./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--ethernet--icplus--ipg.ko.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5e519f3a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc0b656a-bd04-48e5-beba-017d377d5494/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc0b656a-bd04-48e5-beba-017d377d5494/bin/utaipan-7li7fVZpFI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc0b656a-bd04-48e5-beba-017d377d5494/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc0b656a-bd04-48e5-beba-017d377d5494/bin/utaipan-7li7fVZpFI/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc0b656a-bd04-48e5-beba-017d377d5494/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc0b656a-bd04-48e5-beba-017d377d5494/bin/utaipan-7li7fVZpFI --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 53e062e1035ae1f01c2e809595599fa2661e1ae14b245da0f28d018a9f398780 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-5e519f3 [2022-11-03 02:22:45,290 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 02:22:45,293 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 02:22:45,339 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 02:22:45,341 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 02:22:45,343 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 02:22:45,346 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 02:22:45,350 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 02:22:45,354 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 02:22:45,359 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 02:22:45,360 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 02:22:45,361 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 02:22:45,363 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 02:22:45,367 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 02:22:45,368 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 02:22:45,370 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 02:22:45,372 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 02:22:45,377 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 02:22:45,379 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 02:22:45,381 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 02:22:45,387 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 02:22:45,389 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 02:22:45,390 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 02:22:45,392 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 02:22:45,398 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 02:22:45,403 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 02:22:45,403 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 02:22:45,404 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 02:22:45,406 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 02:22:45,407 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 02:22:45,407 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 02:22:45,409 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 02:22:45,411 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 02:22:45,413 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 02:22:45,414 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 02:22:45,415 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 02:22:45,415 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 02:22:45,416 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 02:22:45,416 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 02:22:45,417 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 02:22:45,418 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 02:22:45,419 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc0b656a-bd04-48e5-beba-017d377d5494/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-03 02:22:45,460 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 02:22:45,460 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 02:22:45,461 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 02:22:45,461 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 02:22:45,462 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 02:22:45,463 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 02:22:45,463 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 02:22:45,463 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 02:22:45,463 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 02:22:45,464 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-03 02:22:45,465 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 02:22:45,465 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 02:22:45,465 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-03 02:22:45,466 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-03 02:22:45,466 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 02:22:45,466 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-03 02:22:45,467 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-03 02:22:45,467 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-03 02:22:45,468 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 02:22:45,468 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-03 02:22:45,468 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 02:22:45,468 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-03 02:22:45,469 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 02:22:45,469 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-03 02:22:45,469 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-03 02:22:45,470 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 02:22:45,470 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-03 02:22:45,470 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 02:22:45,470 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 02:22:45,471 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 02:22:45,471 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 02:22:45,472 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-03 02:22:45,472 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 02:22:45,472 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-03 02:22:45,473 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-03 02:22:45,473 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-03 02:22:45,473 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-03 02:22:45,474 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 02:22:45,474 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc0b656a-bd04-48e5-beba-017d377d5494/bin/utaipan-7li7fVZpFI/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc0b656a-bd04-48e5-beba-017d377d5494/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 53e062e1035ae1f01c2e809595599fa2661e1ae14b245da0f28d018a9f398780 [2022-11-03 02:22:45,823 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 02:22:45,852 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 02:22:45,855 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 02:22:45,856 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 02:22:45,857 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 02:22:45,858 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc0b656a-bd04-48e5-beba-017d377d5494/bin/utaipan-7li7fVZpFI/../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i [2022-11-03 02:22:45,947 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc0b656a-bd04-48e5-beba-017d377d5494/bin/utaipan-7li7fVZpFI/data/4c2e6ca2d/2f3a875a00ce4fd2a02fc7c4b07a9808/FLAGeebce723e [2022-11-03 02:22:46,927 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 02:22:46,928 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc0b656a-bd04-48e5-beba-017d377d5494/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i [2022-11-03 02:22:47,008 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc0b656a-bd04-48e5-beba-017d377d5494/bin/utaipan-7li7fVZpFI/data/4c2e6ca2d/2f3a875a00ce4fd2a02fc7c4b07a9808/FLAGeebce723e [2022-11-03 02:22:47,309 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc0b656a-bd04-48e5-beba-017d377d5494/bin/utaipan-7li7fVZpFI/data/4c2e6ca2d/2f3a875a00ce4fd2a02fc7c4b07a9808 [2022-11-03 02:22:47,312 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 02:22:47,315 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 02:22:47,318 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 02:22:47,318 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 02:22:47,322 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 02:22:47,324 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 02:22:47" (1/1) ... [2022-11-03 02:22:47,325 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@60dfe78e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:22:47, skipping insertion in model container [2022-11-03 02:22:47,325 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 02:22:47" (1/1) ... [2022-11-03 02:22:47,332 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 02:22:47,560 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 02:22:51,720 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_fc0b656a-bd04-48e5-beba-017d377d5494/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[393566,393579] [2022-11-03 02:22:51,723 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_fc0b656a-bd04-48e5-beba-017d377d5494/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[393711,393724] [2022-11-03 02:22:51,724 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_fc0b656a-bd04-48e5-beba-017d377d5494/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[393857,393870] [2022-11-03 02:22:51,731 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_fc0b656a-bd04-48e5-beba-017d377d5494/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[394022,394035] [2022-11-03 02:22:51,732 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_fc0b656a-bd04-48e5-beba-017d377d5494/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[394180,394193] [2022-11-03 02:22:51,732 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_fc0b656a-bd04-48e5-beba-017d377d5494/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[394338,394351] [2022-11-03 02:22:51,733 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_fc0b656a-bd04-48e5-beba-017d377d5494/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[394496,394509] [2022-11-03 02:22:51,733 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_fc0b656a-bd04-48e5-beba-017d377d5494/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[394656,394669] [2022-11-03 02:22:51,734 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_fc0b656a-bd04-48e5-beba-017d377d5494/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[394815,394828] [2022-11-03 02:22:51,734 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_fc0b656a-bd04-48e5-beba-017d377d5494/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[394954,394967] [2022-11-03 02:22:51,735 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_fc0b656a-bd04-48e5-beba-017d377d5494/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[395096,395109] [2022-11-03 02:22:51,736 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_fc0b656a-bd04-48e5-beba-017d377d5494/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[395245,395258] [2022-11-03 02:22:51,738 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_fc0b656a-bd04-48e5-beba-017d377d5494/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[395384,395397] [2022-11-03 02:22:51,739 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_fc0b656a-bd04-48e5-beba-017d377d5494/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[395539,395552] [2022-11-03 02:22:51,740 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_fc0b656a-bd04-48e5-beba-017d377d5494/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[395699,395712] [2022-11-03 02:22:51,740 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_fc0b656a-bd04-48e5-beba-017d377d5494/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[395850,395863] [2022-11-03 02:22:51,741 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_fc0b656a-bd04-48e5-beba-017d377d5494/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[396001,396014] [2022-11-03 02:22:51,741 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_fc0b656a-bd04-48e5-beba-017d377d5494/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[396153,396166] [2022-11-03 02:22:51,742 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_fc0b656a-bd04-48e5-beba-017d377d5494/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[396302,396315] [2022-11-03 02:22:51,742 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_fc0b656a-bd04-48e5-beba-017d377d5494/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[396450,396463] [2022-11-03 02:22:51,742 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_fc0b656a-bd04-48e5-beba-017d377d5494/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[396607,396620] [2022-11-03 02:22:51,743 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_fc0b656a-bd04-48e5-beba-017d377d5494/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[396756,396769] [2022-11-03 02:22:51,743 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_fc0b656a-bd04-48e5-beba-017d377d5494/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[396912,396925] [2022-11-03 02:22:51,744 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_fc0b656a-bd04-48e5-beba-017d377d5494/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[397065,397078] [2022-11-03 02:22:51,744 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_fc0b656a-bd04-48e5-beba-017d377d5494/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[397211,397224] [2022-11-03 02:22:51,745 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_fc0b656a-bd04-48e5-beba-017d377d5494/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[397354,397367] [2022-11-03 02:22:51,745 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_fc0b656a-bd04-48e5-beba-017d377d5494/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[397506,397519] [2022-11-03 02:22:51,746 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_fc0b656a-bd04-48e5-beba-017d377d5494/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[397652,397665] [2022-11-03 02:22:51,746 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_fc0b656a-bd04-48e5-beba-017d377d5494/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[397797,397810] [2022-11-03 02:22:51,747 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_fc0b656a-bd04-48e5-beba-017d377d5494/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[397951,397964] [2022-11-03 02:22:51,747 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_fc0b656a-bd04-48e5-beba-017d377d5494/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[398102,398115] [2022-11-03 02:22:51,748 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_fc0b656a-bd04-48e5-beba-017d377d5494/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[398257,398270] [2022-11-03 02:22:51,748 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_fc0b656a-bd04-48e5-beba-017d377d5494/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[398409,398422] [2022-11-03 02:22:51,749 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_fc0b656a-bd04-48e5-beba-017d377d5494/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[398564,398577] [2022-11-03 02:22:51,749 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_fc0b656a-bd04-48e5-beba-017d377d5494/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[398728,398741] [2022-11-03 02:22:51,750 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_fc0b656a-bd04-48e5-beba-017d377d5494/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[398884,398897] [2022-11-03 02:22:51,750 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_fc0b656a-bd04-48e5-beba-017d377d5494/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[399048,399061] [2022-11-03 02:22:51,751 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_fc0b656a-bd04-48e5-beba-017d377d5494/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[399190,399203] [2022-11-03 02:22:51,751 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_fc0b656a-bd04-48e5-beba-017d377d5494/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[399348,399361] [2022-11-03 02:22:51,752 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_fc0b656a-bd04-48e5-beba-017d377d5494/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[399515,399528] [2022-11-03 02:22:51,752 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_fc0b656a-bd04-48e5-beba-017d377d5494/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[399674,399687] [2022-11-03 02:22:51,752 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_fc0b656a-bd04-48e5-beba-017d377d5494/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[399833,399846] [2022-11-03 02:22:51,753 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_fc0b656a-bd04-48e5-beba-017d377d5494/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[399982,399995] [2022-11-03 02:22:51,753 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_fc0b656a-bd04-48e5-beba-017d377d5494/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[400129,400142] [2022-11-03 02:22:51,754 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_fc0b656a-bd04-48e5-beba-017d377d5494/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[400268,400281] [2022-11-03 02:22:51,754 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_fc0b656a-bd04-48e5-beba-017d377d5494/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[400431,400444] [2022-11-03 02:22:51,755 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_fc0b656a-bd04-48e5-beba-017d377d5494/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[400597,400610] [2022-11-03 02:22:51,755 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_fc0b656a-bd04-48e5-beba-017d377d5494/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[400761,400774] [2022-11-03 02:22:51,755 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_fc0b656a-bd04-48e5-beba-017d377d5494/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[400926,400939] [2022-11-03 02:22:51,756 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_fc0b656a-bd04-48e5-beba-017d377d5494/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[401091,401104] [2022-11-03 02:22:51,756 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_fc0b656a-bd04-48e5-beba-017d377d5494/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[401257,401270] [2022-11-03 02:22:51,757 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_fc0b656a-bd04-48e5-beba-017d377d5494/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[401422,401435] [2022-11-03 02:22:51,757 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_fc0b656a-bd04-48e5-beba-017d377d5494/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[401589,401602] [2022-11-03 02:22:51,758 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_fc0b656a-bd04-48e5-beba-017d377d5494/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[401749,401762] [2022-11-03 02:22:51,758 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_fc0b656a-bd04-48e5-beba-017d377d5494/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[401911,401924] [2022-11-03 02:22:51,759 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_fc0b656a-bd04-48e5-beba-017d377d5494/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[402070,402083] [2022-11-03 02:22:51,759 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_fc0b656a-bd04-48e5-beba-017d377d5494/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[402216,402229] [2022-11-03 02:22:51,759 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_fc0b656a-bd04-48e5-beba-017d377d5494/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[402359,402372] [2022-11-03 02:22:51,760 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_fc0b656a-bd04-48e5-beba-017d377d5494/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[402503,402516] [2022-11-03 02:22:51,760 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_fc0b656a-bd04-48e5-beba-017d377d5494/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[402646,402659] [2022-11-03 02:22:51,761 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_fc0b656a-bd04-48e5-beba-017d377d5494/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[402790,402803] [2022-11-03 02:22:51,761 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_fc0b656a-bd04-48e5-beba-017d377d5494/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[402931,402944] [2022-11-03 02:22:51,762 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_fc0b656a-bd04-48e5-beba-017d377d5494/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[403069,403082] [2022-11-03 02:22:51,762 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_fc0b656a-bd04-48e5-beba-017d377d5494/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[403227,403240] [2022-11-03 02:22:51,763 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_fc0b656a-bd04-48e5-beba-017d377d5494/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[403386,403399] [2022-11-03 02:22:51,763 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_fc0b656a-bd04-48e5-beba-017d377d5494/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[403542,403555] [2022-11-03 02:22:51,764 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_fc0b656a-bd04-48e5-beba-017d377d5494/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[403691,403704] [2022-11-03 02:22:51,764 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_fc0b656a-bd04-48e5-beba-017d377d5494/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[403843,403856] [2022-11-03 02:22:51,764 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_fc0b656a-bd04-48e5-beba-017d377d5494/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[403994,404007] [2022-11-03 02:22:51,765 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_fc0b656a-bd04-48e5-beba-017d377d5494/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[404143,404156] [2022-11-03 02:22:51,765 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_fc0b656a-bd04-48e5-beba-017d377d5494/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[404295,404308] [2022-11-03 02:22:51,766 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_fc0b656a-bd04-48e5-beba-017d377d5494/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[404443,404456] [2022-11-03 02:22:51,766 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_fc0b656a-bd04-48e5-beba-017d377d5494/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[404596,404609] [2022-11-03 02:22:51,767 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_fc0b656a-bd04-48e5-beba-017d377d5494/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[404747,404760] [2022-11-03 02:22:51,767 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_fc0b656a-bd04-48e5-beba-017d377d5494/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[404897,404910] [2022-11-03 02:22:51,767 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_fc0b656a-bd04-48e5-beba-017d377d5494/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[405044,405057] [2022-11-03 02:22:51,768 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_fc0b656a-bd04-48e5-beba-017d377d5494/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[405195,405208] [2022-11-03 02:22:51,768 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_fc0b656a-bd04-48e5-beba-017d377d5494/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[405346,405359] [2022-11-03 02:22:51,769 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_fc0b656a-bd04-48e5-beba-017d377d5494/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[405494,405507] [2022-11-03 02:22:51,769 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_fc0b656a-bd04-48e5-beba-017d377d5494/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[405660,405673] [2022-11-03 02:22:51,770 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_fc0b656a-bd04-48e5-beba-017d377d5494/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[405829,405842] [2022-11-03 02:22:51,770 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_fc0b656a-bd04-48e5-beba-017d377d5494/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[405996,406009] [2022-11-03 02:22:51,770 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_fc0b656a-bd04-48e5-beba-017d377d5494/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[406164,406177] [2022-11-03 02:22:51,771 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_fc0b656a-bd04-48e5-beba-017d377d5494/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[406314,406327] [2022-11-03 02:22:51,771 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_fc0b656a-bd04-48e5-beba-017d377d5494/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[406461,406474] [2022-11-03 02:22:51,772 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_fc0b656a-bd04-48e5-beba-017d377d5494/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[406622,406635] [2022-11-03 02:22:51,772 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_fc0b656a-bd04-48e5-beba-017d377d5494/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[406792,406805] [2022-11-03 02:22:51,773 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_fc0b656a-bd04-48e5-beba-017d377d5494/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[406954,406967] [2022-11-03 02:22:51,799 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 02:22:51,847 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 02:22:52,259 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_fc0b656a-bd04-48e5-beba-017d377d5494/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[393566,393579] [2022-11-03 02:22:52,260 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_fc0b656a-bd04-48e5-beba-017d377d5494/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[393711,393724] [2022-11-03 02:22:52,261 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_fc0b656a-bd04-48e5-beba-017d377d5494/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[393857,393870] [2022-11-03 02:22:52,261 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_fc0b656a-bd04-48e5-beba-017d377d5494/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[394022,394035] [2022-11-03 02:22:52,262 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_fc0b656a-bd04-48e5-beba-017d377d5494/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[394180,394193] [2022-11-03 02:22:52,263 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_fc0b656a-bd04-48e5-beba-017d377d5494/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[394338,394351] [2022-11-03 02:22:52,263 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_fc0b656a-bd04-48e5-beba-017d377d5494/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[394496,394509] [2022-11-03 02:22:52,264 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_fc0b656a-bd04-48e5-beba-017d377d5494/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[394656,394669] [2022-11-03 02:22:52,264 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_fc0b656a-bd04-48e5-beba-017d377d5494/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[394815,394828] [2022-11-03 02:22:52,264 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_fc0b656a-bd04-48e5-beba-017d377d5494/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[394954,394967] [2022-11-03 02:22:52,266 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_fc0b656a-bd04-48e5-beba-017d377d5494/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[395096,395109] [2022-11-03 02:22:52,266 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_fc0b656a-bd04-48e5-beba-017d377d5494/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[395245,395258] [2022-11-03 02:22:52,267 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_fc0b656a-bd04-48e5-beba-017d377d5494/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[395384,395397] [2022-11-03 02:22:52,267 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_fc0b656a-bd04-48e5-beba-017d377d5494/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[395539,395552] [2022-11-03 02:22:52,268 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_fc0b656a-bd04-48e5-beba-017d377d5494/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[395699,395712] [2022-11-03 02:22:52,268 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_fc0b656a-bd04-48e5-beba-017d377d5494/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[395850,395863] [2022-11-03 02:22:52,269 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_fc0b656a-bd04-48e5-beba-017d377d5494/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[396001,396014] [2022-11-03 02:22:52,269 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_fc0b656a-bd04-48e5-beba-017d377d5494/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[396153,396166] [2022-11-03 02:22:52,270 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_fc0b656a-bd04-48e5-beba-017d377d5494/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[396302,396315] [2022-11-03 02:22:52,270 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_fc0b656a-bd04-48e5-beba-017d377d5494/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[396450,396463] [2022-11-03 02:22:52,271 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_fc0b656a-bd04-48e5-beba-017d377d5494/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[396607,396620] [2022-11-03 02:22:52,272 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_fc0b656a-bd04-48e5-beba-017d377d5494/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[396756,396769] [2022-11-03 02:22:52,273 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_fc0b656a-bd04-48e5-beba-017d377d5494/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[396912,396925] [2022-11-03 02:22:52,274 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_fc0b656a-bd04-48e5-beba-017d377d5494/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[397065,397078] [2022-11-03 02:22:52,274 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_fc0b656a-bd04-48e5-beba-017d377d5494/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[397211,397224] [2022-11-03 02:22:52,275 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_fc0b656a-bd04-48e5-beba-017d377d5494/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[397354,397367] [2022-11-03 02:22:52,276 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_fc0b656a-bd04-48e5-beba-017d377d5494/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[397506,397519] [2022-11-03 02:22:52,277 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_fc0b656a-bd04-48e5-beba-017d377d5494/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[397652,397665] [2022-11-03 02:22:52,277 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_fc0b656a-bd04-48e5-beba-017d377d5494/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[397797,397810] [2022-11-03 02:22:52,278 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_fc0b656a-bd04-48e5-beba-017d377d5494/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[397951,397964] [2022-11-03 02:22:52,280 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_fc0b656a-bd04-48e5-beba-017d377d5494/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[398102,398115] [2022-11-03 02:22:52,281 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_fc0b656a-bd04-48e5-beba-017d377d5494/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[398257,398270] [2022-11-03 02:22:52,281 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_fc0b656a-bd04-48e5-beba-017d377d5494/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[398409,398422] [2022-11-03 02:22:52,283 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_fc0b656a-bd04-48e5-beba-017d377d5494/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[398564,398577] [2022-11-03 02:22:52,284 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_fc0b656a-bd04-48e5-beba-017d377d5494/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[398728,398741] [2022-11-03 02:22:52,285 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_fc0b656a-bd04-48e5-beba-017d377d5494/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[398884,398897] [2022-11-03 02:22:52,286 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_fc0b656a-bd04-48e5-beba-017d377d5494/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[399048,399061] [2022-11-03 02:22:52,287 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_fc0b656a-bd04-48e5-beba-017d377d5494/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[399190,399203] [2022-11-03 02:22:52,288 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_fc0b656a-bd04-48e5-beba-017d377d5494/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[399348,399361] [2022-11-03 02:22:52,288 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_fc0b656a-bd04-48e5-beba-017d377d5494/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[399515,399528] [2022-11-03 02:22:52,289 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_fc0b656a-bd04-48e5-beba-017d377d5494/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[399674,399687] [2022-11-03 02:22:52,290 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_fc0b656a-bd04-48e5-beba-017d377d5494/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[399833,399846] [2022-11-03 02:22:52,291 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_fc0b656a-bd04-48e5-beba-017d377d5494/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[399982,399995] [2022-11-03 02:22:52,291 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_fc0b656a-bd04-48e5-beba-017d377d5494/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[400129,400142] [2022-11-03 02:22:52,292 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_fc0b656a-bd04-48e5-beba-017d377d5494/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[400268,400281] [2022-11-03 02:22:52,292 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_fc0b656a-bd04-48e5-beba-017d377d5494/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[400431,400444] [2022-11-03 02:22:52,293 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_fc0b656a-bd04-48e5-beba-017d377d5494/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[400597,400610] [2022-11-03 02:22:52,294 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_fc0b656a-bd04-48e5-beba-017d377d5494/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[400761,400774] [2022-11-03 02:22:52,294 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_fc0b656a-bd04-48e5-beba-017d377d5494/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[400926,400939] [2022-11-03 02:22:52,295 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_fc0b656a-bd04-48e5-beba-017d377d5494/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[401091,401104] [2022-11-03 02:22:52,295 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_fc0b656a-bd04-48e5-beba-017d377d5494/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[401257,401270] [2022-11-03 02:22:52,296 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_fc0b656a-bd04-48e5-beba-017d377d5494/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[401422,401435] [2022-11-03 02:22:52,296 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_fc0b656a-bd04-48e5-beba-017d377d5494/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[401589,401602] [2022-11-03 02:22:52,297 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_fc0b656a-bd04-48e5-beba-017d377d5494/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[401749,401762] [2022-11-03 02:22:52,298 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_fc0b656a-bd04-48e5-beba-017d377d5494/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[401911,401924] [2022-11-03 02:22:52,299 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_fc0b656a-bd04-48e5-beba-017d377d5494/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[402070,402083] [2022-11-03 02:22:52,303 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_fc0b656a-bd04-48e5-beba-017d377d5494/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[402216,402229] [2022-11-03 02:22:52,303 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_fc0b656a-bd04-48e5-beba-017d377d5494/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[402359,402372] [2022-11-03 02:22:52,304 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_fc0b656a-bd04-48e5-beba-017d377d5494/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[402503,402516] [2022-11-03 02:22:52,304 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_fc0b656a-bd04-48e5-beba-017d377d5494/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[402646,402659] [2022-11-03 02:22:52,306 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_fc0b656a-bd04-48e5-beba-017d377d5494/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[402790,402803] [2022-11-03 02:22:52,307 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_fc0b656a-bd04-48e5-beba-017d377d5494/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[402931,402944] [2022-11-03 02:22:52,313 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_fc0b656a-bd04-48e5-beba-017d377d5494/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[403069,403082] [2022-11-03 02:22:52,314 