./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 53f42b1a Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_034ee5f8-7088-48e8-b22a-3b7cbc669243/bin/utaipan-TEXQjIfE4P/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_034ee5f8-7088-48e8-b22a-3b7cbc669243/bin/utaipan-TEXQjIfE4P/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_034ee5f8-7088-48e8-b22a-3b7cbc669243/bin/utaipan-TEXQjIfE4P/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_034ee5f8-7088-48e8-b22a-3b7cbc669243/bin/utaipan-TEXQjIfE4P/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_034ee5f8-7088-48e8-b22a-3b7cbc669243/bin/utaipan-TEXQjIfE4P/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_034ee5f8-7088-48e8-b22a-3b7cbc669243/bin/utaipan-TEXQjIfE4P --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 d25a5fddccc283f641b7212d7cb4f798f6892ab426c5d600c12492c2922640af --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-21 01:52:31,027 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-21 01:52:31,030 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-21 01:52:31,068 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-21 01:52:31,069 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-21 01:52:31,070 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-21 01:52:31,072 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-21 01:52:31,076 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-21 01:52:31,079 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-21 01:52:31,080 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-21 01:52:31,082 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-21 01:52:31,083 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-21 01:52:31,084 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-21 01:52:31,086 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-21 01:52:31,088 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-21 01:52:31,089 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-21 01:52:31,091 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-21 01:52:31,092 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-21 01:52:31,095 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-21 01:52:31,098 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-21 01:52:31,101 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-21 01:52:31,109 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-21 01:52:31,111 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-21 01:52:31,113 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-21 01:52:31,123 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-21 01:52:31,124 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-21 01:52:31,124 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-21 01:52:31,126 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-21 01:52:31,126 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-21 01:52:31,128 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-21 01:52:31,128 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-21 01:52:31,130 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-21 01:52:31,131 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-21 01:52:31,132 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-21 01:52:31,134 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-21 01:52:31,134 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-21 01:52:31,135 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-21 01:52:31,136 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-21 01:52:31,136 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-21 01:52:31,137 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-21 01:52:31,139 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-21 01:52:31,140 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_034ee5f8-7088-48e8-b22a-3b7cbc669243/bin/utaipan-TEXQjIfE4P/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-21 01:52:31,175 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-21 01:52:31,176 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-21 01:52:31,176 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-21 01:52:31,176 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-21 01:52:31,177 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-21 01:52:31,178 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-21 01:52:31,178 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-21 01:52:31,178 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-21 01:52:31,179 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-21 01:52:31,179 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-21 01:52:31,179 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-21 01:52:31,180 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-21 01:52:31,180 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-21 01:52:31,180 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-21 01:52:31,181 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-21 01:52:31,181 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-21 01:52:31,181 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-21 01:52:31,182 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-21 01:52:31,182 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-21 01:52:31,183 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-21 01:52:31,183 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-21 01:52:31,183 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-21 01:52:31,184 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-21 01:52:31,184 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-21 01:52:31,184 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-21 01:52:31,185 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-21 01:52:31,185 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-21 01:52:31,185 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-21 01:52:31,186 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-21 01:52:31,186 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 01:52:31,186 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-21 01:52:31,187 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-21 01:52:31,187 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-21 01:52:31,187 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-21 01:52:31,188 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-21 01:52:31,188 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-21 01:52:31,188 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-21 01:52:31,188 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-21 01:52:31,189 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_034ee5f8-7088-48e8-b22a-3b7cbc669243/bin/utaipan-TEXQjIfE4P/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_034ee5f8-7088-48e8-b22a-3b7cbc669243/bin/utaipan-TEXQjIfE4P Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d25a5fddccc283f641b7212d7cb4f798f6892ab426c5d600c12492c2922640af [2021-11-21 01:52:31,457 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-21 01:52:31,496 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-21 01:52:31,499 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-21 01:52:31,501 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-21 01:52:31,502 INFO L275 PluginConnector]: CDTParser initialized [2021-11-21 01:52:31,504 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_034ee5f8-7088-48e8-b22a-3b7cbc669243/bin/utaipan-TEXQjIfE4P/../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i [2021-11-21 01:52:31,605 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_034ee5f8-7088-48e8-b22a-3b7cbc669243/bin/utaipan-TEXQjIfE4P/data/0adcb7745/f54cdc76b88a4e229a0de6ad787c862c/FLAG4a0245175 [2021-11-21 01:52:32,670 INFO L306 CDTParser]: Found 1 translation units. [2021-11-21 01:52:32,671 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_034ee5f8-7088-48e8-b22a-3b7cbc669243/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i [2021-11-21 01:52:32,733 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_034ee5f8-7088-48e8-b22a-3b7cbc669243/bin/utaipan-TEXQjIfE4P/data/0adcb7745/f54cdc76b88a4e229a0de6ad787c862c/FLAG4a0245175 [2021-11-21 01:52:32,990 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_034ee5f8-7088-48e8-b22a-3b7cbc669243/bin/utaipan-TEXQjIfE4P/data/0adcb7745/f54cdc76b88a4e229a0de6ad787c862c [2021-11-21 01:52:32,993 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-21 01:52:32,995 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-21 01:52:33,003 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-21 01:52:33,003 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-21 01:52:33,007 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-21 01:52:33,009 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 01:52:32" (1/1) ... [2021-11-21 01:52:33,011 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3325bcc4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:52:33, skipping insertion in model container [2021-11-21 01:52:33,011 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 01:52:32" (1/1) ... [2021-11-21 01:52:33,021 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-21 01:52:33,241 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-21 01:52:39,188 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_034ee5f8-7088-48e8-b22a-3b7cbc669243/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[491154,491167] [2021-11-21 01:52:39,191 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_034ee5f8-7088-48e8-b22a-3b7cbc669243/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[491299,491312] [2021-11-21 01:52:39,192 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_034ee5f8-7088-48e8-b22a-3b7cbc669243/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[491445,491458] [2021-11-21 01:52:39,192 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_034ee5f8-7088-48e8-b22a-3b7cbc669243/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[491610,491623] [2021-11-21 01:52:39,193 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_034ee5f8-7088-48e8-b22a-3b7cbc669243/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[491768,491781] [2021-11-21 01:52:39,193 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_034ee5f8-7088-48e8-b22a-3b7cbc669243/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[491926,491939] [2021-11-21 01:52:39,194 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_034ee5f8-7088-48e8-b22a-3b7cbc669243/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[492084,492097] [2021-11-21 01:52:39,195 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_034ee5f8-7088-48e8-b22a-3b7cbc669243/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[492244,492257] [2021-11-21 01:52:39,195 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_034ee5f8-7088-48e8-b22a-3b7cbc669243/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[492403,492416] [2021-11-21 01:52:39,196 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_034ee5f8-7088-48e8-b22a-3b7cbc669243/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[492542,492555] [2021-11-21 01:52:39,196 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_034ee5f8-7088-48e8-b22a-3b7cbc669243/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[492684,492697] [2021-11-21 01:52:39,197 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_034ee5f8-7088-48e8-b22a-3b7cbc669243/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[492833,492846] [2021-11-21 01:52:39,197 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_034ee5f8-7088-48e8-b22a-3b7cbc669243/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[492972,492985] [2021-11-21 01:52:39,198 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_034ee5f8-7088-48e8-b22a-3b7cbc669243/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[493127,493140] [2021-11-21 01:52:39,199 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_034ee5f8-7088-48e8-b22a-3b7cbc669243/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[493287,493300] [2021-11-21 01:52:39,199 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_034ee5f8-7088-48e8-b22a-3b7cbc669243/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[493438,493451] [2021-11-21 01:52:39,200 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_034ee5f8-7088-48e8-b22a-3b7cbc669243/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[493589,493602] [2021-11-21 01:52:39,202 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_034ee5f8-7088-48e8-b22a-3b7cbc669243/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[493741,493754] [2021-11-21 01:52:39,202 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_034ee5f8-7088-48e8-b22a-3b7cbc669243/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[493890,493903] [2021-11-21 01:52:39,203 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_034ee5f8-7088-48e8-b22a-3b7cbc669243/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[494038,494051] [2021-11-21 01:52:39,204 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_034ee5f8-7088-48e8-b22a-3b7cbc669243/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[494195,494208] [2021-11-21 01:52:39,204 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_034ee5f8-7088-48e8-b22a-3b7cbc669243/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[494344,494357] [2021-11-21 01:52:39,205 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_034ee5f8-7088-48e8-b22a-3b7cbc669243/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[494500,494513] [2021-11-21 01:52:39,205 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_034ee5f8-7088-48e8-b22a-3b7cbc669243/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[494653,494666] [2021-11-21 01:52:39,206 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_034ee5f8-7088-48e8-b22a-3b7cbc669243/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[494799,494812] [2021-11-21 01:52:39,206 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_034ee5f8-7088-48e8-b22a-3b7cbc669243/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[494942,494955] [2021-11-21 01:52:39,207 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_034ee5f8-7088-48e8-b22a-3b7cbc669243/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[495094,495107] [2021-11-21 01:52:39,207 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_034ee5f8-7088-48e8-b22a-3b7cbc669243/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[495240,495253] [2021-11-21 01:52:39,208 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_034ee5f8-7088-48e8-b22a-3b7cbc669243/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[495385,495398] [2021-11-21 01:52:39,209 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_034ee5f8-7088-48e8-b22a-3b7cbc669243/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[495539,495552] [2021-11-21 01:52:39,209 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_034ee5f8-7088-48e8-b22a-3b7cbc669243/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[495690,495703] [2021-11-21 01:52:39,210 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_034ee5f8-7088-48e8-b22a-3b7cbc669243/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[495845,495858] [2021-11-21 01:52:39,210 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_034ee5f8-7088-48e8-b22a-3b7cbc669243/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[495997,496010] [2021-11-21 01:52:39,211 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_034ee5f8-7088-48e8-b22a-3b7cbc669243/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[496152,496165] [2021-11-21 01:52:39,211 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_034ee5f8-7088-48e8-b22a-3b7cbc669243/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[496316,496329] [2021-11-21 01:52:39,212 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_034ee5f8-7088-48e8-b22a-3b7cbc669243/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[496472,496485] [2021-11-21 01:52:39,212 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_034ee5f8-7088-48e8-b22a-3b7cbc669243/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[496636,496649] [2021-11-21 01:52:39,213 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_034ee5f8-7088-48e8-b22a-3b7cbc669243/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[496778,496791] [2021-11-21 01:52:39,213 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_034ee5f8-7088-48e8-b22a-3b7cbc669243/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[496936,496949] [2021-11-21 01:52:39,214 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_034ee5f8-7088-48e8-b22a-3b7cbc669243/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[497103,497116] [2021-11-21 01:52:39,214 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_034ee5f8-7088-48e8-b22a-3b7cbc669243/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[497262,497275] [2021-11-21 01:52:39,215 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_034ee5f8-7088-48e8-b22a-3b7cbc669243/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[497421,497434] [2021-11-21 01:52:39,215 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_034ee5f8-7088-48e8-b22a-3b7cbc669243/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[497570,497583] [2021-11-21 01:52:39,216 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_034ee5f8-7088-48e8-b22a-3b7cbc669243/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[497717,497730] [2021-11-21 01:52:39,217 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_034ee5f8-7088-48e8-b22a-3b7cbc669243/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[497856,497869] [2021-11-21 01:52:39,217 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_034ee5f8-7088-48e8-b22a-3b7cbc669243/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[498019,498032] [2021-11-21 01:52:39,218 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_034ee5f8-7088-48e8-b22a-3b7cbc669243/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[498185,498198] [2021-11-21 01:52:39,218 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_034ee5f8-7088-48e8-b22a-3b7cbc669243/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[498349,498362] [2021-11-21 01:52:39,219 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_034ee5f8-7088-48e8-b22a-3b7cbc669243/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[498514,498527] [2021-11-21 01:52:39,219 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_034ee5f8-7088-48e8-b22a-3b7cbc669243/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[498679,498692] [2021-11-21 01:52:39,220 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_034ee5f8-7088-48e8-b22a-3b7cbc669243/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[498845,498858] [2021-11-21 01:52:39,220 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_034ee5f8-7088-48e8-b22a-3b7cbc669243/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[499010,499023] [2021-11-21 01:52:39,221 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_034ee5f8-7088-48e8-b22a-3b7cbc669243/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[499177,499190] [2021-11-21 01:52:39,221 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_034ee5f8-7088-48e8-b22a-3b7cbc669243/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[499337,499350] [2021-11-21 01:52:39,222 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_034ee5f8-7088-48e8-b22a-3b7cbc669243/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[499499,499512] [2021-11-21 01:52:39,222 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_034ee5f8-7088-48e8-b22a-3b7cbc669243/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[499658,499671] [2021-11-21 01:52:39,223 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_034ee5f8-7088-48e8-b22a-3b7cbc669243/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[499804,499817] [2021-11-21 01:52:39,223 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_034ee5f8-7088-48e8-b22a-3b7cbc669243/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[499947,499960] [2021-11-21 01:52:39,224 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_034ee5f8-7088-48e8-b22a-3b7cbc669243/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[500091,500104] [2021-11-21 01:52:39,224 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_034ee5f8-7088-48e8-b22a-3b7cbc669243/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[500234,500247] [2021-11-21 01:52:39,225 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_034ee5f8-7088-48e8-b22a-3b7cbc669243/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[500378,500391] [2021-11-21 01:52:39,225 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_034ee5f8-7088-48e8-b22a-3b7cbc669243/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[500519,500532] [2021-11-21 01:52:39,226 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_034ee5f8-7088-48e8-b22a-3b7cbc669243/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[500657,500670] [2021-11-21 01:52:39,226 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_034ee5f8-7088-48e8-b22a-3b7cbc669243/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[500815,500828] [2021-11-21 01:52:39,227 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_034ee5f8-7088-48e8-b22a-3b7cbc669243/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[500974,500987] [2021-11-21 01:52:39,228 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_034ee5f8-7088-48e8-b22a-3b7cbc669243/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[501130,501143] [2021-11-21 01:52:39,228 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_034ee5f8-7088-48e8-b22a-3b7cbc669243/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[501279,501292] [2021-11-21 01:52:39,229 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_034ee5f8-7088-48e8-b22a-3b7cbc669243/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[501431,501444] [2021-11-21 01:52:39,229 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_034ee5f8-7088-48e8-b22a-3b7cbc669243/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[501582,501595] [2021-11-21 01:52:39,230 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_034ee5f8-7088-48e8-b22a-3b7cbc669243/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[501731,501744] [2021-11-21 01:52:39,230 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_034ee5f8-7088-48e8-b22a-3b7cbc669243/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[501883,501896] [2021-11-21 01:52:39,231 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_034ee5f8-7088-48e8-b22a-3b7cbc669243/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[502031,502044] [2021-11-21 01:52:39,231 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_034ee5f8-7088-48e8-b22a-3b7cbc669243/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[502184,502197] [2021-11-21 01:52:39,232 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_034ee5f8-7088-48e8-b22a-3b7cbc669243/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[502335,502348] [2021-11-21 01:52:39,232 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_034ee5f8-7088-48e8-b22a-3b7cbc669243/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[502485,502498] [2021-11-21 01:52:39,233 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_034ee5f8-7088-48e8-b22a-3b7cbc669243/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[502632,502645] [2021-11-21 01:52:39,233 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_034ee5f8-7088-48e8-b22a-3b7cbc669243/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[502783,502796] [2021-11-21 01:52:39,234 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_034ee5f8-7088-48e8-b22a-3b7cbc669243/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[502934,502947] [2021-11-21 01:52:39,234 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_034ee5f8-7088-48e8-b22a-3b7cbc669243/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[503082,503095] [2021-11-21 01:52:39,235 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_034ee5f8-7088-48e8-b22a-3b7cbc669243/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[503248,503261] [2021-11-21 01:52:39,235 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_034ee5f8-7088-48e8-b22a-3b7cbc669243/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[503417,503430] [2021-11-21 01:52:39,236 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_034ee5f8-7088-48e8-b22a-3b7cbc669243/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[503584,503597] [2021-11-21 01:52:39,236 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_034ee5f8-7088-48e8-b22a-3b7cbc669243/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[503752,503765] [2021-11-21 01:52:39,237 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_034ee5f8-7088-48e8-b22a-3b7cbc669243/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[503902,503915] [2021-11-21 01:52:39,237 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_034ee5f8-7088-48e8-b22a-3b7cbc669243/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[504049,504062] [2021-11-21 01:52:39,238 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_034ee5f8-7088-48e8-b22a-3b7cbc669243/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[504210,504223] [2021-11-21 01:52:39,238 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_034ee5f8-7088-48e8-b22a-3b7cbc669243/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[504380,504393] [2021-11-21 01:52:39,239 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_034ee5f8-7088-48e8-b22a-3b7cbc669243/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[504542,504555] [2021-11-21 01:52:39,260 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 01:52:39,308 INFO L203 MainTranslator]: Completed pre-run [2021-11-21 01:52:39,792 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_034ee5f8-7088-48e8-b22a-3b7cbc669243/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[491154,491167] [2021-11-21 01:52:39,793 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_034ee5f8-7088-48e8-b22a-3b7cbc669243/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[491299,491312] [2021-11-21 01:52:39,793 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_034ee5f8-7088-48e8-b22a-3b7cbc669243/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[491445,491458] [2021-11-21 01:52:39,794 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_034ee5f8-7088-48e8-b22a-3b7cbc669243/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[491610,491623] [2021-11-21 01:52:39,794 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_034ee5f8-7088-48e8-b22a-3b7cbc669243/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[491768,491781] [2021-11-21 01:52:39,795 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_034ee5f8-7088-48e8-b22a-3b7cbc669243/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[491926,491939] [2021-11-21 01:52:39,795 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_034ee5f8-7088-48e8-b22a-3b7cbc669243/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[492084,492097] [2021-11-21 01:52:39,795 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_034ee5f8-7088-48e8-b22a-3b7cbc669243/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[492244,492257] [2021-11-21 01:52:39,796 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_034ee5f8-7088-48e8-b22a-3b7cbc669243/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[492403,492416] [2021-11-21 01:52:39,796 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_034ee5f8-7088-48e8-b22a-3b7cbc669243/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[492542,492555] [2021-11-21 01:52:39,797 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_034ee5f8-7088-48e8-b22a-3b7cbc669243/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[492684,492697] [2021-11-21 01:52:39,799 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_034ee5f8-7088-48e8-b22a-3b7cbc669243/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[492833,492846] [2021-11-21 01:52:39,799 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_034ee5f8-7088-48e8-b22a-3b7cbc669243/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[492972,492985] [2021-11-21 01:52:39,800 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_034ee5f8-7088-48e8-b22a-3b7cbc669243/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[493127,493140] [2021-11-21 01:52:39,800 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_034ee5f8-7088-48e8-b22a-3b7cbc669243/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[493287,493300] [2021-11-21 01:52:39,800 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_034ee5f8-7088-48e8-b22a-3b7cbc669243/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[493438,493451] [2021-11-21 01:52:39,801 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_034ee5f8-7088-48e8-b22a-3b7cbc669243/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[493589,493602] [2021-11-21 01:52:39,801 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_034ee5f8-7088-48e8-b22a-3b7cbc669243/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[493741,493754] [2021-11-21 01:52:39,802 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_034ee5f8-7088-48e8-b22a-3b7cbc669243/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[493890,493903] [2021-11-21 01:52:39,802 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_034ee5f8-7088-48e8-b22a-3b7cbc669243/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[494038,494051] [2021-11-21 01:52:39,802 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_034ee5f8-7088-48e8-b22a-3b7cbc669243/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[494195,494208] [2021-11-21 01:52:39,803 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_034ee5f8-7088-48e8-b22a-3b7cbc669243/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[494344,494357] [2021-11-21 01:52:39,803 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_034ee5f8-7088-48e8-b22a-3b7cbc669243/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[494500,494513] [2021-11-21 01:52:39,804 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_034ee5f8-7088-48e8-b22a-3b7cbc669243/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[494653,494666] [2021-11-21 01:52:39,805 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_034ee5f8-7088-48e8-b22a-3b7cbc669243/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[494799,494812] [2021-11-21 01:52:39,805 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_034ee5f8-7088-48e8-b22a-3b7cbc669243/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[494942,494955] [2021-11-21 01:52:39,805 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_034ee5f8-7088-48e8-b22a-3b7cbc669243/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[495094,495107] [2021-11-21 01:52:39,806 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_034ee5f8-7088-48e8-b22a-3b7cbc669243/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[495240,495253] [2021-11-21 01:52:39,807 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_034ee5f8-7088-48e8-b22a-3b7cbc669243/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[495385,495398] [2021-11-21 01:52:39,807 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_034ee5f8-7088-48e8-b22a-3b7cbc669243/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[495539,495552] [2021-11-21 01:52:39,808 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_034ee5f8-7088-48e8-b22a-3b7cbc669243/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[495690,495703] [2021-11-21 01:52:39,808 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_034ee5f8-7088-48e8-b22a-3b7cbc669243/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[495845,495858] [2021-11-21 01:52:39,808 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_034ee5f8-7088-48e8-b22a-3b7cbc669243/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[495997,496010] [2021-11-21 01:52:39,810 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_034ee5f8-7088-48e8-b22a-3b7cbc669243/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[496152,496165] [2021-11-21 01:52:39,810 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_034ee5f8-7088-48e8-b22a-3b7cbc669243/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[496316,496329] [2021-11-21 