./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--block--xen-blkfront.ko.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e04fb08f 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_33a2e7ad-cbec-46fb-8f46-1228591dd582/bin/utaipan-Xvt2sAort0/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a2e7ad-cbec-46fb-8f46-1228591dd582/bin/utaipan-Xvt2sAort0/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a2e7ad-cbec-46fb-8f46-1228591dd582/bin/utaipan-Xvt2sAort0/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a2e7ad-cbec-46fb-8f46-1228591dd582/bin/utaipan-Xvt2sAort0/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a2e7ad-cbec-46fb-8f46-1228591dd582/bin/utaipan-Xvt2sAort0/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a2e7ad-cbec-46fb-8f46-1228591dd582/bin/utaipan-Xvt2sAort0 --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 dedd6e816706b4c34868dad2bcfd19a22eb16a791a20ccdf71875d228cd47b87 --- 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-e04fb08 [2022-11-16 16:22:25,293 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 16:22:25,296 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 16:22:25,325 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 16:22:25,326 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 16:22:25,330 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 16:22:25,335 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 16:22:25,344 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 16:22:25,347 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 16:22:25,355 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 16:22:25,356 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 16:22:25,358 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 16:22:25,359 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 16:22:25,362 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 16:22:25,366 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 16:22:25,370 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 16:22:25,373 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 16:22:25,374 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 16:22:25,376 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 16:22:25,378 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 16:22:25,383 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 16:22:25,384 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 16:22:25,388 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 16:22:25,389 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 16:22:25,396 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 16:22:25,402 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 16:22:25,402 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 16:22:25,403 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 16:22:25,405 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 16:22:25,406 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 16:22:25,408 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 16:22:25,409 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 16:22:25,410 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 16:22:25,412 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 16:22:25,414 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 16:22:25,415 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 16:22:25,415 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 16:22:25,416 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 16:22:25,416 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 16:22:25,417 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 16:22:25,418 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 16:22:25,419 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a2e7ad-cbec-46fb-8f46-1228591dd582/bin/utaipan-Xvt2sAort0/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-16 16:22:25,478 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 16:22:25,478 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 16:22:25,479 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 16:22:25,479 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 16:22:25,480 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 16:22:25,481 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 16:22:25,481 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-16 16:22:25,481 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-16 16:22:25,481 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-16 16:22:25,482 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-16 16:22:25,483 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-16 16:22:25,483 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-16 16:22:25,483 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-16 16:22:25,484 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-16 16:22:25,484 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-16 16:22:25,484 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-16 16:22:25,485 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-16 16:22:25,485 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-16 16:22:25,486 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 16:22:25,486 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 16:22:25,486 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 16:22:25,486 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 16:22:25,487 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 16:22:25,487 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 16:22:25,487 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 16:22:25,488 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 16:22:25,488 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 16:22:25,489 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 16:22:25,490 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 16:22:25,490 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 16:22:25,490 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 16:22:25,491 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-16 16:22:25,491 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 16:22:25,491 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 16:22:25,492 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-16 16:22:25,492 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 16:22:25,492 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 16:22:25,492 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-16 16:22:25,493 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_33a2e7ad-cbec-46fb-8f46-1228591dd582/bin/utaipan-Xvt2sAort0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a2e7ad-cbec-46fb-8f46-1228591dd582/bin/utaipan-Xvt2sAort0 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dedd6e816706b4c34868dad2bcfd19a22eb16a791a20ccdf71875d228cd47b87 [2022-11-16 16:22:25,780 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 16:22:25,807 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 16:22:25,811 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 16:22:25,813 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 16:22:25,814 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 16:22:25,815 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a2e7ad-cbec-46fb-8f46-1228591dd582/bin/utaipan-Xvt2sAort0/../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i [2022-11-16 16:22:25,878 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a2e7ad-cbec-46fb-8f46-1228591dd582/bin/utaipan-Xvt2sAort0/data/99121e20a/f7519a1fff5a4a78ad1ee6983175fd96/FLAG8bb3d97f2 [2022-11-16 16:22:26,854 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 16:22:26,855 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a2e7ad-cbec-46fb-8f46-1228591dd582/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i [2022-11-16 16:22:26,914 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a2e7ad-cbec-46fb-8f46-1228591dd582/bin/utaipan-Xvt2sAort0/data/99121e20a/f7519a1fff5a4a78ad1ee6983175fd96/FLAG8bb3d97f2 [2022-11-16 16:22:27,219 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a2e7ad-cbec-46fb-8f46-1228591dd582/bin/utaipan-Xvt2sAort0/data/99121e20a/f7519a1fff5a4a78ad1ee6983175fd96 [2022-11-16 16:22:27,221 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 16:22:27,224 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 16:22:27,226 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 16:22:27,227 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 16:22:27,231 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 16:22:27,232 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 04:22:27" (1/1) ... [2022-11-16 16:22:27,234 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3cae18cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:22:27, skipping insertion in model container [2022-11-16 16:22:27,234 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 04:22:27" (1/1) ... [2022-11-16 16:22:27,243 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 16:22:27,455 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 16:22:32,085 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a2e7ad-cbec-46fb-8f46-1228591dd582/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[373036,373049] [2022-11-16 16:22:32,089 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a2e7ad-cbec-46fb-8f46-1228591dd582/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[373181,373194] [2022-11-16 16:22:32,090 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a2e7ad-cbec-46fb-8f46-1228591dd582/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[373327,373340] [2022-11-16 16:22:32,090 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a2e7ad-cbec-46fb-8f46-1228591dd582/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[373492,373505] [2022-11-16 16:22:32,091 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a2e7ad-cbec-46fb-8f46-1228591dd582/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[373650,373663] [2022-11-16 16:22:32,091 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a2e7ad-cbec-46fb-8f46-1228591dd582/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[373808,373821] [2022-11-16 16:22:32,092 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a2e7ad-cbec-46fb-8f46-1228591dd582/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[373966,373979] [2022-11-16 16:22:32,093 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a2e7ad-cbec-46fb-8f46-1228591dd582/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[374126,374139] [2022-11-16 16:22:32,093 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a2e7ad-cbec-46fb-8f46-1228591dd582/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[374285,374298] [2022-11-16 16:22:32,094 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a2e7ad-cbec-46fb-8f46-1228591dd582/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[374424,374437] [2022-11-16 16:22:32,095 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a2e7ad-cbec-46fb-8f46-1228591dd582/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[374566,374579] [2022-11-16 16:22:32,095 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a2e7ad-cbec-46fb-8f46-1228591dd582/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[374715,374728] [2022-11-16 16:22:32,096 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a2e7ad-cbec-46fb-8f46-1228591dd582/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[374854,374867] [2022-11-16 16:22:32,096 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a2e7ad-cbec-46fb-8f46-1228591dd582/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[375009,375022] [2022-11-16 16:22:32,097 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a2e7ad-cbec-46fb-8f46-1228591dd582/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[375169,375182] [2022-11-16 16:22:32,098 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a2e7ad-cbec-46fb-8f46-1228591dd582/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[375320,375333] [2022-11-16 16:22:32,099 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a2e7ad-cbec-46fb-8f46-1228591dd582/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[375471,375484] [2022-11-16 16:22:32,099 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a2e7ad-cbec-46fb-8f46-1228591dd582/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[375623,375636] [2022-11-16 16:22:32,100 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a2e7ad-cbec-46fb-8f46-1228591dd582/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[375772,375785] [2022-11-16 16:22:32,100 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a2e7ad-cbec-46fb-8f46-1228591dd582/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[375920,375933] [2022-11-16 16:22:32,101 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a2e7ad-cbec-46fb-8f46-1228591dd582/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[376077,376090] [2022-11-16 16:22:32,102 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a2e7ad-cbec-46fb-8f46-1228591dd582/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[376226,376239] [2022-11-16 16:22:32,102 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a2e7ad-cbec-46fb-8f46-1228591dd582/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[376382,376395] [2022-11-16 16:22:32,103 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a2e7ad-cbec-46fb-8f46-1228591dd582/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[376535,376548] [2022-11-16 16:22:32,103 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a2e7ad-cbec-46fb-8f46-1228591dd582/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[376681,376694] [2022-11-16 16:22:32,104 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a2e7ad-cbec-46fb-8f46-1228591dd582/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[376824,376837] [2022-11-16 16:22:32,104 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a2e7ad-cbec-46fb-8f46-1228591dd582/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[376976,376989] [2022-11-16 16:22:32,105 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a2e7ad-cbec-46fb-8f46-1228591dd582/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[377122,377135] [2022-11-16 16:22:32,106 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a2e7ad-cbec-46fb-8f46-1228591dd582/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[377267,377280] [2022-11-16 16:22:32,106 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a2e7ad-cbec-46fb-8f46-1228591dd582/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[377421,377434] [2022-11-16 16:22:32,107 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a2e7ad-cbec-46fb-8f46-1228591dd582/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[377572,377585] [2022-11-16 16:22:32,107 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a2e7ad-cbec-46fb-8f46-1228591dd582/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[377727,377740] [2022-11-16 16:22:32,108 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a2e7ad-cbec-46fb-8f46-1228591dd582/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[377879,377892] [2022-11-16 16:22:32,109 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a2e7ad-cbec-46fb-8f46-1228591dd582/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[378034,378047] [2022-11-16 16:22:32,109 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a2e7ad-cbec-46fb-8f46-1228591dd582/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[378198,378211] [2022-11-16 16:22:32,110 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a2e7ad-cbec-46fb-8f46-1228591dd582/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[378354,378367] [2022-11-16 16:22:32,110 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a2e7ad-cbec-46fb-8f46-1228591dd582/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[378518,378531] [2022-11-16 16:22:32,111 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a2e7ad-cbec-46fb-8f46-1228591dd582/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[378660,378673] [2022-11-16 16:22:32,111 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a2e7ad-cbec-46fb-8f46-1228591dd582/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[378818,378831] [2022-11-16 16:22:32,112 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a2e7ad-cbec-46fb-8f46-1228591dd582/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[378985,378998] [2022-11-16 16:22:32,112 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a2e7ad-cbec-46fb-8f46-1228591dd582/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[379144,379157] [2022-11-16 16:22:32,113 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a2e7ad-cbec-46fb-8f46-1228591dd582/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[379303,379316] [2022-11-16 16:22:32,114 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a2e7ad-cbec-46fb-8f46-1228591dd582/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[379452,379465] [2022-11-16 16:22:32,115 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a2e7ad-cbec-46fb-8f46-1228591dd582/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[379599,379612] [2022-11-16 16:22:32,116 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a2e7ad-cbec-46fb-8f46-1228591dd582/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[379738,379751] [2022-11-16 16:22:32,116 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a2e7ad-cbec-46fb-8f46-1228591dd582/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[379901,379914] [2022-11-16 16:22:32,117 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a2e7ad-cbec-46fb-8f46-1228591dd582/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[380067,380080] [2022-11-16 16:22:32,117 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a2e7ad-cbec-46fb-8f46-1228591dd582/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[380231,380244] [2022-11-16 16:22:32,118 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a2e7ad-cbec-46fb-8f46-1228591dd582/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[380396,380409] [2022-11-16 16:22:32,119 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a2e7ad-cbec-46fb-8f46-1228591dd582/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[380561,380574] [2022-11-16 16:22:32,119 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a2e7ad-cbec-46fb-8f46-1228591dd582/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[380727,380740] [2022-11-16 16:22:32,119 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a2e7ad-cbec-46fb-8f46-1228591dd582/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[380892,380905] [2022-11-16 16:22:32,120 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a2e7ad-cbec-46fb-8f46-1228591dd582/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[381059,381072] [2022-11-16 16:22:32,120 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a2e7ad-cbec-46fb-8f46-1228591dd582/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[381219,381232] [2022-11-16 16:22:32,121 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a2e7ad-cbec-46fb-8f46-1228591dd582/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[381381,381394] [2022-11-16 16:22:32,121 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a2e7ad-cbec-46fb-8f46-1228591dd582/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[381540,381553] [2022-11-16 16:22:32,122 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a2e7ad-cbec-46fb-8f46-1228591dd582/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[381686,381699] [2022-11-16 16:22:32,122 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a2e7ad-cbec-46fb-8f46-1228591dd582/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[381829,381842] [2022-11-16 16:22:32,123 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a2e7ad-cbec-46fb-8f46-1228591dd582/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[381973,381986] [2022-11-16 16:22:32,123 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a2e7ad-cbec-46fb-8f46-1228591dd582/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[382116,382129] [2022-11-16 16:22:32,124 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a2e7ad-cbec-46fb-8f46-1228591dd582/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[382260,382273] [2022-11-16 16:22:32,124 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a2e7ad-cbec-46fb-8f46-1228591dd582/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[382401,382414] [2022-11-16 16:22:32,125 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a2e7ad-cbec-46fb-8f46-1228591dd582/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[382539,382552] [2022-11-16 16:22:32,125 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a2e7ad-cbec-46fb-8f46-1228591dd582/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[382697,382710] [2022-11-16 16:22:32,126 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a2e7ad-cbec-46fb-8f46-1228591dd582/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[382856,382869] [2022-11-16 16:22:32,126 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a2e7ad-cbec-46fb-8f46-1228591dd582/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[383012,383025] [2022-11-16 16:22:32,127 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a2e7ad-cbec-46fb-8f46-1228591dd582/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[383161,383174] [2022-11-16 16:22:32,127 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a2e7ad-cbec-46fb-8f46-1228591dd582/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[383313,383326] [2022-11-16 16:22:32,128 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a2e7ad-cbec-46fb-8f46-1228591dd582/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[383464,383477] [2022-11-16 16:22:32,128 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a2e7ad-cbec-46fb-8f46-1228591dd582/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[383613,383626] [2022-11-16 16:22:32,129 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a2e7ad-cbec-46fb-8f46-1228591dd582/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[383765,383778] [2022-11-16 16:22:32,132 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a2e7ad-cbec-46fb-8f46-1228591dd582/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[383913,383926] [2022-11-16 16:22:32,133 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a2e7ad-cbec-46fb-8f46-1228591dd582/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[384066,384079] [2022-11-16 16:22:32,134 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a2e7ad-cbec-46fb-8f46-1228591dd582/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[384217,384230] [2022-11-16 16:22:32,135 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a2e7ad-cbec-46fb-8f46-1228591dd582/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[384367,384380] [2022-11-16 16:22:32,135 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a2e7ad-cbec-46fb-8f46-1228591dd582/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[384514,384527] [2022-11-16 16:22:32,136 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a2e7ad-cbec-46fb-8f46-1228591dd582/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[384665,384678] [2022-11-16 16:22:32,136 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a2e7ad-cbec-46fb-8f46-1228591dd582/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[384816,384829] [2022-11-16 16:22:32,137 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a2e7ad-cbec-46fb-8f46-1228591dd582/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[384964,384977] [2022-11-16 16:22:32,138 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a2e7ad-cbec-46fb-8f46-1228591dd582/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[385130,385143] [2022-11-16 16:22:32,139 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a2e7ad-cbec-46fb-8f46-1228591dd582/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[385299,385312] [2022-11-16 16:22:32,139 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a2e7ad-cbec-46fb-8f46-1228591dd582/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[385466,385479] [2022-11-16 16:22:32,140 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a2e7ad-cbec-46fb-8f46-1228591dd582/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[385634,385647] [2022-11-16 16:22:32,140 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a2e7ad-cbec-46fb-8f46-1228591dd582/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[385784,385797] [2022-11-16 16:22:32,142 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a2e7ad-cbec-46fb-8f46-1228591dd582/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[385931,385944] [2022-11-16 16:22:32,143 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a2e7ad-cbec-46fb-8f46-1228591dd582/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[386092,386105] [2022-11-16 16:22:32,144 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a2e7ad-cbec-46fb-8f46-1228591dd582/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[386262,386275] [2022-11-16 16:22:32,145 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a2e7ad-cbec-46fb-8f46-1228591dd582/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[386424,386437] [2022-11-16 16:22:32,163 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 16:22:32,189 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 16:22:32,588 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a2e7ad-cbec-46fb-8f46-1228591dd582/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[373036,373049] [2022-11-16 16:22:32,588 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a2e7ad-cbec-46fb-8f46-1228591dd582/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[373181,373194] [2022-11-16 16:22:32,589 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a2e7ad-cbec-46fb-8f46-1228591dd582/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[373327,373340] [2022-11-16 16:22:32,590 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a2e7ad-cbec-46fb-8f46-1228591dd582/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[373492,373505] [2022-11-16 16:22:32,590 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a2e7ad-cbec-46fb-8f46-1228591dd582/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[373650,373663] [2022-11-16 16:22:32,591 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a2e7ad-cbec-46fb-8f46-1228591dd582/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[373808,373821] [2022-11-16 16:22:32,591 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a2e7ad-cbec-46fb-8f46-1228591dd582/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[373966,373979] [2022-11-16 16:22:32,592 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a2e7ad-cbec-46fb-8f46-1228591dd582/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[374126,374139] [2022-11-16 16:22:32,592 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a2e7ad-cbec-46fb-8f46-1228591dd582/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[374285,374298] [2022-11-16 16:22:32,593 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a2e7ad-cbec-46fb-8f46-1228591dd582/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[374424,374437] [2022-11-16 16:22:32,593 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a2e7ad-cbec-46fb-8f46-1228591dd582/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[374566,374579] [2022-11-16 16:22:32,594 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a2e7ad-cbec-46fb-8f46-1228591dd582/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[374715,374728] [2022-11-16 16:22:32,594 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a2e7ad-cbec-46fb-8f46-1228591dd582/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[374854,374867] [2022-11-16 16:22:32,595 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a2e7ad-cbec-46fb-8f46-1228591dd582/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[375009,375022] [2022-11-16 16:22:32,595 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a2e7ad-cbec-46fb-8f46-1228591dd582/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[375169,375182] [2022-11-16 16:22:32,596 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a2e7ad-cbec-46fb-8f46-1228591dd582/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[375320,375333] [2022-11-16 16:22:32,596 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a2e7ad-cbec-46fb-8f46-1228591dd582/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[375471,375484] [2022-11-16 16:22:32,597 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a2e7ad-cbec-46fb-8f46-1228591dd582/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[375623,375636] [2022-11-16 16:22:32,597 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a2e7ad-cbec-46fb-8f46-1228591dd582/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[375772,375785] [2022-11-16 16:22:32,598 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a2e7ad-cbec-46fb-8f46-1228591dd582/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[375920,375933] [2022-11-16 16:22:32,598 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a2e7ad-cbec-46fb-8f46-1228591dd582/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[376077,376090] [2022-11-16 16:22:32,599 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a2e7ad-cbec-46fb-8f46-1228591dd582/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[376226,376239] [2022-11-16 16:22:32,599 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a2e7ad-cbec-46fb-8f46-1228591dd582/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[376382,376395] [2022-11-16 16:22:32,600 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a2e7ad-cbec-46fb-8f46-1228591dd582/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[376535,376548] [2022-11-16 16:22:32,600 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a2e7ad-cbec-46fb-8f46-1228591dd582/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[376681,376694] [2022-11-16 16:22:32,601 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a2e7ad-cbec-46fb-8f46-1228591dd582/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[376824,376837] [2022-11-16 16:22:32,601 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a2e7ad-cbec-46fb-8f46-1228591dd582/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[376976,376989] [2022-11-16 16:22:32,656 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a2e7ad-cbec-46fb-8f46-1228591dd582/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[377122,377135] [2022-11-16 16:22:32,656 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a2e7ad-cbec-46fb-8f46-1228591dd582/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[377267,377280] [2022-11-16 16:22:32,657 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a2e7ad-cbec-46fb-8f46-1228591dd582/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[377421,377434] [2022-11-16 16:22:32,657 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a2e7ad-cbec-46fb-8f46-1228591dd582/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[377572,377585] [2022-11-16 16:22:32,657 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a2e7ad-cbec-46fb-8f46-1228591dd582/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[377727,377740] [2022-11-16 16:22:32,658 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a2e7ad-cbec-46fb-8f46-1228591dd582/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[377879,377892] [2022-11-16 16:22:32,658 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a2e7ad-cbec-46fb-8f46-1228591dd582/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[378034,378047] [2022-11-16 16:22:32,658 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a2e7ad-cbec-46fb-8f46-1228591dd582/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[378198,378211] [2022-11-16 16:22:32,659 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a2e7ad-cbec-46fb-8f46-1228591dd582/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[378354,378367] [2022-11-16 16:22:32,659 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a2e7ad-cbec-46fb-8f46-1228591dd582/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[378518,378531] [2022-11-16 16:22:32,659 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a2e7ad-cbec-46fb-8f46-1228591dd582/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[378660,378673] [2022-11-16 16:22:32,660 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a2e7ad-cbec-46fb-8f46-1228591dd582/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[378818,378831] [2022-11-16 16:22:32,660 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a2e7ad-cbec-46fb-8f46-1228591dd582/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[378985,378998] [2022-11-16 16:22:32,660 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a2e7ad-cbec-46fb-8f46-1228591dd582/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[379144,379157] [2022-11-16 16:22:32,661 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a2e7ad-cbec-46fb-8f46-1228591dd582/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[379303,379316] [2022-11-16 16:22:32,661 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a2e7ad-cbec-46fb-8f46-1228591dd582/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[379452,379465] [2022-11-16 16:22:32,661 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a2e7ad-cbec-46fb-8f46-1228591dd582/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[379599,379612] [2022-11-16 16:22:32,662 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a2e7ad-cbec-46fb-8f46-1228591dd582/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[379738,379751] [2022-11-16 16:22:32,662 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a2e7ad-cbec-46fb-8f46-1228591dd582/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[379901,379914] [2022-11-16 16:22:32,662 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a2e7ad-cbec-46fb-8f46-1228591dd582/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[380067,380080] [2022-11-16 16:22:32,665 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a2e7ad-cbec-46fb-8f46-1228591dd582/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[380231,380244] [2022-11-16 16:22:32,666 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a2e7ad-cbec-46fb-8f46-1228591dd582/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[380396,380409] [2022-11-16 16:22:32,666 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a2e7ad-cbec-46fb-8f46-1228591dd582/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[380561,380574] [2022-11-16 16:22:32,667 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a2e7ad-cbec-46fb-8f46-1228591dd582/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[380727,380740] [2022-11-16 16:22:32,667 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a2e7ad-cbec-46fb-8f46-1228591dd582/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[380892,380905] [2022-11-16 16:22:32,668 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a2e7ad-cbec-46fb-8f46-1228591dd582/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[381059,381072] [2022-11-16 16:22:32,669 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a2e7ad-cbec-46fb-8f46-1228591dd582/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[381219,381232] [2022-11-16 16:22:32,671 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a2e7ad-cbec-46fb-8f46-1228591dd582/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[381381,381394] [2022-11-16 16:22:32,672 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a2e7ad-cbec-46fb-8f46-1228591dd582/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[381540,381553] [2022-11-16 16:22:32,675 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a2e7ad-cbec-46fb-8f46-1228591dd582/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[381686,381699] [2022-11-16 16:22:32,676 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a2e7ad-cbec-46fb-8f46-1228591dd582/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[381829,381842] [2022-11-16 16:22:32,676 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a2e7ad-cbec-46fb-8f46-1228591dd582/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[381973,381986] [2022-11-16 16:22:32,677 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a2e7ad-cbec-46fb-8f46-1228591dd582/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[382116,382129] [2022-11-16 16:22:32,678 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a2e7ad-cbec-46fb-8f46-1228591dd582/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[382260,382273] [2022-11-16 16:22:32,679 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a2e7ad-cbec-46fb-8f46-1228591dd582/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[382401,382414] [2022-11-16 16:22:32,680 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a2e7ad-cbec-46fb-8f46-1228591dd582/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[382539,382552] [2022-11-16 16:22:32,681 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a2e7ad-cbec-46fb-8f46-1228591dd582/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[382697,382710] [2022-11-16 16:22:32,681 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a2e7ad-cbec-46fb-8f46-1228591dd582/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[382856,382869] [2022-11-16 16:22:32,687 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a2e7ad-cbec-46fb-8f46-1228591dd582/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[383012,383025] [2022-11-16 16:22:32,689 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a2e7ad-cbec-46fb-8f46-1228591dd582/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[383161,383174] [2022-11-16 16:22:32,693 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a2e7ad-cbec-46fb-8f46-1228591dd582/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[383313,383326] [2022-11-16 16:22:32,695 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a2e7ad-cbec-46fb-8f46-1228591dd582/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[383464,383477] [2022-11-16 16:22:32,697 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a2e7ad-cbec-46fb-8f46-1228591dd582/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[383613,383626] [2022-11-16 16:22:32,698 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a2e7ad-cbec-46fb-8f46-1228591dd582/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[383765,383778] [2022-11-16 16:22:32,699 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a2e7ad-cbec-46fb-8f46-1228591dd582/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[383913,383926] [2022-11-16 16:22:32,699 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a2e7ad-cbec-46fb-8f46-1228591dd582/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[384066,384079] [2022-11-16 16:22:32,700 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a2e7ad-cbec-46fb-8f46-1228591dd582/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[384217,384230] [2022-11-16 16:22:32,700 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a2e7ad-cbec-46fb-8f46-1228591dd582/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[384367,384380] [2022-11-16 16:22:32,701 