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_fc0b656a-bd04-48e5-beba-017d377d5494/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[403227,403240] [2022-11-03 02:22:52,315 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_fc0b656a-bd04-48e5-beba-017d377d5494/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[403386,403399] [2022-11-03 02:22:52,320 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_fc0b656a-bd04-48e5-beba-017d377d5494/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[403542,403555] [2022-11-03 02:22:52,322 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_fc0b656a-bd04-48e5-beba-017d377d5494/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[403691,403704] [2022-11-03 02:22:52,322 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_fc0b656a-bd04-48e5-beba-017d377d5494/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[403843,403856] [2022-11-03 02:22:52,323 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_fc0b656a-bd04-48e5-beba-017d377d5494/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[403994,404007] [2022-11-03 02:22:52,323 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_fc0b656a-bd04-48e5-beba-017d377d5494/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[404143,404156] [2022-11-03 02:22:52,323 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_fc0b656a-bd04-48e5-beba-017d377d5494/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[404295,404308] [2022-11-03 02:22:52,324 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_fc0b656a-bd04-48e5-beba-017d377d5494/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[404443,404456] [2022-11-03 02:22:52,324 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_fc0b656a-bd04-48e5-beba-017d377d5494/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[404596,404609] [2022-11-03 02:22:52,325 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_fc0b656a-bd04-48e5-beba-017d377d5494/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[404747,404760] [2022-11-03 02:22:52,325 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_fc0b656a-bd04-48e5-beba-017d377d5494/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[404897,404910] [2022-11-03 02:22:52,325 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_fc0b656a-bd04-48e5-beba-017d377d5494/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[405044,405057] [2022-11-03 02:22:52,326 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_fc0b656a-bd04-48e5-beba-017d377d5494/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[405195,405208] [2022-11-03 02:22:52,326 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_fc0b656a-bd04-48e5-beba-017d377d5494/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[405346,405359] [2022-11-03 02:22:52,328 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_fc0b656a-bd04-48e5-beba-017d377d5494/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[405494,405507] [2022-11-03 02:22:52,329 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_fc0b656a-bd04-48e5-beba-017d377d5494/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[405660,405673] [2022-11-03 02:22:52,330 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_fc0b656a-bd04-48e5-beba-017d377d5494/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[405829,405842] [2022-11-03 02:22:52,331 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_fc0b656a-bd04-48e5-beba-017d377d5494/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[405996,406009] [2022-11-03 02:22:52,332 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_fc0b656a-bd04-48e5-beba-017d377d5494/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[406164,406177] [2022-11-03 02:22:52,332 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_fc0b656a-bd04-48e5-beba-017d377d5494/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[406314,406327] [2022-11-03 02:22:52,333 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_fc0b656a-bd04-48e5-beba-017d377d5494/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[406461,406474] [2022-11-03 02:22:52,333 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_fc0b656a-bd04-48e5-beba-017d377d5494/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[406622,406635] [2022-11-03 02:22:52,333 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_fc0b656a-bd04-48e5-beba-017d377d5494/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[406792,406805] [2022-11-03 02:22:52,334 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_fc0b656a-bd04-48e5-beba-017d377d5494/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[406954,406967] [2022-11-03 02:22:52,342 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 02:22:52,566 INFO L208 MainTranslator]: Completed translation [2022-11-03 02:22:52,566 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:22:52 WrapperNode [2022-11-03 02:22:52,566 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 02:22:52,568 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 02:22:52,568 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 02:22:52,568 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 02:22:52,576 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:22:52" (1/1) ... [2022-11-03 02:22:52,668 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:22:52" (1/1) ... [2022-11-03 02:22:52,893 INFO L138 Inliner]: procedures = 655, calls = 1959, calls flagged for inlining = 296, calls inlined = 213, statements flattened = 4143 [2022-11-03 02:22:52,897 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 02:22:52,898 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 02:22:52,898 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 02:22:52,899 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 02:22:52,908 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:22:52" (1/1) ... [2022-11-03 02:22:52,908 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:22:52" (1/1) ... [2022-11-03 02:22:52,936 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:22:52" (1/1) ... [2022-11-03 02:22:52,936 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:22:52" (1/1) ... [2022-11-03 02:22:53,029 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:22:52" (1/1) ... [2022-11-03 02:22:53,044 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:22:52" (1/1) ... [2022-11-03 02:22:53,068 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:22:52" (1/1) ... [2022-11-03 02:22:53,082 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:22:52" (1/1) ... [2022-11-03 02:22:53,127 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 02:22:53,128 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 02:22:53,129 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 02:22:53,129 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 02:22:53,130 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:22:52" (1/1) ... [2022-11-03 02:22:53,137 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 02:22:53,148 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc0b656a-bd04-48e5-beba-017d377d5494/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:22:53,166 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc0b656a-bd04-48e5-beba-017d377d5494/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 02:22:53,175 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc0b656a-bd04-48e5-beba-017d377d5494/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 02:22:53,212 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_coherent_check_final_state [2022-11-03 02:22:53,213 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_coherent_check_final_state [2022-11-03 02:22:53,213 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_write [2022-11-03 02:22:53,213 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_write [2022-11-03 02:22:53,213 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2022-11-03 02:22:53,213 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2022-11-03 02:22:53,214 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-11-03 02:22:53,214 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-11-03 02:22:53,214 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-03 02:22:53,214 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-03 02:22:53,216 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_mii_mutex_of_ipg_nic_private [2022-11-03 02:22:53,216 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_mii_mutex_of_ipg_nic_private [2022-11-03 02:22:53,216 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_mmc_sdio_func_check_final_state [2022-11-03 02:22:53,217 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_mmc_sdio_func_check_final_state [2022-11-03 02:22:53,217 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2022-11-03 02:22:53,217 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2022-11-03 02:22:53,217 INFO L130 BoogieDeclarations]: Found specification of procedure init_tfdlist [2022-11-03 02:22:53,217 INFO L138 BoogieDeclarations]: Found implementation of procedure init_tfdlist [2022-11-03 02:22:53,217 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-11-03 02:22:53,218 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-11-03 02:22:53,218 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-11-03 02:22:53,218 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-11-03 02:22:53,218 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite16 [2022-11-03 02:22:53,218 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite16 [2022-11-03 02:22:53,218 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_set_multicast_list [2022-11-03 02:22:53,218 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_set_multicast_list [2022-11-03 02:22:53,219 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite8 [2022-11-03 02:22:53,219 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite8 [2022-11-03 02:22:53,219 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_arch_io_check_final_state [2022-11-03 02:22:53,219 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_arch_io_check_final_state [2022-11-03 02:22:53,219 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_module_check_final_state [2022-11-03 02:22:53,219 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_module_check_final_state [2022-11-03 02:22:53,219 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32 [2022-11-03 02:22:53,219 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32 [2022-11-03 02:22:53,220 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2022-11-03 02:22:53,220 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2022-11-03 02:22:53,220 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_rx_clear [2022-11-03 02:22:53,220 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_rx_clear [2022-11-03 02:22:53,220 INFO L130 BoogieDeclarations]: Found specification of procedure skb_checksum_none_assert [2022-11-03 02:22:53,220 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_checksum_none_assert [2022-11-03 02:22:53,220 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-03 02:22:53,221 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-11-03 02:22:53,221 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2022-11-03 02:22:53,221 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2022-11-03 02:22:53,221 INFO L130 BoogieDeclarations]: Found specification of procedure netif_rx [2022-11-03 02:22:53,221 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_rx [2022-11-03 02:22:53,221 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-11-03 02:22:53,221 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-11-03 02:22:53,222 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-03 02:22:53,222 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-03 02:22:53,222 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_queue_check_final_state [2022-11-03 02:22:53,222 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_queue_check_final_state [2022-11-03 02:22:53,222 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2022-11-03 02:22:53,222 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2022-11-03 02:22:53,222 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-03 02:22:53,223 INFO L130 BoogieDeclarations]: Found specification of procedure read_phy_bit [2022-11-03 02:22:53,223 INFO L138 BoogieDeclarations]: Found implementation of procedure read_phy_bit [2022-11-03 02:22:53,223 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_request_check_final_state [2022-11-03 02:22:53,223 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_request_check_final_state [2022-11-03 02:22:53,224 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_remove [2022-11-03 02:22:53,224 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_remove [2022-11-03 02:22:53,224 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-11-03 02:22:53,224 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-11-03 02:22:53,225 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-03 02:22:53,229 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-11-03 02:22:53,229 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-11-03 02:22:53,229 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_open [2022-11-03 02:22:53,229 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_open [2022-11-03 02:22:53,230 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-03 02:22:53,230 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_in_interrupt_context [2022-11-03 02:22:53,230 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_in_interrupt_context [2022-11-03 02:22:53,230 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-11-03 02:22:53,230 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-11-03 02:22:53,230 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_bh_check_final_state [2022-11-03 02:22:53,233 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_bh_check_final_state [2022-11-03 02:22:53,233 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-03 02:22:53,233 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_genhd_check_final_state [2022-11-03 02:22:53,233 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_genhd_check_final_state [2022-11-03 02:22:53,234 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-11-03 02:22:53,234 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-11-03 02:22:53,234 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-03 02:22:53,234 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-03 02:22:53,234 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_register_reset_error_counter [2022-11-03 02:22:53,234 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_register_reset_error_counter [2022-11-03 02:22:53,234 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2022-11-03 02:22:53,235 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2022-11-03 02:22:53,235 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-11-03 02:22:53,235 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-11-03 02:22:53,235 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-11-03 02:22:53,235 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-11-03 02:22:53,235 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_dma_mask [2022-11-03 02:22:53,235 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_dma_mask [2022-11-03 02:22:53,235 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2022-11-03 02:22:53,236 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2022-11-03 02:22:53,236 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_lib_idr_check_final_state [2022-11-03 02:22:53,236 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_lib_idr_check_final_state [2022-11-03 02:22:53,236 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-11-03 02:22:53,236 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-11-03 02:22:53,236 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_srcu_check_final_state [2022-11-03 02:22:53,236 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_srcu_check_final_state [2022-11-03 02:22:53,237 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_get_stats [2022-11-03 02:22:53,237 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_get_stats [2022-11-03 02:22:53,237 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_rxrestore [2022-11-03 02:22:53,237 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_rxrestore [2022-11-03 02:22:53,237 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-03 02:22:53,237 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_spinlock_spin_unlock_lock_of_ipg_nic_private [2022-11-03 02:22:53,237 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_spinlock_spin_unlock_lock_of_ipg_nic_private [2022-11-03 02:22:53,237 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-03 02:22:53,238 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-03 02:22:53,238 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-03 02:22:53,238 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-03 02:22:53,238 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-03 02:22:53,238 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-03 02:22:53,238 INFO L130 BoogieDeclarations]: Found specification of procedure ioread16 [2022-11-03 02:22:53,238 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread16 [2022-11-03 02:22:53,239 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-03 02:22:53,239 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-03 02:22:53,239 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_ioaddr [2022-11-03 02:22:53,239 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_ioaddr [2022-11-03 02:22:53,240 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-11-03 02:22:53,240 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-11-03 02:22:53,240 INFO L130 BoogieDeclarations]: Found specification of procedure ioread8 [2022-11-03 02:22:53,241 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread8 [2022-11-03 02:22:53,241 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-03 02:22:53,241 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-03 02:22:53,241 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2022-11-03 02:22:53,241 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2022-11-03 02:22:53,241 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_register_reset_error_counter [2022-11-03 02:22:53,241 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_register_reset_error_counter [2022-11-03 02:22:53,242 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2022-11-03 02:22:53,242 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2022-11-03 02:22:53,242 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_get_rxbuff [2022-11-03 02:22:53,242 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_get_rxbuff [2022-11-03 02:22:53,242 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_write_phy_ctl [2022-11-03 02:22:53,242 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_write_phy_ctl [2022-11-03 02:22:53,242 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_delayed_work [2022-11-03 02:22:53,242 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_delayed_work [2022-11-03 02:22:53,243 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-11-03 02:22:53,243 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-11-03 02:22:53,243 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_drive_phy_ctl_low_high [2022-11-03 02:22:53,243 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_drive_phy_ctl_low_high [2022-11-03 02:22:53,243 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_read [2022-11-03 02:22:53,243 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_read [2022-11-03 02:22:53,243 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 02:22:53,244 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 02:22:53,244 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_txfree [2022-11-03 02:22:53,244 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_txfree [2022-11-03 02:22:53,244 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-03 02:22:53,244 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-03 02:22:53,244 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-03 02:22:53,244 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-03 02:22:53,244 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_tx_timeout [2022-11-03 02:22:53,245 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_tx_timeout [2022-11-03 02:22:53,245 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-11-03 02:22:53,245 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-11-03 02:22:53,245 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2022-11-03 02:22:53,245 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2022-11-03 02:22:53,245 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2022-11-03 02:22:53,245 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2022-11-03 02:22:53,245 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-11-03 02:22:53,246 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-11-03 02:22:53,246 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_sock_check_final_state [2022-11-03 02:22:53,246 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_sock_check_final_state [2022-11-03 02:22:53,246 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_tx_clear [2022-11-03 02:22:53,246 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_tx_clear [2022-11-03 02:22:53,246 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_gadget_check_final_state [2022-11-03 02:22:53,246 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_gadget_check_final_state [2022-11-03 02:22:53,246 INFO L130 BoogieDeclarations]: Found specification of procedure read_eeprom [2022-11-03 02:22:53,247 INFO L138 BoogieDeclarations]: Found implementation of procedure read_eeprom [2022-11-03 02:22:53,247 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-03 02:22:53,247 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_fs_sysfs_check_final_state [2022-11-03 02:22:53,247 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_fs_sysfs_check_final_state [2022-11-03 02:22:53,247 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2022-11-03 02:22:53,247 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2022-11-03 02:22:53,247 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-03 02:22:53,248 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_rx_free_skb [2022-11-03 02:22:53,248 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_rx_free_skb [2022-11-03 02:22:53,248 INFO L130 BoogieDeclarations]: Found specification of procedure send_three_state [2022-11-03 02:22:53,248 INFO L138 BoogieDeclarations]: Found implementation of procedure send_three_state [2022-11-03 02:22:53,248 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-03 02:22:53,248 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2022-11-03 02:22:53,248 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2022-11-03 02:22:53,248 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_rtnetlink_check_final_state [2022-11-03 02:22:53,249 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_rtnetlink_check_final_state [2022-11-03 02:22:53,249 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-11-03 02:22:53,249 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-11-03 02:22:53,249 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-11-03 02:22:53,249 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-11-03 02:22:53,249 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2022-11-03 02:22:53,249 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2022-11-03 02:22:53,249 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_irq [2022-11-03 02:22:53,250 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_irq [2022-11-03 02:22:53,250 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_io_config [2022-11-03 02:22:53,250 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_io_config [2022-11-03 02:22:53,250 INFO L130 BoogieDeclarations]: Found specification of procedure init_rfdlist [2022-11-03 02:22:53,250 INFO L138 BoogieDeclarations]: Found implementation of procedure init_rfdlist [2022-11-03 02:22:53,317 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_check_final_state [2022-11-03 02:22:53,317 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_check_final_state [2022-11-03 02:22:53,317 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2022-11-03 02:22:53,317 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2022-11-03 02:22:53,318 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2022-11-03 02:22:53,318 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2022-11-03 02:22:53,318 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_urb_check_final_state [2022-11-03 02:22:53,318 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_urb_check_final_state [2022-11-03 02:22:53,318 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-11-03 02:22:53,318 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-11-03 02:22:53,318 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-11-03 02:22:53,318 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-11-03 02:22:53,318 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_rwlock_check_final_state [2022-11-03 02:22:53,318 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_rwlock_check_final_state [2022-11-03 02:22:53,318 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2022-11-03 02:22:53,318 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2022-11-03 02:22:53,318 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-03 02:22:53,319 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_fs_char_dev_check_final_state [2022-11-03 02:22:53,319 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_fs_char_dev_check_final_state [2022-11-03 02:22:53,319 INFO L130 BoogieDeclarations]: Found specification of procedure eth_type_trans [2022-11-03 02:22:53,319 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_type_trans [2022-11-03 02:22:53,319 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-03 02:22:53,319 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-03 02:22:53,319 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nway_reset [2022-11-03 02:22:53,319 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nway_reset [2022-11-03 02:22:53,319 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_drivers_base_class_check_final_state [2022-11-03 02:22:53,319 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_drivers_base_class_check_final_state [2022-11-03 02:22:53,319 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_stop [2022-11-03 02:22:53,319 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_stop [2022-11-03 02:22:53,319 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_config_autoneg [2022-11-03 02:22:53,319 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_config_autoneg [2022-11-03 02:22:53,320 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-11-03 02:22:53,320 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-11-03 02:22:53,320 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_reset [2022-11-03 02:22:53,320 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_reset [2022-11-03 02:22:53,320 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_spinlock_spin_lock_lock_of_ipg_nic_private [2022-11-03 02:22:53,320 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_spinlock_spin_lock_lock_of_ipg_nic_private [2022-11-03 02:22:53,320 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_lock_mii_mutex_of_ipg_nic_private [2022-11-03 02:22:53,320 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_lock_mii_mutex_of_ipg_nic_private [2022-11-03 02:22:53,320 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_sched_check_final_state [2022-11-03 02:22:53,320 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_sched_check_final_state [2022-11-03 02:22:53,320 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2022-11-03 02:22:53,320 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2022-11-03 02:22:53,320 INFO L130 BoogieDeclarations]: Found specification of procedure dma_alloc_attrs [2022-11-03 02:22:53,320 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_alloc_attrs [2022-11-03 02:22:53,321 INFO L130 BoogieDeclarations]: Found specification of procedure delayed_work_timer_fn [2022-11-03 02:22:53,321 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-03 02:22:53,321 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_rx_check_error [2022-11-03 02:22:53,321 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_rx_check_error [2022-11-03 02:22:54,246 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 02:22:54,257 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 02:22:55,662 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-03 02:22:59,552 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 02:23:00,610 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 02:23:00,610 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-03 02:23:00,622 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:23:00 BoogieIcfgContainer [2022-11-03 02:23:00,622 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 02:23:00,625 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 02:23:00,625 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 02:23:00,628 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 02:23:00,628 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 02:22:47" (1/3) ... [2022-11-03 02:23:00,629 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c16388f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 02:23:00, skipping insertion in model container [2022-11-03 02:23:00,630 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:22:52" (2/3) ... [2022-11-03 02:23:00,630 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c16388f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 02:23:00, skipping insertion in model container [2022-11-03 02:23:00,630 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:23:00" (3/3) ... [2022-11-03 02:23:00,632 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i [2022-11-03 02:23:00,652 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 02:23:00,652 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 29 error locations. [2022-11-03 02:23:00,777 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 02:23:00,786 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@2b3ee842, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 02:23:00,786 INFO L358 AbstractCegarLoop]: Starting to check reachability of 29 error locations. [2022-11-03 02:23:00,796 INFO L276 IsEmpty]: Start isEmpty. Operand has 1367 states, 769 states have (on average 1.2860858257477243) internal successors, (989), 838 states have internal predecessors, (989), 457 states have call successors, (457), 114 states have call predecessors, (457), 113 states have return successors, (453), 450 states have call predecessors, (453), 453 states have call successors, (453) [2022-11-03 02:23:00,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-11-03 02:23:00,808 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:23:00,809 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 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] [2022-11-03 02:23:00,809 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_linux_arch_io_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2022-11-03 02:23:00,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:23:00,816 INFO L85 PathProgramCache]: Analyzing trace with hash 1434152905, now seen corresponding path program 1 times [2022-11-03 02:23:00,826 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:23:00,826 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [869843001] [2022-11-03 02:23:00,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:23:00,827 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:23:01,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:23:01,699 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-03 02:23:01,699 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:23:01,700 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [869843001] [2022-11-03 02:23:01,700 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [869843001] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:23:01,703 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:23:01,703 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 02:23:01,705 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [767812015] [2022-11-03 02:23:01,705 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:23:01,710 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 02:23:01,710 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:23:01,745 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 02:23:01,746 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 02:23:01,751 INFO L87 Difference]: Start difference. First operand has 1367 states, 769 states have (on average 1.2860858257477243) internal successors, (989), 838 states have internal predecessors, (989), 457 states have call successors, (457), 114 states have call predecessors, (457), 113 states have return successors, (453), 450 states have call predecessors, (453), 453 states have call successors, (453) Second operand has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-11-03 02:23:04,335 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:23:05,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:23:05,563 INFO L93 Difference]: Finished difference Result 2702 states and 3841 transitions. [2022-11-03 02:23:05,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 02:23:05,566 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 47 [2022-11-03 02:23:05,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:23:05,588 INFO L225 Difference]: With dead ends: 2702 [2022-11-03 02:23:05,588 INFO L226 Difference]: Without dead ends: 1346 [2022-11-03 02:23:05,606 INFO L412 NwaCegarLoop]: 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 [2022-11-03 02:23:05,608 INFO L413 NwaCegarLoop]: 1634 mSDtfsCounter, 1834 mSDsluCounter, 1851 mSDsCounter, 0 mSdLazyCounter, 437 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1836 SdHoareTripleChecker+Valid, 3268 SdHoareTripleChecker+Invalid, 437 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 437 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2022-11-03 02:23:05,609 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1836 Valid, 3268 Invalid, 437 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 437 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2022-11-03 02:23:05,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1346 states. [2022-11-03 02:23:05,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1346 to 1346. [2022-11-03 02:23:05,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1346 states, 755 states have (on average 1.2437086092715233) internal successors, (939), 820 states have internal predecessors, (939), 451 states have call successors, (451), 113 states have call predecessors, (451), 112 states have return successors, (449), 446 states have call predecessors, (449), 449 states have call successors, (449) [2022-11-03 02:23:05,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1346 states to 1346 states and 1839 transitions. [2022-11-03 02:23:05,799 INFO L78 Accepts]: Start accepts. Automaton has 1346 states and 1839 transitions. Word has length 47 [2022-11-03 02:23:05,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:23:05,801 INFO L495 AbstractCegarLoop]: Abstraction has 1346 states and 1839 transitions. [2022-11-03 02:23:05,801 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-11-03 02:23:05,802 INFO L276 IsEmpty]: Start isEmpty. Operand 1346 states and 1839 transitions. [2022-11-03 02:23:05,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-11-03 02:23:05,805 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:23:05,805 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 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] [2022-11-03 02:23:05,806 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-03 02:23:05,806 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_linux_block_genhd_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2022-11-03 02:23:05,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:23:05,807 INFO L85 PathProgramCache]: Analyzing trace with hash -1851701310, now seen corresponding path program 1 times [2022-11-03 02:23:05,807 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:23:05,807 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [242041343] [2022-11-03 02:23:05,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:23:05,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:23:05,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:23:06,199 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-03 02:23:06,199 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:23:06,199 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [242041343] [2022-11-03 