01:52:39,810 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_034ee5f8-7088-48e8-b22a-3b7cbc669243/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[496472,496485] [2021-11-21 01:52:39,811 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_034ee5f8-7088-48e8-b22a-3b7cbc669243/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[496636,496649] [2021-11-21 01:52:39,812 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_034ee5f8-7088-48e8-b22a-3b7cbc669243/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[496778,496791] [2021-11-21 01:52:39,812 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_034ee5f8-7088-48e8-b22a-3b7cbc669243/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[496936,496949] [2021-11-21 01:52:39,813 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_034ee5f8-7088-48e8-b22a-3b7cbc669243/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[497103,497116] [2021-11-21 01:52:39,814 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_034ee5f8-7088-48e8-b22a-3b7cbc669243/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[497262,497275] [2021-11-21 01:52:39,814 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_034ee5f8-7088-48e8-b22a-3b7cbc669243/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[497421,497434] [2021-11-21 01:52:39,815 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_034ee5f8-7088-48e8-b22a-3b7cbc669243/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[497570,497583] [2021-11-21 01:52:39,815 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_034ee5f8-7088-48e8-b22a-3b7cbc669243/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[497717,497730] [2021-11-21 01:52:39,816 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_034ee5f8-7088-48e8-b22a-3b7cbc669243/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[497856,497869] [2021-11-21 01:52:39,816 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_034ee5f8-7088-48e8-b22a-3b7cbc669243/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[498019,498032] [2021-11-21 01:52:39,817 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_034ee5f8-7088-48e8-b22a-3b7cbc669243/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[498185,498198] [2021-11-21 01:52:39,817 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_034ee5f8-7088-48e8-b22a-3b7cbc669243/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[498349,498362] [2021-11-21 01:52:39,818 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_034ee5f8-7088-48e8-b22a-3b7cbc669243/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[498514,498527] [2021-11-21 01:52:39,818 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_034ee5f8-7088-48e8-b22a-3b7cbc669243/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[498679,498692] [2021-11-21 01:52:39,819 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_034ee5f8-7088-48e8-b22a-3b7cbc669243/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[498845,498858] [2021-11-21 01:52:39,819 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_034ee5f8-7088-48e8-b22a-3b7cbc669243/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[499010,499023] [2021-11-21 01:52:39,819 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_034ee5f8-7088-48e8-b22a-3b7cbc669243/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[499177,499190] [2021-11-21 01:52:39,820 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_034ee5f8-7088-48e8-b22a-3b7cbc669243/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[499337,499350] [2021-11-21 01:52:39,821 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_034ee5f8-7088-48e8-b22a-3b7cbc669243/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[499499,499512] [2021-11-21 01:52:39,822 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_034ee5f8-7088-48e8-b22a-3b7cbc669243/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[499658,499671] [2021-11-21 01:52:39,824 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_034ee5f8-7088-48e8-b22a-3b7cbc669243/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[499804,499817] [2021-11-21 01:52:39,825 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_034ee5f8-7088-48e8-b22a-3b7cbc669243/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[499947,499960] [2021-11-21 01:52:39,825 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_034ee5f8-7088-48e8-b22a-3b7cbc669243/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[500091,500104] [2021-11-21 01:52:39,826 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_034ee5f8-7088-48e8-b22a-3b7cbc669243/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[500234,500247] [2021-11-21 01:52:39,830 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_034ee5f8-7088-48e8-b22a-3b7cbc669243/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[500378,500391] [2021-11-21 01:52:39,831 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_034ee5f8-7088-48e8-b22a-3b7cbc669243/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[500519,500532] [2021-11-21 01:52:39,832 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_034ee5f8-7088-48e8-b22a-3b7cbc669243/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[500657,500670] [2021-11-21 01:52:39,833 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_034ee5f8-7088-48e8-b22a-3b7cbc669243/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[500815,500828] [2021-11-21 01:52:39,833 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_034ee5f8-7088-48e8-b22a-3b7cbc669243/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[500974,500987] [2021-11-21 01:52:39,840 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_034ee5f8-7088-48e8-b22a-3b7cbc669243/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[501130,501143] [2021-11-21 01:52:39,840 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_034ee5f8-7088-48e8-b22a-3b7cbc669243/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[501279,501292] [2021-11-21 01:52:39,841 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_034ee5f8-7088-48e8-b22a-3b7cbc669243/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[501431,501444] [2021-11-21 01:52:39,841 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_034ee5f8-7088-48e8-b22a-3b7cbc669243/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[501582,501595] [2021-11-21 01:52:39,841 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_034ee5f8-7088-48e8-b22a-3b7cbc669243/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[501731,501744] [2021-11-21 01:52:39,842 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_034ee5f8-7088-48e8-b22a-3b7cbc669243/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[501883,501896] [2021-11-21 01:52:39,842 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_034ee5f8-7088-48e8-b22a-3b7cbc669243/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[502031,502044] [2021-11-21 01:52:39,843 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_034ee5f8-7088-48e8-b22a-3b7cbc669243/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[502184,502197] [2021-11-21 01:52:39,843 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_034ee5f8-7088-48e8-b22a-3b7cbc669243/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[502335,502348] [2021-11-21 01:52:39,843 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_034ee5f8-7088-48e8-b22a-3b7cbc669243/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[502485,502498] [2021-11-21 01:52:39,844 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_034ee5f8-7088-48e8-b22a-3b7cbc669243/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[502632,502645] [2021-11-21 01:52:39,844 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_034ee5f8-7088-48e8-b22a-3b7cbc669243/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[502783,502796] [2021-11-21 01:52:39,844 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_034ee5f8-7088-48e8-b22a-3b7cbc669243/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[502934,502947] [2021-11-21 01:52:39,847 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_034ee5f8-7088-48e8-b22a-3b7cbc669243/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[503082,503095] [2021-11-21 01:52:39,847 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_034ee5f8-7088-48e8-b22a-3b7cbc669243/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[503248,503261] [2021-11-21 01:52:39,847 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_034ee5f8-7088-48e8-b22a-3b7cbc669243/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[503417,503430] [2021-11-21 01:52:39,848 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_034ee5f8-7088-48e8-b22a-3b7cbc669243/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[503584,503597] [2021-11-21 01:52:39,848 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_034ee5f8-7088-48e8-b22a-3b7cbc669243/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[503752,503765] [2021-11-21 01:52:39,848 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_034ee5f8-7088-48e8-b22a-3b7cbc669243/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[503902,503915] [2021-11-21 01:52:39,849 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_034ee5f8-7088-48e8-b22a-3b7cbc669243/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[504049,504062] [2021-11-21 01:52:39,849 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_034ee5f8-7088-48e8-b22a-3b7cbc669243/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[504210,504223] [2021-11-21 01:52:39,849 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_034ee5f8-7088-48e8-b22a-3b7cbc669243/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[504380,504393] [2021-11-21 01:52:39,850 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_034ee5f8-7088-48e8-b22a-3b7cbc669243/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[504542,504555] [2021-11-21 01:52:39,853 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 01:52:40,164 INFO L208 MainTranslator]: Completed translation [2021-11-21 01:52:40,165 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:52:40 WrapperNode [2021-11-21 01:52:40,165 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-21 01:52:40,167 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-21 01:52:40,167 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-21 01:52:40,167 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-21 01:52:40,174 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:52:40" (1/1) ... [2021-11-21 01:52:40,357 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:52:40" (1/1) ... [2021-11-21 01:52:40,673 INFO L137 Inliner]: procedures = 687, calls = 4509, calls flagged for inlining = 318, calls inlined = 208, statements flattened = 7248 [2021-11-21 01:52:40,673 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-21 01:52:40,674 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-21 01:52:40,675 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-21 01:52:40,675 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-21 01:52:40,683 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:52:40" (1/1) ... [2021-11-21 01:52:40,684 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:52:40" (1/1) ... [2021-11-21 01:52:40,713 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:52:40" (1/1) ... [2021-11-21 01:52:40,714 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:52:40" (1/1) ... [2021-11-21 01:52:40,896 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:52:40" (1/1) ... [2021-11-21 01:52:40,933 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:52:40" (1/1) ... [2021-11-21 01:52:40,971 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:52:40" (1/1) ... [2021-11-21 01:52:41,012 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-21 01:52:41,013 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-21 01:52:41,014 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-21 01:52:41,014 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-21 01:52:41,015 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:52:40" (1/1) ... [2021-11-21 01:52:41,022 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 01:52:41,033 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_034ee5f8-7088-48e8-b22a-3b7cbc669243/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 01:52:41,048 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_034ee5f8-7088-48e8-b22a-3b7cbc669243/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-21 01:52:41,076 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_034ee5f8-7088-48e8-b22a-3b7cbc669243/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-21 01:52:41,094 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2021-11-21 01:52:41,094 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2021-11-21 01:52:41,094 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_coherent_check_final_state [2021-11-21 01:52:41,094 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_coherent_check_final_state [2021-11-21 01:52:41,094 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_free_txskb [2021-11-21 01:52:41,094 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_free_txskb [2021-11-21 01:52:41,095 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-21 01:52:41,095 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-21 01:52:41,095 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_mmc_sdio_func_check_final_state [2021-11-21 01:52:41,096 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_mmc_sdio_func_check_final_state [2021-11-21 01:52:41,096 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_coherent_usb_alloc_coherent [2021-11-21 01:52:41,097 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_coherent_usb_alloc_coherent [2021-11-21 01:52:41,097 INFO L130 BoogieDeclarations]: Found specification of procedure ar5523_cancel_rx_cmd [2021-11-21 01:52:41,098 INFO L138 BoogieDeclarations]: Found implementation of procedure ar5523_cancel_rx_cmd [2021-11-21 01:52:41,098 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-11-21 01:52:41,098 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-11-21 01:52:41,098 INFO L130 BoogieDeclarations]: Found specification of procedure ar5523_get_capability [2021-11-21 01:52:41,098 INFO L138 BoogieDeclarations]: Found implementation of procedure ar5523_get_capability [2021-11-21 01:52:41,098 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2021-11-21 01:52:41,098 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2021-11-21 01:52:41,099 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_arch_io_check_final_state [2021-11-21 01:52:41,160 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_arch_io_check_final_state [2021-11-21 01:52:41,160 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_module_check_final_state [2021-11-21 01:52:41,160 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_module_check_final_state [2021-11-21 01:52:41,160 INFO L130 BoogieDeclarations]: Found specification of procedure ar5523_set_rxfilter [2021-11-21 01:52:41,160 INFO L138 BoogieDeclarations]: Found implementation of procedure ar5523_set_rxfilter [2021-11-21 01:52:41,160 INFO L130 BoogieDeclarations]: Found specification of procedure ar5523_start [2021-11-21 01:52:41,160 INFO L138 BoogieDeclarations]: Found implementation of procedure ar5523_start [2021-11-21 01:52:41,160 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_net_rtnetlink__double_lock [2021-11-21 01:52:41,160 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_net_rtnetlink__double_lock [2021-11-21 01:52:41,161 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-11-21 01:52:41,161 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-11-21 01:52:41,161 INFO L130 BoogieDeclarations]: Found specification of procedure ar5523_cmd_write [2021-11-21 01:52:41,161 INFO L138 BoogieDeclarations]: Found implementation of procedure ar5523_cmd_write [2021-11-21 01:52:41,161 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_rtnetlink_past_rtnl_lock [2021-11-21 01:52:41,161 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_rtnetlink_past_rtnl_lock [2021-11-21 01:52:41,161 INFO L130 BoogieDeclarations]: Found specification of procedure ar5523_get_status [2021-11-21 01:52:41,161 INFO L138 BoogieDeclarations]: Found implementation of procedure ar5523_get_status [2021-11-21 01:52:41,161 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-21 01:52:41,161 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-21 01:52:41,161 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-21 01:52:41,161 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-21 01:52:41,161 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_queue_check_final_state [2021-11-21 01:52:41,162 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_queue_check_final_state [2021-11-21 01:52:41,162 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-11-21 01:52:41,162 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-11-21 01:52:41,162 INFO L130 BoogieDeclarations]: Found specification of procedure ar5523_config [2021-11-21 01:52:41,162 INFO L138 BoogieDeclarations]: Found implementation of procedure ar5523_config [2021-11-21 01:52:41,162 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_spinlock_spin_lock_rx_data_list_lock_of_ar5523 [2021-11-21 01:52:41,162 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_spinlock_spin_lock_rx_data_list_lock_of_ar5523 [2021-11-21 01:52:41,162 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-21 01:52:41,162 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_work_sync [2021-11-21 01:52:41,162 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_work_sync [2021-11-21 01:52:41,162 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2021-11-21 01:52:41,162 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2021-11-21 01:52:41,163 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2021-11-21 01:52:41,163 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2021-11-21 01:52:41,163 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_request_check_final_state [2021-11-21 01:52:41,163 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_request_check_final_state [2021-11-21 01:52:41,163 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_queue_delayed_work [2021-11-21 01:52:41,163 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_queue_delayed_work [2021-11-21 01:52:41,163 INFO L130 BoogieDeclarations]: Found specification of procedure ar5523_data_tx_pkt_put [2021-11-21 01:52:41,163 INFO L138 BoogieDeclarations]: Found implementation of procedure ar5523_data_tx_pkt_put [2021-11-21 01:52:41,163 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-21 01:52:41,163 INFO L130 BoogieDeclarations]: Found specification of procedure ar5523_create_rateset [2021-11-21 01:52:41,163 INFO L138 BoogieDeclarations]: Found implementation of procedure ar5523_create_rateset [2021-11-21 01:52:41,163 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2021-11-21 01:52:41,164 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2021-11-21 01:52:41,164 INFO L130 BoogieDeclarations]: Found specification of procedure ar5523_set_ledsteady [2021-11-21 01:52:41,164 INFO L138 BoogieDeclarations]: Found implementation of procedure ar5523_set_ledsteady [2021-11-21 01:52:41,164 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-21 01:52:41,164 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_in_interrupt_context [2021-11-21 01:52:41,164 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_in_interrupt_context [2021-11-21 01:52:41,164 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-21 01:52:41,164 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-21 01:52:41,164 INFO L130 BoogieDeclarations]: Found specification of procedure ar5523_free_rx_bufs [2021-11-21 01:52:41,164 INFO L138 BoogieDeclarations]: Found implementation of procedure ar5523_free_rx_bufs [2021-11-21 01:52:41,164 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_bh_check_final_state [2021-11-21 01:52:41,164 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_bh_check_final_state [2021-11-21 01:52:41,165 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-21 01:52:41,165 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_genhd_check_final_state [2021-11-21 01:52:41,165 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_genhd_check_final_state [2021-11-21 01:52:41,165 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_after_alloc [2021-11-21 01:52:41,167 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_after_alloc [2021-11-21 01:52:41,169 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-21 01:52:41,169 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-21 01:52:41,170 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_mutex_of_ar5523 [2021-11-21 01:52:41,170 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_mutex_of_ar5523 [2021-11-21 01:52:41,170 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_register_reset_error_counter [2021-11-21 01:52:41,170 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_register_reset_error_counter [2021-11-21 01:52:41,170 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2021-11-21 01:52:41,170 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2021-11-21 01:52:41,170 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2021-11-21 01:52:41,171 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2021-11-21 01:52:41,171 INFO L130 BoogieDeclarations]: Found specification of procedure ar5523_disconnect [2021-11-21 01:52:41,171 INFO L138 BoogieDeclarations]: Found implementation of procedure ar5523_disconnect [2021-11-21 01:52:41,171 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2021-11-21 01:52:41,171 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2021-11-21 01:52:41,171 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_lib_idr_check_final_state [2021-11-21 01:52:41,171 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_lib_idr_check_final_state [2021-11-21 01:52:41,171 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_srcu_check_final_state [2021-11-21 01:52:41,172 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_srcu_check_final_state [2021-11-21 01:52:41,172 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-21 01:52:41,172 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer [2021-11-21 01:52:41,172 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer [2021-11-21 01:52:41,172 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2021-11-21 01:52:41,172 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2021-11-21 01:52:41,172 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-21 01:52:41,173 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_free_hw [2021-11-21 01:52:41,173 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_free_hw [2021-11-21 01:52:41,173 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-21 01:52:41,173 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-21 01:52:41,173 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-21 01:52:41,173 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-11-21 01:52:41,173 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-11-21 01:52:41,174 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2021-11-21 01:52:41,174 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2021-11-21 01:52:41,174 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_alloc_irq_check_alloc_flags [2021-11-21 01:52:41,174 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_alloc_irq_check_alloc_flags [2021-11-21 01:52:41,174 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2021-11-21 01:52:41,175 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2021-11-21 01:52:41,175 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_queue_work [2021-11-21 01:52:41,175 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_queue_work [2021-11-21 01:52:41,175 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_register_reset_error_counter [2021-11-21 01:52:41,176 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_register_reset_error_counter [2021-11-21 01:52:41,176 INFO L130 BoogieDeclarations]: Found specification of procedure list_move [2021-11-21 01:52:41,176 INFO L138 BoogieDeclarations]: Found implementation of procedure list_move [2021-11-21 01:52:41,176 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-11-21 01:52:41,176 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-11-21 01:52:41,176 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_lock_mutex_of_ar5523 [2021-11-21 01:52:41,176 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_lock_mutex_of_ar5523 [2021-11-21 01:52:41,177 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-21 01:52:41,177 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-21 01:52:41,177 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2021-11-21 01:52:41,177 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2021-11-21 01:52:41,177 INFO L130 BoogieDeclarations]: Found specification of procedure ar5523_submit_rx_cmd [2021-11-21 01:52:41,177 INFO L138 BoogieDeclarations]: Found implementation of procedure ar5523_submit_rx_cmd [2021-11-21 01:52:41,177 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-21 01:52:41,178 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-21 01:52:41,178 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-21 01:52:41,178 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-21 01:52:41,178 INFO L130 BoogieDeclarations]: Found specification of procedure skb_push [2021-11-21 01:52:41,178 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_push [2021-11-21 01:52:41,178 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-11-21 01:52:41,178 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-11-21 01:52:41,179 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ieee80211_free_hw [2021-11-21 01:52:41,179 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ieee80211_free_hw [2021-11-21 01:52:41,179 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_143 [2021-11-21 01:52:41,179 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_143 [2021-11-21 01:52:41,179 INFO L130 BoogieDeclarations]: Found specification of procedure destroy_workqueue [2021-11-21 01:52:41,179 INFO L138 BoogieDeclarations]: Found implementation of procedure destroy_workqueue [2021-11-21 01:52:41,179 INFO L130 BoogieDeclarations]: Found specification of procedure ar5523_cmd_read [2021-11-21 01:52:41,180 INFO L138 BoogieDeclarations]: Found implementation of procedure ar5523_cmd_read [2021-11-21 01:52:41,180 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_unlock [2021-11-21 01:52:41,180 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_unlock [2021-11-21 01:52:41,180 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_131 [2021-11-21 01:52:41,180 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_131 [2021-11-21 01:52:41,180 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_bulk_urb [2021-11-21 01:52:41,180 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_bulk_urb [2021-11-21 01:52:41,180 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_spinlock_spin_lock_tx_data_list_lock_of_ar5523 [2021-11-21 01:52:41,181 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_spinlock_spin_lock_tx_data_list_lock_of_ar5523 [2021-11-21 01:52:41,181 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2021-11-21 01:52:41,181 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2021-11-21 01:52:41,181 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-21 01:52:41,181 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-21 01:52:41,181 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_sock_check_final_state [2021-11-21 01:52:41,181 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_sock_check_final_state [2021-11-21 01:52:41,182 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_urb_usb_free_urb [2021-11-21 01:52:41,182 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_urb_usb_free_urb [2021-11-21 01:52:41,182 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_gadget_check_final_state [2021-11-21 01:52:41,182 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_gadget_check_final_state [2021-11-21 01:52:41,182 INFO L130 BoogieDeclarations]: Found specification of procedure ar5523_free_rx_cmd [2021-11-21 01:52:41,182 INFO L138 BoogieDeclarations]: Found implementation of procedure ar5523_free_rx_cmd [2021-11-21 01:52:41,182 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-21 01:52:41,183 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-11-21 01:52:41,183 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-11-21 01:52:41,183 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_fs_sysfs_check_final_state [2021-11-21 01:52:41,183 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_fs_sysfs_check_final_state [2021-11-21 01:52:41,183 INFO L130 BoogieDeclarations]: Found specification of procedure ar5523_switch_chan [2021-11-21 01:52:41,183 INFO L138 BoogieDeclarations]: Found implementation of procedure ar5523_switch_chan [2021-11-21 01:52:41,183 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_find_sta [2021-11-21 01:52:41,183 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_find_sta [2021-11-21 01:52:41,184 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-21 01:52:41,184 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_coherent_usb_free_coherent [2021-11-21 01:52:41,184 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_coherent_usb_free_coherent [2021-11-21 01:52:41,184 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-21 01:52:41,184 INFO L130 BoogieDeclarations]: Found specification of procedure ar5523_tx_work_locked [2021-11-21 01:52:41,184 INFO L138 BoogieDeclarations]: Found implementation of procedure ar5523_tx_work_locked [2021-11-21 01:52:41,184 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2021-11-21 01:52:41,185 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2021-11-21 01:52:41,185 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_rtnetlink_check_final_state [2021-11-21 01:52:41,185 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_rtnetlink_check_final_state [2021-11-21 01:52:41,185 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2021-11-21 01:52:41,187 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2021-11-21 01:52:41,187 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-21 01:52:41,187 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-21 01:52:41,188 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2021-11-21 01:52:41,188 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2021-11-21 01:52:41,188 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2021-11-21 01:52:41,188 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2021-11-21 01:52:41,188 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_alloc_usb_lock_check_alloc_flags [2021-11-21 01:52:41,188 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_alloc_usb_lock_check_alloc_flags [2021-11-21 01:52:41,189 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_urb_usb_alloc_urb [2021-11-21 01:52:41,189 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_urb_usb_alloc_urb [2021-11-21 01:52:41,189 INFO L130 BoogieDeclarations]: Found specification of procedure usb_bulk_msg [2021-11-21 01:52:41,190 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_bulk_msg [2021-11-21 01:52:41,204 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_check_final_state [2021-11-21 01:52:41,205 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_check_final_state [2021-11-21 01:52:41,205 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2021-11-21 01:52:41,205 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2021-11-21 01:52:41,205 INFO L130 BoogieDeclarations]: Found specification of procedure ar5523_stop [2021-11-21 01:52:41,205 INFO L138 BoogieDeclarations]: Found implementation of procedure ar5523_stop [2021-11-21 01:52:41,205 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_urb_check_final_state [2021-11-21 01:52:41,206 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_urb_check_final_state [2021-11-21 01:52:41,206 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_linux_kernel_locking_spinlock_spin_lock [2021-11-21 01:52:41,206 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_linux_kernel_locking_spinlock_spin_lock [2021-11-21 01:52:41,206 INFO L130 BoogieDeclarations]: Found specification of procedure ar5523_flush_tx [2021-11-21 01:52:41,206 INFO L138 BoogieDeclarations]: Found implementation of procedure ar5523_flush_tx [2021-11-21 01:52:41,206 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2021-11-21 01:52:41,206 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2021-11-21 01:52:41,206 INFO L130 BoogieDeclarations]: Found specification of procedure ar5523_cancel_rx_bufs [2021-11-21 01:52:41,207 INFO L138 BoogieDeclarations]: Found implementation of procedure ar5523_cancel_rx_bufs [2021-11-21 01:52:41,207 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-11-21 01:52:41,207 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-11-21 01:52:41,207 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_rwlock_check_final_state [2021-11-21 01:52:41,207 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_rwlock_check_final_state [2021-11-21 01:52:41,207 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-21 01:52:41,207 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-21 01:52:41,208 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2021-11-21 01:52:41,208 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2021-11-21 01:52:41,208 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-21 01:52:41,208 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_fs_char_dev_check_final_state [2021-11-21 01:52:41,208 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_fs_char_dev_check_final_state [2021-11-21 01:52:41,208 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-21 01:52:41,208 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-21 01:52:41,208 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_drivers_base_class_check_final_state [2021-11-21 01:52:41,209 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_drivers_base_class_check_final_state [2021-11-21 01:52:41,209 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2021-11-21 01:52:41,209 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2021-11-21 01:52:41,209 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_lock [2021-11-21 01:52:41,209 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_lock [2021-11-21 01:52:41,209 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec [2021-11-21 01:52:41,209 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec [2021-11-21 01:52:41,210 INFO L130 BoogieDeclarations]: Found specification of procedure ar5523_free_tx_cmd [2021-11-21 01:52:41,210 INFO L138 BoogieDeclarations]: Found implementation of procedure ar5523_free_tx_cmd [2021-11-21 01:52:41,210 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-21 01:52:41,210 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-21 01:52:41,210 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_add_return [2021-11-21 01:52:41,210 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_add_return [2021-11-21 01:52:41,210 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_sched_check_final_state [2021-11-21 01:52:41,211 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_sched_check_final_state [2021-11-21 01:52:41,211 INFO L130 BoogieDeclarations]: Found specification of procedure init_timer_key [2021-11-21 01:52:41,211 INFO L138 BoogieDeclarations]: Found implementation of procedure init_timer_key [2021-11-21 01:52:41,211 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_rtnetlink_past_rtnl_unlock [2021-11-21 01:52:41,211 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_rtnetlink_past_rtnl_unlock [2021-11-21 01:52:41,211 INFO L130 BoogieDeclarations]: Found specification of procedure delayed_work_timer_fn [2021-11-21 01:52:41,211 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-21 01:52:41,211 INFO L130 BoogieDeclarations]: Found specification of procedure ar5523_cmd [2021-11-21 01:52:41,212 INFO L138 BoogieDeclarations]: Found implementation of procedure ar5523_cmd [2021-11-21 01:52:41,212 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work [2021-11-21 01:52:41,212 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work [2021-11-21 01:52:41,212 INFO L130 BoogieDeclarations]: Found specification of procedure IEEE80211_SKB_CB [2021-11-21 01:52:41,212 INFO L138 BoogieDeclarations]: Found implementation of procedure IEEE80211_SKB_CB [2021-11-21 01:52:42,066 INFO L236 CfgBuilder]: Building ICFG [2021-11-21 01:52:42,069 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-21 01:52:42,287 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-21 01:52:49,825 INFO L277 CfgBuilder]: Performing block encoding [2021-11-21 01:52:50,757 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-21 01:52:50,757 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-21 01:52:50,764 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 01:52:50 BoogieIcfgContainer [2021-11-21 01:52:50,764 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-21 01:52:50,767 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-21 01:52:50,767 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-21 01:52:50,771 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-21 01:52:50,771 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 01:52:32" (1/3) ... [2021-11-21 01:52:50,772 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@161a47e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 01:52:50, skipping insertion in model container [2021-11-21 01:52:50,772 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:52:40" (2/3) ... [2021-11-21 01:52:50,773 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@161a47e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 01:52:50, skipping insertion in model container [2021-11-21 01:52:50,773 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 01:52:50" (3/3) ... [2021-11-21 01:52:50,774 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i [2021-11-21 01:52:50,781 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-21 01:52:50,781 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 34 error locations. [2021-11-21 01:52:50,877 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-21 01:52:50,884 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-21 01:52:50,885 INFO L340 AbstractCegarLoop]: Starting to check reachability of 34 error locations. [2021-11-21 01:52:50,955 INFO L276 IsEmpty]: Start isEmpty. Operand has 1499 states, 822 states have (on average 1.2652068126520681) internal successors, (1040), 877 states have internal predecessors, (1040), 520 states have call successors, (520), 123 states have call predecessors, (520), 122 states have return successors, (516), 514 states have call predecessors, (516), 516 states have call successors, (516) [2021-11-21 01:52:50,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-11-21 01:52:50,964 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:52:50,965 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:52:50,966 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_linux_arch_io_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2021-11-21 01:52:50,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:52:50,973 INFO L85 PathProgramCache]: Analyzing trace with hash -414966181, now seen corresponding path program 1 times [2021-11-21 01:52:50,984 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:52:50,985 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1713334590] [2021-11-21 01:52:50,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:52:50,986 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:52:51,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:52:52,445 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-21 01:52:52,446 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:52:52,446 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1713334590] [2021-11-21 01:52:52,447 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1713334590] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:52:52,447 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:52:52,448 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-21 01:52:52,450 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [769030063] [2021-11-21 01:52:52,450 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:52:52,456 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 01:52:52,469 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:52:52,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 01:52:52,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 01:52:52,508 INFO L87 Difference]: Start difference. First operand has 1499 states, 822 states have (on average 1.2652068126520681) internal successors, (1040), 877 states have internal predecessors, (1040), 520 states have call successors, (520), 123 states have call predecessors, (520), 122 states have return successors, (516), 514 states have call predecessors, (516), 516 states have call successors, (516) Second operand has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2021-11-21 01:52:55,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:52:55,442 INFO L93 Difference]: Finished difference Result 2938 states and 4266 transitions. [2021-11-21 01:52:55,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-21 01:52:55,445 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 51 [2021-11-21 01:52:55,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:52:55,483 INFO L225 Difference]: With dead ends: 2938 [2021-11-21 01:52:55,483 INFO L226 Difference]: Without dead ends: 1485 [2021-11-21 01:52:55,503 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-21 01:52:55,507 INFO L933 BasicCegarLoop]: 1780 mSDtfsCounter, 2017 mSDsluCounter, 2036 mSDsCounter, 0 mSdLazyCounter, 515 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2019 SdHoareTripleChecker+Valid, 3560 SdHoareTripleChecker+Invalid, 515 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 515 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2021-11-21 01:52:55,508 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2019 Valid, 3560 Invalid, 515 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 515 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2021-11-21 01:52:55,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1485 states. [2021-11-21 01:52:55,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1485 to 1485. [2021-11-21 01:52:55,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1485 states, 815 states have (on average 1.2196319018404909) internal successors, (994), 866 states have internal predecessors, (994), 516 states have call successors, (516), 122 states have call predecessors, (516), 121 states have return successors, (514), 512 states have call predecessors, (514), 514 states have call successors, (514) [2021-11-21 01:52:55,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1485 states to 1485 states and 2024 transitions. [2021-11-21 01:52:55,720 INFO L78 Accepts]: Start accepts. Automaton has 1485 states and 2024 transitions. Word has length 51 [2021-11-21 01:52:55,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:52:55,722 INFO L470 AbstractCegarLoop]: Abstraction has 1485 states and 2024 transitions. [2021-11-21 01:52:55,723 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2021-11-21 01:52:55,723 INFO L276 IsEmpty]: Start isEmpty. Operand 1485 states and 2024 transitions. [2021-11-21 01:52:55,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-11-21 01:52:55,727 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:52:55,727 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:52:55,728 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-21 01:52:55,728 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_linux_block_genhd_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2021-11-21 01:52:55,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:52:55,729 INFO L85 PathProgramCache]: Analyzing trace with hash 1821290645, now seen corresponding path program 1 times [2021-11-21 01:52:55,729 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:52:55,730 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1826626165] [2021-11-21 01:52:55,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:52:55,730 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:52:56,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:52:56,515 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-21 01:52:56,515 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:52:56,515 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1826626165] [2021-11-21 01:52:56,516 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1826626165] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:52:56,516 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:52:56,516 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-21 01:52:56,516 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1648227543] [2021-11-21 01:52:56,517 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:52:56,518 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 01:52:56,519 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:52:56,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 01:52:56,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 01:52:56,520 INFO L87 Difference]: Start difference. First operand 1485 states and 2024 transitions. Second operand has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2021-11-21 01:52:59,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:52:59,197 INFO L93 Difference]: Finished difference Result 1485 states and 2024 transitions. [2021-11-21 01:52:59,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-21 01:52:59,198 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 56 [2021-11-21 01:52:59,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:52:59,216 INFO L225 Difference]: With dead ends: 1485 [2021-11-21 01:52:59,216 INFO L226 Difference]: Without dead ends: 1483 [2021-11-21 01:52:59,218 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-21 01:52:59,219 INFO L933 BasicCegarLoop]: 1764 mSDtfsCounter, 1999 mSDsluCounter, 2019 mSDsCounter, 0 mSdLazyCounter, 513 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2001 SdHoareTripleChecker+Valid, 3528 SdHoareTripleChecker+Invalid, 513 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 513 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2021-11-21 01:52:59,220 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2001 Valid, 3528 Invalid, 513 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 513 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2021-11-21 01:52:59,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1483 states. [2021-11-21 01:52:59,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1483 to 1483. [2021-11-21 01:52:59,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1483 states, 814 states have (on average 1.2186732186732188) internal successors, (992), 864 states have internal predecessors, (992), 516 states have call successors, (516), 122 states have call predecessors, (516), 121 states have return successors, (514), 512 states have call predecessors, (514), 514 states have call successors, (514) [2021-11-21 01:52:59,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1483 states to 1483 states and 2022 transitions. [2021-11-21 01:52:59,343 INFO L78 Accepts]: Start accepts. Automaton has 1483 states and 2022 transitions. Word has length 56 [2021-11-21 01:52:59,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:52:59,344 INFO L470 AbstractCegarLoop]: Abstraction has 1483 states and 2022 transitions. [2021-11-21 01:52:59,344 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2021-11-21 01:52:59,345 INFO L276 IsEmpty]: Start isEmpty. Operand 1483 states and 2022 transitions. [2021-11-21 01:52:59,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-11-21 01:52:59,348 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:52:59,349 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:52:59,349 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-21 01:52:59,349 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_linux_block_queue_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2021-11-21 01:52:59,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:52:59,350 INFO L85 PathProgramCache]: Analyzing trace with hash 1856863304, now seen corresponding path program 1 times [2021-11-21 01:52:59,350 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:52:59,351 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1098401781] [2021-11-21 01:52:59,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:52:59,351 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:52:59,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:53:00,042 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-21 01:53:00,043 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:53:00,043 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1098401781] [2021-11-21 01:53:00,043 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1098401781] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:53:00,043 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:53:00,044 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-21 01:53:00,044 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1096390813] [2021-11-21 01:53:00,044 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:53:00,045 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 01:53:00,045 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:53:00,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 01:53:00,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 01:53:00,046 INFO L87 Difference]: Start difference. First operand 1483 states and 2022 transitions. Second operand has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-11-21 01:53:02,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:53:02,299 INFO L93 Difference]: Finished difference Result 1483 states and 2022 transitions. [2021-11-21 01:53:02,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-21 01:53:02,300 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 61 [2021-11-21 01:53:02,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:53:02,316 INFO L225 Difference]: With dead ends: 1483 [2021-11-21 01:53:02,316 INFO L226 Difference]: Without dead ends: 1481 [2021-11-21 01:53:02,318 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-21 01:53:02,319 INFO L933 BasicCegarLoop]: 1762 mSDtfsCounter, 1996 mSDsluCounter, 2017 mSDsCounter, 0 mSdLazyCounter, 513 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1998 SdHoareTripleChecker+Valid, 3524 SdHoareTripleChecker+Invalid, 513 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 513 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2021-11-21 01:53:02,320 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1998 Valid, 3524 Invalid, 513 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 513 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2021-11-21 01:53:02,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1481 states. [2021-11-21 01:53:02,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1481 to 1481. [2021-11-21 01:53:02,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1481 states, 813 states have (on average 1.2177121771217712) internal successors, (990), 862 states have internal predecessors, (990), 516 states have call successors, (516), 122 states have call predecessors, (516), 121 states have return successors, (514), 512 states have call predecessors, (514), 514 states have call successors, (514) [2021-11-21 01:53:02,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1481 states to 1481 states and 2020 transitions. [2021-11-21 01:53:02,440 INFO L78 Accepts]: Start accepts. Automaton has 1481 states and 2020 transitions. Word has length 61 [2021-11-21 01:53:02,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:53:02,441 INFO L470 AbstractCegarLoop]: Abstraction has 1481 states and 2020 transitions. [2021-11-21 01:53:02,442 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-11-21 01:53:02,442 INFO L276 IsEmpty]: Start isEmpty. Operand 1481 states and 2020 transitions. [2021-11-21 01:53:02,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-11-21 01:53:02,444 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:53:02,445 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:53:02,445 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-21 01:53:02,446 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_linux_block_request_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2021-11-21 01:53:02,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:53:02,446 INFO L85 PathProgramCache]: Analyzing trace with hash 1974470615, now seen corresponding path program 1 times [2021-11-21 01:53:02,447 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:53:02,447 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [655641102] [2021-11-21 01:53:02,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:53:02,447 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:53:02,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:53:02,950 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-21 01:53:02,950 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:53:02,950 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [655641102] [2021-11-21 01:53:02,951 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [655641102] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:53:02,951 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:53:02,951 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-21 01:53:02,951 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [149782349] [2021-11-21 01:53:02,952 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:53:02,952 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 01:53:02,952 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:53:02,953 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 01:53:02,953 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 01:53:02,954 INFO L87 Difference]: Start difference. First operand 1481 states and 2020 transitions. Second operand has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-11-21 01:53:05,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:53:05,505 INFO L93 Difference]: Finished difference Result 1481 states and 2020 transitions. [2021-11-21 01:53:05,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-21 01:53:05,506 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 66 [2021-11-21 01:53:05,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:53:05,519 INFO L225 Difference]: With dead ends: 1481 [2021-11-21 01:53:05,520 INFO L226 Difference]: Without dead ends: 1479 [2021-11-21 01:53:05,521 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-21 01:53:05,522 INFO L933 BasicCegarLoop]: 1760 mSDtfsCounter, 1993 mSDsluCounter, 2015 mSDsCounter, 0 mSdLazyCounter, 513 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1995 SdHoareTripleChecker+Valid, 3520 SdHoareTripleChecker+Invalid, 513 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 513 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2021-11-21 01:53:05,522 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1995 Valid, 3520 Invalid, 513 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 513 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2021-11-21 01:53:05,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1479 states. [2021-11-21 01:53:05,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1479 to 1479. [2021-11-21 01:53:05,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1479 states, 812 states have (on average 1.2167487684729064) internal successors, (988), 860 states have internal predecessors, (988), 516 states have call successors, (516), 122 states have call predecessors, (516), 121 states have return successors, (514), 512 states have call predecessors, (514), 514 states have call successors, (514) [2021-11-21 01:53:05,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1479 states to 1479 states and 2018 transitions. [2021-11-21 01:53:05,621 INFO L78 Accepts]: Start accepts. Automaton has 1479 states and 2018 transitions. Word has length 66 [2021-11-21 01:53:05,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:53:05,622 INFO L470 AbstractCegarLoop]: Abstraction has 1479 states and 2018 transitions. [2021-11-21 01:53:05,622 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-11-21 01:53:05,622 INFO L276 IsEmpty]: Start isEmpty. Operand 1479 states and 2018 transitions. [2021-11-21 01:53:05,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-11-21 01:53:05,624 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:53:05,624 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:53:05,624 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-21 01:53:05,625 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_linux_drivers_base_class_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2021-11-21 01:53:05,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:53:05,625 INFO L85 PathProgramCache]: Analyzing trace with hash 1835489581, now seen corresponding path program 1 times [2021-11-21 01:53:05,626 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:53:05,626 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1301851785] [2021-11-21 01:53:05,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:53:05,626 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:53:05,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:53:06,028 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-21 01:53:06,028 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:53:06,028 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1301851785] [2021-11-21 01:53:06,029 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1301851785] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:53:06,029 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:53:06,029 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-21 01:53:06,029 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1744953767] [2021-11-21 01:53:06,030 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:53:06,031 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 01:53:06,032 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:53:06,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 01:53:06,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 01:53:06,032 INFO L87 Difference]: Start difference. First operand 1479 states and 2018 transitions. Second operand has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-11-21 01:53:08,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:53:08,348 INFO L93 Difference]: Finished difference Result 1479 states and 2018 transitions. [2021-11-21 01:53:08,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-21 01:53:08,349 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 71 [2021-11-21 01:53:08,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:53:08,366 INFO L225 Difference]: With dead ends: 1479 [2021-11-21 01:53:08,366 INFO L226 Difference]: Without dead ends: 1477 [2021-11-21 01:53:08,367 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-21 01:53:08,369 INFO L933 BasicCegarLoop]: 1758 mSDtfsCounter, 1990 mSDsluCounter, 2013 mSDsCounter, 0 mSdLazyCounter, 513 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1992 SdHoareTripleChecker+Valid, 3516 SdHoareTripleChecker+Invalid, 513 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 513 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2021-11-21 01:53:08,370 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1992 Valid, 3516 Invalid, 513 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 513 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2021-11-21 01:53:08,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1477 states. [2021-11-21 01:53:08,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1477 to 1477. [2021-11-21 01:53:08,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1477 states, 811 states have (on average 1.2157829839704068) internal successors, (986), 858 states have internal predecessors, (986), 516 states have call successors, (516), 122 states have call predecessors, (516), 121 states have return successors, (514), 512 states have call predecessors, (514), 514 states have call successors, (514) [2021-11-21 01:53:08,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1477 states to 1477 states and 2016 transitions. [2021-11-21 01:53:08,493 INFO L78 Accepts]: Start accepts. Automaton has 1477 states and 2016 transitions. Word has length 71 [2021-11-21 01:53:08,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:53:08,494 INFO L470 AbstractCegarLoop]: Abstraction has 1477 states and 2016 transitions. [2021-11-21 01:53:08,494 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-11-21 01:53:08,494 INFO L276 IsEmpty]: Start isEmpty. Operand 1477 states and 2016 transitions. [2021-11-21 01:53:08,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2021-11-21 01:53:08,497 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:53:08,497 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:53:08,497 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-21 01:53:08,498 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_linux_fs_char_dev_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2021-11-21 01:53:08,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:53:08,500 INFO L85 PathProgramCache]: Analyzing trace with hash -1911135740, now seen corresponding path program 1 times [2021-11-21 01:53:08,500 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:53:08,500 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1700627603] [2021-11-21 01:53:08,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:53:08,500 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:53:08,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:53:08,920 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-21 01:53:08,921 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:53:08,921 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1700627603] [2021-11-21 01:53:08,921 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1700627603] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:53:08,921 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:53:08,921 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-21 01:53:08,922 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1235664630] [2021-11-21 01:53:08,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:53:08,922 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 01:53:08,923 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:53:08,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 01:53:08,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 01:53:08,924 INFO L87 Difference]: Start difference. First operand 1477 states and 2016 transitions. Second operand has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-11-21 01:53:10,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:53:10,741 INFO L93 Difference]: Finished difference Result 1477 states and 2016 transitions. [2021-11-21 01:53:10,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-21 01:53:10,742 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 76 [2021-11-21 01:53:10,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:53:10,755 INFO L225 Difference]: With dead ends: 1477 [2021-11-21 01:53:10,755 INFO L226 Difference]: Without dead ends: 1475 [2021-11-21 01:53:10,756 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-21 01:53:10,757 INFO L933 BasicCegarLoop]: 1756 mSDtfsCounter, 1987 mSDsluCounter, 2011 mSDsCounter, 0 mSdLazyCounter, 513 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1989 SdHoareTripleChecker+Valid, 3512 SdHoareTripleChecker+Invalid, 513 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 513 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2021-11-21 01:53:10,757 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1989 Valid, 3512 Invalid, 513 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 513 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2021-11-21 01:53:10,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1475 states. [2021-11-21 01:53:10,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1475 to 1475. [2021-11-21 01:53:10,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1475 states, 810 states have (on average 1.2148148148148148) internal successors, (984), 856 states have internal predecessors, (984), 516 states have call successors, (516), 122 states have call predecessors, (516), 121 states have return successors, (514), 512 states have call predecessors, (514), 514 states have call successors, (514) [2021-11-21 01:53:10,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1475 states to 1475 states and 2014 transitions. [2021-11-21 01:53:10,856 INFO L78 Accepts]: Start accepts. Automaton has 1475 states and 2014 transitions. Word has length 76 [2021-11-21 01:53:10,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:53:10,857 INFO L470 AbstractCegarLoop]: Abstraction has 1475 states and 2014 transitions. [2021-11-21 01:53:10,858 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-11-21 01:53:10,858 INFO L276 IsEmpty]: Start isEmpty. Operand 1475 states and 2014 transitions. [2021-11-21 01:53:10,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2021-11-21 01:53:10,859 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:53:10,860 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:53:10,860 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-21 01:53:10,860 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2021-11-21 01:53:10,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:53:10,861 INFO L85 PathProgramCache]: Analyzing trace with hash -1621416132, now seen corresponding path program 1 times [2021-11-21 01:53:10,861 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:53:10,861 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [721280382] [2021-11-21 01:53:10,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:53:10,861 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:53:11,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:53:11,203 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-21 01:53:11,203 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:53:11,203 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [721280382] [2021-11-21 01:53:11,204 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [721280382] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:53:11,204 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:53:11,204 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-21 01:53:11,204 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1024648051] [2021-11-21 01:53:11,204 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:53:11,205 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 01:53:11,205 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:53:11,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 01:53:11,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 01:53:11,206 INFO L87 Difference]: Start difference. First operand 1475 states and 2014 transitions. Second operand has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-11-21 01:53:13,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:53:13,054 INFO L93 Difference]: Finished difference Result 1475 states and 2014 transitions. [2021-11-21 01:53:13,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-21 01:53:13,057 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 81 [2021-11-21 01:53:13,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:53:13,068 INFO L225 Difference]: With dead ends: 1475 [2021-11-21 01:53:13,068 INFO L226 Difference]: Without dead ends: 1473 [2021-11-21 01:53:13,069 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-21 01:53:13,072 INFO L933 BasicCegarLoop]: 1754 mSDtfsCounter, 1984 mSDsluCounter, 2009 mSDsCounter, 0 mSdLazyCounter, 513 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1986 SdHoareTripleChecker+Valid, 3508 SdHoareTripleChecker+Invalid, 513 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 513 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2021-11-21 01:53:13,072 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1986 Valid, 3508 Invalid, 513 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 513 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2021-11-21 01:53:13,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1473 states. [2021-11-21 01:53:13,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1473 to 1473. [2021-11-21 01:53:13,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1473 states, 809 states have (on average 1.2138442521631645) internal successors, (982), 854 states have internal predecessors, (982), 516 states have call successors, (516), 122 states have call predecessors, (516), 121 states have return successors, (514), 512 states have call predecessors, (514), 514 states have call successors, (514) [2021-11-21 01:53:13,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1473 states to 1473 states and 2012 transitions. [2021-11-21 01:53:13,175 INFO L78 Accepts]: Start accepts. Automaton has 1473 states and 2012 transitions. Word has length 81 [2021-11-21 01:53:13,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:53:13,177 INFO L470 AbstractCegarLoop]: Abstraction has 1473 states and 2012 transitions. [2021-11-21 01:53:13,177 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-11-21 01:53:13,178 INFO L276 IsEmpty]: Start isEmpty. Operand 1473 states and 2012 transitions. [2021-11-21 01:53:13,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2021-11-21 01:53:13,181 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:53:13,181 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:53:13,181 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-21 01:53:13,182 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_linux_kernel_locking_rwlock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2021-11-21 01:53:13,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:53:13,183 INFO L85 PathProgramCache]: Analyzing trace with hash 895063959, now seen corresponding path program 1 times [2021-11-21 01:53:13,183 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:53:13,184 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1333676057] [2021-11-21 01:53:13,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:53:13,184 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:53:13,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:53:13,512 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-21 01:53:13,512 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:53:13,513 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1333676057] [2021-11-21 01:53:13,513 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1333676057] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:53:13,513 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:53:13,513 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-21 01:53:13,513 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1695914595] [2021-11-21 01:53:13,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:53:13,515 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 01:53:13,515 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:53:13,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 01:53:13,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 01:53:13,516 INFO L87 Difference]: Start difference. First operand 1473 states and 2012 transitions. Second operand has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2021-11-21 01:53:15,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:53:15,153 INFO L93 Difference]: Finished difference Result 1473 states and 2012 transitions. [2021-11-21 01:53:15,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-21 01:53:15,154 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 86 [2021-11-21 01:53:15,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:53:15,165 INFO L225 Difference]: With dead ends: 1473 [2021-11-21 01:53:15,165 INFO L226 Difference]: Without dead ends: 1471 [2021-11-21 01:53:15,167 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-21 01:53:15,167 INFO L933 BasicCegarLoop]: 1752 mSDtfsCounter, 1985 mSDsluCounter, 2003 mSDsCounter, 0 mSdLazyCounter, 513 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1987 SdHoareTripleChecker+Valid, 3500 SdHoareTripleChecker+Invalid, 513 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 513 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2021-11-21 01:53:15,168 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1987 Valid, 3500 Invalid, 513 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 513 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2021-11-21 01:53:15,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1471 states. [2021-11-21 01:53:15,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1471 to 1471. [2021-11-21 01:53:15,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1471 states, 808 states have (on average 1.2128712871287128) internal successors, (980), 852 states have internal predecessors, (980), 516 states have call successors, (516), 122 states have call predecessors, (516), 121 states have return successors, (514), 512 states have call predecessors, (514), 514 states have call successors, (514) [2021-11-21 01:53:15,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1471 states to 1471 states and 2010 transitions. [2021-11-21 01:53:15,267 INFO L78 Accepts]: Start accepts. Automaton has 1471 states and 2010 transitions. Word has length 86 [2021-11-21 01:53:15,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:53:15,268 INFO L470 AbstractCegarLoop]: Abstraction has 1471 states and 2010 transitions. [2021-11-21 01:53:15,268 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2021-11-21 01:53:15,268 INFO L276 IsEmpty]: Start isEmpty. Operand 1471 states and 2010 transitions. [2021-11-21 01:53:15,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-11-21 01:53:15,270 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:53:15,270 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:53:15,270 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-21 01:53:15,270 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_linux_kernel_locking_rwlock_check_final_stateErr1ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2021-11-21 01:53:15,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:53:15,271 INFO L85 PathProgramCache]: Analyzing trace with hash 1163144122, now seen corresponding path program 1 times [2021-11-21 01:53:15,271 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:53:15,271 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [725778933] [2021-11-21 01:53:15,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:53:15,272 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:53:15,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:53:15,630 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-21 01:53:15,630 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:53:15,630 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [725778933] [2021-11-21 01:53:15,631 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [725778933] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:53:15,631 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:53:15,631 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-21 01:53:15,631 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2059354803] [2021-11-21 01:53:15,632 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:53:15,632 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 01:53:15,633 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:53:15,633 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 01:53:15,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 01:53:15,634 INFO L87 Difference]: Start difference. First operand 1471 states and 2010 transitions. Second operand has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2021-11-21 01:53:17,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:53:17,858 INFO L93 Difference]: Finished difference Result 1471 states and 2010 transitions. [2021-11-21 01:53:17,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-21 01:53:17,859 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 88 [2021-11-21 01:53:17,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:53:17,873 INFO L225 Difference]: With dead ends: 1471 [2021-11-21 01:53:17,874 INFO L226 Difference]: Without dead ends: 1469 [2021-11-21 01:53:17,875 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-21 01:53:17,877 INFO L933 BasicCegarLoop]: 1750 mSDtfsCounter, 1977 mSDsluCounter, 2005 mSDsCounter, 0 mSdLazyCounter, 513 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1979 SdHoareTripleChecker+Valid, 3500 SdHoareTripleChecker+Invalid, 513 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 513 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2021-11-21 01:53:17,877 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1979 Valid, 3500 Invalid, 513 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 513 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2021-11-21 01:53:17,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1469 states. [2021-11-21 01:53:17,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1469 to 1469. [2021-11-21 01:53:18,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1469 states, 807 states have (on average 1.211895910780669) internal successors, (978), 850 states have internal predecessors, (978), 516 states have call successors, (516), 122 states have call predecessors, (516), 121 states have return successors, (514), 512 states have call predecessors, (514), 514 states have call successors, (514) [2021-11-21 01:53:18,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1469 states to 1469 states and 2008 transitions. [2021-11-21 01:53:18,028 INFO L78 Accepts]: Start accepts. Automaton has 1469 states and 2008 transitions. Word has length 88 [2021-11-21 01:53:18,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:53:18,029 INFO L470 AbstractCegarLoop]: Abstraction has 1469 states and 2008 transitions. [2021-11-21 01:53:18,030 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2021-11-21 01:53:18,030 INFO L276 IsEmpty]: Start isEmpty. Operand 1469 states and 2008 transitions. [2021-11-21 01:53:18,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2021-11-21 01:53:18,031 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:53:18,031 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:53:18,031 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-21 01:53:18,031 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_linux_kernel_module_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2021-11-21 01:53:18,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:53:18,032 INFO L85 PathProgramCache]: Analyzing trace with hash 1456149210, now seen corresponding path program 1 times [2021-11-21 01:53:18,032 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:53:18,032 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1081324034] [2021-11-21 01:53:18,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:53:18,032 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:53:18,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:53:18,432 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-21 01:53:18,432 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:53:18,433 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1081324034] [2021-11-21 01:53:18,433 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1081324034] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:53:18,433 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:53:18,433 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-21 01:53:18,434 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2081888381] [2021-11-21 01:53:18,434 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:53:18,434 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 01:53:18,435 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:53:18,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 01:53:18,435 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 01:53:18,447 INFO L87 Difference]: Start difference. First operand 1469 states and 2008 transitions. Second operand has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-11-21 01:53:20,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:53:20,444 INFO L93 Difference]: Finished difference Result 1469 states and 2008 transitions. [2021-11-21 01:53:20,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-21 01:53:20,445 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 93 [2021-11-21 01:53:20,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:53:20,458 INFO L225 Difference]: With dead ends: 1469 [2021-11-21 01:53:20,458 INFO L226 Difference]: Without dead ends: 1467 [2021-11-21 01:53:20,459 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-21 01:53:20,461 INFO L933 BasicCegarLoop]: 1748 mSDtfsCounter, 1976 mSDsluCounter, 2003 mSDsCounter, 0 mSdLazyCounter, 513 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1978 SdHoareTripleChecker+Valid, 3496 SdHoareTripleChecker+Invalid, 513 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 513 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2021-11-21 01:53:20,463 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1978 Valid, 3496 Invalid, 513 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 513 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2021-11-21 01:53:20,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1467 states. [2021-11-21 01:53:20,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1467 to 1467. [2021-11-21 01:53:20,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1467 states, 806 states have (on average 1.2109181141439207) internal successors, (976), 848 states have internal predecessors, (976), 516 states have call successors, (516), 122 states have call predecessors, (516), 121 states have return successors, (514), 512 states have call predecessors, (514), 514 states have call successors, (514) [2021-11-21 01:53:20,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1467 states to 1467 states and 2006 transitions. [2021-11-21 01:53:20,583 INFO L78 Accepts]: Start accepts. Automaton has 1467 states and 2006 transitions. Word has length 93 [2021-11-21 01:53:20,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:53:20,584 INFO L470 AbstractCegarLoop]: Abstraction has 1467 states and 2006 transitions. [2021-11-21 01:53:20,584 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-11-21 01:53:20,585 INFO L276 IsEmpty]: Start isEmpty. Operand 1467 states and 2006 transitions. [2021-11-21 01:53:20,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2021-11-21 01:53:20,587 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:53:20,587 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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] [2021-11-21 01:53:20,588 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-21 01:53:20,588 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2021-11-21 01:53:20,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:53:20,589 INFO L85 PathProgramCache]: Analyzing trace with hash -1246573561, now seen corresponding path program 1 times [2021-11-21 01:53:20,589 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:53:20,589 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1490100696] [2021-11-21 01:53:20,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:53:20,589 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:53:20,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:53:21,161 INFO L134 CoverageAnalysis]: Checked inductivity of 290 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 290 trivial. 0 not checked. [2021-11-21 01:53:21,161 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:53:21,162 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1490100696] [2021-11-21 01:53:21,162 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1490100696] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:53:21,162 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:53:21,162 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-21 01:53:21,163 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [819501626] [2021-11-21 01:53:21,163 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:53:21,163 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 01:53:21,163 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:53:21,164 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 01:53:21,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:53:21,164 INFO L87 Difference]: Start difference. First operand 1467 states and 2006 transitions. Second operand has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-11-21 01:53:22,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:53:22,685 INFO L93 Difference]: Finished difference Result 2067 states and 2727 transitions. [2021-11-21 01:53:22,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 01:53:22,686 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 122 [2021-11-21 01:53:22,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:53:22,699 INFO L225 Difference]: With dead ends: 2067 [2021-11-21 01:53:22,699 INFO L226 Difference]: Without dead ends: 1463 [2021-11-21 01:53:22,703 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:53:22,704 INFO L933 BasicCegarLoop]: 1744 mSDtfsCounter, 1992 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 257 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1992 SdHoareTripleChecker+Valid, 1744 SdHoareTripleChecker+Invalid, 258 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 257 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2021-11-21 01:53:22,704 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1992 Valid, 1744 Invalid, 258 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 257 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2021-11-21 01:53:22,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1463 states. [2021-11-21 01:53:22,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1463 to 1463. [2021-11-21 01:53:22,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1463 states, 803 states have (on average 1.2092154420921544) internal successors, (971), 844 states have internal predecessors, (971), 516 states have call successors, (516), 122 states have call predecessors, (516), 121 states have return successors, (514), 512 states have call predecessors, (514), 514 states have call successors, (514) [2021-11-21 01:53:22,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1463 states to 1463 states and 2001 transitions. [2021-11-21 01:53:22,830 INFO L78 Accepts]: Start accepts. Automaton has 1463 states and 2001 transitions. Word has length 122 [2021-11-21 01:53:22,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:53:22,831 INFO L470 AbstractCegarLoop]: Abstraction has 1463 states and 2001 transitions. [2021-11-21 01:53:22,832 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-11-21 01:53:22,832 INFO L276 IsEmpty]: Start isEmpty. Operand 1463 states and 2001 transitions. [2021-11-21 01:53:22,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2021-11-21 01:53:22,834 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:53:22,834 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:53:22,834 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-21 01:53:22,835 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_linux_kernel_rcu_update_lock_bh_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2021-11-21 01:53:22,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:53:22,835 INFO L85 PathProgramCache]: Analyzing trace with hash -1893980914, now seen corresponding path program 1 times [2021-11-21 01:53:22,836 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:53:22,836 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [900007101] [2021-11-21 01:53:22,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:53:22,836 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:53:23,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:53:23,302 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-21 01:53:23,303 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:53:23,303 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [900007101] [2021-11-21 01:53:23,303 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [900007101] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:53:23,303 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:53:23,304 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-21 01:53:23,304 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1211986157] [2021-11-21 01:53:23,304 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:53:23,305 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 01:53:23,305 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:53:23,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 01:53:23,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 01:53:23,306 INFO L87 Difference]: Start difference. First operand 1463 states and 2001 transitions. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-11-21 01:53:25,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:53:25,515 INFO L93 Difference]: Finished difference Result 1463 states and 2001 transitions. [2021-11-21 01:53:25,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-21 01:53:25,516 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 98 [2021-11-21 01:53:25,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:53:25,529 INFO L225 Difference]: With dead ends: 1463 [2021-11-21 01:53:25,529 INFO L226 Difference]: Without dead ends: 1461 [2021-11-21 01:53:25,530 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-21 01:53:25,531 INFO L933 BasicCegarLoop]: 1741 mSDtfsCounter, 1968 mSDsluCounter, 1996 mSDsCounter, 0 mSdLazyCounter, 513 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1970 SdHoareTripleChecker+Valid, 3482 SdHoareTripleChecker+Invalid, 513 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 513 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2021-11-21 01:53:25,532 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1970 Valid, 3482 Invalid, 513 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 513 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2021-11-21 01:53:25,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1461 states. [2021-11-21 01:53:25,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1461 to 1461. [2021-11-21 01:53:25,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1461 states, 802 states have (on average 1.2082294264339153) internal successors, (969), 842 states have internal predecessors, (969), 516 states have call successors, (516), 122 states have call predecessors, (516), 121 states have return successors, (514), 512 states have call predecessors, (514), 514 states have call successors, (514) [2021-11-21 01:53:25,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1461 states to 1461 states and 1999 transitions. [2021-11-21 01:53:25,667 INFO L78 Accepts]: Start accepts. Automaton has 1461 states and 1999 transitions. Word has length 98 [2021-11-21 01:53:25,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:53:25,668 INFO L470 AbstractCegarLoop]: Abstraction has 1461 states and 1999 transitions. [2021-11-21 01:53:25,668 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-11-21 01:53:25,669 INFO L276 IsEmpty]: Start isEmpty. Operand 1461 states and 1999 transitions. [2021-11-21 01:53:25,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2021-11-21 01:53:25,671 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:53:25,671 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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] [2021-11-21 01:53:25,672 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-21 01:53:25,672 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_linux_alloc_irq_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2021-11-21 01:53:25,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:53:25,673 INFO L85 PathProgramCache]: Analyzing trace with hash 1155461410, now seen corresponding path program 1 times [2021-11-21 01:53:25,673 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:53:25,673 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [195153765] [2021-11-21 01:53:25,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:53:25,673 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:53:25,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:53:26,300 INFO L134 CoverageAnalysis]: Checked inductivity of 290 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 290 trivial. 0 not checked. [2021-11-21 01:53:26,301 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:53:26,301 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [195153765] [2021-11-21 01:53:26,301 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [195153765] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:53:26,301 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:53:26,302 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-21 01:53:26,302 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2105865758] [2021-11-21 01:53:26,302 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:53:26,303 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-21 01:53:26,303 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:53:26,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-21 01:53:26,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-21 01:53:26,304 INFO L87 Difference]: Start difference. First operand 1461 states and 1999 transitions. Second operand has 6 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (15), 3 states have call predecessors, (15), 2 states have call successors, (15) [2021-11-21 01:53:32,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:53:32,460 INFO L93 Difference]: Finished difference Result 1465 states and 2001 transitions. [2021-11-21 01:53:32,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-21 01:53:32,461 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (15), 3 states have call predecessors, (15), 2 states have call successors, (15) Word has length 129 [2021-11-21 01:53:32,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:53:32,474 INFO L225 Difference]: With dead ends: 1465 [2021-11-21 01:53:32,475 INFO L226 Difference]: Without dead ends: 1463 [2021-11-21 01:53:32,476 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-11-21 01:53:32,477 INFO L933 BasicCegarLoop]: 1740 mSDtfsCounter, 1943 mSDsluCounter, 4964 mSDsCounter, 0 mSdLazyCounter, 2056 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1951 SdHoareTripleChecker+Valid, 5941 SdHoareTripleChecker+Invalid, 2058 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 2056 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2021-11-21 01:53:32,478 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1951 Valid, 5941 Invalid, 2058 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 2056 Invalid, 0 Unknown, 0 Unchecked, 5.9s Time] [2021-11-21 01:53:32,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1463 states. [2021-11-21 01:53:32,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1463 to 1463. [2021-11-21 01:53:32,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1463 states, 803 states have (on average 1.2067247820672478) internal successors, (969), 842 states have internal predecessors, (969), 516 states have call successors, (516), 124 states have call predecessors, (516), 123 states have return successors, (514), 512 states have call predecessors, (514), 514 states have call successors, (514) [2021-11-21 01:53:32,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1463 states to 1463 states and 1999 transitions. [2021-11-21 01:53:32,623 INFO L78 Accepts]: Start accepts. Automaton has 1463 states and 1999 transitions. Word has length 129 [2021-11-21 01:53:32,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:53:32,624 INFO L470 AbstractCegarLoop]: Abstraction has 1463 states and 1999 transitions. [2021-11-21 01:53:32,624 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (15), 3 states have call predecessors, (15), 2 states have call successors, (15) [2021-11-21 01:53:32,625 INFO L276 IsEmpty]: Start isEmpty. Operand 1463 states and 1999 transitions. [2021-11-21 01:53:32,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2021-11-21 01:53:32,628 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:53:32,628 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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] [2021-11-21 01:53:32,628 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-11-21 01:53:32,629 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2021-11-21 01:53:32,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:53:32,629 INFO L85 PathProgramCache]: Analyzing trace with hash 604265500, now seen corresponding path program 1 times [2021-11-21 01:53:32,630 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:53:32,630 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1837437454] [2021-11-21 01:53:32,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:53:32,630 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:53:32,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:53:33,187 INFO L134 CoverageAnalysis]: Checked inductivity of 292 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 291 trivial. 0 not checked. [2021-11-21 01:53:33,187 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:53:33,187 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1837437454] [2021-11-21 01:53:33,187 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1837437454] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-21 01:53:33,188 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1850045464] [2021-11-21 01:53:33,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:53:33,188 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:53:33,189 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_034ee5f8-7088-48e8-b22a-3b7cbc669243/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 01:53:33,191 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_034ee5f8-7088-48e8-b22a-3b7cbc669243/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 01:53:33,211 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_034ee5f8-7088-48e8-b22a-3b7cbc669243/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-21 01:53:34,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:53:34,839 INFO L263 TraceCheckSpWp]: Trace formula consists of 5875 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-21 01:53:34,860 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 01:53:35,153 INFO L134 CoverageAnalysis]: Checked inductivity of 292 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 290 trivial. 0 not checked. [2021-11-21 01:53:35,154 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-21 01:53:35,154 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1850045464] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:53:35,154 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-21 01:53:35,154 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2021-11-21 01:53:35,154 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [137952675] [2021-11-21 01:53:35,154 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:53:35,155 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 01:53:35,155 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:53:35,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 01:53:35,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-11-21 01:53:35,156 INFO L87 Difference]: Start difference. First operand 1463 states and 1999 transitions. Second operand has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-11-21 01:53:36,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:53:36,603 INFO L93 Difference]: Finished difference Result 2074 states and 2728 transitions. [2021-11-21 01:53:36,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 01:53:36,603 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 127 [2021-11-21 01:53:36,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:53:36,620 INFO L225 Difference]: With dead ends: 2074 [2021-11-21 01:53:36,620 INFO L226 Difference]: Without dead ends: 1481 [2021-11-21 01:53:36,624 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-11-21 01:53:36,625 INFO L933 BasicCegarLoop]: 1747 mSDtfsCounter, 1941 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 271 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1941 SdHoareTripleChecker+Valid, 1797 SdHoareTripleChecker+Invalid, 272 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 271 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2021-11-21 01:53:36,625 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1941 Valid, 1797 Invalid, 272 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 271 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2021-11-21 01:53:36,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1481 states. [2021-11-21 01:53:36,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1481 to 1479. [2021-11-21 01:53:36,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1479 states, 810 states have (on average 1.202469135802469) internal successors, (974), 849 states have internal predecessors, (974), 520 states have call successors, (520), 130 states have call predecessors, (520), 129 states have return successors, (518), 515 states have call predecessors, (518), 518 states have call successors, (518) [2021-11-21 01:53:36,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1479 states to 1479 states and 2012 transitions. [2021-11-21 01:53:36,779 INFO L78 Accepts]: Start accepts. Automaton has 1479 states and 2012 transitions. Word has length 127 [2021-11-21 01:53:36,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:53:36,780 INFO L470 AbstractCegarLoop]: Abstraction has 1479 states and 2012 transitions. [2021-11-21 01:53:36,781 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-11-21 01:53:36,781 INFO L276 IsEmpty]: Start isEmpty. Operand 1479 states and 2012 transitions. [2021-11-21 01:53:36,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2021-11-21 01:53:36,783 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:53:36,783 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:53:36,841 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_034ee5f8-7088-48e8-b22a-3b7cbc669243/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-21 01:53:37,009 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_034ee5f8-7088-48e8-b22a-3b7cbc669243/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:53:37,010 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_linux_kernel_rcu_update_lock_sched_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2021-11-21 01:53:37,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:53:37,010 INFO L85 PathProgramCache]: Analyzing trace with hash 1931142002, now seen corresponding path program 1 times [2021-11-21 01:53:37,010 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:53:37,010 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [999619190] [2021-11-21 01:53:37,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:53:37,011 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:53:37,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:53:37,414 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-21 01:53:37,414 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:53:37,414 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [999619190] [2021-11-21 01:53:37,414 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [999619190] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:53:37,415 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:53:37,415 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-21 01:53:37,415 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [450723924] [2021-11-21 01:53:37,415 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:53:37,416 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 01:53:37,416 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:53:37,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 01:53:37,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 01:53:37,417 INFO L87 Difference]: Start difference. First operand 1479 states and 2012 transitions. Second operand has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-11-21 01:53:39,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:53:39,671 INFO L93 Difference]: Finished difference Result 1479 states and 2012 transitions. [2021-11-21 01:53:39,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-21 01:53:39,672 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 103 [2021-11-21 01:53:39,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:53:39,685 INFO L225 Difference]: With dead ends: 1479 [2021-11-21 01:53:39,686 INFO L226 Difference]: Without dead ends: 1477 [2021-11-21 01:53:39,687 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-21 01:53:39,688 INFO L933 BasicCegarLoop]: 1732 mSDtfsCounter, 1958 mSDsluCounter, 1987 mSDsCounter, 0 mSdLazyCounter, 513 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1960 SdHoareTripleChecker+Valid, 3464 SdHoareTripleChecker+Invalid, 513 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 513 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2021-11-21 01:53:39,688 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1960 Valid, 3464 Invalid, 513 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 513 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2021-11-21 01:53:39,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1477 states. [2021-11-21 01:53:39,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1477 to 1477. [2021-11-21 01:53:39,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1477 states, 809 states have (on average 1.2014833127317677) internal successors, (972), 847 states have internal predecessors, (972), 520 states have call successors, (520), 130 states have call predecessors, (520), 129 states have return successors, (518), 515 states have call predecessors, (518), 518 states have call successors, (518) [2021-11-21 01:53:39,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1477 states to 1477 states and 2010 transitions. [2021-11-21 01:53:39,847 INFO L78 Accepts]: Start accepts. Automaton has 1477 states and 2010 transitions. Word has length 103 [2021-11-21 01:53:39,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:53:39,850 INFO L470 AbstractCegarLoop]: Abstraction has 1477 states and 2010 transitions. [2021-11-21 01:53:39,850 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-11-21 01:53:39,850 INFO L276 IsEmpty]: Start isEmpty. Operand 1477 states and 2010 transitions. [2021-11-21 01:53:39,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2021-11-21 01:53:39,853 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:53:39,853 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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] [2021-11-21 01:53:39,853 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-11-21 01:53:39,854 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2021-11-21 01:53:39,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:53:39,854 INFO L85 PathProgramCache]: Analyzing trace with hash -96501394, now seen corresponding path program 1 times [2021-11-21 01:53:39,855 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:53:39,855 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [497128319] [2021-11-21 01:53:39,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:53:39,855 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:53:40,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:53:40,285 INFO L134 CoverageAnalysis]: Checked inductivity of 290 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 290 trivial. 0 not checked. [2021-11-21 01:53:40,286 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:53:40,286 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [497128319] [2021-11-21 01:53:40,286 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [497128319] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:53:40,286 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:53:40,287 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-21 01:53:40,287 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1165056133] [2021-11-21 01:53:40,287 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:53:40,288 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 01:53:40,288 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:53:40,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 01:53:40,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:53:40,289 INFO L87 Difference]: Start difference. First operand 1477 states and 2010 transitions. Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-11-21 01:53:41,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:53:41,835 INFO L93 Difference]: Finished difference Result 2876 states and 4016 transitions. [2021-11-21 01:53:41,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 01:53:41,836 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 135 [2021-11-21 01:53:41,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:53:41,866 INFO L225 Difference]: With dead ends: 2876 [2021-11-21 01:53:41,866 INFO L226 Difference]: Without dead ends: 1473 [2021-11-21 01:53:41,877 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:53:41,878 INFO L933 BasicCegarLoop]: 1728 mSDtfsCounter, 1950 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 257 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1950 SdHoareTripleChecker+Valid, 1728 SdHoareTripleChecker+Invalid, 257 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 257 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2021-11-21 01:53:41,879 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1950 Valid, 1728 Invalid, 257 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 257 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2021-11-21 01:53:41,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1473 states. [2021-11-21 01:53:42,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1473 to 1473. [2021-11-21 01:53:42,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1473 states, 806 states have (on average 1.1997518610421836) internal successors, (967), 843 states have internal predecessors, (967), 520 states have call successors, (520), 130 states have call predecessors, (520), 129 states have return successors, (518), 515 states have call predecessors, (518), 518 states have call successors, (518) [2021-11-21 01:53:42,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1473 states to 1473 states and 2005 transitions. [2021-11-21 01:53:42,047 INFO L78 Accepts]: Start accepts. Automaton has 1473 states and 2005 transitions. Word has length 135 [2021-11-21 01:53:42,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:53:42,048 INFO L470 AbstractCegarLoop]: Abstraction has 1473 states and 2005 transitions. [2021-11-21 01:53:42,048 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-11-21 01:53:42,048 INFO L276 IsEmpty]: Start isEmpty. Operand 1473 states and 2005 transitions. [2021-11-21 01:53:42,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-11-21 01:53:42,051 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:53:42,051 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:53:42,051 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-11-21 01:53:42,052 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2021-11-21 01:53:42,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:53:42,053 INFO L85 PathProgramCache]: Analyzing trace with hash 1844608070, now seen corresponding path program 1 times [2021-11-21 01:53:42,053 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:53:42,053 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1465979763] [2021-11-21 01:53:42,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:53:42,054 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:53:42,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:53:42,450 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-21 01:53:42,451 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:53:42,451 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1465979763] [2021-11-21 01:53:42,451 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1465979763] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:53:42,452 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:53:42,452 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-21 01:53:42,452 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1720127523] [2021-11-21 01:53:42,452 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:53:42,454 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 01:53:42,455 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:53:42,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 01:53:42,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 01:53:42,456 INFO L87 Difference]: Start difference. First operand 1473 states and 2005 transitions. Second operand has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-11-21 01:53:44,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:53:44,956 INFO L93 Difference]: Finished difference Result 1473 states and 2005 transitions. [2021-11-21 01:53:44,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-21 01:53:44,957 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 108 [2021-11-21 01:53:44,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:53:44,969 INFO L225 Difference]: With dead ends: 1473 [2021-11-21 01:53:44,969 INFO L226 Difference]: Without dead ends: 1471 [2021-11-21 01:53:44,971 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-21 01:53:44,972 INFO L933 BasicCegarLoop]: 1725 mSDtfsCounter, 1950 mSDsluCounter, 1980 mSDsCounter, 0 mSdLazyCounter, 513 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1952 SdHoareTripleChecker+Valid, 3450 SdHoareTripleChecker+Invalid, 513 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 513 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2021-11-21 01:53:44,972 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1952 Valid, 3450 Invalid, 513 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 513 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2021-11-21 01:53:44,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1471 states. [2021-11-21 01:53:45,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1471 to 1471. [2021-11-21 01:53:45,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1471 states, 805 states have (on average 1.1987577639751552) internal successors, (965), 841 states have internal predecessors, (965), 520 states have call successors, (520), 130 states have call predecessors, (520), 129 states have return successors, (518), 515 states have call predecessors, (518), 518 states have call successors, (518) [2021-11-21 01:53:45,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1471 states to 1471 states and 2003 transitions. [2021-11-21 01:53:45,131 INFO L78 Accepts]: Start accepts. Automaton has 1471 states and 2003 transitions. Word has length 108 [2021-11-21 01:53:45,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:53:45,132 INFO L470 AbstractCegarLoop]: Abstraction has 1471 states and 2003 transitions. [2021-11-21 01:53:45,132 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-11-21 01:53:45,132 INFO L276 IsEmpty]: Start isEmpty. Operand 1471 states and 2003 transitions. [2021-11-21 01:53:45,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-11-21 01:53:45,134 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:53:45,135 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:53:45,136 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-11-21 01:53:45,136 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_linux_kernel_rcu_srcu_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2021-11-21 01:53:45,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:53:45,138 INFO L85 PathProgramCache]: Analyzing trace with hash -1913930720, now seen corresponding path program 1 times [2021-11-21 01:53:45,139 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:53:45,140 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1076740008] [2021-11-21 01:53:45,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:53:45,141 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:53:45,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:53:45,534 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-21 01:53:45,535 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:53:45,535 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1076740008] [2021-11-21 01:53:45,535 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1076740008] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:53:45,535 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:53:45,536 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-21 01:53:45,536 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [619578092] [2021-11-21 01:53:45,536 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:53:45,537 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 01:53:45,537 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:53:45,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 01:53:45,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 01:53:45,538 INFO L87 Difference]: Start difference. First operand 1471 states and 2003 transitions. Second operand has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2021-11-21 01:53:47,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:53:47,588 INFO L93 Difference]: Finished difference Result 1471 states and 2003 transitions. [2021-11-21 01:53:47,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-21 01:53:47,588 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 113 [2021-11-21 01:53:47,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:53:47,597 INFO L225 Difference]: With dead ends: 1471 [2021-11-21 01:53:47,597 INFO L226 Difference]: Without dead ends: 1469 [2021-11-21 01:53:47,598 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-21 01:53:47,599 INFO L933 BasicCegarLoop]: 1723 mSDtfsCounter, 1947 mSDsluCounter, 1978 mSDsCounter, 0 mSdLazyCounter, 513 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1949 SdHoareTripleChecker+Valid, 3446 SdHoareTripleChecker+Invalid, 513 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 513 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2021-11-21 01:53:47,600 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1949 Valid, 3446 Invalid, 513 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 513 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2021-11-21 01:53:47,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1469 states. [2021-11-21 01:53:47,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1469 to 1469. [2021-11-21 01:53:47,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1469 states, 804 states have (on average 1.1977611940298507) internal successors, (963), 839 states have internal predecessors, (963), 520 states have call successors, (520), 130 states have call predecessors, (520), 129 states have return successors, (518), 515 states have call predecessors, (518), 518 states have call successors, (518) [2021-11-21 01:53:47,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1469 states to 1469 states and 2001 transitions. [2021-11-21 01:53:47,735 INFO L78 Accepts]: Start accepts. Automaton has 1469 states and 2001 transitions. Word has length 113 [2021-11-21 01:53:47,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:53:47,735 INFO L470 AbstractCegarLoop]: Abstraction has 1469 states and 2001 transitions. [2021-11-21 01:53:47,736 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2021-11-21 01:53:47,736 INFO L276 IsEmpty]: Start isEmpty. Operand 1469 states and 2001 transitions. [2021-11-21 01:53:47,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2021-11-21 01:53:47,737 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:53:47,738 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:53:47,738 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-11-21 01:53:47,738 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_linux_lib_idr_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2021-11-21 01:53:47,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:53:47,739 INFO L85 PathProgramCache]: Analyzing trace with hash -1093787959, now seen corresponding path program 1 times [2021-11-21 01:53:47,739 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:53:47,739 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [916417608] [2021-11-21 01:53:47,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:53:47,739 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:53:47,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:53:48,089 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-21 01:53:48,090 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:53:48,090 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [916417608] [2021-11-21 01:53:48,090 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [916417608] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:53:48,090 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:53:48,091 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-21 01:53:48,091 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [510056525] [2021-11-21 01:53:48,091 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:53:48,092 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 01:53:48,092 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:53:48,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 01:53:48,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 01:53:48,093 INFO L87 Difference]: Start difference. First operand 1469 states and 2001 transitions. Second operand has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2021-11-21 01:53:49,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:53:49,882 INFO L93 Difference]: Finished difference Result 1469 states and 2001 transitions. [2021-11-21 01:53:49,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-21 01:53:49,882 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 118 [2021-11-21 01:53:49,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:53:49,891 INFO L225 Difference]: With dead ends: 1469 [2021-11-21 01:53:49,891 INFO L226 Difference]: Without dead ends: 1467 [2021-11-21 01:53:49,892 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-21 01:53:49,893 INFO L933 BasicCegarLoop]: 1721 mSDtfsCounter, 1944 mSDsluCounter, 1976 mSDsCounter, 0 mSdLazyCounter, 513 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1946 SdHoareTripleChecker+Valid, 3442 SdHoareTripleChecker+Invalid, 513 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 513 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2021-11-21 01:53:49,893 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1946 Valid, 3442 Invalid, 513 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 513 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2021-11-21 01:53:49,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1467 states. [2021-11-21 01:53:50,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1467 to 1467. [2021-11-21 01:53:50,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1467 states, 803 states have (on average 1.1967621419676213) internal successors, (961), 837 states have internal predecessors, (961), 520 states have call successors, (520), 130 states have call predecessors, (520), 129 states have return successors, (518), 515 states have call predecessors, (518), 518 states have call successors, (518) [2021-11-21 01:53:50,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1467 states to 1467 states and 1999 transitions. [2021-11-21 01:53:50,035 INFO L78 Accepts]: Start accepts. Automaton has 1467 states and 1999 transitions. Word has length 118 [2021-11-21 01:53:50,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:53:50,036 INFO L470 AbstractCegarLoop]: Abstraction has 1467 states and 1999 transitions. [2021-11-21 01:53:50,036 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2021-11-21 01:53:50,036 INFO L276 IsEmpty]: Start isEmpty. Operand 1467 states and 1999 transitions. [2021-11-21 01:53:50,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2021-11-21 01:53:50,038 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:53:50,038 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:53:50,038 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-11-21 01:53:50,039 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_linux_mmc_sdio_func_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2021-11-21 01:53:50,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:53:50,039 INFO L85 PathProgramCache]: Analyzing trace with hash 446493542, now seen corresponding path program 1 times [2021-11-21 01:53:50,039 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:53:50,039 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [250912392] [2021-11-21 01:53:50,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:53:50,040 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:53:50,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:53:50,348 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-21 01:53:50,348 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:53:50,348 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [250912392] [2021-11-21 01:53:50,349 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [250912392] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:53:50,349 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:53:50,349 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-21 01:53:50,349 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [134417493] [2021-11-21 01:53:50,349 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:53:50,350 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 01:53:50,350 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:53:50,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 01:53:50,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 01:53:50,351 INFO L87 Difference]: Start difference. First operand 1467 states and 1999 transitions. Second operand has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2021-11-21 01:53:51,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:53:51,978 INFO L93 Difference]: Finished difference Result 1467 states and 1999 transitions. [2021-11-21 01:53:51,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-21 01:53:51,987 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 123 [2021-11-21 01:53:51,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:53:51,998 INFO L225 Difference]: With dead ends: 1467 [2021-11-21 01:53:51,998 INFO L226 Difference]: Without dead ends: 1465 [2021-11-21 01:53:51,999 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-21 01:53:52,000 INFO L933 BasicCegarLoop]: 1719 mSDtfsCounter, 1941 mSDsluCounter, 1974 mSDsCounter, 0 mSdLazyCounter, 513 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1943 SdHoareTripleChecker+Valid, 3438 SdHoareTripleChecker+Invalid, 513 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 513 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2021-11-21 01:53:52,000 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1943 Valid, 3438 Invalid, 513 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 513 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2021-11-21 01:53:52,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1465 states. [2021-11-21 01:53:52,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1465 to 1465. [2021-11-21 01:53:52,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1465 states, 802 states have (on average 1.1957605985037407) internal successors, (959), 835 states have internal predecessors, (959), 520 states have call successors, (520), 130 states have call predecessors, (520), 129 states have return successors, (518), 515 states have call predecessors, (518), 518 states have call successors, (518) [2021-11-21 01:53:52,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1465 states to 1465 states and 1997 transitions. [2021-11-21 01:53:52,177 INFO L78 Accepts]: Start accepts. Automaton has 1465 states and 1997 transitions. Word has length 123 [2021-11-21 01:53:52,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:53:52,178 INFO L470 AbstractCegarLoop]: Abstraction has 1465 states and 1997 transitions. [2021-11-21 01:53:52,178 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2021-11-21 01:53:52,178 INFO L276 IsEmpty]: Start isEmpty. Operand 1465 states and 1997 transitions. [2021-11-21 01:53:52,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2021-11-21 01:53:52,180 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:53:52,180 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:53:52,181 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-11-21 01:53:52,181 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ldv_linux_net_rtnetlink_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2021-11-21 01:53:52,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:53:52,181 INFO L85 PathProgramCache]: Analyzing trace with hash 913955779, now seen corresponding path program 1 times [2021-11-21 01:53:52,182 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:53:52,182 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [944233519] [2021-11-21 01:53:52,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:53:52,182 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:53:52,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:53:52,527 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-21 01:53:52,527 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:53:52,527 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [944233519] [2021-11-21 01:53:52,528 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [944233519] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:53:52,528 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:53:52,528 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-21 01:53:52,528 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1222115164] [2021-11-21 01:53:52,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:53:52,531 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 01:53:52,531 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:53:52,531 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 01:53:52,531 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 01:53:52,532 INFO L87 Difference]: Start difference. First operand 1465 states and 1997 transitions. Second operand has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2021-11-21 01:53:54,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:53:54,393 INFO L93 Difference]: Finished difference Result 1765 states and 2362 transitions. [2021-11-21 01:53:54,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-21 01:53:54,394 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 128 [2021-11-21 01:53:54,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:53:54,401 INFO L225 Difference]: With dead ends: 1765 [2021-11-21 01:53:54,401 INFO L226 Difference]: Without dead ends: 1763 [2021-11-21 01:53:54,402 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-21 01:53:54,403 INFO L933 BasicCegarLoop]: 1807 mSDtfsCounter, 1879 mSDsluCounter, 2483 mSDsCounter, 0 mSdLazyCounter, 579 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1881 SdHoareTripleChecker+Valid, 3971 SdHoareTripleChecker+Invalid, 580 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 579 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2021-11-21 01:53:54,403 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1881 Valid, 3971 Invalid, 580 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 579 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2021-11-21 01:53:54,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1763 states. [2021-11-21 01:53:54,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1763 to 1753. [2021-11-21 01:53:54,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1753 states, 961 states have (on average 1.1831425598335068) internal successors, (1137), 993 states have internal predecessors, (1137), 610 states have call successors, (610), 170 states have call predecessors, (610), 169 states have return successors, (608), 605 states have call predecessors, (608), 608 states have call successors, (608) [2021-11-21 01:53:54,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1753 states to 1753 states and 2355 transitions. [2021-11-21 01:53:54,578 INFO L78 Accepts]: Start accepts. Automaton has 1753 states and 2355 transitions. Word has length 128 [2021-11-21 01:53:54,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:53:54,578 INFO L470 AbstractCegarLoop]: Abstraction has 1753 states and 2355 transitions. [2021-11-21 01:53:54,578 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2021-11-21 01:53:54,579 INFO L276 IsEmpty]: Start isEmpty. Operand 1753 states and 2355 transitions. [2021-11-21 01:53:54,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2021-11-21 01:53:54,581 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:53:54,581 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:53:54,581 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-11-21 01:53:54,582 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ldv_linux_net_sock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2021-11-21 01:53:54,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:53:54,582 INFO L85 PathProgramCache]: Analyzing trace with hash 2121150804, now seen corresponding path program 1 times [2021-11-21 01:53:54,582 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:53:54,583 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [303787612] [2021-11-21 01:53:54,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:53:54,583 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:53:54,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:53:54,908 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-21 01:53:54,908 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:53:54,908 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [303787612] [2021-11-21 01:53:54,909 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [303787612] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:53:54,909 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:53:54,909 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-21 01:53:54,909 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1502958707] [2021-11-21 01:53:54,909 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:53:54,911 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 01:53:54,911 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:53:54,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 01:53:54,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 01:53:54,912 INFO L87 Difference]: Start difference. First operand 1753 states and 2355 transitions. Second operand has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2021-11-21 01:53:56,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:53:56,766 INFO L93 Difference]: Finished difference Result 1753 states and 2355 transitions. [2021-11-21 01:53:56,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-21 01:53:56,767 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 133 [2021-11-21 01:53:56,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:53:56,774 INFO L225 Difference]: With dead ends: 1753 [2021-11-21 01:53:56,774 INFO L226 Difference]: Without dead ends: 1751 [2021-11-21 01:53:56,775 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-21 01:53:56,776 INFO L933 BasicCegarLoop]: 1715 mSDtfsCounter, 1935 mSDsluCounter, 1970 mSDsCounter, 0 mSdLazyCounter, 513 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1937 SdHoareTripleChecker+Valid, 3430 SdHoareTripleChecker+Invalid, 513 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 513 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2021-11-21 01:53:56,777 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1937 Valid, 3430 Invalid, 513 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 513 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2021-11-21 01:53:56,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1751 states. [2021-11-21 01:53:56,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1751 to 1751. [2021-11-21 01:53:56,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1751 states, 960 states have (on average 1.1822916666666667) internal successors, (1135), 991 states have internal predecessors, (1135), 610 states have call successors, (610), 170 states have call predecessors, (610), 169 states have return successors, (608), 605 states have call predecessors, (608), 608 states have call successors, (608) [2021-11-21 01:53:56,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1751 states to 1751 states and 2353 transitions. [2021-11-21 01:53:56,988 INFO L78 Accepts]: Start accepts. Automaton has 1751 states and 2353 transitions. Word has length 133 [2021-11-21 01:53:56,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:53:56,989 INFO L470 AbstractCegarLoop]: Abstraction has 1751 states and 2353 transitions. [2021-11-21 01:53:56,989 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2021-11-21 01:53:56,989 INFO L276 IsEmpty]: Start isEmpty. Operand 1751 states and 2353 transitions. [2021-11-21 01:53:56,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2021-11-21 01:53:56,992 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:53:56,993 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:53:56,993 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-11-21 01:53:56,993 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2021-11-21 01:53:56,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:53:56,994 INFO L85 PathProgramCache]: Analyzing trace with hash -733564294, now seen corresponding path program 1 times [2021-11-21 01:53:56,994 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:53:56,994 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1274118587] [2021-11-21 01:53:56,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:53:56,995 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:53:57,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:53:57,503 INFO L134 CoverageAnalysis]: Checked inductivity of 379 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 379 trivial. 0 not checked. [2021-11-21 01:53:57,503 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:53:57,504 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1274118587] [2021-11-21 01:53:57,504 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1274118587] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:53:57,504 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:53:57,504 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-21 01:53:57,504 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [406179631] [2021-11-21 01:53:57,505 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:53:57,505 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-21 01:53:57,505 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:53:57,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-21 01:53:57,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-21 01:53:57,506 INFO L87 Difference]: Start difference. First operand 1751 states and 2353 transitions. Second operand has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2021-11-21 01:54:00,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:54:00,725 INFO L93 Difference]: Finished difference Result 2070 states and 2734 transitions. [2021-11-21 01:54:00,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-21 01:54:00,726 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 170 [2021-11-21 01:54:00,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:54:00,732 INFO L225 Difference]: With dead ends: 2070 [2021-11-21 01:54:00,732 INFO L226 Difference]: Without dead ends: 2068 [2021-11-21 01:54:00,733 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-21 01:54:00,734 INFO L933 BasicCegarLoop]: 1975 mSDtfsCounter, 1536 mSDsluCounter, 5339 mSDsCounter, 0 mSdLazyCounter, 1003 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1537 SdHoareTripleChecker+Valid, 6612 SdHoareTripleChecker+Invalid, 1004 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1003 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2021-11-21 01:54:00,734 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1537 Valid, 6612 Invalid, 1004 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1003 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2021-11-21 01:54:00,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2068 states. [2021-11-21 01:54:00,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2068 to 2060. [2021-11-21 01:54:00,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2060 states, 1130 states have (on average 1.1761061946902656) internal successors, (1329), 1162 states have internal predecessors, (1329), 700 states have call successors, (700), 220 states have call predecessors, (700), 219 states have return successors, (698), 695 states have call predecessors, (698), 698 states have call successors, (698) [2021-11-21 01:54:00,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2060 states to 2060 states and 2727 transitions. [2021-11-21 01:54:00,907 INFO L78 Accepts]: Start accepts. Automaton has 2060 states and 2727 transitions. Word has length 170 [2021-11-21 01:54:00,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:54:00,907 INFO L470 AbstractCegarLoop]: Abstraction has 2060 states and 2727 transitions. [2021-11-21 01:54:00,908 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2021-11-21 01:54:00,908 INFO L276 IsEmpty]: Start isEmpty. Operand 2060 states and 2727 transitions. [2021-11-21 01:54:00,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2021-11-21 01:54:00,910 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:54:00,911 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:54:00,911 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-11-21 01:54:00,911 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2021-11-21 01:54:00,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:54:00,912 INFO L85 PathProgramCache]: Analyzing trace with hash -1783496943, now seen corresponding path program 1 times [2021-11-21 01:54:00,912 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:54:00,912 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1015589232] [2021-11-21 01:54:00,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:54:00,913 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:54:01,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:54:01,327 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-21 01:54:01,327 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:54:01,328 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1015589232] [2021-11-21 01:54:01,328 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1015589232] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:54:01,328 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:54:01,328 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-21 01:54:01,328 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1789598468] [2021-11-21 01:54:01,329 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:54:01,329 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 01:54:01,329 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:54:01,330 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 01:54:01,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 01:54:01,330 INFO L87 Difference]: Start difference. First operand 2060 states and 2727 transitions. Second operand has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2021-11-21 01:54:04,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:54:04,217 INFO L93 Difference]: Finished difference Result 2936 states and 3861 transitions. [2021-11-21 01:54:04,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-21 01:54:04,218 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 138 [2021-11-21 01:54:04,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:54:04,228 INFO L225 Difference]: With dead ends: 2936 [2021-11-21 01:54:04,229 INFO L226 Difference]: Without dead ends: 2934 [2021-11-21 01:54:04,230 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-21 01:54:04,231 INFO L933 BasicCegarLoop]: 2207 mSDtfsCounter, 1895 mSDsluCounter, 3589 mSDsCounter, 0 mSdLazyCounter, 740 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1897 SdHoareTripleChecker+Valid, 5364 SdHoareTripleChecker+Invalid, 741 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 740 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2021-11-21 01:54:04,232 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1897 Valid, 5364 Invalid, 741 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 740 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2021-11-21 01:54:04,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2934 states. [2021-11-21 01:54:04,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2934 to 2901. [2021-11-21 01:54:04,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2901 states, 1606 states have (on average 1.178082191780822) internal successors, (1892), 1646 states have internal predecessors, (1892), 968 states have call successors, (968), 318 states have call predecessors, (968), 316 states have return successors, (973), 959 states have call predecessors, (973), 966 states have call successors, (973) [2021-11-21 01:54:04,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2901 states to 2901 states and 3833 transitions. [2021-11-21 01:54:04,654 INFO L78 Accepts]: Start accepts. Automaton has 2901 states and 3833 transitions. Word has length 138 [2021-11-21 01:54:04,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:54:04,655 INFO L470 AbstractCegarLoop]: Abstraction has 2901 states and 3833 transitions. [2021-11-21 01:54:04,655 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2021-11-21 01:54:04,656 INFO L276 IsEmpty]: Start isEmpty. Operand 2901 states and 3833 transitions. [2021-11-21 01:54:04,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2021-11-21 01:54:04,659 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:54:04,660 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 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] [2021-11-21 01:54:04,660 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-11-21 01:54:04,661 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ldv_assert_linux_net_rtnetlink__double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2021-11-21 01:54:04,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:54:04,662 INFO L85 PathProgramCache]: Analyzing trace with hash 1610553044, now seen corresponding path program 1 times [2021-11-21 01:54:04,662 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:54:04,662 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [447728589] [2021-11-21 01:54:04,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:54:04,662 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:54:04,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:54:05,158 INFO L134 CoverageAnalysis]: Checked inductivity of 379 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 379 trivial. 0 not checked. [2021-11-21 01:54:05,158 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:54:05,158 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [447728589] [2021-11-21 01:54:05,159 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [447728589] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:54:05,159 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:54:05,159 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-21 01:54:05,159 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1464426630] [2021-11-21 01:54:05,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:54:05,161 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-21 01:54:05,161 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:54:05,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-21 01:54:05,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-21 01:54:05,162 INFO L87 Difference]: Start difference. First operand 2901 states and 3833 transitions. Second operand has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2021-11-21 01:54:08,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:54:08,426 INFO L93 Difference]: Finished difference Result 2909 states and 3837 transitions. [2021-11-21 01:54:08,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-21 01:54:08,432 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 173 [2021-11-21 01:54:08,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:54:08,444 INFO L225 Difference]: With dead ends: 2909 [2021-11-21 01:54:08,445 INFO L226 Difference]: Without dead ends: 2907 [2021-11-21 01:54:08,446 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-21 01:54:08,447 INFO L933 BasicCegarLoop]: 1799 mSDtfsCounter, 1858 mSDsluCounter, 4526 mSDsCounter, 0 mSdLazyCounter, 842 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1859 SdHoareTripleChecker+Valid, 5749 SdHoareTripleChecker+Invalid, 843 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 842 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2021-11-21 01:54:08,447 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1859 Valid, 5749 Invalid, 843 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 842 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2021-11-21 01:54:08,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2907 states. [2021-11-21 01:54:08,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2907 to 2899. [2021-11-21 01:54:08,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2899 states, 1605 states have (on average 1.1769470404984423) internal successors, (1889), 1644 states have internal predecessors, (1889), 968 states have call successors, (968), 318 states have call predecessors, (968), 316 states have return successors, (973), 959 states have call predecessors, (973), 966 states have call successors, (973) [2021-11-21 01:54:08,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2899 states to 2899 states and 3830 transitions. [2021-11-21 01:54:08,745 INFO L78 Accepts]: Start accepts. Automaton has 2899 states and 3830 transitions. Word has length 173 [2021-11-21 01:54:08,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:54:08,746 INFO L470 AbstractCegarLoop]: Abstraction has 2899 states and 3830 transitions. [2021-11-21 01:54:08,746 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2021-11-21 01:54:08,746 INFO L276 IsEmpty]: Start isEmpty. Operand 2899 states and 3830 transitions. [2021-11-21 01:54:08,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2021-11-21 01:54:08,750 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:54:08,750 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:54:08,750 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-11-21 01:54:08,750 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2021-11-21 01:54:08,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:54:08,751 INFO L85 PathProgramCache]: Analyzing trace with hash -20958605, now seen corresponding path program 1 times [2021-11-21 01:54:08,751 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:54:08,752 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [862975453] [2021-11-21 01:54:08,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:54:08,752 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:54:08,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:54:09,150 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-21 01:54:09,151 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:54:09,151 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [862975453] [2021-11-21 01:54:09,151 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [862975453] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:54:09,151 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:54:09,152 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-21 01:54:09,152 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [967359295] [2021-11-21 01:54:09,152 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:54:09,153 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 01:54:09,153 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:54:09,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 01:54:09,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 01:54:09,154 INFO L87 Difference]: Start difference. First operand 2899 states and 3830 transitions. Second operand has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2021-11-21 01:54:11,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:54:11,646 INFO L93 Difference]: Finished difference Result 2899 states and 3830 transitions. [2021-11-21 01:54:11,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-21 01:54:11,647 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 143 [2021-11-21 01:54:11,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:54:11,658 INFO L225 Difference]: With dead ends: 2899 [2021-11-21 01:54:11,659 INFO L226 Difference]: Without dead ends: 2897 [2021-11-21 01:54:11,660 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-21 01:54:11,661 INFO L933 BasicCegarLoop]: 1709 mSDtfsCounter, 1927 mSDsluCounter, 1964 mSDsCounter, 0 mSdLazyCounter, 513 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1929 SdHoareTripleChecker+Valid, 3418 SdHoareTripleChecker+Invalid, 513 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 513 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2021-11-21 01:54:11,662 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1929 Valid, 3418 Invalid, 513 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 513 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2021-11-21 01:54:11,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2897 states. [2021-11-21 01:54:12,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2897 to 2897. [2021-11-21 01:54:12,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2897 states, 1604 states have (on average 1.17643391521197) internal successors, (1887), 1642 states have internal predecessors, (1887), 968 states have call successors, (968), 318 states have call predecessors, (968), 316 states have return successors, (973), 959 states have call predecessors, (973), 966 states have call successors, (973) [2021-11-21 01:54:12,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2897 states to 2897 states and 3828 transitions. [2021-11-21 01:54:12,143 INFO L78 Accepts]: Start accepts. Automaton has 2897 states and 3828 transitions. Word has length 143 [2021-11-21 01:54:12,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:54:12,144 INFO L470 AbstractCegarLoop]: Abstraction has 2897 states and 3828 transitions. [2021-11-21 01:54:12,144 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2021-11-21 01:54:12,145 INFO L276 IsEmpty]: Start isEmpty. Operand 2897 states and 3828 transitions. [2021-11-21 01:54:12,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2021-11-21 01:54:12,148 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:54:12,148 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 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] [2021-11-21 01:54:12,149 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-11-21 01:54:12,149 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ldv_linux_net_rtnetlink_past_rtnl_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2021-11-21 01:54:12,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:54:12,150 INFO L85 PathProgramCache]: Analyzing trace with hash -516851936, now seen corresponding path program 1 times [2021-11-21 01:54:12,150 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:54:12,151 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1527386611] [2021-11-21 01:54:12,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:54:12,152 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:54:12,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:54:12,597 INFO L134 CoverageAnalysis]: Checked inductivity of 379 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 379 trivial. 0 not checked. [2021-11-21 01:54:12,597 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:54:12,598 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1527386611] [2021-11-21 01:54:12,598 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1527386611] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:54:12,598 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:54:12,598 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-21 01:54:12,598 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1228473591] [2021-11-21 01:54:12,599 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:54:12,599 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 01:54:12,600 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:54:12,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 01:54:12,600 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 01:54:12,601 INFO L87 Difference]: Start difference. First operand 2897 states and 3828 transitions. Second operand has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (26), 2 states have call predecessors, (26), 1 states have call successors, (26) [2021-11-21 01:54:15,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:54:15,617 INFO L93 Difference]: Finished difference Result 2905 states and 3832 transitions. [2021-11-21 01:54:15,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-21 01:54:15,618 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (26), 2 states have call predecessors, (26), 1 states have call successors, (26) Word has length 180 [2021-11-21 01:54:15,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:54:15,632 INFO L225 Difference]: With dead ends: 2905 [2021-11-21 01:54:15,632 INFO L226 Difference]: Without dead ends: 2903 [2021-11-21 01:54:15,634 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-21 01:54:15,636 INFO L933 BasicCegarLoop]: 2012 mSDtfsCounter, 418 mSDsluCounter, 4231 mSDsCounter, 0 mSdLazyCounter, 879 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 418 SdHoareTripleChecker+Valid, 5683 SdHoareTripleChecker+Invalid, 879 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 879 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2021-11-21 01:54:15,636 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [418 Valid, 5683 Invalid, 879 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 879 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2021-11-21 01:54:15,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2903 states. [2021-11-21 01:54:15,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2903 to 2895. [2021-11-21 01:54:16,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2895 states, 1603 states have (on average 1.175296319401123) internal successors, (1884), 1640 states have internal predecessors, (1884), 968 states have call successors, (968), 318 states have call predecessors, (968), 316 states have return successors, (973), 959 states have call predecessors, (973), 966 states have call successors, (973) [2021-11-21 01:54:16,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2895 states to 2895 states and 3825 transitions. [2021-11-21 01:54:16,016 INFO L78 Accepts]: Start accepts. Automaton has 2895 states and 3825 transitions. Word has length 180 [2021-11-21 01:54:16,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:54:16,016 INFO L470 AbstractCegarLoop]: Abstraction has 2895 states and 3825 transitions. [2021-11-21 01:54:16,017 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (26), 2 states have call predecessors, (26), 1 states have call successors, (26) [2021-11-21 01:54:16,017 INFO L276 IsEmpty]: Start isEmpty. Operand 2895 states and 3825 transitions. [2021-11-21 01:54:16,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2021-11-21 01:54:16,020 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:54:16,020 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:54:16,020 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-11-21 01:54:16,020 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ldv_linux_usb_urb_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2021-11-21 01:54:16,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:54:16,021 INFO L85 PathProgramCache]: Analyzing trace with hash 1311367379, now seen corresponding path program 1 times [2021-11-21 01:54:16,021 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:54:16,021 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [890897049] [2021-11-21 01:54:16,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:54:16,022 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:54:16,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:54:16,339 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-21 01:54:16,340 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:54:16,340 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [890897049] [2021-11-21 01:54:16,340 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [890897049] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:54:16,340 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:54:16,340 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-21 01:54:16,341 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1689939113] [2021-11-21 01:54:16,341 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:54:16,341 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 01:54:16,342 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:54:16,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 01:54:16,342 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 01:54:16,342 INFO L87 Difference]: Start difference. First operand 2895 states and 3825 transitions. Second operand has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2021-11-21 01:54:19,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:54:19,431 INFO L93 Difference]: Finished difference Result 4522 states and 5882 transitions. [2021-11-21 01:54:19,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-21 01:54:19,432 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) Word has length 148 [2021-11-21 01:54:19,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:54:19,454 INFO L225 Difference]: With dead ends: 4522 [2021-11-21 01:54:19,454 INFO L226 Difference]: Without dead ends: 4364 [2021-11-21 01:54:19,459 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-21 01:54:19,460 INFO L933 BasicCegarLoop]: 2093 mSDtfsCounter, 1358 mSDsluCounter, 4183 mSDsCounter, 0 mSdLazyCounter, 808 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1358 SdHoareTripleChecker+Valid, 5757 SdHoareTripleChecker+Invalid, 808 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 808 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2021-11-21 01:54:19,461 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1358 Valid, 5757 Invalid, 808 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 808 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2021-11-21 01:54:19,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4364 states. [2021-11-21 01:54:19,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4364 to 4344. [2021-11-21 01:54:19,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4344 states, 2390 states have (on average 1.1644351464435145) internal successors, (2783), 2438 states have internal predecessors, (2783), 1431 states have call successors, (1431), 520 states have call predecessors, (1431), 515 states have return successors, (1457), 1415 states have call predecessors, (1457), 1427 states have call successors, (1457) [2021-11-21 01:54:19,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4344 states to 4344 states and 5671 transitions. [2021-11-21 01:54:19,979 INFO L78 Accepts]: Start accepts. Automaton has 4344 states and 5671 transitions. Word has length 148 [2021-11-21 01:54:19,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:54:19,980 INFO L470 AbstractCegarLoop]: Abstraction has 4344 states and 5671 transitions. [2021-11-21 01:54:19,980 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2021-11-21 01:54:19,980 INFO L276 IsEmpty]: Start isEmpty. Operand 4344 states and 5671 transitions. [2021-11-21 01:54:19,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2021-11-21 01:54:19,983 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:54:19,983 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 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] [2021-11-21 01:54:19,983 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2021-11-21 01:54:19,983 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ldv_linux_usb_coherent_usb_free_coherentErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2021-11-21 01:54:19,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:54:19,984 INFO L85 PathProgramCache]: Analyzing trace with hash 466073190, now seen corresponding path program 1 times [2021-11-21 01:54:19,984 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:54:19,984 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [83936972] [2021-11-21 01:54:19,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:54:19,985 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:54:21,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:54:22,330 INFO L134 CoverageAnalysis]: Checked inductivity of 379 backedges. 4 proven. 46 refuted. 0 times theorem prover too weak. 329 trivial. 0 not checked. [2021-11-21 01:54:22,330 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:54:22,330 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [83936972] [2021-11-21 01:54:22,330 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [83936972] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-21 01:54:22,330 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1140282496] [2021-11-21 01:54:22,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:54:22,331 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:54:22,331 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_034ee5f8-7088-48e8-b22a-3b7cbc669243/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 01:54:22,332 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_034ee5f8-7088-48e8-b22a-3b7cbc669243/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 01:54:22,357 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_034ee5f8-7088-48e8-b22a-3b7cbc669243/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-21 01:54:23,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:54:23,733 INFO L263 TraceCheckSpWp]: Trace formula consists of 6269 conjuncts, 24 conjunts are in the unsatisfiable core [2021-11-21 01:54:23,749 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 01:54:24,362 INFO L134 CoverageAnalysis]: Checked inductivity of 379 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 347 trivial. 0 not checked. [2021-11-21 01:54:24,362 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-21 01:54:24,362 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1140282496] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:54:24,363 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-21 01:54:24,363 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [9] total 17 [2021-11-21 01:54:24,363 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1851439012] [2021-11-21 01:54:24,363 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:54:24,364 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-21 01:54:24,365 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:54:24,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-21 01:54:24,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=240, Unknown=0, NotChecked=0, Total=272 [2021-11-21 01:54:24,366 INFO L87 Difference]: Start difference. First operand 4344 states and 5671 transitions. Second operand has 12 states, 9 states have (on average 7.444444444444445) internal successors, (67), 11 states have internal predecessors, (67), 6 states have call successors, (32), 2 states have call predecessors, (32), 4 states have return successors, (29), 6 states have call predecessors, (29), 6 states have call successors, (29) [2021-11-21 01:54:33,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:54:33,398 INFO L93 Difference]: Finished difference Result 5489 states and 7025 transitions. [2021-11-21 01:54:33,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-21 01:54:33,399 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 9 states have (on average 7.444444444444445) internal successors, (67), 11 states have internal predecessors, (67), 6 states have call successors, (32), 2 states have call predecessors, (32), 4 states have return successors, (29), 6 states have call predecessors, (29), 6 states have call successors, (29) Word has length 196 [2021-11-21 01:54:33,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:54:33,418 INFO L225 Difference]: With dead ends: 5489 [2021-11-21 01:54:33,419 INFO L226 Difference]: Without dead ends: 4344 [2021-11-21 01:54:33,426 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 210 GetRequests, 189 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=71, Invalid=435, Unknown=0, NotChecked=0, Total=506 [2021-11-21 01:54:33,432 INFO L933 BasicCegarLoop]: 1677 mSDtfsCounter, 26 mSDsluCounter, 19214 mSDsCounter, 0 mSdLazyCounter, 3225 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 18369 SdHoareTripleChecker+Invalid, 3249 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 3225 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.4s IncrementalHoareTripleChecker+Time [2021-11-21 01:54:33,432 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [26 Valid, 18369 Invalid, 3249 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 3225 Invalid, 0 Unknown, 0 Unchecked, 8.4s Time] [2021-11-21 01:54:33,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4344 states. [2021-11-21 01:54:33,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4344 to 4344. [2021-11-21 01:54:33,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4344 states, 2390 states have (on average 1.1640167364016736) internal successors, (2782), 2438 states have internal predecessors, (2782), 1431 states have call successors, (1431), 520 states have call predecessors, (1431), 515 states have return successors, (1457), 1415 states have call predecessors, (1457), 1427 states have call successors, (1457) [2021-11-21 01:54:34,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4344 states to 4344 states and 5670 transitions. [2021-11-21 01:54:34,017 INFO L78 Accepts]: Start accepts. Automaton has 4344 states and 5670 transitions. Word has length 196 [2021-11-21 01:54:34,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:54:34,018 INFO L470 AbstractCegarLoop]: Abstraction has 4344 states and 5670 transitions. [2021-11-21 01:54:34,018 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 9 states have (on average 7.444444444444445) internal successors, (67), 11 states have internal predecessors, (67), 6 states have call successors, (32), 2 states have call predecessors, (32), 4 states have return successors, (29), 6 states have call predecessors, (29), 6 states have call successors, (29) [2021-11-21 01:54:34,018 INFO L276 IsEmpty]: Start isEmpty. Operand 4344 states and 5670 transitions. [2021-11-21 01:54:34,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2021-11-21 01:54:34,021 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:54:34,021 INFO L514 BasicCegarLoop]: trace histogram [15, 15, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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] [2021-11-21 01:54:34,069 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_034ee5f8-7088-48e8-b22a-3b7cbc669243/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-21 01:54:34,237 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_034ee5f8-7088-48e8-b22a-3b7cbc669243/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2021-11-21 01:54:34,237 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ldv_linux_usb_coherent_usb_free_coherentErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2021-11-21 01:54:34,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:54:34,238 INFO L85 PathProgramCache]: Analyzing trace with hash -863316226, now seen corresponding path program 1 times [2021-11-21 01:54:34,238 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:54:34,238 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1163225317] [2021-11-21 01:54:34,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:54:34,238 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:54:35,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:54:35,811 INFO L134 CoverageAnalysis]: Checked inductivity of 439 backedges. 4 proven. 48 refuted. 0 times theorem prover too weak. 387 trivial. 0 not checked. [2021-11-21 01:54:35,811 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:54:35,811 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1163225317] [2021-11-21 01:54:35,811 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1163225317] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-21 01:54:35,811 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [714888843] [2021-11-21 01:54:35,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:54:35,812 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:54:35,812 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_034ee5f8-7088-48e8-b22a-3b7cbc669243/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 01:54:35,813 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_034ee5f8-7088-48e8-b22a-3b7cbc669243/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 01:54:35,837 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_034ee5f8-7088-48e8-b22a-3b7cbc669243/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-21 01:54:37,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:54:37,150 INFO L263 TraceCheckSpWp]: Trace formula consists of 6369 conjuncts, 23 conjunts are in the unsatisfiable core [2021-11-21 01:54:37,161 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 01:54:37,806 INFO L134 CoverageAnalysis]: Checked inductivity of 439 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 401 trivial. 0 not checked. [2021-11-21 01:54:37,807 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-21 01:54:37,807 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [714888843] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:54:37,807 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-21 01:54:37,807 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [9] total 17 [2021-11-21 01:54:37,808 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [835689597] [2021-11-21 01:54:37,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:54:37,808 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-21 01:54:37,808 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:54:37,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-21 01:54:37,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=240, Unknown=0, NotChecked=0, Total=272 [2021-11-21 01:54:37,810 INFO L87 Difference]: Start difference. First operand 4344 states and 5670 transitions. Second operand has 12 states, 9 states have (on average 8.444444444444445) internal successors, (76), 11 states have internal predecessors, (76), 7 states have call successors, (36), 2 states have call predecessors, (36), 4 states have return successors, (33), 7 states have call predecessors, (33), 7 states have call successors, (33) [2021-11-21 01:54:47,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:54:47,142 INFO L93 Difference]: Finished difference Result 6053 states and 7886 transitions. [2021-11-21 01:54:47,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-21 01:54:47,142 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 9 states have (on average 8.444444444444445) internal successors, (76), 11 states have internal predecessors, (76), 7 states have call successors, (36), 2 states have call predecessors, (36), 4 states have return successors, (33), 7 states have call predecessors, (33), 7 states have call successors, (33) Word has length 217 [2021-11-21 01:54:47,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:54:47,169 INFO L225 Difference]: With dead ends: 6053 [2021-11-21 01:54:47,170 INFO L226 Difference]: Without dead ends: 4614 [2021-11-21 01:54:47,179 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 231 GetRequests, 210 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=71, Invalid=435, Unknown=0, NotChecked=0, Total=506 [2021-11-21 01:54:47,180 INFO L933 BasicCegarLoop]: 1840 mSDtfsCounter, 305 mSDsluCounter, 20180 mSDsCounter, 0 mSdLazyCounter, 3354 mSolverCounterSat, 259 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 499 SdHoareTripleChecker+Valid, 19505 SdHoareTripleChecker+Invalid, 3613 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 259 IncrementalHoareTripleChecker+Valid, 3354 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.7s IncrementalHoareTripleChecker+Time [2021-11-21 01:54:47,181 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [499 Valid, 19505 Invalid, 3613 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [259 Valid, 3354 Invalid, 0 Unknown, 0 Unchecked, 8.7s Time] [2021-11-21 01:54:47,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4614 states. [2021-11-21 01:54:47,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4614 to 4360. [2021-11-21 01:54:47,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4360 states, 2400 states have (on average 1.1625) internal successors, (2790), 2448 states have internal predecessors, (2790), 1437 states have call successors, (1437), 520 states have call predecessors, (1437), 515 states have return successors, (1463), 1421 states have call predecessors, (1463), 1433 states have call successors, (1463) [2021-11-21 01:54:47,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4360 states to 4360 states and 5690 transitions. [2021-11-21 01:54:47,765 INFO L78 Accepts]: Start accepts. Automaton has 4360 states and 5690 transitions. Word has length 217 [2021-11-21 01:54:47,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:54:47,766 INFO L470 AbstractCegarLoop]: Abstraction has 4360 states and 5690 transitions. [2021-11-21 01:54:47,766 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 9 states have (on average 8.444444444444445) internal successors, (76), 11 states have internal predecessors, (76), 7 states have call successors, (36), 2 states have call predecessors, (36), 4 states have return successors, (33), 7 states have call predecessors, (33), 7 states have call successors, (33) [2021-11-21 01:54:47,767 INFO L276 IsEmpty]: Start isEmpty. Operand 4360 states and 5690 transitions. [2021-11-21 01:54:47,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2021-11-21 01:54:47,769 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:54:47,770 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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] [2021-11-21 01:54:47,817 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_034ee5f8-7088-48e8-b22a-3b7cbc669243/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-21 01:54:47,985 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_034ee5f8-7088-48e8-b22a-3b7cbc669243/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:54:47,985 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ldv_linux_usb_coherent_usb_free_coherentErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2021-11-21 01:54:47,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:54:47,986 INFO L85 PathProgramCache]: Analyzing trace with hash -560931258, now seen corresponding path program 1 times [2021-11-21 01:54:47,986 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:54:47,986 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [680438192] [2021-11-21 01:54:47,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:54:47,986 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:54:49,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:54:49,332 INFO L134 CoverageAnalysis]: Checked inductivity of 387 backedges. 4 proven. 46 refuted. 0 times theorem prover too weak. 337 trivial. 0 not checked. [2021-11-21 01:54:49,332 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:54:49,332 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [680438192] [2021-11-21 01:54:49,332 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [680438192] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-21 01:54:49,332 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1732000932] [2021-11-21 01:54:49,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:54:49,333 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:54:49,333 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_034ee5f8-7088-48e8-b22a-3b7cbc669243/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 01:54:49,334 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_034ee5f8-7088-48e8-b22a-3b7cbc669243/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 01:54:49,349 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_034ee5f8-7088-48e8-b22a-3b7cbc669243/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-21 01:54:50,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:54:50,472 INFO L263 TraceCheckSpWp]: Trace formula consists of 6397 conjuncts, 25 conjunts are in the unsatisfiable core [2021-11-21 01:54:50,481 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 01:54:51,239 INFO L134 CoverageAnalysis]: Checked inductivity of 387 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 353 trivial. 0 not checked. [2021-11-21 01:54:51,240 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-21 01:54:51,240 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1732000932] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:54:51,240 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-21 01:54:51,240 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [9] total 18 [2021-11-21 01:54:51,241 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [618825631] [2021-11-21 01:54:51,241 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:54:51,241 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-21 01:54:51,242 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:54:51,242 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-21 01:54:51,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2021-11-21 01:54:51,242 INFO L87 Difference]: Start difference. First operand 4360 states and 5690 transitions. Second operand has 13 states, 10 states have (on average 8.8) internal successors, (88), 12 states have internal predecessors, (88), 7 states have call successors, (40), 2 states have call predecessors, (40), 4 states have return successors, (37), 7 states have call predecessors, (37), 7 states have call successors, (37) [2021-11-21 01:55:00,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:55:00,350 INFO L93 Difference]: Finished difference Result 5518 states and 7065 transitions. [2021-11-21 01:55:00,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-21 01:55:00,351 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 10 states have (on average 8.8) internal successors, (88), 12 states have internal predecessors, (88), 7 states have call successors, (40), 2 states have call predecessors, (40), 4 states have return successors, (37), 7 states have call predecessors, (37), 7 states have call successors, (37) Word has length 234 [2021-11-21 01:55:00,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:55:00,370 INFO L225 Difference]: With dead ends: 5518 [2021-11-21 01:55:00,370 INFO L226 Difference]: Without dead ends: 4369 [2021-11-21 01:55:00,377 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 249 GetRequests, 226 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=85, Invalid=515, Unknown=0, NotChecked=0, Total=600 [2021-11-21 01:55:00,378 INFO L933 BasicCegarLoop]: 1683 mSDtfsCounter, 48 mSDsluCounter, 21166 mSDsCounter, 0 mSdLazyCounter, 3518 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 20084 SdHoareTripleChecker+Invalid, 3550 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 3518 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.6s IncrementalHoareTripleChecker+Time [2021-11-21 01:55:00,378 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [59 Valid, 20084 Invalid, 3550 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 3518 Invalid, 0 Unknown, 0 Unchecked, 8.6s Time] [2021-11-21 01:55:00,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4369 states. [2021-11-21 01:55:00,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4369 to 4360. [2021-11-21 01:55:00,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4360 states, 2400 states have (on average 1.1608333333333334) internal successors, (2786), 2445 states have internal predecessors, (2786), 1437 states have call successors, (1437), 520 states have call predecessors, (1437), 515 states have return successors, (1463), 1421 states have call predecessors, (1463), 1433 states have call successors, (1463) [2021-11-21 01:55:00,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4360 states to 4360 states and 5686 transitions. [2021-11-21 01:55:00,976 INFO L78 Accepts]: Start accepts. Automaton has 4360 states and 5686 transitions. Word has length 234 [2021-11-21 01:55:00,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:55:00,977 INFO L470 AbstractCegarLoop]: Abstraction has 4360 states and 5686 transitions. [2021-11-21 01:55:00,977 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 10 states have (on average 8.8) internal successors, (88), 12 states have internal predecessors, (88), 7 states have call successors, (40), 2 states have call predecessors, (40), 4 states have return successors, (37), 7 states have call predecessors, (37), 7 states have call successors, (37) [2021-11-21 01:55:00,977 INFO L276 IsEmpty]: Start isEmpty. Operand 4360 states and 5686 transitions. [2021-11-21 01:55:00,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 285 [2021-11-21 01:55:00,981 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:55:00,981 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 8, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:55:01,030 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_034ee5f8-7088-48e8-b22a-3b7cbc669243/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-21 01:55:01,197 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_034ee5f8-7088-48e8-b22a-3b7cbc669243/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:55:01,197 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2021-11-21 01:55:01,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:55:01,198 INFO L85 PathProgramCache]: Analyzing trace with hash 2130774007, now seen corresponding path program 1 times [2021-11-21 01:55:01,198 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:55:01,198 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1683824187] [2021-11-21 01:55:01,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:55:01,198 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:55:01,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:55:01,771 INFO L134 CoverageAnalysis]: Checked inductivity of 495 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 495 trivial. 0 not checked. [2021-11-21 01:55:01,771 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:55:01,771 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1683824187] [2021-11-21 01:55:01,771 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1683824187] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:55:01,772 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:55:01,772 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-21 01:55:01,772 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1779575421] [2021-11-21 01:55:01,772 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:55:01,773 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-21 01:55:01,773 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:55:01,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-21 01:55:01,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-21 01:55:01,774 INFO L87 Difference]: Start difference. First operand 4360 states and 5686 transitions. Second operand has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (56), 3 states have call predecessors, (56), 1 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) [2021-11-21 01:55:04,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:55:04,585 INFO L93 Difference]: Finished difference Result 4410 states and 5722 transitions. [2021-11-21 01:55:04,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-21 01:55:04,586 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (56), 3 states have call predecessors, (56), 1 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) Word has length 284 [2021-11-21 01:55:04,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:55:04,607 INFO L225 Difference]: With dead ends: 4410 [2021-11-21 01:55:04,607 INFO L226 Difference]: Without dead ends: 4408 [2021-11-21 01:55:04,610 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-21 01:55:04,611 INFO L933 BasicCegarLoop]: 1702 mSDtfsCounter, 1853 mSDsluCounter, 3939 mSDsCounter, 0 mSdLazyCounter, 788 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1855 SdHoareTripleChecker+Valid, 5121 SdHoareTripleChecker+Invalid, 790 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 788 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2021-11-21 01:55:04,611 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1855 Valid, 5121 Invalid, 790 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 788 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2021-11-21 01:55:04,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4408 states. [2021-11-21 01:55:05,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4408 to 4406. [2021-11-21 01:55:05,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4406 states, 2430 states have (on average 1.1580246913580248) internal successors, (2814), 2475 states have internal predecessors, (2814), 1437 states have call successors, (1437), 536 states have call predecessors, (1437), 531 states have return successors, (1463), 1421 states have call predecessors, (1463), 1433 states have call successors, (1463) [2021-11-21 01:55:05,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4406 states to 4406 states and 5714 transitions. [2021-11-21 01:55:05,374 INFO L78 Accepts]: Start accepts. Automaton has 4406 states and 5714 transitions. Word has length 284 [2021-11-21 01:55:05,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:55:05,375 INFO L470 AbstractCegarLoop]: Abstraction has 4406 states and 5714 transitions. [2021-11-21 01:55:05,375 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (56), 3 states have call predecessors, (56), 1 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) [2021-11-21 01:55:05,375 INFO L276 IsEmpty]: Start isEmpty. Operand 4406 states and 5714 transitions. [2021-11-21 01:55:05,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 345 [2021-11-21 01:55:05,381 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:55:05,382 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 7, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2021-11-21 01:55:05,382 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2021-11-21 01:55:05,382 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ldv_linux_usb_coherent_usb_free_coherentErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2021-11-21 01:55:05,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:55:05,383 INFO L85 PathProgramCache]: Analyzing trace with hash 1613955707, now seen corresponding path program 1 times [2021-11-21 01:55:05,383 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:55:05,384 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [107380381] [2021-11-21 01:55:05,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:55:05,384 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:55:05,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:55:06,021 INFO L134 CoverageAnalysis]: Checked inductivity of 517 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 505 trivial. 0 not checked. [2021-11-21 01:55:06,022 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:55:06,022 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [107380381] [2021-11-21 01:55:06,022 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [107380381] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-21 01:55:06,022 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1771297445] [2021-11-21 01:55:06,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:55:06,023 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:55:06,023 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_034ee5f8-7088-48e8-b22a-3b7cbc669243/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 01:55:06,024 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_034ee5f8-7088-48e8-b22a-3b7cbc669243/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 01:55:06,045 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_034ee5f8-7088-48e8-b22a-3b7cbc669243/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-21 01:55:07,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:55:07,352 INFO L263 TraceCheckSpWp]: Trace formula consists of 6824 conjuncts, 50 conjunts are in the unsatisfiable core [2021-11-21 01:55:07,367 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 01:55:08,102 INFO L134 CoverageAnalysis]: Checked inductivity of 517 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 479 trivial. 0 not checked. [2021-11-21 01:55:08,102 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-21 01:55:08,102 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1771297445] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:55:08,102 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-21 01:55:08,102 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [8] total 19 [2021-11-21 01:55:08,103 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [726262167] [2021-11-21 01:55:08,103 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:55:08,103 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-21 01:55:08,103 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:55:08,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-21 01:55:08,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=307, Unknown=0, NotChecked=0, Total=342 [2021-11-21 01:55:08,104 INFO L87 Difference]: Start difference. First operand 4406 states and 5714 transitions. Second operand has 13 states, 10 states have (on average 10.6) internal successors, (106), 12 states have internal predecessors, (106), 7 states have call successors, (51), 2 states have call predecessors, (51), 4 states have return successors, (48), 7 states have call predecessors, (48), 7 states have call successors, (48) [2021-11-21 01:55:17,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:55:17,293 INFO L93 Difference]: Finished difference Result 5685 states and 7287 transitions. [2021-11-21 01:55:17,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-21 01:55:17,294 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 10 states have (on average 10.6) internal successors, (106), 12 states have internal predecessors, (106), 7 states have call successors, (51), 2 states have call predecessors, (51), 4 states have return successors, (48), 7 states have call predecessors, (48), 7 states have call successors, (48) Word has length 344 [2021-11-21 01:55:17,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:55:17,313 INFO L225 Difference]: With dead ends: 5685 [2021-11-21 01:55:17,313 INFO L226 Difference]: Without dead ends: 4432 [2021-11-21 01:55:17,319 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 359 GetRequests, 335 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=86, Invalid=564, Unknown=0, NotChecked=0, Total=650 [2021-11-21 01:55:17,320 INFO L933 BasicCegarLoop]: 1719 mSDtfsCounter, 57 mSDsluCounter, 21522 mSDsCounter, 0 mSdLazyCounter, 3543 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 20476 SdHoareTripleChecker+Invalid, 3577 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 3543 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.6s IncrementalHoareTripleChecker+Time [2021-11-21 01:55:17,320 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [112 Valid, 20476 Invalid, 3577 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 3543 Invalid, 0 Unknown, 0 Unchecked, 8.6s Time] [2021-11-21 01:55:17,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4432 states. [2021-11-21 01:55:17,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4432 to 4324. [2021-11-21 01:55:17,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4324 states, 2383 states have (on average 1.1582039446076375) internal successors, (2760), 2428 states have internal predecessors, (2760), 1414 states have call successors, (1414), 524 states have call predecessors, (1414), 519 states have return successors, (1440), 1398 states have call predecessors, (1440), 1410 states have call successors, (1440) [2021-11-21 01:55:17,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4324 states to 4324 states and 5614 transitions. [2021-11-21 01:55:17,835 INFO L78 Accepts]: Start accepts. Automaton has 4324 states and 5614 transitions. Word has length 344 [2021-11-21 01:55:17,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:55:17,836 INFO L470 AbstractCegarLoop]: Abstraction has 4324 states and 5614 transitions. [2021-11-21 01:55:17,836 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 10 states have (on average 10.6) internal successors, (106), 12 states have internal predecessors, (106), 7 states have call successors, (51), 2 states have call predecessors, (51), 4 states have return successors, (48), 7 states have call predecessors, (48), 7 states have call successors, (48) [2021-11-21 01:55:17,837 INFO L276 IsEmpty]: Start isEmpty. Operand 4324 states and 5614 transitions. [2021-11-21 01:55:17,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 325 [2021-11-21 01:55:17,840 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:55:17,840 INFO L514 BasicCegarLoop]: trace histogram [24, 24, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 5, 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] [2021-11-21 01:55:17,892 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_034ee5f8-7088-48e8-b22a-3b7cbc669243/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-11-21 01:55:18,065 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_034ee5f8-7088-48e8-b22a-3b7cbc669243/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable32 [2021-11-21 01:55:18,066 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ar5523_cmdErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2021-11-21 01:55:18,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:55:18,066 INFO L85 PathProgramCache]: Analyzing trace with hash -2012643458, now seen corresponding path program 1 times [2021-11-21 01:55:18,066 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:55:18,066 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [103288549] [2021-11-21 01:55:18,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:55:18,067 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:55:19,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:55:19,439 INFO L134 CoverageAnalysis]: Checked inductivity of 1347 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1347 trivial. 0 not checked. [2021-11-21 01:55:19,440 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:55:19,440 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [103288549] [2021-11-21 01:55:19,440 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [103288549] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:55:19,440 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:55:19,440 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-21 01:55:19,441 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1072400591] [2021-11-21 01:55:19,441 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:55:19,442 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 01:55:19,442 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:55:19,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 01:55:19,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 01:55:19,443 INFO L87 Difference]: Start difference. First operand 4324 states and 5614 transitions. Second operand has 4 states, 3 states have (on average 29.0) internal successors, (87), 4 states have internal predecessors, (87), 2 states have call successors, (44), 1 states have call predecessors, (44), 2 states have return successors, (41), 2 states have call predecessors, (41), 2 states have call successors, (41) [2021-11-21 01:55:22,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:55:22,193 INFO L93 Difference]: Finished difference Result 8614 states and 11459 transitions. [2021-11-21 01:55:22,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-21 01:55:22,195 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 29.0) internal successors, (87), 4 states have internal predecessors, (87), 2 states have call successors, (44), 1 states have call predecessors, (44), 2 states have return successors, (41), 2 states have call predecessors, (41), 2 states have call successors, (41) Word has length 324 [2021-11-21 01:55:22,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:55:22,228 INFO L225 Difference]: With dead ends: 8614 [2021-11-21 01:55:22,228 INFO L226 Difference]: Without dead ends: 4356 [2021-11-21 01:55:22,254 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-21 01:55:22,254 INFO L933 BasicCegarLoop]: 1629 mSDtfsCounter, 4 mSDsluCounter, 3746 mSDsCounter, 0 mSdLazyCounter, 770 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 4879 SdHoareTripleChecker+Invalid, 775 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 770 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2021-11-21 01:55:22,255 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 4879 Invalid, 775 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 770 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2021-11-21 01:55:22,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4356 states. [2021-11-21 01:55:22,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4356 to 4346. [2021-11-21 01:55:22,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4346 states, 2400 states have (on average 1.16125) internal successors, (2787), 2445 states have internal predecessors, (2787), 1414 states have call successors, (1414), 529 states have call predecessors, (1414), 524 states have return successors, (1440), 1398 states have call predecessors, (1440), 1410 states have call successors, (1440) [2021-11-21 01:55:22,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4346 states to 4346 states and 5641 transitions. [2021-11-21 01:55:22,761 INFO L78 Accepts]: Start accepts. Automaton has 4346 states and 5641 transitions. Word has length 324 [2021-11-21 01:55:22,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:55:22,761 INFO L470 AbstractCegarLoop]: Abstraction has 4346 states and 5641 transitions. [2021-11-21 01:55:22,762 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 29.0) internal successors, (87), 4 states have internal predecessors, (87), 2 states have call successors, (44), 1 states have call predecessors, (44), 2 states have return successors, (41), 2 states have call predecessors, (41), 2 states have call successors, (41) [2021-11-21 01:55:22,762 INFO L276 IsEmpty]: Start isEmpty. Operand 4346 states and 5641 transitions. [2021-11-21 01:55:22,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 326 [2021-11-21 01:55:22,766 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:55:22,766 INFO L514 BasicCegarLoop]: trace histogram [24, 24, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 5, 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] [2021-11-21 01:55:22,766 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2021-11-21 01:55:22,767 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ar5523_cmdErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2021-11-21 01:55:22,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:55:22,767 INFO L85 PathProgramCache]: Analyzing trace with hash -901562180, now seen corresponding path program 1 times [2021-11-21 01:55:22,768 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:55:22,768 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1584954277] [2021-11-21 01:55:22,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:55:22,768 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:55:23,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:55:23,802 INFO L134 CoverageAnalysis]: Checked inductivity of 1348 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1347 trivial. 0 not checked. [2021-11-21 01:55:23,803 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:55:23,803 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1584954277] [2021-11-21 01:55:23,803 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1584954277] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-21 01:55:23,803 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [518407765] [2021-11-21 01:55:23,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:55:23,804 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:55:23,804 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_034ee5f8-7088-48e8-b22a-3b7cbc669243/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 01:55:23,805 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_034ee5f8-7088-48e8-b22a-3b7cbc669243/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 01:55:23,825 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_034ee5f8-7088-48e8-b22a-3b7cbc669243/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-11-21 01:55:26,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:55:26,313 INFO L263 TraceCheckSpWp]: Trace formula consists of 6963 conjuncts, 16 conjunts are in the unsatisfiable core [2021-11-21 01:55:26,325 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 01:55:27,020 INFO L134 CoverageAnalysis]: Checked inductivity of 1348 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 1345 trivial. 0 not checked. [2021-11-21 01:55:27,020 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 01:55:28,034 INFO L134 CoverageAnalysis]: Checked inductivity of 1348 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1348 trivial. 0 not checked. [2021-11-21 01:55:28,034 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [518407765] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-21 01:55:28,034 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2021-11-21 01:55:28,034 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [5, 9] total 16 [2021-11-21 01:55:28,036 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1677358872] [2021-11-21 01:55:28,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:55:28,037 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-21 01:55:28,037 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:55:28,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-21 01:55:28,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2021-11-21 01:55:28,038 INFO L87 Difference]: Start difference. First operand 4346 states and 5641 transitions. Second operand has 8 states, 7 states have (on average 12.571428571428571) internal successors, (88), 6 states have internal predecessors, (88), 4 states have call successors, (44), 3 states have call predecessors, (44), 2 states have return successors, (41), 3 states have call predecessors, (41), 3 states have call successors, (41) [2021-11-21 01:55:34,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:55:34,938 INFO L93 Difference]: Finished difference Result 8807 states and 11760 transitions. [2021-11-21 01:55:34,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-21 01:55:34,938 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 12.571428571428571) internal successors, (88), 6 states have internal predecessors, (88), 4 states have call successors, (44), 3 states have call predecessors, (44), 2 states have return successors, (41), 3 states have call predecessors, (41), 3 states have call successors, (41) Word has length 325 [2021-11-21 01:55:34,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:55:34,968 INFO L225 Difference]: With dead ends: 8807 [2021-11-21 01:55:34,969 INFO L226 Difference]: Without dead ends: 4529 [2021-11-21 01:55:34,990 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 655 GetRequests, 639 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2021-11-21 01:55:34,991 INFO L933 BasicCegarLoop]: 1626 mSDtfsCounter, 43 mSDsluCounter, 9327 mSDsCounter, 0 mSdLazyCounter, 1612 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 9713 SdHoareTripleChecker+Invalid, 1646 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 1612 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2021-11-21 01:55:34,991 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [43 Valid, 9713 Invalid, 1646 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 1612 Invalid, 0 Unknown, 0 Unchecked, 6.1s Time] [2021-11-21 01:55:34,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4529 states. [2021-11-21 01:55:35,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4529 to 4527. [2021-11-21 01:55:35,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4527 states, 2509 states have (on average 1.1630131526504583) internal successors, (2918), 2561 states have internal predecessors, (2918), 1469 states have call successors, (1469), 539 states have call predecessors, (1469), 541 states have return successors, (1507), 1453 states have call predecessors, (1507), 1465 states have call successors, (1507) [2021-11-21 01:55:35,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4527 states to 4527 states and 5894 transitions. [2021-11-21 01:55:35,497 INFO L78 Accepts]: Start accepts. Automaton has 4527 states and 5894 transitions. Word has length 325 [2021-11-21 01:55:35,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:55:35,498 INFO L470 AbstractCegarLoop]: Abstraction has 4527 states and 5894 transitions. [2021-11-21 01:55:35,498 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 12.571428571428571) internal successors, (88), 6 states have internal predecessors, (88), 4 states have call successors, (44), 3 states have call predecessors, (44), 2 states have return successors, (41), 3 states have call predecessors, (41), 3 states have call successors, (41) [2021-11-21 01:55:35,498 INFO L276 IsEmpty]: Start isEmpty. Operand 4527 states and 5894 transitions. [2021-11-21 01:55:35,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 327 [2021-11-21 01:55:35,503 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:55:35,503 INFO L514 BasicCegarLoop]: trace histogram [24, 24, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 5, 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] [2021-11-21 01:55:35,561 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_034ee5f8-7088-48e8-b22a-3b7cbc669243/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-11-21 01:55:35,717 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_034ee5f8-7088-48e8-b22a-3b7cbc669243/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2021-11-21 01:55:35,717 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ar5523_cmdErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2021-11-21 01:55:35,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:55:35,718 INFO L85 PathProgramCache]: Analyzing trace with hash -1085776575, now seen corresponding path program 1 times [2021-11-21 01:55:35,718 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:55:35,718 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1339712988] [2021-11-21 01:55:35,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:55:35,719 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:55:36,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:55:36,682 INFO L134 CoverageAnalysis]: Checked inductivity of 1349 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1348 trivial. 0 not checked. [2021-11-21 01:55:36,683 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:55:36,683 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1339712988] [2021-11-21 01:55:36,683 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1339712988] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-21 01:55:36,683 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1676107716] [2021-11-21 01:55:36,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:55:36,684 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:55:36,684 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_034ee5f8-7088-48e8-b22a-3b7cbc669243/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 01:55:36,689 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_034ee5f8-7088-48e8-b22a-3b7cbc669243/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 01:55:36,690 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_034ee5f8-7088-48e8-b22a-3b7cbc669243/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-11-21 01:55:38,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:55:38,212 INFO L263 TraceCheckSpWp]: Trace formula consists of 7011 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-21 01:55:38,232 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 01:55:38,946 INFO L134 CoverageAnalysis]: Checked inductivity of 1349 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 1346 trivial. 0 not checked. [2021-11-21 01:55:38,947 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 01:55:39,687 INFO L134 CoverageAnalysis]: Checked inductivity of 1349 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1348 trivial. 0 not checked. [2021-11-21 01:55:39,687 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1676107716] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-21 01:55:39,688 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2021-11-21 01:55:39,688 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5, 5] total 9 [2021-11-21 01:55:39,688 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1385067689] [2021-11-21 01:55:39,688 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:55:39,689 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 01:55:39,689 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:55:39,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 01:55:39,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2021-11-21 01:55:39,690 INFO L87 Difference]: Start difference. First operand 4527 states and 5894 transitions. Second operand has 4 states, 4 states have (on average 22.25) internal successors, (89), 4 states have internal predecessors, (89), 2 states have call successors, (44), 1 states have call predecessors, (44), 2 states have return successors, (41), 2 states have call predecessors, (41), 2 states have call successors, (41) [2021-11-21 01:55:43,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:55:43,226 INFO L93 Difference]: Finished difference Result 9005 states and 12022 transitions. [2021-11-21 01:55:43,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-21 01:55:43,229 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.25) internal successors, (89), 4 states have internal predecessors, (89), 2 states have call successors, (44), 1 states have call predecessors, (44), 2 states have return successors, (41), 2 states have call predecessors, (41), 2 states have call successors, (41) Word has length 326 [2021-11-21 01:55:43,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:55:43,252 INFO L225 Difference]: With dead ends: 9005 [2021-11-21 01:55:43,252 INFO L226 Difference]: Without dead ends: 4542 [2021-11-21 01:55:43,274 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 655 GetRequests, 648 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2021-11-21 01:55:43,275 INFO L933 BasicCegarLoop]: 1628 mSDtfsCounter, 4 mSDsluCounter, 3735 mSDsCounter, 0 mSdLazyCounter, 783 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 4867 SdHoareTripleChecker+Invalid, 788 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 783 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2021-11-21 01:55:43,275 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 4867 Invalid, 788 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 783 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2021-11-21 01:55:43,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4542 states. [2021-11-21 01:55:43,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4542 to 4542. [2021-11-21 01:55:43,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4542 states, 2524 states have (on average 1.1620443740095088) internal successors, (2933), 2572 states have internal predecessors, (2933), 1469 states have call successors, (1469), 543 states have call predecessors, (1469), 541 states have return successors, (1507), 1453 states have call predecessors, (1507), 1465 states have call successors, (1507) [2021-11-21 01:55:43,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4542 states to 4542 states and 5909 transitions. [2021-11-21 01:55:43,774 INFO L78 Accepts]: Start accepts. Automaton has 4542 states and 5909 transitions. Word has length 326 [2021-11-21 01:55:43,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:55:43,775 INFO L470 AbstractCegarLoop]: Abstraction has 4542 states and 5909 transitions. [2021-11-21 01:55:43,775 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.25) internal successors, (89), 4 states have internal predecessors, (89), 2 states have call successors, (44), 1 states have call predecessors, (44), 2 states have return successors, (41), 2 states have call predecessors, (41), 2 states have call successors, (41) [2021-11-21 01:55:43,776 INFO L276 IsEmpty]: Start isEmpty. Operand 4542 states and 5909 transitions. [2021-11-21 01:55:43,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 328 [2021-11-21 01:55:43,780 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:55:43,780 INFO L514 BasicCegarLoop]: trace histogram [24, 24, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 5, 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] [2021-11-21 01:55:43,838 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_034ee5f8-7088-48e8-b22a-3b7cbc669243/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2021-11-21 01:55:43,993 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_034ee5f8-7088-48e8-b22a-3b7cbc669243/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:55:43,993 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting ar5523_cmdErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2021-11-21 01:55:43,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:55:43,994 INFO L85 PathProgramCache]: Analyzing trace with hash -2110573990, now seen corresponding path program 1 times [2021-11-21 01:55:43,994 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:55:43,994 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1660501802] [2021-11-21 01:55:43,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:55:43,995 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:55:45,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:55:45,334 INFO L134 CoverageAnalysis]: Checked inductivity of 1350 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1349 trivial. 0 not checked. [2021-11-21 01:55:45,334 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:55:45,335 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1660501802] [2021-11-21 01:55:45,335 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1660501802] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-21 01:55:45,335 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [111061737] [2021-11-21 01:55:45,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:55:45,335 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:55:45,336 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_034ee5f8-7088-48e8-b22a-3b7cbc669243/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 01:55:45,336 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_034ee5f8-7088-48e8-b22a-3b7cbc669243/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 01:55:45,353 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_034ee5f8-7088-48e8-b22a-3b7cbc669243/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-11-21 01:55:49,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:55:49,632 INFO L263 TraceCheckSpWp]: Trace formula consists of 7021 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-21 01:55:49,641 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 01:55:50,197 INFO L134 CoverageAnalysis]: Checked inductivity of 1350 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 1347 trivial. 0 not checked. [2021-11-21 01:55:50,197 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 01:55:50,975 INFO L134 CoverageAnalysis]: Checked inductivity of 1350 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1349 trivial. 0 not checked. [2021-11-21 01:55:50,975 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [111061737] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-21 01:55:50,975 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1932158560] [2021-11-21 01:55:51,000 INFO L159 IcfgInterpreter]: Started Sifa with 154 locations of interest [2021-11-21 01:55:51,000 INFO L166 IcfgInterpreter]: Building call graph [2021-11-21 01:55:51,007 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-21 01:55:51,012 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-21 01:55:51,013 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-21 01:56:23,437 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1596 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 174 treesize of output 286 [2021-11-21 01:56:33,222 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1596 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 174 treesize of output 286 [2021-11-21 01:57:10,483 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1596 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 174 treesize of output 286 [2021-11-21 01:57:43,908 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1596 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 174 treesize of output 286 [2021-11-21 01:58:02,424 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1596 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 174 treesize of output 286 [2021-11-21 01:58:25,039 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1596 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 174 treesize of output 286 [2021-11-21 01:59:03,082 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1596 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 174 treesize of output 286 [2021-11-21 02:00:07,282 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1596 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 174 treesize of output 286 [2021-11-21 02:00:37,651 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1596 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 174 treesize of output 286 [2021-11-21 02:01:22,415 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1596 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 174 treesize of output 286 [2021-11-21 02:02:05,090 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1596 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 174 treesize of output 286 [2021-11-21 02:02:23,843 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1596 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 174 treesize of output 286 [2021-11-21 02:02:56,167 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1596 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 174 treesize of output 286