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a2e7ad-cbec-46fb-8f46-1228591dd582/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[384514,384527] [2022-11-16 16:22:32,701 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a2e7ad-cbec-46fb-8f46-1228591dd582/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[384665,384678] [2022-11-16 16:22:32,702 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a2e7ad-cbec-46fb-8f46-1228591dd582/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[384816,384829] [2022-11-16 16:22:32,702 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a2e7ad-cbec-46fb-8f46-1228591dd582/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[384964,384977] [2022-11-16 16:22:32,703 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a2e7ad-cbec-46fb-8f46-1228591dd582/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[385130,385143] [2022-11-16 16:22:32,704 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a2e7ad-cbec-46fb-8f46-1228591dd582/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[385299,385312] [2022-11-16 16:22:32,705 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a2e7ad-cbec-46fb-8f46-1228591dd582/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[385466,385479] [2022-11-16 16:22:32,706 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a2e7ad-cbec-46fb-8f46-1228591dd582/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[385634,385647] [2022-11-16 16:22:32,707 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a2e7ad-cbec-46fb-8f46-1228591dd582/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[385784,385797] [2022-11-16 16:22:32,707 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a2e7ad-cbec-46fb-8f46-1228591dd582/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[385931,385944] [2022-11-16 16:22:32,707 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a2e7ad-cbec-46fb-8f46-1228591dd582/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[386092,386105] [2022-11-16 16:22:32,708 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a2e7ad-cbec-46fb-8f46-1228591dd582/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[386262,386275] [2022-11-16 16:22:32,708 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a2e7ad-cbec-46fb-8f46-1228591dd582/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[386424,386437] [2022-11-16 16:22:32,717 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 16:22:32,972 INFO L208 MainTranslator]: Completed translation [2022-11-16 16:22:32,973 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:22:32 WrapperNode [2022-11-16 16:22:32,973 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 16:22:32,975 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 16:22:32,975 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 16:22:32,975 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 16:22:32,985 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:22:32" (1/1) ... [2022-11-16 16:22:33,142 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:22:32" (1/1) ... [2022-11-16 16:22:33,413 INFO L138 Inliner]: procedures = 675, calls = 2887, calls flagged for inlining = 316, calls inlined = 216, statements flattened = 5834 [2022-11-16 16:22:33,413 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 16:22:33,414 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 16:22:33,414 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 16:22:33,415 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 16:22:33,426 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:22:32" (1/1) ... [2022-11-16 16:22:33,426 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:22:32" (1/1) ... [2022-11-16 16:22:33,478 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:22:32" (1/1) ... [2022-11-16 16:22:33,490 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:22:32" (1/1) ... [2022-11-16 16:22:33,694 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:22:32" (1/1) ... [2022-11-16 16:22:33,714 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:22:32" (1/1) ... [2022-11-16 16:22:33,738 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:22:32" (1/1) ... [2022-11-16 16:22:33,752 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:22:32" (1/1) ... [2022-11-16 16:22:33,788 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 16:22:33,789 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 16:22:33,789 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 16:22:33,789 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 16:22:33,790 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:22:32" (1/1) ... [2022-11-16 16:22:33,801 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 16:22:33,815 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a2e7ad-cbec-46fb-8f46-1228591dd582/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 16:22:33,834 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a2e7ad-cbec-46fb-8f46-1228591dd582/bin/utaipan-Xvt2sAort0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 16:22:33,863 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a2e7ad-cbec-46fb-8f46-1228591dd582/bin/utaipan-Xvt2sAort0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 16:22:33,900 INFO L130 BoogieDeclarations]: Found specification of procedure xenbus_frontend_closed [2022-11-16 16:22:33,900 INFO L138 BoogieDeclarations]: Found implementation of procedure xenbus_frontend_closed [2022-11-16 16:22:33,900 INFO L130 BoogieDeclarations]: Found specification of procedure strncmp [2022-11-16 16:22:33,900 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_coherent_check_final_state [2022-11-16 16:22:33,901 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_coherent_check_final_state [2022-11-16 16:22:33,902 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-16 16:22:33,902 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-16 16:22:33,902 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-16 16:22:33,902 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-16 16:22:33,902 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_mmc_sdio_func_check_final_state [2022-11-16 16:22:33,904 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_mmc_sdio_func_check_final_state [2022-11-16 16:22:33,905 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_genhd_del_gendisk [2022-11-16 16:22:33,905 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_genhd_del_gendisk [2022-11-16 16:22:33,905 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-11-16 16:22:33,906 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-11-16 16:22:33,906 INFO L130 BoogieDeclarations]: Found specification of procedure submit_bio [2022-11-16 16:22:33,906 INFO L138 BoogieDeclarations]: Found implementation of procedure submit_bio [2022-11-16 16:22:33,906 INFO L130 BoogieDeclarations]: Found specification of procedure queue_flag_set_unlocked [2022-11-16 16:22:33,906 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_flag_set_unlocked [2022-11-16 16:22:33,906 INFO L130 BoogieDeclarations]: Found specification of procedure gnttab_cancel_free_callback [2022-11-16 16:22:33,907 INFO L138 BoogieDeclarations]: Found implementation of procedure gnttab_cancel_free_callback [2022-11-16 16:22:33,907 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_arch_io_check_final_state [2022-11-16 16:22:33,907 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_arch_io_check_final_state [2022-11-16 16:22:33,907 INFO L130 BoogieDeclarations]: Found specification of procedure gnttab_end_foreign_access [2022-11-16 16:22:33,907 INFO L138 BoogieDeclarations]: Found implementation of procedure gnttab_end_foreign_access [2022-11-16 16:22:33,908 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_module_check_final_state [2022-11-16 16:22:33,908 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_module_check_final_state [2022-11-16 16:22:33,908 INFO L130 BoogieDeclarations]: Found specification of procedure do_blkif_request [2022-11-16 16:22:33,908 INFO L138 BoogieDeclarations]: Found implementation of procedure do_blkif_request [2022-11-16 16:22:33,908 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_pages [2022-11-16 16:22:33,908 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_pages [2022-11-16 16:22:33,909 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-16 16:22:33,909 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-11-16 16:22:33,909 INFO L130 BoogieDeclarations]: Found specification of procedure talk_to_blkback [2022-11-16 16:22:33,909 INFO L138 BoogieDeclarations]: Found implementation of procedure talk_to_blkback [2022-11-16 16:22:33,909 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-16 16:22:33,910 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-16 16:22:33,910 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_queue_check_final_state [2022-11-16 16:22:33,910 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_queue_check_final_state [2022-11-16 16:22:33,910 INFO L130 BoogieDeclarations]: Found specification of procedure blkfront_setup_indirect [2022-11-16 16:22:33,910 INFO L138 BoogieDeclarations]: Found implementation of procedure blkfront_setup_indirect [2022-11-16 16:22:33,910 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 16:22:33,911 INFO L130 BoogieDeclarations]: Found specification of procedure pfn_to_mfn [2022-11-16 16:22:33,911 INFO L138 BoogieDeclarations]: Found implementation of procedure pfn_to_mfn [2022-11-16 16:22:33,911 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2022-11-16 16:22:33,912 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2022-11-16 16:22:33,912 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_request_check_final_state [2022-11-16 16:22:33,913 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_request_check_final_state [2022-11-16 16:22:33,913 INFO L130 BoogieDeclarations]: Found specification of procedure xlvbd_release_gendisk [2022-11-16 16:22:33,913 INFO L138 BoogieDeclarations]: Found implementation of procedure xlvbd_release_gendisk [2022-11-16 16:22:33,913 INFO L130 BoogieDeclarations]: Found specification of procedure xlbd_release_minors [2022-11-16 16:22:33,913 INFO L138 BoogieDeclarations]: Found implementation of procedure xlbd_release_minors [2022-11-16 16:22:33,914 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-16 16:22:33,914 INFO L130 BoogieDeclarations]: Found specification of procedure xlvbd_flush [2022-11-16 16:22:33,914 INFO L138 BoogieDeclarations]: Found implementation of procedure xlvbd_flush [2022-11-16 16:22:33,915 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2022-11-16 16:22:33,915 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2022-11-16 16:22:33,915 INFO L130 BoogieDeclarations]: Found specification of procedure sg_page [2022-11-16 16:22:33,915 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_page [2022-11-16 16:22:33,915 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-16 16:22:33,916 INFO L130 BoogieDeclarations]: Found specification of procedure xenbus_switch_state [2022-11-16 16:22:33,916 INFO L138 BoogieDeclarations]: Found implementation of procedure xenbus_switch_state [2022-11-16 16:22:33,916 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_in_interrupt_context [2022-11-16 16:22:33,917 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_in_interrupt_context [2022-11-16 16:22:33,922 INFO L130 BoogieDeclarations]: Found specification of procedure flush_work [2022-11-16 16:22:33,922 INFO L138 BoogieDeclarations]: Found implementation of procedure flush_work [2022-11-16 16:22:33,922 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-11-16 16:22:33,922 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-11-16 16:22:33,923 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irq_112 [2022-11-16 16:22:33,923 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irq_112 [2022-11-16 16:22:33,923 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_bh_check_final_state [2022-11-16 16:22:33,923 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_bh_check_final_state [2022-11-16 16:22:33,923 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-16 16:22:33,924 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_genhd_check_final_state [2022-11-16 16:22:33,925 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_genhd_check_final_state [2022-11-16 16:22:33,926 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_after_alloc [2022-11-16 16:22:33,926 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_after_alloc [2022-11-16 16:22:33,926 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-16 16:22:33,926 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-16 16:22:33,926 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_register_reset_error_counter [2022-11-16 16:22:33,927 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_register_reset_error_counter [2022-11-16 16:22:33,927 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-11-16 16:22:33,927 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-11-16 16:22:33,927 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-11-16 16:22:33,927 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-11-16 16:22:33,927 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_blkdev [2022-11-16 16:22:33,928 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_blkdev [2022-11-16 16:22:33,928 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_lib_idr_check_final_state [2022-11-16 16:22:33,928 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_lib_idr_check_final_state [2022-11-16 16:22:33,928 INFO L130 BoogieDeclarations]: Found specification of procedure get_grant [2022-11-16 16:22:33,928 INFO L138 BoogieDeclarations]: Found implementation of procedure get_grant [2022-11-16 16:22:33,928 INFO L130 BoogieDeclarations]: Found specification of procedure sg_next [2022-11-16 16:22:33,929 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_next [2022-11-16 16:22:33,929 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_srcu_check_final_state [2022-11-16 16:22:33,929 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_srcu_check_final_state [2022-11-16 16:22:33,929 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-16 16:22:33,929 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_calloc [2022-11-16 16:22:33,929 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_calloc [2022-11-16 16:22:33,930 INFO L130 BoogieDeclarations]: Found specification of procedure get_phys_to_machine [2022-11-16 16:22:33,930 INFO L138 BoogieDeclarations]: Found implementation of procedure get_phys_to_machine [2022-11-16 16:22:33,930 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2022-11-16 16:22:33,930 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2022-11-16 16:22:33,930 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 16:22:33,930 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_lock_bd_mutex_of_block_device [2022-11-16 16:22:33,931 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_lock_bd_mutex_of_block_device [2022-11-16 16:22:33,931 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-16 16:22:33,931 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-16 16:22:33,931 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-16 16:22:33,931 INFO L130 BoogieDeclarations]: Found specification of procedure __blk_end_request_all [2022-11-16 16:22:33,931 INFO L138 BoogieDeclarations]: Found implementation of procedure __blk_end_request_all [2022-11-16 16:22:33,932 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-11-16 16:22:33,932 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2022-11-16 16:22:33,932 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2022-11-16 16:22:33,932 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_spinlock_spin_unlock_io_lock_of_blkfront_info [2022-11-16 16:22:33,932 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_spinlock_spin_unlock_io_lock_of_blkfront_info [2022-11-16 16:22:33,933 INFO L130 BoogieDeclarations]: Found specification of procedure kmap_atomic [2022-11-16 16:22:33,933 INFO L138 BoogieDeclarations]: Found implementation of procedure kmap_atomic [2022-11-16 16:22:33,933 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_blkfront_mutex [2022-11-16 16:22:33,933 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_blkfront_mutex [2022-11-16 16:22:33,934 INFO L130 BoogieDeclarations]: Found specification of procedure blkif_free [2022-11-16 16:22:33,934 INFO L138 BoogieDeclarations]: Found implementation of procedure blkif_free [2022-11-16 16:22:33,934 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_register_reset_error_counter [2022-11-16 16:22:33,934 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_register_reset_error_counter [2022-11-16 16:22:33,935 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2022-11-16 16:22:33,935 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2022-11-16 16:22:33,935 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 16:22:33,935 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 16:22:33,935 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_lock_mutex_of_blkfront_info [2022-11-16 16:22:33,935 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_lock_mutex_of_blkfront_info [2022-11-16 16:22:33,936 INFO L130 BoogieDeclarations]: Found specification of procedure blk_stop_queue [2022-11-16 16:22:33,936 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_stop_queue [2022-11-16 16:22:33,936 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_mutex_of_blkfront_info [2022-11-16 16:22:33,936 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_mutex_of_blkfront_info [2022-11-16 16:22:33,936 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-16 16:22:33,936 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-16 16:22:33,937 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-16 16:22:33,937 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-16 16:22:33,937 INFO L130 BoogieDeclarations]: Found specification of procedure bdput [2022-11-16 16:22:33,937 INFO L138 BoogieDeclarations]: Found implementation of procedure bdput [2022-11-16 16:22:33,937 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-11-16 16:22:33,937 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-11-16 16:22:33,937 INFO L130 BoogieDeclarations]: Found specification of procedure del_gendisk [2022-11-16 16:22:33,938 INFO L138 BoogieDeclarations]: Found implementation of procedure del_gendisk [2022-11-16 16:22:33,938 INFO L130 BoogieDeclarations]: Found specification of procedure xenbus_transaction_end [2022-11-16 16:22:33,938 INFO L138 BoogieDeclarations]: Found implementation of procedure xenbus_transaction_end [2022-11-16 16:22:33,938 INFO L130 BoogieDeclarations]: Found specification of procedure set_capacity [2022-11-16 16:22:33,938 INFO L138 BoogieDeclarations]: Found implementation of procedure set_capacity [2022-11-16 16:22:33,938 INFO L130 BoogieDeclarations]: Found specification of procedure blk_rq_sectors [2022-11-16 16:22:33,939 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_rq_sectors [2022-11-16 16:22:33,939 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-16 16:22:33,939 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-16 16:22:33,939 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_sock_check_final_state [2022-11-16 16:22:33,939 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_sock_check_final_state [2022-11-16 16:22:33,939 INFO L130 BoogieDeclarations]: Found specification of procedure blk_rq_pos [2022-11-16 16:22:33,940 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_rq_pos [2022-11-16 16:22:33,940 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_gadget_check_final_state [2022-11-16 16:22:33,940 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_gadget_check_final_state [2022-11-16 16:22:33,940 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 16:22:33,940 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-11-16 16:22:33,940 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-11-16 16:22:33,940 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_fs_sysfs_check_final_state [2022-11-16 16:22:33,941 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_fs_sysfs_check_final_state [2022-11-16 16:22:33,941 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-16 16:22:33,941 INFO L130 BoogieDeclarations]: Found specification of procedure __free_pages [2022-11-16 16:22:33,941 INFO L138 BoogieDeclarations]: Found implementation of procedure __free_pages [2022-11-16 16:22:33,941 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_107 [2022-11-16 16:22:33,941 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_107 [2022-11-16 16:22:33,941 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2022-11-16 16:22:33,942 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2022-11-16 16:22:33,942 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-16 16:22:33,942 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_bd_mutex_of_block_device [2022-11-16 16:22:33,942 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_bd_mutex_of_block_device [2022-11-16 16:22:33,942 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-11-16 16:22:33,942 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-11-16 16:22:33,943 INFO L130 BoogieDeclarations]: Found specification of procedure get_capacity [2022-11-16 16:22:33,943 INFO L138 BoogieDeclarations]: Found implementation of procedure get_capacity [2022-11-16 16:22:33,943 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_rtnetlink_check_final_state [2022-11-16 16:22:33,943 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_rtnetlink_check_final_state [2022-11-16 16:22:33,943 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_lock_blkfront_mutex [2022-11-16 16:22:33,943 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_lock_blkfront_mutex [2022-11-16 16:22:33,943 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-11-16 16:22:33,944 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-11-16 16:22:33,944 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-11-16 16:22:33,944 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-11-16 16:22:33,944 INFO L130 BoogieDeclarations]: Found specification of procedure blk_requeue_request [2022-11-16 16:22:33,944 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_requeue_request [2022-11-16 16:22:33,944 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2022-11-16 16:22:33,944 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2022-11-16 16:22:33,945 INFO L130 BoogieDeclarations]: Found specification of procedure bio_segments [2022-11-16 16:22:33,945 INFO L138 BoogieDeclarations]: Found implementation of procedure bio_segments [2022-11-16 16:22:33,945 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_check_final_state [2022-11-16 16:22:33,945 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_check_final_state [2022-11-16 16:22:33,945 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2022-11-16 16:22:33,945 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2022-11-16 16:22:33,945 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_urb_check_final_state [2022-11-16 16:22:33,946 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_urb_check_final_state [2022-11-16 16:22:33,946 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_linux_kernel_locking_spinlock_spin_lock [2022-11-16 16:22:33,946 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_linux_kernel_locking_spinlock_spin_lock [2022-11-16 16:22:33,946 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_spinlock_spin_lock_io_lock_of_blkfront_info [2022-11-16 16:22:33,946 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_spinlock_spin_lock_io_lock_of_blkfront_info [2022-11-16 16:22:33,946 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_rwlock_check_final_state [2022-11-16 16:22:33,947 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_rwlock_check_final_state [2022-11-16 16:22:33,947 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-16 16:22:33,947 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-16 16:22:33,947 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2022-11-16 16:22:33,947 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2022-11-16 16:22:33,947 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-16 16:22:33,947 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_fs_char_dev_check_final_state [2022-11-16 16:22:33,948 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_fs_char_dev_check_final_state [2022-11-16 16:22:33,948 INFO L130 BoogieDeclarations]: Found specification of procedure kick_pending_request_queues [2022-11-16 16:22:33,948 INFO L138 BoogieDeclarations]: Found implementation of procedure kick_pending_request_queues [2022-11-16 16:22:33,948 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-16 16:22:33,948 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-16 16:22:33,948 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_96 [2022-11-16 16:22:33,948 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_96 [2022-11-16 16:22:33,949 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_drivers_base_class_check_final_state [2022-11-16 16:22:33,949 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_drivers_base_class_check_final_state [2022-11-16 16:22:33,949 INFO L130 BoogieDeclarations]: Found specification of procedure strrchr [2022-11-16 16:22:33,949 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_97 [2022-11-16 16:22:33,949 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_97 [2022-11-16 16:22:33,949 INFO L130 BoogieDeclarations]: Found specification of procedure bdget_disk [2022-11-16 16:22:33,949 INFO L138 BoogieDeclarations]: Found implementation of procedure bdget_disk [2022-11-16 16:22:33,950 INFO L130 BoogieDeclarations]: Found specification of procedure bio_list_merge [2022-11-16 16:22:33,950 INFO L138 BoogieDeclarations]: Found implementation of procedure bio_list_merge [2022-11-16 16:22:33,950 INFO L130 BoogieDeclarations]: Found specification of procedure blk_queue_max_segments [2022-11-16 16:22:33,950 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_queue_max_segments [2022-11-16 16:22:33,950 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-11-16 16:22:33,950 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-11-16 16:22:33,950 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_sched_check_final_state [2022-11-16 16:22:33,951 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_sched_check_final_state [2022-11-16 16:22:33,951 INFO L130 BoogieDeclarations]: Found specification of procedure encode_disk_name [2022-11-16 16:22:33,951 INFO L138 BoogieDeclarations]: Found implementation of procedure encode_disk_name [2022-11-16 16:22:33,951 INFO L130 BoogieDeclarations]: Found specification of procedure __kunmap_atomic [2022-11-16 16:22:33,951 INFO L138 BoogieDeclarations]: Found implementation of procedure __kunmap_atomic [2022-11-16 16:22:33,951 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 16:22:33,951 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_irq_111 [2022-11-16 16:22:33,952 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_irq_111 [2022-11-16 16:22:34,859 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 16:22:34,867 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 16:22:35,530 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-16 16:22:53,933 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 16:22:55,749 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 16:22:55,750 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-11-16 16:22:55,755 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 04:22:55 BoogieIcfgContainer [2022-11-16 16:22:55,755 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 16:22:55,758 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 16:22:55,758 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 16:22:55,763 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 16:22:55,763 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 04:22:27" (1/3) ... [2022-11-16 16:22:55,765 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@647aac1b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 04:22:55, skipping insertion in model container [2022-11-16 16:22:55,765 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:22:32" (2/3) ... [2022-11-16 16:22:55,767 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@647aac1b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 04:22:55, skipping insertion in model container [2022-11-16 16:22:55,767 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 04:22:55" (3/3) ... [2022-11-16 16:22:55,774 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i [2022-11-16 16:22:55,803 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 16:22:55,804 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 34 error locations. [2022-11-16 16:22:55,905 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 16:22:55,912 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;@744d99a7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 16:22:55,913 INFO L358 AbstractCegarLoop]: Starting to check reachability of 34 error locations. [2022-11-16 16:22:55,922 INFO L276 IsEmpty]: Start isEmpty. Operand has 1266 states, 749 states have (on average 1.341789052069426) internal successors, (1005), 809 states have internal predecessors, (1005), 374 states have call successors, (374), 109 states have call predecessors, (374), 108 states have return successors, (370), 368 states have call predecessors, (370), 370 states have call successors, (370) [2022-11-16 16:22:55,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-11-16 16:22:55,934 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 16:22:55,935 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 16:22:55,935 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 32 more)] === [2022-11-16 16:22:55,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 16:22:55,942 INFO L85 PathProgramCache]: Analyzing trace with hash -1419607478, now seen corresponding path program 1 times [2022-11-16 16:22:55,954 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 16:22:55,955 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2040381923] [2022-11-16 16:22:55,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:22:55,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 16:22:56,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 16:22:57,160 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-16 16:22:57,161 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 16:22:57,161 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2040381923] [2022-11-16 16:22:57,164 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2040381923] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 16:22:57,165 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 16:22:57,165 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 16:22:57,167 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [495779837] [2022-11-16 16:22:57,168 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 16:22:57,174 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 16:22:57,174 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 16:22:57,216 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 16:22:57,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 16:22:57,222 INFO L87 Difference]: Start difference. First operand has 1266 states, 749 states have (on average 1.341789052069426) internal successors, (1005), 809 states have internal predecessors, (1005), 374 states have call successors, (374), 109 states have call predecessors, (374), 108 states have return successors, (370), 368 states have call predecessors, (370), 370 states have call successors, (370) Second operand has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-11-16 16:23:00,938 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 [] [2022-11-16 16:23:04,078 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:23:06,701 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.70s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:23:09,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 16:23:09,095 INFO L93 Difference]: Finished difference Result 2690 states and 3820 transitions. [2022-11-16 16:23:09,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 16:23:09,099 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 38 [2022-11-16 16:23:09,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 16:23:09,129 INFO L225 Difference]: With dead ends: 2690 [2022-11-16 16:23:09,129 INFO L226 Difference]: Without dead ends: 1436 [2022-11-16 16:23:09,148 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 [2022-11-16 16:23:09,152 INFO L413 NwaCegarLoop]: 1507 mSDtfsCounter, 1694 mSDsluCounter, 1702 mSDsCounter, 0 mSdLazyCounter, 557 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1697 SdHoareTripleChecker+Valid, 3209 SdHoareTripleChecker+Invalid, 559 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 557 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.5s IncrementalHoareTripleChecker+Time [2022-11-16 16:23:09,153 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1697 Valid, 3209 Invalid, 559 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 557 Invalid, 2 Unknown, 0 Unchecked, 11.5s Time] [2022-11-16 16:23:09,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1436 states. [2022-11-16 16:23:09,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1436 to 1432. [2022-11-16 16:23:09,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1432 states, 849 states have (on average 1.2862190812720848) internal successors, (1092), 912 states have internal predecessors, (1092), 423 states have call successors, (423), 128 states have call predecessors, (423), 127 states have return successors, (421), 416 states have call predecessors, (421), 421 states have call successors, (421) [2022-11-16 16:23:09,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1432 states to 1432 states and 1936 transitions. [2022-11-16 16:23:09,354 INFO L78 Accepts]: Start accepts. Automaton has 1432 states and 1936 transitions. Word has length 38 [2022-11-16 16:23:09,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 16:23:09,355 INFO L495 AbstractCegarLoop]: Abstraction has 1432 states and 1936 transitions. [2022-11-16 16:23:09,355 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-11-16 16:23:09,355 INFO L276 IsEmpty]: Start isEmpty. Operand 1432 states and 1936 transitions. [2022-11-16 16:23:09,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-11-16 16:23:09,358 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 16:23:09,359 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 16:23:09,359 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 16:23:09,359 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 32 more)] === [2022-11-16 16:23:09,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 16:23:09,360 INFO L85 PathProgramCache]: Analyzing trace with hash 1442816027, now seen corresponding path program 1 times [2022-11-16 16:23:09,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 16:23:09,361 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1233929786] [2022-11-16 16:23:09,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:23:09,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 16:23:09,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 16:23:09,786 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-16 16:23:09,786 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 16:23:09,786 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1233929786] [2022-11-16 16:23:09,786 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1233929786] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 16:23:09,786 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 16:23:09,787 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 16:23:09,787 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1494077046] [2022-11-16 16:23:09,787 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 16:23:09,788 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 16:23:09,789 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 16:23:09,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 16:23:09,789 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 16:23:09,789 INFO L87 Difference]: Start difference. First operand 1432 states and 1936 transitions. Second operand has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-11-16 16:23:12,681 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:23:16,447 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:23:20,517 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 [] [2022-11-16 16:23:21,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 16:23:21,366 INFO L93 Difference]: Finished difference Result 2486 states and 3356 transitions. [2022-11-16 16:23:21,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 16:23:21,367 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 43 [2022-11-16 16:23:21,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 16:23:21,387 INFO L225 Difference]: With dead ends: 2486 [2022-11-16 16:23:21,387 INFO L226 Difference]: Without dead ends: 2484 [2022-11-16 16:23:21,389 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 [2022-11-16 16:23:21,391 INFO L413 NwaCegarLoop]: 1949 mSDtfsCounter, 1426 mSDsluCounter, 3360 mSDsCounter, 0 mSdLazyCounter, 860 mSolverCounterSat, 2 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1429 SdHoareTripleChecker+Valid, 5309 SdHoareTripleChecker+Invalid, 865 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 860 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.3s IncrementalHoareTripleChecker+Time [2022-11-16 16:23:21,391 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1429 Valid, 5309 Invalid, 865 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 860 Invalid, 3 Unknown, 0 Unchecked, 11.3s Time] [2022-11-16 16:23:21,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2484 states. [2022-11-16 16:23:21,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2484 to 2316. [2022-11-16 16:23:21,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2316 states, 1375 states have (on average 1.2843636363636364) internal successors, (1766), 1462 states have internal predecessors, (1766), 701 states have call successors, (701), 208 states have call predecessors, (701), 207 states have return successors, (708), 686 states have call predecessors, (708), 699 states have call successors, (708) [2022-11-16 16:23:21,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2316 states to 2316 states and 3175 transitions. [2022-11-16 16:23:21,579 INFO L78 Accepts]: Start accepts. Automaton has 2316 states and 3175 transitions. Word has length 43 [2022-11-16 16:23:21,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 16:23:21,580 INFO L495 AbstractCegarLoop]: Abstraction has 2316 states and 3175 transitions. [2022-11-16 16:23:21,580 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-11-16 16:23:21,581 INFO L276 IsEmpty]: Start isEmpty. Operand 2316 states and 3175 transitions. [2022-11-16 16:23:21,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-11-16 16:23:21,593 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 16:23:21,593 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 16:23:21,593 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-16 16:23:21,595 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 32 more)] === [2022-11-16 16:23:21,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 16:23:21,596 INFO L85 PathProgramCache]: Analyzing trace with hash 1510059166, now seen corresponding path program 1 times [2022-11-16 16:23:21,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 16:23:21,597 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [20719618] [2022-11-16 16:23:21,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:23:21,597 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 16:23:21,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 16:23:22,252 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-16 16:23:22,252 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 16:23:22,252 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [20719618] [2022-11-16 16:23:22,252 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [20719618] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 16:23:22,252 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 16:23:22,252 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 16:23:22,253 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1921576362] [2022-11-16 16:23:22,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 16:23:22,253 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 16:23:22,253 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 16:23:22,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 16:23:22,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 16:23:22,254 INFO L87 Difference]: Start difference. First operand 2316 states and 3175 transitions. Second operand has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (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) [2022-11-16 16:23:25,826 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 [] [2022-11-16 16:23:29,044 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:23:32,969 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:23:36,327 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 [] [2022-11-16 16:23:37,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 16:23:37,681 INFO L93 Difference]: Finished difference Result 3512 states and 4799 transitions. [2022-11-16 16:23:37,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 16:23:37,682 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (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 48 [2022-11-16 16:23:37,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 16:23:37,710 INFO L225 Difference]: With dead ends: 3512 [2022-11-16 16:23:37,710 INFO L226 Difference]: Without dead ends: 3510 [2022-11-16 16:23:37,713 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 [2022-11-16 16:23:37,715 INFO L413 NwaCegarLoop]: 1792 mSDtfsCounter, 1637 mSDsluCounter, 3195 mSDsCounter, 0 mSdLazyCounter, 758 mSolverCounterSat, 3 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1640 SdHoareTripleChecker+Valid, 4987 SdHoareTripleChecker+Invalid, 765 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 758 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.1s IncrementalHoareTripleChecker+Time [2022-11-16 16:23:37,715 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1640 Valid, 4987 Invalid, 765 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 758 Invalid, 4 Unknown, 0 Unchecked, 15.1s Time] [2022-11-16 16:23:37,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3510 states. [2022-11-16 16:23:37,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3510 to 3337. [2022-11-16 16:23:37,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3337 states, 1990 states have (on average 1.2894472361809046) internal successors, (2566), 2103 states have internal predecessors, (2566), 1019 states have call successors, (1019), 296 states have call predecessors, (1019), 295 states have return successors, (1035), 995 states have call predecessors, (1035), 1017 states have call successors, (1035) [2022-11-16 16:23:37,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3337 states to 3337 states and 4620 transitions. [2022-11-16 16:23:37,966 INFO L78 Accepts]: Start accepts. Automaton has 3337 states and 4620 transitions. Word has length 48 [2022-11-16 16:23:37,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 16:23:37,967 INFO L495 AbstractCegarLoop]: Abstraction has 3337 states and 4620 transitions. [2022-11-16 16:23:37,967 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (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) [2022-11-16 16:23:37,968 INFO L276 IsEmpty]: Start isEmpty. Operand 3337 states and 4620 transitions. [2022-11-16 16:23:37,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-11-16 16:23:37,972 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 16:23:37,972 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 16:23:37,973 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-16 16:23:37,974 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 32 more)] === [2022-11-16 16:23:37,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 16:23:37,976 INFO L85 PathProgramCache]: Analyzing trace with hash -2003052724, now seen corresponding path program 1 times [2022-11-16 16:23:37,976 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 16:23:37,976 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1012454632] [2022-11-16 16:23:37,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:23:37,977 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 16:23:38,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 16:23:38,439 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-16 16:23:38,439 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 16:23:38,439 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1012454632] [2022-11-16 16:23:38,440 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1012454632] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 16:23:38,440 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 16:23:38,440 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 16:23:38,440 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1138145832] [2022-11-16 16:23:38,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 16:23:38,440 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 16:23:38,441 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 16:23:38,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 16:23:38,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 16:23:38,441 INFO L87 Difference]: Start difference. First operand 3337 states and 4620 transitions. Second operand has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (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) [2022-11-16 16:23:40,461 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 [] [2022-11-16 16:23:42,482 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:23:45,630 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:23:48,887 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 [] [2022-11-16 16:23:49,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 16:23:49,255 INFO L93 Difference]: Finished difference Result 3452 states and 4768 transitions. [2022-11-16 16:23:49,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 16:23:49,256 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (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 53 [2022-11-16 16:23:49,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 16:23:49,281 INFO L225 Difference]: With dead ends: 3452 [2022-11-16 16:23:49,281 INFO L226 Difference]: Without dead ends: 3450 [2022-11-16 16:23:49,284 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 [2022-11-16 16:23:49,286 INFO L413 NwaCegarLoop]: 1489 mSDtfsCounter, 1666 mSDsluCounter, 1682 mSDsCounter, 0 mSdLazyCounter, 552 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1669 SdHoareTripleChecker+Valid, 3171 SdHoareTripleChecker+Invalid, 555 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 552 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.5s IncrementalHoareTripleChecker+Time [2022-11-16 16:23:49,286 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1669 Valid, 3171 Invalid, 555 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 552 Invalid, 3 Unknown, 0 Unchecked, 10.5s Time] [2022-11-16 16:23:49,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3450 states. [2022-11-16 16:23:49,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3450 to 3447. [2022-11-16 16:23:49,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3447 states, 2054 states have (on average 1.2872444011684518) internal successors, (2644), 2170 states have internal predecessors, (2644), 1051 states have call successors, (1051), 310 states have call predecessors, (1051), 310 states have return successors, (1068), 1026 states have call predecessors, (1068), 1049 states have call successors, (1068) [2022-11-16 16:23:49,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3447 states to 3447 states and 4763 transitions. [2022-11-16 16:23:49,653 INFO L78 Accepts]: Start accepts. Automaton has 3447 states and 4763 transitions. Word has length 53 [2022-11-16 16:23:49,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 16:23:49,654 INFO L495 AbstractCegarLoop]: Abstraction has 3447 states and 4763 transitions. [2022-11-16 16:23:49,654 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (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) [2022-11-16 16:23:49,655 INFO L276 IsEmpty]: Start isEmpty. Operand 3447 states and 4763 transitions. [2022-11-16 16:23:49,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-11-16 16:23:49,657 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 16:23:49,657 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 16:23:49,657 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-16 16:23:49,658 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 32 more)] === [2022-11-16 16:23:49,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 16:23:49,658 INFO L85 PathProgramCache]: Analyzing trace with hash 454003990, now seen corresponding path program 1 times [2022-11-16 16:23:49,659 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 16:23:49,659 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [97875299] [2022-11-16 16:23:49,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:23:49,659 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 16:23:49,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 16:23:50,080 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-16 16:23:50,081 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 16:23:50,081 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [97875299] [2022-11-16 16:23:50,081 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [97875299] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 16:23:50,081 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 16:23:50,081 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 16:23:50,082 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1128515787] [2022-11-16 16:23:50,082 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 16:23:50,082 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 16:23:50,083 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 16:23:50,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 16:23:50,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 16:23:50,084 INFO L87 Difference]: Start difference. First operand 3447 states and 4763 transitions. Second operand has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (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) [2022-11-16 16:23:52,955 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 [] [2022-11-16 16:23:56,784 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:24:01,820 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.98s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:24:05,707 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:24:07,177 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:24:07,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 16:24:07,404 INFO L93 Difference]: Finished difference Result 5531 states and 7599 transitions. [2022-11-16 16:24:07,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 16:24:07,405 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (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 58 [2022-11-16 16:24:07,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 16:24:07,442 INFO L225 Difference]: With dead ends: 5531 [2022-11-16 16:24:07,442 INFO L226 Difference]: Without dead ends: 5529 [2022-11-16 16:24:07,447 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 [2022-11-16 16:24:07,448 INFO L413 NwaCegarLoop]: 1967 mSDtfsCounter, 1464 mSDsluCounter, 3376 mSDsCounter, 0 mSdLazyCounter, 863 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1467 SdHoareTripleChecker+Valid, 5343 SdHoareTripleChecker+Invalid, 866 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 863 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.9s IncrementalHoareTripleChecker+Time [2022-11-16 16:24:07,449 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1467 Valid, 5343 Invalid, 866 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 863 Invalid, 2 Unknown, 0 Unchecked, 16.9s Time] [2022-11-16 16:24:07,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5529 states. [2022-11-16 16:24:07,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5529 to 5268. [2022-11-16 16:24:07,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5268 states, 3135 states have (on average 1.2842105263157895) internal successors, (4026), 3298 states have internal predecessors, (4026), 1623 states have call successors, (1623), 478 states have call predecessors, (1623), 478 states have return successors, (1650), 1583 states have call predecessors, (1650), 1621 states have call successors, (1650) [2022-11-16 16:24:07,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5268 states to 5268 states and 7299 transitions. [2022-11-16 16:24:07,986 INFO L78 Accepts]: Start accepts. Automaton has 5268 states and 7299 transitions. Word has length 58 [2022-11-16 16:24:07,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 16:24:07,987 INFO L495 AbstractCegarLoop]: Abstraction has 5268 states and 7299 transitions. [2022-11-16 16:24:07,988 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (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) [2022-11-16 16:24:07,989 INFO L276 IsEmpty]: Start isEmpty. Operand 5268 states and 7299 transitions. [2022-11-16 16:24:07,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-11-16 16:24:07,991 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 16:24:07,992 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 16:24:07,992 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-16 16:24:07,992 INFO L420 AbstractCegarLoop]: === Iteration 6 === 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 32 more)] === [2022-11-16 16:24:07,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 16:24:07,994 INFO L85 PathProgramCache]: Analyzing trace with hash -1265835479, now seen corresponding path program 1 times [2022-11-16 16:24:07,994 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 16:24:07,994 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1443757176] [2022-11-16 16:24:07,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:24:07,994 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 16:24:08,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 16:24:08,390 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-16 16:24:08,391 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 16:24:08,391 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1443757176] [2022-11-16 16:24:08,391 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1443757176] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 16:24:08,391 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 16:24:08,391 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 16:24:08,391 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1435229069] [2022-11-16 16:24:08,392 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 16:24:08,392 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 16:24:08,392 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 16:24:08,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 16:24:08,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 16:24:08,393 INFO L87 Difference]: Start difference. First operand 5268 states and 7299 transitions. Second operand has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (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) [2022-11-16 16:24:11,351 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:24:15,121 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:24:22,351 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.58s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:24:24,360 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:24:24,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 16:24:24,583 INFO L93 Difference]: Finished difference Result 5529 states and 7597 transitions. [2022-11-16 16:24:24,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 16:24:24,583 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (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 63 [2022-11-16 16:24:24,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 16:24:24,619 INFO L225 Difference]: With dead ends: 5529 [2022-11-16 16:24:24,620 INFO L226 Difference]: Without dead ends: 5527 [2022-11-16 16:24:24,625 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-16 16:24:24,626 INFO L413 NwaCegarLoop]: 1967 mSDtfsCounter, 1461 mSDsluCounter, 3376 mSDsCounter, 0 mSdLazyCounter, 862 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1464 SdHoareTripleChecker+Valid, 5343 SdHoareTripleChecker+Invalid, 866 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 862 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.8s IncrementalHoareTripleChecker+Time [2022-11-16 16:24:24,626 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1464 Valid, 5343 Invalid, 866 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 862 Invalid, 3 Unknown, 0 Unchecked, 15.8s Time] [2022-11-16 16:24:24,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5527 states. [2022-11-16 16:24:24,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5527 to 5274. [2022-11-16 16:24:24,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5274 states, 3138 states have (on average 1.2839388145315487) internal successors, (4029), 3301 states have internal predecessors, (4029), 1625 states have call successors, (1625), 479 states have call predecessors, (1625), 479 states have return successors, (1652), 1585 states have call predecessors, (1652), 1623 states have call successors, (1652) [2022-11-16 16:24:25,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5274 states to 5274 states and 7306 transitions. [2022-11-16 16:24:25,006 INFO L78 Accepts]: Start accepts. Automaton has 5274 states and 7306 transitions. Word has length 63 [2022-11-16 16:24:25,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 16:24:25,007 INFO L495 AbstractCegarLoop]: Abstraction has 5274 states and 7306 transitions. [2022-11-16 16:24:25,007 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (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) [2022-11-16 16:24:25,007 INFO L276 IsEmpty]: Start isEmpty. Operand 5274 states and 7306 transitions. [2022-11-16 16:24:25,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-11-16 16:24:25,008 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 16:24:25,009 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 16:24:25,009 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-16 16:24:25,009 INFO L420 AbstractCegarLoop]: === Iteration 7 === 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 32 more)] === [2022-11-16 16:24:25,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 16:24:25,010 INFO L85 PathProgramCache]: Analyzing trace with hash 1567832818, now seen corresponding path program 1 times [2022-11-16 16:24:25,010 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 16:24:25,010 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [59969022] [2022-11-16 16:24:25,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:24:25,010 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 16:24:25,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 16:24:25,473 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-16 16:24:25,474 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 16:24:25,474 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [59969022] [2022-11-16 16:24:25,474 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [59969022] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 16:24:25,474 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 16:24:25,474 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 16:24:25,474 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2128510456] [2022-11-16 16:24:25,475 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 16:24:25,475 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 16:24:25,475 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 16:24:25,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 16:24:25,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 16:24:25,476 INFO L87 Difference]: Start difference. First operand 5274 states and 7306 transitions. Second operand has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (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) [2022-11-16 16:24:27,580 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:24:29,594 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:24:32,774 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:24:35,662 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.61s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:24:38,691 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 [] [2022-11-16 16:24:38,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 16:24:38,790 INFO L93 Difference]: Finished difference Result 5276 states and 7308 transitions. [2022-11-16 16:24:38,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 16:24:38,791 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (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 68 [2022-11-16 16:24:38,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 16:24:38,824 INFO L225 Difference]: With dead ends: 5276 [2022-11-16 16:24:38,825 INFO L226 Difference]: Without dead ends: 5274 [2022-11-16 16:24:38,829 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-16 16:24:38,830 INFO L413 NwaCegarLoop]: 1489 mSDtfsCounter, 1669 mSDsluCounter, 1682 mSDsCounter, 0 mSdLazyCounter, 554 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1672 SdHoareTripleChecker+Valid, 3171 SdHoareTripleChecker+Invalid, 557 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 554 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.0s IncrementalHoareTripleChecker+Time [2022-11-16 16:24:38,831 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1672 Valid, 3171 Invalid, 557 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 554 Invalid, 3 Unknown, 0 Unchecked, 13.0s Time] [2022-11-16 16:24:38,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5274 states. [2022-11-16 16:24:39,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5274 to 5272. [2022-11-16 16:24:39,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5272 states, 3137 states have (on average 1.283710551482308) internal successors, (4027), 3299 states have internal predecessors, (4027), 1625 states have call successors, (1625), 479 states have call predecessors, (1625), 479 states have return successors, (1652), 1585 states have call predecessors, (1652), 1623 states have call successors, (1652) [2022-11-16 16:24:39,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5272 states to 5272 states and 7304 transitions. [2022-11-16 16:24:39,243 INFO L78 Accepts]: Start accepts. Automaton has 5272 states and 7304 transitions. Word has length 68 [2022-11-16 16:24:39,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 16:24:39,244 INFO L495 AbstractCegarLoop]: Abstraction has 5272 states and 7304 transitions. [2022-11-16 16:24:39,244 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (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) [2022-11-16 16:24:39,244 INFO L276 IsEmpty]: Start isEmpty. Operand 5272 states and 7304 transitions. [2022-11-16 16:24:39,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-11-16 16:24:39,248 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 16:24:39,249 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 16:24:39,249 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-16 16:24:39,249 INFO L420 AbstractCegarLoop]: === Iteration 8 === 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 32 more)] === [2022-11-16 16:24:39,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 16:24:39,250 INFO L85 PathProgramCache]: Analyzing trace with hash -1592682553, now seen corresponding path program 1 times [2022-11-16 16:24:39,250 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 16:24:39,250 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [85529360] [2022-11-16 16:24:39,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:24:39,251 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 16:24:39,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 16:24:39,604 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-16 16:24:39,604 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 16:24:39,605 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [85529360] [2022-11-16 16:24:39,605 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [85529360] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 16:24:39,605 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 16:24:39,605 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 16:24:39,605 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1286065513] [2022-11-16 16:24:39,605 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 16:24:39,606 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 16:24:39,606 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 16:24:39,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 16:24:39,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 16:24:39,607 INFO L87 Difference]: Start difference. First operand 5272 states and 7304 transitions. Second operand has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (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) [2022-11-16 16:24:42,545 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 [] [2022-11-16 16:24:46,282 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:24:49,998 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:24:50,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 16:24:50,830 INFO L93 Difference]: Finished difference Result 5407 states and 7441 transitions. [2022-11-16 16:24:50,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 16:24:50,831 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (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 73 [2022-11-16 16:24:50,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 16:24:50,862 INFO L225 Difference]: With dead ends: 5407 [2022-11-16 16:24:50,862 INFO L226 Difference]: Without dead ends: 5405 [2022-11-16 16:24:50,866 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-16 16:24:50,867 INFO L413 NwaCegarLoop]: 1959 mSDtfsCounter, 1455 mSDsluCounter, 3362 mSDsCounter, 0 mSdLazyCounter, 856 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1458 SdHoareTripleChecker+Valid, 5321 SdHoareTripleChecker+Invalid, 860 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 856 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.8s IncrementalHoareTripleChecker+Time [2022-11-16 16:24:50,867 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1458 Valid, 5321 Invalid, 860 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 856 Invalid, 3 Unknown, 0 Unchecked, 10.8s Time] [2022-11-16 16:24:50,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5405 states. [2022-11-16 16:24:51,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5405 to 5286. [2022-11-16 16:24:51,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5286 states, 3145 states have (on average 1.2833068362480127) internal successors, (4036), 3307 states have internal predecessors, (4036), 1629 states have call successors, (1629), 481 states have call predecessors, (1629), 481 states have return successors, (1656), 1589 states have call predecessors, (1656), 1627 states have call successors, (1656) [2022-11-16 16:24:51,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5286 states to 5286 states and 7321 transitions. [2022-11-16 16:24:51,305 INFO L78 Accepts]: Start accepts. Automaton has 5286 states and 7321 transitions. Word has length 73 [2022-11-16 16:24:51,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 16:24:51,306 INFO L495 AbstractCegarLoop]: Abstraction has 5286 states and 7321 transitions. [2022-11-16 16:24:51,307 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (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) [2022-11-16 16:24:51,307 INFO L276 IsEmpty]: Start isEmpty. Operand 5286 states and 7321 transitions. [2022-11-16 16:24:51,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2022-11-16 16:24:51,311 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 16:24:51,312 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, 1, 1, 1] [2022-11-16 16:24:51,312 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-16 16:24:51,312 INFO L420 AbstractCegarLoop]: === Iteration 9 === 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 32 more)] === [2022-11-16 16:24:51,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 16:24:51,313 INFO L85 PathProgramCache]: Analyzing trace with hash -464994863, now seen corresponding path program 1 times [2022-11-16 16:24:51,313 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 16:24:51,313 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [583102265] [2022-11-16 16:24:51,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:24:51,314 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 16:24:51,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 16:24:52,643 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2022-11-16 16:24:52,644 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 16:24:52,644 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [583102265] [2022-11-16 16:24:52,644 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [583102265] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 16:24:52,644 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 16:24:52,644 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-16 16:24:52,644 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1713653447] [2022-11-16 16:24:52,645 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 16:24:52,645 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 16:24:52,645 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 16:24:52,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 16:24:52,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-16 16:24:52,646 INFO L87 Difference]: Start difference. First operand 5286 states and 7321 transitions. Second operand has 6 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 3 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-16 16:24:57,080 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:25:02,803 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:25:07,542 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:25:09,494 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:25:10,527 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:25:13,062 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.57s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-16 16:25:16,948 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:25:18,961 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:25:20,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 16:25:20,147 INFO L93 Difference]: Finished difference Result 5521 states and 7589 transitions. [2022-11-16 16:25:20,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-16 16:25:20,147 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 3 states have call predecessors, (11), 2 states have call successors, (11) Word has length 88 [2022-11-16 16:25:20,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 16:25:20,177 INFO L225 Difference]: With dead ends: 5521 [2022-11-16 16:25:20,177 INFO L226 Difference]: Without dead ends: 5519 [2022-11-16 16:25:20,181 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-11-16 16:25:20,182 INFO L413 NwaCegarLoop]: 1966 mSDtfsCounter, 1461 mSDsluCounter, 6629 mSDsCounter, 0 mSdLazyCounter, 2140 mSolverCounterSat, 1 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 26.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1466 SdHoareTripleChecker+Valid, 8595 SdHoareTripleChecker+Invalid, 2145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2140 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 26.9s IncrementalHoareTripleChecker+Time [2022-11-16 16:25:20,183 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1466 Valid, 8595 Invalid, 2145 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 2140 Invalid, 4 Unknown, 0 Unchecked, 26.9s Time] [2022-11-16 16:25:20,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5519 states. [2022-11-16 16:25:20,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5519 to 5286. [2022-11-16 16:25:20,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5286 states, 3145 states have (on average 1.2826709062003179) internal successors, (4034), 3307 states have internal predecessors, (4034), 1629 states have call successors, (1629), 481 states have call predecessors, (1629), 481 states have return successors, (1656), 1589 states have call predecessors, (1656), 1627 states have call successors, (1656) [2022-11-16 16:25:20,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5286 states to 5286 states and 7319 transitions. [2022-11-16 16:25:20,703 INFO L78 Accepts]: Start accepts. Automaton has 5286 states and 7319 transitions. Word has length 88 [2022-11-16 16:25:20,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 16:25:20,704 INFO L495 AbstractCegarLoop]: Abstraction has 5286 states and 7319 transitions. [2022-11-16 16:25:20,704 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 3 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-16 16:25:20,704 INFO L276 IsEmpty]: Start isEmpty. Operand 5286 states and 7319 transitions. [2022-11-16 16:25:20,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-11-16 16:25:20,706 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 16:25:20,706 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 16:25:20,706 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-16 16:25:20,707 INFO L420 AbstractCegarLoop]: === Iteration 10 === 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 32 more)] === [2022-11-16 16:25:20,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 16:25:20,707 INFO L85 PathProgramCache]: Analyzing trace with hash -1559440662, now seen corresponding path program 1 times [2022-11-16 16:25:20,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 16:25:20,708 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [542922932] [2022-11-16 16:25:20,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:25:20,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 16:25:20,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 16:25:21,070 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-16 16:25:21,070 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 16:25:21,070 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [542922932] [2022-11-16 16:25:21,071 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [542922932] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 16:25:21,071 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 16:25:21,071 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 16:25:21,071 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1792549235] [2022-11-16 16:25:21,071 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 16:25:21,072 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 16:25:21,072 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 16:25:21,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 16:25:21,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 16:25:21,073 INFO L87 Difference]: Start difference. First operand 5286 states and 7319 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, (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) [2022-11-16 16:25:23,891 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:25:27,649 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:25:31,005 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:25:33,016 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:25:35,025 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 [] [2022-11-16 16:25:36,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 16:25:36,944 INFO L93 Difference]: Finished difference Result 5519 states and 7586 transitions. [2022-11-16 16:25:36,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 16:25:36,945 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, (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 75 [2022-11-16 16:25:36,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 16:25:36,974 INFO L225 Difference]: With dead ends: 5519 [2022-11-16 16:25:36,975 INFO L226 Difference]: Without dead ends: 5517 [2022-11-16 16:25:36,979 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 [2022-11-16 16:25:36,980 INFO L413 NwaCegarLoop]: 1965 mSDtfsCounter, 1449 mSDsluCounter, 3372 mSDsCounter, 0 mSdLazyCounter, 860 mSolverCounterSat, 1 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1452 SdHoareTripleChecker+Valid, 5337 SdHoareTripleChecker+Invalid, 865 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 860 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.4s IncrementalHoareTripleChecker+Time [2022-11-16 16:25:36,981 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1452 Valid, 5337 Invalid, 865 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 860 Invalid, 4 Unknown, 0 Unchecked, 15.4s Time] [2022-11-16 16:25:36,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5517 states. [2022-11-16 16:25:37,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5517 to 5286. [2022-11-16 16:25:37,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5286 states, 3145 states have (on average 1.2823529411764707) internal successors, (4033), 3307 states have internal predecessors, (4033), 1629 states have call successors, (1629), 481 states have call predecessors, (1629), 481 states have return successors, (1656), 1589 states have call predecessors, (1656), 1627 states have call successors, (1656) [2022-11-16 16:25:37,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5286 states to 5286 states and 7318 transitions. [2022-11-16 16:25:37,440 INFO L78 Accepts]: Start accepts. Automaton has 5286 states and 7318 transitions. Word has length 75 [2022-11-16 16:25:37,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 16:25:37,440 INFO L495 AbstractCegarLoop]: Abstraction has 5286 states and 7318 transitions. [2022-11-16 16:25:37,441 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, (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) [2022-11-16 16:25:37,441 INFO L276 IsEmpty]: Start isEmpty. Operand 5286 states and 7318 transitions. [2022-11-16 16:25:37,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-11-16 16:25:37,443 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 16:25:37,443 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, 1, 1, 1, 1, 1, 1] [2022-11-16 16:25:37,443 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-16 16:25:37,444 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_check_alloc_flagsErr1ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-11-16 16:25:37,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 16:25:37,444 INFO L85 PathProgramCache]: Analyzing trace with hash -1260284049, now seen corresponding path program 1 times [2022-11-16 16:25:37,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 16:25:37,445 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2022411371] [2022-11-16 16:25:37,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:25:37,445 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 16:25:37,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 16:25:37,763 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2022-11-16 16:25:37,763 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 16:25:37,763 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2022411371] [2022-11-16 16:25:37,764 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2022411371] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 16:25:37,764 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 16:25:37,764 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 16:25:37,764 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1907149943] [2022-11-16 16:25:37,764 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 16:25:37,766 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 16:25:37,766 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 16:25:37,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 16:25:37,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 16:25:37,767 INFO L87 Difference]: Start difference. First operand 5286 states and 7318 transitions. Second operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-16 16:25:40,361 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 [] [2022-11-16 16:25:43,739 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:25:46,264 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:25:47,703 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:25:49,715 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:25:51,702 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:25:51,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 16:25:51,961 INFO L93 Difference]: Finished difference Result 10776 states and 14889 transitions. [2022-11-16 16:25:51,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 16:25:51,961 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 91 [2022-11-16 16:25:51,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 16:25:51,990 INFO L225 Difference]: With dead ends: 10776 [2022-11-16 16:25:51,990 INFO L226 Difference]: Without dead ends: 5511 [2022-11-16 16:25:52,018 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 [2022-11-16 16:25:52,018 INFO L413 NwaCegarLoop]: 1966 mSDtfsCounter, 1437 mSDsluCounter, 1407 mSDsCounter, 0 mSdLazyCounter, 555 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1438 SdHoareTripleChecker+Valid, 3373 SdHoareTripleChecker+Invalid, 558 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 555 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.7s IncrementalHoareTripleChecker+Time [2022-11-16 16:25:52,019 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1438 Valid, 3373 Invalid, 558 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 555 Invalid, 3 Unknown, 0 Unchecked, 13.7s Time] [2022-11-16 16:25:52,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5511 states. [2022-11-16 16:25:52,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5511 to 5282. [2022-11-16 16:25:52,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5282 states, 3141 states have (on average 1.2814390321553646) internal successors, (4025), 3303 states have internal predecessors, (4025), 1629 states have call successors, (1629), 481 states have call predecessors, (1629), 481 states have return successors, (1656), 1589 states have call predecessors, (1656), 1627 states have call successors, (1656) [2022-11-16 16:25:52,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5282 states to 5282 states and 7310 transitions. [2022-11-16 16:25:52,644 INFO L78 Accepts]: Start accepts. Automaton has 5282 states and 7310 transitions. Word has length 91 [2022-11-16 16:25:52,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 16:25:52,645 INFO L495 AbstractCegarLoop]: Abstraction has 5282 states and 7310 transitions. [2022-11-16 16:25:52,646 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-16 16:25:52,646 INFO L276 IsEmpty]: Start isEmpty. Operand 5282 states and 7310 transitions. [2022-11-16 16:25:52,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-11-16 16:25:52,649 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 16:25:52,650 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 16:25:52,650 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-16 16:25:52,650 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 32 more)] === [2022-11-16 16:25:52,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 16:25:52,651 INFO L85 PathProgramCache]: Analyzing trace with hash 1031479815, now seen corresponding path program 1 times [2022-11-16 16:25:52,651 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 16:25:52,651 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [669819577] [2022-11-16 16:25:52,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:25:52,652 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 16:25:52,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 16:25:53,021 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-16 16:25:53,022 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 16:25:53,022 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [669819577] [2022-11-16 16:25:53,022 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [669819577] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 16:25:53,022 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 16:25:53,022 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 16:25:53,022 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [88288561] [2022-11-16 16:25:53,023 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 16:25:53,023 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 16:25:53,023 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 16:25:53,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 16:25:53,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 16:25:53,024 INFO L87 Difference]: Start difference. First operand 5282 states and 7310 transitions. Second operand has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (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) [2022-11-16 16:25:55,194 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:25:57,209 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:26:00,424 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:26:04,626 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.70s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:26:06,637 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:26:08,053 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:26:08,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 16:26:08,168 INFO L93 Difference]: Finished difference Result 5284 states and 7312 transitions. [2022-11-16 16:26:08,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 16:26:08,168 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (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 80 [2022-11-16 16:26:08,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 16:26:08,197 INFO L225 Difference]: With dead ends: 5284 [2022-11-16 16:26:08,197 INFO L226 Difference]: Without dead ends: 5282 [2022-11-16 16:26:08,202 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 [2022-11-16 16:26:08,203 INFO L413 NwaCegarLoop]: 1487 mSDtfsCounter, 1665 mSDsluCounter, 1680 mSDsCounter, 0 mSdLazyCounter, 554 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1668 SdHoareTripleChecker+Valid, 3167 SdHoareTripleChecker+Invalid, 557 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 554 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.8s IncrementalHoareTripleChecker+Time [2022-11-16 16:26:08,203 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1668 Valid, 3167 Invalid, 557 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 554 Invalid, 3 Unknown, 0 Unchecked, 14.8s Time] [2022-11-16 16:26:08,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5282 states. [2022-11-16 16:26:08,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5282 to 5280. [2022-11-16 16:26:08,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5280 states, 3140 states have (on average 1.2812101910828027) internal successors, (4023), 3301 states have internal predecessors, (4023), 1629 states have call successors, (1629), 481 states have call predecessors, (1629), 481 states have return successors, (1656), 1589 states have call predecessors, (1656), 1627 states have call successors, (1656) [2022-11-16 16:26:08,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5280 states to 5280 states and 7308 transitions. [2022-11-16 16:26:08,799 INFO L78 Accepts]: Start accepts. Automaton has 5280 states and 7308 transitions. Word has length 80 [2022-11-16 16:26:08,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 16:26:08,800 INFO L495 AbstractCegarLoop]: Abstraction has 5280 states and 7308 transitions. [2022-11-16 16:26:08,800 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (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) [2022-11-16 16:26:08,801 INFO L276 IsEmpty]: Start isEmpty. Operand 5280 states and 7308 transitions. [2022-11-16 16:26:08,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-11-16 16:26:08,802 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 16:26:08,803 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 16:26:08,803 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-16 16:26:08,803 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 32 more)] === [2022-11-16 16:26:08,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 16:26:08,804 INFO L85 PathProgramCache]: Analyzing trace with hash 1244991609, now seen corresponding path program 1 times [2022-11-16 16:26:08,804 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 16:26:08,804 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [595306202] [2022-11-16 16:26:08,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:26:08,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 16:26:08,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 16:26:09,160 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-16 16:26:09,160 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 16:26:09,160 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [595306202] [2022-11-16 16:26:09,160 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [595306202] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 16:26:09,160 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 16:26:09,160 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 16:26:09,161 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1231468962] [2022-11-16 16:26:09,161 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 16:26:09,161 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 16:26:09,161 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 16:26:09,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 16:26:09,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 16:26:09,162 INFO L87 Difference]: Start difference. First operand 5280 states and 7308 transitions. Second operand has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (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) [2022-11-16 16:26:12,051 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 [] [2022-11-16 16:26:15,893 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:26:17,352 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:26:20,549 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 [] [2022-11-16 16:26:21,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 16:26:21,608 INFO L93 Difference]: Finished difference Result 5391 states and 7421 transitions. [2022-11-16 16:26:21,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 16:26:21,609 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (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 85 [2022-11-16 16:26:21,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 16:26:21,633 INFO L225 Difference]: With dead ends: 5391 [2022-11-16 16:26:21,634 INFO L226 Difference]: Without dead ends: 5389 [2022-11-16 16:26:21,636 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-16 16:26:21,637 INFO L413 NwaCegarLoop]: 1957 mSDtfsCounter, 1432 mSDsluCounter, 3362 mSDsCounter, 0 mSdLazyCounter, 856 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1435 SdHoareTripleChecker+Valid, 5319 SdHoareTripleChecker+Invalid, 860 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 856 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.0s IncrementalHoareTripleChecker+Time [2022-11-16 16:26:21,637 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1435 Valid, 5319 Invalid, 860 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 856 Invalid, 3 Unknown, 0 Unchecked, 12.0s Time] [2022-11-16 16:26:21,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5389 states. [2022-11-16 16:26:22,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5389 to 5292. [2022-11-16 16:26:22,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5292 states, 3146 states have (on average 1.2806738715829624) internal successors, (4029), 3307 states have internal predecessors, (4029), 1633 states have call successors, (1633), 483 states have call predecessors, (1633), 483 states have return successors, (1660), 1593 states have call predecessors, (1660), 1631 states have call successors, (1660) [2022-11-16 16:26:22,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5292 states to 5292 states and 7322 transitions. [2022-11-16 16:26:22,174 INFO L78 Accepts]: Start accepts. Automaton has 5292 states and 7322 transitions. Word has length 85 [2022-11-16 16:26:22,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 16:26:22,177 INFO L495 AbstractCegarLoop]: Abstraction has 5292 states and 7322 transitions. [2022-11-16 16:26:22,177 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (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) [2022-11-16 16:26:22,178 INFO L276 IsEmpty]: Start isEmpty. Operand 5292 states and 7322 transitions. [2022-11-16 16:26:22,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-11-16 16:26:22,180 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 16:26:22,180 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 16:26:22,180 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-16 16:26:22,181 INFO L420 AbstractCegarLoop]: === Iteration 14 === 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 32 more)] === [2022-11-16 16:26:22,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 16:26:22,181 INFO L85 PathProgramCache]: Analyzing trace with hash 184201682, now seen corresponding path program 1 times [2022-11-16 16:26:22,182 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 16:26:22,182 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1739585480] [2022-11-16 16:26:22,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:26:22,182 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 16:26:22,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 16:26:23,025 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 225 trivial. 0 not checked. [2022-11-16 16:26:23,025 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 16:26:23,025 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1739585480] [2022-11-16 16:26:23,026 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1739585480] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 16:26:23,026 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 16:26:23,026 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 16:26:23,026 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [555676977] [2022-11-16 16:26:23,026 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 16:26:23,026 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 16:26:23,027 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 16:26:23,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 16:26:23,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-16 16:26:23,027 INFO L87 Difference]: Start difference. First operand 5292 states and 7322 transitions. Second operand has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-16 16:26:26,568 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 [] [2022-11-16 16:26:31,052 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:26:38,043 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:26:39,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 16:26:39,018 INFO L93 Difference]: Finished difference Result 5819 states and 7869 transitions. [2022-11-16 16:26:39,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 16:26:39,019 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 117 [2022-11-16 16:26:39,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 16:26:39,048 INFO L225 Difference]: With dead ends: 5819 [2022-11-16 16:26:39,049 INFO L226 Difference]: Without dead ends: 5817 [2022-11-16 16:26:39,054 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-16 16:26:39,055 INFO L413 NwaCegarLoop]: 1953 mSDtfsCounter, 1386 mSDsluCounter, 5281 mSDsCounter, 0 mSdLazyCounter, 1160 mSolverCounterSat, 2 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1390 SdHoareTripleChecker+Valid, 7234 SdHoareTripleChecker+Invalid, 1165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1160 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.3s IncrementalHoareTripleChecker+Time [2022-11-16 16:26:39,055 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1390 Valid, 7234 Invalid, 1165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1160 Invalid, 3 Unknown, 0 Unchecked, 15.3s Time] [2022-11-16 16:26:39,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5817 states. [2022-11-16 16:26:39,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5817 to 5702. [2022-11-16 16:26:39,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5702 states, 3371 states have (on average 1.2699495698605754) internal successors, (4281), 3539 states have internal predecessors, (4281), 1723 states have call successors, (1723), 581 states have call predecessors, (1723), 578 states have return successors, (1750), 1673 states have call predecessors, (1750), 1721 states have call successors, (1750) [2022-11-16 16:26:39,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5702 states to 5702 states and 7754 transitions. [2022-11-16 16:26:39,664 INFO L78 Accepts]: Start accepts. Automaton has 5702 states and 7754 transitions. Word has length 117 [2022-11-16 16:26:39,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 16:26:39,665 INFO L495 AbstractCegarLoop]: Abstraction has 5702 states and 7754 transitions. [2022-11-16 16:26:39,665 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-16 16:26:39,666 INFO L276 IsEmpty]: Start isEmpty. Operand 5702 states and 7754 transitions. [2022-11-16 16:26:39,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-11-16 16:26:39,668 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 16:26:39,668 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 16:26:39,668 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-16 16:26:39,668 INFO L420 AbstractCegarLoop]: === Iteration 15 === 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 32 more)] === [2022-11-16 16:26:39,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 16:26:39,669 INFO L85 PathProgramCache]: Analyzing trace with hash 355514815, now seen corresponding path program 1 times [2022-11-16 16:26:39,669 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 16:26:39,670 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1684998416] [2022-11-16 16:26:39,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:26:39,670 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 16:26:39,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 16:26:40,079 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-16 16:26:40,079 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 16:26:40,079 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1684998416] [2022-11-16 16:26:40,079 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1684998416] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 16:26:40,079 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 16:26:40,080 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 16:26:40,080 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1528406539] [2022-11-16 16:26:40,080 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 16:26:40,080 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 16:26:40,081 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 16:26:40,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 16:26:40,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 16:26:40,081 INFO L87 Difference]: Start difference. First operand 5702 states and 7754 transitions. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (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) [2022-11-16 16:26:43,246 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:26:47,103 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:26:51,337 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 [] [2022-11-16 16:26:52,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 16:26:52,316 INFO L93 Difference]: Finished difference Result 5799 states and 7851 transitions. [2022-11-16 16:26:52,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 16:26:52,317 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (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 90 [2022-11-16 16:26:52,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 16:26:52,339 INFO L225 Difference]: With dead ends: 5799 [2022-11-16 16:26:52,340 INFO L226 Difference]: Without dead ends: 5797 [2022-11-16 16:26:52,345 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-16 16:26:52,345 INFO L413 NwaCegarLoop]: 1955 mSDtfsCounter, 1429 mSDsluCounter, 3360 mSDsCounter, 0 mSdLazyCounter, 856 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1432 SdHoareTripleChecker+Valid, 5315 SdHoareTripleChecker+Invalid, 860 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 856 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.7s IncrementalHoareTripleChecker+Time [2022-11-16 16:26:52,346 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1432 Valid, 5315 Invalid, 860 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 856 Invalid, 3 Unknown, 0 Unchecked, 11.7s Time] [2022-11-16 16:26:52,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5797 states. [2022-11-16 16:26:53,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5797 to 5708. [2022-11-16 16:26:53,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5708 states, 3374 states have (on average 1.2697095435684647) internal successors, (4284), 3542 states have internal predecessors, (4284), 1725 states have call successors, (1725), 582 states have call predecessors, (1725), 579 states have return successors, (1752), 1675 states have call predecessors, (1752), 1723 states have call successors, (1752) [2022-11-16 16:26:53,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5708 states to 5708 states and 7761 transitions. [2022-11-16 16:26:53,061 INFO L78 Accepts]: Start accepts. Automaton has 5708 states and 7761 transitions. Word has length 90 [2022-11-16 16:26:53,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 16:26:53,062 INFO L495 AbstractCegarLoop]: Abstraction has 5708 states and 7761 transitions. [2022-11-16 16:26:53,062 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (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) [2022-11-16 16:26:53,063 INFO L276 IsEmpty]: Start isEmpty. Operand 5708 states and 7761 transitions. [2022-11-16 16:26:53,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-11-16 16:26:53,065 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 16:26:53,065 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 16:26:53,065 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-16 16:26:53,066 INFO L420 AbstractCegarLoop]: === Iteration 16 === 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 32 more)] === [2022-11-16 16:26:53,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 16:26:53,066 INFO L85 PathProgramCache]: Analyzing trace with hash 838643732, now seen corresponding path program 1 times [2022-11-16 16:26:53,067 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 16:26:53,067 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1273532401] [2022-11-16 16:26:53,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:26:53,067 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 16:26:53,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 16:26:53,428 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-16 16:26:53,428 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 16:26:53,428 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1273532401] [2022-11-16 16:26:53,428 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1273532401] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 16:26:53,428 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 16:26:53,428 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 16:26:53,429 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [952401691] [2022-11-16 16:26:53,429 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 16:26:53,429 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 16:26:53,429 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 16:26:53,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 16:26:53,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 16:26:53,430 INFO L87 Difference]: Start difference. First operand 5708 states and 7761 transitions. Second operand has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (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) [2022-11-16 16:26:56,594 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 [] [2022-11-16 16:27:00,443 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:27:05,292 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:27:06,390 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:27:09,114 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:27:10,312 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 [] [2022-11-16 16:27:10,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 16:27:10,583 INFO L93 Difference]: Finished difference Result 5913 states and 7999 transitions. [2022-11-16 16:27:10,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 16:27:10,583 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (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 95 [2022-11-16 16:27:10,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 16:27:10,599 INFO L225 Difference]: With dead ends: 5913 [2022-11-16 16:27:10,599 INFO L226 Difference]: Without dead ends: 5911 [2022-11-16 16:27:10,601 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-16 16:27:10,602 INFO L413 NwaCegarLoop]: 1961 mSDtfsCounter, 1434 mSDsluCounter, 3366 mSDsCounter, 0 mSdLazyCounter, 862 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1437 SdHoareTripleChecker+Valid, 5327 SdHoareTripleChecker+Invalid, 866 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 862 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.5s IncrementalHoareTripleChecker+Time [2022-11-16 16:27:10,602 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1437 Valid, 5327 Invalid, 866 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 862 Invalid, 3 Unknown, 0 Unchecked, 16.5s Time] [2022-11-16 16:27:10,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5911 states. [2022-11-16 16:27:11,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5911 to 5714. [2022-11-16 16:27:11,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5714 states, 3377 states have (on average 1.2694699437370447) internal successors, (4287), 3545 states have internal predecessors, (4287), 1727 states have call successors, (1727), 583 states have call predecessors, (1727), 580 states have return successors, (1754), 1677 states have call predecessors, (1754), 1725 states have call successors, (1754) [2022-11-16 16:27:11,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5714 states to 5714 states and 7768 transitions. [2022-11-16 16:27:11,204 INFO L78 Accepts]: Start accepts. Automaton has 5714 states and 7768 transitions. Word has length 95 [2022-11-16 16:27:11,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 16:27:11,205 INFO L495 AbstractCegarLoop]: Abstraction has 5714 states and 7768 transitions. [2022-11-16 16:27:11,205 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (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) [2022-11-16 16:27:11,205 INFO L276 IsEmpty]: Start isEmpty. Operand 5714 states and 7768 transitions. [2022-11-16 16:27:11,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2022-11-16 16:27:11,208 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 16:27:11,208 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 16:27:11,209 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-16 16:27:11,209 INFO L420 AbstractCegarLoop]: === Iteration 17 === 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 32 more)] === [2022-11-16 16:27:11,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 16:27:11,210 INFO L85 PathProgramCache]: Analyzing trace with hash 1073388408, now seen corresponding path program 1 times [2022-11-16 16:27:11,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 16:27:11,210 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1205989931] [2022-11-16 16:27:11,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:27:11,211 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 16:27:11,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 16:27:12,073 INFO L134 CoverageAnalysis]: Checked inductivity of 227 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 225 trivial. 0 not checked. [2022-11-16 16:27:12,074 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 16:27:12,074 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1205989931] [2022-11-16 16:27:12,074 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1205989931] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 16:27:12,074 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 16:27:12,074 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 16:27:12,075 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1858224289] [2022-11-16 16:27:12,075 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 16:27:12,075 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 16:27:12,075 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 16:27:12,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 16:27:12,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-16 16:27:12,076 INFO L87 Difference]: Start difference. First operand 5714 states and 7768 transitions. Second operand has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-16 16:27:15,484 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 [] [2022-11-16 16:27:19,665 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:27:23,682 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:27:24,995 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:27:27,910 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:27:30,638 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 [] [2022-11-16 16:27:30,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 16:27:30,808 INFO L93 Difference]: Finished difference Result 7325 states and 9880 transitions. [2022-11-16 16:27:30,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 16:27:30,809 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 128 [2022-11-16 16:27:30,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 16:27:30,841 INFO L225 Difference]: With dead ends: 7325 [2022-11-16 16:27:30,841 INFO L226 Difference]: Without dead ends: 7323 [2022-11-16 16:27:30,845 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-16 16:27:30,846 INFO L413 NwaCegarLoop]: 1838 mSDtfsCounter, 1403 mSDsluCounter, 4657 mSDsCounter, 0 mSdLazyCounter, 1102 mSolverCounterSat, 3 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1407 SdHoareTripleChecker+Valid, 6495 SdHoareTripleChecker+Invalid, 1109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1102 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.1s IncrementalHoareTripleChecker+Time [2022-11-16 16:27:30,846 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1407 Valid, 6495 Invalid, 1109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1102 Invalid, 4 Unknown, 0 Unchecked, 18.1s Time] [2022-11-16 16:27:30,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7323 states. [2022-11-16 16:27:31,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7323 to 7300. [2022-11-16 16:27:31,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7300 states, 4323 states have (on average 1.268794818413139) internal successors, (5485), 4522 states have internal predecessors, (5485), 2172 states have call successors, (2172), 780 states have call predecessors, (2172), 775 states have return successors, (2201), 2103 states have call predecessors, (2201), 2170 states have call successors, (2201) [2022-11-16 16:27:31,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7300 states to 7300 states and 9858 transitions. [2022-11-16 16:27:31,529 INFO L78 Accepts]: Start accepts. Automaton has 7300 states and 9858 transitions. Word has length 128 [2022-11-16 16:27:31,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 16:27:31,529 INFO L495 AbstractCegarLoop]: Abstraction has 7300 states and 9858 transitions. [2022-11-16 16:27:31,530 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-16 16:27:31,530 INFO L276 IsEmpty]: Start isEmpty. Operand 7300 states and 9858 transitions. [2022-11-16 16:27:31,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2022-11-16 16:27:31,532 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 16:27:31,533 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 16:27:31,533 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-16 16:27:31,533 INFO L420 AbstractCegarLoop]: === Iteration 18 === 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 32 more)] === [2022-11-16 16:27:31,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 16:27:31,534 INFO L85 PathProgramCache]: Analyzing trace with hash 155170737, now seen corresponding path program 1 times [2022-11-16 16:27:31,534 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 16:27:31,534 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1309659903] [2022-11-16 16:27:31,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:27:31,535 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 16:27:31,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 16:27:32,311 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 225 trivial. 0 not checked. [2022-11-16 16:27:32,311 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 16:27:32,311 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1309659903] [2022-11-16 16:27:32,311 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1309659903] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 16:27:32,312 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 16:27:32,312 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 16:27:32,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1002326787] [2022-11-16 16:27:32,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 16:27:32,313 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 16:27:32,313 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 16:27:32,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 16:27:32,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-16 16:27:32,314 INFO L87 Difference]: Start difference. First operand 7300 states and 9858 transitions. Second operand has 5 states, 5 states have (on average 7.8) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (20), 3 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 1 states have call successors, (18) [2022-11-16 16:27:35,825 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:27:37,848 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:27:39,869 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:27:41,878 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:27:46,091 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:27:47,737 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:27:51,358 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:27:52,542 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:27:54,556 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:27:55,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 16:27:55,004 INFO L93 Difference]: Finished difference Result 7731 states and 10300 transitions. [2022-11-16 16:27:55,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 16:27:55,005 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (20), 3 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 1 states have call successors, (18) Word has length 129 [2022-11-16 16:27:55,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 16:27:55,037 INFO L225 Difference]: With dead ends: 7731 [2022-11-16 16:27:55,037 INFO L226 Difference]: Without dead ends: 7729 [2022-11-16 16:27:55,043 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-16 16:27:55,044 INFO L413 NwaCegarLoop]: 1545 mSDtfsCounter, 194 mSDsluCounter, 4465 mSDsCounter, 0 mSdLazyCounter, 1095 mSolverCounterSat, 0 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 195 SdHoareTripleChecker+Valid, 6010 SdHoareTripleChecker+Invalid, 1100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1095 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.0s IncrementalHoareTripleChecker+Time [2022-11-16 16:27:55,044 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [195 Valid, 6010 Invalid, 1100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1095 Invalid, 5 Unknown, 0 Unchecked, 22.0s Time] [2022-11-16 16:27:55,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7729 states. [2022-11-16 16:27:55,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7729 to 7641. [2022-11-16 16:27:55,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7641 states, 4509 states have (on average 1.262142381902861) internal successors, (5691), 4709 states have internal predecessors, (5691), 2242 states have call successors, (2242), 865 states have call predecessors, (2242), 860 states have return successors, (2271), 2172 states have call predecessors, (2271), 2240 states have call successors, (2271) [2022-11-16 16:27:55,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7641 states to 7641 states and 10204 transitions. [2022-11-16 16:27:55,610 INFO L78 Accepts]: Start accepts. Automaton has 7641 states and 10204 transitions. Word has length 129 [2022-11-16 16:27:55,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 16:27:55,611 INFO L495 AbstractCegarLoop]: Abstraction has 7641 states and 10204 transitions. [2022-11-16 16:27:55,611 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (20), 3 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 1 states have call successors, (18) [2022-11-16 16:27:55,611 INFO L276 IsEmpty]: Start isEmpty. Operand 7641 states and 10204 transitions. [2022-11-16 16:27:55,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-11-16 16:27:55,613 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 16:27:55,613 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 16:27:55,613 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-16 16:27:55,614 INFO L420 AbstractCegarLoop]: === Iteration 19 === 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 32 more)] === [2022-11-16 16:27:55,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 16:27:55,615 INFO L85 PathProgramCache]: Analyzing trace with hash -2057816427, now seen corresponding path program 1 times [2022-11-16 16:27:55,615 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 16:27:55,615 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1277337538] [2022-11-16 16:27:55,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:27:55,615 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 16:27:55,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 16:27:56,005 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-16 16:27:56,006 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 16:27:56,006 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1277337538] [2022-11-16 16:27:56,006 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1277337538] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 16:27:56,006 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 16:27:56,006 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 16:27:56,006 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [198512074] [2022-11-16 16:27:56,006 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 16:27:56,007 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 16:27:56,007 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 16:27:56,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 16:27:56,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 16:27:56,008 INFO L87 Difference]: Start difference. First operand 7641 states and 10204 transitions. Second operand has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (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) [2022-11-16 16:27:58,131 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:28:00,145 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:28:03,360 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:28:06,400 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:28:08,412 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:28:10,645 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:28:11,837 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:28:12,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 16:28:12,018 INFO L93 Difference]: Finished difference Result 7643 states and 10206 transitions. [2022-11-16 16:28:12,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 16:28:12,019 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (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 100 [2022-11-16 16:28:12,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 16:28:12,040 INFO L225 Difference]: With dead ends: 7643 [2022-11-16 16:28:12,040 INFO L226 Difference]: Without dead ends: 7641 [2022-11-16 16:28:12,044 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-16 16:28:12,044 INFO L413 NwaCegarLoop]: 1485 mSDtfsCounter, 1659 mSDsluCounter, 1678 mSDsCounter, 0 mSdLazyCounter, 554 mSolverCounterSat, 0 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1662 SdHoareTripleChecker+Valid, 3163 SdHoareTripleChecker+Invalid, 558 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 554 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.3s IncrementalHoareTripleChecker+Time [2022-11-16 16:28:12,045 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1662 Valid, 3163 Invalid, 558 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 554 Invalid, 4 Unknown, 0 Unchecked, 15.3s Time] [2022-11-16 16:28:12,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7641 states. [2022-11-16 16:28:12,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7641 to 7639. [2022-11-16 16:28:12,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7639 states, 4508 states have (on average 1.2619787045252884) internal successors, (5689), 4707 states have internal predecessors, (5689), 2242 states have call successors, (2242), 865 states have call predecessors, (2242), 860 states have return successors, (2271), 2172 states have call predecessors, (2271), 2240 states have call successors, (2271) [2022-11-16 16:28:12,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7639 states to 7639 states and 10202 transitions. [2022-11-16 16:28:12,641 INFO L78 Accepts]: Start accepts. Automaton has 7639 states and 10202 transitions. Word has length 100 [2022-11-16 16:28:12,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 16:28:12,641 INFO L495 AbstractCegarLoop]: Abstraction has 7639 states and 10202 transitions. [2022-11-16 16:28:12,641 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (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) [2022-11-16 16:28:12,641 INFO L276 IsEmpty]: Start isEmpty. Operand 7639 states and 10202 transitions. [2022-11-16 16:28:12,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2022-11-16 16:28:12,644 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 16:28:12,644 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 16:28:12,644 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-16 16:28:12,644 INFO L420 AbstractCegarLoop]: === Iteration 20 === 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 32 more)] === [2022-11-16 16:28:12,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 16:28:12,645 INFO L85 PathProgramCache]: Analyzing trace with hash -349913129, now seen corresponding path program 1 times [2022-11-16 16:28:12,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 16:28:12,645 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1665727992] [2022-11-16 16:28:12,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:28:12,646 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 16:28:12,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 16:28:13,508 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 174 trivial. 0 not checked. [2022-11-16 16:28:13,508 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 16:28:13,508 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1665727992] [2022-11-16 16:28:13,509 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1665727992] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 16:28:13,509 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 16:28:13,509 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 16:28:13,509 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [345072700] [2022-11-16 16:28:13,509 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 16:28:13,510 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 16:28:13,510 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 16:28:13,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 16:28:13,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-16 16:28:13,511 INFO L87 Difference]: Start difference. First operand 7639 states and 10202 transitions. Second operand has 5 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-16 16:28:17,149 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 [] [2022-11-16 16:28:22,134 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:28:25,930 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:28:27,707 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:28:28,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 16:28:28,101 INFO L93 Difference]: Finished difference Result 9118 states and 12040 transitions. [2022-11-16 16:28:28,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 16:28:28,102 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 123 [2022-11-16 16:28:28,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 16:28:28,131 INFO L225 Difference]: With dead ends: 9118 [2022-11-16 16:28:28,131 INFO L226 Difference]: Without dead ends: 9116 [2022-11-16 16:28:28,135 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-16 16:28:28,136 INFO L413 NwaCegarLoop]: 1620 mSDtfsCounter, 1096 mSDsluCounter, 4099 mSDsCounter, 0 mSdLazyCounter, 969 mSolverCounterSat, 2 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1098 SdHoareTripleChecker+Valid, 5719 SdHoareTripleChecker+Invalid, 974 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 969 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.8s IncrementalHoareTripleChecker+Time [2022-11-16 16:28:28,136 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1098 Valid, 5719 Invalid, 974 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 969 Invalid, 3 Unknown, 0 Unchecked, 13.8s Time] [2022-11-16 16:28:28,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9116 states. [2022-11-16 16:28:28,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9116 to 8990. [2022-11-16 16:28:28,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8990 states, 5355 states have (on average 1.2633053221288515) internal successors, (6765), 5576 states have internal predecessors, (6765), 2551 states have call successors, (2551), 1074 states have call predecessors, (2551), 1055 states have return successors, (2584), 2451 states have call predecessors, (2584), 2549 states have call successors, (2584) [2022-11-16 16:28:28,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8990 states to 8990 states and 11900 transitions. [2022-11-16 16:28:28,809 INFO L78 Accepts]: Start accepts. Automaton has 8990 states and 11900 transitions. Word has length 123 [2022-11-16 16:28:28,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 16:28:28,809 INFO L495 AbstractCegarLoop]: Abstraction has 8990 states and 11900 transitions. [2022-11-16 16:28:28,809 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-16 16:28:28,810 INFO L276 IsEmpty]: Start isEmpty. Operand 8990 states and 11900 transitions. [2022-11-16 16:28:28,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2022-11-16 16:28:28,812 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 16:28:28,812 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 16:28:28,812 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-11-16 16:28:28,813 INFO L420 AbstractCegarLoop]: === Iteration 21 === 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 32 more)] === [2022-11-16 16:28:28,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 16:28:28,813 INFO L85 PathProgramCache]: Analyzing trace with hash -1648973539, now seen corresponding path program 1 times [2022-11-16 16:28:28,813 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 16:28:28,814 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1575292038] [2022-11-16 16:28:28,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:28:28,814 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 16:28:28,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 16:28:29,227 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-16 16:28:29,227 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 16:28:29,227 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1575292038] [2022-11-16 16:28:29,228 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1575292038] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 16:28:29,228 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 16:28:29,228 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 16:28:29,228 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1102772601] [2022-11-16 16:28:29,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 16:28:29,229 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 16:28:29,229 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 16:28:29,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 16:28:29,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 16:28:29,229 INFO L87 Difference]: Start difference. First operand 8990 states and 11900 transitions. Second operand has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (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) [2022-11-16 16:28:32,407 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 [] [2022-11-16 16:28:36,491 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:28:40,327 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:28:41,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 16:28:41,091 INFO L93 Difference]: Finished difference Result 9069 states and 11977 transitions. [2022-11-16 16:28:41,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 16:28:41,091 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (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 105 [2022-11-16 16:28:41,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 16:28:41,115 INFO L225 Difference]: With dead ends: 9069 [2022-11-16 16:28:41,115 INFO L226 Difference]: Without dead ends: 9067 [2022-11-16 16:28:41,120 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-16 16:28:41,121 INFO L413 NwaCegarLoop]: 1954 mSDtfsCounter, 1420 mSDsluCounter, 3357 mSDsCounter, 0 mSdLazyCounter, 850 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1423 SdHoareTripleChecker+Valid, 5311 SdHoareTripleChecker+Invalid, 854 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 850 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.0s IncrementalHoareTripleChecker+Time [2022-11-16 16:28:41,121 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1423 Valid, 5311 Invalid, 854 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 850 Invalid, 3 Unknown, 0 Unchecked, 11.0s Time] [2022-11-16 16:28:41,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9067 states. [2022-11-16 16:28:41,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9067 to 9002. [2022-11-16 16:28:41,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9002 states, 5361 states have (on average 1.263010632344712) internal successors, (6771), 5582 states have internal predecessors, (6771), 2555 states have call successors, (2555), 1076 states have call predecessors, (2555), 1057 states have return successors, (2588), 2455 states have call predecessors, (2588), 2553 states have call successors, (2588) [2022-11-16 16:28:41,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9002 states to 9002 states and 11914 transitions. [2022-11-16 16:28:41,769 INFO L78 Accepts]: Start accepts. Automaton has 9002 states and 11914 transitions. Word has length 105 [2022-11-16 16:28:41,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 16:28:41,769 INFO L495 AbstractCegarLoop]: Abstraction has 9002 states and 11914 transitions. [2022-11-16 16:28:41,769 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (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) [2022-11-16 16:28:41,769 INFO L276 IsEmpty]: Start isEmpty. Operand 9002 states and 11914 transitions. [2022-11-16 16:28:41,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2022-11-16 16:28:41,771 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 16:28:41,772 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 16:28:41,772 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-11-16 16:28:41,772 INFO L420 AbstractCegarLoop]: === Iteration 22 === 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 32 more)] === [2022-11-16 16:28:41,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 16:28:41,772 INFO L85 PathProgramCache]: Analyzing trace with hash 916272892, now seen corresponding path program 1 times [2022-11-16 16:28:41,772 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 16:28:41,773 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1947745169] [2022-11-16 16:28:41,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:28:41,773 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 16:28:41,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 16:28:42,431 INFO L134 CoverageAnalysis]: Checked inductivity of 229 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 229 trivial. 0 not checked. [2022-11-16 16:28:42,431 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 16:28:42,432 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1947745169] [2022-11-16 16:28:42,432 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1947745169] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 16:28:42,432 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 16:28:42,432 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 16:28:42,432 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [603803153] [2022-11-16 16:28:42,432 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 16:28:42,433 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 16:28:42,433 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 16:28:42,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 16:28:42,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-16 16:28:42,434 INFO L87 Difference]: Start difference. First operand 9002 states and 11914 transitions. Second operand has 5 states, 5 states have (on average 8.2) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (20), 2 states have call predecessors, (20), 1 states have call successors, (20) [2022-11-16 16:28:46,315 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:28:52,324 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:28:55,522 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 [] [2022-11-16 16:28:55,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 16:28:55,973 INFO L93 Difference]: Finished difference Result 9086 states and 11996 transitions. [2022-11-16 16:28:55,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 16:28:55,976 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (20), 2 states have call predecessors, (20), 1 states have call successors, (20) Word has length 138 [2022-11-16 16:28:55,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 16:28:55,996 INFO L225 Difference]: With dead ends: 9086 [2022-11-16 16:28:55,996 INFO L226 Difference]: Without dead ends: 9084 [2022-11-16 16:28:55,999 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-16 16:28:55,999 INFO L413 NwaCegarLoop]: 1527 mSDtfsCounter, 161 mSDsluCounter, 4448 mSDsCounter, 0 mSdLazyCounter, 1072 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 162 SdHoareTripleChecker+Valid, 5975 SdHoareTripleChecker+Invalid, 1075 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1072 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.7s IncrementalHoareTripleChecker+Time [2022-11-16 16:28:56,000 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [162 Valid, 5975 Invalid, 1075 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1072 Invalid, 3 Unknown, 0 Unchecked, 12.7s Time] [2022-11-16 16:28:56,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9084 states. [2022-11-16 16:28:56,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9084 to 9074. [2022-11-16 16:28:56,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9074 states, 5401 states have (on average 1.259581558970561) internal successors, (6803), 5622 states have internal predecessors, (6803), 2571 states have call successors, (2571), 1092 states have call predecessors, (2571), 1073 states have return successors, (2604), 2471 states have call predecessors, (2604), 2569 states have call successors, (2604) [2022-11-16 16:28:56,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9074 states to 9074 states and 11978 transitions. [2022-11-16 16:28:56,648 INFO L78 Accepts]: Start accepts. Automaton has 9074 states and 11978 transitions. Word has length 138 [2022-11-16 16:28:56,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 16:28:56,648 INFO L495 AbstractCegarLoop]: Abstraction has 9074 states and 11978 transitions. [2022-11-16 16:28:56,648 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (20), 2 states have call predecessors, (20), 1 states have call successors, (20) [2022-11-16 16:28:56,648 INFO L276 IsEmpty]: Start isEmpty. Operand 9074 states and 11978 transitions. [2022-11-16 16:28:56,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-11-16 16:28:56,650 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 16:28:56,650 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 16:28:56,650 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-11-16 16:28:56,650 INFO L420 AbstractCegarLoop]: === Iteration 23 === 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 32 more)] === [2022-11-16 16:28:56,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 16:28:56,651 INFO L85 PathProgramCache]: Analyzing trace with hash -1133532582, now seen corresponding path program 1 times [2022-11-16 16:28:56,651 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 16:28:56,651 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1488637083] [2022-11-16 16:28:56,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:28:56,651 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 16:28:56,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 16:28:57,261 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-16 16:28:57,261 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 16:28:57,262 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1488637083] [2022-11-16 16:28:57,262 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1488637083] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 16:28:57,262 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 16:28:57,262 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 16:28:57,262 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1836593405] [2022-11-16 16:28:57,262 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 16:28:57,263 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 16:28:57,263 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 16:28:57,263 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 16:28:57,263 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 16:28:57,264 INFO L87 Difference]: Start difference. First operand 9074 states and 11978 transitions. Second operand has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (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) [2022-11-16 16:28:59,772 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:29:01,787 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:29:06,267 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:29:09,420 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:29:10,931 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:29:11,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 16:29:11,137 INFO L93 Difference]: Finished difference Result 9076 states and 11980 transitions. [2022-11-16 16:29:11,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 16:29:11,138 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (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 110 [2022-11-16 16:29:11,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 16:29:11,161 INFO L225 Difference]: With dead ends: 9076 [2022-11-16 16:29:11,161 INFO L226 Difference]: Without dead ends: 9074 [2022-11-16 16:29:11,165 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-16 16:29:11,166 INFO L413 NwaCegarLoop]: 1483 mSDtfsCounter, 1655 mSDsluCounter, 1676 mSDsCounter, 0 mSdLazyCounter, 555 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1658 SdHoareTripleChecker+Valid, 3159 SdHoareTripleChecker+Invalid, 557 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 555 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.1s IncrementalHoareTripleChecker+Time [2022-11-16 16:29:11,166 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1658 Valid, 3159 Invalid, 557 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 555 Invalid, 2 Unknown, 0 Unchecked, 13.1s Time] [2022-11-16 16:29:11,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9074 states. [2022-11-16 16:29:11,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9074 to 9072. [2022-11-16 16:29:11,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9072 states, 5400 states have (on average 1.2594444444444444) internal successors, (6801), 5620 states have internal predecessors, (6801), 2571 states have call successors, (2571), 1092 states have call predecessors, (2571), 1073 states have return successors, (2604), 2471 states have call predecessors, (2604), 2569 states have call successors, (2604) [2022-11-16 16:29:11,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9072 states to 9072 states and 11976 transitions. [2022-11-16 16:29:11,839 INFO L78 Accepts]: Start accepts. Automaton has 9072 states and 11976 transitions. Word has length 110 [2022-11-16 16:29:11,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 16:29:11,840 INFO L495 AbstractCegarLoop]: Abstraction has 9072 states and 11976 transitions. [2022-11-16 16:29:11,840 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (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) [2022-11-16 16:29:11,840 INFO L276 IsEmpty]: Start isEmpty. Operand 9072 states and 11976 transitions. [2022-11-16 16:29:11,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2022-11-16 16:29:11,843 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 16:29:11,843 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 16:29:11,843 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-11-16 16:29:11,843 INFO L420 AbstractCegarLoop]: === Iteration 24 === 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 32 more)] === [2022-11-16 16:29:11,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 16:29:11,844 INFO L85 PathProgramCache]: Analyzing trace with hash 1024805207, now seen corresponding path program 1 times [2022-11-16 16:29:11,845 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 16:29:11,845 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [448966130] [2022-11-16 16:29:11,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:29:11,845 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 16:29:11,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 16:29:12,181 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-16 16:29:12,182 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 16:29:12,182 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [448966130] [2022-11-16 16:29:12,182 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [448966130] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 16:29:12,182 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 16:29:12,182 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 16:29:12,182 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1940195942] [2022-11-16 16:29:12,183 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 16:29:12,183 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 16:29:12,183 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 16:29:12,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 16:29:12,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 16:29:12,184 INFO L87 Difference]: Start difference. First operand 9072 states and 11976 transitions. Second operand has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (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) [2022-11-16 16:29:14,691 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:29:16,714 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:29:20,617 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:29:23,730 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:29:24,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 16:29:24,143 INFO L93 Difference]: Finished difference Result 9075 states and 11979 transitions. [2022-11-16 16:29:24,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 16:29:24,144 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (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 115 [2022-11-16 16:29:24,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 16:29:24,223 INFO L225 Difference]: With dead ends: 9075 [2022-11-16 16:29:24,223 INFO L226 Difference]: Without dead ends: 9073 [2022-11-16 16:29:24,226 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-16 16:29:24,226 INFO L413 NwaCegarLoop]: 1479 mSDtfsCounter, 1644 mSDsluCounter, 1672 mSDsCounter, 0 mSdLazyCounter, 552 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1647 SdHoareTripleChecker+Valid, 3151 SdHoareTripleChecker+Invalid, 555 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 552 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.1s IncrementalHoareTripleChecker+Time [2022-11-16 16:29:24,227 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1647 Valid, 3151 Invalid, 555 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 552 Invalid, 3 Unknown, 0 Unchecked, 11.1s Time] [2022-11-16 16:29:24,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9073 states. [2022-11-16 16:29:24,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9073 to 9070. [2022-11-16 16:29:24,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9070 states, 5399 states have (on average 1.259307279125764) internal successors, (6799), 5618 states have internal predecessors, (6799), 2571 states have call successors, (2571), 1092 states have call predecessors, (2571), 1073 states have return successors, (2604), 2471 states have call predecessors, (2604), 2569 states have call successors, (2604) [2022-11-16 16:29:24,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9070 states to 9070 states and 11974 transitions. [2022-11-16 16:29:24,896 INFO L78 Accepts]: Start accepts. Automaton has 9070 states and 11974 transitions. Word has length 115 [2022-11-16 16:29:24,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 16:29:24,897 INFO L495 AbstractCegarLoop]: Abstraction has 9070 states and 11974 transitions. [2022-11-16 16:29:24,897 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (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) [2022-11-16 16:29:24,897 INFO L276 IsEmpty]: Start isEmpty. Operand 9070 states and 11974 transitions. [2022-11-16 16:29:24,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2022-11-16 16:29:24,900 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 16:29:24,900 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 16:29:24,900 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-11-16 16:29:24,900 INFO L420 AbstractCegarLoop]: === Iteration 25 === 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 32 more)] === [2022-11-16 16:29:24,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 16:29:24,901 INFO L85 PathProgramCache]: Analyzing trace with hash 235311897, now seen corresponding path program 1 times [2022-11-16 16:29:24,901 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 16:29:24,901 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [387343587] [2022-11-16 16:29:24,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:29:24,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 16:29:24,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 16:29:25,262 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-16 16:29:25,263 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 16:29:25,263 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [387343587] [2022-11-16 16:29:25,263 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [387343587] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 16:29:25,263 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 16:29:25,263 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 16:29:25,263 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [595157318] [2022-11-16 16:29:25,264 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 16:29:25,264 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 16:29:25,264 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 16:29:25,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 16:29:25,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 16:29:25,265 INFO L87 Difference]: Start difference. First operand 9070 states and 11974 transitions. Second operand has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (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) [2022-11-16 16:29:28,200 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:29:32,861 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:29:36,714 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.89s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:29:38,172 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:29:39,325 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:29:41,330 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.56s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:29:43,342 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 [] [2022-11-16 16:29:43,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 16:29:43,732 INFO L93 Difference]: Finished difference Result 9247 states and 12181 transitions. [2022-11-16 16:29:43,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 16:29:43,733 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (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 120 [2022-11-16 16:29:43,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 16:29:43,756 INFO L225 Difference]: With dead ends: 9247 [2022-11-16 16:29:43,757 INFO L226 Difference]: Without dead ends: 9245 [2022-11-16 16:29:43,761 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-16 16:29:43,761 INFO L413 NwaCegarLoop]: 1956 mSDtfsCounter, 1419 mSDsluCounter, 3355 mSDsCounter, 0 mSdLazyCounter, 856 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1422 SdHoareTripleChecker+Valid, 5311 SdHoareTripleChecker+Invalid, 860 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 856 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.5s IncrementalHoareTripleChecker+Time [2022-11-16 16:29:43,762 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1422 Valid, 5311 Invalid, 860 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 856 Invalid, 3 Unknown, 0 Unchecked, 17.5s Time] [2022-11-16 16:29:43,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9245 states. [2022-11-16 16:29:44,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9245 to 9088. [2022-11-16 16:29:44,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9088 states, 5408 states have (on average 1.2588757396449703) internal successors, (6808), 5627 states have internal predecessors, (6808), 2577 states have call successors, (2577), 1095 states have call predecessors, (2577), 1076 states have return successors, (2610), 2477 states have call predecessors, (2610), 2575 states have call successors, (2610) [2022-11-16 16:29:44,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9088 states to 9088 states and 11995 transitions. [2022-11-16 16:29:44,445 INFO L78 Accepts]: Start accepts. Automaton has 9088 states and 11995 transitions. Word has length 120 [2022-11-16 16:29:44,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 16:29:44,445 INFO L495 AbstractCegarLoop]: Abstraction has 9088 states and 11995 transitions. [2022-11-16 16:29:44,445 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (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) [2022-11-16 16:29:44,446 INFO L276 IsEmpty]: Start isEmpty. Operand 9088 states and 11995 transitions. [2022-11-16 16:29:44,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2022-11-16 16:29:44,448 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 16:29:44,448 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 16:29:44,448 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-11-16 16:29:44,448 INFO L420 AbstractCegarLoop]: === Iteration 26 === 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 32 more)] === [2022-11-16 16:29:44,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 16:29:44,449 INFO L85 PathProgramCache]: Analyzing trace with hash -146502176, now seen corresponding path program 1 times [2022-11-16 16:29:44,449 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 16:29:44,449 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [245456235] [2022-11-16 16:29:44,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:29:44,449 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 16:29:44,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 16:29:44,854 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-16 16:29:44,855 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 16:29:44,855 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [245456235] [2022-11-16 16:29:44,855 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [245456235] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 16:29:44,855 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 16:29:44,855 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 16:29:44,855 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1627054907] [2022-11-16 16:29:44,855 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 16:29:44,856 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 16:29:44,856 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 16:29:44,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 16:29:44,856 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 16:29:44,857 INFO L87 Difference]: Start difference. First operand 9088 states and 11995 transitions. Second operand has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (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) [2022-11-16 16:29:48,026 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 [] [2022-11-16 16:29:51,089 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:29:53,482 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:29:57,061 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 [] [2022-11-16 16:29:57,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 16:29:57,880 INFO L93 Difference]: Finished difference Result 9129 states and 12029 transitions. [2022-11-16 16:29:57,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 16:29:57,880 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (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 125 [2022-11-16 16:29:57,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 16:29:57,903 INFO L225 Difference]: With dead ends: 9129 [2022-11-16 16:29:57,903 INFO L226 Difference]: Without dead ends: 9127 [2022-11-16 16:29:57,906 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-16 16:29:57,907 INFO L413 NwaCegarLoop]: 1950 mSDtfsCounter, 1408 mSDsluCounter, 3349 mSDsCounter, 0 mSdLazyCounter, 850 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1411 SdHoareTripleChecker+Valid, 5299 SdHoareTripleChecker+Invalid, 854 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 850 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.1s IncrementalHoareTripleChecker+Time [2022-11-16 16:29:57,907 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1411 Valid, 5299 Invalid, 854 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 850 Invalid, 3 Unknown, 0 Unchecked, 12.1s Time] [2022-11-16 16:29:57,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9127 states. [2022-11-16 16:29:58,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9127 to 9094. [2022-11-16 16:29:58,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9094 states, 5411 states have (on average 1.2587322121604139) internal successors, (6811), 5630 states have internal predecessors, (6811), 2579 states have call successors, (2579), 1096 states have call predecessors, (2579), 1077 states have return successors, (2612), 2479 states have call predecessors, (2612), 2577 states have call successors, (2612) [2022-11-16 16:29:58,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9094 states to 9094 states and 12002 transitions. [2022-11-16 16:29:58,605 INFO L78 Accepts]: Start accepts. Automaton has 9094 states and 12002 transitions. Word has length 125 [2022-11-16 16:29:58,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 16:29:58,605 INFO L495 AbstractCegarLoop]: Abstraction has 9094 states and 12002 transitions. [2022-11-16 16:29:58,606 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (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) [2022-11-16 16:29:58,606 INFO L276 IsEmpty]: Start isEmpty. Operand 9094 states and 12002 transitions. [2022-11-16 16:29:58,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2022-11-16 16:29:58,609 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 16:29:58,609 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 16:29:58,609 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-11-16 16:29:58,610 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 32 more)] === [2022-11-16 16:29:58,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 16:29:58,610 INFO L85 PathProgramCache]: Analyzing trace with hash -1645004023, now seen corresponding path program 1 times [2022-11-16 16:29:58,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 16:29:58,611 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [979942289] [2022-11-16 16:29:58,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:29:58,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 16:29:58,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 16:30:00,523 INFO L134 CoverageAnalysis]: Checked inductivity of 176 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 176 trivial. 0 not checked. [2022-11-16 16:30:00,524 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 16:30:00,524 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [979942289] [2022-11-16 16:30:00,524 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [979942289] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 16:30:00,524 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 16:30:00,524 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-16 16:30:00,524 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [596372269] [2022-11-16 16:30:00,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 16:30:00,525 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 16:30:00,525 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 16:30:00,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 16:30:00,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-16 16:30:00,526 INFO L87 Difference]: Start difference. First operand 9094 states and 12002 transitions. Second operand has 6 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (20), 3 states have call predecessors, (20), 2 states have call successors, (20) [2022-11-16 16:30:04,996 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.79s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:30:07,021 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:30:09,033 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:30:11,057 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:30:18,131 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:30:21,464 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:30:23,479 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:30:25,518 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:30:27,959 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:30:29,970 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 [] [2022-11-16 16:30:30,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 16:30:30,241 INFO L93 Difference]: Finished difference Result 9096 states and 12004 transitions. [2022-11-16 16:30:30,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 16:30:30,242 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (20), 3 states have call predecessors, (20), 2 states have call successors, (20) Word has length 142 [2022-11-16 16:30:30,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 16:30:30,266 INFO L225 Difference]: With dead ends: 9096 [2022-11-16 16:30:30,266 INFO L226 Difference]: Without dead ends: 9094 [2022-11-16 16:30:30,270 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-11-16 16:30:30,271 INFO L413 NwaCegarLoop]: 1480 mSDtfsCounter, 1628 mSDsluCounter, 3887 mSDsCounter, 0 mSdLazyCounter, 1794 mSolverCounterSat, 0 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 27.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1634 SdHoareTripleChecker+Valid, 5367 SdHoareTripleChecker+Invalid, 1801 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1794 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 28.7s IncrementalHoareTripleChecker+Time [2022-11-16 16:30:30,271 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1634 Valid, 5367 Invalid, 1801 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1794 Invalid, 7 Unknown, 0 Unchecked, 28.7s Time] [2022-11-16 16:30:30,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9094 states. [2022-11-16 16:30:31,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9094 to 9092. [2022-11-16 16:30:31,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9092 states, 5410 states have (on average 1.257116451016636) internal successors, (6801), 5628 states have internal predecessors, (6801), 2579 states have call successors, (2579), 1096 states have call predecessors, (2579), 1077 states have return successors, (2612), 2479 states have call predecessors, (2612), 2577 states have call successors, (2612) [2022-11-16 16:30:31,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9092 states to 9092 states and 11992 transitions. [2022-11-16 16:30:31,080 INFO L78 Accepts]: Start accepts. Automaton has 9092 states and 11992 transitions. Word has length 142 [2022-11-16 16:30:31,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 16:30:31,081 INFO L495 AbstractCegarLoop]: Abstraction has 9092 states and 11992 transitions. [2022-11-16 16:30:31,081 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (20), 3 states have call predecessors, (20), 2 states have call successors, (20) [2022-11-16 16:30:31,081 INFO L276 IsEmpty]: Start isEmpty. Operand 9092 states and 11992 transitions. [2022-11-16 16:30:31,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-11-16 16:30:31,084 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 16:30:31,084 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 16:30:31,085 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-11-16 16:30:31,085 INFO L420 AbstractCegarLoop]: === Iteration 28 === 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 32 more)] === [2022-11-16 16:30:31,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 16:30:31,085 INFO L85 PathProgramCache]: Analyzing trace with hash -1208901268, now seen corresponding path program 1 times [2022-11-16 16:30:31,086 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 16:30:31,086 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [658230660] [2022-11-16 16:30:31,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:30:31,086 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 16:30:31,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 16:30:31,415 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-16 16:30:31,415 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 16:30:31,415 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [658230660] [2022-11-16 16:30:31,415 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [658230660] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 16:30:31,416 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 16:30:31,416 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 16:30:31,416 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1455700318] [2022-11-16 16:30:31,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 16:30:31,416 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 16:30:31,417 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 16:30:31,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 16:30:31,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 16:30:31,417 INFO L87 Difference]: Start difference. First operand 9092 states and 11992 transitions. Second operand has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (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) [2022-11-16 16:30:34,502 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 [] [2022-11-16 16:30:39,363 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:30:43,011 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:30:45,025 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:30:46,268 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:30:48,747 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:30:50,751 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:30:51,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 16:30:51,134 INFO L93 Difference]: Finished difference Result 9241 states and 12167 transitions. [2022-11-16 16:30:51,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 16:30:51,135 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (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 130 [2022-11-16 16:30:51,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 16:30:51,158 INFO L225 Difference]: With dead ends: 9241 [2022-11-16 16:30:51,158 INFO L226 Difference]: Without dead ends: 9239 [2022-11-16 16:30:51,164 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-16 16:30:51,164 INFO L413 NwaCegarLoop]: 1952 mSDtfsCounter, 1413 mSDsluCounter, 3349 mSDsCounter, 0 mSdLazyCounter, 854 mSolverCounterSat, 1 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1416 SdHoareTripleChecker+Valid, 5301 SdHoareTripleChecker+Invalid, 860 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 854 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.7s IncrementalHoareTripleChecker+Time [2022-11-16 16:30:51,165 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1416 Valid, 5301 Invalid, 860 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 854 Invalid, 5 Unknown, 0 Unchecked, 18.7s Time] [2022-11-16 16:30:51,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9239 states. [2022-11-16 16:30:51,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9239 to 9098. [2022-11-16 16:30:51,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9098 states, 5413 states have (on average 1.2569739515980047) internal successors, (6804), 5631 states have internal predecessors, (6804), 2581 states have call successors, (2581), 1097 states have call predecessors, (2581), 1078 states have return successors, (2614), 2481 states have call predecessors, (2614), 2579 states have call successors, (2614) [2022-11-16 16:30:51,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9098 states to 9098 states and 11999 transitions. [2022-11-16 16:30:51,977 INFO L78 Accepts]: Start accepts. Automaton has 9098 states and 11999 transitions. Word has length 130 [2022-11-16 16:30:51,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 16:30:51,978 INFO L495 AbstractCegarLoop]: Abstraction has 9098 states and 11999 transitions. [2022-11-16 16:30:51,978 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (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) [2022-11-16 16:30:51,978 INFO L276 IsEmpty]: Start isEmpty. Operand 9098 states and 11999 transitions. [2022-11-16 16:30:51,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2022-11-16 16:30:51,981 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 16:30:51,981 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 16:30:51,982 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-11-16 16:30:51,982 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ldv_check_alloc_flagsErr1ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-11-16 16:30:51,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 16:30:51,982 INFO L85 PathProgramCache]: Analyzing trace with hash -605851849, now seen corresponding path program 1 times [2022-11-16 16:30:51,983 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 16:30:51,983 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1510619658] [2022-11-16 16:30:51,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:30:51,983 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 16:30:52,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 16:30:52,468 INFO L134 CoverageAnalysis]: Checked inductivity of 176 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 176 trivial. 0 not checked. [2022-11-16 16:30:52,468 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 16:30:52,468 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1510619658] [2022-11-16 16:30:52,468 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1510619658] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 16:30:52,469 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 16:30:52,469 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 16:30:52,469 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [585051088] [2022-11-16 16:30:52,469 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 16:30:52,470 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 16:30:52,470 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 16:30:52,471 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 16:30:52,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 16:30:52,471 INFO L87 Difference]: Start difference. First operand 9098 states and 11999 transitions. Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-11-16 16:30:54,111 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:30:57,854 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:30:59,727 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:31:01,854 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.92s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:31:02,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 16:31:02,124 INFO L93 Difference]: Finished difference Result 15760 states and 20925 transitions. [2022-11-16 16:31:02,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 16:31:02,125 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 145 [2022-11-16 16:31:02,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 16:31:02,150 INFO L225 Difference]: With dead ends: 15760 [2022-11-16 16:31:02,150 INFO L226 Difference]: Without dead ends: 9080 [2022-11-16 16:31:02,178 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 [2022-11-16 16:31:02,179 INFO L413 NwaCegarLoop]: 1475 mSDtfsCounter, 1615 mSDsluCounter, 193 mSDsCounter, 0 mSdLazyCounter, 303 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1616 SdHoareTripleChecker+Valid, 1668 SdHoareTripleChecker+Invalid, 304 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 303 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.6s IncrementalHoareTripleChecker+Time [2022-11-16 16:31:02,179 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1616 Valid, 1668 Invalid, 304 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 303 Invalid, 1 Unknown, 0 Unchecked, 8.6s Time] [2022-11-16 16:31:02,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9080 states. [2022-11-16 16:31:03,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9080 to 9078. [2022-11-16 16:31:03,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9078 states, 5394 states have (on average 1.2545420837968113) internal successors, (6767), 5611 states have internal predecessors, (6767), 2581 states have call successors, (2581), 1097 states have call predecessors, (2581), 1078 states have return successors, (2614), 2481 states have call predecessors, (2614), 2579 states have call successors, (2614) [2022-11-16 16:31:03,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9078 states to 9078 states and 11962 transitions. [2022-11-16 16:31:03,074 INFO L78 Accepts]: Start accepts. Automaton has 9078 states and 11962 transitions. Word has length 145 [2022-11-16 16:31:03,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 16:31:03,074 INFO L495 AbstractCegarLoop]: Abstraction has 9078 states and 11962 transitions. [2022-11-16 16:31:03,075 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-11-16 16:31:03,075 INFO L276 IsEmpty]: Start isEmpty. Operand 9078 states and 11962 transitions. [2022-11-16 16:31:03,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-11-16 16:31:03,078 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 16:31:03,079 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 16:31:03,079 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-11-16 16:31:03,079 INFO L420 AbstractCegarLoop]: === Iteration 30 === 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 32 more)] === [2022-11-16 16:31:03,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 16:31:03,080 INFO L85 PathProgramCache]: Analyzing trace with hash -1574203319, now seen corresponding path program 1 times [2022-11-16 16:31:03,080 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 16:31:03,080 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [232755227] [2022-11-16 16:31:03,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:31:03,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 16:31:03,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 16:31:03,403 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-16 16:31:03,403 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 16:31:03,403 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [232755227] [2022-11-16 16:31:03,403 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [232755227] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 16:31:03,403 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 16:31:03,404 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 16:31:03,404 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1421018762] [2022-11-16 16:31:03,404 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 16:31:03,404 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 16:31:03,404 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 16:31:03,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 16:31:03,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 16:31:03,405 INFO L87 Difference]: Start difference. First operand 9078 states and 11962 transitions. Second operand has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (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) [2022-11-16 16:31:06,294 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:31:10,510 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:31:14,595 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:31:16,499 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.67s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:31:17,870 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:31:18,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 16:31:18,125 INFO L93 Difference]: Finished difference Result 9080 states and 11964 transitions. [2022-11-16 16:31:18,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 16:31:18,125 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (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 135 [2022-11-16 16:31:18,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 16:31:18,152 INFO L225 Difference]: With dead ends: 9080 [2022-11-16 16:31:18,152 INFO L226 Difference]: Without dead ends: 8944 [2022-11-16 16:31:18,161 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 [2022-11-16 16:31:18,162 INFO L413 NwaCegarLoop]: 1473 mSDtfsCounter, 1639 mSDsluCounter, 1666 mSDsCounter, 0 mSdLazyCounter, 556 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1640 SdHoareTripleChecker+Valid, 3139 SdHoareTripleChecker+Invalid, 558 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 556 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.7s IncrementalHoareTripleChecker+Time [2022-11-16 16:31:18,162 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1640 Valid, 3139 Invalid, 558 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 556 Invalid, 2 Unknown, 0 Unchecked, 13.7s Time] [2022-11-16 16:31:18,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8944 states. [2022-11-16 16:31:19,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8944 to 8942. [2022-11-16 16:31:19,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8942 states, 5326 states have (on average 1.2568531731130304) internal successors, (6694), 5539 states have internal predecessors, (6694), 2535 states have call successors, (2535), 1077 states have call predecessors, (2535), 1057 states have return successors, (2566), 2437 states have call predecessors, (2566), 2531 states have call successors, (2566) [2022-11-16 16:31:19,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8942 states to 8942 states and 11795 transitions. [2022-11-16 16:31:19,221 INFO L78 Accepts]: Start accepts. Automaton has 8942 states and 11795 transitions. Word has length 135 [2022-11-16 16:31:19,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 16:31:19,221 INFO L495 AbstractCegarLoop]: Abstraction has 8942 states and 11795 transitions. [2022-11-16 16:31:19,222 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (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) [2022-11-16 16:31:19,222 INFO L276 IsEmpty]: Start isEmpty. Operand 8942 states and 11795 transitions. [2022-11-16 16:31:19,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2022-11-16 16:31:19,225 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 16:31:19,225 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 16:31:19,225 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-11-16 16:31:19,226 INFO L420 AbstractCegarLoop]: === Iteration 31 === 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 32 more)] === [2022-11-16 16:31:19,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 16:31:19,226 INFO L85 PathProgramCache]: Analyzing trace with hash -1166197304, now seen corresponding path program 1 times [2022-11-16 16:31:19,227 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 16:31:19,227 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2124003017] [2022-11-16 16:31:19,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:31:19,227 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 16:31:19,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 16:31:19,730 INFO L134 CoverageAnalysis]: Checked inductivity of 176 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 174 trivial. 0 not checked. [2022-11-16 16:31:19,730 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 16:31:19,730 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2124003017] [2022-11-16 16:31:19,730 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2124003017] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 16:31:19,730 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 16:31:19,730 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 16:31:19,731 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1405907910] [2022-11-16 16:31:19,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 16:31:19,731 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 16:31:19,731 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 16:31:19,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 16:31:19,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 16:31:19,732 INFO L87 Difference]: Start difference. First operand 8942 states and 11795 transitions. Second operand has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 3 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-11-16 16:31:22,615 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 [] [2022-11-16 16:31:26,813 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:31:29,869 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:31:30,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 16:31:30,940 INFO L93 Difference]: Finished difference Result 19563 states and 26323 transitions. [2022-11-16 16:31:30,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 16:31:30,941 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 3 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 155 [2022-11-16 16:31:30,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 16:31:30,978 INFO L225 Difference]: With dead ends: 19563 [2022-11-16 16:31:30,978 INFO L226 Difference]: Without dead ends: 10642 [2022-11-16 16:31:31,017 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 [2022-11-16 16:31:31,018 INFO L413 NwaCegarLoop]: 1882 mSDtfsCounter, 234 mSDsluCounter, 1551 mSDsCounter, 0 mSdLazyCounter, 573 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 386 SdHoareTripleChecker+Valid, 3433 SdHoareTripleChecker+Invalid, 576 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 573 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.8s IncrementalHoareTripleChecker+Time [2022-11-16 16:31:31,019 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [386 Valid, 3433 Invalid, 576 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 573 Invalid, 3 Unknown, 0 Unchecked, 9.8s Time] [2022-11-16 16:31:31,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10642 states. [2022-11-16 16:31:32,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10642 to 8970. [2022-11-16 16:31:32,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8970 states, 5347 states have (on average 1.2558443987282588) internal successors, (6715), 5560 states have internal predecessors, (6715), 2542 states have call successors, (2542), 1077 states have call predecessors, (2542), 1057 states have return successors, (2573), 2444 states have call predecessors, (2573), 2538 states have call successors, (2573) [2022-11-16 16:31:32,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8970 states to 8970 states and 11830 transitions. [2022-11-16 16:31:32,304 INFO L78 Accepts]: Start accepts. Automaton has 8970 states and 11830 transitions. Word has length 155 [2022-11-16 16:31:32,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 16:31:32,304 INFO L495 AbstractCegarLoop]: Abstraction has 8970 states and 11830 transitions. [2022-11-16 16:31:32,304 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 3 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-11-16 16:31:32,304 INFO L276 IsEmpty]: Start isEmpty. Operand 8970 states and 11830 transitions. [2022-11-16 16:31:32,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2022-11-16 16:31:32,307 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 16:31:32,307 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 16:31:32,308 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-11-16 16:31:32,308 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ldv_assert_linux_kernel_locking_spinlock__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 32 more)] === [2022-11-16 16:31:32,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 16:31:32,309 INFO L85 PathProgramCache]: Analyzing trace with hash 704954887, now seen corresponding path program 1 times [2022-11-16 16:31:32,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 16:31:32,309 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [467762474] [2022-11-16 16:31:32,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:31:32,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 16:31:32,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 16:31:32,961 INFO L134 CoverageAnalysis]: Checked inductivity of 208 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 208 trivial. 0 not checked. [2022-11-16 16:31:32,962 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 16:31:32,962 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [467762474] [2022-11-16 16:31:32,962 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [467762474] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 16:31:32,962 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 16:31:32,962 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 16:31:32,962 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1654231380] [2022-11-16 16:31:32,962 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 16:31:32,963 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 16:31:32,963 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 16:31:32,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 16:31:32,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-16 16:31:32,964 INFO L87 Difference]: Start difference. First operand 8970 states and 11830 transitions. Second operand has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (30), 3 states have call predecessors, (30), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2022-11-16 16:31:36,268 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:31:40,435 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:31:42,195 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:31:45,035 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.92s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:31:48,086 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 [] [2022-11-16 16:31:48,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 16:31:48,966 INFO L93 Difference]: Finished difference Result 9143 states and 11976 transitions. [2022-11-16 16:31:48,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 16:31:48,967 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (30), 3 states have call predecessors, (30), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 164 [2022-11-16 16:31:48,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 16:31:48,991 INFO L225 Difference]: With dead ends: 9143 [2022-11-16 16:31:48,991 INFO L226 Difference]: Without dead ends: 9141 [2022-11-16 16:31:48,994 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-16 16:31:48,995 INFO L413 NwaCegarLoop]: 1499 mSDtfsCounter, 398 mSDsluCounter, 4260 mSDsCounter, 0 mSdLazyCounter, 1031 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 400 SdHoareTripleChecker+Valid, 5759 SdHoareTripleChecker+Invalid, 1035 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1031 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.9s IncrementalHoareTripleChecker+Time [2022-11-16 16:31:48,995 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [400 Valid, 5759 Invalid, 1035 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1031 Invalid, 3 Unknown, 0 Unchecked, 14.9s Time] [2022-11-16 16:31:49,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9141 states. [2022-11-16 16:31:49,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9141 to 9138. [2022-11-16 16:31:49,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9138 states, 5439 states have (on average 1.2511491082919655) internal successors, (6805), 5652 states have internal predecessors, (6805), 2562 states have call successors, (2562), 1133 states have call predecessors, (2562), 1113 states have return successors, (2593), 2464 states have call predecessors, (2593), 2558 states have call successors, (2593) [2022-11-16 16:31:49,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9138 states to 9138 states and 11960 transitions. [2022-11-16 16:31:49,999 INFO L78 Accepts]: Start accepts. Automaton has 9138 states and 11960 transitions. Word has length 164 [2022-11-16 16:31:49,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 16:31:49,999 INFO L495 AbstractCegarLoop]: Abstraction has 9138 states and 11960 transitions. [2022-11-16 16:31:49,999 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (30), 3 states have call predecessors, (30), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2022-11-16 16:31:49,999 INFO L276 IsEmpty]: Start isEmpty. Operand 9138 states and 11960 transitions. [2022-11-16 16:31:50,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2022-11-16 16:31:50,004 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 16:31:50,004 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 16:31:50,004 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-11-16 16:31:50,004 INFO L420 AbstractCegarLoop]: === Iteration 33 === 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 32 more)] === [2022-11-16 16:31:50,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 16:31:50,005 INFO L85 PathProgramCache]: Analyzing trace with hash 2126495694, now seen corresponding path program 1 times [2022-11-16 16:31:50,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 16:31:50,006 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [607027198] [2022-11-16 16:31:50,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:31:50,006 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 16:31:50,193 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-16 16:31:50,194 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [454539904] [2022-11-16 16:31:50,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:31:50,194 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 16:31:50,195 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a2e7ad-cbec-46fb-8f46-1228591dd582/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 16:31:50,202 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a2e7ad-cbec-46fb-8f46-1228591dd582/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 16:31:50,235 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a2e7ad-cbec-46fb-8f46-1228591dd582/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-16 16:31:51,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 16:31:51,975 INFO L263 TraceCheckSpWp]: Trace formula consists of 3694 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-16 16:31:52,010 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 16:31:52,985 INFO L134 CoverageAnalysis]: Checked inductivity of 186 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 186 trivial. 0 not checked. [2022-11-16 16:31:52,985 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 16:31:52,985 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 16:31:52,986 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [607027198] [2022-11-16 16:31:52,986 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-16 16:31:52,986 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [454539904] [2022-11-16 16:31:52,986 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [454539904] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 16:31:52,986 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 16:31:52,986 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 16:31:52,987 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1394354412] [2022-11-16 16:31:52,987 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 16:31:52,987 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 16:31:52,987 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 16:31:52,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 16:31:52,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-16 16:31:52,992 INFO L87 Difference]: Start difference. First operand 9138 states and 11960 transitions. Second operand has 5 states, 5 states have (on average 14.0) internal successors, (70), 3 states have internal predecessors, (70), 1 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2022-11-16 16:31:57,916 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 [] [2022-11-16 16:32:01,928 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:32:06,846 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:32:07,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 16:32:07,623 INFO L93 Difference]: Finished difference Result 9181 states and 11992 transitions. [2022-11-16 16:32:07,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 16:32:07,624 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 3 states have internal predecessors, (70), 1 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) Word has length 160 [2022-11-16 16:32:07,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 16:32:07,662 INFO L225 Difference]: With dead ends: 9181 [2022-11-16 16:32:07,662 INFO L226 Difference]: Without dead ends: 9179 [2022-11-16 16:32:07,669 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 156 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-16 16:32:07,670 INFO L413 NwaCegarLoop]: 1470 mSDtfsCounter, 1516 mSDsluCounter, 3158 mSDsCounter, 0 mSdLazyCounter, 817 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1518 SdHoareTripleChecker+Valid, 4628 SdHoareTripleChecker+Invalid, 821 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 817 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.3s IncrementalHoareTripleChecker+Time [2022-11-16 16:32:07,670 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1518 Valid, 4628 Invalid, 821 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 817 Invalid, 3 Unknown, 0 Unchecked, 13.3s Time] [2022-11-16 16:32:07,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9179 states. [2022-11-16 16:32:08,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9179 to 9176. [2022-11-16 16:32:08,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9176 states, 5465 states have (on average 1.248490393412626) internal successors, (6823), 5678 states have internal predecessors, (6823), 2562 states have call successors, (2562), 1145 states have call predecessors, (2562), 1125 states have return successors, (2593), 2464 states have call predecessors, (2593), 2558 states have call successors, (2593) [2022-11-16 16:32:08,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9176 states to 9176 states and 11978 transitions. [2022-11-16 16:32:08,607 INFO L78 Accepts]: Start accepts. Automaton has 9176 states and 11978 transitions. Word has length 160 [2022-11-16 16:32:08,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 16:32:08,607 INFO L495 AbstractCegarLoop]: Abstraction has 9176 states and 11978 transitions. [2022-11-16 16:32:08,607 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 3 states have internal predecessors, (70), 1 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2022-11-16 16:32:08,607 INFO L276 IsEmpty]: Start isEmpty. Operand 9176 states and 11978 transitions. [2022-11-16 16:32:08,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2022-11-16 16:32:08,611 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 16:32:08,611 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 16:32:08,633 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a2e7ad-cbec-46fb-8f46-1228591dd582/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-16 16:32:08,827 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a2e7ad-cbec-46fb-8f46-1228591dd582/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 16:32:08,827 INFO L420 AbstractCegarLoop]: === Iteration 34 === 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 32 more)] === [2022-11-16 16:32:08,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 16:32:08,827 INFO L85 PathProgramCache]: Analyzing trace with hash 694359029, now seen corresponding path program 1 times [2022-11-16 16:32:08,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 16:32:08,828 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1318703309] [2022-11-16 16:32:08,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:32:08,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 16:32:09,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 16:32:09,445 INFO L134 CoverageAnalysis]: Checked inductivity of 186 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 186 trivial. 0 not checked. [2022-11-16 16:32:09,445 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 16:32:09,445 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1318703309] [2022-11-16 16:32:09,446 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1318703309] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 16:32:09,446 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 16:32:09,446 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 16:32:09,446 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [906695542] [2022-11-16 16:32:09,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 16:32:09,447 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 16:32:09,447 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 16:32:09,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 16:32:09,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 16:32:09,447 INFO L87 Difference]: Start difference. First operand 9176 states and 11978 transitions. Second operand has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-11-16 16:32:12,728 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:32:16,787 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:32:21,365 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 [] [2022-11-16 16:32:23,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 16:32:23,459 INFO L93 Difference]: Finished difference Result 18759 states and 25402 transitions. [2022-11-16 16:32:23,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 16:32:23,460 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 163 [2022-11-16 16:32:23,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 16:32:23,494 INFO L225 Difference]: With dead ends: 18759 [2022-11-16 16:32:23,494 INFO L226 Difference]: Without dead ends: 11890 [2022-11-16 16:32:23,512 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-16 16:32:23,513 INFO L413 NwaCegarLoop]: 2046 mSDtfsCounter, 625 mSDsluCounter, 3479 mSDsCounter, 0 mSdLazyCounter, 900 mSolverCounterSat, 257 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 785 SdHoareTripleChecker+Valid, 5525 SdHoareTripleChecker+Invalid, 1160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 257 IncrementalHoareTripleChecker+Valid, 900 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.3s IncrementalHoareTripleChecker+Time [2022-11-16 16:32:23,513 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [785 Valid, 5525 Invalid, 1160 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [257 Valid, 900 Invalid, 3 Unknown, 0 Unchecked, 12.3s Time] [2022-11-16 16:32:23,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11890 states. [2022-11-16 16:32:24,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11890 to 9180. [2022-11-16 16:32:24,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9180 states, 5469 states have (on average 1.248308648747486) internal successors, (6827), 5682 states have internal predecessors, (6827), 2562 states have call successors, (2562), 1145 states have call predecessors, (2562), 1125 states have return successors, (2593), 2464 states have call predecessors, (2593), 2558 states have call successors, (2593) [2022-11-16 16:32:24,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9180 states to 9180 states and 11982 transitions. [2022-11-16 16:32:24,654 INFO L78 Accepts]: Start accepts. Automaton has 9180 states and 11982 transitions. Word has length 163 [2022-11-16 16:32:24,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 16:32:24,654 INFO L495 AbstractCegarLoop]: Abstraction has 9180 states and 11982 transitions. [2022-11-16 16:32:24,654 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-11-16 16:32:24,654 INFO L276 IsEmpty]: Start isEmpty. Operand 9180 states and 11982 transitions. [2022-11-16 16:32:24,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-11-16 16:32:24,656 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 16:32:24,657 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 5, 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] [2022-11-16 16:32:24,657 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-11-16 16:32:24,657 INFO L420 AbstractCegarLoop]: === Iteration 35 === 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 32 more)] === [2022-11-16 16:32:24,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 16:32:24,658 INFO L85 PathProgramCache]: Analyzing trace with hash -837915033, now seen corresponding path program 1 times [2022-11-16 16:32:24,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 16:32:24,658 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [542258167] [2022-11-16 16:32:24,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:32:24,659 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 16:32:24,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 16:32:25,332 INFO L134 CoverageAnalysis]: Checked inductivity of 193 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2022-11-16 16:32:25,332 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 16:32:25,332 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [542258167] [2022-11-16 16:32:25,333 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [542258167] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 16:32:25,333 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 16:32:25,333 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 16:32:25,333 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1817676340] [2022-11-16 16:32:25,333 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 16:32:25,334 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 16:32:25,334 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 16:32:25,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 16:32:25,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-16 16:32:25,334 INFO L87 Difference]: Start difference. First operand 9180 states and 11982 transitions. Second operand has 5 states, 5 states have (on average 14.0) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (23), 3 states have call predecessors, (23), 2 states have call successors, (23) [2022-11-16 16:32:29,632 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 [] [2022-11-16 16:32:31,640 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:32:33,646 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:32:38,047 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:32:43,518 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:32:46,508 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 [] [2022-11-16 16:32:49,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 16:32:49,130 INFO L93 Difference]: Finished difference Result 16965 states and 22449 transitions. [2022-11-16 16:32:49,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 16:32:49,131 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (23), 3 states have call predecessors, (23), 2 states have call successors, (23) Word has length 165 [2022-11-16 16:32:49,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 16:32:49,171 INFO L225 Difference]: With dead ends: 16965 [2022-11-16 16:32:49,172 INFO L226 Difference]: Without dead ends: 10092 [2022-11-16 16:32:49,192 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-16 16:32:49,193 INFO L413 NwaCegarLoop]: 1813 mSDtfsCounter, 306 mSDsluCounter, 5027 mSDsCounter, 0 mSdLazyCounter, 1134 mSolverCounterSat, 2 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 468 SdHoareTripleChecker+Valid, 6840 SdHoareTripleChecker+Invalid, 1141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1134 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.3s IncrementalHoareTripleChecker+Time [2022-11-16 16:32:49,194 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [468 Valid, 6840 Invalid, 1141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1134 Invalid, 5 Unknown, 0 Unchecked, 22.3s Time] [2022-11-16 16:32:49,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10092 states. [2022-11-16 16:32:50,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10092 to 9188. [2022-11-16 16:32:50,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9188 states, 5475 states have (on average 1.2480365296803653) internal successors, (6833), 5688 states have internal predecessors, (6833), 2562 states have call successors, (2562), 1145 states have call predecessors, (2562), 1127 states have return successors, (2597), 2466 states have call predecessors, (2597), 2558 states have call successors, (2597) [2022-11-16 16:32:50,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9188 states to 9188 states and 11992 transitions. [2022-11-16 16:32:50,202 INFO L78 Accepts]: Start accepts. Automaton has 9188 states and 11992 transitions. Word has length 165 [2022-11-16 16:32:50,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 16:32:50,202 INFO L495 AbstractCegarLoop]: Abstraction has 9188 states and 11992 transitions. [2022-11-16 16:32:50,203 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (23), 3 states have call predecessors, (23), 2 states have call successors, (23) [2022-11-16 16:32:50,203 INFO L276 IsEmpty]: Start isEmpty. Operand 9188 states and 11992 transitions. [2022-11-16 16:32:50,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2022-11-16 16:32:50,205 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 16:32:50,205 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 16:32:50,205 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-11-16 16:32:50,205 INFO L420 AbstractCegarLoop]: === Iteration 36 === 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 32 more)] === [2022-11-16 16:32:50,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 16:32:50,206 INFO L85 PathProgramCache]: Analyzing trace with hash 587313686, now seen corresponding path program 1 times [2022-11-16 16:32:50,206 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 16:32:50,206 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1913541297] [2022-11-16 16:32:50,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:32:50,206 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 16:32:50,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 16:32:51,209 INFO L134 CoverageAnalysis]: Checked inductivity of 184 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 182 trivial. 0 not checked. [2022-11-16 16:32:51,209 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 16:32:51,210 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1913541297] [2022-11-16 16:32:51,210 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1913541297] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 16:32:51,210 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 16:32:51,210 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-16 16:32:51,211 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1777576669] [2022-11-16 16:32:51,211 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 16:32:51,211 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 16:32:51,212 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 16:32:51,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 16:32:51,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-16 16:32:51,213 INFO L87 Difference]: Start difference. First operand 9188 states and 11992 transitions. Second operand has 7 states, 6 states have (on average 12.5) internal successors, (75), 5 states have internal predecessors, (75), 3 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (25), 4 states have call predecessors, (25), 2 states have call successors, (25) [2022-11-16 16:32:55,231 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 [] [2022-11-16 16:33:01,089 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:33:07,568 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:33:09,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 16:33:09,912 INFO L93 Difference]: Finished difference Result 20150 states and 26895 transitions. [2022-11-16 16:33:09,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 16:33:09,913 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 12.5) internal successors, (75), 5 states have internal predecessors, (75), 3 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (25), 4 states have call predecessors, (25), 2 states have call successors, (25) Word has length 169 [2022-11-16 16:33:09,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 16:33:09,946 INFO L225 Difference]: With dead ends: 20150 [2022-11-16 16:33:09,947 INFO L226 Difference]: Without dead ends: 10983 [2022-11-16 16:33:09,966 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-11-16 16:33:09,967 INFO L413 NwaCegarLoop]: 1881 mSDtfsCounter, 237 mSDsluCounter, 9049 mSDsCounter, 0 mSdLazyCounter, 1871 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 395 SdHoareTripleChecker+Valid, 10930 SdHoareTripleChecker+Invalid, 1875 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1871 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.0s IncrementalHoareTripleChecker+Time [2022-11-16 16:33:09,967 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [395 Valid, 10930 Invalid, 1875 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 1871 Invalid, 3 Unknown, 0 Unchecked, 17.0s Time] [2022-11-16 16:33:09,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10983 states. [2022-11-16 16:33:10,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10983 to 9223. [2022-11-16 16:33:10,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9223 states, 5496 states have (on average 1.247088791848617) internal successors, (6854), 5709 states have internal predecessors, (6854), 2562 states have call successors, (2562), 1145 states have call predecessors, (2562), 1141 states have return successors, (2616), 2480 states have call predecessors, (2616), 2558 states have call successors, (2616) [2022-11-16 16:33:11,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9223 states to 9223 states and 12032 transitions. [2022-11-16 16:33:11,031 INFO L78 Accepts]: Start accepts. Automaton has 9223 states and 12032 transitions. Word has length 169 [2022-11-16 16:33:11,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 16:33:11,031 INFO L495 AbstractCegarLoop]: Abstraction has 9223 states and 12032 transitions. [2022-11-16 16:33:11,031 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 12.5) internal successors, (75), 5 states have internal predecessors, (75), 3 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (25), 4 states have call predecessors, (25), 2 states have call successors, (25) [2022-11-16 16:33:11,032 INFO L276 IsEmpty]: Start isEmpty. Operand 9223 states and 12032 transitions. [2022-11-16 16:33:11,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2022-11-16 16:33:11,035 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 16:33:11,036 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 5, 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] [2022-11-16 16:33:11,036 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-11-16 16:33:11,036 INFO L420 AbstractCegarLoop]: === Iteration 37 === 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 32 more)] === [2022-11-16 16:33:11,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 16:33:11,037 INFO L85 PathProgramCache]: Analyzing trace with hash -1597829643, now seen corresponding path program 1 times [2022-11-16 16:33:11,037 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 16:33:11,037 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [379881830] [2022-11-16 16:33:11,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:33:11,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 16:33:11,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 16:33:11,569 INFO L134 CoverageAnalysis]: Checked inductivity of 193 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2022-11-16 16:33:11,569 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 16:33:11,569 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [379881830] [2022-11-16 16:33:11,569 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [379881830] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 16:33:11,569 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 16:33:11,570 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 16:33:11,570 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [674428467] [2022-11-16 16:33:11,570 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 16:33:11,570 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 16:33:11,571 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 16:33:11,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 16:33:11,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 16:33:11,572 INFO L87 Difference]: Start difference. First operand 9223 states and 12032 transitions. Second operand has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2022-11-16 16:33:14,631 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:33:18,442 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:33:22,252 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:33:23,946 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.69s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:33:25,962 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 [] [2022-11-16 16:33:26,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 16:33:26,868 INFO L93 Difference]: Finished difference Result 19089 states and 25065 transitions. [2022-11-16 16:33:26,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 16:33:26,868 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 170 [2022-11-16 16:33:26,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 16:33:26,894 INFO L225 Difference]: With dead ends: 19089 [2022-11-16 16:33:26,895 INFO L226 Difference]: Without dead ends: 9887 [2022-11-16 16:33:26,913 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 [2022-11-16 16:33:26,913 INFO L413 NwaCegarLoop]: 1465 mSDtfsCounter, 98 mSDsluCounter, 2841 mSDsCounter, 0 mSdLazyCounter, 755 mSolverCounterSat, 27 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 4306 SdHoareTripleChecker+Invalid, 785 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 755 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.9s IncrementalHoareTripleChecker+Time [2022-11-16 16:33:26,913 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [111 Valid, 4306 Invalid, 785 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 755 Invalid, 3 Unknown, 0 Unchecked, 13.9s Time] [2022-11-16 16:33:26,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9887 states. [2022-11-16 16:33:27,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9887 to 9245. [2022-11-16 16:33:27,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9245 states, 5518 states have (on average 1.2461036607466474) internal successors, (6876), 5731 states have internal predecessors, (6876), 2562 states have call successors, (2562), 1145 states have call predecessors, (2562), 1141 states have return successors, (2616), 2480 states have call predecessors, (2616), 2558 states have call successors, (2616) [2022-11-16 16:33:27,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9245 states to 9245 states and 12054 transitions. [2022-11-16 16:33:28,000 INFO L78 Accepts]: Start accepts. Automaton has 9245 states and 12054 transitions. Word has length 170 [2022-11-16 16:33:28,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 16:33:28,001 INFO L495 AbstractCegarLoop]: Abstraction has 9245 states and 12054 transitions. [2022-11-16 16:33:28,001 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2022-11-16 16:33:28,001 INFO L276 IsEmpty]: Start isEmpty. Operand 9245 states and 12054 transitions. [2022-11-16 16:33:28,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2022-11-16 16:33:28,003 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 16:33:28,003 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 16:33:28,004 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-11-16 16:33:28,004 INFO L420 AbstractCegarLoop]: === Iteration 38 === 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 32 more)] === [2022-11-16 16:33:28,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 16:33:28,005 INFO L85 PathProgramCache]: Analyzing trace with hash 543298244, now seen corresponding path program 1 times [2022-11-16 16:33:28,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 16:33:28,005 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1958669239] [2022-11-16 16:33:28,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:33:28,005 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 16:33:28,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 16:33:28,526 INFO L134 CoverageAnalysis]: Checked inductivity of 186 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 186 trivial. 0 not checked. [2022-11-16 16:33:28,527 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 16:33:28,527 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1958669239] [2022-11-16 16:33:28,527 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1958669239] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 16:33:28,527 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 16:33:28,527 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 16:33:28,527 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1617840228] [2022-11-16 16:33:28,527 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 16:33:28,528 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 16:33:28,528 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 16:33:28,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 16:33:28,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 16:33:28,529 INFO L87 Difference]: Start difference. First operand 9245 states and 12054 transitions. Second operand has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-11-16 16:33:31,581 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 [] [2022-11-16 16:33:35,780 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:33:39,353 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:33:41,314 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.96s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:33:43,002 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.69s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:33:45,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 16:33:45,669 INFO L93 Difference]: Finished difference Result 21278 states and 29434 transitions. [2022-11-16 16:33:45,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 16:33:45,669 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 168 [2022-11-16 16:33:45,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 16:33:45,708 INFO L225 Difference]: With dead ends: 21278 [2022-11-16 16:33:45,708 INFO L226 Difference]: Without dead ends: 14354 [2022-11-16 16:33:45,728 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 [2022-11-16 16:33:45,728 INFO L413 NwaCegarLoop]: 2452 mSDtfsCounter, 1012 mSDsluCounter, 4020 mSDsCounter, 0 mSdLazyCounter, 1000 mSolverCounterSat, 345 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1364 SdHoareTripleChecker+Valid, 6472 SdHoareTripleChecker+Invalid, 1347 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 345 IncrementalHoareTripleChecker+Valid, 1000 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.8s IncrementalHoareTripleChecker+Time [2022-11-16 16:33:45,729 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1364 Valid, 6472 Invalid, 1347 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [345 Valid, 1000 Invalid, 2 Unknown, 0 Unchecked, 14.8s Time] [2022-11-16 16:33:45,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14354 states. [2022-11-16 16:33:46,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14354 to 9249. [2022-11-16 16:33:46,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9249 states, 5522 states have (on average 1.2459253893516842) internal successors, (6880), 5735 states have internal predecessors, (6880), 2562 states have call successors, (2562), 1145 states have call predecessors, (2562), 1141 states have return successors, (2616), 2480 states have call predecessors, (2616), 2558 states have call successors, (2616) [2022-11-16 16:33:46,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9249 states to 9249 states and 12058 transitions. [2022-11-16 16:33:46,914 INFO L78 Accepts]: Start accepts. Automaton has 9249 states and 12058 transitions. Word has length 168 [2022-11-16 16:33:46,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 16:33:46,915 INFO L495 AbstractCegarLoop]: Abstraction has 9249 states and 12058 transitions. [2022-11-16 16:33:46,915 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-11-16 16:33:46,915 INFO L276 IsEmpty]: Start isEmpty. Operand 9249 states and 12058 transitions. [2022-11-16 16:33:46,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2022-11-16 16:33:46,918 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 16:33:46,918 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 5, 5, 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] [2022-11-16 16:33:46,918 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-11-16 16:33:46,918 INFO L420 AbstractCegarLoop]: === Iteration 39 === 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 32 more)] === [2022-11-16 16:33:46,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 16:33:46,919 INFO L85 PathProgramCache]: Analyzing trace with hash -1811839172, now seen corresponding path program 1 times [2022-11-16 16:33:46,919 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 16:33:46,919 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1380176289] [2022-11-16 16:33:46,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:33:46,919 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 16:33:47,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 16:33:47,969 INFO L134 CoverageAnalysis]: Checked inductivity of 207 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 207 trivial. 0 not checked. [2022-11-16 16:33:47,969 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 16:33:47,969 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1380176289] [2022-11-16 16:33:47,969 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1380176289] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 16:33:47,969 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 16:33:47,969 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 16:33:47,969 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1370876912] [2022-11-16 16:33:47,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 16:33:47,970 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 16:33:47,970 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 16:33:47,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 16:33:47,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-16 16:33:47,971 INFO L87 Difference]: Start difference. First operand 9249 states and 12058 transitions. Second operand has 5 states, 5 states have (on average 14.8) internal successors, (74), 4 states have internal predecessors, (74), 2 states have call successors, (28), 3 states have call predecessors, (28), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2022-11-16 16:33:51,094 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:33:54,847 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:33:57,781 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:33:59,255 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:34:00,492 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:34:02,301 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.81s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:34:03,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 16:34:03,179 INFO L93 Difference]: Finished difference Result 9249 states and 12058 transitions. [2022-11-16 16:34:03,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 16:34:03,180 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 4 states have internal predecessors, (74), 2 states have call successors, (28), 3 states have call predecessors, (28), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 176 [2022-11-16 16:34:03,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 16:34:03,201 INFO L225 Difference]: With dead ends: 9249 [2022-11-16 16:34:03,201 INFO L226 Difference]: Without dead ends: 9247 [2022-11-16 16:34:03,205 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-16 16:34:03,205 INFO L413 NwaCegarLoop]: 1422 mSDtfsCounter, 1241 mSDsluCounter, 3191 mSDsCounter, 0 mSdLazyCounter, 846 mSolverCounterSat, 2 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1243 SdHoareTripleChecker+Valid, 4613 SdHoareTripleChecker+Invalid, 850 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 846 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.0s IncrementalHoareTripleChecker+Time [2022-11-16 16:34:03,205 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1243 Valid, 4613 Invalid, 850 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 846 Invalid, 2 Unknown, 0 Unchecked, 14.0s Time] [2022-11-16 16:34:03,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9247 states. [2022-11-16 16:34:04,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9247 to 9247. [2022-11-16 16:34:04,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9247 states, 5521 states have (on average 1.2452454265531607) internal successors, (6875), 5733 states have internal predecessors, (6875), 2562 states have call successors, (2562), 1145 states have call predecessors, (2562), 1141 states have return successors, (2616), 2480 states have call predecessors, (2616), 2558 states have call successors, (2616) [2022-11-16 16:34:04,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9247 states to 9247 states and 12053 transitions. [2022-11-16 16:34:04,204 INFO L78 Accepts]: Start accepts. Automaton has 9247 states and 12053 transitions. Word has length 176 [2022-11-16 16:34:04,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 16:34:04,204 INFO L495 AbstractCegarLoop]: Abstraction has 9247 states and 12053 transitions. [2022-11-16 16:34:04,205 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 4 states have internal predecessors, (74), 2 states have call successors, (28), 3 states have call predecessors, (28), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2022-11-16 16:34:04,205 INFO L276 IsEmpty]: Start isEmpty. Operand 9247 states and 12053 transitions. [2022-11-16 16:34:04,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2022-11-16 16:34:04,209 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 16:34:04,209 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 16:34:04,209 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-11-16 16:34:04,210 INFO L420 AbstractCegarLoop]: === Iteration 40 === 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 32 more)] === [2022-11-16 16:34:04,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 16:34:04,210 INFO L85 PathProgramCache]: Analyzing trace with hash 1917366401, now seen corresponding path program 1 times [2022-11-16 16:34:04,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 16:34:04,211 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [791684080] [2022-11-16 16:34:04,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:34:04,211 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 16:34:04,377 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-16 16:34:04,377 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1160477817] [2022-11-16 16:34:04,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:34:04,378 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 16:34:04,378 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a2e7ad-cbec-46fb-8f46-1228591dd582/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 16:34:04,380 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a2e7ad-cbec-46fb-8f46-1228591dd582/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 16:34:04,381 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a2e7ad-cbec-46fb-8f46-1228591dd582/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-16 16:34:07,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 16:34:07,381 INFO L263 TraceCheckSpWp]: Trace formula consists of 3765 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-16 16:34:07,390 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 16:34:07,440 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 178 trivial. 0 not checked. [2022-11-16 16:34:07,440 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 16:34:07,440 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 16:34:07,440 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [791684080] [2022-11-16 16:34:07,440 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-16 16:34:07,440 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1160477817] [2022-11-16 16:34:07,440 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1160477817] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 16:34:07,441 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 16:34:07,441 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 16:34:07,441 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [115516355] [2022-11-16 16:34:07,441 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 16:34:07,442 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 16:34:07,442 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 16:34:07,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 16:34:07,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 16:34:07,442 INFO L87 Difference]: Start difference. First operand 9247 states and 12053 transitions. Second operand has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2022-11-16 16:34:10,283 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:34:13,812 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:34:16,897 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.82s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:34:18,403 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:34:19,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 16:34:19,270 INFO L93 Difference]: Finished difference Result 18748 states and 24518 transitions. [2022-11-16 16:34:19,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 16:34:19,271 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 174 [2022-11-16 16:34:19,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 16:34:19,292 INFO L225 Difference]: With dead ends: 18748 [2022-11-16 16:34:19,292 INFO L226 Difference]: Without dead ends: 9522 [2022-11-16 16:34:19,307 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 173 GetRequests, 172 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 16:34:19,307 INFO L413 NwaCegarLoop]: 1413 mSDtfsCounter, 16 mSDsluCounter, 1399 mSDsCounter, 0 mSdLazyCounter, 523 mSolverCounterSat, 3 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 2812 SdHoareTripleChecker+Invalid, 528 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 523 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.5s IncrementalHoareTripleChecker+Time [2022-11-16 16:34:19,307 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 2812 Invalid, 528 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 523 Invalid, 2 Unknown, 0 Unchecked, 10.5s Time] [2022-11-16 16:34:19,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9522 states. [2022-11-16 16:34:20,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9522 to 9269. [2022-11-16 16:34:20,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9269 states, 5543 states have (on average 1.2442720548439474) internal successors, (6897), 5755 states have internal predecessors, (6897), 2562 states have call successors, (2562), 1145 states have call predecessors, (2562), 1141 states have return successors, (2616), 2480 states have call predecessors, (2616), 2558 states have call successors, (2616) [2022-11-16 16:34:20,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9269 states to 9269 states and 12075 transitions. [2022-11-16 16:34:20,421 INFO L78 Accepts]: Start accepts. Automaton has 9269 states and 12075 transitions. Word has length 174 [2022-11-16 16:34:20,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 16:34:20,422 INFO L495 AbstractCegarLoop]: Abstraction has 9269 states and 12075 transitions. [2022-11-16 16:34:20,422 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2022-11-16 16:34:20,422 INFO L276 IsEmpty]: Start isEmpty. Operand 9269 states and 12075 transitions. [2022-11-16 16:34:20,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-11-16 16:34:20,424 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 16:34:20,424 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 5, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 16:34:20,444 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a2e7ad-cbec-46fb-8f46-1228591dd582/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-11-16 16:34:20,624 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a2e7ad-cbec-46fb-8f46-1228591dd582/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2022-11-16 16:34:20,625 INFO L420 AbstractCegarLoop]: === Iteration 41 === 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 32 more)] === [2022-11-16 16:34:20,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 16:34:20,625 INFO L85 PathProgramCache]: Analyzing trace with hash 1434665576, now seen corresponding path program 1 times [2022-11-16 16:34:20,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 16:34:20,625 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [577803330] [2022-11-16 16:34:20,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:34:20,625 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 16:34:21,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 16:34:21,819 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 251 trivial. 0 not checked. [2022-11-16 16:34:21,819 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 16:34:21,819 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [577803330] [2022-11-16 16:34:21,820 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [577803330] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 16:34:21,820 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 16:34:21,820 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-16 16:34:21,820 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1884145270] [2022-11-16 16:34:21,820 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 16:34:21,821 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 16:34:21,821 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 16:34:21,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 16:34:21,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-16 16:34:21,822 INFO L87 Difference]: Start difference. First operand 9269 states and 12075 transitions. Second operand has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 5 states have internal predecessors, (77), 3 states have call successors, (30), 3 states have call predecessors, (30), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-11-16 16:34:26,190 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:34:28,195 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:34:32,897 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:34:37,320 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:34:38,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 16:34:38,548 INFO L93 Difference]: Finished difference Result 9492 states and 12248 transitions. [2022-11-16 16:34:38,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 16:34:38,549 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 5 states have internal predecessors, (77), 3 states have call successors, (30), 3 states have call predecessors, (30), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 182 [2022-11-16 16:34:38,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 16:34:38,576 INFO L225 Difference]: With dead ends: 9492 [2022-11-16 16:34:38,576 INFO L226 Difference]: Without dead ends: 9490 [2022-11-16 16:34:38,579 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2022-11-16 16:34:38,580 INFO L413 NwaCegarLoop]: 1531 mSDtfsCounter, 2477 mSDsluCounter, 3354 mSDsCounter, 0 mSdLazyCounter, 861 mSolverCounterSat, 718 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2481 SdHoareTripleChecker+Valid, 4885 SdHoareTripleChecker+Invalid, 1583 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 718 IncrementalHoareTripleChecker+Valid, 861 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.2s IncrementalHoareTripleChecker+Time [2022-11-16 16:34:38,580 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2481 Valid, 4885 Invalid, 1583 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [718 Valid, 861 Invalid, 4 Unknown, 0 Unchecked, 15.2s Time] [2022-11-16 16:34:38,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9490 states. [2022-11-16 16:34:39,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9490 to 9325. [2022-11-16 16:34:39,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9325 states, 5581 states have (on average 1.2415337753090845) internal successors, (6929), 5791 states have internal predecessors, (6929), 2546 states have call successors, (2546), 1180 states have call predecessors, (2546), 1175 states have return successors, (2600), 2465 states have call predecessors, (2600), 2542 states have call successors, (2600) [2022-11-16 16:34:40,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9325 states to 9325 states and 12075 transitions. [2022-11-16 16:34:40,007 INFO L78 Accepts]: Start accepts. Automaton has 9325 states and 12075 transitions. Word has length 182 [2022-11-16 16:34:40,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 16:34:40,007 INFO L495 AbstractCegarLoop]: Abstraction has 9325 states and 12075 transitions. [2022-11-16 16:34:40,008 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 5 states have internal predecessors, (77), 3 states have call successors, (30), 3 states have call predecessors, (30), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-11-16 16:34:40,008 INFO L276 IsEmpty]: Start isEmpty. Operand 9325 states and 12075 transitions. [2022-11-16 16:34:40,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2022-11-16 16:34:40,013 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 16:34:40,013 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 5, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 16:34:40,013 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-11-16 16:34:40,013 INFO L420 AbstractCegarLoop]: === Iteration 42 === 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 32 more)] === [2022-11-16 16:34:40,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 16:34:40,014 INFO L85 PathProgramCache]: Analyzing trace with hash 257869342, now seen corresponding path program 1 times [2022-11-16 16:34:40,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 16:34:40,014 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1253896858] [2022-11-16 16:34:40,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:34:40,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 16:34:40,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 16:34:40,835 INFO L134 CoverageAnalysis]: Checked inductivity of 257 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 255 trivial. 0 not checked. [2022-11-16 16:34:40,835 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 16:34:40,835 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1253896858] [2022-11-16 16:34:40,835 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1253896858] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 16:34:40,836 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 16:34:40,836 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 16:34:40,836 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1534128602] [2022-11-16 16:34:40,836 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 16:34:40,836 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 16:34:40,837 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 16:34:40,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 16:34:40,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-16 16:34:40,837 INFO L87 Difference]: Start difference. First operand 9325 states and 12075 transitions. Second operand has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 2 states have call successors, (33), 3 states have call predecessors, (33), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2022-11-16 16:34:44,256 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:34:48,737 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:34:53,982 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 [] [2022-11-16 16:34:55,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 16:34:55,121 INFO L93 Difference]: Finished difference Result 9333 states and 12079 transitions. [2022-11-16 16:34:55,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 16:34:55,122 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 2 states have call successors, (33), 3 states have call predecessors, (33), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) Word has length 198 [2022-11-16 16:34:55,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 16:34:55,143 INFO L225 Difference]: With dead ends: 9333 [2022-11-16 16:34:55,143 INFO L226 Difference]: Without dead ends: 9331 [2022-11-16 16:34:55,146 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-16 16:34:55,147 INFO L413 NwaCegarLoop]: 1443 mSDtfsCounter, 125 mSDsluCounter, 4262 mSDsCounter, 0 mSdLazyCounter, 1035 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 5705 SdHoareTripleChecker+Invalid, 1038 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1035 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.7s IncrementalHoareTripleChecker+Time [2022-11-16 16:34:55,147 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [126 Valid, 5705 Invalid, 1038 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1035 Invalid, 3 Unknown, 0 Unchecked, 12.7s Time] [2022-11-16 16:34:55,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9331 states. [2022-11-16 16:34:56,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9331 to 9323. [2022-11-16 16:34:56,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9323 states, 5580 states have (on average 1.2403225806451612) internal successors, (6921), 5789 states have internal predecessors, (6921), 2546 states have call successors, (2546), 1180 states have call predecessors, (2546), 1175 states have return successors, (2600), 2465 states have call predecessors, (2600), 2542 states have call successors, (2600) [2022-11-16 16:34:56,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9323 states to 9323 states and 12067 transitions. [2022-11-16 16:34:56,445 INFO L78 Accepts]: Start accepts. Automaton has 9323 states and 12067 transitions. Word has length 198 [2022-11-16 16:34:56,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 16:34:56,445 INFO L495 AbstractCegarLoop]: Abstraction has 9323 states and 12067 transitions. [2022-11-16 16:34:56,445 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 2 states have call successors, (33), 3 states have call predecessors, (33), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2022-11-16 16:34:56,445 INFO L276 IsEmpty]: Start isEmpty. Operand 9323 states and 12067 transitions. [2022-11-16 16:34:56,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2022-11-16 16:34:56,451 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 16:34:56,451 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 16:34:56,452 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-11-16 16:34:56,452 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting ldv_linux_block_genhd_del_gendiskErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-11-16 16:34:56,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 16:34:56,452 INFO L85 PathProgramCache]: Analyzing trace with hash -1545978610, now seen corresponding path program 1 times [2022-11-16 16:34:56,453 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 16:34:56,453 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1478932569] [2022-11-16 16:34:56,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:34:56,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 16:34:56,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 16:34:57,379 INFO L134 CoverageAnalysis]: Checked inductivity of 419 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 419 trivial. 0 not checked. [2022-11-16 16:34:57,380 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 16:34:57,380 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1478932569] [2022-11-16 16:34:57,380 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1478932569] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 16:34:57,380 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 16:34:57,380 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-16 16:34:57,380 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2056624258] [2022-11-16 16:34:57,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 16:34:57,381 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 16:34:57,381 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 16:34:57,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 16:34:57,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-16 16:34:57,382 INFO L87 Difference]: Start difference. First operand 9323 states and 12067 transitions. Second operand has 7 states, 6 states have (on average 14.166666666666666) internal successors, (85), 5 states have internal predecessors, (85), 2 states have call successors, (44), 2 states have call predecessors, (44), 3 states have return successors, (42), 4 states have call predecessors, (42), 2 states have call successors, (42) [2022-11-16 16:35:01,273 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 [] [2022-11-16 16:35:06,273 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:35:12,763 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:35:14,776 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:35:16,782 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:35:18,557 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.77s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:35:20,569 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:35:22,582 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 [] [2022-11-16 16:35:23,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 16:35:23,830 INFO L93 Difference]: Finished difference Result 11108 states and 14246 transitions. [2022-11-16 16:35:23,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 16:35:23,830 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 14.166666666666666) internal successors, (85), 5 states have internal predecessors, (85), 2 states have call successors, (44), 2 states have call predecessors, (44), 3 states have return successors, (42), 4 states have call predecessors, (42), 2 states have call successors, (42) Word has length 248 [2022-11-16 16:35:23,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 16:35:23,851 INFO L225 Difference]: With dead ends: 11108 [2022-11-16 16:35:23,851 INFO L226 Difference]: Without dead ends: 9661 [2022-11-16 16:35:23,856 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-16 16:35:23,856 INFO L413 NwaCegarLoop]: 1504 mSDtfsCounter, 37 mSDsluCounter, 7443 mSDsCounter, 0 mSdLazyCounter, 1609 mSolverCounterSat, 0 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 8947 SdHoareTripleChecker+Invalid, 1615 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1609 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 25.0s IncrementalHoareTripleChecker+Time [2022-11-16 16:35:23,857 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 8947 Invalid, 1615 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1609 Invalid, 6 Unknown, 0 Unchecked, 25.0s Time] [2022-11-16 16:35:23,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9661 states. [2022-11-16 16:35:25,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9661 to 9353. [2022-11-16 16:35:25,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9353 states, 5600 states have (on average 1.2394642857142857) internal successors, (6941), 5809 states have internal predecessors, (6941), 2546 states have call successors, (2546), 1180 states have call predecessors, (2546), 1185 states have return successors, (2610), 2475 states have call predecessors, (2610), 2542 states have call successors, (2610) [2022-11-16 16:35:25,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9353 states to 9353 states and 12097 transitions. [2022-11-16 16:35:25,039 INFO L78 Accepts]: Start accepts. Automaton has 9353 states and 12097 transitions. Word has length 248 [2022-11-16 16:35:25,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 16:35:25,039 INFO L495 AbstractCegarLoop]: Abstraction has 9353 states and 12097 transitions. [2022-11-16 16:35:25,039 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 14.166666666666666) internal successors, (85), 5 states have internal predecessors, (85), 2 states have call successors, (44), 2 states have call predecessors, (44), 3 states have return successors, (42), 4 states have call predecessors, (42), 2 states have call successors, (42) [2022-11-16 16:35:25,039 INFO L276 IsEmpty]: Start isEmpty. Operand 9353 states and 12097 transitions. [2022-11-16 16:35:25,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2022-11-16 16:35:25,043 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 16:35:25,043 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 6, 4, 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, 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] [2022-11-16 16:35:25,043 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-11-16 16:35:25,043 INFO L420 AbstractCegarLoop]: === Iteration 44 === 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 32 more)] === [2022-11-16 16:35:25,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 16:35:25,044 INFO L85 PathProgramCache]: Analyzing trace with hash 1038992358, now seen corresponding path program 1 times [2022-11-16 16:35:25,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 16:35:25,044 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1713778465] [2022-11-16 16:35:25,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:35:25,044 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 16:35:25,230 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-16 16:35:25,230 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1928908574] [2022-11-16 16:35:25,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:35:25,231 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 16:35:25,231 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a2e7ad-cbec-46fb-8f46-1228591dd582/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 16:35:25,238 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a2e7ad-cbec-46fb-8f46-1228591dd582/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 16:35:25,255 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a2e7ad-cbec-46fb-8f46-1228591dd582/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-16 16:35:29,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 16:35:29,749 INFO L263 TraceCheckSpWp]: Trace formula consists of 4119 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-16 16:35:29,758 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 16:35:29,858 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 38 proven. 1 refuted. 0 times theorem prover too weak. 225 trivial. 0 not checked. [2022-11-16 16:35:29,858 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 16:35:30,241 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 263 trivial. 0 not checked. [2022-11-16 16:35:30,241 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 16:35:30,242 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1713778465] [2022-11-16 16:35:30,242 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-16 16:35:30,242 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1928908574] [2022-11-16 16:35:30,242 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1928908574] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 16:35:30,242 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1058559042] [2022-11-16 16:35:30,268 INFO L159 IcfgInterpreter]: Started Sifa with 151 locations of interest [2022-11-16 16:35:30,268 INFO L166 IcfgInterpreter]: Building call graph [2022-11-16 16:35:30,272 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-16 16:35:30,277 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-16 16:35:30,277 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-16 16:35:32,880 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 45 select indices, 45 select index equivalence classes, 1035 disjoint index pairs (out of 990 index pairs), introduced 45 new quantified variables, introduced 0 case distinctions, treesize of input 1420 treesize of output 1250 [2022-11-16 16:35:34,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:35:34,203 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:35:34,209 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:35:34,214 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:35:34,218 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:35:34,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:35:34,227 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:35:34,231 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:35:34,236 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:35:34,240 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:35:34,244 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:35:34,249 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:35:34,253 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:35:34,258 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:35:34,262 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:35:34,267 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:35:34,271 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:35:34,276 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:35:34,280 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:35:34,288 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:35:34,292 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:35:34,297 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:35:34,301 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:35:34,306 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:35:34,310 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:35:34,314 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:35:34,318 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:35:34,322 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:35:34,326 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:35:34,330 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:35:34,335 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:35:34,339 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:35:34,343 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:35:34,347 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:35:34,349 INFO L217 Elim1Store]: Index analysis took 155 ms [2022-11-16 16:35:34,683 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 41 select indices, 41 select index equivalence classes, 347 disjoint index pairs (out of 820 index pairs), introduced 41 new quantified variables, introduced 0 case distinctions, treesize of input 383 treesize of output 491 [2022-11-16 16:35:34,961 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:35:34,965 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:35:34,969 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:35:34,973 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:35:34,977 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:35:34,981 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:35:34,985 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:35:34,989 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:35:34,993 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:35:34,997 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:35:35,001 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:35:35,005 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:35:35,009 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:35:35,013 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:35:35,017 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:35:35,021 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:35:35,026 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:35:35,032 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:35:35,037 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:35:35,042 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:35:35,047 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:35:35,052 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:35:35,057 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:35:35,062 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:35:35,067 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:35:35,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:35:35,076 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:35:35,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:35:35,086 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:35:35,091 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:35:35,095 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:35:35,100 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:35:35,104 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:35:35,110 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:35:35,111 INFO L217 Elim1Store]: Index analysis took 154 ms [2022-11-16 16:35:35,413 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 41 select indices, 41 select index equivalence classes, 347 disjoint index pairs (out of 820 index pairs), introduced 41 new quantified variables, introduced 0 case distinctions, treesize of input 387 treesize of output 491 [2022-11-16 16:35:35,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:35:35,694 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:35:35,698 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:35:35,701 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:35:35,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:35:35,709 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:35:35,712 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:35:35,716 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:35:35,720 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:35:35,723 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:35:35,727 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:35:35,731 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:35:35,734 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:35:35,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:35:35,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:35:35,746 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:35:35,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:35:35,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:35:35,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:35:35,762 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:35:35,765 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:35:35,769 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:35:35,773 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:35:35,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:35:35,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:35:35,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:35:35,788 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:35:35,792 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:35:35,796 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:35:35,799 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:35:35,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:35:35,807 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:35:35,810 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:35:35,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:35:35,816 INFO L217 Elim1Store]: Index analysis took 129 ms [2022-11-16 16:35:36,100 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 41 select indices, 41 select index equivalence classes, 347 disjoint index pairs (out of 820 index pairs), introduced 41 new quantified variables, introduced 0 case distinctions, treesize of input 387 treesize of output 491 [2022-11-16 16:35:36,352 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:35:36,355 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:35:36,360 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:35:36,364 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:35:36,368 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:35:36,372 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:35:36,375 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:35:36,379 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:35:36,382 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:35:36,385 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:35:36,388 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:35:36,392 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:35:36,395 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:35:36,398 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:35:36,402 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:35:36,406 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:35:36,409 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:35:36,413 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:35:36,417 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:35:36,420 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:35:36,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:35:36,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:35:36,430 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:35:36,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:35:36,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:35:36,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:35:36,444 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:35:36,447 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:35:36,451 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:35:36,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:35:36,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:35:36,461 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:35:36,465 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:35:36,468 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:35:36,471 INFO L217 Elim1Store]: Index analysis took 122 ms [2022-11-16 16:35:36,735 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 41 select indices, 41 select index equivalence classes, 348 disjoint index pairs (out of 820 index pairs), introduced 41 new quantified variables, introduced 0 case distinctions, treesize of input 392 treesize of output 500 [2022-11-16 16:35:37,523 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:35:37,528 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:35:37,533 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:35:37,537 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:35:37,541 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:35:37,545 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:35:37,549 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:35:37,552 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:35:37,556 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:35:37,559 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:35:37,563 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:35:37,566 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:35:37,569 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:35:37,573 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:35:37,577 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:35:37,580 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:35:37,584 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:35:37,588 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:35:37,592 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:35:37,596 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:35:37,599 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:35:37,603 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:35:37,606 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:35:37,610 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:35:37,614 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:35:37,617 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:35:37,622 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:35:37,627 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:35:37,631 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:35:37,635 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:35:37,639 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:35:37,642 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:35:37,646 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:35:37,649 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:35:37,654 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:35:37,658 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:35:37,659 INFO L217 Elim1Store]: Index analysis took 139 ms [2022-11-16 16:35:37,960 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 41 select indices, 41 select index equivalence classes, 350 disjoint index pairs (out of 820 index pairs), introduced 41 new quantified variables, introduced 0 case distinctions, treesize of input 393 treesize of output 505 [2022-11-16 16:35:38,200 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:35:38,203 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:35:38,207 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:35:38,210 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:35:38,214 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:35:38,217 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:35:38,221 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:35:38,224 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:35:38,227 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:35:38,231 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:35:38,234 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:35:38,238 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:35:38,241 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:35:38,245 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:35:38,248 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:35:38,252 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:35:38,255 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:35:38,259 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:35:38,263 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:35:38,266 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:35:38,270 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:35:38,273 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:35:38,277 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:35:38,280 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:35:38,284 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:35:38,287 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:35:38,291 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:35:38,294 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:35:38,297 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:35:38,301 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:35:38,304 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:35:38,308 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:35:38,311 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:35:38,315 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:35:38,317 INFO L217 Elim1Store]: Index analysis took 120 ms [2022-11-16 16:35:38,583 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 41 select indices, 41 select index equivalence classes, 347 disjoint index pairs (out of 820 index pairs), introduced 41 new quantified variables, introduced 0 case distinctions, treesize of input 385 treesize of output 489 [2022-11-16 16:35:38,812 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:35:38,816 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:35:38,819 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:35:38,823 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:35:38,826 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:35:38,830 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:35:38,834 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:35:38,838 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:35:38,842 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:35:38,845 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:35:38,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:35:38,852 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:35:38,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:35:38,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:35:38,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:35:38,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:35:38,870 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:35:38,873 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:35:38,877 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:35:38,881 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:35:38,884 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:35:38,888 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:35:38,891 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:35:38,895 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:35:38,898 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:35:38,902 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:35:38,905 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:35:38,909 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:35:38,914 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:35:38,918 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:35:38,922 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:35:38,925 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:35:38,928 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:35:38,932 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:35:38,934 INFO L217 Elim1Store]: Index analysis took 125 ms [2022-11-16 16:35:39,193 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 41 select indices, 41 select index equivalence classes, 347 disjoint index pairs (out of 820 index pairs), introduced 41 new quantified variables, introduced 0 case distinctions, treesize of input 385 treesize of output 489