02:23:06,200 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [242041343] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:23:06,200 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:23:06,200 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 02:23:06,200 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [769200524] [2022-11-03 02:23:06,200 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:23:06,202 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 02:23:06,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:23:06,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 02:23:06,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 02:23:06,203 INFO L87 Difference]: Start difference. First operand 1346 states and 1839 transitions. Second operand has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 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) [2022-11-03 02:23:07,617 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:23:09,631 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:23:10,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:23:10,768 INFO L93 Difference]: Finished difference Result 1346 states and 1839 transitions. [2022-11-03 02:23:10,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 02:23:10,769 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 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 52 [2022-11-03 02:23:10,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:23:10,778 INFO L225 Difference]: With dead ends: 1346 [2022-11-03 02:23:10,778 INFO L226 Difference]: Without dead ends: 1344 [2022-11-03 02:23:10,779 INFO L412 NwaCegarLoop]: 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 [2022-11-03 02:23:10,780 INFO L413 NwaCegarLoop]: 1618 mSDtfsCounter, 1816 mSDsluCounter, 1834 mSDsCounter, 0 mSdLazyCounter, 434 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1818 SdHoareTripleChecker+Valid, 3236 SdHoareTripleChecker+Invalid, 435 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 434 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2022-11-03 02:23:10,780 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1818 Valid, 3236 Invalid, 435 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 434 Invalid, 1 Unknown, 0 Unchecked, 4.4s Time] [2022-11-03 02:23:10,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1344 states. [2022-11-03 02:23:10,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1344 to 1344. [2022-11-03 02:23:10,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1344 states, 754 states have (on average 1.242705570291777) internal successors, (937), 818 states have internal predecessors, (937), 451 states have call successors, (451), 113 states have call predecessors, (451), 112 states have return successors, (449), 446 states have call predecessors, (449), 449 states have call successors, (449) [2022-11-03 02:23:10,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1344 states to 1344 states and 1837 transitions. [2022-11-03 02:23:10,883 INFO L78 Accepts]: Start accepts. Automaton has 1344 states and 1837 transitions. Word has length 52 [2022-11-03 02:23:10,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:23:10,884 INFO L495 AbstractCegarLoop]: Abstraction has 1344 states and 1837 transitions. [2022-11-03 02:23:10,885 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 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) [2022-11-03 02:23:10,885 INFO L276 IsEmpty]: Start isEmpty. Operand 1344 states and 1837 transitions. [2022-11-03 02:23:10,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-11-03 02:23:10,895 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:23:10,895 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 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] [2022-11-03 02:23:10,896 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-03 02:23:10,896 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_linux_block_queue_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2022-11-03 02:23:10,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:23:10,906 INFO L85 PathProgramCache]: Analyzing trace with hash 339082594, now seen corresponding path program 1 times [2022-11-03 02:23:10,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:23:10,906 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1000925632] [2022-11-03 02:23:10,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:23:10,907 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:23:10,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:23:11,310 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-03 02:23:11,310 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:23:11,310 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1000925632] [2022-11-03 02:23:11,311 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1000925632] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:23:11,311 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:23:11,311 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 02:23:11,311 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [38685935] [2022-11-03 02:23:11,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:23:11,312 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 02:23:11,312 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:23:11,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 02:23:11,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 02:23:11,313 INFO L87 Difference]: Start difference. First operand 1344 states and 1837 transitions. Second operand has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 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) [2022-11-03 02:23:13,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:23:13,632 INFO L93 Difference]: Finished difference Result 1344 states and 1837 transitions. [2022-11-03 02:23:13,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 02:23:13,633 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 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 57 [2022-11-03 02:23:13,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:23:13,643 INFO L225 Difference]: With dead ends: 1344 [2022-11-03 02:23:13,643 INFO L226 Difference]: Without dead ends: 1342 [2022-11-03 02:23:13,644 INFO L412 NwaCegarLoop]: 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 [2022-11-03 02:23:13,645 INFO L413 NwaCegarLoop]: 1616 mSDtfsCounter, 1813 mSDsluCounter, 1832 mSDsCounter, 0 mSdLazyCounter, 435 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1815 SdHoareTripleChecker+Valid, 3232 SdHoareTripleChecker+Invalid, 435 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 435 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-11-03 02:23:13,646 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1815 Valid, 3232 Invalid, 435 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 435 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-11-03 02:23:13,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1342 states. [2022-11-03 02:23:13,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1342 to 1342. [2022-11-03 02:23:13,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1342 states, 753 states have (on average 1.2416998671978752) internal successors, (935), 816 states have internal predecessors, (935), 451 states have call successors, (451), 113 states have call predecessors, (451), 112 states have return successors, (449), 446 states have call predecessors, (449), 449 states have call successors, (449) [2022-11-03 02:23:13,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1342 states to 1342 states and 1835 transitions. [2022-11-03 02:23:13,767 INFO L78 Accepts]: Start accepts. Automaton has 1342 states and 1835 transitions. Word has length 57 [2022-11-03 02:23:13,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:23:13,770 INFO L495 AbstractCegarLoop]: Abstraction has 1342 states and 1835 transitions. [2022-11-03 02:23:13,770 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 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) [2022-11-03 02:23:13,770 INFO L276 IsEmpty]: Start isEmpty. Operand 1342 states and 1835 transitions. [2022-11-03 02:23:13,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2022-11-03 02:23:13,774 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:23:13,774 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 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] [2022-11-03 02:23:13,775 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-03 02:23:13,775 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_linux_block_request_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2022-11-03 02:23:13,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:23:13,776 INFO L85 PathProgramCache]: Analyzing trace with hash -599938692, now seen corresponding path program 1 times [2022-11-03 02:23:13,776 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:23:13,776 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [373947407] [2022-11-03 02:23:13,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:23:13,777 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:23:13,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:23:14,195 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-03 02:23:14,195 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:23:14,195 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [373947407] [2022-11-03 02:23:14,195 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [373947407] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:23:14,196 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:23:14,196 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 02:23:14,196 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [833562709] [2022-11-03 02:23:14,196 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:23:14,197 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 02:23:14,197 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:23:14,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 02:23:14,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 02:23:14,198 INFO L87 Difference]: Start difference. First operand 1342 states and 1835 transitions. Second operand has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 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) [2022-11-03 02:23:16,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:23:16,562 INFO L93 Difference]: Finished difference Result 1342 states and 1835 transitions. [2022-11-03 02:23:16,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 02:23:16,562 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 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 62 [2022-11-03 02:23:16,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:23:16,571 INFO L225 Difference]: With dead ends: 1342 [2022-11-03 02:23:16,571 INFO L226 Difference]: Without dead ends: 1340 [2022-11-03 02:23:16,572 INFO L412 NwaCegarLoop]: 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 [2022-11-03 02:23:16,573 INFO L413 NwaCegarLoop]: 1614 mSDtfsCounter, 1810 mSDsluCounter, 1830 mSDsCounter, 0 mSdLazyCounter, 435 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1812 SdHoareTripleChecker+Valid, 3228 SdHoareTripleChecker+Invalid, 435 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 435 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-11-03 02:23:16,573 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1812 Valid, 3228 Invalid, 435 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 435 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-11-03 02:23:16,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1340 states. [2022-11-03 02:23:16,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1340 to 1340. [2022-11-03 02:23:16,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1340 states, 752 states have (on average 1.240691489361702) internal successors, (933), 814 states have internal predecessors, (933), 451 states have call successors, (451), 113 states have call predecessors, (451), 112 states have return successors, (449), 446 states have call predecessors, (449), 449 states have call successors, (449) [2022-11-03 02:23:16,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1340 states to 1340 states and 1833 transitions. [2022-11-03 02:23:16,663 INFO L78 Accepts]: Start accepts. Automaton has 1340 states and 1833 transitions. Word has length 62 [2022-11-03 02:23:16,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:23:16,664 INFO L495 AbstractCegarLoop]: Abstraction has 1340 states and 1833 transitions. [2022-11-03 02:23:16,664 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 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) [2022-11-03 02:23:16,665 INFO L276 IsEmpty]: Start isEmpty. Operand 1340 states and 1833 transitions. [2022-11-03 02:23:16,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-11-03 02:23:16,666 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:23:16,666 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 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] [2022-11-03 02:23:16,666 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-03 02:23:16,666 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_linux_drivers_base_class_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2022-11-03 02:23:16,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:23:16,667 INFO L85 PathProgramCache]: Analyzing trace with hash -1393516436, now seen corresponding path program 1 times [2022-11-03 02:23:16,667 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:23:16,667 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1751049459] [2022-11-03 02:23:16,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:23:16,668 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:23:16,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:23:16,986 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-03 02:23:16,987 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:23:16,987 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1751049459] [2022-11-03 02:23:16,987 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1751049459] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:23:16,987 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:23:16,987 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 02:23:16,988 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2034294140] [2022-11-03 02:23:16,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:23:16,989 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 02:23:16,989 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:23:16,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 02:23:16,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 02:23:16,990 INFO L87 Difference]: Start difference. First operand 1340 states and 1833 transitions. Second operand has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 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) [2022-11-03 02:23:19,486 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:23:20,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:23:20,479 INFO L93 Difference]: Finished difference Result 1340 states and 1833 transitions. [2022-11-03 02:23:20,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 02:23:20,480 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 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 67 [2022-11-03 02:23:20,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:23:20,488 INFO L225 Difference]: With dead ends: 1340 [2022-11-03 02:23:20,488 INFO L226 Difference]: Without dead ends: 1338 [2022-11-03 02:23:20,490 INFO L412 NwaCegarLoop]: 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 [2022-11-03 02:23:20,490 INFO L413 NwaCegarLoop]: 1612 mSDtfsCounter, 1807 mSDsluCounter, 1828 mSDsCounter, 0 mSdLazyCounter, 435 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1809 SdHoareTripleChecker+Valid, 3224 SdHoareTripleChecker+Invalid, 435 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 435 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-11-03 02:23:20,491 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1809 Valid, 3224 Invalid, 435 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 435 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2022-11-03 02:23:20,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1338 states. [2022-11-03 02:23:20,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1338 to 1338. [2022-11-03 02:23:20,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1338 states, 751 states have (on average 1.2396804260985352) internal successors, (931), 812 states have internal predecessors, (931), 451 states have call successors, (451), 113 states have call predecessors, (451), 112 states have return successors, (449), 446 states have call predecessors, (449), 449 states have call successors, (449) [2022-11-03 02:23:20,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1338 states to 1338 states and 1831 transitions. [2022-11-03 02:23:20,588 INFO L78 Accepts]: Start accepts. Automaton has 1338 states and 1831 transitions. Word has length 67 [2022-11-03 02:23:20,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:23:20,588 INFO L495 AbstractCegarLoop]: Abstraction has 1338 states and 1831 transitions. [2022-11-03 02:23:20,588 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 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) [2022-11-03 02:23:20,589 INFO L276 IsEmpty]: Start isEmpty. Operand 1338 states and 1831 transitions. [2022-11-03 02:23:20,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-11-03 02:23:20,590 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:23:20,590 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-11-03 02:23:20,590 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-03 02:23:20,590 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2022-11-03 02:23:20,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:23:20,591 INFO L85 PathProgramCache]: Analyzing trace with hash 943672782, now seen corresponding path program 1 times [2022-11-03 02:23:20,591 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:23:20,591 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [314637829] [2022-11-03 02:23:20,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:23:20,592 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:23:20,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:23:20,802 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2022-11-03 02:23:20,802 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:23:20,803 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [314637829] [2022-11-03 02:23:20,803 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [314637829] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:23:20,803 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:23:20,803 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:23:20,803 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [535712105] [2022-11-03 02:23:20,804 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:23:20,804 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:23:20,804 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:23:20,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:23:20,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:23:20,805 INFO L87 Difference]: Start difference. First operand 1338 states and 1831 transitions. Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-03 02:23:23,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:23:23,143 INFO L93 Difference]: Finished difference Result 3433 states and 4683 transitions. [2022-11-03 02:23:23,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:23:23,143 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 85 [2022-11-03 02:23:23,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:23:23,155 INFO L225 Difference]: With dead ends: 3433 [2022-11-03 02:23:23,155 INFO L226 Difference]: Without dead ends: 2113 [2022-11-03 02:23:23,161 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:23:23,162 INFO L413 NwaCegarLoop]: 2241 mSDtfsCounter, 1678 mSDsluCounter, 1190 mSDsCounter, 0 mSdLazyCounter, 417 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1678 SdHoareTripleChecker+Valid, 3282 SdHoareTripleChecker+Invalid, 418 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 417 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-11-03 02:23:23,162 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1678 Valid, 3282 Invalid, 418 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 417 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-11-03 02:23:23,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2113 states. [2022-11-03 02:23:23,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2113 to 2099. [2022-11-03 02:23:23,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2099 states, 1178 states have (on average 1.234295415959253) internal successors, (1454), 1260 states have internal predecessors, (1454), 709 states have call successors, (709), 189 states have call predecessors, (709), 188 states have return successors, (707), 704 states have call predecessors, (707), 707 states have call successors, (707) [2022-11-03 02:23:23,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2099 states to 2099 states and 2870 transitions. [2022-11-03 02:23:23,349 INFO L78 Accepts]: Start accepts. Automaton has 2099 states and 2870 transitions. Word has length 85 [2022-11-03 02:23:23,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:23:23,354 INFO L495 AbstractCegarLoop]: Abstraction has 2099 states and 2870 transitions. [2022-11-03 02:23:23,354 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-03 02:23:23,354 INFO L276 IsEmpty]: Start isEmpty. Operand 2099 states and 2870 transitions. [2022-11-03 02:23:23,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-11-03 02:23:23,355 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:23:23,355 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 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] [2022-11-03 02:23:23,356 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-03 02:23:23,356 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_linux_fs_char_dev_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2022-11-03 02:23:23,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:23:23,356 INFO L85 PathProgramCache]: Analyzing trace with hash -412863253, now seen corresponding path program 1 times [2022-11-03 02:23:23,357 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:23:23,357 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [814340361] [2022-11-03 02:23:23,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:23:23,357 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:23:23,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:23:23,662 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-03 02:23:23,662 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:23:23,662 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [814340361] [2022-11-03 02:23:23,663 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [814340361] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:23:23,663 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:23:23,663 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 02:23:23,663 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [641136218] [2022-11-03 02:23:23,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:23:23,664 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 02:23:23,664 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:23:23,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 02:23:23,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 02:23:23,665 INFO L87 Difference]: Start difference. First operand 2099 states and 2870 transitions. Second operand has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 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) [2022-11-03 02:23:25,957 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:23:28,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:23:28,437 INFO L93 Difference]: Finished difference Result 3199 states and 4339 transitions. [2022-11-03 02:23:28,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-03 02:23:28,437 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 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 72 [2022-11-03 02:23:28,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:23:28,454 INFO L225 Difference]: With dead ends: 3199 [2022-11-03 02:23:28,455 INFO L226 Difference]: Without dead ends: 3197 [2022-11-03 02:23:28,457 INFO L412 NwaCegarLoop]: 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 [2022-11-03 02:23:28,458 INFO L413 NwaCegarLoop]: 2392 mSDtfsCounter, 1470 mSDsluCounter, 4467 mSDsCounter, 0 mSdLazyCounter, 770 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1472 SdHoareTripleChecker+Valid, 6370 SdHoareTripleChecker+Invalid, 772 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 770 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2022-11-03 02:23:28,458 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1472 Valid, 6370 Invalid, 772 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 770 Invalid, 1 Unknown, 0 Unchecked, 4.5s Time] [2022-11-03 02:23:28,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3197 states. [2022-11-03 02:23:28,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3197 to 3069. [2022-11-03 02:23:28,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3069 states, 1724 states have (on average 1.2320185614849188) internal successors, (2124), 1836 states have internal predecessors, (2124), 1041 states have call successors, (1041), 281 states have call predecessors, (1041), 280 states have return successors, (1039), 1032 states have call predecessors, (1039), 1039 states have call successors, (1039) [2022-11-03 02:23:28,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3069 states to 3069 states and 4204 transitions. [2022-11-03 02:23:28,704 INFO L78 Accepts]: Start accepts. Automaton has 3069 states and 4204 transitions. Word has length 72 [2022-11-03 02:23:28,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:23:28,705 INFO L495 AbstractCegarLoop]: Abstraction has 3069 states and 4204 transitions. [2022-11-03 02:23:28,705 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 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) [2022-11-03 02:23:28,705 INFO L276 IsEmpty]: Start isEmpty. Operand 3069 states and 4204 transitions. [2022-11-03 02:23:28,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-11-03 02:23:28,713 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:23:28,713 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 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] [2022-11-03 02:23:28,713 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-03 02:23:28,714 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2022-11-03 02:23:28,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:23:28,715 INFO L85 PathProgramCache]: Analyzing trace with hash 678979009, now seen corresponding path program 1 times [2022-11-03 02:23:28,715 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:23:28,715 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1472894192] [2022-11-03 02:23:28,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:23:28,715 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:23:28,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:23:29,005 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2022-11-03 02:23:29,006 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:23:29,006 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1472894192] [2022-11-03 02:23:29,006 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1472894192] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 02:23:29,006 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1818581149] [2022-11-03 02:23:29,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:23:29,007 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:23:29,007 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc0b656a-bd04-48e5-beba-017d377d5494/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:23:29,017 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc0b656a-bd04-48e5-beba-017d377d5494/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:23:29,047 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc0b656a-bd04-48e5-beba-017d377d5494/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-03 02:23:29,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:23:29,994 INFO L263 TraceCheckSpWp]: Trace formula consists of 1892 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-03 02:23:30,004 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:23:30,067 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2022-11-03 02:23:30,067 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:23:30,067 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1818581149] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:23:30,067 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-03 02:23:30,068 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2022-11-03 02:23:30,068 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [265614986] [2022-11-03 02:23:30,068 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:23:30,069 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:23:30,069 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:23:30,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:23:30,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-11-03 02:23:30,070 INFO L87 Difference]: Start difference. First operand 3069 states and 4204 transitions. Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-03 02:23:31,296 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:23:32,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:23:32,218 INFO L93 Difference]: Finished difference Result 6114 states and 8373 transitions. [2022-11-03 02:23:32,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:23:32,218 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 90 [2022-11-03 02:23:32,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:23:32,237 INFO L225 Difference]: With dead ends: 6114 [2022-11-03 02:23:32,237 INFO L226 Difference]: Without dead ends: 3063 [2022-11-03 02:23:32,250 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-11-03 02:23:32,250 INFO L413 NwaCegarLoop]: 1608 mSDtfsCounter, 1815 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 218 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1815 SdHoareTripleChecker+Valid, 1608 SdHoareTripleChecker+Invalid, 219 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 218 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-11-03 02:23:32,251 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1815 Valid, 1608 Invalid, 219 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 218 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-11-03 02:23:32,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3063 states. [2022-11-03 02:23:32,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3063 to 3063. [2022-11-03 02:23:32,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3063 states, 1719 states have (on average 1.2303664921465969) internal successors, (2115), 1830 states have internal predecessors, (2115), 1041 states have call successors, (1041), 281 states have call predecessors, (1041), 280 states have return successors, (1039), 1032 states have call predecessors, (1039), 1039 states have call successors, (1039) [2022-11-03 02:23:32,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3063 states to 3063 states and 4195 transitions. [2022-11-03 02:23:32,587 INFO L78 Accepts]: Start accepts. Automaton has 3063 states and 4195 transitions. Word has length 90 [2022-11-03 02:23:32,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:23:32,588 INFO L495 AbstractCegarLoop]: Abstraction has 3063 states and 4195 transitions. [2022-11-03 02:23:32,589 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-03 02:23:32,590 INFO L276 IsEmpty]: Start isEmpty. Operand 3063 states and 4195 transitions. [2022-11-03 02:23:32,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-11-03 02:23:32,593 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:23:32,593 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:23:32,640 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc0b656a-bd04-48e5-beba-017d377d5494/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-03 02:23:32,817 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc0b656a-bd04-48e5-beba-017d377d5494/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:23:32,817 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2022-11-03 02:23:32,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:23:32,817 INFO L85 PathProgramCache]: Analyzing trace with hash 355778270, now seen corresponding path program 1 times [2022-11-03 02:23:32,818 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:23:32,818 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [499715049] [2022-11-03 02:23:32,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:23:32,818 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:23:32,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:23:33,114 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-03 02:23:33,114 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:23:33,114 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [499715049] [2022-11-03 02:23:33,114 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [499715049] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:23:33,114 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:23:33,115 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 02:23:33,115 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1599766008] [2022-11-03 02:23:33,115 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:23:33,115 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 02:23:33,115 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:23:33,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 02:23:33,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 02:23:33,116 INFO L87 Difference]: Start difference. First operand 3063 states and 4195 transitions. Second operand has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 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) [2022-11-03 02:23:34,911 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:23:36,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:23:36,055 INFO L93 Difference]: Finished difference Result 3063 states and 4195 transitions. [2022-11-03 02:23:36,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 02:23:36,056 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 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 77 [2022-11-03 02:23:36,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:23:36,073 INFO L225 Difference]: With dead ends: 3063 [2022-11-03 02:23:36,074 INFO L226 Difference]: Without dead ends: 3061 [2022-11-03 02:23:36,075 INFO L412 NwaCegarLoop]: 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 [2022-11-03 02:23:36,076 INFO L413 NwaCegarLoop]: 1605 mSDtfsCounter, 1798 mSDsluCounter, 1821 mSDsCounter, 0 mSdLazyCounter, 435 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1800 SdHoareTripleChecker+Valid, 3210 SdHoareTripleChecker+Invalid, 435 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 435 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-11-03 02:23:36,077 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1800 Valid, 3210 Invalid, 435 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 435 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-11-03 02:23:36,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3061 states. [2022-11-03 02:23:36,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3061 to 3061. [2022-11-03 02:23:36,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3061 states, 1718 states have (on average 1.229918509895227) internal successors, (2113), 1828 states have internal predecessors, (2113), 1041 states have call successors, (1041), 281 states have call predecessors, (1041), 280 states have return successors, (1039), 1032 states have call predecessors, (1039), 1039 states have call successors, (1039) [2022-11-03 02:23:36,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3061 states to 3061 states and 4193 transitions. [2022-11-03 02:23:36,429 INFO L78 Accepts]: Start accepts. Automaton has 3061 states and 4193 transitions. Word has length 77 [2022-11-03 02:23:36,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:23:36,429 INFO L495 AbstractCegarLoop]: Abstraction has 3061 states and 4193 transitions. [2022-11-03 02:23:36,429 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 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) [2022-11-03 02:23:36,430 INFO L276 IsEmpty]: Start isEmpty. Operand 3061 states and 4193 transitions. [2022-11-03 02:23:36,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-11-03 02:23:36,432 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:23:36,433 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 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] [2022-11-03 02:23:36,433 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-03 02:23:36,433 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_linux_kernel_locking_rwlock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2022-11-03 02:23:36,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:23:36,434 INFO L85 PathProgramCache]: Analyzing trace with hash -1983682872, now seen corresponding path program 1 times [2022-11-03 02:23:36,434 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:23:36,434 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2029979518] [2022-11-03 02:23:36,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:23:36,434 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:23:36,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:23:36,710 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-03 02:23:36,711 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:23:36,711 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2029979518] [2022-11-03 02:23:36,711 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2029979518] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:23:36,711 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:23:36,711 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 02:23:36,712 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1878351818] [2022-11-03 02:23:36,712 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:23:36,712 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 02:23:36,712 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:23:36,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 02:23:36,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 02:23:36,713 INFO L87 Difference]: Start difference. First operand 3061 states and 4193 transitions. Second operand has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 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) [2022-11-03 02:23:39,212 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:23:40,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:23:40,171 INFO L93 Difference]: Finished difference Result 3061 states and 4193 transitions. [2022-11-03 02:23:40,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 02:23:40,172 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 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 82 [2022-11-03 02:23:40,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:23:40,187 INFO L225 Difference]: With dead ends: 3061 [2022-11-03 02:23:40,187 INFO L226 Difference]: Without dead ends: 3059 [2022-11-03 02:23:40,189 INFO L412 NwaCegarLoop]: 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 [2022-11-03 02:23:40,190 INFO L413 NwaCegarLoop]: 1603 mSDtfsCounter, 1799 mSDsluCounter, 1815 mSDsCounter, 0 mSdLazyCounter, 434 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1801 SdHoareTripleChecker+Valid, 3202 SdHoareTripleChecker+Invalid, 435 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 434 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-11-03 02:23:40,190 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1801 Valid, 3202 Invalid, 435 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 434 Invalid, 1 Unknown, 0 Unchecked, 3.2s Time] [2022-11-03 02:23:40,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3059 states. [2022-11-03 02:23:40,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3059 to 3059. [2022-11-03 02:23:40,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3059 states, 1717 states have (on average 1.229470005824112) internal successors, (2111), 1826 states have internal predecessors, (2111), 1041 states have call successors, (1041), 281 states have call predecessors, (1041), 280 states have return successors, (1039), 1032 states have call predecessors, (1039), 1039 states have call successors, (1039) [2022-11-03 02:23:40,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3059 states to 3059 states and 4191 transitions. [2022-11-03 02:23:40,479 INFO L78 Accepts]: Start accepts. Automaton has 3059 states and 4191 transitions. Word has length 82 [2022-11-03 02:23:40,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:23:40,480 INFO L495 AbstractCegarLoop]: Abstraction has 3059 states and 4191 transitions. [2022-11-03 02:23:40,480 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 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) [2022-11-03 02:23:40,480 INFO L276 IsEmpty]: Start isEmpty. Operand 3059 states and 4191 transitions. [2022-11-03 02:23:40,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-11-03 02:23:40,481 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:23:40,482 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 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] [2022-11-03 02:23:40,482 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-03 02:23:40,482 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_linux_kernel_locking_rwlock_check_final_stateErr1ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2022-11-03 02:23:40,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:23:40,483 INFO L85 PathProgramCache]: Analyzing trace with hash 646400107, now seen corresponding path program 1 times [2022-11-03 02:23:40,483 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:23:40,483 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [683041395] [2022-11-03 02:23:40,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:23:40,484 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:23:40,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:23:40,755 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-03 02:23:40,755 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:23:40,755 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [683041395] [2022-11-03 02:23:40,755 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [683041395] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:23:40,755 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:23:40,756 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 02:23:40,756 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [85889614] [2022-11-03 02:23:40,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:23:40,756 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 02:23:40,757 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:23:40,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 02:23:40,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 02:23:40,758 INFO L87 Difference]: Start difference. First operand 3059 states and 4191 transitions. Second operand has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 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) [2022-11-03 02:23:43,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:23:43,350 INFO L93 Difference]: Finished difference Result 3059 states and 4191 transitions. [2022-11-03 02:23:43,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 02:23:43,351 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 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 84 [2022-11-03 02:23:43,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:23:43,367 INFO L225 Difference]: With dead ends: 3059 [2022-11-03 02:23:43,368 INFO L226 Difference]: Without dead ends: 3057 [2022-11-03 02:23:43,370 INFO L412 NwaCegarLoop]: 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 [2022-11-03 02:23:43,370 INFO L413 NwaCegarLoop]: 1601 mSDtfsCounter, 1791 mSDsluCounter, 1817 mSDsCounter, 0 mSdLazyCounter, 435 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1793 SdHoareTripleChecker+Valid, 3202 SdHoareTripleChecker+Invalid, 435 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 435 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-11-03 02:23:43,371 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1793 Valid, 3202 Invalid, 435 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 435 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-11-03 02:23:43,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3057 states. [2022-11-03 02:23:43,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3057 to 3057. [2022-11-03 02:23:43,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3057 states, 1716 states have (on average 1.229020979020979) internal successors, (2109), 1824 states have internal predecessors, (2109), 1041 states have call successors, (1041), 281 states have call predecessors, (1041), 280 states have return successors, (1039), 1032 states have call predecessors, (1039), 1039 states have call successors, (1039) [2022-11-03 02:23:43,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3057 states to 3057 states and 4189 transitions. [2022-11-03 02:23:43,675 INFO L78 Accepts]: Start accepts. Automaton has 3057 states and 4189 transitions. Word has length 84 [2022-11-03 02:23:43,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:23:43,676 INFO L495 AbstractCegarLoop]: Abstraction has 3057 states and 4189 transitions. [2022-11-03 02:23:43,676 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 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) [2022-11-03 02:23:43,676 INFO L276 IsEmpty]: Start isEmpty. Operand 3057 states and 4189 transitions. [2022-11-03 02:23:43,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2022-11-03 02:23:43,678 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:23:43,678 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:23:43,678 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-03 02:23:43,678 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_linux_kernel_module_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2022-11-03 02:23:43,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:23:43,679 INFO L85 PathProgramCache]: Analyzing trace with hash 103075980, now seen corresponding path program 1 times [2022-11-03 02:23:43,679 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:23:43,679 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1071205725] [2022-11-03 02:23:43,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:23:43,680 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:23:43,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:23:43,968 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-03 02:23:43,968 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:23:43,969 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1071205725] [2022-11-03 02:23:43,969 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1071205725] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:23:43,969 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:23:43,969 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 02:23:43,969 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [689427869] [2022-11-03 02:23:43,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:23:43,970 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 02:23:43,970 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:23:43,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 02:23:43,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 02:23:43,971 INFO L87 Difference]: Start difference. First operand 3057 states and 4189 transitions. Second operand has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 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) [2022-11-03 02:23:46,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:23:46,560 INFO L93 Difference]: Finished difference Result 3057 states and 4189 transitions. [2022-11-03 02:23:46,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 02:23:46,561 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 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 89 [2022-11-03 02:23:46,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:23:46,576 INFO L225 Difference]: With dead ends: 3057 [2022-11-03 02:23:46,576 INFO L226 Difference]: Without dead ends: 3055 [2022-11-03 02:23:46,579 INFO L412 NwaCegarLoop]: 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 [2022-11-03 02:23:46,579 INFO L413 NwaCegarLoop]: 1599 mSDtfsCounter, 1790 mSDsluCounter, 1815 mSDsCounter, 0 mSdLazyCounter, 435 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1792 SdHoareTripleChecker+Valid, 3198 SdHoareTripleChecker+Invalid, 435 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 435 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-11-03 02:23:46,580 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1792 Valid, 3198 Invalid, 435 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 435 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-11-03 02:23:46,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3055 states. [2022-11-03 02:23:46,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3055 to 3055. [2022-11-03 02:23:46,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3055 states, 1715 states have (on average 1.2285714285714286) internal successors, (2107), 1822 states have internal predecessors, (2107), 1041 states have call successors, (1041), 281 states have call predecessors, (1041), 280 states have return successors, (1039), 1032 states have call predecessors, (1039), 1039 states have call successors, (1039) [2022-11-03 02:23:46,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3055 states to 3055 states and 4187 transitions. [2022-11-03 02:23:46,940 INFO L78 Accepts]: Start accepts. Automaton has 3055 states and 4187 transitions. Word has length 89 [2022-11-03 02:23:46,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:23:46,941 INFO L495 AbstractCegarLoop]: Abstraction has 3055 states and 4187 transitions. [2022-11-03 02:23:46,941 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 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) [2022-11-03 02:23:46,941 INFO L276 IsEmpty]: Start isEmpty. Operand 3055 states and 4187 transitions. [2022-11-03 02:23:46,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-11-03 02:23:46,943 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:23:46,943 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 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] [2022-11-03 02:23:46,943 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-03 02:23:46,943 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_linux_kernel_rcu_update_lock_bh_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2022-11-03 02:23:46,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:23:46,944 INFO L85 PathProgramCache]: Analyzing trace with hash 1056791083, now seen corresponding path program 1 times [2022-11-03 02:23:46,944 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:23:46,944 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [68953781] [2022-11-03 02:23:46,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:23:46,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:23:46,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:23:47,204 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-03 02:23:47,204 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:23:47,204 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [68953781] [2022-11-03 02:23:47,204 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [68953781] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:23:47,205 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:23:47,205 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 02:23:47,205 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1848358815] [2022-11-03 02:23:47,205 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:23:47,206 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 02:23:47,206 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:23:47,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 02:23:47,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 02:23:47,207 INFO L87 Difference]: Start difference. First operand 3055 states and 4187 transitions. Second operand has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 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) [2022-11-03 02:23:49,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:23:49,797 INFO L93 Difference]: Finished difference Result 3055 states and 4187 transitions. [2022-11-03 02:23:49,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 02:23:49,798 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 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 94 [2022-11-03 02:23:49,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:23:49,812 INFO L225 Difference]: With dead ends: 3055 [2022-11-03 02:23:49,812 INFO L226 Difference]: Without dead ends: 3053 [2022-11-03 02:23:49,813 INFO L412 NwaCegarLoop]: 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 [2022-11-03 02:23:49,814 INFO L413 NwaCegarLoop]: 1597 mSDtfsCounter, 1787 mSDsluCounter, 1813 mSDsCounter, 0 mSdLazyCounter, 435 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1789 SdHoareTripleChecker+Valid, 3194 SdHoareTripleChecker+Invalid, 435 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 435 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-11-03 02:23:49,815 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1789 Valid, 3194 Invalid, 435 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 435 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-11-03 02:23:49,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3053 states. [2022-11-03 02:23:50,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3053 to 3053. [2022-11-03 02:23:50,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3053 states, 1714 states have (on average 1.2281213535589266) internal successors, (2105), 1820 states have internal predecessors, (2105), 1041 states have call successors, (1041), 281 states have call predecessors, (1041), 280 states have return successors, (1039), 1032 states have call predecessors, (1039), 1039 states have call successors, (1039) [2022-11-03 02:23:50,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3053 states to 3053 states and 4185 transitions. [2022-11-03 02:23:50,065 INFO L78 Accepts]: Start accepts. Automaton has 3053 states and 4185 transitions. Word has length 94 [2022-11-03 02:23:50,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:23:50,066 INFO L495 AbstractCegarLoop]: Abstraction has 3053 states and 4185 transitions. [2022-11-03 02:23:50,066 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 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) [2022-11-03 02:23:50,066 INFO L276 IsEmpty]: Start isEmpty. Operand 3053 states and 4185 transitions. [2022-11-03 02:23:50,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-11-03 02:23:50,068 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:23:50,068 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 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] [2022-11-03 02:23:50,069 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-03 02:23:50,069 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_linux_kernel_rcu_update_lock_sched_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2022-11-03 02:23:50,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:23:50,069 INFO L85 PathProgramCache]: Analyzing trace with hash -1508277606, now seen corresponding path program 1 times [2022-11-03 02:23:50,070 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:23:50,070 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1367968838] [2022-11-03 02:23:50,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:23:50,070 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:23:50,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:23:50,328 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-03 02:23:50,328 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:23:50,328 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1367968838] [2022-11-03 02:23:50,328 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1367968838] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:23:50,329 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:23:50,329 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 02:23:50,329 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [64102604] [2022-11-03 02:23:50,329 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:23:50,330 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 02:23:50,331 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:23:50,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 02:23:50,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 02:23:50,331 INFO L87 Difference]: Start difference. First operand 3053 states and 4185 transitions. Second operand has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 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) [2022-11-03 02:23:53,107 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.96s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:23:54,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:23:54,309 INFO L93 Difference]: Finished difference Result 3053 states and 4185 transitions. [2022-11-03 02:23:54,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 02:23:54,309 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 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 99 [2022-11-03 02:23:54,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:23:54,321 INFO L225 Difference]: With dead ends: 3053 [2022-11-03 02:23:54,321 INFO L226 Difference]: Without dead ends: 3051 [2022-11-03 02:23:54,323 INFO L412 NwaCegarLoop]: 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 [2022-11-03 02:23:54,324 INFO L413 NwaCegarLoop]: 1595 mSDtfsCounter, 1784 mSDsluCounter, 1811 mSDsCounter, 0 mSdLazyCounter, 435 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1786 SdHoareTripleChecker+Valid, 3190 SdHoareTripleChecker+Invalid, 435 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 435 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2022-11-03 02:23:54,324 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1786 Valid, 3190 Invalid, 435 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 435 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2022-11-03 02:23:54,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3051 states. [2022-11-03 02:23:54,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3051 to 3051. [2022-11-03 02:23:54,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3051 states, 1713 states have (on average 1.2276707530647986) internal successors, (2103), 1818 states have internal predecessors, (2103), 1041 states have call successors, (1041), 281 states have call predecessors, (1041), 280 states have return successors, (1039), 1032 states have call predecessors, (1039), 1039 states have call successors, (1039) [2022-11-03 02:23:54,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3051 states to 3051 states and 4183 transitions. [2022-11-03 02:23:54,612 INFO L78 Accepts]: Start accepts. Automaton has 3051 states and 4183 transitions. Word has length 99 [2022-11-03 02:23:54,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:23:54,615 INFO L495 AbstractCegarLoop]: Abstraction has 3051 states and 4183 transitions. [2022-11-03 02:23:54,615 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 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) [2022-11-03 02:23:54,615 INFO L276 IsEmpty]: Start isEmpty. Operand 3051 states and 4183 transitions. [2022-11-03 02:23:54,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2022-11-03 02:23:54,617 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:23:54,617 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:23:54,618 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-03 02:23:54,618 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2022-11-03 02:23:54,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:23:54,619 INFO L85 PathProgramCache]: Analyzing trace with hash 1028092231, now seen corresponding path program 1 times [2022-11-03 02:23:54,619 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:23:54,619 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1759822575] [2022-11-03 02:23:54,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:23:54,620 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:23:54,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:23:54,906 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-03 02:23:54,907 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:23:54,907 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1759822575] [2022-11-03 02:23:54,907 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1759822575] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:23:54,907 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:23:54,907 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 02:23:54,910 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [510222840] [2022-11-03 02:23:54,910 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:23:54,910 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 02:23:54,910 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:23:54,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 02:23:54,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 02:23:54,911 INFO L87 Difference]: Start difference. First operand 3051 states and 4183 transitions. Second operand has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 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) [2022-11-03 02:23:57,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:23:57,264 INFO L93 Difference]: Finished difference Result 3051 states and 4183 transitions. [2022-11-03 02:23:57,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 02:23:57,264 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 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 104 [2022-11-03 02:23:57,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:23:57,274 INFO L225 Difference]: With dead ends: 3051 [2022-11-03 02:23:57,274 INFO L226 Difference]: Without dead ends: 3049 [2022-11-03 02:23:57,276 INFO L412 NwaCegarLoop]: 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 [2022-11-03 02:23:57,276 INFO L413 NwaCegarLoop]: 1593 mSDtfsCounter, 1781 mSDsluCounter, 1809 mSDsCounter, 0 mSdLazyCounter, 435 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1783 SdHoareTripleChecker+Valid, 3186 SdHoareTripleChecker+Invalid, 435 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 435 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-11-03 02:23:57,277 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1783 Valid, 3186 Invalid, 435 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 435 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-11-03 02:23:57,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3049 states. [2022-11-03 02:23:57,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3049 to 3049. [2022-11-03 02:23:57,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3049 states, 1712 states have (on average 1.2272196261682242) internal successors, (2101), 1816 states have internal predecessors, (2101), 1041 states have call successors, (1041), 281 states have call predecessors, (1041), 280 states have return successors, (1039), 1032 states have call predecessors, (1039), 1039 states have call successors, (1039) [2022-11-03 02:23:57,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3049 states to 3049 states and 4181 transitions. [2022-11-03 02:23:57,609 INFO L78 Accepts]: Start accepts. Automaton has 3049 states and 4181 transitions. Word has length 104 [2022-11-03 02:23:57,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:23:57,609 INFO L495 AbstractCegarLoop]: Abstraction has 3049 states and 4181 transitions. [2022-11-03 02:23:57,610 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 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) [2022-11-03 02:23:57,610 INFO L276 IsEmpty]: Start isEmpty. Operand 3049 states and 4181 transitions. [2022-11-03 02:23:57,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-11-03 02:23:57,612 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:23:57,612 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 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] [2022-11-03 02:23:57,612 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-03 02:23:57,612 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_linux_kernel_rcu_srcu_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2022-11-03 02:23:57,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:23:57,613 INFO L85 PathProgramCache]: Analyzing trace with hash -1292537909, now seen corresponding path program 1 times [2022-11-03 02:23:57,613 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:23:57,613 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [828034366] [2022-11-03 02:23:57,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:23:57,614 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:23:57,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:23:57,933 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-03 02:23:57,933 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:23:57,934 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [828034366] [2022-11-03 02:23:57,935 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [828034366] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:23:57,935 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:23:57,935 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 02:23:57,935 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1253485310] [2022-11-03 02:23:57,935 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:23:57,936 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 02:23:57,936 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:23:57,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 02:23:57,937 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 02:23:57,937 INFO L87 Difference]: Start difference. First operand 3049 states and 4181 transitions. Second operand has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 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) [2022-11-03 02:24:00,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:24:00,233 INFO L93 Difference]: Finished difference Result 3049 states and 4181 transitions. [2022-11-03 02:24:00,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 02:24:00,234 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 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 109 [2022-11-03 02:24:00,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:24:00,244 INFO L225 Difference]: With dead ends: 3049 [2022-11-03 02:24:00,244 INFO L226 Difference]: Without dead ends: 3047 [2022-11-03 02:24:00,247 INFO L412 NwaCegarLoop]: 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 [2022-11-03 02:24:00,247 INFO L413 NwaCegarLoop]: 1591 mSDtfsCounter, 1778 mSDsluCounter, 1807 mSDsCounter, 0 mSdLazyCounter, 435 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1780 SdHoareTripleChecker+Valid, 3182 SdHoareTripleChecker+Invalid, 435 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 435 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-11-03 02:24:00,248 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1780 Valid, 3182 Invalid, 435 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 435 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-11-03 02:24:00,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3047 states. [2022-11-03 02:24:00,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3047 to 3047. [2022-11-03 02:24:00,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3047 states, 1711 states have (on average 1.2267679719462303) internal successors, (2099), 1814 states have internal predecessors, (2099), 1041 states have call successors, (1041), 281 states have call predecessors, (1041), 280 states have return successors, (1039), 1032 states have call predecessors, (1039), 1039 states have call successors, (1039) [2022-11-03 02:24:00,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3047 states to 3047 states and 4179 transitions. [2022-11-03 02:24:00,635 INFO L78 Accepts]: Start accepts. Automaton has 3047 states and 4179 transitions. Word has length 109 [2022-11-03 02:24:00,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:24:00,636 INFO L495 AbstractCegarLoop]: Abstraction has 3047 states and 4179 transitions. [2022-11-03 02:24:00,637 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 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) [2022-11-03 02:24:00,637 INFO L276 IsEmpty]: Start isEmpty. Operand 3047 states and 4179 transitions. [2022-11-03 02:24:00,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-11-03 02:24:00,645 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:24:00,645 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 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] [2022-11-03 02:24:00,646 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-03 02:24:00,646 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_linux_lib_idr_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2022-11-03 02:24:00,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:24:00,646 INFO L85 PathProgramCache]: Analyzing trace with hash 2074194362, now seen corresponding path program 1 times [2022-11-03 02:24:00,647 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:24:00,647 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [414870168] [2022-11-03 02:24:00,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:24:00,647 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:24:00,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:24:00,962 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-03 02:24:00,962 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:24:00,963 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [414870168] [2022-11-03 02:24:00,963 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [414870168] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:24:00,963 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:24:00,963 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 02:24:00,963 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1330455957] [2022-11-03 02:24:00,964 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:24:00,965 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 02:24:00,965 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:24:00,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 02:24:00,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 02:24:00,966 INFO L87 Difference]: Start difference. First operand 3047 states and 4179 transitions. Second operand has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 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) [2022-11-03 02:24:02,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:24:02,871 INFO L93 Difference]: Finished difference Result 3047 states and 4179 transitions. [2022-11-03 02:24:02,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 02:24:02,871 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 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 114 [2022-11-03 02:24:02,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:24:02,880 INFO L225 Difference]: With dead ends: 3047 [2022-11-03 02:24:02,880 INFO L226 Difference]: Without dead ends: 3045 [2022-11-03 02:24:02,882 INFO L412 NwaCegarLoop]: 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 [2022-11-03 02:24:02,883 INFO L413 NwaCegarLoop]: 1589 mSDtfsCounter, 1775 mSDsluCounter, 1805 mSDsCounter, 0 mSdLazyCounter, 435 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1777 SdHoareTripleChecker+Valid, 3178 SdHoareTripleChecker+Invalid, 435 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 435 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-11-03 02:24:02,884 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1777 Valid, 3178 Invalid, 435 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 435 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-11-03 02:24:02,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3045 states. [2022-11-03 02:24:03,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3045 to 3045. [2022-11-03 02:24:03,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3045 states, 1710 states have (on average 1.2263157894736842) internal successors, (2097), 1812 states have internal predecessors, (2097), 1041 states have call successors, (1041), 281 states have call predecessors, (1041), 280 states have return successors, (1039), 1032 states have call predecessors, (1039), 1039 states have call successors, (1039) [2022-11-03 02:24:03,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3045 states to 3045 states and 4177 transitions. [2022-11-03 02:24:03,311 INFO L78 Accepts]: Start accepts. Automaton has 3045 states and 4177 transitions. Word has length 114 [2022-11-03 02:24:03,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:24:03,312 INFO L495 AbstractCegarLoop]: Abstraction has 3045 states and 4177 transitions. [2022-11-03 02:24:03,312 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 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) [2022-11-03 02:24:03,312 INFO L276 IsEmpty]: Start isEmpty. Operand 3045 states and 4177 transitions. [2022-11-03 02:24:03,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2022-11-03 02:24:03,315 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:24:03,315 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 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] [2022-11-03 02:24:03,315 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-03 02:24:03,315 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_linux_mmc_sdio_func_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2022-11-03 02:24:03,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:24:03,316 INFO L85 PathProgramCache]: Analyzing trace with hash 523892579, now seen corresponding path program 1 times [2022-11-03 02:24:03,316 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:24:03,316 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1655446296] [2022-11-03 02:24:03,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:24:03,317 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:24:03,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:24:03,782 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-03 02:24:03,783 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:24:03,783 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1655446296] [2022-11-03 02:24:03,783 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1655446296] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:24:03,783 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:24:03,783 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 02:24:03,784 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [389734460] [2022-11-03 02:24:03,784 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:24:03,784 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 02:24:03,785 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:24:03,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 02:24:03,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 02:24:03,785 INFO L87 Difference]: Start difference. First operand 3045 states and 4177 transitions. Second operand has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 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) [2022-11-03 02:24:05,444 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:24:07,463 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:24:08,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:24:08,770 INFO L93 Difference]: Finished difference Result 3045 states and 4177 transitions. [2022-11-03 02:24:08,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 02:24:08,772 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 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 119 [2022-11-03 02:24:08,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:24:08,785 INFO L225 Difference]: With dead ends: 3045 [2022-11-03 02:24:08,785 INFO L226 Difference]: Without dead ends: 3043 [2022-11-03 02:24:08,787 INFO L412 NwaCegarLoop]: 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 [2022-11-03 02:24:08,788 INFO L413 NwaCegarLoop]: 1587 mSDtfsCounter, 1772 mSDsluCounter, 1803 mSDsCounter, 0 mSdLazyCounter, 434 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1774 SdHoareTripleChecker+Valid, 3174 SdHoareTripleChecker+Invalid, 435 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 434 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2022-11-03 02:24:08,788 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1774 Valid, 3174 Invalid, 435 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 434 Invalid, 1 Unknown, 0 Unchecked, 4.6s Time] [2022-11-03 02:24:08,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3043 states. [2022-11-03 02:24:09,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3043 to 3043. [2022-11-03 02:24:09,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3043 states, 1709 states have (on average 1.2258630778232884) internal successors, (2095), 1810 states have internal predecessors, (2095), 1041 states have call successors, (1041), 281 states have call predecessors, (1041), 280 states have return successors, (1039), 1032 states have call predecessors, (1039), 1039 states have call successors, (1039) [2022-11-03 02:24:09,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3043 states to 3043 states and 4175 transitions. [2022-11-03 02:24:09,238 INFO L78 Accepts]: Start accepts. Automaton has 3043 states and 4175 transitions. Word has length 119 [2022-11-03 02:24:09,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:24:09,239 INFO L495 AbstractCegarLoop]: Abstraction has 3043 states and 4175 transitions. [2022-11-03 02:24:09,239 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 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) [2022-11-03 02:24:09,240 INFO L276 IsEmpty]: Start isEmpty. Operand 3043 states and 4175 transitions. [2022-11-03 02:24:09,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2022-11-03 02:24:09,242 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:24:09,242 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 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] [2022-11-03 02:24:09,243 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-03 02:24:09,243 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_linux_net_rtnetlink_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2022-11-03 02:24:09,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:24:09,243 INFO L85 PathProgramCache]: Analyzing trace with hash 929886589, now seen corresponding path program 1 times [2022-11-03 02:24:09,244 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:24:09,244 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [141894198] [2022-11-03 02:24:09,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:24:09,244 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:24:09,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:24:09,505 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-03 02:24:09,505 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:24:09,506 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [141894198] [2022-11-03 02:24:09,506 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [141894198] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:24:09,506 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:24:09,506 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 02:24:09,506 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [415474769] [2022-11-03 02:24:09,506 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:24:09,509 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 02:24:09,509 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:24:09,509 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 02:24:09,509 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 02:24:09,510 INFO L87 Difference]: Start difference. First operand 3043 states and 4175 transitions. Second operand has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 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) [2022-11-03 02:24:11,041 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:24:12,989 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.95s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:24:14,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:24:14,270 INFO L93 Difference]: Finished difference Result 3043 states and 4175 transitions. [2022-11-03 02:24:14,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 02:24:14,271 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 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 124 [2022-11-03 02:24:14,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:24:14,283 INFO L225 Difference]: With dead ends: 3043 [2022-11-03 02:24:14,283 INFO L226 Difference]: Without dead ends: 3041 [2022-11-03 02:24:14,285 INFO L412 NwaCegarLoop]: 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 [2022-11-03 02:24:14,286 INFO L413 NwaCegarLoop]: 1585 mSDtfsCounter, 1769 mSDsluCounter, 1801 mSDsCounter, 0 mSdLazyCounter, 435 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1771 SdHoareTripleChecker+Valid, 3170 SdHoareTripleChecker+Invalid, 435 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 435 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2022-11-03 02:24:14,286 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1771 Valid, 3170 Invalid, 435 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 435 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2022-11-03 02:24:14,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3041 states. [2022-11-03 02:24:14,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3041 to 3041. [2022-11-03 02:24:14,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3041 states, 1708 states have (on average 1.2254098360655739) internal successors, (2093), 1808 states have internal predecessors, (2093), 1041 states have call successors, (1041), 281 states have call predecessors, (1041), 280 states have return successors, (1039), 1032 states have call predecessors, (1039), 1039 states have call successors, (1039) [2022-11-03 02:24:14,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3041 states to 3041 states and 4173 transitions. [2022-11-03 02:24:14,775 INFO L78 Accepts]: Start accepts. Automaton has 3041 states and 4173 transitions. Word has length 124 [2022-11-03 02:24:14,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:24:14,775 INFO L495 AbstractCegarLoop]: Abstraction has 3041 states and 4173 transitions. [2022-11-03 02:24:14,776 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 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) [2022-11-03 02:24:14,776 INFO L276 IsEmpty]: Start isEmpty. Operand 3041 states and 4173 transitions. [2022-11-03 02:24:14,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2022-11-03 02:24:14,778 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:24:14,779 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 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] [2022-11-03 02:24:14,781 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-03 02:24:14,781 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_linux_net_sock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2022-11-03 02:24:14,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:24:14,782 INFO L85 PathProgramCache]: Analyzing trace with hash 1804434472, now seen corresponding path program 1 times [2022-11-03 02:24:14,782 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:24:14,782 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1760108913] [2022-11-03 02:24:14,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:24:14,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:24:14,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:24:15,102 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-03 02:24:15,102 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:24:15,103 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1760108913] [2022-11-03 02:24:15,103 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1760108913] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:24:15,103 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:24:15,103 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 02:24:15,103 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1672330356] [2022-11-03 02:24:15,104 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:24:15,104 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 02:24:15,104 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:24:15,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 02:24:15,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 02:24:15,105 INFO L87 Difference]: Start difference. First operand 3041 states and 4173 transitions. Second operand has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 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) [2022-11-03 02:24:17,351 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:24:19,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:24:19,479 INFO L93 Difference]: Finished difference Result 3145 states and 4283 transitions. [2022-11-03 02:24:19,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-03 02:24:19,480 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 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 129 [2022-11-03 02:24:19,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:24:19,493 INFO L225 Difference]: With dead ends: 3145 [2022-11-03 02:24:19,493 INFO L226 Difference]: Without dead ends: 3143 [2022-11-03 02:24:19,495 INFO L412 NwaCegarLoop]: 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 [2022-11-03 02:24:19,496 INFO L413 NwaCegarLoop]: 2365 mSDtfsCounter, 1430 mSDsluCounter, 4413 mSDsCounter, 0 mSdLazyCounter, 770 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1432 SdHoareTripleChecker+Valid, 6289 SdHoareTripleChecker+Invalid, 772 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 770 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2022-11-03 02:24:19,496 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1432 Valid, 6289 Invalid, 772 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 770 Invalid, 1 Unknown, 0 Unchecked, 3.8s Time] [2022-11-03 02:24:19,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3143 states. [2022-11-03 02:24:19,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3143 to 3109. [2022-11-03 02:24:19,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3109 states, 1743 states have (on average 1.2208835341365463) internal successors, (2128), 1843 states have internal predecessors, (2128), 1063 states have call successors, (1063), 292 states have call predecessors, (1063), 291 states have return successors, (1061), 1054 states have call predecessors, (1061), 1061 states have call successors, (1061) [2022-11-03 02:24:19,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3109 states to 3109 states and 4252 transitions. [2022-11-03 02:24:19,986 INFO L78 Accepts]: Start accepts. Automaton has 3109 states and 4252 transitions. Word has length 129 [2022-11-03 02:24:19,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:24:19,987 INFO L495 AbstractCegarLoop]: Abstraction has 3109 states and 4252 transitions. [2022-11-03 02:24:19,987 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 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) [2022-11-03 02:24:19,987 INFO L276 IsEmpty]: Start isEmpty. Operand 3109 states and 4252 transitions. [2022-11-03 02:24:19,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2022-11-03 02:24:19,990 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:24:19,991 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:24:19,991 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-11-03 02:24:19,991 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2022-11-03 02:24:19,991 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:24:19,991 INFO L85 PathProgramCache]: Analyzing trace with hash 347799506, now seen corresponding path program 1 times [2022-11-03 02:24:19,992 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:24:19,992 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1982564816] [2022-11-03 02:24:19,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:24:19,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:24:20,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:24:20,799 INFO L134 CoverageAnalysis]: Checked inductivity of 257 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 257 trivial. 0 not checked. [2022-11-03 02:24:20,800 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:24:20,800 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1982564816] [2022-11-03 02:24:20,800 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1982564816] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:24:20,801 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:24:20,801 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 02:24:20,801 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1870338225] [2022-11-03 02:24:20,801 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:24:20,802 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 02:24:20,803 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:24:20,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 02:24:20,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:24:20,804 INFO L87 Difference]: Start difference. First operand 3109 states and 4252 transitions. Second operand has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 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) [2022-11-03 02:24:23,096 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:24:26,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:24:26,179 INFO L93 Difference]: Finished difference Result 4979 states and 6812 transitions. [2022-11-03 02:24:26,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-03 02:24:26,179 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 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 162 [2022-11-03 02:24:26,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:24:26,196 INFO L225 Difference]: With dead ends: 4979 [2022-11-03 02:24:26,196 INFO L226 Difference]: Without dead ends: 4977 [2022-11-03 02:24:26,199 INFO L412 NwaCegarLoop]: 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 [2022-11-03 02:24:26,200 INFO L413 NwaCegarLoop]: 2415 mSDtfsCounter, 1515 mSDsluCounter, 7177 mSDsCounter, 0 mSdLazyCounter, 1093 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1516 SdHoareTripleChecker+Valid, 8801 SdHoareTripleChecker+Invalid, 1096 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1093 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2022-11-03 02:24:26,200 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1516 Valid, 8801 Invalid, 1096 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1093 Invalid, 1 Unknown, 0 Unchecked, 4.6s Time] [2022-11-03 02:24:26,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4977 states. [2022-11-03 02:24:26,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4977 to 4832. [2022-11-03 02:24:26,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4832 states, 2716 states have (on average 1.2268041237113403) internal successors, (3332), 2874 states have internal predecessors, (3332), 1659 states have call successors, (1659), 450 states have call predecessors, (1659), 445 states have return successors, (1659), 1637 states have call predecessors, (1659), 1657 states have call successors, (1659) [2022-11-03 02:24:27,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4832 states to 4832 states and 6650 transitions. [2022-11-03 02:24:27,016 INFO L78 Accepts]: Start accepts. Automaton has 4832 states and 6650 transitions. Word has length 162 [2022-11-03 02:24:27,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:24:27,017 INFO L495 AbstractCegarLoop]: Abstraction has 4832 states and 6650 transitions. [2022-11-03 02:24:27,017 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 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) [2022-11-03 02:24:27,017 INFO L276 IsEmpty]: Start isEmpty. Operand 4832 states and 6650 transitions. [2022-11-03 02:24:27,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-11-03 02:24:27,020 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:24:27,020 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 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] [2022-11-03 02:24:27,020 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-11-03 02:24:27,020 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2022-11-03 02:24:27,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:24:27,021 INFO L85 PathProgramCache]: Analyzing trace with hash 1696835291, now seen corresponding path program 1 times [2022-11-03 02:24:27,021 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:24:27,021 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1873888138] [2022-11-03 02:24:27,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:24:27,022 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:24:27,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:24:27,341 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-03 02:24:27,341 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:24:27,341 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1873888138] [2022-11-03 02:24:27,341 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1873888138] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:24:27,341 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:24:27,342 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 02:24:27,343 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1001558599] [2022-11-03 02:24:27,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:24:27,344 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 02:24:27,344 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:24:27,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 02:24:27,345 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 02:24:27,345 INFO L87 Difference]: Start difference. First operand 4832 states and 6650 transitions. Second operand has 4 states, 4 states have (on average 18.5) internal successors, (74), 4 states have internal predecessors, (74), 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) [2022-11-03 02:24:29,607 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:24:31,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:24:31,854 INFO L93 Difference]: Finished difference Result 4864 states and 6678 transitions. [2022-11-03 02:24:31,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-03 02:24:31,860 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.5) internal successors, (74), 4 states have internal predecessors, (74), 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 134 [2022-11-03 02:24:31,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:24:31,879 INFO L225 Difference]: With dead ends: 4864 [2022-11-03 02:24:31,879 INFO L226 Difference]: Without dead ends: 4862 [2022-11-03 02:24:31,884 INFO L412 NwaCegarLoop]: 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 [2022-11-03 02:24:31,885 INFO L413 NwaCegarLoop]: 2365 mSDtfsCounter, 1425 mSDsluCounter, 4413 mSDsCounter, 0 mSdLazyCounter, 770 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1427 SdHoareTripleChecker+Valid, 6289 SdHoareTripleChecker+Invalid, 772 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 770 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2022-11-03 02:24:31,885 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1427 Valid, 6289 Invalid, 772 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 770 Invalid, 1 Unknown, 0 Unchecked, 3.8s Time] [2022-11-03 02:24:31,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4862 states. [2022-11-03 02:24:32,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4862 to 4838. [2022-11-03 02:24:32,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4838 states, 2719 states have (on average 1.226553880102979) internal successors, (3335), 2877 states have internal predecessors, (3335), 1661 states have call successors, (1661), 451 states have call predecessors, (1661), 446 states have return successors, (1661), 1639 states have call predecessors, (1661), 1659 states have call successors, (1661) [2022-11-03 02:24:32,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4838 states to 4838 states and 6657 transitions. [2022-11-03 02:24:32,749 INFO L78 Accepts]: Start accepts. Automaton has 4838 states and 6657 transitions. Word has length 134 [2022-11-03 02:24:32,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:24:32,750 INFO L495 AbstractCegarLoop]: Abstraction has 4838 states and 6657 transitions. [2022-11-03 02:24:32,750 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.5) internal successors, (74), 4 states have internal predecessors, (74), 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) [2022-11-03 02:24:32,750 INFO L276 IsEmpty]: Start isEmpty. Operand 4838 states and 6657 transitions. [2022-11-03 02:24:32,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2022-11-03 02:24:32,753 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:24:32,753 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 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] [2022-11-03 02:24:32,753 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-11-03 02:24:32,753 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2022-11-03 02:24:32,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:24:32,754 INFO L85 PathProgramCache]: Analyzing trace with hash 903872120, now seen corresponding path program 1 times [2022-11-03 02:24:32,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:24:32,754 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [470431487] [2022-11-03 02:24:32,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:24:32,755 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:24:32,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:24:33,073 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-03 02:24:33,074 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:24:33,074 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [470431487] [2022-11-03 02:24:33,074 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [470431487] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:24:33,074 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:24:33,074 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 02:24:33,075 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [878799612] [2022-11-03 02:24:33,075 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:24:33,075 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 02:24:33,075 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:24:33,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 02:24:33,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 02:24:33,076 INFO L87 Difference]: Start difference. First operand 4838 states and 6657 transitions. Second operand has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 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) [2022-11-03 02:24:34,677 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:24:36,699 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:24:38,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:24:38,339 INFO L93 Difference]: Finished difference Result 4838 states and 6657 transitions. [2022-11-03 02:24:38,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 02:24:38,339 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 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 139 [2022-11-03 02:24:38,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:24:38,356 INFO L225 Difference]: With dead ends: 4838 [2022-11-03 02:24:38,356 INFO L226 Difference]: Without dead ends: 4836 [2022-11-03 02:24:38,359 INFO L412 NwaCegarLoop]: 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 [2022-11-03 02:24:38,360 INFO L413 NwaCegarLoop]: 1583 mSDtfsCounter, 1764 mSDsluCounter, 1799 mSDsCounter, 0 mSdLazyCounter, 434 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1766 SdHoareTripleChecker+Valid, 3166 SdHoareTripleChecker+Invalid, 435 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 434 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2022-11-03 02:24:38,360 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1766 Valid, 3166 Invalid, 435 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 434 Invalid, 1 Unknown, 0 Unchecked, 4.6s Time] [2022-11-03 02:24:38,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4836 states. [2022-11-03 02:24:39,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4836 to 4836. [2022-11-03 02:24:39,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4836 states, 2718 states have (on average 1.2262693156732891) internal successors, (3333), 2875 states have internal predecessors, (3333), 1661 states have call successors, (1661), 451 states have call predecessors, (1661), 446 states have return successors, (1661), 1639 states have call predecessors, (1661), 1659 states have call successors, (1661) [2022-11-03 02:24:39,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4836 states to 4836 states and 6655 transitions. [2022-11-03 02:24:39,031 INFO L78 Accepts]: Start accepts. Automaton has 4836 states and 6655 transitions. Word has length 139 [2022-11-03 02:24:39,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:24:39,032 INFO L495 AbstractCegarLoop]: Abstraction has 4836 states and 6655 transitions. [2022-11-03 02:24:39,032 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 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) [2022-11-03 02:24:39,032 INFO L276 IsEmpty]: Start isEmpty. Operand 4836 states and 6655 transitions. [2022-11-03 02:24:39,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2022-11-03 02:24:39,035 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:24:39,036 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:24:39,036 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-11-03 02:24:39,036 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2022-11-03 02:24:39,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:24:39,037 INFO L85 PathProgramCache]: Analyzing trace with hash -1788676060, now seen corresponding path program 1 times [2022-11-03 02:24:39,037 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:24:39,037 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1309694321] [2022-11-03 02:24:39,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:24:39,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:24:39,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:24:39,806 INFO L134 CoverageAnalysis]: Checked inductivity of 184 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 184 trivial. 0 not checked. [2022-11-03 02:24:39,807 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:24:39,807 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1309694321] [2022-11-03 02:24:39,807 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1309694321] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:24:39,807 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:24:39,808 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 02:24:39,808 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1817219532] [2022-11-03 02:24:39,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:24:39,809 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 02:24:39,809 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:24:39,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 02:24:39,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:24:39,810 INFO L87 Difference]: Start difference. First operand 4836 states and 6655 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (32), 3 states have call predecessors, (32), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-11-03 02:24:42,813 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:24:44,048 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:24:46,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:24:46,078 INFO L93 Difference]: Finished difference Result 6042 states and 8187 transitions. [2022-11-03 02:24:46,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-03 02:24:46,078 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (32), 3 states have call predecessors, (32), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 167 [2022-11-03 02:24:46,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:24:46,091 INFO L225 Difference]: With dead ends: 6042 [2022-11-03 02:24:46,091 INFO L226 Difference]: Without dead ends: 6040 [2022-11-03 02:24:46,093 INFO L412 NwaCegarLoop]: 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 [2022-11-03 02:24:46,094 INFO L413 NwaCegarLoop]: 1735 mSDtfsCounter, 1366 mSDsluCounter, 4666 mSDsCounter, 0 mSdLazyCounter, 772 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1367 SdHoareTripleChecker+Valid, 5862 SdHoareTripleChecker+Invalid, 774 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 772 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2022-11-03 02:24:46,094 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1367 Valid, 5862 Invalid, 774 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 772 Invalid, 1 Unknown, 0 Unchecked, 5.4s Time] [2022-11-03 02:24:46,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6040 states. [2022-11-03 02:24:46,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6040 to 6036. [2022-11-03 02:24:46,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6036 states, 3341 states have (on average 1.20832086201736) internal successors, (4037), 3506 states have internal predecessors, (4037), 2071 states have call successors, (2071), 619 states have call predecessors, (2071), 614 states have return successors, (2071), 2049 states have call predecessors, (2071), 2069 states have call successors, (2071) [2022-11-03 02:24:46,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6036 states to 6036 states and 8179 transitions. [2022-11-03 02:24:46,789 INFO L78 Accepts]: Start accepts. Automaton has 6036 states and 8179 transitions. Word has length 167 [2022-11-03 02:24:46,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:24:46,789 INFO L495 AbstractCegarLoop]: Abstraction has 6036 states and 8179 transitions. [2022-11-03 02:24:46,790 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (32), 3 states have call predecessors, (32), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-11-03 02:24:46,790 INFO L276 IsEmpty]: Start isEmpty. Operand 6036 states and 8179 transitions. [2022-11-03 02:24:46,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2022-11-03 02:24:46,793 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:24:46,793 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:24:46,793 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-11-03 02:24:46,793 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2022-11-03 02:24:46,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:24:46,794 INFO L85 PathProgramCache]: Analyzing trace with hash -234143639, now seen corresponding path program 1 times [2022-11-03 02:24:46,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:24:46,794 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1968874107] [2022-11-03 02:24:46,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:24:46,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:24:46,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:24:47,365 INFO L134 CoverageAnalysis]: Checked inductivity of 257 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 257 trivial. 0 not checked. [2022-11-03 02:24:47,365 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:24:47,366 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1968874107] [2022-11-03 02:24:47,366 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1968874107] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:24:47,366 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:24:47,366 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 02:24:47,366 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1484460376] [2022-11-03 02:24:47,366 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:24:47,367 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 02:24:47,368 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:24:47,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 02:24:47,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:24:47,368 INFO L87 Difference]: Start difference. First operand 6036 states and 8179 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (29), 3 states have call predecessors, (29), 2 states have return successors, (25), 2 states have call predecessors, (25), 1 states have call successors, (25) [2022-11-03 02:24:50,220 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:24:53,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:24:53,303 INFO L93 Difference]: Finished difference Result 6036 states and 8179 transitions. [2022-11-03 02:24:53,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-03 02:24:53,304 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (29), 3 states have call predecessors, (29), 2 states have return successors, (25), 2 states have call predecessors, (25), 1 states have call successors, (25) Word has length 172 [2022-11-03 02:24:53,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:24:53,318 INFO L225 Difference]: With dead ends: 6036 [2022-11-03 02:24:53,318 INFO L226 Difference]: Without dead ends: 6034 [2022-11-03 02:24:53,321 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-03 02:24:53,321 INFO L413 NwaCegarLoop]: 1578 mSDtfsCounter, 18 mSDsluCounter, 5364 mSDsCounter, 0 mSdLazyCounter, 867 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 6298 SdHoareTripleChecker+Invalid, 868 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 867 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2022-11-03 02:24:53,321 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 6298 Invalid, 868 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 867 Invalid, 1 Unknown, 0 Unchecked, 5.2s Time] [2022-11-03 02:24:53,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6034 states. [2022-11-03 02:24:54,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6034 to 6034. [2022-11-03 02:24:54,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6034 states, 3340 states have (on average 1.2074850299401199) internal successors, (4033), 3504 states have internal predecessors, (4033), 2071 states have call successors, (2071), 619 states have call predecessors, (2071), 614 states have return successors, (2071), 2049 states have call predecessors, (2071), 2069 states have call successors, (2071) [2022-11-03 02:24:54,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6034 states to 6034 states and 8175 transitions. [2022-11-03 02:24:54,021 INFO L78 Accepts]: Start accepts. Automaton has 6034 states and 8175 transitions. Word has length 172 [2022-11-03 02:24:54,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:24:54,022 INFO L495 AbstractCegarLoop]: Abstraction has 6034 states and 8175 transitions. [2022-11-03 02:24:54,022 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (29), 3 states have call predecessors, (29), 2 states have return successors, (25), 2 states have call predecessors, (25), 1 states have call successors, (25) [2022-11-03 02:24:54,022 INFO L276 IsEmpty]: Start isEmpty. Operand 6034 states and 8175 transitions. [2022-11-03 02:24:54,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2022-11-03 02:24:54,025 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:24:54,025 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 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] [2022-11-03 02:24:54,026 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-11-03 02:24:54,026 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ldv_linux_usb_urb_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2022-11-03 02:24:54,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:24:54,026 INFO L85 PathProgramCache]: Analyzing trace with hash 1715521767, now seen corresponding path program 1 times [2022-11-03 02:24:54,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:24:54,027 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1421267957] [2022-11-03 02:24:54,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:24:54,027 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:24:54,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:24:54,319 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-03 02:24:54,320 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:24:54,320 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1421267957] [2022-11-03 02:24:54,320 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1421267957] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:24:54,320 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:24:54,320 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 02:24:54,320 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1218797749] [2022-11-03 02:24:54,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:24:54,321 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 02:24:54,321 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:24:54,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 02:24:54,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 02:24:54,323 INFO L87 Difference]: Start difference. First operand 6034 states and 8175 transitions. Second operand has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 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) [2022-11-03 02:24:56,970 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:24:58,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:24:58,700 INFO L93 Difference]: Finished difference Result 6034 states and 8175 transitions. [2022-11-03 02:24:58,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 02:24:58,700 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 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 144 [2022-11-03 02:24:58,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:24:58,717 INFO L225 Difference]: With dead ends: 6034 [2022-11-03 02:24:58,718 INFO L226 Difference]: Without dead ends: 5878 [2022-11-03 02:24:58,723 INFO L412 NwaCegarLoop]: 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 [2022-11-03 02:24:58,724 INFO L413 NwaCegarLoop]: 1578 mSDtfsCounter, 1757 mSDsluCounter, 1795 mSDsCounter, 0 mSdLazyCounter, 434 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1757 SdHoareTripleChecker+Valid, 3156 SdHoareTripleChecker+Invalid, 435 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 434 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2022-11-03 02:24:58,724 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1757 Valid, 3156 Invalid, 435 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 434 Invalid, 1 Unknown, 0 Unchecked, 3.6s Time] [2022-11-03 02:24:58,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5878 states. [2022-11-03 02:24:59,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5878 to 5878. [2022-11-03 02:24:59,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5878 states, 3260 states have (on average 1.2107361963190184) internal successors, (3947), 3420 states have internal predecessors, (3947), 2016 states have call successors, (2016), 599 states have call predecessors, (2016), 594 states have return successors, (2016), 1996 states have call predecessors, (2016), 2014 states have call successors, (2016) [2022-11-03 02:24:59,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5878 states to 5878 states and 7979 transitions. [2022-11-03 02:24:59,775 INFO L78 Accepts]: Start accepts. Automaton has 5878 states and 7979 transitions. Word has length 144 [2022-11-03 02:24:59,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:24:59,775 INFO L495 AbstractCegarLoop]: Abstraction has 5878 states and 7979 transitions. [2022-11-03 02:24:59,775 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 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) [2022-11-03 02:24:59,775 INFO L276 IsEmpty]: Start isEmpty. Operand 5878 states and 7979 transitions. [2022-11-03 02:24:59,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2022-11-03 02:24:59,779 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:24:59,779 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-11-03 02:24:59,779 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-11-03 02:24:59,779 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2022-11-03 02:24:59,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:24:59,780 INFO L85 PathProgramCache]: Analyzing trace with hash 1317892987, now seen corresponding path program 1 times [2022-11-03 02:24:59,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:24:59,780 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1013123403] [2022-11-03 02:24:59,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:24:59,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:24:59,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:25:00,281 INFO L134 CoverageAnalysis]: Checked inductivity of 188 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 188 trivial. 0 not checked. [2022-11-03 02:25:00,281 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:25:00,281 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1013123403] [2022-11-03 02:25:00,281 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1013123403] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:25:00,281 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:25:00,282 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 02:25:00,282 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [917993680] [2022-11-03 02:25:00,282 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:25:00,282 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 02:25:00,283 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:25:00,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 02:25:00,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-03 02:25:00,283 INFO L87 Difference]: Start difference. First operand 5878 states and 7979 transitions. Second operand has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 3 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) [2022-11-03 02:25:02,852 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.99s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:25:04,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:25:04,618 INFO L93 Difference]: Finished difference Result 12130 states and 16585 transitions. [2022-11-03 02:25:04,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 02:25:04,619 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 3 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) Word has length 178 [2022-11-03 02:25:04,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:25:04,640 INFO L225 Difference]: With dead ends: 12130 [2022-11-03 02:25:04,640 INFO L226 Difference]: Without dead ends: 6268 [2022-11-03 02:25:04,663 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-03 02:25:04,664 INFO L413 NwaCegarLoop]: 1583 mSDtfsCounter, 30 mSDsluCounter, 1784 mSDsCounter, 0 mSdLazyCounter, 447 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 3151 SdHoareTripleChecker+Invalid, 459 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 447 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2022-11-03 02:25:04,664 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 3151 Invalid, 459 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 447 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2022-11-03 02:25:04,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6268 states. [2022-11-03 02:25:05,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6268 to 5938. [2022-11-03 02:25:05,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5938 states, 3300 states have (on average 1.2112121212121212) internal successors, (3997), 3450 states have internal predecessors, (3997), 2036 states have call successors, (2036), 599 states have call predecessors, (2036), 594 states have return successors, (2036), 2016 states have call predecessors, (2036), 2034 states have call successors, (2036) [2022-11-03 02:25:05,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5938 states to 5938 states and 8069 transitions. [2022-11-03 02:25:05,520 INFO L78 Accepts]: Start accepts. Automaton has 5938 states and 8069 transitions. Word has length 178 [2022-11-03 02:25:05,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:25:05,521 INFO L495 AbstractCegarLoop]: Abstraction has 5938 states and 8069 transitions. [2022-11-03 02:25:05,521 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 3 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) [2022-11-03 02:25:05,521 INFO L276 IsEmpty]: Start isEmpty. Operand 5938 states and 8069 transitions. [2022-11-03 02:25:05,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2022-11-03 02:25:05,524 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:25:05,524 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:25:05,524 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-11-03 02:25:05,524 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2022-11-03 02:25:05,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:25:05,525 INFO L85 PathProgramCache]: Analyzing trace with hash -1248505395, now seen corresponding path program 1 times [2022-11-03 02:25:05,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:25:05,525 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [385453484] [2022-11-03 02:25:05,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:25:05,526 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:25:05,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:25:05,959 INFO L134 CoverageAnalysis]: Checked inductivity of 202 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 196 trivial. 0 not checked. [2022-11-03 02:25:05,959 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:25:05,959 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [385453484] [2022-11-03 02:25:05,959 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [385453484] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 02:25:05,959 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1625380035] [2022-11-03 02:25:05,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:25:05,960 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:25:05,960 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc0b656a-bd04-48e5-beba-017d377d5494/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:25:05,963 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc0b656a-bd04-48e5-beba-017d377d5494/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:25:05,993 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc0b656a-bd04-48e5-beba-017d377d5494/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-03 02:25:07,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:25:07,015 INFO L263 TraceCheckSpWp]: Trace formula consists of 2414 conjuncts, 23 conjunts are in the unsatisfiable core [2022-11-03 02:25:07,033 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:25:07,274 INFO L134 CoverageAnalysis]: Checked inductivity of 202 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 178 trivial. 0 not checked. [2022-11-03 02:25:07,274 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:25:07,274 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1625380035] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:25:07,274 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-03 02:25:07,275 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [5] total 14 [2022-11-03 02:25:07,275 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1678376333] [2022-11-03 02:25:07,275 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:25:07,277 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-03 02:25:07,277 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:25:07,278 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-03 02:25:07,278 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-11-03 02:25:07,278 INFO L87 Difference]: Start difference. First operand 5938 states and 8069 transitions. Second operand has 11 states, 8 states have (on average 8.875) internal successors, (71), 10 states have internal predecessors, (71), 6 states have call successors, (34), 2 states have call predecessors, (34), 4 states have return successors, (30), 6 states have call predecessors, (30), 6 states have call successors, (30) [2022-11-03 02:25:09,739 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:25:11,765 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:25:14,678 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:25:16,242 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:25:18,263 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:25:19,466 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:25:23,273 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:25:24,780 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:25:26,803 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:25:32,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:25:32,424 INFO L93 Difference]: Finished difference Result 12439 states and 17026 transitions. [2022-11-03 02:25:32,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-03 02:25:32,425 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 8 states have (on average 8.875) internal successors, (71), 10 states have internal predecessors, (71), 6 states have call successors, (34), 2 states have call predecessors, (34), 4 states have return successors, (30), 6 states have call predecessors, (30), 6 states have call successors, (30) Word has length 188 [2022-11-03 02:25:32,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:25:32,449 INFO L225 Difference]: With dead ends: 12439 [2022-11-03 02:25:32,450 INFO L226 Difference]: Without dead ends: 6514 [2022-11-03 02:25:32,471 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 200 GetRequests, 182 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=63, Invalid=317, Unknown=0, NotChecked=0, Total=380 [2022-11-03 02:25:32,472 INFO L413 NwaCegarLoop]: 1927 mSDtfsCounter, 570 mSDsluCounter, 18545 mSDsCounter, 0 mSdLazyCounter, 2935 mSolverCounterSat, 457 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 579 SdHoareTripleChecker+Valid, 18303 SdHoareTripleChecker+Invalid, 3395 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 457 IncrementalHoareTripleChecker+Valid, 2935 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 23.8s IncrementalHoareTripleChecker+Time [2022-11-03 02:25:32,472 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [579 Valid, 18303 Invalid, 3395 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [457 Valid, 2935 Invalid, 3 Unknown, 0 Unchecked, 23.8s Time] [2022-11-03 02:25:32,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6514 states. [2022-11-03 02:25:33,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6514 to 5997. [2022-11-03 02:25:33,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5997 states, 3338 states have (on average 1.2100059916117436) internal successors, (4039), 3483 states have internal predecessors, (4039), 2057 states have call successors, (2057), 599 states have call predecessors, (2057), 594 states have return successors, (2057), 2037 states have call predecessors, (2057), 2055 states have call successors, (2057) [2022-11-03 02:25:33,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5997 states to 5997 states and 8153 transitions. [2022-11-03 02:25:33,389 INFO L78 Accepts]: Start accepts. Automaton has 5997 states and 8153 transitions. Word has length 188 [2022-11-03 02:25:33,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:25:33,390 INFO L495 AbstractCegarLoop]: Abstraction has 5997 states and 8153 transitions. [2022-11-03 02:25:33,390 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 8 states have (on average 8.875) internal successors, (71), 10 states have internal predecessors, (71), 6 states have call successors, (34), 2 states have call predecessors, (34), 4 states have return successors, (30), 6 states have call predecessors, (30), 6 states have call successors, (30) [2022-11-03 02:25:33,390 INFO L276 IsEmpty]: Start isEmpty. Operand 5997 states and 8153 transitions. [2022-11-03 02:25:33,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2022-11-03 02:25:33,393 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:25:33,393 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 7, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:25:33,429 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc0b656a-bd04-48e5-beba-017d377d5494/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-03 02:25:33,608 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc0b656a-bd04-48e5-beba-017d377d5494/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:25:33,608 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2022-11-03 02:25:33,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:25:33,609 INFO L85 PathProgramCache]: Analyzing trace with hash 933008094, now seen corresponding path program 1 times [2022-11-03 02:25:33,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:25:33,609 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1634661206] [2022-11-03 02:25:33,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:25:33,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:25:33,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:25:34,029 INFO L134 CoverageAnalysis]: Checked inductivity of 217 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 217 trivial. 0 not checked. [2022-11-03 02:25:34,029 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:25:34,029 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1634661206] [2022-11-03 02:25:34,029 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1634661206] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:25:34,030 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:25:34,030 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 02:25:34,030 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [425144945] [2022-11-03 02:25:34,030 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:25:34,030 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 02:25:34,031 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:25:34,031 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 02:25:34,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 02:25:34,032 INFO L87 Difference]: Start difference. First operand 5997 states and 8153 transitions. Second operand has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 2 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) [2022-11-03 02:25:36,580 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.87s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:25:39,102 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:25:41,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:25:41,614 INFO L93 Difference]: Finished difference Result 11350 states and 15591 transitions. [2022-11-03 02:25:41,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-03 02:25:41,614 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 2 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) Word has length 211 [2022-11-03 02:25:41,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:25:41,634 INFO L225 Difference]: With dead ends: 11350 [2022-11-03 02:25:41,635 INFO L226 Difference]: Without dead ends: 6516 [2022-11-03 02:25:41,653 INFO L412 NwaCegarLoop]: 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 [2022-11-03 02:25:41,654 INFO L413 NwaCegarLoop]: 1857 mSDtfsCounter, 179 mSDsluCounter, 3827 mSDsCounter, 0 mSdLazyCounter, 706 mSolverCounterSat, 133 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 319 SdHoareTripleChecker+Valid, 5242 SdHoareTripleChecker+Invalid, 839 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 133 IncrementalHoareTripleChecker+Valid, 706 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2022-11-03 02:25:41,654 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [319 Valid, 5242 Invalid, 839 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [133 Valid, 706 Invalid, 0 Unknown, 0 Unchecked, 6.4s Time] [2022-11-03 02:25:41,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6516 states. [2022-11-03 02:25:42,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6516 to 5999. [2022-11-03 02:25:42,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5999 states, 3340 states have (on average 1.209880239520958) internal successors, (4041), 3485 states have internal predecessors, (4041), 2057 states have call successors, (2057), 599 states have call predecessors, (2057), 594 states have return successors, (2057), 2037 states have call predecessors, (2057), 2055 states have call successors, (2057) [2022-11-03 02:25:42,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5999 states to 5999 states and 8155 transitions. [2022-11-03 02:25:42,513 INFO L78 Accepts]: Start accepts. Automaton has 5999 states and 8155 transitions. Word has length 211 [2022-11-03 02:25:42,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:25:42,514 INFO L495 AbstractCegarLoop]: Abstraction has 5999 states and 8155 transitions. [2022-11-03 02:25:42,514 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 2 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) [2022-11-03 02:25:42,514 INFO L276 IsEmpty]: Start isEmpty. Operand 5999 states and 8155 transitions. [2022-11-03 02:25:42,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2022-11-03 02:25:42,517 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:25:42,518 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 6, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:25:42,518 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-11-03 02:25:42,518 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2022-11-03 02:25:42,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:25:42,519 INFO L85 PathProgramCache]: Analyzing trace with hash -126685987, now seen corresponding path program 1 times [2022-11-03 02:25:42,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:25:42,519 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [44175568] [2022-11-03 02:25:42,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:25:42,519 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:25:42,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:25:43,376 INFO L134 CoverageAnalysis]: Checked inductivity of 226 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 226 trivial. 0 not checked. [2022-11-03 02:25:43,376 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:25:43,376 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [44175568] [2022-11-03 02:25:43,376 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [44175568] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:25:43,377 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:25:43,377 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 02:25:43,377 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [475372959] [2022-11-03 02:25:43,377 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:25:43,378 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 02:25:43,378 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:25:43,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 02:25:43,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 02:25:43,379 INFO L87 Difference]: Start difference. First operand 5999 states and 8155 transitions. Second operand has 4 states, 4 states have (on average 23.0) internal successors, (92), 4 states have internal predecessors, (92), 2 states have call successors, (44), 2 states have call predecessors, (44), 1 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) [2022-11-03 02:25:46,126 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:25:48,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:25:48,298 INFO L93 Difference]: Finished difference Result 12336 states and 16861 transitions. [2022-11-03 02:25:48,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 02:25:48,298 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.0) internal successors, (92), 4 states have internal predecessors, (92), 2 states have call successors, (44), 2 states have call predecessors, (44), 1 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) Word has length 235 [2022-11-03 02:25:48,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:25:48,317 INFO L225 Difference]: With dead ends: 12336 [2022-11-03 02:25:48,317 INFO L226 Difference]: Without dead ends: 6353 [2022-11-03 02:25:48,334 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:25:48,335 INFO L413 NwaCegarLoop]: 1777 mSDtfsCounter, 106 mSDsluCounter, 3775 mSDsCounter, 0 mSdLazyCounter, 674 mSolverCounterSat, 114 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 168 SdHoareTripleChecker+Valid, 5119 SdHoareTripleChecker+Invalid, 788 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 114 IncrementalHoareTripleChecker+Valid, 674 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2022-11-03 02:25:48,335 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [168 Valid, 5119 Invalid, 788 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [114 Valid, 674 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2022-11-03 02:25:48,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6353 states. [2022-11-03 02:25:49,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6353 to 6005. [2022-11-03 02:25:49,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6005 states, 3346 states have (on average 1.2095038852361029) internal successors, (4047), 3491 states have internal predecessors, (4047), 2057 states have call successors, (2057), 599 states have call predecessors, (2057), 594 states have return successors, (2057), 2037 states have call predecessors, (2057), 2055 states have call successors, (2057) [2022-11-03 02:25:49,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6005 states to 6005 states and 8161 transitions. [2022-11-03 02:25:49,154 INFO L78 Accepts]: Start accepts. Automaton has 6005 states and 8161 transitions. Word has length 235 [2022-11-03 02:25:49,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:25:49,155 INFO L495 AbstractCegarLoop]: Abstraction has 6005 states and 8161 transitions. [2022-11-03 02:25:49,155 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.0) internal successors, (92), 4 states have internal predecessors, (92), 2 states have call successors, (44), 2 states have call predecessors, (44), 1 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) [2022-11-03 02:25:49,155 INFO L276 IsEmpty]: Start isEmpty. Operand 6005 states and 8161 transitions. [2022-11-03 02:25:49,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 253 [2022-11-03 02:25:49,158 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:25:49,158 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:25:49,158 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-11-03 02:25:49,159 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2022-11-03 02:25:49,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:25:49,159 INFO L85 PathProgramCache]: Analyzing trace with hash -762872475, now seen corresponding path program 1 times [2022-11-03 02:25:49,159 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:25:49,160 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1290826115] [2022-11-03 02:25:49,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:25:49,160 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:25:49,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:25:49,724 INFO L134 CoverageAnalysis]: Checked inductivity of 316 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 310 trivial. 0 not checked. [2022-11-03 02:25:49,724 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:25:49,724 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1290826115] [2022-11-03 02:25:49,725 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1290826115] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 02:25:49,725 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1272905885] [2022-11-03 02:25:49,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:25:49,725 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:25:49,725 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc0b656a-bd04-48e5-beba-017d377d5494/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:25:49,726 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc0b656a-bd04-48e5-beba-017d377d5494/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:25:49,751 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc0b656a-bd04-48e5-beba-017d377d5494/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-03 02:25:50,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:25:50,846 INFO L263 TraceCheckSpWp]: Trace formula consists of 2949 conjuncts, 42 conjunts are in the unsatisfiable core [2022-11-03 02:25:50,854 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:25:51,010 INFO L134 CoverageAnalysis]: Checked inductivity of 316 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 278 trivial. 0 not checked. [2022-11-03 02:25:51,010 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:25:51,010 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1272905885] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:25:51,011 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-03 02:25:51,011 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [5] total 14 [2022-11-03 02:25:51,011 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [116070037] [2022-11-03 02:25:51,011 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:25:51,012 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-03 02:25:51,012 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:25:51,012 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-03 02:25:51,012 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-11-03 02:25:51,013 INFO L87 Difference]: Start difference. First operand 6005 states and 8161 transitions. Second operand has 11 states, 8 states have (on average 12.125) internal successors, (97), 10 states have internal predecessors, (97), 7 states have call successors, (45), 2 states have call predecessors, (45), 4 states have return successors, (41), 7 states have call predecessors, (41), 7 states have call successors, (41) [2022-11-03 02:25:53,447 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:25:55,463 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:25:57,806 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:25:59,650 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.84s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:26:02,111 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:26:05,229 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:26:07,771 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:26:08,803 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:26:10,820 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:26:12,848 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:26:19,308 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:26:19,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:26:19,732 INFO L93 Difference]: Finished difference Result 11938 states and 16442 transitions. [2022-11-03 02:26:19,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-03 02:26:19,733 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 8 states have (on average 12.125) internal successors, (97), 10 states have internal predecessors, (97), 7 states have call successors, (45), 2 states have call predecessors, (45), 4 states have return successors, (41), 7 states have call predecessors, (41), 7 states have call successors, (41) Word has length 252 [2022-11-03 02:26:19,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:26:19,753 INFO L225 Difference]: With dead ends: 11938 [2022-11-03 02:26:19,753 INFO L226 Difference]: Without dead ends: 5946 [2022-11-03 02:26:19,769 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 265 GetRequests, 246 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=70, Invalid=350, Unknown=0, NotChecked=0, Total=420 [2022-11-03 02:26:19,769 INFO L413 NwaCegarLoop]: 1960 mSDtfsCounter, 594 mSDsluCounter, 18767 mSDsCounter, 0 mSdLazyCounter, 2949 mSolverCounterSat, 468 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 26.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 715 SdHoareTripleChecker+Valid, 18587 SdHoareTripleChecker+Invalid, 3424 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 468 IncrementalHoareTripleChecker+Valid, 2949 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 27.4s IncrementalHoareTripleChecker+Time [2022-11-03 02:26:19,770 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [715 Valid, 18587 Invalid, 3424 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [468 Valid, 2949 Invalid, 7 Unknown, 0 Unchecked, 27.4s Time] [2022-11-03 02:26:19,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5946 states. [2022-11-03 02:26:20,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5946 to 4949. [2022-11-03 02:26:20,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4949 states, 2756 states have (on average 1.20899854862119) internal successors, (3332), 2881 states have internal predecessors, (3332), 1693 states have call successors, (1693), 497 states have call predecessors, (1693), 492 states have return successors, (1693), 1675 states have call predecessors, (1693), 1691 states have call successors, (1693) [2022-11-03 02:26:20,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4949 states to 4949 states and 6718 transitions. [2022-11-03 02:26:20,646 INFO L78 Accepts]: Start accepts. Automaton has 4949 states and 6718 transitions. Word has length 252 [2022-11-03 02:26:20,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:26:20,647 INFO L495 AbstractCegarLoop]: Abstraction has 4949 states and 6718 transitions. [2022-11-03 02:26:20,647 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 8 states have (on average 12.125) internal successors, (97), 10 states have internal predecessors, (97), 7 states have call successors, (45), 2 states have call predecessors, (45), 4 states have return successors, (41), 7 states have call predecessors, (41), 7 states have call successors, (41) [2022-11-03 02:26:20,647 INFO L276 IsEmpty]: Start isEmpty. Operand 4949 states and 6718 transitions. [2022-11-03 02:26:20,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 263 [2022-11-03 02:26:20,650 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:26:20,650 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 7, 6, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:26:20,697 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc0b656a-bd04-48e5-beba-017d377d5494/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-03 02:26:20,869 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc0b656a-bd04-48e5-beba-017d377d5494/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable30 [2022-11-03 02:26:20,869 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2022-11-03 02:26:20,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:26:20,870 INFO L85 PathProgramCache]: Analyzing trace with hash -567984010, now seen corresponding path program 1 times [2022-11-03 02:26:20,870 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:26:20,870 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [650766039] [2022-11-03 02:26:20,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:26:20,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:26:21,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:26:21,370 INFO L134 CoverageAnalysis]: Checked inductivity of 339 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 339 trivial. 0 not checked. [2022-11-03 02:26:21,370 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:26:21,371 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [650766039] [2022-11-03 02:26:21,371 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [650766039] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:26:21,372 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:26:21,372 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 02:26:21,372 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1859483139] [2022-11-03 02:26:21,372 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:26:21,373 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 02:26:21,373 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:26:21,373 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 02:26:21,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:26:21,374 INFO L87 Difference]: Start difference. First operand 4949 states and 6718 transitions. Second operand has 5 states, 5 states have (on average 18.4) internal successors, (92), 4 states have internal predecessors, (92), 2 states have call successors, (42), 1 states have call predecessors, (42), 2 states have return successors, (42), 3 states have call predecessors, (42), 2 states have call successors, (42) [2022-11-03 02:26:24,475 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.87s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:26:25,736 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:26:27,679 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:26:29,303 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:26:31,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:26:31,310 INFO L93 Difference]: Finished difference Result 9918 states and 13515 transitions. [2022-11-03 02:26:31,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-03 02:26:31,310 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.4) internal successors, (92), 4 states have internal predecessors, (92), 2 states have call successors, (42), 1 states have call predecessors, (42), 2 states have return successors, (42), 3 states have call predecessors, (42), 2 states have call successors, (42) Word has length 262 [2022-11-03 02:26:31,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:26:31,330 INFO L225 Difference]: With dead ends: 9918 [2022-11-03 02:26:31,330 INFO L226 Difference]: Without dead ends: 5092 [2022-11-03 02:26:31,346 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:26:31,346 INFO L413 NwaCegarLoop]: 1683 mSDtfsCounter, 61 mSDsluCounter, 5600 mSDsCounter, 0 mSdLazyCounter, 906 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 6624 SdHoareTripleChecker+Invalid, 906 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 906 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.1s IncrementalHoareTripleChecker+Time [2022-11-03 02:26:31,347 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [132 Valid, 6624 Invalid, 906 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 906 Invalid, 0 Unknown, 0 Unchecked, 9.1s Time] [2022-11-03 02:26:31,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5092 states. [2022-11-03 02:26:32,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5092 to 4953. [2022-11-03 02:26:32,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4953 states, 2759 states have (on average 1.2087712939470823) internal successors, (3335), 2884 states have internal predecessors, (3335), 1693 states have call successors, (1693), 497 states have call predecessors, (1693), 493 states have return successors, (1697), 1676 states have call predecessors, (1697), 1691 states have call successors, (1697) [2022-11-03 02:26:32,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4953 states to 4953 states and 6725 transitions. [2022-11-03 02:26:32,062 INFO L78 Accepts]: Start accepts. Automaton has 4953 states and 6725 transitions. Word has length 262 [2022-11-03 02:26:32,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:26:32,063 INFO L495 AbstractCegarLoop]: Abstraction has 4953 states and 6725 transitions. [2022-11-03 02:26:32,063 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.4) internal successors, (92), 4 states have internal predecessors, (92), 2 states have call successors, (42), 1 states have call predecessors, (42), 2 states have return successors, (42), 3 states have call predecessors, (42), 2 states have call successors, (42) [2022-11-03 02:26:32,063 INFO L276 IsEmpty]: Start isEmpty. Operand 4953 states and 6725 transitions. [2022-11-03 02:26:32,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 272 [2022-11-03 02:26:32,065 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:26:32,065 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 7, 7, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:26:32,066 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-11-03 02:26:32,066 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2022-11-03 02:26:32,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:26:32,066 INFO L85 PathProgramCache]: Analyzing trace with hash -1819150168, now seen corresponding path program 1 times [2022-11-03 02:26:32,067 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:26:32,067 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [76528177] [2022-11-03 02:26:32,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:26:32,067 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:26:32,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:26:33,126 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 349 trivial. 0 not checked. [2022-11-03 02:26:33,127 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:26:33,127 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [76528177] [2022-11-03 02:26:33,127 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [76528177] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:26:33,127 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:26:33,127 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 02:26:33,128 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [158200555] [2022-11-03 02:26:33,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:26:33,128 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 02:26:33,128 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:26:33,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 02:26:33,129 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:26:33,129 INFO L87 Difference]: Start difference. First operand 4953 states and 6725 transitions. Second operand has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 2 states have call successors, (47), 1 states have call predecessors, (47), 2 states have return successors, (47), 3 states have call predecessors, (47), 2 states have call successors, (47) [2022-11-03 02:26:34,946 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:26:36,723 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.78s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:26:38,182 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:26:40,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:26:40,946 INFO L93 Difference]: Finished difference Result 9981 states and 13611 transitions. [2022-11-03 02:26:40,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-03 02:26:40,947 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 2 states have call successors, (47), 1 states have call predecessors, (47), 2 states have return successors, (47), 3 states have call predecessors, (47), 2 states have call successors, (47) Word has length 271 [2022-11-03 02:26:40,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:26:40,960 INFO L225 Difference]: With dead ends: 9981 [2022-11-03 02:26:40,960 INFO L226 Difference]: Without dead ends: 5151 [2022-11-03 02:26:40,970 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:26:40,971 INFO L413 NwaCegarLoop]: 1708 mSDtfsCounter, 34 mSDsluCounter, 5690 mSDsCounter, 0 mSdLazyCounter, 897 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 6741 SdHoareTripleChecker+Invalid, 897 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 897 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2022-11-03 02:26:40,971 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 6741 Invalid, 897 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 897 Invalid, 0 Unknown, 0 Unchecked, 6.9s Time] [2022-11-03 02:26:40,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5151 states. [2022-11-03 02:26:41,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5151 to 4965. [2022-11-03 02:26:41,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4965 states, 2768 states have (on average 1.2080924855491328) internal successors, (3344), 2893 states have internal predecessors, (3344), 1693 states have call successors, (1693), 497 states have call predecessors, (1693), 496 states have return successors, (1705), 1679 states have call predecessors, (1705), 1691 states have call successors, (1705) [2022-11-03 02:26:41,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4965 states to 4965 states and 6742 transitions. [2022-11-03 02:26:41,731 INFO L78 Accepts]: Start accepts. Automaton has 4965 states and 6742 transitions. Word has length 271 [2022-11-03 02:26:41,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:26:41,731 INFO L495 AbstractCegarLoop]: Abstraction has 4965 states and 6742 transitions. [2022-11-03 02:26:41,732 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 2 states have call successors, (47), 1 states have call predecessors, (47), 2 states have return successors, (47), 3 states have call predecessors, (47), 2 states have call successors, (47) [2022-11-03 02:26:41,732 INFO L276 IsEmpty]: Start isEmpty. Operand 4965 states and 6742 transitions. [2022-11-03 02:26:41,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 285 [2022-11-03 02:26:41,734 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:26:41,734 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 7, 7, 6, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:26:41,735 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-11-03 02:26:41,735 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2022-11-03 02:26:41,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:26:41,735 INFO L85 PathProgramCache]: Analyzing trace with hash -1618076431, now seen corresponding path program 1 times [2022-11-03 02:26:41,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:26:41,736 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1199561966] [2022-11-03 02:26:41,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:26:41,736 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:26:41,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:26:42,248 INFO L134 CoverageAnalysis]: Checked inductivity of 428 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 428 trivial. 0 not checked. [2022-11-03 02:26:42,249 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:26:42,249 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1199561966] [2022-11-03 02:26:42,249 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1199561966] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:26:42,249 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:26:42,250 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:26:42,250 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1229998989] [2022-11-03 02:26:42,250 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:26:42,251 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:26:42,251 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:26:42,251 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:26:42,252 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:26:42,252 INFO L87 Difference]: Start difference. First operand 4965 states and 6742 transitions. Second operand has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 2 states have call successors, (50), 1 states have call predecessors, (50), 2 states have return successors, (50), 2 states have call predecessors, (50), 2 states have call successors, (50) [2022-11-03 02:26:43,856 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:26:45,878 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:26:47,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:26:47,815 INFO L93 Difference]: Finished difference Result 9814 states and 13345 transitions. [2022-11-03 02:26:47,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:26:47,816 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 2 states have call successors, (50), 1 states have call predecessors, (50), 2 states have return successors, (50), 2 states have call predecessors, (50), 2 states have call successors, (50) Word has length 284 [2022-11-03 02:26:47,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:26:47,827 INFO L225 Difference]: With dead ends: 9814 [2022-11-03 02:26:47,827 INFO L226 Difference]: Without dead ends: 4976 [2022-11-03 02:26:47,836 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:26:47,836 INFO L413 NwaCegarLoop]: 1567 mSDtfsCounter, 8 mSDsluCounter, 1775 mSDsCounter, 0 mSdLazyCounter, 434 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 3128 SdHoareTripleChecker+Invalid, 435 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 434 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2022-11-03 02:26:47,837 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 3128 Invalid, 435 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 434 Invalid, 1 Unknown, 0 Unchecked, 4.8s Time] [2022-11-03 02:26:47,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4976 states. [2022-11-03 02:26:48,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4976 to 4966. [2022-11-03 02:26:48,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4966 states, 2769 states have (on average 1.2080173347778982) internal successors, (3345), 2894 states have internal predecessors, (3345), 1693 states have call successors, (1693), 497 states have call predecessors, (1693), 496 states have return successors, (1705), 1679 states have call predecessors, (1705), 1691 states have call successors, (1705) [2022-11-03 02:26:48,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4966 states to 4966 states and 6743 transitions. [2022-11-03 02:26:48,489 INFO L78 Accepts]: Start accepts. Automaton has 4966 states and 6743 transitions. Word has length 284 [2022-11-03 02:26:48,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:26:48,489 INFO L495 AbstractCegarLoop]: Abstraction has 4966 states and 6743 transitions. [2022-11-03 02:26:48,490 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 2 states have call successors, (50), 1 states have call predecessors, (50), 2 states have return successors, (50), 2 states have call predecessors, (50), 2 states have call successors, (50) [2022-11-03 02:26:48,490 INFO L276 IsEmpty]: Start isEmpty. Operand 4966 states and 6743 transitions. [2022-11-03 02:26:48,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 293 [2022-11-03 02:26:48,497 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:26:48,497 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 7, 7, 7, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:26:48,497 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-11-03 02:26:48,498 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2022-11-03 02:26:48,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:26:48,498 INFO L85 PathProgramCache]: Analyzing trace with hash -889534407, now seen corresponding path program 1 times [2022-11-03 02:26:48,498 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:26:48,498 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1001835057] [2022-11-03 02:26:48,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:26:48,499 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:26:48,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:26:49,084 INFO L134 CoverageAnalysis]: Checked inductivity of 441 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 440 trivial. 0 not checked. [2022-11-03 02:26:49,085 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:26:49,085 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1001835057] [2022-11-03 02:26:49,085 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1001835057] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:26:49,085 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:26:49,085 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 02:26:49,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [514411255] [2022-11-03 02:26:49,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:26:49,086 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 02:26:49,087 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:26:49,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 02:26:49,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 02:26:49,087 INFO L87 Difference]: Start difference. First operand 4966 states and 6743 transitions. Second operand has 4 states, 4 states have (on average 26.25) internal successors, (105), 4 states have internal predecessors, (105), 2 states have call successors, (51), 1 states have call predecessors, (51), 2 states have return successors, (51), 2 states have call predecessors, (51), 2 states have call successors, (51) [2022-11-03 02:26:51,231 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:26:53,251 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:26:55,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:26:55,127 INFO L93 Difference]: Finished difference Result 9809 states and 13335 transitions. [2022-11-03 02:26:55,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 02:26:55,127 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.25) internal successors, (105), 4 states have internal predecessors, (105), 2 states have call successors, (51), 1 states have call predecessors, (51), 2 states have return successors, (51), 2 states have call predecessors, (51), 2 states have call successors, (51) Word has length 292 [2022-11-03 02:26:55,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:26:55,140 INFO L225 Difference]: With dead ends: 9809 [2022-11-03 02:26:55,140 INFO L226 Difference]: Without dead ends: 4970 [2022-11-03 02:26:55,152 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 02:26:55,153 INFO L413 NwaCegarLoop]: 1563 mSDtfsCounter, 1 mSDsluCounter, 3549 mSDsCounter, 0 mSdLazyCounter, 653 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 4683 SdHoareTripleChecker+Invalid, 654 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 653 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2022-11-03 02:26:55,153 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 4683 Invalid, 654 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 653 Invalid, 1 Unknown, 0 Unchecked, 5.3s Time] [2022-11-03 02:26:55,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4970 states. [2022-11-03 02:26:55,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4970 to 4968. [2022-11-03 02:26:55,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4968 states, 2771 states have (on average 1.207867195958138) internal successors, (3347), 2895 states have internal predecessors, (3347), 1693 states have call successors, (1693), 497 states have call predecessors, (1693), 496 states have return successors, (1705), 1679 states have call predecessors, (1705), 1691 states have call successors, (1705) [2022-11-03 02:26:55,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4968 states to 4968 states and 6745 transitions. [2022-11-03 02:26:55,784 INFO L78 Accepts]: Start accepts. Automaton has 4968 states and 6745 transitions. Word has length 292 [2022-11-03 02:26:55,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:26:55,785 INFO L495 AbstractCegarLoop]: Abstraction has 4968 states and 6745 transitions. [2022-11-03 02:26:55,785 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.25) internal successors, (105), 4 states have internal predecessors, (105), 2 states have call successors, (51), 1 states have call predecessors, (51), 2 states have return successors, (51), 2 states have call predecessors, (51), 2 states have call successors, (51) [2022-11-03 02:26:55,786 INFO L276 IsEmpty]: Start isEmpty. Operand 4968 states and 6745 transitions. [2022-11-03 02:26:55,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 298 [2022-11-03 02:26:55,788 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:26:55,788 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 7, 7, 7, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:26:55,789 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-11-03 02:26:55,789 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2022-11-03 02:26:55,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:26:55,790 INFO L85 PathProgramCache]: Analyzing trace with hash -1312010967, now seen corresponding path program 1 times [2022-11-03 02:26:55,790 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:26:55,790 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1133754726] [2022-11-03 02:26:55,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:26:55,790 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:26:55,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:26:56,443 INFO L134 CoverageAnalysis]: Checked inductivity of 445 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 442 trivial. 0 not checked. [2022-11-03 02:26:56,443 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:26:56,444 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1133754726] [2022-11-03 02:26:56,444 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1133754726] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 02:26:56,444 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [447862373] [2022-11-03 02:26:56,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:26:56,444 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:26:56,445 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc0b656a-bd04-48e5-beba-017d377d5494/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:26:56,449 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc0b656a-bd04-48e5-beba-017d377d5494/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:26:56,456 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc0b656a-bd04-48e5-beba-017d377d5494/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-03 02:26:57,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:26:57,793 INFO L263 TraceCheckSpWp]: Trace formula consists of 3570 conjuncts, 53 conjunts are in the unsatisfiable core [2022-11-03 02:26:57,804 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:26:58,759 INFO L134 CoverageAnalysis]: Checked inductivity of 445 backedges. 173 proven. 26 refuted. 0 times theorem prover too weak. 246 trivial. 0 not checked. [2022-11-03 02:26:58,759 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:26:59,462 INFO L134 CoverageAnalysis]: Checked inductivity of 445 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 445 trivial. 0 not checked. [2022-11-03 02:26:59,462 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [447862373] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-03 02:26:59,462 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-03 02:26:59,463 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [5, 14] total 23 [2022-11-03 02:26:59,463 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1637560726] [2022-11-03 02:26:59,463 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:26:59,464 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-03 02:26:59,464 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:26:59,464 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-03 02:26:59,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=124, Invalid=382, Unknown=0, NotChecked=0, Total=506 [2022-11-03 02:26:59,465 INFO L87 Difference]: Start difference. First operand 4968 states and 6745 transitions. Second operand has 8 states, 8 states have (on average 13.25) internal successors, (106), 7 states have internal predecessors, (106), 3 states have call successors, (52), 1 states have call predecessors, (52), 2 states have return successors, (52), 4 states have call predecessors, (52), 3 states have call successors, (52) [2022-11-03 02:27:05,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:27:05,481 INFO L93 Difference]: Finished difference Result 9843 states and 13373 transitions. [2022-11-03 02:27:05,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-03 02:27:05,482 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 13.25) internal successors, (106), 7 states have internal predecessors, (106), 3 states have call successors, (52), 1 states have call predecessors, (52), 2 states have return successors, (52), 4 states have call predecessors, (52), 3 states have call successors, (52) Word has length 297 [2022-11-03 02:27:05,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:27:05,494 INFO L225 Difference]: With dead ends: 9843 [2022-11-03 02:27:05,494 INFO L226 Difference]: Without dead ends: 5002 [2022-11-03 02:27:05,506 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 598 GetRequests, 574 SyntacticMatches, 2 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 188 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=138, Invalid=414, Unknown=0, NotChecked=0, Total=552 [2022-11-03 02:27:05,506 INFO L413 NwaCegarLoop]: 2358 mSDtfsCounter, 4100 mSDsluCounter, 5815 mSDsCounter, 0 mSdLazyCounter, 1168 mSolverCounterSat, 2547 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4107 SdHoareTripleChecker+Valid, 7438 SdHoareTripleChecker+Invalid, 3715 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2547 IncrementalHoareTripleChecker+Valid, 1168 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2022-11-03 02:27:05,506 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4107 Valid, 7438 Invalid, 3715 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2547 Valid, 1168 Invalid, 0 Unknown, 0 Unchecked, 4.8s Time] [2022-11-03 02:27:05,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5002 states. [2022-11-03 02:27:06,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5002 to 4972. [2022-11-03 02:27:06,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4972 states, 2775 states have (on average 1.207927927927928) internal successors, (3352), 2898 states have internal predecessors, (3352), 1693 states have call successors, (1693), 497 states have call predecessors, (1693), 496 states have return successors, (1705), 1680 states have call predecessors, (1705), 1691 states have call successors, (1705) [2022-11-03 02:27:06,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4972 states to 4972 states and 6750 transitions. [2022-11-03 02:27:06,086 INFO L78 Accepts]: Start accepts. Automaton has 4972 states and 6750 transitions. Word has length 297 [2022-11-03 02:27:06,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:27:06,086 INFO L495 AbstractCegarLoop]: Abstraction has 4972 states and 6750 transitions. [2022-11-03 02:27:06,086 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 13.25) internal successors, (106), 7 states have internal predecessors, (106), 3 states have call successors, (52), 1 states have call predecessors, (52), 2 states have return successors, (52), 4 states have call predecessors, (52), 3 states have call successors, (52) [2022-11-03 02:27:06,086 INFO L276 IsEmpty]: Start isEmpty. Operand 4972 states and 6750 transitions. [2022-11-03 02:27:06,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 319 [2022-11-03 02:27:06,088 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:27:06,088 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 7, 7, 7, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:27:06,122 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc0b656a-bd04-48e5-beba-017d377d5494/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-03 02:27:06,289 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc0b656a-bd04-48e5-beba-017d377d5494/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2022-11-03 02:27:06,289 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2022-11-03 02:27:06,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:27:06,289 INFO L85 PathProgramCache]: Analyzing trace with hash -1906076253, now seen corresponding path program 1 times [2022-11-03 02:27:06,289 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:27:06,290 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1524085122] [2022-11-03 02:27:06,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:27:06,290 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:27:06,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:27:07,432 INFO L134 CoverageAnalysis]: Checked inductivity of 445 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 445 trivial. 0 not checked. [2022-11-03 02:27:07,432 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:27:07,432 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1524085122] [2022-11-03 02:27:07,433 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1524085122] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:27:07,433 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:27:07,433 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 02:27:07,433 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1869210446] [2022-11-03 02:27:07,433 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:27:07,434 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 02:27:07,434 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:27:07,434 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 02:27:07,435 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:27:07,435 INFO L87 Difference]: Start difference. First operand 4972 states and 6750 transitions. Second operand has 5 states, 5 states have (on average 23.0) internal successors, (115), 5 states have internal predecessors, (115), 2 states have call successors, (58), 1 states have call predecessors, (58), 1 states have return successors, (58), 2 states have call predecessors, (58), 2 states have call successors, (58) [2022-11-03 02:27:10,433 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:27:13,330 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:27:14,530 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:27:18,995 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:27:21,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:27:21,419 INFO L93 Difference]: Finished difference Result 6474 states and 9157 transitions. [2022-11-03 02:27:21,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-03 02:27:21,419 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.0) internal successors, (115), 5 states have internal predecessors, (115), 2 states have call successors, (58), 1 states have call predecessors, (58), 1 states have return successors, (58), 2 states have call predecessors, (58), 2 states have call successors, (58) Word has length 318 [2022-11-03 02:27:21,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:27:21,442 INFO L225 Difference]: With dead ends: 6474 [2022-11-03 02:27:21,442 INFO L226 Difference]: Without dead ends: 6472 [2022-11-03 02:27:21,446 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-11-03 02:27:21,447 INFO L413 NwaCegarLoop]: 2421 mSDtfsCounter, 586 mSDsluCounter, 7121 mSDsCounter, 0 mSdLazyCounter, 1185 mSolverCounterSat, 450 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 782 SdHoareTripleChecker+Valid, 8724 SdHoareTripleChecker+Invalid, 1637 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 450 IncrementalHoareTripleChecker+Valid, 1185 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.3s IncrementalHoareTripleChecker+Time [2022-11-03 02:27:21,447 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [782 Valid, 8724 Invalid, 1637 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [450 Valid, 1185 Invalid, 2 Unknown, 0 Unchecked, 12.3s Time] [2022-11-03 02:27:21,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6472 states. [2022-11-03 02:27:22,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6472 to 4972. [2022-11-03 02:27:22,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4972 states, 2775 states have (on average 1.2072072072072073) internal successors, (3350), 2898 states have internal predecessors, (3350), 1693 states have call successors, (1693), 497 states have call predecessors, (1693), 496 states have return successors, (1705), 1680 states have call predecessors, (1705), 1691 states have call successors, (1705) [2022-11-03 02:27:22,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4972 states to 4972 states and 6748 transitions. [2022-11-03 02:27:22,147 INFO L78 Accepts]: Start accepts. Automaton has 4972 states and 6748 transitions. Word has length 318 [2022-11-03 02:27:22,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:27:22,148 INFO L495 AbstractCegarLoop]: Abstraction has 4972 states and 6748 transitions. [2022-11-03 02:27:22,148 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.0) internal successors, (115), 5 states have internal predecessors, (115), 2 states have call successors, (58), 1 states have call predecessors, (58), 1 states have return successors, (58), 2 states have call predecessors, (58), 2 states have call successors, (58) [2022-11-03 02:27:22,148 INFO L276 IsEmpty]: Start isEmpty. Operand 4972 states and 6748 transitions. [2022-11-03 02:27:22,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 333 [2022-11-03 02:27:22,150 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:27:22,150 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 9, 8, 7, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:27:22,150 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-11-03 02:27:22,151 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2022-11-03 02:27:22,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:27:22,151 INFO L85 PathProgramCache]: Analyzing trace with hash 1494302754, now seen corresponding path program 1 times [2022-11-03 02:27:22,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:27:22,151 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [173238359] [2022-11-03 02:27:22,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:27:22,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:27:22,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:27:23,627 INFO L134 CoverageAnalysis]: Checked inductivity of 572 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 572 trivial. 0 not checked. [2022-11-03 02:27:23,627 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:27:23,627 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [173238359] [2022-11-03 02:27:23,627 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [173238359] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:27:23,627 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:27:23,628 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-03 02:27:23,628 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1615836780] [2022-11-03 02:27:23,628 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:27:23,629 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-03 02:27:23,629 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:27:23,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-03 02:27:23,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-03 02:27:23,630 INFO L87 Difference]: Start difference. First operand 4972 states and 6748 transitions. Second operand has 7 states, 6 states have (on average 19.833333333333332) internal successors, (119), 6 states have internal predecessors, (119), 2 states have call successors, (59), 1 states have call predecessors, (59), 2 states have return successors, (59), 3 states have call predecessors, (59), 2 states have call successors, (59) [2022-11-03 02:27:26,121 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:27:28,140 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:27:31,217 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.68s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:27:35,775 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.77s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:27:37,357 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.58s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:27:39,379 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:27:41,099 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.72s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:27:43,121 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:27:44,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:27:44,545 INFO L93 Difference]: Finished difference Result 10556 states and 14534 transitions. [2022-11-03 02:27:44,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-03 02:27:44,546 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 19.833333333333332) internal successors, (119), 6 states have internal predecessors, (119), 2 states have call successors, (59), 1 states have call predecessors, (59), 2 states have return successors, (59), 3 states have call predecessors, (59), 2 states have call successors, (59) Word has length 332 [2022-11-03 02:27:44,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:27:44,569 INFO L225 Difference]: With dead ends: 10556 [2022-11-03 02:27:44,569 INFO L226 Difference]: Without dead ends: 5711 [2022-11-03 02:27:44,586 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-11-03 02:27:44,586 INFO L413 NwaCegarLoop]: 1981 mSDtfsCounter, 248 mSDsluCounter, 10567 mSDsCounter, 0 mSdLazyCounter, 1442 mSolverCounterSat, 136 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 434 SdHoareTripleChecker+Valid, 11419 SdHoareTripleChecker+Invalid, 1581 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 136 IncrementalHoareTripleChecker+Valid, 1442 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.5s IncrementalHoareTripleChecker+Time [2022-11-03 02:27:44,586 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [434 Valid, 11419 Invalid, 1581 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [136 Valid, 1442 Invalid, 3 Unknown, 0 Unchecked, 19.5s Time] [2022-11-03 02:27:44,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5711 states. [2022-11-03 02:27:45,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5711 to 5115. [2022-11-03 02:27:45,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5115 states, 2865 states have (on average 1.211867364746946) internal successors, (3472), 2998 states have internal predecessors, (3472), 1745 states have call successors, (1745), 497 states have call predecessors, (1745), 497 states have return successors, (1760), 1729 states have call predecessors, (1760), 1743 states have call successors, (1760) [2022-11-03 02:27:45,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5115 states to 5115 states and 6977 transitions. [2022-11-03 02:27:45,319 INFO L78 Accepts]: Start accepts. Automaton has 5115 states and 6977 transitions. Word has length 332 [2022-11-03 02:27:45,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:27:45,319 INFO L495 AbstractCegarLoop]: Abstraction has 5115 states and 6977 transitions. [2022-11-03 02:27:45,320 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 19.833333333333332) internal successors, (119), 6 states have internal predecessors, (119), 2 states have call successors, (59), 1 states have call predecessors, (59), 2 states have return successors, (59), 3 states have call predecessors, (59), 2 states have call successors, (59) [2022-11-03 02:27:45,320 INFO L276 IsEmpty]: Start isEmpty. Operand 5115 states and 6977 transitions. [2022-11-03 02:27:45,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 355 [2022-11-03 02:27:45,324 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:27:45,324 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 8, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:27:45,325 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-11-03 02:27:45,325 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ldv_linux_fs_char_dev_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2022-11-03 02:27:45,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:27:45,325 INFO L85 PathProgramCache]: Analyzing trace with hash -1276803261, now seen corresponding path program 1 times [2022-11-03 02:27:45,326 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:27:45,326 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [686786633] [2022-11-03 02:27:45,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:27:45,326 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:27:45,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:27:45,955 INFO L134 CoverageAnalysis]: Checked inductivity of 552 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 552 trivial. 0 not checked. [2022-11-03 02:27:45,955 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:27:45,955 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [686786633] [2022-11-03 02:27:45,955 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [686786633] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:27:45,956 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:27:45,956 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 02:27:45,956 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [989210529] [2022-11-03 02:27:45,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:27:45,957 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 02:27:45,958 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:27:45,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 02:27:45,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 02:27:45,958 INFO L87 Difference]: Start difference. First operand 5115 states and 6977 transitions. Second operand has 4 states, 4 states have (on average 31.25) internal successors, (125), 4 states have internal predecessors, (125), 2 states have call successors, (62), 2 states have call predecessors, (62), 1 states have return successors, (61), 2 states have call predecessors, (61), 2 states have call successors, (61) [2022-11-03 02:27:49,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:27:49,295 INFO L93 Difference]: Finished difference Result 5115 states and 6977 transitions. [2022-11-03 02:27:49,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 02:27:49,295 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 31.25) internal successors, (125), 4 states have internal predecessors, (125), 2 states have call successors, (62), 2 states have call predecessors, (62), 1 states have return successors, (61), 2 states have call predecessors, (61), 2 states have call successors, (61) Word has length 354 [2022-11-03 02:27:49,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:27:49,315 INFO L225 Difference]: With dead ends: 5115 [2022-11-03 02:27:49,315 INFO L226 Difference]: Without dead ends: 5113 [2022-11-03 02:27:49,319 INFO L412 NwaCegarLoop]: 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 [2022-11-03 02:27:49,320 INFO L413 NwaCegarLoop]: 1559 mSDtfsCounter, 1682 mSDsluCounter, 1773 mSDsCounter, 0 mSdLazyCounter, 431 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1684 SdHoareTripleChecker+Valid, 3118 SdHoareTripleChecker+Invalid, 431 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 431 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-11-03 02:27:49,320 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1684 Valid, 3118 Invalid, 431 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 431 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-11-03 02:27:49,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5113 states. [2022-11-03 02:27:50,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5113 to 5113. [2022-11-03 02:27:50,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5113 states, 2864 states have (on average 1.2115921787709498) internal successors, (3470), 2996 states have internal predecessors, (3470), 1745 states have call successors, (1745), 497 states have call predecessors, (1745), 497 states have return successors, (1760), 1729 states have call predecessors, (1760), 1743 states have call successors, (1760) [2022-11-03 02:27:50,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5113 states to 5113 states and 6975 transitions. [2022-11-03 02:27:50,038 INFO L78 Accepts]: Start accepts. Automaton has 5113 states and 6975 transitions. Word has length 354 [2022-11-03 02:27:50,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:27:50,039 INFO L495 AbstractCegarLoop]: Abstraction has 5113 states and 6975 transitions. [2022-11-03 02:27:50,039 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.25) internal successors, (125), 4 states have internal predecessors, (125), 2 states have call successors, (62), 2 states have call predecessors, (62), 1 states have return successors, (61), 2 states have call predecessors, (61), 2 states have call successors, (61) [2022-11-03 02:27:50,039 INFO L276 IsEmpty]: Start isEmpty. Operand 5113 states and 6975 transitions. [2022-11-03 02:27:50,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 361 [2022-11-03 02:27:50,041 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:27:50,042 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 10, 9, 7, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:27:50,042 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-11-03 02:27:50,042 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2022-11-03 02:27:50,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:27:50,042 INFO L85 PathProgramCache]: Analyzing trace with hash -1004727660, now seen corresponding path program 1 times [2022-11-03 02:27:50,042 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:27:50,042 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [970321033] [2022-11-03 02:27:50,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:27:50,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:27:50,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:27:50,741 INFO L134 CoverageAnalysis]: Checked inductivity of 737 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 734 trivial. 0 not checked. [2022-11-03 02:27:50,741 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:27:50,741 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [970321033] [2022-11-03 02:27:50,742 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [970321033] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 02:27:50,742 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [21014372] [2022-11-03 02:27:50,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:27:50,743 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:27:50,743 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc0b656a-bd04-48e5-beba-017d377d5494/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:27:50,745 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc0b656a-bd04-48e5-beba-017d377d5494/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:27:50,771 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc0b656a-bd04-48e5-beba-017d377d5494/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-03 02:27:52,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:27:52,291 INFO L263 TraceCheckSpWp]: Trace formula consists of 4079 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-03 02:27:52,302 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:27:52,392 INFO L134 CoverageAnalysis]: Checked inductivity of 737 backedges. 190 proven. 0 refuted. 0 times theorem prover too weak. 547 trivial. 0 not checked. [2022-11-03 02:27:52,392 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:27:52,392 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [21014372] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:27:52,392 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-03 02:27:52,393 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [5] total 11 [2022-11-03 02:27:52,393 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [136139735] [2022-11-03 02:27:52,393 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:27:52,394 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-03 02:27:52,394 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:27:52,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-03 02:27:52,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2022-11-03 02:27:52,395 INFO L87 Difference]: Start difference. First operand 5113 states and 6975 transitions. Second operand has 8 states, 6 states have (on average 22.166666666666668) internal successors, (133), 7 states have internal predecessors, (133), 3 states have call successors, (67), 2 states have call predecessors, (67), 4 states have return successors, (65), 4 states have call predecessors, (65), 3 states have call successors, (65) [2022-11-03 02:27:55,008 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:27:59,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:27:59,502 INFO L93 Difference]: Finished difference Result 10109 states and 13809 transitions. [2022-11-03 02:27:59,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-03 02:27:59,503 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 22.166666666666668) internal successors, (133), 7 states have internal predecessors, (133), 3 states have call successors, (67), 2 states have call predecessors, (67), 4 states have return successors, (65), 4 states have call predecessors, (65), 3 states have call successors, (65) Word has length 360 [2022-11-03 02:27:59,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:27:59,518 INFO L225 Difference]: With dead ends: 10109 [2022-11-03 02:27:59,518 INFO L226 Difference]: Without dead ends: 5122 [2022-11-03 02:27:59,529 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 366 GetRequests, 355 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2022-11-03 02:27:59,530 INFO L413 NwaCegarLoop]: 1729 mSDtfsCounter, 79 mSDsluCounter, 11501 mSDsCounter, 0 mSdLazyCounter, 1841 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 11893 SdHoareTripleChecker+Invalid, 1846 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1841 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2022-11-03 02:27:59,530 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [160 Valid, 11893 Invalid, 1846 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1841 Invalid, 1 Unknown, 0 Unchecked, 6.0s Time] [2022-11-03 02:27:59,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5122 states. [2022-11-03 02:28:00,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5122 to 4979. [2022-11-03 02:28:00,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4979 states, 2780 states have (on average 1.2064748201438849) internal successors, (3354), 2902 states have internal predecessors, (3354), 1695 states have call successors, (1695), 497 states have call predecessors, (1695), 497 states have return successors, (1709), 1683 states have call predecessors, (1709), 1693 states have call successors, (1709) [2022-11-03 02:28:00,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4979 states to 4979 states and 6758 transitions. [2022-11-03 02:28:00,223 INFO L78 Accepts]: Start accepts. Automaton has 4979 states and 6758 transitions. Word has length 360 [2022-11-03 02:28:00,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:28:00,223 INFO L495 AbstractCegarLoop]: Abstraction has 4979 states and 6758 transitions. [2022-11-03 02:28:00,223 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 22.166666666666668) internal successors, (133), 7 states have internal predecessors, (133), 3 states have call successors, (67), 2 states have call predecessors, (67), 4 states have return successors, (65), 4 states have call predecessors, (65), 3 states have call successors, (65) [2022-11-03 02:28:00,223 INFO L276 IsEmpty]: Start isEmpty. Operand 4979 states and 6758 transitions. [2022-11-03 02:28:00,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 364 [2022-11-03 02:28:00,226 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:28:00,226 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 10, 8, 7, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:28:00,255 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc0b656a-bd04-48e5-beba-017d377d5494/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-03 02:28:00,427 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc0b656a-bd04-48e5-beba-017d377d5494/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2022-11-03 02:28:00,427 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2022-11-03 02:28:00,427 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:28:00,428 INFO L85 PathProgramCache]: Analyzing trace with hash -1365544067, now seen corresponding path program 1 times [2022-11-03 02:28:00,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:28:00,429 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1423542524] [2022-11-03 02:28:00,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:28:00,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:28:00,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:28:01,164 INFO L134 CoverageAnalysis]: Checked inductivity of 558 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 555 trivial. 0 not checked. [2022-11-03 02:28:01,165 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:28:01,165 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1423542524] [2022-11-03 02:28:01,165 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1423542524] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 02:28:01,165 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1137543096] [2022-11-03 02:28:01,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:28:01,166 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:28:01,166 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc0b656a-bd04-48e5-beba-017d377d5494/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:28:01,169 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc0b656a-bd04-48e5-beba-017d377d5494/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:28:01,189 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc0b656a-bd04-48e5-beba-017d377d5494/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-03 02:28:03,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:28:03,513 INFO L263 TraceCheckSpWp]: Trace formula consists of 4277 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-03 02:28:03,528 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:28:03,561 INFO L134 CoverageAnalysis]: Checked inductivity of 558 backedges. 153 proven. 2 refuted. 0 times theorem prover too weak. 403 trivial. 0 not checked. [2022-11-03 02:28:03,561 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:28:03,936 INFO L134 CoverageAnalysis]: Checked inductivity of 558 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 555 trivial. 0 not checked. [2022-11-03 02:28:03,936 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1137543096] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 02:28:03,936 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1793226417] [2022-11-03 02:28:03,973 INFO L159 IcfgInterpreter]: Started Sifa with 219 locations of interest [2022-11-03 02:28:03,973 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 02:28:03,978 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 02:28:03,984 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 02:28:03,985 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 02:28:06,336 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 10 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 26 [2022-11-03 02:28:06,623 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 10 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 26 [2022-11-03 02:28:06,776 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 10 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 26 [2022-11-03 02:28:06,894 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 10 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 26 [2022-11-03 02:28:06,993 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 10 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 26 [2022-11-03 02:28:07,156 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 10 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 26 [2022-11-03 02:28:07,244 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 10 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 26 [2022-11-03 02:28:44,538 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-03 02:28:44,549 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-11-03 02:29:07,626 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:29:07,628 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:29:07,630 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:29:07,642 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:29:07,645 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:29:07,656 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:29:07,728 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:29:07,731 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:29:07,733 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:29:07,735 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:29:07,737 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:29:07,740 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:29:07,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:29:07,744 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:29:07,746 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:29:07,748 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:29:07,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:29:07,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:29:07,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:29:07,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:29:07,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:29:07,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:29:07,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:29:07,766 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:29:07,768 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:29:07,770 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:29:07,772 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:29:07,773 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:29:07,775 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:29:07,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:29:07,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:29:07,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:29:07,784 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:29:07,786 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:29:07,788 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:29:07,791 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:29:07,792 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:29:07,794 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:29:07,797 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:29:07,799 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:29:07,801 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:29:07,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:29:07,805 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:29:07,807 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:29:07,809 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:29:07,811 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:29:07,813 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:29:07,817 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:29:07,819 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:29:07,821 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:29:07,823 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:29:07,826 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:29:07,829 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:29:07,833 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:29:07,836 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:29:07,838 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:29:07,840 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:29:07,842 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:29:07,844 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:29:07,846 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:29:07,849 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:29:09,740 INFO L356 Elim1Store]: treesize reduction 60, result has 35.5 percent of original size [2022-11-03 02:29:09,744 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 150 select indices, 150 select index equivalence classes, 3702 disjoint index pairs (out of 11175 index pairs), introduced 150 new quantified variables, introduced 4 case distinctions, treesize of input 8627 treesize of output 8185 [2022-11-03 02:29:11,946 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:29:11,948 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:29:11,950 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:29:11,953 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:29:11,955 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:29:11,957 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:29:11,960 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:29:11,962 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:29:11,963 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:29:11,965 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:29:11,966 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:29:11,968 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:29:11,970 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:29:11,971 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:29:11,973 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:29:11,975 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:29:11,976 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:29:11,978 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:29:11,980 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:29:11,984 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:29:11,985 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:29:11,989 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:29:11,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:29:11,992 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:29:11,993 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:29:11,995 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:29:11,997 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:29:11,999 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:29:12,000 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:29:12,002 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:29:12,004 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:29:12,006 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:29:12,009 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:29:12,011 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:29:12,012 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:29:12,014 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:29:12,016 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:29:12,018 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:29:12,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:29:12,021 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:29:12,023 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:29:12,024 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:29:12,057 INFO L244 Elim1Store]: Index analysis took 111 ms [2022-11-03 02:29:12,064 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:29:12,066 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:29:12,068 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:29:12,070 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:29:12,071 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:29:12,073 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:29:12,075 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:29:12,076 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:29:12,078 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:29:12,080 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:29:12,082 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:29:12,083 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:29:12,085 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:29:12,088 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:29:12,090 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:29:12,092 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:29:12,093 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:29:12,095 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:29:12,097 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:29:12,099 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:29:12,100 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:29:12,102 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:29:12,104 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:29:12,106 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:29:12,108 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:29:12,109 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:29:12,111 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:29:12,113 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:29:12,115 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:29:12,117 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:29:12,119 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:29:12,121 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:29:12,122 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:29:12,124 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:29:12,126 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:29:12,128 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:29:12,130 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:29:12,133 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:29:12,134 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:29:12,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:29:12,140 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:29:12,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:29:12,144 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:29:12,146 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:29:12,148 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:29:12,150 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:29:12,152 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:29:12,154 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:29:12,156 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:29:12,158 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:29:12,160 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:29:12,162 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:29:12,164 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:29:12,166 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:29:12,168 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:29:12,170 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:29:12,172 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:29:12,174 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:29:12,176 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:29:12,178 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:29:12,180 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:29:14,676 INFO L356 Elim1Store]: treesize reduction 240, result has 40.9 percent of original size [2022-11-03 02:29:14,679 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 118 select indices, 118 select index equivalence classes, 1222 disjoint index pairs (out of 6903 index pairs), introduced 118 new quantified variables, introduced 15 case distinctions, treesize of input 8623 treesize of output 8410 [2022-11-03 02:29:16,099 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:29:16,101 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:29:16,103 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:29:16,108 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:29:16,110 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:29:16,116 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:29:16,158 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:29:16,160 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:29:16,162 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:29:16,164 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:29:16,166 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:29:16,169 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:29:16,171 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:29:16,173 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:29:16,175 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:29:16,177 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:29:16,179 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:29:16,181 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:29:16,183 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:29:16,185 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:29:16,187 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:29:16,189 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:29:16,191 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:29:16,193 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:29:16,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:29:16,197 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:29:16,199 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:29:16,201 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:29:16,203 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:29:16,206 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:29:16,208 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:29:16,211 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:29:16,213 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:29:16,215 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:29:16,217 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:29:16,219 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:29:16,221 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:29:16,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:29:16,225 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:29:16,228 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:29:16,230 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:29:16,232 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:29:16,234 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:29:16,236 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:29:16,238 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:29:16,240 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:29:16,242 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:29:16,245 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:29:16,247 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:29:16,249 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:29:16,251 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:29:16,254 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:29:16,256 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:29:16,258 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:29:16,260 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:29:16,262 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:29:16,265 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:29:16,267 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:29:16,269 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:29:16,271 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:29:16,274 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:29:17,326 INFO L356 Elim1Store]: treesize reduction 48, result has 48.4 percent of original size [2022-11-03 02:29:17,329 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 150 select indices, 150 select index equivalence classes, 3702 disjoint index pairs (out of 11175 index pairs), introduced 150 new quantified variables, introduced 4 case distinctions, treesize of input 8499 treesize of output 8069 [2022-11-03 02:29:19,792 INFO L356 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2022-11-03 02:29:19,793 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 8467 treesize of output 8465 [2022-11-03 02:29:21,780 INFO L356 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-03 02:29:21,782 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 8462 treesize of output 8462 [2022-11-03 02:31:08,547 WARN L234 SmtUtils]: Spent 5.08s on a formula simplification that was a NOOP. DAG size: 1686 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-11-03 02:32:29,263 WARN L234 SmtUtils]: Spent 8.86s on a formula simplification. DAG size of input: 1696 DAG size of output: 1696 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-11-03 02:33:39,630 WARN L234 SmtUtils]: Spent 8.76s on a formula simplification. DAG size of input: 1700 DAG size of output: 1700 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-11-03 02:34:43,378 WARN L234 SmtUtils]: Spent 6.93s on a formula simplification that was a NOOP. DAG size: 1701 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-11-03 02:36:22,178 WARN L234 SmtUtils]: Spent 8.94s on a formula simplification that was a NOOP. DAG size: 1710 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify)