./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-usb-dvb-usb-dvb-usb-dw2102.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5e519f3a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c4a02e9-214e-4ff1-bc39-49b28ad56c36/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c4a02e9-214e-4ff1-bc39-49b28ad56c36/bin/utaipan-7li7fVZpFI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c4a02e9-214e-4ff1-bc39-49b28ad56c36/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c4a02e9-214e-4ff1-bc39-49b28ad56c36/bin/utaipan-7li7fVZpFI/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-usb-dvb-usb-dvb-usb-dw2102.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c4a02e9-214e-4ff1-bc39-49b28ad56c36/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c4a02e9-214e-4ff1-bc39-49b28ad56c36/bin/utaipan-7li7fVZpFI --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 57970899ca10de02cc3a4434b3e2b7041d723fc550c3fb62d1c86f37c18186c5 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-5e519f3 [2022-11-03 01:54:40,062 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 01:54:40,064 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 01:54:40,109 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 01:54:40,110 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 01:54:40,115 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 01:54:40,117 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 01:54:40,121 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 01:54:40,123 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 01:54:40,130 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 01:54:40,131 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 01:54:40,132 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 01:54:40,133 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 01:54:40,134 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 01:54:40,135 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 01:54:40,136 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 01:54:40,136 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 01:54:40,137 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 01:54:40,139 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 01:54:40,141 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 01:54:40,142 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 01:54:40,144 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 01:54:40,145 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 01:54:40,146 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 01:54:40,149 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 01:54:40,150 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 01:54:40,150 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 01:54:40,151 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 01:54:40,152 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 01:54:40,153 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 01:54:40,153 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 01:54:40,154 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 01:54:40,154 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 01:54:40,155 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 01:54:40,156 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 01:54:40,157 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 01:54:40,157 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 01:54:40,158 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 01:54:40,158 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 01:54:40,159 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 01:54:40,160 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 01:54:40,161 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c4a02e9-214e-4ff1-bc39-49b28ad56c36/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-03 01:54:40,185 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 01:54:40,185 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 01:54:40,186 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 01:54:40,186 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 01:54:40,187 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 01:54:40,187 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 01:54:40,187 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 01:54:40,187 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 01:54:40,188 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 01:54:40,188 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-03 01:54:40,188 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 01:54:40,188 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 01:54:40,189 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-03 01:54:40,189 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-03 01:54:40,189 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 01:54:40,189 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-03 01:54:40,190 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-03 01:54:40,190 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-03 01:54:40,195 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 01:54:40,196 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-03 01:54:40,197 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 01:54:40,197 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-03 01:54:40,197 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 01:54:40,197 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-03 01:54:40,198 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-03 01:54:40,198 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 01:54:40,198 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-03 01:54:40,198 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 01:54:40,199 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 01:54:40,199 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 01:54:40,199 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 01:54:40,200 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-03 01:54:40,200 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 01:54:40,200 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-03 01:54:40,200 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-03 01:54:40,201 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-03 01:54:40,202 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-03 01:54:40,202 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 01:54:40,203 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c4a02e9-214e-4ff1-bc39-49b28ad56c36/bin/utaipan-7li7fVZpFI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c4a02e9-214e-4ff1-bc39-49b28ad56c36/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 57970899ca10de02cc3a4434b3e2b7041d723fc550c3fb62d1c86f37c18186c5 [2022-11-03 01:54:40,541 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 01:54:40,574 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 01:54:40,576 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 01:54:40,578 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 01:54:40,578 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 01:54:40,580 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c4a02e9-214e-4ff1-bc39-49b28ad56c36/bin/utaipan-7li7fVZpFI/../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-usb-dvb-usb-dvb-usb-dw2102.cil.i [2022-11-03 01:54:40,644 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c4a02e9-214e-4ff1-bc39-49b28ad56c36/bin/utaipan-7li7fVZpFI/data/ffeb02dea/dd2846a7475a493d9458ce17ba72416a/FLAGf5321a0a7 [2022-11-03 01:54:41,709 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 01:54:41,709 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c4a02e9-214e-4ff1-bc39-49b28ad56c36/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-usb-dvb-usb-dvb-usb-dw2102.cil.i [2022-11-03 01:54:41,780 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c4a02e9-214e-4ff1-bc39-49b28ad56c36/bin/utaipan-7li7fVZpFI/data/ffeb02dea/dd2846a7475a493d9458ce17ba72416a/FLAGf5321a0a7 [2022-11-03 01:54:41,954 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c4a02e9-214e-4ff1-bc39-49b28ad56c36/bin/utaipan-7li7fVZpFI/data/ffeb02dea/dd2846a7475a493d9458ce17ba72416a [2022-11-03 01:54:41,956 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 01:54:41,958 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 01:54:41,959 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 01:54:41,959 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 01:54:41,963 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 01:54:41,964 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 01:54:41" (1/1) ... [2022-11-03 01:54:41,965 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5bd5b0f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:54:41, skipping insertion in model container [2022-11-03 01:54:41,965 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 01:54:41" (1/1) ... [2022-11-03 01:54:41,972 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 01:54:42,179 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 01:54:45,630 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_6c4a02e9-214e-4ff1-bc39-49b28ad56c36/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-usb-dvb-usb-dvb-usb-dw2102.cil.i[539011,539024] [2022-11-03 01:54:45,634 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_6c4a02e9-214e-4ff1-bc39-49b28ad56c36/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-usb-dvb-usb-dvb-usb-dw2102.cil.i[539177,539190] [2022-11-03 01:54:45,634 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_6c4a02e9-214e-4ff1-bc39-49b28ad56c36/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-usb-dvb-usb-dvb-usb-dw2102.cil.i[539341,539354] [2022-11-03 01:54:45,635 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_6c4a02e9-214e-4ff1-bc39-49b28ad56c36/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-usb-dvb-usb-dvb-usb-dw2102.cil.i[539506,539519] [2022-11-03 01:54:45,639 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 01:54:45,754 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 01:54:46,413 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_6c4a02e9-214e-4ff1-bc39-49b28ad56c36/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-usb-dvb-usb-dvb-usb-dw2102.cil.i[539011,539024] [2022-11-03 01:54:46,413 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_6c4a02e9-214e-4ff1-bc39-49b28ad56c36/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-usb-dvb-usb-dvb-usb-dw2102.cil.i[539177,539190] [2022-11-03 01:54:46,414 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_6c4a02e9-214e-4ff1-bc39-49b28ad56c36/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-usb-dvb-usb-dvb-usb-dw2102.cil.i[539341,539354] [2022-11-03 01:54:46,414 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_6c4a02e9-214e-4ff1-bc39-49b28ad56c36/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-usb-dvb-usb-dvb-usb-dw2102.cil.i[539506,539519] [2022-11-03 01:54:46,417 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 01:54:46,715 INFO L208 MainTranslator]: Completed translation [2022-11-03 01:54:46,716 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:54:46 WrapperNode [2022-11-03 01:54:46,716 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 01:54:46,717 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 01:54:46,717 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 01:54:46,718 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 01:54:46,725 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:54:46" (1/1) ... [2022-11-03 01:54:46,866 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:54:46" (1/1) ... [2022-11-03 01:54:47,134 INFO L138 Inliner]: procedures = 374, calls = 3972, calls flagged for inlining = 239, calls inlined = 225, statements flattened = 7966 [2022-11-03 01:54:47,134 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 01:54:47,135 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 01:54:47,135 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 01:54:47,136 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 01:54:47,145 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:54:46" (1/1) ... [2022-11-03 01:54:47,146 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:54:46" (1/1) ... [2022-11-03 01:54:47,190 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:54:46" (1/1) ... [2022-11-03 01:54:47,191 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:54:46" (1/1) ... [2022-11-03 01:54:47,430 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:54:46" (1/1) ... [2022-11-03 01:54:47,547 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:54:46" (1/1) ... [2022-11-03 01:54:47,604 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:54:46" (1/1) ... [2022-11-03 01:54:47,629 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:54:46" (1/1) ... [2022-11-03 01:54:47,675 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 01:54:47,676 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 01:54:47,676 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 01:54:47,676 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 01:54:47,677 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:54:46" (1/1) ... [2022-11-03 01:54:47,685 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 01:54:47,696 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c4a02e9-214e-4ff1-bc39-49b28ad56c36/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 01:54:47,716 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c4a02e9-214e-4ff1-bc39-49b28ad56c36/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 01:54:47,743 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c4a02e9-214e-4ff1-bc39-49b28ad56c36/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 01:54:47,767 INFO L130 BoogieDeclarations]: Found specification of procedure dw2104_frontend_attach [2022-11-03 01:54:47,768 INFO L138 BoogieDeclarations]: Found implementation of procedure dw2104_frontend_attach [2022-11-03 01:54:47,768 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_usb_device_exit [2022-11-03 01:54:47,768 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_usb_device_exit [2022-11-03 01:54:47,768 INFO L130 BoogieDeclarations]: Found specification of procedure dw2104_i2c_transfer [2022-11-03 01:54:47,768 INFO L138 BoogieDeclarations]: Found implementation of procedure dw2104_i2c_transfer [2022-11-03 01:54:47,769 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2022-11-03 01:54:47,769 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2022-11-03 01:54:47,769 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_instance_release_13_4 [2022-11-03 01:54:47,769 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_instance_release_13_4 [2022-11-03 01:54:47,769 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-03 01:54:47,769 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_usb_device_init [2022-11-03 01:54:47,770 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_usb_device_init [2022-11-03 01:54:47,770 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-03 01:54:47,770 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-03 01:54:47,770 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-03 01:54:47,770 INFO L130 BoogieDeclarations]: Found specification of procedure dw3101_i2c_transfer [2022-11-03 01:54:47,770 INFO L138 BoogieDeclarations]: Found implementation of procedure dw3101_i2c_transfer [2022-11-03 01:54:47,771 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~$Pointer$ [2022-11-03 01:54:47,771 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~$Pointer$ [2022-11-03 01:54:47,771 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_get_adapdata [2022-11-03 01:54:47,771 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_get_adapdata [2022-11-03 01:54:47,771 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-03 01:54:47,771 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-03 01:54:47,772 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_i2c_mutex_of_dvb_usb_device [2022-11-03 01:54:47,772 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_i2c_mutex_of_dvb_usb_device [2022-11-03 01:54:47,772 INFO L130 BoogieDeclarations]: Found specification of procedure rc_keydown [2022-11-03 01:54:47,773 INFO L138 BoogieDeclarations]: Found implementation of procedure rc_keydown [2022-11-03 01:54:47,773 INFO L130 BoogieDeclarations]: Found specification of procedure su3000_power_ctrl [2022-11-03 01:54:47,773 INFO L138 BoogieDeclarations]: Found implementation of procedure su3000_power_ctrl [2022-11-03 01:54:47,773 INFO L130 BoogieDeclarations]: Found specification of procedure __symbol_put [2022-11-03 01:54:47,774 INFO L138 BoogieDeclarations]: Found implementation of procedure __symbol_put [2022-11-03 01:54:47,774 INFO L130 BoogieDeclarations]: Found specification of procedure dw3101_tuner_attach [2022-11-03 01:54:47,774 INFO L138 BoogieDeclarations]: Found implementation of procedure dw3101_tuner_attach [2022-11-03 01:54:47,774 INFO L130 BoogieDeclarations]: Found specification of procedure zl100313_frontend_attach [2022-11-03 01:54:47,774 INFO L138 BoogieDeclarations]: Found implementation of procedure zl100313_frontend_attach [2022-11-03 01:54:47,775 INFO L130 BoogieDeclarations]: Found specification of procedure dw2102_i2c_transfer [2022-11-03 01:54:47,775 INFO L138 BoogieDeclarations]: Found implementation of procedure dw2102_i2c_transfer [2022-11-03 01:54:47,775 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-03 01:54:47,775 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_dw2102_driver_exit_17_2 [2022-11-03 01:54:47,776 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_dw2102_driver_exit_17_2 [2022-11-03 01:54:47,776 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-03 01:54:47,776 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-03 01:54:47,777 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-11-03 01:54:47,778 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~int [2022-11-03 01:54:47,778 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~int [2022-11-03 01:54:47,778 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-03 01:54:47,778 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-03 01:54:47,778 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exit [2022-11-03 01:54:47,778 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exit [2022-11-03 01:54:47,779 INFO L130 BoogieDeclarations]: Found specification of procedure su3000_streaming_ctrl [2022-11-03 01:54:47,779 INFO L138 BoogieDeclarations]: Found implementation of procedure su3000_streaming_ctrl [2022-11-03 01:54:47,779 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~int~TO~$Pointer$ [2022-11-03 01:54:47,780 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~int~TO~$Pointer$ [2022-11-03 01:54:47,780 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-03 01:54:47,780 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-03 01:54:47,780 INFO L130 BoogieDeclarations]: Found specification of procedure dw3101_frontend_attach [2022-11-03 01:54:47,781 INFO L138 BoogieDeclarations]: Found implementation of procedure dw3101_frontend_attach [2022-11-03 01:54:47,781 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-11-03 01:54:47,781 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-11-03 01:54:47,781 INFO L130 BoogieDeclarations]: Found specification of procedure su3000_i2c_transfer [2022-11-03 01:54:47,781 INFO L138 BoogieDeclarations]: Found implementation of procedure su3000_i2c_transfer [2022-11-03 01:54:47,781 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-11-03 01:54:47,782 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-11-03 01:54:47,782 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-03 01:54:47,783 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~int [2022-11-03 01:54:47,783 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~int [2022-11-03 01:54:47,783 INFO L130 BoogieDeclarations]: Found specification of procedure dw210x_op_rw [2022-11-03 01:54:47,783 INFO L138 BoogieDeclarations]: Found implementation of procedure dw210x_op_rw [2022-11-03 01:54:47,783 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-03 01:54:47,783 INFO L130 BoogieDeclarations]: Found specification of procedure su3000_frontend_attach [2022-11-03 01:54:47,784 INFO L138 BoogieDeclarations]: Found implementation of procedure su3000_frontend_attach [2022-11-03 01:54:47,784 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-11-03 01:54:47,784 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-11-03 01:54:47,784 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_usb_generic_rw [2022-11-03 01:54:47,784 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_usb_generic_rw [2022-11-03 01:54:47,785 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-03 01:54:47,785 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2022-11-03 01:54:47,785 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2022-11-03 01:54:47,785 INFO L130 BoogieDeclarations]: Found specification of procedure dw2102_serit_i2c_transfer [2022-11-03 01:54:47,786 INFO L138 BoogieDeclarations]: Found implementation of procedure dw2102_serit_i2c_transfer [2022-11-03 01:54:47,786 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-03 01:54:47,787 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-03 01:54:47,787 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~$Pointer$ [2022-11-03 01:54:47,787 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~$Pointer$ [2022-11-03 01:54:47,787 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2022-11-03 01:54:47,788 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2022-11-03 01:54:47,788 INFO L130 BoogieDeclarations]: Found specification of procedure stv0299_writereg [2022-11-03 01:54:47,788 INFO L138 BoogieDeclarations]: Found implementation of procedure stv0299_writereg [2022-11-03 01:54:47,788 INFO L130 BoogieDeclarations]: Found specification of procedure t220_frontend_attach [2022-11-03 01:54:47,788 INFO L138 BoogieDeclarations]: Found implementation of procedure t220_frontend_attach [2022-11-03 01:54:47,789 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-03 01:54:47,789 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-03 01:54:47,789 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2022-11-03 01:54:47,789 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2022-11-03 01:54:47,789 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-03 01:54:47,789 INFO L130 BoogieDeclarations]: Found specification of procedure dw2102_load_firmware [2022-11-03 01:54:47,790 INFO L138 BoogieDeclarations]: Found implementation of procedure dw2102_load_firmware [2022-11-03 01:54:47,790 INFO L130 BoogieDeclarations]: Found specification of procedure dw2102_rc_query [2022-11-03 01:54:47,790 INFO L138 BoogieDeclarations]: Found implementation of procedure dw2102_rc_query [2022-11-03 01:54:47,790 INFO L130 BoogieDeclarations]: Found specification of procedure s6x0_i2c_transfer [2022-11-03 01:54:47,791 INFO L138 BoogieDeclarations]: Found implementation of procedure s6x0_i2c_transfer [2022-11-03 01:54:47,791 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_transfer [2022-11-03 01:54:47,791 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_transfer [2022-11-03 01:54:47,792 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-03 01:54:47,794 INFO L130 BoogieDeclarations]: Found specification of procedure dw2102_frontend_attach [2022-11-03 01:54:47,795 INFO L138 BoogieDeclarations]: Found implementation of procedure dw2102_frontend_attach [2022-11-03 01:54:47,795 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~X~$Pointer$~TO~int [2022-11-03 01:54:47,795 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~X~$Pointer$~TO~int [2022-11-03 01:54:47,795 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2022-11-03 01:54:47,796 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2022-11-03 01:54:47,796 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-03 01:54:47,797 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~$Pointer$~TO~int [2022-11-03 01:54:47,797 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~$Pointer$~TO~int [2022-11-03 01:54:47,803 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-03 01:54:47,803 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-03 01:54:47,803 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-03 01:54:47,804 INFO L130 BoogieDeclarations]: Found specification of procedure su3000_read_mac_address [2022-11-03 01:54:47,804 INFO L138 BoogieDeclarations]: Found implementation of procedure su3000_read_mac_address [2022-11-03 01:54:47,804 INFO L130 BoogieDeclarations]: Found specification of procedure dw2102_probe [2022-11-03 01:54:47,804 INFO L138 BoogieDeclarations]: Found implementation of procedure dw2102_probe [2022-11-03 01:54:47,804 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-11-03 01:54:47,804 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-11-03 01:54:47,804 INFO L130 BoogieDeclarations]: Found specification of procedure dw210x_read_mac_address [2022-11-03 01:54:47,805 INFO L138 BoogieDeclarations]: Found implementation of procedure dw210x_read_mac_address [2022-11-03 01:54:47,805 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~$Pointer$~TO~$Pointer$ [2022-11-03 01:54:47,805 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~$Pointer$~TO~$Pointer$ [2022-11-03 01:54:47,805 INFO L130 BoogieDeclarations]: Found specification of procedure __symbol_get [2022-11-03 01:54:47,805 INFO L138 BoogieDeclarations]: Found implementation of procedure __symbol_get [2022-11-03 01:54:47,805 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-11-03 01:54:47,805 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-11-03 01:54:47,806 INFO L130 BoogieDeclarations]: Found specification of procedure su3000_rc_query [2022-11-03 01:54:47,806 INFO L138 BoogieDeclarations]: Found implementation of procedure su3000_rc_query [2022-11-03 01:54:47,806 INFO L130 BoogieDeclarations]: Found specification of procedure kmemdup [2022-11-03 01:54:47,806 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemdup [2022-11-03 01:54:47,806 INFO L130 BoogieDeclarations]: Found specification of procedure dw210x_i2c_func [2022-11-03 01:54:47,806 INFO L138 BoogieDeclarations]: Found implementation of procedure dw210x_i2c_func [2022-11-03 01:54:47,806 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-11-03 01:54:47,807 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-11-03 01:54:47,807 INFO L130 BoogieDeclarations]: Found specification of procedure s6x0_read_mac_address [2022-11-03 01:54:47,807 INFO L138 BoogieDeclarations]: Found implementation of procedure s6x0_read_mac_address [2022-11-03 01:54:47,807 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-03 01:54:47,807 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-11-03 01:54:47,807 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-11-03 01:54:47,807 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_or_killable_i2c_mutex_of_dvb_usb_device [2022-11-03 01:54:47,808 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_or_killable_i2c_mutex_of_dvb_usb_device [2022-11-03 01:54:47,808 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 01:54:47,808 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 01:54:47,808 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~$Pointer$ [2022-11-03 01:54:47,808 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~$Pointer$ [2022-11-03 01:54:47,808 INFO L130 BoogieDeclarations]: Found specification of procedure su3000_identify_state [2022-11-03 01:54:47,808 INFO L138 BoogieDeclarations]: Found implementation of procedure su3000_identify_state [2022-11-03 01:54:49,071 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 01:54:49,075 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 01:55:06,428 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-03 02:06:45,396 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-11-03 02:06:45,516 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 02:06:49,016 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 02:06:49,016 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-03 02:06:49,021 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:06:49 BoogieIcfgContainer [2022-11-03 02:06:49,022 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 02:06:49,024 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 02:06:49,024 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 02:06:49,028 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 02:06:49,028 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 01:54:41" (1/3) ... [2022-11-03 02:06:49,029 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72ed26cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 02:06:49, skipping insertion in model container [2022-11-03 02:06:49,029 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:54:46" (2/3) ... [2022-11-03 02:06:49,029 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72ed26cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 02:06:49, skipping insertion in model container [2022-11-03 02:06:49,029 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:06:49" (3/3) ... [2022-11-03 02:06:49,031 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-usb-dvb-usb-dvb-usb-dw2102.cil.i [2022-11-03 02:06:49,049 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 02:06:49,050 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-11-03 02:06:49,146 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 02:06:49,156 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@7c41a2bd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 02:06:49,156 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-11-03 02:06:49,168 INFO L276 IsEmpty]: Start isEmpty. Operand has 2103 states, 1380 states have (on average 1.3869565217391304) internal successors, (1914), 1411 states have internal predecessors, (1914), 653 states have call successors, (653), 68 states have call predecessors, (653), 67 states have return successors, (647), 647 states have call predecessors, (647), 647 states have call successors, (647) [2022-11-03 02:06:49,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1066 [2022-11-03 02:06:49,256 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:06:49,258 INFO L195 NwaCegarLoop]: trace histogram [105, 104, 104, 104, 104, 104, 104, 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] [2022-11-03 02:06:49,259 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-03 02:06:49,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:06:49,266 INFO L85 PathProgramCache]: Analyzing trace with hash 1382441658, now seen corresponding path program 1 times [2022-11-03 02:06:49,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:06:49,278 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [136309337] [2022-11-03 02:06:49,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:06:49,279 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:06:50,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:06:52,982 INFO L134 CoverageAnalysis]: Checked inductivity of 43059 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 43059 trivial. 0 not checked. [2022-11-03 02:06:52,982 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:06:52,983 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [136309337] [2022-11-03 02:06:52,983 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [136309337] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:06:52,984 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:06:52,985 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:06:52,990 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [390309192] [2022-11-03 02:06:52,991 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:06:52,999 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:06:52,999 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:06:53,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:06:53,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:06:53,042 INFO L87 Difference]: Start difference. First operand has 2103 states, 1380 states have (on average 1.3869565217391304) internal successors, (1914), 1411 states have internal predecessors, (1914), 653 states have call successors, (653), 68 states have call predecessors, (653), 67 states have return successors, (647), 647 states have call predecessors, (647), 647 states have call successors, (647) Second operand has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 3 states have call successors, (111), 2 states have call predecessors, (111), 1 states have return successors, (109), 3 states have call predecessors, (109), 3 states have call successors, (109) [2022-11-03 02:06:55,270 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.21s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:07:00,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:07:00,655 INFO L93 Difference]: Finished difference Result 5817 states and 9068 transitions. [2022-11-03 02:07:00,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:07:00,658 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 3 states have call successors, (111), 2 states have call predecessors, (111), 1 states have return successors, (109), 3 states have call predecessors, (109), 3 states have call successors, (109) Word has length 1065 [2022-11-03 02:07:00,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:07:00,708 INFO L225 Difference]: With dead ends: 5817 [2022-11-03 02:07:00,708 INFO L226 Difference]: Without dead ends: 3913 [2022-11-03 02:07:00,728 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:07:00,731 INFO L413 NwaCegarLoop]: 3336 mSDtfsCounter, 2816 mSDsluCounter, 3151 mSDsCounter, 0 mSdLazyCounter, 804 mSolverCounterSat, 11 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2816 SdHoareTripleChecker+Valid, 6113 SdHoareTripleChecker+Invalid, 816 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 804 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.2s IncrementalHoareTripleChecker+Time [2022-11-03 02:07:00,732 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2816 Valid, 6113 Invalid, 816 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 804 Invalid, 1 Unknown, 0 Unchecked, 7.2s Time] [2022-11-03 02:07:00,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3913 states. [2022-11-03 02:07:01,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3913 to 3909. [2022-11-03 02:07:01,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3909 states, 2614 states have (on average 1.3982402448355011) internal successors, (3655), 2675 states have internal predecessors, (3655), 1162 states have call successors, (1162), 131 states have call predecessors, (1162), 130 states have return successors, (1158), 1158 states have call predecessors, (1158), 1158 states have call successors, (1158) [2022-11-03 02:07:01,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3909 states to 3909 states and 5975 transitions. [2022-11-03 02:07:01,090 INFO L78 Accepts]: Start accepts. Automaton has 3909 states and 5975 transitions. Word has length 1065 [2022-11-03 02:07:01,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:07:01,098 INFO L495 AbstractCegarLoop]: Abstraction has 3909 states and 5975 transitions. [2022-11-03 02:07:01,099 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 3 states have call successors, (111), 2 states have call predecessors, (111), 1 states have return successors, (109), 3 states have call predecessors, (109), 3 states have call successors, (109) [2022-11-03 02:07:01,099 INFO L276 IsEmpty]: Start isEmpty. Operand 3909 states and 5975 transitions. [2022-11-03 02:07:01,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1070 [2022-11-03 02:07:01,154 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:07:01,155 INFO L195 NwaCegarLoop]: trace histogram [105, 104, 104, 104, 104, 104, 104, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:07:01,155 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-03 02:07:01,156 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-03 02:07:01,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:07:01,157 INFO L85 PathProgramCache]: Analyzing trace with hash 122745366, now seen corresponding path program 1 times [2022-11-03 02:07:01,157 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:07:01,157 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1343213620] [2022-11-03 02:07:01,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:07:01,158 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:07:01,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:07:03,135 INFO L134 CoverageAnalysis]: Checked inductivity of 43056 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 43056 trivial. 0 not checked. [2022-11-03 02:07:03,138 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:07:03,139 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1343213620] [2022-11-03 02:07:03,140 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1343213620] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:07:03,141 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:07:03,142 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:07:03,142 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [942882005] [2022-11-03 02:07:03,142 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:07:03,146 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:07:03,150 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:07:03,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:07:03,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:07:03,151 INFO L87 Difference]: Start difference. First operand 3909 states and 5975 transitions. Second operand has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 3 states have call successors, (110), 2 states have call predecessors, (110), 1 states have return successors, (107), 3 states have call predecessors, (107), 3 states have call successors, (107) [2022-11-03 02:07:05,315 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:07:11,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:07:11,007 INFO L93 Difference]: Finished difference Result 9401 states and 14366 transitions. [2022-11-03 02:07:11,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:07:11,008 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 3 states have call successors, (110), 2 states have call predecessors, (110), 1 states have return successors, (107), 3 states have call predecessors, (107), 3 states have call successors, (107) Word has length 1069 [2022-11-03 02:07:11,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:07:11,057 INFO L225 Difference]: With dead ends: 9401 [2022-11-03 02:07:11,058 INFO L226 Difference]: Without dead ends: 5701 [2022-11-03 02:07:11,085 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:07:11,086 INFO L413 NwaCegarLoop]: 3331 mSDtfsCounter, 2784 mSDsluCounter, 3145 mSDsCounter, 0 mSdLazyCounter, 809 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2784 SdHoareTripleChecker+Valid, 6102 SdHoareTripleChecker+Invalid, 817 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 809 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.5s IncrementalHoareTripleChecker+Time [2022-11-03 02:07:11,087 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2784 Valid, 6102 Invalid, 817 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 809 Invalid, 1 Unknown, 0 Unchecked, 7.5s Time] [2022-11-03 02:07:11,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5701 states. [2022-11-03 02:07:11,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5701 to 5682. [2022-11-03 02:07:11,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5682 states, 3814 states have (on average 1.401415836392239) internal successors, (5345), 3908 states have internal predecessors, (5345), 1667 states have call successors, (1667), 199 states have call predecessors, (1667), 198 states have return successors, (1663), 1658 states have call predecessors, (1663), 1663 states have call successors, (1663) [2022-11-03 02:07:11,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5682 states to 5682 states and 8675 transitions. [2022-11-03 02:07:11,422 INFO L78 Accepts]: Start accepts. Automaton has 5682 states and 8675 transitions. Word has length 1069 [2022-11-03 02:07:11,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:07:11,425 INFO L495 AbstractCegarLoop]: Abstraction has 5682 states and 8675 transitions. [2022-11-03 02:07:11,425 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 3 states have call successors, (110), 2 states have call predecessors, (110), 1 states have return successors, (107), 3 states have call predecessors, (107), 3 states have call successors, (107) [2022-11-03 02:07:11,426 INFO L276 IsEmpty]: Start isEmpty. Operand 5682 states and 8675 transitions. [2022-11-03 02:07:11,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1072 [2022-11-03 02:07:11,442 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:07:11,442 INFO L195 NwaCegarLoop]: trace histogram [105, 104, 104, 104, 104, 104, 104, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:07:11,443 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-03 02:07:11,443 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-03 02:07:11,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:07:11,453 INFO L85 PathProgramCache]: Analyzing trace with hash -131291127, now seen corresponding path program 1 times [2022-11-03 02:07:11,453 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:07:11,454 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [740523633] [2022-11-03 02:07:11,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:07:11,454 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:07:12,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:07:13,401 INFO L134 CoverageAnalysis]: Checked inductivity of 43056 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 43056 trivial. 0 not checked. [2022-11-03 02:07:13,403 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:07:13,403 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [740523633] [2022-11-03 02:07:13,403 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [740523633] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:07:13,404 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:07:13,404 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:07:13,404 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2030961090] [2022-11-03 02:07:13,404 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:07:13,406 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:07:13,406 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:07:13,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:07:13,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:07:13,408 INFO L87 Difference]: Start difference. First operand 5682 states and 8675 transitions. Second operand has 3 states, 3 states have (on average 44.0) internal successors, (132), 3 states have internal predecessors, (132), 3 states have call successors, (110), 2 states have call predecessors, (110), 1 states have return successors, (107), 3 states have call predecessors, (107), 3 states have call successors, (107) [2022-11-03 02:07:15,579 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:07:21,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:07:21,199 INFO L93 Difference]: Finished difference Result 14726 states and 22480 transitions. [2022-11-03 02:07:21,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:07:21,200 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 3 states have internal predecessors, (132), 3 states have call successors, (110), 2 states have call predecessors, (110), 1 states have return successors, (107), 3 states have call predecessors, (107), 3 states have call successors, (107) Word has length 1071 [2022-11-03 02:07:21,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:07:21,272 INFO L225 Difference]: With dead ends: 14726 [2022-11-03 02:07:21,272 INFO L226 Difference]: Without dead ends: 9253 [2022-11-03 02:07:21,314 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:07:21,315 INFO L413 NwaCegarLoop]: 3372 mSDtfsCounter, 2785 mSDsluCounter, 3145 mSDsCounter, 0 mSdLazyCounter, 820 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2785 SdHoareTripleChecker+Valid, 6145 SdHoareTripleChecker+Invalid, 828 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 820 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.4s IncrementalHoareTripleChecker+Time [2022-11-03 02:07:21,316 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2785 Valid, 6145 Invalid, 828 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 820 Invalid, 1 Unknown, 0 Unchecked, 7.4s Time] [2022-11-03 02:07:21,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9253 states. [2022-11-03 02:07:21,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9253 to 9234. [2022-11-03 02:07:21,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9234 states, 6220 states have (on average 1.4041800643086817) internal successors, (8734), 6380 states have internal predecessors, (8734), 2677 states have call successors, (2677), 335 states have call predecessors, (2677), 334 states have return successors, (2673), 2658 states have call predecessors, (2673), 2673 states have call successors, (2673) [2022-11-03 02:07:21,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9234 states to 9234 states and 14084 transitions. [2022-11-03 02:07:21,872 INFO L78 Accepts]: Start accepts. Automaton has 9234 states and 14084 transitions. Word has length 1071 [2022-11-03 02:07:21,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:07:21,874 INFO L495 AbstractCegarLoop]: Abstraction has 9234 states and 14084 transitions. [2022-11-03 02:07:21,875 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 3 states have internal predecessors, (132), 3 states have call successors, (110), 2 states have call predecessors, (110), 1 states have return successors, (107), 3 states have call predecessors, (107), 3 states have call successors, (107) [2022-11-03 02:07:21,875 INFO L276 IsEmpty]: Start isEmpty. Operand 9234 states and 14084 transitions. [2022-11-03 02:07:21,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1071 [2022-11-03 02:07:21,890 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:07:21,891 INFO L195 NwaCegarLoop]: trace histogram [105, 104, 104, 104, 104, 104, 104, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:07:21,891 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-03 02:07:21,891 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-03 02:07:21,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:07:21,895 INFO L85 PathProgramCache]: Analyzing trace with hash 1476955601, now seen corresponding path program 1 times [2022-11-03 02:07:21,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:07:21,896 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2094721701] [2022-11-03 02:07:21,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:07:21,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:07:22,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:07:23,515 INFO L134 CoverageAnalysis]: Checked inductivity of 43056 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 43056 trivial. 0 not checked. [2022-11-03 02:07:23,516 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:07:23,516 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2094721701] [2022-11-03 02:07:23,516 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2094721701] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:07:23,516 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:07:23,517 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:07:23,517 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2013133169] [2022-11-03 02:07:23,517 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:07:23,518 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:07:23,518 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:07:23,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:07:23,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:07:23,519 INFO L87 Difference]: Start difference. First operand 9234 states and 14084 transitions. Second operand has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 3 states have internal predecessors, (131), 3 states have call successors, (110), 2 states have call predecessors, (110), 1 states have return successors, (107), 3 states have call predecessors, (107), 3 states have call successors, (107) [2022-11-03 02:07:25,656 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:07:31,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:07:31,004 INFO L93 Difference]: Finished difference Result 25326 states and 38623 transitions. [2022-11-03 02:07:31,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:07:31,005 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 3 states have internal predecessors, (131), 3 states have call successors, (110), 2 states have call predecessors, (110), 1 states have return successors, (107), 3 states have call predecessors, (107), 3 states have call successors, (107) Word has length 1070 [2022-11-03 02:07:31,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:07:31,116 INFO L225 Difference]: With dead ends: 25326 [2022-11-03 02:07:31,116 INFO L226 Difference]: Without dead ends: 16301 [2022-11-03 02:07:31,173 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:07:31,174 INFO L413 NwaCegarLoop]: 3419 mSDtfsCounter, 2783 mSDsluCounter, 3145 mSDsCounter, 0 mSdLazyCounter, 832 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2783 SdHoareTripleChecker+Valid, 6190 SdHoareTripleChecker+Invalid, 840 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 832 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.0s IncrementalHoareTripleChecker+Time [2022-11-03 02:07:31,174 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2783 Valid, 6190 Invalid, 840 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 832 Invalid, 1 Unknown, 0 Unchecked, 7.0s Time] [2022-11-03 02:07:31,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16301 states. [2022-11-03 02:07:31,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16301 to 16282. [2022-11-03 02:07:31,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16282 states, 10992 states have (on average 1.4055676855895196) internal successors, (15450), 11284 states have internal predecessors, (15450), 4681 states have call successors, (4681), 607 states have call predecessors, (4681), 606 states have return successors, (4677), 4642 states have call predecessors, (4677), 4677 states have call successors, (4677) [2022-11-03 02:07:32,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16282 states to 16282 states and 24808 transitions. [2022-11-03 02:07:32,064 INFO L78 Accepts]: Start accepts. Automaton has 16282 states and 24808 transitions. Word has length 1070 [2022-11-03 02:07:32,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:07:32,065 INFO L495 AbstractCegarLoop]: Abstraction has 16282 states and 24808 transitions. [2022-11-03 02:07:32,066 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 3 states have internal predecessors, (131), 3 states have call successors, (110), 2 states have call predecessors, (110), 1 states have return successors, (107), 3 states have call predecessors, (107), 3 states have call successors, (107) [2022-11-03 02:07:32,066 INFO L276 IsEmpty]: Start isEmpty. Operand 16282 states and 24808 transitions. [2022-11-03 02:07:32,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1073 [2022-11-03 02:07:32,081 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:07:32,082 INFO L195 NwaCegarLoop]: trace histogram [105, 104, 104, 104, 104, 104, 104, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:07:32,082 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-03 02:07:32,082 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-03 02:07:32,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:07:32,083 INFO L85 PathProgramCache]: Analyzing trace with hash -1016460577, now seen corresponding path program 1 times [2022-11-03 02:07:32,083 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:07:32,083 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1981918821] [2022-11-03 02:07:32,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:07:32,084 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:07:32,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:07:33,742 INFO L134 CoverageAnalysis]: Checked inductivity of 43056 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 43056 trivial. 0 not checked. [2022-11-03 02:07:33,742 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:07:33,742 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1981918821] [2022-11-03 02:07:33,742 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1981918821] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:07:33,743 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:07:33,743 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:07:33,743 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [628055485] [2022-11-03 02:07:33,743 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:07:33,744 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:07:33,745 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:07:33,745 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:07:33,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:07:33,746 INFO L87 Difference]: Start difference. First operand 16282 states and 24808 transitions. Second operand has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 3 states have call successors, (110), 2 states have call predecessors, (110), 1 states have return successors, (107), 3 states have call predecessors, (107), 3 states have call successors, (107) [2022-11-03 02:07:35,931 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:07:41,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:07:41,817 INFO L93 Difference]: Finished difference Result 46326 states and 70569 transitions. [2022-11-03 02:07:41,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:07:41,818 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 3 states have call successors, (110), 2 states have call predecessors, (110), 1 states have return successors, (107), 3 states have call predecessors, (107), 3 states have call successors, (107) Word has length 1072 [2022-11-03 02:07:41,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:07:42,025 INFO L225 Difference]: With dead ends: 46326 [2022-11-03 02:07:42,025 INFO L226 Difference]: Without dead ends: 30253 [2022-11-03 02:07:42,136 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:07:42,139 INFO L413 NwaCegarLoop]: 3480 mSDtfsCounter, 2781 mSDsluCounter, 3145 mSDsCounter, 0 mSdLazyCounter, 855 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2781 SdHoareTripleChecker+Valid, 6251 SdHoareTripleChecker+Invalid, 863 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 855 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.0s IncrementalHoareTripleChecker+Time [2022-11-03 02:07:42,141 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2781 Valid, 6251 Invalid, 863 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 855 Invalid, 1 Unknown, 0 Unchecked, 7.0s Time] [2022-11-03 02:07:42,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30253 states. [2022-11-03 02:07:44,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30253 to 30234. [2022-11-03 02:07:44,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30234 states, 20440 states have (on average 1.405675146771037) internal successors, (28732), 20996 states have internal predecessors, (28732), 8641 states have call successors, (8641), 1151 states have call predecessors, (8641), 1150 states have return successors, (8637), 8562 states have call predecessors, (8637), 8637 states have call successors, (8637) [2022-11-03 02:07:44,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30234 states to 30234 states and 46010 transitions. [2022-11-03 02:07:44,780 INFO L78 Accepts]: Start accepts. Automaton has 30234 states and 46010 transitions. Word has length 1072 [2022-11-03 02:07:44,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:07:44,782 INFO L495 AbstractCegarLoop]: Abstraction has 30234 states and 46010 transitions. [2022-11-03 02:07:44,782 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 3 states have call successors, (110), 2 states have call predecessors, (110), 1 states have return successors, (107), 3 states have call predecessors, (107), 3 states have call successors, (107) [2022-11-03 02:07:44,783 INFO L276 IsEmpty]: Start isEmpty. Operand 30234 states and 46010 transitions. [2022-11-03 02:07:44,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1074 [2022-11-03 02:07:44,798 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:07:44,798 INFO L195 NwaCegarLoop]: trace histogram [105, 104, 104, 104, 104, 104, 104, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:07:44,798 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-03 02:07:44,799 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-03 02:07:44,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:07:44,800 INFO L85 PathProgramCache]: Analyzing trace with hash -1738565183, now seen corresponding path program 1 times [2022-11-03 02:07:44,800 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:07:44,800 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1476933760] [2022-11-03 02:07:44,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:07:44,800 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:07:45,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:07:47,091 INFO L134 CoverageAnalysis]: Checked inductivity of 43056 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 43056 trivial. 0 not checked. [2022-11-03 02:07:47,092 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:07:47,092 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1476933760] [2022-11-03 02:07:47,092 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1476933760] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:07:47,093 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:07:47,093 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:07:47,093 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1163775759] [2022-11-03 02:07:47,094 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:07:47,095 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:07:47,095 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:07:47,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:07:47,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:07:47,096 INFO L87 Difference]: Start difference. First operand 30234 states and 46010 transitions. Second operand has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 3 states have call successors, (110), 2 states have call predecessors, (110), 1 states have return successors, (107), 3 states have call predecessors, (107), 3 states have call successors, (107) [2022-11-03 02:07:49,293 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.19s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:07:55,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:07:55,775 INFO L93 Difference]: Finished difference Result 87897 states and 133726 transitions. [2022-11-03 02:07:55,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:07:55,776 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 3 states have call successors, (110), 2 states have call predecessors, (110), 1 states have return successors, (107), 3 states have call predecessors, (107), 3 states have call successors, (107) Word has length 1073 [2022-11-03 02:07:55,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:07:56,438 INFO L225 Difference]: With dead ends: 87897 [2022-11-03 02:07:56,438 INFO L226 Difference]: Without dead ends: 57872 [2022-11-03 02:07:56,658 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:07:56,660 INFO L413 NwaCegarLoop]: 3531 mSDtfsCounter, 2785 mSDsluCounter, 3145 mSDsCounter, 0 mSdLazyCounter, 868 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2785 SdHoareTripleChecker+Valid, 6304 SdHoareTripleChecker+Invalid, 876 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 868 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.1s IncrementalHoareTripleChecker+Time [2022-11-03 02:07:56,660 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2785 Valid, 6304 Invalid, 876 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 868 Invalid, 1 Unknown, 0 Unchecked, 7.1s Time] [2022-11-03 02:07:56,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57872 states. [2022-11-03 02:07:59,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57872 to 57853. [2022-11-03 02:07:59,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57853 states, 39163 states have (on average 1.4051783571227945) internal successors, (55031), 40247 states have internal predecessors, (55031), 16449 states have call successors, (16449), 2239 states have call predecessors, (16449), 2238 states have return successors, (16445), 16290 states have call predecessors, (16445), 16445 states have call successors, (16445) [2022-11-03 02:08:00,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57853 states to 57853 states and 87925 transitions. [2022-11-03 02:08:00,458 INFO L78 Accepts]: Start accepts. Automaton has 57853 states and 87925 transitions. Word has length 1073 [2022-11-03 02:08:00,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:08:00,460 INFO L495 AbstractCegarLoop]: Abstraction has 57853 states and 87925 transitions. [2022-11-03 02:08:00,460 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 3 states have call successors, (110), 2 states have call predecessors, (110), 1 states have return successors, (107), 3 states have call predecessors, (107), 3 states have call successors, (107) [2022-11-03 02:08:00,460 INFO L276 IsEmpty]: Start isEmpty. Operand 57853 states and 87925 transitions. [2022-11-03 02:08:00,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1075 [2022-11-03 02:08:00,475 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:08:00,476 INFO L195 NwaCegarLoop]: trace histogram [105, 104, 104, 104, 104, 104, 104, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:08:00,476 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-03 02:08:00,476 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-03 02:08:00,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:08:00,477 INFO L85 PathProgramCache]: Analyzing trace with hash 1970604995, now seen corresponding path program 1 times [2022-11-03 02:08:00,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:08:00,477 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1668037464] [2022-11-03 02:08:00,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:08:00,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:08:01,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:08:02,410 INFO L134 CoverageAnalysis]: Checked inductivity of 43056 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 43056 trivial. 0 not checked. [2022-11-03 02:08:02,410 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:08:02,411 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1668037464] [2022-11-03 02:08:02,411 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1668037464] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:08:02,411 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:08:02,411 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:08:02,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [417203044] [2022-11-03 02:08:02,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:08:02,413 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:08:02,413 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:08:02,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:08:02,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:08:02,415 INFO L87 Difference]: Start difference. First operand 57853 states and 87925 transitions. Second operand has 3 states, 3 states have (on average 45.0) internal successors, (135), 3 states have internal predecessors, (135), 3 states have call successors, (110), 2 states have call predecessors, (110), 1 states have return successors, (107), 3 states have call predecessors, (107), 3 states have call successors, (107) [2022-11-03 02:08:04,592 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:08:14,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:08:14,477 INFO L93 Difference]: Finished difference Result 169002 states and 256832 transitions. [2022-11-03 02:08:14,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:08:14,478 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.0) internal successors, (135), 3 states have internal predecessors, (135), 3 states have call successors, (110), 2 states have call predecessors, (110), 1 states have return successors, (107), 3 states have call predecessors, (107), 3 states have call successors, (107) Word has length 1074 [2022-11-03 02:08:14,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:08:15,319 INFO L225 Difference]: With dead ends: 169002 [2022-11-03 02:08:15,319 INFO L226 Difference]: Without dead ends: 111358 [2022-11-03 02:08:15,625 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:08:15,626 INFO L413 NwaCegarLoop]: 3709 mSDtfsCounter, 2784 mSDsluCounter, 3145 mSDsCounter, 0 mSdLazyCounter, 888 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2784 SdHoareTripleChecker+Valid, 6482 SdHoareTripleChecker+Invalid, 896 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 888 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.6s IncrementalHoareTripleChecker+Time [2022-11-03 02:08:15,626 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2784 Valid, 6482 Invalid, 896 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 888 Invalid, 1 Unknown, 0 Unchecked, 7.6s Time] [2022-11-03 02:08:15,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111358 states. [2022-11-03 02:08:21,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111358 to 111339. [2022-11-03 02:08:21,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111339 states, 75379 states have (on average 1.4040249936985103) internal successors, (105834), 77519 states have internal predecessors, (105834), 31603 states have call successors, (31603), 4355 states have call predecessors, (31603), 4354 states have return successors, (31599), 31284 states have call predecessors, (31599), 31599 states have call successors, (31599) [2022-11-03 02:08:22,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111339 states to 111339 states and 169036 transitions. [2022-11-03 02:08:22,070 INFO L78 Accepts]: Start accepts. Automaton has 111339 states and 169036 transitions. Word has length 1074 [2022-11-03 02:08:22,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:08:22,071 INFO L495 AbstractCegarLoop]: Abstraction has 111339 states and 169036 transitions. [2022-11-03 02:08:22,072 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.0) internal successors, (135), 3 states have internal predecessors, (135), 3 states have call successors, (110), 2 states have call predecessors, (110), 1 states have return successors, (107), 3 states have call predecessors, (107), 3 states have call successors, (107) [2022-11-03 02:08:22,072 INFO L276 IsEmpty]: Start isEmpty. Operand 111339 states and 169036 transitions. [2022-11-03 02:08:22,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1076 [2022-11-03 02:08:22,090 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:08:22,091 INFO L195 NwaCegarLoop]: trace histogram [105, 104, 104, 104, 104, 104, 104, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:08:22,091 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-03 02:08:22,091 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-03 02:08:22,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:08:22,092 INFO L85 PathProgramCache]: Analyzing trace with hash 1489232741, now seen corresponding path program 1 times [2022-11-03 02:08:22,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:08:22,092 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1385535874] [2022-11-03 02:08:22,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:08:22,093 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:08:23,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:08:24,483 INFO L134 CoverageAnalysis]: Checked inductivity of 43056 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 43056 trivial. 0 not checked. [2022-11-03 02:08:24,484 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:08:24,484 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1385535874] [2022-11-03 02:08:24,484 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1385535874] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:08:24,484 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:08:24,485 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:08:24,485 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1458201627] [2022-11-03 02:08:24,485 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:08:24,487 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:08:24,487 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:08:24,488 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:08:24,488 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:08:24,489 INFO L87 Difference]: Start difference. First operand 111339 states and 169036 transitions. Second operand has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 3 states have call successors, (110), 2 states have call predecessors, (110), 1 states have return successors, (107), 3 states have call predecessors, (107), 3 states have call successors, (107) [2022-11-03 02:08:26,666 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []