03:42:21,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:42:21,610 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:42:21,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:42:22,915 INFO L134 CoverageAnalysis]: Checked inductivity of 48958 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 48946 trivial. 0 not checked. [2021-11-23 03:42:22,916 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:42:22,916 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1958448720] [2021-11-23 03:42:22,916 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1958448720] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:42:22,916 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:42:22,916 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-23 03:42:22,917 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2110857514] [2021-11-23 03:42:22,917 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:42:22,918 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-23 03:42:22,918 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:42:22,918 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-23 03:42:22,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-23 03:42:22,919 INFO L87 Difference]: Start difference. First operand 37790 states and 53907 transitions. Second operand has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 2 states have call successors, (129), 3 states have call predecessors, (129), 1 states have return successors, (127), 2 states have call predecessors, (127), 2 states have call successors, (127) [2021-11-23 03:42:27,846 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.71s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:42:34,223 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2021-11-23 03:42:35,784 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.50s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:42:36,911 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:42:39,714 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-23 03:42:41,665 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.95s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:42:43,724 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:42:46,665 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:42:48,185 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:42:50,228 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:42:52,263 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:42:55,976 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-23 03:43:01,002 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:43:02,014 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:43:05,552 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:43:06,982 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:43:08,384 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:43:11,355 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:43:13,473 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []